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Commit 114bf3f1 by Matthias Klose Committed by Matthias Klose
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Makefile.def: Remove reference to boehm-gc target module. 

<toplevel>

2016-11-30  Matthias Klose  <doko@ubuntu.com>

        * Makefile.def: Remove reference to boehm-gc target module.
        * configure.ac: Include pkg.m4, check for --with-target-bdw-gc
        options and for the bdw-gc pkg-config module.
        * configure: Regenerate.
        * Makefile.in: Regenerate.

gcc/

2016-11-30  Matthias Klose  <doko@ubuntu.com>

        * doc/install.texi: Document configure options --enable-objc-gc
        and --with-target-bdw-gc.

config/

2016-11-30  Matthias Klose  <doko@ubuntu.com>

        * pkg.m4: New file.

libobjc/

2016-11-30  Matthias Klose  <doko@ubuntu.com>

        * configure.ac (--enable-objc-gc): Allow to configure with a
        system provided boehm-gc.
        * configure: Regenerate.
        * Makefile.in (OBJC_BOEHM_GC_LIBS): Get value from configure.
        * gc.c: Include system bdw-gc headers.
        * memory.c: Likewise
        * objects.c: Likewise

boehm-gc/

2016-11-30  Matthias Klose  <doko@ubuntu.com>

        Remove

From-SVN: r242985
parent a2b403c8
Showing with 8 additions and 5112 deletions
ChangeLog
2016-11-30 Matthias Klose <doko@ubuntu.com>
* Makefile.def: Remove reference to boehm-gc target module.
* configure.ac: Include pkg.m4, check for --with-target-bdw-gc
options and for the bdw-gc pkg-config module.
* configure: Regenerate.
* Makefile.in: Regenerate.
2016-11-28 Nathan Sidwell <nathan@acm.org> 2016-11-28 Nathan Sidwell <nathan@acm.org>
* MAINTAINERS (nvptx): Remove self. * MAINTAINERS (nvptx): Remove self.
......
Makefile.def
...@@ -166,7 +166,6 @@ target_modules = { module= winsup; }; ...@@ -166,7 +166,6 @@ target_modules = { module= winsup; };
target_modules = { module= libgloss; no_check=true; }; target_modules = { module= libgloss; no_check=true; };
target_modules = { module= libffi; no_install=true; }; target_modules = { module= libffi; no_install=true; };
target_modules = { module= zlib; }; target_modules = { module= zlib; };
target_modules = { module= boehm-gc; };
target_modules = { module= rda; }; target_modules = { module= rda; };
target_modules = { module= libada; }; target_modules = { module= libada; };
target_modules = { module= libgomp; bootstrap= true; lib_path=.libs; }; target_modules = { module= libgomp; bootstrap= true; lib_path=.libs; };
...@@ -543,7 +542,6 @@ lang_env_dependencies = { module=libgcc; no_gcc=true; no_c=true; }; ...@@ -543,7 +542,6 @@ lang_env_dependencies = { module=libgcc; no_gcc=true; no_c=true; };
// a dependency on libgcc for native targets to configure. // a dependency on libgcc for native targets to configure.
lang_env_dependencies = { module=libiberty; no_c=true; }; lang_env_dependencies = { module=libiberty; no_c=true; };
dependencies = { module=configure-target-boehm-gc; on=all-target-libstdc++-v3; };
dependencies = { module=configure-target-fastjar; on=configure-target-zlib; }; dependencies = { module=configure-target-fastjar; on=configure-target-zlib; };
dependencies = { module=all-target-fastjar; on=all-target-zlib; }; dependencies = { module=all-target-fastjar; on=all-target-zlib; };
dependencies = { module=configure-target-libgo; on=configure-target-libffi; }; dependencies = { module=configure-target-libgo; on=configure-target-libffi; };
...@@ -551,8 +549,6 @@ dependencies = { module=configure-target-libgo; on=all-target-libstdc++-v3; }; ...@@ -551,8 +549,6 @@ dependencies = { module=configure-target-libgo; on=all-target-libstdc++-v3; };
dependencies = { module=all-target-libgo; on=all-target-libbacktrace; }; dependencies = { module=all-target-libgo; on=all-target-libbacktrace; };
dependencies = { module=all-target-libgo; on=all-target-libffi; }; dependencies = { module=all-target-libgo; on=all-target-libffi; };
dependencies = { module=all-target-libgo; on=all-target-libatomic; }; dependencies = { module=all-target-libgo; on=all-target-libatomic; };
dependencies = { module=configure-target-libobjc; on=configure-target-boehm-gc; };
dependencies = { module=all-target-libobjc; on=all-target-boehm-gc; };
dependencies = { module=configure-target-libstdc++-v3; on=configure-target-libgomp; }; dependencies = { module=configure-target-libstdc++-v3; on=configure-target-libgomp; };
dependencies = { module=configure-target-liboffloadmic; on=configure-target-libgomp; }; dependencies = { module=configure-target-liboffloadmic; on=configure-target-libgomp; };
dependencies = { module=configure-target-libsanitizer; on=all-target-libstdc++-v3; }; dependencies = { module=configure-target-libsanitizer; on=all-target-libstdc++-v3; };
......
boehm-gc/BCC_MAKEFILE deleted 100644 → 0
# Makefile for Borland C++ 5.5 on NT
# If you have the Borland assembler, remove "-DUSE_GENERIC"
#
bc= c:\Borland\BCC55
bcbin= $(bc)\bin
bclib= $(bc)\lib
bcinclude= $(bc)\include
gcinclude1 = $(bc)\gc6.2\include
gcinclude2 = $(bc)\gc6.2\cord
cc= $(bcbin)\bcc32
rc= $(bcbin)\brc32
lib= $(bcbin)\tlib
link= $(bcbin)\ilink32
cflags= -O2 -R -v- -vi -H -H=gc.csm -I$(bcinclude);$(gcinclude1);$(gcinclude2) -L$(bclib) \
-w-pro -w-aus -w-par -w-ccc -w-rch -a4 -D__STDC__=0
#defines= -DSILENT
defines= -DSILENT -DALL_INTERIOR_POINTERS -DUSE_GENERIC -DNO_GETENV -DJAVA_FINALIZATION -DGC_OPERATOR_NEW_ARRAY
.c.obj:
$(cc) @&&|
$(cdebug) $(cflags) $(cvars) $(defines) -o$* -c $*.c
|
.cpp.obj:
$(cc) @&&|
$(cdebug) $(cflags) $(cvars) $(defines) -o$* -c $*.cpp
|
.rc.res:
$(rc) -i$(bcinclude) -r -fo$* $*.rc
XXXOBJS= XXXalloc.obj XXXreclaim.obj XXXallchblk.obj XXXmisc.obj \
XXXmach_dep.obj XXXos_dep.obj XXXmark_rts.obj XXXheaders.obj XXXmark.obj \
XXXobj_map.obj XXXblacklst.obj XXXfinalize.obj XXXnew_hblk.obj \
XXXdbg_mlc.obj XXXmalloc.obj XXXstubborn.obj XXXdyn_load.obj \
XXXtypd_mlc.obj XXXptr_chck.obj XXXgc_cpp.obj XXXmallocx.obj
OBJS= $(XXXOBJS:XXX=)
all: gctest.exe cord\de.exe test_cpp.exe
$(OBJS) test.obj: include\private\gc_priv.h include\private\gc_hdrs.h include\gc.h include\private\gcconfig.h MAKEFILE
gc.lib: $(OBJS)
del gc.lib
$(lib) $* @&&|
$(XXXOBJS:XXX=+)
|
gctest.exe: tests\test.obj gc.lib
$(cc) @&&|
$(cflags) -W -e$* tests\test.obj gc.lib
|
cord\de.obj cord\de_win.obj: include\cord.h include\private\cord_pos.h cord\de_win.h \
cord\de_cmds.h
cord\de.exe: cord\cordbscs.obj cord\cordxtra.obj cord\de.obj cord\de_win.obj \
cord\de_win.res gc.lib
$(cc) @&&|
$(cflags) -W -e$* cord\cordbscs.obj cord\cordxtra.obj \
cord\de.obj cord\de_win.obj gc.lib
|
$(rc) cord\de_win.res cord\de.exe
gc_cpp.obj: include\gc_cpp.h include\gc.h
gc_cpp.cpp: gc_cpp.cc
copy gc_cpp.cc gc_cpp.cpp
test_cpp.cpp: tests\test_cpp.cc
copy tests\test_cpp.cc test_cpp.cpp
test_cpp.exe: test_cpp.obj include\gc_cpp.h include\gc.h gc.lib
$(cc) @&&|
$(cflags) -W -e$* test_cpp.obj gc.lib
|
scratch:
-del *.obj *.res *.exe *.csm cord\*.obj cord\*.res cord\*.exe cord\*.csm
clean:
del gc.lib
del *.obj
del tests\test.obj
boehm-gc/EMX_MAKEFILE deleted 100644 → 0
#
# OS/2 specific Makefile for the EMX environment
#
# You need GNU Make 3.71, gcc 2.5.7, emx 0.8h and GNU fileutils 3.9
# or similar tools. C++ interface and de.exe weren't tested.
#
# Rename this file "Makefile".
#
# Primary targets:
# gc.a - builds basic library
# c++ - adds C++ interface to library and include directory
# cords - adds cords (heavyweight strings) to library and include directory
# test - prints porting information, then builds basic version of gc.a, and runs
# some tests of collector and cords. Does not add cords or c++ interface to gc.a
# cord/de.exe - builds dumb editor based on cords.
CC= gcc
CXX=g++
# Needed only for "make c++", which adds the c++ interface
CFLAGS= -O -DALL_INTERIOR_POINTERS -DSILENT
# Setjmp_test may yield overly optimistic results when compiled
# without optimization.
# -DSILENT disables statistics printing, and improves performance.
# -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
# altered stubborn objects, at substantial performance cost.
# -DFIND_LEAK causes the collector to assume that all inaccessible
# objects should have been explicitly deallocated, and reports exceptions
# -DSOLARIS_THREADS enables support for Solaris (thr_) threads.
# (Clients should also define SOLARIS_THREADS and then include
# gc.h before performing thr_ or GC_ operations.)
# -DALL_INTERIOR_POINTERS allows all pointers to the interior
# of objects to be recognized. (See gc_private.h for consequences.)
# -DSMALL_CONFIG tries to tune the collector for small heap sizes,
# usually causing it to use less space in such situations.
# Incremental collection no longer works in this case.
# -DDONT_ADD_BYTE_AT_END is meaningful only with
# -DALL_INTERIOR_POINTERS. Normally -DALL_INTERIOR_POINTERS
# causes all objects to be padded so that pointers just past the end of
# an object can be recognized. This can be expensive. (The padding
# is normally more than one byte due to alignment constraints.)
# -DDONT_ADD_BYTE_AT_END disables the padding.
AR= ar
RANLIB= ar s
# Redefining srcdir allows object code for the nonPCR version of the collector
# to be generated in different directories
srcdir = .
VPATH = $(srcdir)
OBJS= alloc.o reclaim.o allchblk.o misc.o mach_dep.o os_dep.o mark_rts.o headers.o mark.o obj_map.o blacklst.o finalize.o new_hblk.o dyn_load.o dbg_mlc.o malloc.o stubborn.o checksums.o typd_mlc.o ptr_chck.o mallocx.o
CORD_OBJS= cord/cordbscs.o cord/cordxtra.o cord/cordprnt.o
CORD_INCLUDE_FILES= $(srcdir)/gc.h $(srcdir)/cord/cord.h $(srcdir)/cord/ec.h \
$(srcdir)/cord/cord_pos.h
# Libraries needed for curses applications. Only needed for de.
CURSES= -lcurses -ltermlib
# The following is irrelevant on most systems. But a few
# versions of make otherwise fork the shell specified in
# the SHELL environment variable.
SHELL= bash
SPECIALCFLAGS =
# Alternative flags to the C compiler for mach_dep.c.
# Mach_dep.c often doesn't like optimization, and it's
# not time-critical anyway.
all: gc.a gctest.exe
$(OBJS) test.o: $(srcdir)/gc_priv.h $(srcdir)/gc_hdrs.h $(srcdir)/gc.h \
$(srcdir)/gcconfig.h $(srcdir)/gc_typed.h
# The dependency on Makefile is needed. Changing
# options such as -DSILENT affects the size of GC_arrays,
# invalidating all .o files that rely on gc_priv.h
mark.o typd_mlc.o finalize.o: $(srcdir)/include/gc_mark.h $(srcdir)/include/private/gc_pmark.h
gc.a: $(OBJS)
$(AR) ru gc.a $(OBJS)
$(RANLIB) gc.a
cords: $(CORD_OBJS) cord/cordtest.exe
$(AR) ru gc.a $(CORD_OBJS)
$(RANLIB) gc.a
cp $(srcdir)/cord/cord.h include/cord.h
cp $(srcdir)/cord/ec.h include/ec.h
cp $(srcdir)/cord/cord_pos.h include/cord_pos.h
gc_cpp.o: $(srcdir)/gc_cpp.cc $(srcdir)/gc_cpp.h
$(CXX) -c -O $(srcdir)/gc_cpp.cc
c++: gc_cpp.o $(srcdir)/gc_cpp.h
$(AR) ru gc.a gc_cpp.o
$(RANLIB) gc.a
cp $(srcdir)/gc_cpp.h include/gc_cpp.h
mach_dep.o: $(srcdir)/mach_dep.c
$(CC) -o mach_dep.o -c $(SPECIALCFLAGS) $(srcdir)/mach_dep.c
mark_rts.o: $(srcdir)/mark_rts.c
$(CC) -o mark_rts.o -c $(CFLAGS) $(srcdir)/mark_rts.c
cord/cordbscs.o: $(srcdir)/cord/cordbscs.c $(CORD_INCLUDE_FILES)
$(CC) $(CFLAGS) -c $(srcdir)/cord/cordbscs.c -o cord/cordbscs.o
cord/cordxtra.o: $(srcdir)/cord/cordxtra.c $(CORD_INCLUDE_FILES)
$(CC) $(CFLAGS) -c $(srcdir)/cord/cordxtra.c -o cord/cordxtra.o
cord/cordprnt.o: $(srcdir)/cord/cordprnt.c $(CORD_INCLUDE_FILES)
$(CC) $(CFLAGS) -c $(srcdir)/cord/cordprnt.c -o cord/cordprnt.o
cord/cordtest.exe: $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a
$(CC) $(CFLAGS) -o cord/cordtest.exe $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a
cord/de.exe: $(srcdir)/cord/de.c $(srcdir)/cord/cordbscs.o $(srcdir)/cord/cordxtra.o gc.a
$(CC) $(CFLAGS) -o cord/de.exe $(srcdir)/cord/de.c $(srcdir)/cord/cordbscs.o $(srcdir)/cord/cordxtra.o gc.a $(CURSES)
clean:
rm -f gc.a tests/test.o gctest.exe output-local output-diff $(OBJS) \
setjmp_test mon.out gmon.out a.out core \
$(CORD_OBJS) cord/cordtest.exe cord/de.exe
-rm -f *~
gctest.exe: tests/test.o gc.a
$(CC) $(CFLAGS) -o gctest.exe tests/test.o gc.a
# If an optimized setjmp_test generates a segmentation fault,
# odds are your compiler is broken. Gctest may still work.
# Try compiling setjmp_t.c unoptimized.
setjmp_test.exe: $(srcdir)/setjmp_t.c $(srcdir)/gc.h
$(CC) $(CFLAGS) -o setjmp_test.exe $(srcdir)/setjmp_t.c
test: setjmp_test.exe gctest.exe
./setjmp_test
./gctest
make cord/cordtest.exe
cord/cordtest
boehm-gc/MacOS.c deleted 100644 → 0
/*
MacOS.c
Some routines for the Macintosh OS port of the Hans-J. Boehm, Alan J. Demers
garbage collector.
<Revision History>
11/22/94 pcb StripAddress the temporary memory handle for 24-bit mode.
11/30/94 pcb Tracking all memory usage so we can deallocate it all at once.
02/10/96 pcb Added routine to perform a final collection when
unloading shared library.
by Patrick C. Beard.
*/
/* Boehm, February 15, 1996 2:55 pm PST */
#include <Resources.h>
#include <Memory.h>
#include <LowMem.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gc.h"
#include "gc_priv.h"
// use 'CODE' resource 0 to get exact location of the beginning of global space.
typedef struct {
unsigned long aboveA5;
unsigned long belowA5;
unsigned long JTSize;
unsigned long JTOffset;
} *CodeZeroPtr, **CodeZeroHandle;
void* GC_MacGetDataStart()
{
CodeZeroHandle code0 = (CodeZeroHandle)GetResource('CODE', 0);
if (code0) {
long belowA5Size = (**code0).belowA5;
ReleaseResource((Handle)code0);
return (LMGetCurrentA5() - belowA5Size);
}
fprintf(stderr, "Couldn't load the jump table.");
exit(-1);
return 0;
}
/* track the use of temporary memory so it can be freed all at once. */
typedef struct TemporaryMemoryBlock TemporaryMemoryBlock, **TemporaryMemoryHandle;
struct TemporaryMemoryBlock {
TemporaryMemoryHandle nextBlock;
char data[];
};
static TemporaryMemoryHandle theTemporaryMemory = NULL;
static Boolean firstTime = true;
void GC_MacFreeTemporaryMemory(void);
Ptr GC_MacTemporaryNewPtr(size_t size, Boolean clearMemory)
{
static Boolean firstTime = true;
OSErr result;
TemporaryMemoryHandle tempMemBlock;
Ptr tempPtr = nil;
tempMemBlock = (TemporaryMemoryHandle)TempNewHandle(size + sizeof(TemporaryMemoryBlock), &result);
if (tempMemBlock && result == noErr) {
HLockHi((Handle)tempMemBlock);
tempPtr = (**tempMemBlock).data;
if (clearMemory) memset(tempPtr, 0, size);
tempPtr = StripAddress(tempPtr);
// keep track of the allocated blocks.
(**tempMemBlock).nextBlock = theTemporaryMemory;
theTemporaryMemory = tempMemBlock;
}
# if !defined(SHARED_LIBRARY_BUILD)
// install an exit routine to clean up the memory used at the end.
if (firstTime) {
atexit(&GC_MacFreeTemporaryMemory);
firstTime = false;
}
# endif
return tempPtr;
}
extern word GC_fo_entries;
static void perform_final_collection()
{
unsigned i;
word last_fo_entries = 0;
/* adjust the stack bottom, because CFM calls us from another stack
location. */
GC_stackbottom = (ptr_t)&i;
/* try to collect and finalize everything in sight */
for (i = 0; i < 2 || GC_fo_entries < last_fo_entries; i++) {
last_fo_entries = GC_fo_entries;
GC_gcollect();
}
}
void GC_MacFreeTemporaryMemory()
{
# if defined(SHARED_LIBRARY_BUILD)
/* if possible, collect all memory, and invoke all finalizers. */
perform_final_collection();
# endif
if (theTemporaryMemory != NULL) {
long totalMemoryUsed = 0;
TemporaryMemoryHandle tempMemBlock = theTemporaryMemory;
while (tempMemBlock != NULL) {
TemporaryMemoryHandle nextBlock = (**tempMemBlock).nextBlock;
totalMemoryUsed += GetHandleSize((Handle)tempMemBlock);
DisposeHandle((Handle)tempMemBlock);
tempMemBlock = nextBlock;
}
theTemporaryMemory = NULL;
# if !defined(SILENT) && !defined(SHARED_LIBRARY_BUILD)
fprintf(stdout, "[total memory used: %ld bytes.]\n",
totalMemoryUsed);
fprintf(stdout, "[total collections: %ld.]\n", GC_gc_no);
# endif
}
}
#if __option(far_data)
void* GC_MacGetDataEnd()
{
CodeZeroHandle code0 = (CodeZeroHandle)GetResource('CODE', 0);
if (code0) {
long aboveA5Size = (**code0).aboveA5;
ReleaseResource((Handle)code0);
return (LMGetCurrentA5() + aboveA5Size);
}
fprintf(stderr, "Couldn't load the jump table.");
exit(-1);
return 0;
}
#endif /* __option(far_data) */
boehm-gc/Mac_files/MacOS_Test_config.h deleted 100644 → 0
/*
MacOS_Test_config.h
Configuration flags for Macintosh development systems.
Test version.
<Revision History>
11/16/95 pcb Updated compilation flags to reflect latest 4.6 Makefile.
by Patrick C. Beard.
*/
/* Boehm, November 17, 1995 12:05 pm PST */
#ifdef __MWERKS__
// for CodeWarrior Pro with Metrowerks Standard Library (MSL).
// #define MSL_USE_PRECOMPILED_HEADERS 0
#include <ansi_prefix.mac.h>
#ifndef __STDC__
#define __STDC__ 0
#endif
#endif
// these are defined again in gc_priv.h.
#undef TRUE
#undef FALSE
#define ALL_INTERIOR_POINTERS // follows interior pointers.
//#define SILENT // want collection messages.
//#define DONT_ADD_BYTE_AT_END // no padding.
//#define SMALL_CONFIG // whether to a smaller heap.
#define NO_SIGNALS // signals aren't real on the Macintosh.
#define USE_TEMPORARY_MEMORY // use Macintosh temporary memory.
// CFLAGS= -O -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DSILENT
//
//LIBGC_CFLAGS= -O -DNO_SIGNALS -DSILENT \
// -DREDIRECT_MALLOC=GC_malloc_uncollectable \
// -DDONT_ADD_BYTE_AT_END -DALL_INTERIOR_POINTERS
// Flags for building libgc.a -- the last two are required.
//
// Setjmp_test may yield overly optimistic results when compiled
// without optimization.
// -DSILENT disables statistics printing, and improves performance.
// -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
// altered stubborn objects, at substantial performance cost.
// Use only for incremental collector debugging.
// -DFIND_LEAK causes the collector to assume that all inaccessible
// objects should have been explicitly deallocated, and reports exceptions.
// Finalization and the test program are not usable in this mode.
// -DSOLARIS_THREADS enables support for Solaris (thr_) threads.
// (Clients should also define SOLARIS_THREADS and then include
// gc.h before performing thr_ or GC_ operations.)
// This is broken on nonSPARC machines.
// -DALL_INTERIOR_POINTERS allows all pointers to the interior
// of objects to be recognized. (See gc_priv.h for consequences.)
// -DSMALL_CONFIG tries to tune the collector for small heap sizes,
// usually causing it to use less space in such situations.
// Incremental collection no longer works in this case.
// -DLARGE_CONFIG tunes the collector for unusually large heaps.
// Necessary for heaps larger than about 500 MB on most machines.
// Recommended for heaps larger than about 64 MB.
// -DDONT_ADD_BYTE_AT_END is meaningful only with
// -DALL_INTERIOR_POINTERS. Normally -DALL_INTERIOR_POINTERS
// causes all objects to be padded so that pointers just past the end of
// an object can be recognized. This can be expensive. (The padding
// is normally more than one byte due to alignment constraints.)
// -DDONT_ADD_BYTE_AT_END disables the padding.
// -DNO_SIGNALS does not disable signals during critical parts of
// the GC process. This is no less correct than many malloc
// implementations, and it sometimes has a significant performance
// impact. However, it is dangerous for many not-quite-ANSI C
// programs that call things like printf in asynchronous signal handlers.
// -DGC_OPERATOR_NEW_ARRAY declares that the C++ compiler supports the
// new syntax "operator new[]" for allocating and deleting arrays.
// See gc_cpp.h for details. No effect on the C part of the collector.
// This is defined implicitly in a few environments.
// -DREDIRECT_MALLOC=X causes malloc, realloc, and free to be defined
// as aliases for X, GC_realloc, and GC_free, respectively.
// Calloc is redefined in terms of the new malloc. X should
// be either GC_malloc or GC_malloc_uncollectable.
// The former is occasionally useful for working around leaks in code
// you don't want to (or can't) look at. It may not work for
// existing code, but it often does. Neither works on all platforms,
// since some ports use malloc or calloc to obtain system memory.
// (Probably works for UNIX, and win32.)
// -DNO_DEBUG removes GC_dump and the debugging routines it calls.
// Reduces code size slightly at the expense of debuggability.
boehm-gc/Mac_files/MacOS_config.h deleted 100644 → 0
/*
MacOS_config.h
Configuration flags for Macintosh development systems.
<Revision History>
11/16/95 pcb Updated compilation flags to reflect latest 4.6 Makefile.
by Patrick C. Beard.
*/
/* Boehm, November 17, 1995 12:10 pm PST */
#ifdef __MWERKS__
// for CodeWarrior Pro with Metrowerks Standard Library (MSL).
// #define MSL_USE_PRECOMPILED_HEADERS 0
#include <ansi_prefix.mac.h>
#ifndef __STDC__
#define __STDC__ 0
#endif
#endif /* __MWERKS__ */
// these are defined again in gc_priv.h.
#undef TRUE
#undef FALSE
#define ALL_INTERIOR_POINTERS // follows interior pointers.
#define SILENT // no collection messages.
//#define DONT_ADD_BYTE_AT_END // no padding.
//#define SMALL_CONFIG // whether to use a smaller heap.
#define NO_SIGNALS // signals aren't real on the Macintosh.
#define USE_TEMPORARY_MEMORY // use Macintosh temporary memory.
// CFLAGS= -O -DNO_SIGNALS -DSILENT -DALL_INTERIOR_POINTERS
//
//LIBGC_CFLAGS= -O -DNO_SIGNALS -DSILENT \
// -DREDIRECT_MALLOC=GC_malloc_uncollectable \
// -DDONT_ADD_BYTE_AT_END -DALL_INTERIOR_POINTERS
// Flags for building libgc.a -- the last two are required.
//
// Setjmp_test may yield overly optimistic results when compiled
// without optimization.
// -DSILENT disables statistics printing, and improves performance.
// -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
// altered stubborn objects, at substantial performance cost.
// Use only for incremental collector debugging.
// -DFIND_LEAK causes the collector to assume that all inaccessible
// objects should have been explicitly deallocated, and reports exceptions.
// Finalization and the test program are not usable in this mode.
// -DSOLARIS_THREADS enables support for Solaris (thr_) threads.
// (Clients should also define SOLARIS_THREADS and then include
// gc.h before performing thr_ or GC_ operations.)
// This is broken on nonSPARC machines.
// -DALL_INTERIOR_POINTERS allows all pointers to the interior
// of objects to be recognized. (See gc_priv.h for consequences.)
// -DSMALL_CONFIG tries to tune the collector for small heap sizes,
// usually causing it to use less space in such situations.
// Incremental collection no longer works in this case.
// -DLARGE_CONFIG tunes the collector for unusually large heaps.
// Necessary for heaps larger than about 500 MB on most machines.
// Recommended for heaps larger than about 64 MB.
// -DDONT_ADD_BYTE_AT_END is meaningful only with
// -DALL_INTERIOR_POINTERS. Normally -DALL_INTERIOR_POINTERS
// causes all objects to be padded so that pointers just past the end of
// an object can be recognized. This can be expensive. (The padding
// is normally more than one byte due to alignment constraints.)
// -DDONT_ADD_BYTE_AT_END disables the padding.
// -DNO_SIGNALS does not disable signals during critical parts of
// the GC process. This is no less correct than many malloc
// implementations, and it sometimes has a significant performance
// impact. However, it is dangerous for many not-quite-ANSI C
// programs that call things like printf in asynchronous signal handlers.
// -DGC_OPERATOR_NEW_ARRAY declares that the C++ compiler supports the
// new syntax "operator new[]" for allocating and deleting arrays.
// See gc_cpp.h for details. No effect on the C part of the collector.
// This is defined implicitly in a few environments.
// -DREDIRECT_MALLOC=X causes malloc, realloc, and free to be defined
// as aliases for X, GC_realloc, and GC_free, respectively.
// Calloc is redefined in terms of the new malloc. X should
// be either GC_malloc or GC_malloc_uncollectable.
// The former is occasionally useful for working around leaks in code
// you don't want to (or can't) look at. It may not work for
// existing code, but it often does. Neither works on all platforms,
// since some ports use malloc or calloc to obtain system memory.
// (Probably works for UNIX, and win32.)
// -DNO_DEBUG removes GC_dump and the debugging routines it calls.
// Reduces code size slightly at the expense of debuggability.
boehm-gc/Mac_files/dataend.c deleted 100644 → 0
/*
dataend.c
A hack to get the extent of global data for the Macintosh.
by Patrick C. Beard.
*/
long __dataend;
boehm-gc/Mac_files/datastart.c deleted 100644 → 0
/*
datastart.c
A hack to get the extent of global data for the Macintosh.
by Patrick C. Beard.
*/
long __datastart;
boehm-gc/Makefile.DLLs deleted 100644 → 0
#-----------------------------------------------------------------------------#
# Makefile.DLLs, version 0.4.
# Contributed by Fergus Henderson.
# This Makefile contains rules for creating DLLs on Windows using gnu-win32.
#-----------------------------------------------------------------------------#
# This rule creates a `.def' file, which lists the symbols that are exported
# from the DLL. We use `nm' to get a list of all the exported text (`T')
# symbols and data symbols -- including uninitialized data (`B'),
# initialized data (`D'), read-only data (`R'), and common blocks (`C').
%.def: %.a
echo EXPORTS > $@
nm $< | grep '^........ [BCDRT] _' | sed 's/[^_]*_//' >> $@
# We need to use macros to access global data:
# the user of the DLL must refer to `foo' as `(*__imp_foo)'.
# This rule creates a `_globals.h' file, which contains macros
# for doing this.
SYM_PREFIX = $(firstword $(SYM_PREFIX-$*) $*)
DLL_MACRO = $(SYM_PREFIX)_USE_DLL
IMP_MACRO = $(SYM_PREFIX)_IMP
GLOBAL_MACRO = $(SYM_PREFIX)_GLOBAL
%_globals.h: %.a
echo "/* automatically generated by Makefile.DLLs */" > $@
echo "#if defined(__GNUC__) && defined(_WIN32) \\" >> $@
echo " && defined($(DLL_MACRO))" >> $@
echo "# define $(IMP_MACRO)(name) __imp_##name" >> $@
echo "# define $(GLOBAL_MACRO)(name) (*$(IMP_MACRO)(name))" >> $@
echo "#else" >> $@
echo "# define $(GLOBAL_MACRO)(name) name" >> $@
echo "#endif" >> $@
echo "" >> $@
for sym in `nm $< | grep '^........ [BCDR] _' | sed 's/[^_]*_//'`; do \
echo "#define $$sym $(GLOBAL_MACRO)($$sym)" >> $@; \
done
# This rule creates the export object file (`foo.exp') which contains the
# jump table array; this export object file becomes part of the DLL.
# This rule also creates the import library (`foo_dll.a') which contains small
# stubs for all the functions exported by the DLL which jump to them via the
# jump table. Executables that will use the DLL must be linked against this
# stub library.
%.exp %_dll.a : %.def
dlltool $(DLLTOOLFLAGS) $(DLLTOOLFLAGS-$*) \
--def $< \
--dllname $*.dll \
--output-exp $*.exp \
--output-lib $*_dll.a
# The `sed' commands below are to convert DOS-style `C:\foo\bar'
# pathnames into Unix-style `//c/foo/bar' pathnames.
CYGWIN32_LIBS = $(shell echo \
-L`dirname \`gcc -print-file-name=libgcc.a | \
sed -e 's@^\\\\([A-Za-z]\\\\):@//\\\\1@g' -e 's@\\\\\\\\@/@g' \` ` \
-L`dirname \`gcc -print-file-name=libcygwin.a | \
sed -e 's@^\\\\([A-Za-z]\\\\):@//\\\\1@g' -e 's@\\\\\\\\@/@g' \` ` \
-L`dirname \`gcc -print-file-name=libkernel32.a | \
sed -e 's@^\\\\([A-Za-z]\\\\):@//\\\\1@g' -e 's@\\\\\\\\@/@g' \` ` \
-lgcc -lcygwin -lkernel32 -lgcc)
RELOCATABLE=yes
ifeq "$(strip $(RELOCATABLE))" "yes"
# to create relocatable DLLs, we need to do two passes
%.dll: %.exp %.a dll_fixup.o dll_init.o
$(LD) $(LDFLAGS) $(LDFLAGS-$*) --dll -o $*.base \
-e _dll_entry@12 dll_init.o \
dll_fixup.o $*.exp $*.a \
$(LDLIBS) $(LDLIBS-$*) \
$(CYGWIN32_LIBS)
$(LD) $(LDFLAGS) $(LDFLAGS-$*) --dll --base-file $*.base -o $@ \
-e _dll_entry@12 dll_init.o \
dll_fixup.o $*.exp $*.a \
$(LDLIBS) $(LDLIBS-$*) \
$(CYGWIN32_LIBS)
rm -f $*.base
else
%.dll: %.exp %.a dll_fixup.o dll_init.o
$(LD) $(LDFLAGS) $(LDFLAGS-$*) --dll -o $@ \
-e _dll_entry@12 dll_init.o \
dll_fixup.o $*.exp $*.a \
$(LDLIBS) $(LDLIBS-$*) \
$(CYGWIN32_LIBS)
endif
# This black magic piece of assembler needs to be linked in in order to
# properly terminate the list of imported DLLs.
dll_fixup.s:
echo '.section .idata$$3' > dll_fixup.s
echo '.long 0,0,0,0, 0,0,0,0' >> dll_fixup.s
# This bit is necessary to provide an initialization function for the DLL.
dll_init.c:
echo '__attribute__((stdcall))' > dll_init.c
echo 'int dll_entry(int handle, int reason, void *ptr)' >> dll_init.c
echo '{return 1; }' >> dll_init.c
dont_throw_away: dll_fixup.o dll_init.o
boehm-gc/Makefile.am deleted 100644 → 0
## Process this file with automake to produce Makefile.in.
## FIXME: `make dist' in this directory will not currently work. Many
## files that should be in the distribution are not mentioned in this
## Makefile.am.
AUTOMAKE_OPTIONS = foreign subdir-objects no-dist
ACLOCAL_AMFLAGS = -I .. -I ../config
SUBDIRS = include testsuite
noinst_LTLIBRARIES = libgcjgc.la libgcjgc_convenience.la
if POWERPC_DARWIN
asm_libgcjgc_sources = powerpc_darwin_mach_dep.s
else
asm_libgcjgc_sources =
endif
libgcjgc_la_SOURCES = allchblk.c alloc.c blacklst.c checksums.c dbg_mlc.c \
dyn_load.c finalize.c gc_dlopen.c gcj_mlc.c headers.c \
malloc.c mallocx.c mark.c mark_rts.c misc.c new_hblk.c \
obj_map.c os_dep.c pcr_interface.c ptr_chck.c real_malloc.c reclaim.c \
specific.c stubborn.c typd_mlc.c \
backgraph.c win32_threads.c \
pthread_support.c pthread_stop_world.c darwin_stop_world.c \
$(asm_libgcjgc_sources)
libgcjgc_convenience_la_SOURCES = $(libgcjgc_la_SOURCES)
EXTRA_DIST = alpha_mach_dep.S \
mips_sgi_mach_dep.s mips_ultrix_mach_dep.s powerpc_darwin_mach_dep.s \
rs6000_mach_dep.s sparc_mach_dep.S sparc_netbsd_mach_dep.s \
sparc_sunos4_mach_dep.s ia64_save_regs_in_stack.s
# Include THREADLIBS here to ensure that the correct versions of
# linuxthread semaphore functions get linked:
libgcjgc_la_LIBADD = $(addobjs) $(THREADLIBS) $(EXTRA_TEST_LIBS)
libgcjgc_la_DEPENDENCIES = $(addobjs)
libgcjgc_la_LDFLAGS = $(extra_ldflags_libgc) -version-info 1:2:0 -rpath $(toolexeclibdir)
libgcjgc_la_LINK = $(LINK) $(libgcjgc_la_LDFLAGS)
libgcjgc_convenience_la_LIBADD = $(addobjs)
libgcjgc_convenience_la_DEPENDENCIES = $(addobjs)
AM_CXXFLAGS = $(GC_CFLAGS) $(THREADCFLAGS)
AM_CFLAGS = $(GC_CFLAGS) $(THREADCFLAGS)
AM_LDFLAGS = $(shell $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
override CFLAGS := $(filter-out $(O0_CFLAGS), $(CFLAGS)) $(O0_CFLAGS)
## FIXME: we shouldn't have to do this, but automake forces us to.
.s.lo:
## We use -Wp,-P to strip #line directives. Irix `as' chokes on
## these.
$(LTCOMPILE) -Wp,-P -x assembler-with-cpp -c $<
.S.lo:
$(LTCOMPILE) -Wp,-P -x assembler-with-cpp -c $<
# Work around what appears to be a GNU make bug handling MAKEFLAGS
# values defined in terms of make variables, as is the case for CC and
# friends when we are called from the top level Makefile.
AM_MAKEFLAGS = \
"AR_FLAGS=$(AR_FLAGS)" \
"CC_FOR_BUILD=$(CC_FOR_BUILD)" \
"CFLAGS=$(CFLAGS)" \
"CXXFLAGS=$(CXXFLAGS)" \
"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
"INSTALL=$(INSTALL)" \
"INSTALL_DATA=$(INSTALL_DATA)" \
"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \
"INSTALL_SCRIPT=$(INSTALL_SCRIPT)" \
"LDFLAGS=$(LDFLAGS)" \
"LIBCFLAGS=$(LIBCFLAGS)" \
"LIBCFLAGS_FOR_TARGET=$(LIBCFLAGS_FOR_TARGET)" \
"MAKE=$(MAKE)" \
"MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)" \
"PICFLAG=$(PICFLAG)" \
"PICFLAG_FOR_TARGET=$(PICFLAG_FOR_TARGET)" \
"SHELL=$(SHELL)" \
"EXPECT=$(EXPECT)" \
"RUNTEST=$(RUNTEST)" \
"RUNTESTFLAGS=$(RUNTESTFLAGS)" \
"exec_prefix=$(exec_prefix)" \
"infodir=$(infodir)" \
"libdir=$(libdir)" \
"prefix=$(prefix)" \
"tooldir=$(tooldir)" \
"AR=$(AR)" \
"AS=$(AS)" \
"CC=$(CC)" \
"CXX=$(CXX)" \
"LD=$(LD)" \
"LIBCFLAGS=$(LIBCFLAGS)" \
"NM=$(NM)" \
"PICFLAG=$(PICFLAG)" \
"RANLIB=$(RANLIB)" \
"DESTDIR=$(DESTDIR)"
CONFIG_STATUS_DEPENDENCIES = $(srcdir)/configure.host
MAKEOVERRIDES=
boehm-gc/NT_MAKEFILE deleted 100644 → 0
# Makefile for Windows NT. Assumes Microsoft compiler, and a single thread.
# DLLs are included in the root set under NT, but not under win32S.
# Use "nmake nodebug=1 all" for optimized versions of library, gctest and editor.
MY_CPU=X86
CPU=$(MY_CPU)
!include <ntwin32.mak>
OBJS= alloc.obj reclaim.obj allchblk.obj misc.obj mach_dep.obj os_dep.obj mark_rts.obj headers.obj mark.obj obj_map.obj blacklst.obj finalize.obj new_hblk.obj dbg_mlc.obj malloc.obj stubborn.obj dyn_load.obj typd_mlc.obj ptr_chck.obj gc_cpp.obj mallocx.obj
all: gctest.exe cord\de.exe test_cpp.exe
.c.obj:
$(cc) $(cdebug) $(cflags) $(cvars) -Iinclude -DSILENT -DALL_INTERIOR_POINTERS -D__STDC__ -DGC_NOT_DLL -DGC_BUILD $*.c /Fo$*.obj
.cpp.obj:
$(cc) $(cdebug) $(cflags) $(cvars) -Iinclude -DSILENT -DALL_INTERIOR_POINTERS -DGC_NOT_DLL -DGC_BUILD $*.CPP /Fo$*.obj
$(OBJS) tests\test.obj: include\private\gc_priv.h include\private\gc_hdrs.h include\gc.h include\private\gcconfig.h include\private\gc_locks.h include\private\gc_pmark.h include\gc_mark.h
gc.lib: $(OBJS)
lib /MACHINE:i386 /out:gc.lib $(OBJS)
# The original NT SDK used lib32 instead of lib
gctest.exe: tests\test.obj gc.lib
# The following works for win32 debugging. For win32s debugging use debugtype:coff
# and add mapsympe line.
# This produces a "GUI" applications that opens no windows and writes to the log file
# "gc.log". This is done to make the result runnable under win32s.
$(link) -debug:full -debugtype:cv $(guiflags) -stack:131072 -out:$*.exe tests\test.obj $(guilibs) gc.lib
# mapsympe -n -o gctest.sym gctest.exe
cord\de_win.rbj: cord\de_win.res
cvtres /MACHINE:$(MY_CPU) /OUT:cord\de_win.rbj cord\de_win.res
cord\de.obj cord\de_win.obj: include\cord.h include\private\cord_pos.h cord\de_win.h cord\de_cmds.h
cord\de_win.res: cord\de_win.rc cord\de_win.h cord\de_cmds.h
$(rc) $(rcvars) -r -fo cord\de_win.res $(cvars) cord\de_win.rc
# Cord/de is a real win32 gui application.
cord\de.exe: cord\cordbscs.obj cord\cordxtra.obj cord\de.obj cord\de_win.obj cord\de_win.rbj gc.lib
$(link) -debug:full -debugtype:cv $(guiflags) -stack:16384 -out:cord\de.exe cord\cordbscs.obj cord\cordxtra.obj cord\de.obj cord\de_win.obj cord\de_win.rbj gc.lib $(guilibs)
gc_cpp.obj: include\gc_cpp.h include\gc.h
gc_cpp.cpp: gc_cpp.cc
copy gc_cpp.cc gc_cpp.cpp
test_cpp.cpp: tests\test_cpp.cc
copy tests\test_cpp.cc test_cpp.cpp
# This generates the C++ test executable. The executable expects
# a single numeric argument, which is the number of iterations.
# The output appears in the file "gc.log".
test_cpp.exe: test_cpp.obj include\gc_cpp.h include\gc.h gc.lib
$(link) -debug:full -debugtype:cv $(guiflags) -stack:16384 -out:test_cpp.exe test_cpp.obj gc.lib $(guilibs)
boehm-gc/NT_STATIC_THREADS_MAKEFILE deleted 100644 → 0
# Makefile for Windows NT. Assumes Microsoft compiler.
# DLLs are included in the root set under NT, but not under win32S.
# Use "nmake nodebug=1 all" for optimized versions of library, gctest and editor.
MY_CPU=X86
CPU=$(MY_CPU)
!include <ntwin32.mak>
OBJS= alloc.obj reclaim.obj allchblk.obj misc.obj mach_dep.obj os_dep.obj mark_rts.obj headers.obj mark.obj obj_map.obj blacklst.obj finalize.obj new_hblk.obj dbg_mlc.obj malloc.obj stubborn.obj dyn_load.obj typd_mlc.obj ptr_chck.obj gc_cpp.obj mallocx.obj win32_threads.obj
all: gctest.exe cord\de.exe test_cpp.exe
.c.obj:
$(cc) $(cdebug) $(cflags) $(cvars) -Iinclude -DSILENT -DALL_INTERIOR_POINTERS -D__STDC__ -DGC_NOT_DLL -DGC_WIN32_THREADS $*.c /Fo$*.obj
.cpp.obj:
$(cc) $(cdebug) $(cflags) $(cvars) -Iinclude -DSILENT -DALL_INTERIOR_POINTERS -DGC_NOT_DLL $*.CPP -DGC_WIN32_THREADS /Fo$*.obj
$(OBJS) tests\test.obj: include\private\gc_priv.h include\private\gc_hdrs.h include\gc.h include\private\gcconfig.h include\private\gc_locks.h include\private\gc_pmark.h include\gc_mark.h
gc.lib: $(OBJS)
lib /MACHINE:i386 /out:gc.lib $(OBJS)
# The original NT SDK used lib32 instead of lib
gctest.exe: tests\test.obj gc.lib
# The following works for win32 debugging. For win32s debugging use debugtype:coff
# and add mapsympe line.
# This produces a "GUI" applications that opens no windows and writes to the log file
# "gc.log". This is done to make the result runnable under win32s.
$(link) -debug:full -debugtype:cv $(guiflags) -stack:131072 -out:$*.exe tests\test.obj $(guilibs) gc.lib
# mapsympe -n -o gctest.sym gctest.exe
cord\de_win.rbj: cord\de_win.res
cvtres /MACHINE:$(MY_CPU) /OUT:cord\de_win.rbj cord\de_win.res
cord\de.obj cord\de_win.obj: include\cord.h include\private\cord_pos.h cord\de_win.h cord\de_cmds.h
cord\de_win.res: cord\de_win.rc cord\de_win.h cord\de_cmds.h
$(rc) $(rcvars) -r -fo cord\de_win.res $(cvars) cord\de_win.rc
# Cord/de is a real win32 gui application.
cord\de.exe: cord\cordbscs.obj cord\cordxtra.obj cord\de.obj cord\de_win.obj cord\de_win.rbj gc.lib
$(link) -debug:full -debugtype:cv $(guiflags) -stack:16384 -out:cord\de.exe cord\cordbscs.obj cord\cordxtra.obj cord\de.obj cord\de_win.obj cord\de_win.rbj gc.lib $(guilibs)
gc_cpp.obj: include\gc_cpp.h include\gc.h
gc_cpp.cpp: gc_cpp.cc
copy gc_cpp.cc gc_cpp.cpp
test_cpp.cpp: tests\test_cpp.cc
copy tests\test_cpp.cc test_cpp.cpp
# This generates the C++ test executable. The executable expects
# a single numeric argument, which is the number of iterations.
# The output appears in the file "gc.log".
test_cpp.exe: test_cpp.obj include\gc_cpp.h include\gc.h gc.lib
$(link) -debug:full -debugtype:cv $(guiflags) -stack:16384 -out:test_cpp.exe test_cpp.obj gc.lib $(guilibs)
boehm-gc/OS2_MAKEFILE deleted 100644 → 0
# Makefile for OS/2. Assumes IBM's compiler, static linking, and a single thread.
# Adding dynamic linking support seems easy, but takes a little bit of work.
# Adding thread support may be nontrivial, since we haven't yet figured out how to
# look at another thread's registers.
# Significantly revised for GC version 4.4 by Mark Boulter (Jan 1994).
OBJS= alloc.obj reclaim.obj allchblk.obj misc.obj mach_dep.obj os_dep.obj mark_rts.obj headers.obj mark.obj obj_map.obj blacklst.obj finalize.obj new_hblk.obj dbg_mlc.obj malloc.obj stubborn.obj typd_mlc.obj ptr_chck.obj mallocx.obj
CORDOBJS= cord\cordbscs.obj cord\cordxtra.obj cord\cordprnt.obj
CC= icc
CFLAGS= /O /Q /DSILENT /DSMALL_CONFIG /DALL_INTERIOR_POINTERS
# Use /Ti instead of /O for debugging
# Setjmp_test may yield overly optimistic results when compiled
# without optimization.
all: $(OBJS) gctest.exe cord\cordtest.exe
$(OBJS) test.obj: include\private\gc_priv.h include\private\gc_hdrs.h include\gc.h include\private\gcconfig.h
## ERASE THE LIB FIRST - if it is already there then this command will fail
## (make sure its there or erase will fail!)
gc.lib: $(OBJS)
echo . > gc.lib
erase gc.lib
LIB gc.lib $(OBJS), gc.lst
mach_dep.obj: mach_dep.c
$(CC) $(CFLAGS) /C mach_dep.c
gctest.exe: test.obj gc.lib
$(CC) $(CFLAGS) /B"/STACK:524288" /Fegctest test.obj gc.lib
cord\cordbscs.obj: cord\cordbscs.c include\cord.h include\private\cord_pos.h
$(CC) $(CFLAGS) /C /Focord\cordbscs cord\cordbscs.c
cord\cordxtra.obj: cord\cordxtra.c include\cord.h include\private\cord_pos.h include\ec.h
$(CC) $(CFLAGS) /C /Focord\cordxtra cord\cordxtra.c
cord\cordprnt.obj: cord\cordprnt.c include\cord.h include\private\cord_pos.h include\ec.h
$(CC) $(CFLAGS) /C /Focord\cordprnt cord\cordprnt.c
cord\cordtest.exe: cord\cordtest.c include\cord.h include\private\cord_pos.h include\ec.h $(CORDOBJS) gc.lib
$(CC) $(CFLAGS) /B"/STACK:65536" /Fecord\cordtest cord\cordtest.c gc.lib $(CORDOBJS)
boehm-gc/PCR-Makefile deleted 100644 → 0
#
# Default target
#
default: gc.o
include ../config/common.mk
#
# compilation flags, etc.
#
CPPFLAGS = $(INCLUDE) $(CONFIG_CPPFLAGS) \
-DPCR_NO_RENAME -DPCR_NO_HOSTDEP_ERR
#CFLAGS = -DPCR -DSILENT $(CONFIG_CFLAGS)
CFLAGS = -DPCR $(CONFIG_CFLAGS)
SPECIALCFLAGS = # For code involving asm's
ASPPFLAGS = $(INCLUDE) $(CONFIG_ASPPFLAGS) \
-DPCR_NO_RENAME -DPCR_NO_HOSTDEP_ERR -DASM
ASFLAGS = $(CONFIG_ASFLAGS)
LDRFLAGS = $(CONFIG_LDRFLAGS)
LDFLAGS = $(CONFIG_LDFLAGS)
#
#
#
#
# BEGIN PACKAGE-SPECIFIC PART
#
#
#
#
# Fix to point to local pcr installation directory.
PCRDIR= ..
COBJ= alloc.o reclaim.o allchblk.o misc.o os_dep.o mark_rts.o headers.o mark.o obj_map.o pcr_interface.o blacklst.o finalize.o new_hblk.o real_malloc.o dyn_load.o dbg_mlc.o malloc.o stubborn.o checksums.o solaris_threads.o typd_mlc.o ptr_chck.o mallocx.o
CSRC= reclaim.c allchblk.c misc.c alloc.c mach_dep.c os_dep.c mark_rts.c headers.c mark.c obj_map.c pcr_interface.c blacklst.c finalize.c new_hblk.c real_malloc.c dyn_load.c dbg_mlc.c malloc.c stubborn.c checksums.c solaris_threads.c typd_mlc.c ptr_chck.c mallocx.c
SHELL= /bin/sh
default: gc.o
gc.o: $(COBJ) mach_dep.o
$(LDR) $(CONFIG_LDRFLAGS) -o gc.o $(COBJ) mach_dep.o
mach_dep.o: mach_dep.c mips_mach_dep.s rs6000_mach_dep.s if_mach if_not_there
rm -f mach_dep.o
./if_mach MIPS "" as -o mach_dep.o mips_mach_dep.s
./if_mach RS6000 "" as -o mach_dep.o rs6000_mach_dep.s
./if_mach ALPHA "" as -o mach_dep.o alpha_mach_dep.s
./if_mach SPARC SUNOS5 as -o mach_dep.o sparc_mach_dep.s
./if_not_there mach_dep.o $(CC) -c $(SPECIALCFLAGS) mach_dep.c
if_mach: if_mach.c gcconfig.h
$(CC) $(CFLAGS) -o if_mach if_mach.c
if_not_there: if_not_there.c
$(CC) $(CFLAGS) -o if_not_there if_not_there.c
boehm-gc/SMakefile.amiga deleted 100644 → 0
# Rewritten smakefile for amiga / sas/c. -Kjetil M.
# Dont use the cord-package if you define parm=both or parm=reg.
#----------------TOOLS--------------------------------
CC=sc
LINKER=slink
LIBER=oml
#----------------CPU OPTIONS--------------------------
CPU=68060
#----------------FPU OPTIONS--------------------------
MATH=8
MATHLIB=LIB:scm881.lib
#----------------COMPILER OPTIONS---------------------
IGNORE= IGNORE=85 IGNORE=154 IGNORE=161 IGNORE=100
OPTIMIZE=optimize optimizetime optglobal optimizerdepth=100 optimizerpeephole optloop OPTSCHED optimizerinlocal optimizerrecurdepth=100
# optimizerinline optimizercomplexity=100
OPT= $(OPTIMIZE) CPU=$(CPU) math=$(MATH) NOSTACKCHECK VERBOSE \
MAPHUNK NOVERSION NOICONS nodebug \
DEFINE SILENT \
parm=reg \
DEFINE __USE_SYSBASE
SOPT= $(OPT) $(IGNORE) \
DEFINE AMIGA_SKIP_SEG \
DEFINE ATOMIC_UNCOLLECTABLE \
DEFINE GC_AMIGA_FASTALLOC \
DEFINE GC_AMIGA_RETRY \
DEFINE GC_AMIGA_PRINTSTATS \
DEFINE GC_AMIGA_GC
#DEFINE ALL_INTERIOR_POINTERS \
SCOPT= $(SOPT) define GC_AMIGA_MAKINGLIB
CSCOPT= $(OPT) DEFINE AMIGA IGNORE=100 IGNORE=161
#------------------LINKING----------------------------
all: gctest setjmp_t cord/cordtest
clean:
delete *.lib gctest setjmp_t *.o *.lnk cord/*.o cord/*.lib cord/*.lnk cord/cordtest
smake
test: setjmp_t gctest cord/cordtest
setjmp_t
gctest
cord/cordtest
gctest: gc$(CPU).lib GCAmigaOS$(CPU).lib test.o
$(LINKER) LIB:c.o test.o TO gctest LIB gc$(CPU).lib LIB:sc.lib $(MATHLIB)
setjmp_t: setjmp_t.o gc.h
$(LINKER) LIB:c.o setjmp_t.o to setjmp_t lib LIB:sc.lib
cord/cordtest: cord/cordtest.o cord/cord$(CPU).lib gc$(CPU).lib
slink LIB:c.o cord/cordtest.o LIB $(MATHLIB) gc$(CPU).lib cord/cord$(CPU).lib LIB:sc.lib TO cord/cordtest
#------------------LIBBING----------------------------
OBJS= alloc.o reclaim.o allchblk.o misc.o mach_dep.o os_dep.o mark_rts.o headers.o mark.o obj_map.o blacklst.o finalize.o new_hblk.o real_malloc.o dyn_load.o dbg_mlc.o malloc.o stubborn.o checksums.o typd_mlc.o ptr_chck.o mallocx.o
gc$(CPU).lib: $(OBJS)
$(LIBER) gc$(CPU).lib r $(OBJS)
COBJS = cord/cordbscs.o cord/cordprnt.o cord/cordxtra.o
cord/cord$(CPU).lib: $(COBJS)
oml cord/cord$(CPU).lib r $(COBJS)
#------------------COMPILING--------------------------
INC= gc_private.h gc_hdrs.h gc.h gcconfig.h
alloc.o : alloc.c $(INC)
$(CC) alloc.c $(SCOPT) ignore=7
reclaim.o : reclaim.c $(INC)
$(CC) reclaim.c $(SCOPT)
allchblk.o : allchblk.c $(INC)
$(CC) allchblk.c $(SCOPT)
misc.o : misc.c $(INC)
$(CC) misc.c $(SCOPT)
os_dep.o : os_dep.c $(INC) AmigaOS.c
$(CC) os_dep.c $(SCOPT)
mark_rts.o : mark_rts.c $(INC)
$(CC) mark_rts.c $(SCOPT)
headers.o : headers.c $(INC)
$(CC) headers.c $(SCOPT)
mark.o : mark.c $(INC)
$(CC) mark.c $(SCOPT)
obj_map.o : obj_map.c $(INC)
$(CC) obj_map.c $(SCOPT)
blacklst.o : blacklst.c $(INC)
$(CC) blacklst.c $(SCOPT)
finalize.o : finalize.c $(INC)
$(CC) finalize.c $(SCOPT) noopt #Could sas/c still have problems with this one? Gctest sometimes fails to finalize all.
new_hblk.o : new_hblk.c $(INC)
$(CC) new_hblk.c $(SCOPT)
real_malloc.o : real_malloc.c $(INC)
$(CC) real_malloc.c $(SCOPT)
dyn_load.o : dyn_load.c $(INC)
$(CC) dyn_load.c $(SCOPT)
dbg_mlc.o : dbg_mlc.c $(INC)
$(CC) dbg_mlc.c $(SCOPT)
malloc.o : malloc.c $(INC)
$(CC) malloc.c $(SCOPT)
mallocx.o : mallocx.c $(INC)
$(CC) mallocx.c $(SCOPT)
stubborn.o : stubborn.c $(INC)
$(CC) stubborn.c $(SCOPT)
checksums.o : checksums.c $(INC)
$(CC) checksums.c $(SCOPT)
typd_mlc.o: typd_mlc.c $(INC)
$(CC) typd_mlc.c $(SCOPT)
mach_dep.o : mach_dep.c $(INC)
$(CC) mach_dep.c $(SCOPT)
ptr_chck.o: ptr_chck.c $(INC)
$(CC) ptr_chck.c $(SCOPT)
test.o : test.c $(INC)
$(CC) test.c $(SOPT)
setjmp_t: setjmp_t.c gc.h
$(CC) setjmp_t.c $(SOPT)
# cords:
cord/cordbscs.o: cord/cordbscs.c
sc cord/cordbscs.c $(CSCOPT)
cord/cordprnt.o: cord/cordprnt.c
sc cord/cordprnt.c $(CSCOPT)
cord/cordxtra.o: cord/cordxtra.c
sc cord/cordxtra.c $(CSCOPT)
cord/cordtest.o: cord/cordtest.c
sc cord/cordtest.c $(CSCOPT)
boehm-gc/WCC_MAKEFILE deleted 100644 → 0
# Makefile for Watcom C/C++ 10.5, 10.6, 11.0 on NT, OS2 and DOS4GW.
# May work with Watcom 10.0.
# Uncoment one of the lines below for cross compilation.
SYSTEM=MSWIN32
#SYSTEM=DOS4GW
#SYSTEM=OS2
# The collector can be built either as dynamic or as static library.
# Select the library type you need.
#MAKE_AS_DLL=1
MAKE_AS_LIB=1
# Select calling conventions.
# Possible choices are r and s.
CALLING=s
# Select target CPU.
# Possible choices are 3, 4, 5, and 6.
# The last choice available only since version 11.0.
CPU=5
# Set optimization options.
# Watcom before 11.0 does not support option "-oh".
OPTIM=-oneatx -s
#OPTIM=-ohneatx -s
DEFS=-DALL_INTERIOR_POINTERS -DSILENT -DNO_SIGNALS #-DSMALL_CONFIG #-DGC_DEBUG
#####
!ifndef SYSTEM
!ifdef __MSDOS__
SYSTEM=DOS4GW
!else ifdef __NT__
SYSTEM=MSWIN32
!else ifdef __OS2__
SYSTEM=OS2
!else
SYSTEM=Unknown
!endif
!endif
!define $(SYSTEM)
!ifdef DOS4GW
SYSFLAG=-DDOS4GW -bt=dos
!else ifdef MSWIN32
SYSFLAG=-DMSWIN32 -bt=nt
!else ifdef OS2
SYSFLAG=-DOS2 -bt=os2
!else
!error undefined or unsupported target platform: $(SYSTEM)
!endif
!ifdef MAKE_AS_DLL
DLLFLAG=-bd -DGC_DLL
TEST_DLLFLAG=-DGC_DLL
!else ifdef MAKE_AS_LIB
DLLFLAG=
TEST_DLLFLAG=
!else
!error Either MAKE_AS_LIB or MAKE_AS_DLL should be defined
!endif
CC=wcc386
CXX=wpp386
# -DUSE_GENERIC is required !
CFLAGS=-$(CPU)$(CALLING) $(OPTIM) -zp4 -zc $(SYSFLAG) $(DLLFLAG) -DGC_BUILD -DUSE_GENERIC $(DEFS)
CXXFLAGS= $(CFLAGS)
TEST_CFLAGS=-$(CPU)$(CALLING) $(OPTIM) -zp4 -zc $(SYSFLAG) $(TEST_DLLFLAG) $(DEFS)
TEST_CXXFLAGS= $(TEST_CFLAGS)
OBJS= alloc.obj reclaim.obj allchblk.obj misc.obj &
mach_dep.obj os_dep.obj mark_rts.obj headers.obj mark.obj &
obj_map.obj blacklst.obj finalize.obj new_hblk.obj &
dbg_mlc.obj malloc.obj stubborn.obj dyn_load.obj &
typd_mlc.obj ptr_chck.obj mallocx.obj
all: gc.lib gctest.exe test_cpp.exe
!ifdef MAKE_AS_DLL
gc.lib: gc.dll gc_cpp.obj
*wlib -b -c -n -p=512 $@ +gc.dll +gc_cpp.obj
gc.dll: $(OBJS) .AUTODEPEND
@%create $*.lnk
!ifdef DOS4GW
@%append $*.lnk sys os2v2_dll
!else ifdef MSWIN32
@%append $*.lnk sys nt_dll
!else ifdef OS2
@%append $*.lnk sys os2v2_dll
!endif
@%append $*.lnk name $*
@for %i in ($(OBJS)) do @%append $*.lnk file '%i'
!ifeq CALLING s
@%append $*.lnk export GC_is_marked
@%append $*.lnk export GC_incr_words_allocd
@%append $*.lnk export GC_incr_mem_freed
@%append $*.lnk export GC_generic_malloc_words_small
!else
@%append $*.lnk export GC_is_marked_
@%append $*.lnk export GC_incr_words_allocd_
@%append $*.lnk export GC_incr_mem_freed_
@%append $*.lnk export GC_generic_malloc_words_small_
!endif
*wlink @$*.lnk
!else
gc.lib: $(OBJS) gc_cpp.obj
@%create $*.lb1
@for %i in ($(OBJS)) do @%append $*.lb1 +'%i'
@%append $*.lb1 +'gc_cpp.obj'
*wlib -b -c -n -p=512 $@ @$*.lb1
!endif
gctest.exe: test.obj gc.lib
%create $*.lnk
!ifdef DOS4GW
@%append $*.lnk sys dos4g
!else ifdef MSWIN32
@%append $*.lnk sys nt
!else ifdef OS2
@%append $*.lnk sys os2v2
!endif
@%append $*.lnk op case
@%append $*.lnk op stack=256K
@%append $*.lnk name $*
@%append $*.lnk file test.obj
@%append $*.lnk library gc.lib
!ifdef MAKE_AS_DLL
!ifeq CALLING s
@%append $*.lnk import GC_is_marked gc
!else
@%append $*.lnk import GC_is_marked_ gc
!endif
!endif
*wlink @$*.lnk
test_cpp.exe: test_cpp.obj gc.lib
%create $*.lnk
!ifdef DOS4GW
@%append $*.lnk sys dos4g
!else ifdef MSWIN32
@%append $*.lnk sys nt
!else ifdef OS2
@%append $*.lnk sys os2v2
!endif
@%append $*.lnk op case
@%append $*.lnk op stack=256K
@%append $*.lnk name $*
@%append $*.lnk file test_cpp.obj
@%append $*.lnk library gc.lib
!ifdef MAKE_AS_DLL
!ifeq CALLING s
@%append $*.lnk import GC_incr_words_allocd gc
@%append $*.lnk import GC_incr_mem_freed gc
@%append $*.lnk import GC_generic_malloc_words_small gc
!else
@%append $*.lnk import GC_incr_words_allocd_ gc
@%append $*.lnk import GC_incr_mem_freed_ gc
@%append $*.lnk import GC_generic_malloc_words_small_ gc
!endif
!endif
*wlink @$*.lnk
gc_cpp.obj: gc_cpp.cc .AUTODEPEND
$(CXX) $(TEST_CXXFLAGS) -iinclude $*.cc
test.obj: tests\test.c .AUTODEPEND
$(CC) $(TEST_CFLAGS) $*.c
test_cpp.obj: tests\test_cpp.cc .AUTODEPEND
$(CXX) $(TEST_CXXFLAGS) -iinclude $*.cc
.c.obj: .AUTODEPEND
$(CC) $(CFLAGS) $*.c
.cc.obj: .AUTODEPEND
$(CXX) $(CXXFLAGS) $*.cc
clean : .SYMBOLIC
@if exist *.obj del *.obj
@if exist *.map del *.map
@if exist *.lnk del *.lnk
@if exist *.lb1 del *.lb1
@if exist *.sym del *.sym
@if exist *.err del *.err
@if exist *.tmp del *.tmp
@if exist *.lst del *.lst
@if exist *.exe del *.exe
@if exist *.log del *.log
@if exist *.lib del *.lib
@if exist *.dll del *.dll
boehm-gc/add_gc_prefix.c deleted 100644 → 0
# include <stdio.h>
# include "version.h"
int main(argc, argv, envp)
int argc;
char ** argv;
char ** envp;
{
int i;
for (i = 1; i < argc; i++) {
if (GC_ALPHA_VERSION == GC_NOT_ALPHA) {
printf("gc%d.%d/%s ", GC_VERSION_MAJOR, GC_VERSION_MINOR, argv[i]);
} else {
printf("gc%d.%dalpha%d/%s ", GC_VERSION_MAJOR,
GC_VERSION_MINOR, GC_ALPHA_VERSION, argv[i]);
}
}
return(0);
}
boehm-gc/alpha_mach_dep.S deleted 100644 → 0
.arch ev6
.text
.align 4
.globl GC_push_regs
.ent GC_push_regs 2
GC_push_regs:
ldgp $gp, 0($27)
lda $sp, -16($sp)
stq $26, 0($sp)
.mask 0x04000000, 0
.frame $sp, 16, $26, 0
/* $0 integer result */
/* $1-$8 temp regs - not preserved cross calls */
/* $9-$15 call saved regs */
/* $16-$21 argument regs - not preserved cross calls */
/* $22-$28 temp regs - not preserved cross calls */
/* $29 global pointer - not preserved cross calls */
/* $30 stack pointer */
# define call_push(x) \
mov x, $16; \
jsr $26, GC_push_one; \
ldgp $gp, 0($26)
call_push($9)
call_push($10)
call_push($11)
call_push($12)
call_push($13)
call_push($14)
call_push($15)
/* $f0-$f1 floating point results */
/* $f2-$f9 call saved regs */
/* $f10-$f30 temp regs - not preserved cross calls */
/* Use the most efficient transfer method for this hardware. */
/* Bit 1 detects the FIX extension, which includes ftoit. */
amask 2, $0
bne $0, $use_stack
#undef call_push
#define call_push(x) \
ftoit x, $16; \
jsr $26, GC_push_one; \
ldgp $gp, 0($26)
call_push($f2)
call_push($f3)
call_push($f4)
call_push($f5)
call_push($f6)
call_push($f7)
call_push($f8)
call_push($f9)
ldq $26, 0($sp)
lda $sp, 16($sp)
ret $31, ($26), 1
.align 4
$use_stack:
#undef call_push
#define call_push(x) \
stt x, 8($sp); \
ldq $16, 8($sp); \
jsr $26, GC_push_one; \
ldgp $gp, 0($26)
call_push($f2)
call_push($f3)
call_push($f4)
call_push($f5)
call_push($f6)
call_push($f7)
call_push($f8)
call_push($f9)
ldq $26, 0($sp)
lda $sp, 16($sp)
ret $31, ($26), 1
.end GC_push_regs
boehm-gc/blacklst.c deleted 100644 → 0
/*
* Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*/
/* Boehm, August 9, 1995 6:09 pm PDT */
# include "private/gc_priv.h"
/*
* We maintain several hash tables of hblks that have had false hits.
* Each contains one bit per hash bucket; If any page in the bucket
* has had a false hit, we assume that all of them have.
* See the definition of page_hash_table in gc_private.h.
* False hits from the stack(s) are much more dangerous than false hits
* from elsewhere, since the former can pin a large object that spans the
* block, eventhough it does not start on the dangerous block.
*/
/*
* Externally callable routines are:
* GC_add_to_black_list_normal
* GC_add_to_black_list_stack
* GC_promote_black_lists
* GC_is_black_listed
*
* All require that the allocator lock is held.
*/
/* Pointers to individual tables. We replace one table by another by */
/* switching these pointers. */
word * GC_old_normal_bl;
/* Nonstack false references seen at last full */
/* collection. */
word * GC_incomplete_normal_bl;
/* Nonstack false references seen since last */
/* full collection. */
word * GC_old_stack_bl;
word * GC_incomplete_stack_bl;
word GC_total_stack_black_listed;
word GC_black_list_spacing = MINHINCR*HBLKSIZE; /* Initial rough guess */
void GC_clear_bl();
# if defined(__STDC__) || defined(__cplusplus)
void GC_default_print_heap_obj_proc(ptr_t p)
# else
void GC_default_print_heap_obj_proc(p)
ptr_t p;
# endif
{
ptr_t base = GC_base(p);
GC_err_printf2("start: 0x%lx, appr. length: %ld", base, GC_size(base));
}
void (*GC_print_heap_obj) GC_PROTO((ptr_t p)) =
GC_default_print_heap_obj_proc;
void GC_print_source_ptr(p)
ptr_t p;
{
ptr_t base = GC_base(p);
if (0 == base) {
if (0 == p) {
GC_err_printf0("in register");
} else {
GC_err_printf0("in root set");
}
} else {
GC_err_printf0("in object at ");
(*GC_print_heap_obj)(base);
}
}
void GC_bl_init()
{
if (!GC_all_interior_pointers) {
GC_old_normal_bl = (word *)
GC_scratch_alloc((word)(sizeof (page_hash_table)));
GC_incomplete_normal_bl = (word *)GC_scratch_alloc
((word)(sizeof(page_hash_table)));
if (GC_old_normal_bl == 0 || GC_incomplete_normal_bl == 0) {
GC_err_printf0("Insufficient memory for black list\n");
EXIT();
}
GC_clear_bl(GC_old_normal_bl);
GC_clear_bl(GC_incomplete_normal_bl);
}
GC_old_stack_bl = (word *)GC_scratch_alloc((word)(sizeof(page_hash_table)));
GC_incomplete_stack_bl = (word *)GC_scratch_alloc
((word)(sizeof(page_hash_table)));
if (GC_old_stack_bl == 0 || GC_incomplete_stack_bl == 0) {
GC_err_printf0("Insufficient memory for black list\n");
EXIT();
}
GC_clear_bl(GC_old_stack_bl);
GC_clear_bl(GC_incomplete_stack_bl);
}
void GC_clear_bl(doomed)
word *doomed;
{
BZERO(doomed, sizeof(page_hash_table));
}
void GC_copy_bl(old, new)
word *new, *old;
{
BCOPY(old, new, sizeof(page_hash_table));
}
static word total_stack_black_listed();
/* Signal the completion of a collection. Turn the incomplete black */
/* lists into new black lists, etc. */
void GC_promote_black_lists()
{
word * very_old_normal_bl = GC_old_normal_bl;
word * very_old_stack_bl = GC_old_stack_bl;
GC_old_normal_bl = GC_incomplete_normal_bl;
GC_old_stack_bl = GC_incomplete_stack_bl;
if (!GC_all_interior_pointers) {
GC_clear_bl(very_old_normal_bl);
}
GC_clear_bl(very_old_stack_bl);
GC_incomplete_normal_bl = very_old_normal_bl;
GC_incomplete_stack_bl = very_old_stack_bl;
GC_total_stack_black_listed = total_stack_black_listed();
# ifdef PRINTSTATS
GC_printf1("%ld bytes in heap blacklisted for interior pointers\n",
(unsigned long)GC_total_stack_black_listed);
# endif
if (GC_total_stack_black_listed != 0) {
GC_black_list_spacing =
HBLKSIZE*(GC_heapsize/GC_total_stack_black_listed);
}
if (GC_black_list_spacing < 3 * HBLKSIZE) {
GC_black_list_spacing = 3 * HBLKSIZE;
}
if (GC_black_list_spacing > MAXHINCR * HBLKSIZE) {
GC_black_list_spacing = MAXHINCR * HBLKSIZE;
/* Makes it easier to allocate really huge blocks, which otherwise */
/* may have problems with nonuniform blacklist distributions. */
/* This way we should always succeed immediately after growing the */
/* heap. */
}
}
void GC_unpromote_black_lists()
{
if (!GC_all_interior_pointers) {
GC_copy_bl(GC_old_normal_bl, GC_incomplete_normal_bl);
}
GC_copy_bl(GC_old_stack_bl, GC_incomplete_stack_bl);
}
/* P is not a valid pointer reference, but it falls inside */
/* the plausible heap bounds. */
/* Add it to the normal incomplete black list if appropriate. */
#ifdef PRINT_BLACK_LIST
void GC_add_to_black_list_normal(p, source)
ptr_t source;
#else
void GC_add_to_black_list_normal(p)
#endif
word p;
{
if (!(GC_modws_valid_offsets[p & (sizeof(word)-1)])) return;
{
register int index = PHT_HASH(p);
if (HDR(p) == 0 || get_pht_entry_from_index(GC_old_normal_bl, index)) {
# ifdef PRINT_BLACK_LIST
if (!get_pht_entry_from_index(GC_incomplete_normal_bl, index)) {
GC_err_printf2(
"Black listing (normal) 0x%lx referenced from 0x%lx ",
(unsigned long) p, (unsigned long) source);
GC_print_source_ptr(source);
GC_err_puts("\n");
}
# endif
set_pht_entry_from_index(GC_incomplete_normal_bl, index);
} /* else this is probably just an interior pointer to an allocated */
/* object, and isn't worth black listing. */
}
}
/* And the same for false pointers from the stack. */
#ifdef PRINT_BLACK_LIST
void GC_add_to_black_list_stack(p, source)
ptr_t source;
#else
void GC_add_to_black_list_stack(p)
#endif
word p;
{
register int index = PHT_HASH(p);
if (HDR(p) == 0 || get_pht_entry_from_index(GC_old_stack_bl, index)) {
# ifdef PRINT_BLACK_LIST
if (!get_pht_entry_from_index(GC_incomplete_stack_bl, index)) {
GC_err_printf2(
"Black listing (stack) 0x%lx referenced from 0x%lx ",
(unsigned long)p, (unsigned long)source);
GC_print_source_ptr(source);
GC_err_puts("\n");
}
# endif
set_pht_entry_from_index(GC_incomplete_stack_bl, index);
}
}
/*
* Is the block starting at h of size len bytes black listed? If so,
* return the address of the next plausible r such that (r, len) might not
* be black listed. (R may not actually be in the heap. We guarantee only
* that every smaller value of r after h is also black listed.)
* If (h,len) is not black listed, return 0.
* Knows about the structure of the black list hash tables.
*/
struct hblk * GC_is_black_listed(h, len)
struct hblk * h;
word len;
{
register int index = PHT_HASH((word)h);
register word i;
word nblocks = divHBLKSZ(len);
if (!GC_all_interior_pointers) {
if (get_pht_entry_from_index(GC_old_normal_bl, index)
|| get_pht_entry_from_index(GC_incomplete_normal_bl, index)) {
return(h+1);
}
}
for (i = 0; ; ) {
if (GC_old_stack_bl[divWORDSZ(index)] == 0
&& GC_incomplete_stack_bl[divWORDSZ(index)] == 0) {
/* An easy case */
i += WORDSZ - modWORDSZ(index);
} else {
if (get_pht_entry_from_index(GC_old_stack_bl, index)
|| get_pht_entry_from_index(GC_incomplete_stack_bl, index)) {
return(h+i+1);
}
i++;
}
if (i >= nblocks) break;
index = PHT_HASH((word)(h+i));
}
return(0);
}
/* Return the number of blacklisted blocks in a given range. */
/* Used only for statistical purposes. */
/* Looks only at the GC_incomplete_stack_bl. */
word GC_number_stack_black_listed(start, endp1)
struct hblk *start, *endp1;
{
register struct hblk * h;
word result = 0;
for (h = start; h < endp1; h++) {
register int index = PHT_HASH((word)h);
if (get_pht_entry_from_index(GC_old_stack_bl, index)) result++;
}
return(result);
}
/* Return the total number of (stack) black-listed bytes. */
static word total_stack_black_listed()
{
register unsigned i;
word total = 0;
for (i = 0; i < GC_n_heap_sects; i++) {
struct hblk * start = (struct hblk *) GC_heap_sects[i].hs_start;
word len = (word) GC_heap_sects[i].hs_bytes;
struct hblk * endp1 = start + len/HBLKSIZE;
total += GC_number_stack_black_listed(start, endp1);
}
return(total * HBLKSIZE);
}
boehm-gc/callprocs deleted 100755 → 0
#!/bin/sh
GC_DEBUG=1
export GC_DEBUG
$* 2>&1 | awk '{print "0x3e=c\""$0"\""};/^\t##PC##=/ {if ($2 != 0) {print $2"?i"}}' | adb $1 | sed "s/^ >/>/"
boehm-gc/checksums.c deleted 100644 → 0
/*
* Copyright (c) 1992-1994 by Xerox Corporation. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*/
/* Boehm, March 29, 1995 12:51 pm PST */
# ifdef CHECKSUMS
# include "private/gc_priv.h"
/* This is debugging code intended to verify the results of dirty bit */
/* computations. Works only in a single threaded environment. */
/* We assume that stubborn objects are changed only when they are */
/* enabled for writing. (Certain kinds of writing are actually */
/* safe under other conditions.) */
# define NSUMS 10000
# define OFFSET 0x10000
typedef struct {
GC_bool new_valid;
word old_sum;
word new_sum;
struct hblk * block; /* Block to which this refers + OFFSET */
/* to hide it from collector. */
} page_entry;
page_entry GC_sums [NSUMS];
word GC_checksum(h)
struct hblk *h;
{
register word *p = (word *)h;
register word *lim = (word *)(h+1);
register word result = 0;
while (p < lim) {
result += *p++;
}
return(result | 0x80000000 /* doesn't look like pointer */);
}
# ifdef STUBBORN_ALLOC
/* Check whether a stubborn object from the given block appears on */
/* the appropriate free list. */
GC_bool GC_on_free_list(h)
struct hblk *h;
{
register hdr * hhdr = HDR(h);
register int sz = hhdr -> hb_sz;
ptr_t p;
if (sz > MAXOBJSZ) return(FALSE);
for (p = GC_sobjfreelist[sz]; p != 0; p = obj_link(p)) {
if (HBLKPTR(p) == h) return(TRUE);
}
return(FALSE);
}
# endif
int GC_n_dirty_errors;
int GC_n_changed_errors;
int GC_n_clean;
int GC_n_dirty;
void GC_update_check_page(h, index)
struct hblk *h;
int index;
{
page_entry *pe = GC_sums + index;
register hdr * hhdr = HDR(h);
struct hblk *b;
if (pe -> block != 0 && pe -> block != h + OFFSET) ABORT("goofed");
pe -> old_sum = pe -> new_sum;
pe -> new_sum = GC_checksum(h);
# if !defined(MSWIN32) && !defined(MSWINCE)
if (pe -> new_sum != 0x80000000 && !GC_page_was_ever_dirty(h)) {
GC_printf1("GC_page_was_ever_dirty(0x%lx) is wrong\n",
(unsigned long)h);
}
# endif
if (GC_page_was_dirty(h)) {
GC_n_dirty++;
} else {
GC_n_clean++;
}
b = h;
while (IS_FORWARDING_ADDR_OR_NIL(hhdr) && hhdr != 0) {
b -= (word)hhdr;
hhdr = HDR(b);
}
if (pe -> new_valid
&& hhdr != 0 && hhdr -> hb_descr != 0 /* may contain pointers */
&& pe -> old_sum != pe -> new_sum) {
if (!GC_page_was_dirty(h) || !GC_page_was_ever_dirty(h)) {
/* Set breakpoint here */GC_n_dirty_errors++;
}
# ifdef STUBBORN_ALLOC
if ( hhdr -> hb_map != GC_invalid_map
&& hhdr -> hb_obj_kind == STUBBORN
&& !GC_page_was_changed(h)
&& !GC_on_free_list(h)) {
/* if GC_on_free_list(h) then reclaim may have touched it */
/* without any allocations taking place. */
/* Set breakpoint here */GC_n_changed_errors++;
}
# endif
}
pe -> new_valid = TRUE;
pe -> block = h + OFFSET;
}
word GC_bytes_in_used_blocks;
void GC_add_block(h, dummy)
struct hblk *h;
word dummy;
{
register hdr * hhdr = HDR(h);
register bytes = WORDS_TO_BYTES(hhdr -> hb_sz);
bytes += HBLKSIZE-1;
bytes &= ~(HBLKSIZE-1);
GC_bytes_in_used_blocks += bytes;
}
void GC_check_blocks()
{
word bytes_in_free_blocks = GC_large_free_bytes;
GC_bytes_in_used_blocks = 0;
GC_apply_to_all_blocks(GC_add_block, (word)0);
GC_printf2("GC_bytes_in_used_blocks = %ld, bytes_in_free_blocks = %ld ",
GC_bytes_in_used_blocks, bytes_in_free_blocks);
GC_printf1("GC_heapsize = %ld\n", GC_heapsize);
if (GC_bytes_in_used_blocks + bytes_in_free_blocks != GC_heapsize) {
GC_printf0("LOST SOME BLOCKS!!\n");
}
}
/* Should be called immediately after GC_read_dirty and GC_read_changed. */
void GC_check_dirty()
{
register int index;
register unsigned i;
register struct hblk *h;
register ptr_t start;
GC_check_blocks();
GC_n_dirty_errors = 0;
GC_n_changed_errors = 0;
GC_n_clean = 0;
GC_n_dirty = 0;
index = 0;
for (i = 0; i < GC_n_heap_sects; i++) {
start = GC_heap_sects[i].hs_start;
for (h = (struct hblk *)start;
h < (struct hblk *)(start + GC_heap_sects[i].hs_bytes);
h++) {
GC_update_check_page(h, index);
index++;
if (index >= NSUMS) goto out;
}
}
out:
GC_printf2("Checked %lu clean and %lu dirty pages\n",
(unsigned long) GC_n_clean, (unsigned long) GC_n_dirty);
if (GC_n_dirty_errors > 0) {
GC_printf1("Found %lu dirty bit errors\n",
(unsigned long)GC_n_dirty_errors);
}
if (GC_n_changed_errors > 0) {
GC_printf1("Found %lu changed bit errors\n",
(unsigned long)GC_n_changed_errors);
GC_printf0("These may be benign (provoked by nonpointer changes)\n");
# ifdef THREADS
GC_printf0(
"Also expect 1 per thread currently allocating a stubborn obj.\n");
# endif
}
}
# else
extern int GC_quiet;
/* ANSI C doesn't allow translation units to be empty. */
/* So we guarantee this one is nonempty. */
# endif /* CHECKSUMS */
boehm-gc/configure deleted 100755 → 0
This source diff could not be displayed because it is too large. You can view the blob instead.
boehm-gc/configure.host deleted 100644 → 0
# configure.host
# This shell script handles all host based configuration for the garbage
# collector.
# It sets various shell variables based on the the host and the
# configuration options. You can modify this shell script without
# needing to rerun autoconf.
# This shell script should be invoked as
# . configure.host
# If it encounters an error, it will exit with a message.
# It uses the following shell variables:
# host The configuration host
# host_cpu The configuration host CPU
# target_optspace --enable-target-optspace ("yes", "no", "")
# GCC should be "yes" if using gcc
# It sets the following shell variables:
# gc_cflags Special CFLAGS to use when building
# gc_use_mmap Set to "yes" on platforms where mmap should be used instead
# of sbrk. This will define USE_MMAP.
gc_cflags=""
gc_use_mmap=
# We should set -fexceptions if we are using gcc and might be used
# inside something like gcj. This is the zeroth approximation:
if test :"$GCC": = :yes: ; then
gc_cflags="${gc_cflags} -fexceptions"
else
case "$host" in
hppa*-*-hpux* )
if test :$GCC: != :"yes": ; then
gc_cflags="${gc_flags} +ESdbgasm"
fi
# :TODO: actaully we should check using Autoconf if
# the compiler supports this option.
;;
esac
fi
case "${host}" in
*-linux*|*-kfreebsd-gnu*|*-gnu*)
gc_use_mmap=yes
;;
esac
case "${target_optspace}:${host}" in
yes:*)
gc_cflags="${gc_cflags} -Os"
;;
:m32r-* | :d10v-* | :d30v-*)
gc_cflags="${gc_cflags} -Os"
;;
no:* | :*)
# Nothing.
;;
esac
# Set any host dependent compiler flags.
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
case "${host}" in
mips-tx39-*|mipstx39-unknown-*)
gc_cflags="${gc_cflags} -G 0"
;;
*)
;;
esac
boehm-gc/cord/cordtest.c deleted 100644 → 0
/*
* Copyright (c) 1993-1994 by Xerox Corporation. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*/
/* Boehm, August 24, 1994 11:58 am PDT */
# include "gc.h" /* For GC_INIT() only */
# include "cord.h"
# include <string.h>
# include <stdio.h>
# include <stdlib.h>
/* This is a very incomplete test of the cord package. It knows about */
/* a few internals of the package (e.g. when C strings are returned) */
/* that real clients shouldn't rely on. */
# define ABORT(string) \
{ int x = 0; fprintf(stderr, "FAILED: %s\n", string); x = 1 / x; abort(); }
int count;
int test_fn(char c, void * client_data)
{
if (client_data != (void *)13) ABORT("bad client data");
if (count < 64*1024+1) {
if ((count & 1) == 0) {
if (c != 'b') ABORT("bad char");
} else {
if (c != 'a') ABORT("bad char");
}
count++;
return(0);
} else {
if (c != 'c') ABORT("bad char");
count++;
return(1);
}
}
char id_cord_fn(size_t i, void * client_data)
{
return((char)i);
}
void test_basics()
{
CORD x = CORD_from_char_star("ab");
register int i;
char c;
CORD y;
CORD_pos p;
x = CORD_cat(x,x);
if (!CORD_IS_STRING(x)) ABORT("short cord should usually be a string");
if (strcmp(x, "abab") != 0) ABORT("bad CORD_cat result");
for (i = 1; i < 16; i++) {
x = CORD_cat(x,x);
}
x = CORD_cat(x,"c");
if (CORD_len(x) != 128*1024+1) ABORT("bad length");
count = 0;
if (CORD_iter5(x, 64*1024-1, test_fn, CORD_NO_FN, (void *)13) == 0) {
ABORT("CORD_iter5 failed");
}
if (count != 64*1024 + 2) ABORT("CORD_iter5 failed");
count = 0;
CORD_set_pos(p, x, 64*1024-1);
while(CORD_pos_valid(p)) {
(void) test_fn(CORD_pos_fetch(p), (void *)13);
CORD_next(p);
}
if (count != 64*1024 + 2) ABORT("Position based iteration failed");
y = CORD_substr(x, 1023, 5);
if (!CORD_IS_STRING(y)) ABORT("short cord should usually be a string");
if (strcmp(y, "babab") != 0) ABORT("bad CORD_substr result");
y = CORD_substr(x, 1024, 8);
if (!CORD_IS_STRING(y)) ABORT("short cord should usually be a string");
if (strcmp(y, "abababab") != 0) ABORT("bad CORD_substr result");
y = CORD_substr(x, 128*1024-1, 8);
if (!CORD_IS_STRING(y)) ABORT("short cord should usually be a string");
if (strcmp(y, "bc") != 0) ABORT("bad CORD_substr result");
x = CORD_balance(x);
if (CORD_len(x) != 128*1024+1) ABORT("bad length");
count = 0;
if (CORD_iter5(x, 64*1024-1, test_fn, CORD_NO_FN, (void *)13) == 0) {
ABORT("CORD_iter5 failed");
}
if (count != 64*1024 + 2) ABORT("CORD_iter5 failed");
y = CORD_substr(x, 1023, 5);
if (!CORD_IS_STRING(y)) ABORT("short cord should usually be a string");
if (strcmp(y, "babab") != 0) ABORT("bad CORD_substr result");
y = CORD_from_fn(id_cord_fn, 0, 13);
i = 0;
CORD_set_pos(p, y, i);
while(CORD_pos_valid(p)) {
c = CORD_pos_fetch(p);
if(c != i) ABORT("Traversal of function node failed");
CORD_next(p); i++;
}
if (i != 13) ABORT("Bad apparent length for function node");
}
void test_extras()
{
# if defined(__OS2__) || defined(__DJGPP__)
# define FNAME1 "tmp1"
# define FNAME2 "tmp2"
# elif defined(AMIGA)
# define FNAME1 "T:tmp1"
# define FNAME2 "T:tmp2"
# else
# define FNAME1 "/tmp/cord_test"
# define FNAME2 "/tmp/cord_test2"
# endif
register int i;
CORD y = "abcdefghijklmnopqrstuvwxyz0123456789";
CORD x = "{}";
CORD w, z;
FILE *f;
FILE *f1a, *f1b, *f2;
w = CORD_cat(CORD_cat(y,y),y);
z = CORD_catn(3,y,y,y);
if (CORD_cmp(w,z) != 0) ABORT("CORD_catn comparison wrong");
for (i = 1; i < 100; i++) {
x = CORD_cat(x, y);
}
z = CORD_balance(x);
if (CORD_cmp(x,z) != 0) ABORT("balanced string comparison wrong");
if (CORD_cmp(x,CORD_cat(z, CORD_nul(13))) >= 0) ABORT("comparison 2");
if (CORD_cmp(CORD_cat(x, CORD_nul(13)), z) <= 0) ABORT("comparison 3");
if (CORD_cmp(x,CORD_cat(z, "13")) >= 0) ABORT("comparison 4");
if ((f = fopen(FNAME1, "w")) == 0) ABORT("open failed");
if (CORD_put(z,f) == EOF) ABORT("CORD_put failed");
if (fclose(f) == EOF) ABORT("fclose failed");
w = CORD_from_file(f1a = fopen(FNAME1, "rb"));
if (CORD_len(w) != CORD_len(z)) ABORT("file length wrong");
if (CORD_cmp(w,z) != 0) ABORT("file comparison wrong");
if (CORD_cmp(CORD_substr(w, 50*36+2, 36), y) != 0)
ABORT("file substr wrong");
z = CORD_from_file_lazy(f1b = fopen(FNAME1, "rb"));
if (CORD_cmp(w,z) != 0) ABORT("File conversions differ");
if (CORD_chr(w, 0, '9') != 37) ABORT("CORD_chr failed 1");
if (CORD_chr(w, 3, 'a') != 38) ABORT("CORD_chr failed 2");
if (CORD_rchr(w, CORD_len(w) - 1, '}') != 1) ABORT("CORD_rchr failed");
x = y;
for (i = 1; i < 14; i++) {
x = CORD_cat(x,x);
}
if ((f = fopen(FNAME2, "w")) == 0) ABORT("2nd open failed");
# ifdef __DJGPP__
/* FIXME: DJGPP workaround. Why does this help? */
if (fflush(f) != 0) ABORT("fflush failed");
# endif
if (CORD_put(x,f) == EOF) ABORT("CORD_put failed");
if (fclose(f) == EOF) ABORT("fclose failed");
w = CORD_from_file(f2 = fopen(FNAME2, "rb"));
if (CORD_len(w) != CORD_len(x)) ABORT("file length wrong");
if (CORD_cmp(w,x) != 0) ABORT("file comparison wrong");
if (CORD_cmp(CORD_substr(w, 1000*36, 36), y) != 0)
ABORT("file substr wrong");
if (strcmp(CORD_to_char_star(CORD_substr(w, 1000*36, 36)), y) != 0)
ABORT("char * file substr wrong");
if (strcmp(CORD_substr(w, 1000*36, 2), "ab") != 0)
ABORT("short file substr wrong");
if (CORD_str(x,1,"9a") != 35) ABORT("CORD_str failed 1");
if (CORD_str(x,0,"9abcdefghijk") != 35) ABORT("CORD_str failed 2");
if (CORD_str(x,0,"9abcdefghijx") != CORD_NOT_FOUND)
ABORT("CORD_str failed 3");
if (CORD_str(x,0,"9>") != CORD_NOT_FOUND) ABORT("CORD_str failed 4");
if (remove(FNAME1) != 0) {
/* On some systems, e.g. OS2, this may fail if f1 is still open. */
if ((fclose(f1a) == EOF) & (fclose(f1b) == EOF))
ABORT("fclose(f1) failed");
if (remove(FNAME1) != 0) ABORT("remove 1 failed");
}
if (remove(FNAME2) != 0) {
if (fclose(f2) == EOF) ABORT("fclose(f2) failed");
if (remove(FNAME2) != 0) ABORT("remove 2 failed");
}
}
void test_printf()
{
CORD result;
char result2[200];
long l;
short s;
CORD x;
if (CORD_sprintf(&result, "%7.2f%ln", 3.14159F, &l) != 7)
ABORT("CORD_sprintf failed 1");
if (CORD_cmp(result, " 3.14") != 0)ABORT("CORD_sprintf goofed 1");
if (l != 7) ABORT("CORD_sprintf goofed 2");
if (CORD_sprintf(&result, "%-7.2s%hn%c%s", "abcd", &s, 'x', "yz") != 10)
ABORT("CORD_sprintf failed 2");
if (CORD_cmp(result, "ab xyz") != 0)ABORT("CORD_sprintf goofed 3");
if (s != 7) ABORT("CORD_sprintf goofed 4");
x = "abcdefghij";
x = CORD_cat(x,x);
x = CORD_cat(x,x);
x = CORD_cat(x,x);
if (CORD_sprintf(&result, "->%-120.78r!\n", x) != 124)
ABORT("CORD_sprintf failed 3");
(void) sprintf(result2, "->%-120.78s!\n", CORD_to_char_star(x));
if (CORD_cmp(result, result2) != 0)ABORT("CORD_sprintf goofed 5");
}
int main()
{
# ifdef THINK_C
printf("cordtest:\n");
# endif
GC_INIT();
test_basics();
test_extras();
test_printf();
CORD_fprintf(stderr, "SUCCEEDED\n");
return(0);
}
boehm-gc/cord/de_cmds.h deleted 100644 → 0
/*
* Copyright (c) 1994 by Xerox Corporation. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*/
/* Boehm, May 19, 1994 2:24 pm PDT */
#ifndef DE_CMDS_H
# define DE_CMDS_H
# define UP 16 /* ^P */
# define DOWN 14 /* ^N */
# define LEFT 2 /* ^B */
# define RIGHT 6 /* ^F */
# define DEL 127 /* ^? */
# define BS 8 /* ^H */
# define UNDO 21 /* ^U */
# define WRITE 23 /* ^W */
# define QUIT 4 /* ^D */
# define REPEAT 18 /* ^R */
# define LOCATE 12 /* ^L */
# define TOP 20 /* ^T */
#endif
boehm-gc/cord/de_win.RC deleted 100644 → 0
/*
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to copy this garbage collector for any purpose,
* provided the above notices are retained on all copies.
*/
/* Boehm, May 13, 1994 9:50 am PDT */
#include "windows.h"
#include "de_cmds.h"
#include "de_win.h"
ABOUTBOX DIALOG 19, 21, 163, 47
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "About Demonstration Text Editor"
BEGIN
ICON "DE", -1, 8, 8, 13, 13, WS_CHILD | WS_VISIBLE
LTEXT "Demonstration Text Editor", -1, 44, 8, 118, 8, WS_CHILD | WS_VISIBLE | WS_GROUP
LTEXT "Version 4.1", -1, 44, 16, 60, 8, WS_CHILD | WS_VISIBLE | WS_GROUP
PUSHBUTTON "OK", IDOK, 118, 27, 24, 14, WS_CHILD | WS_VISIBLE | WS_TABSTOP
END
DE MENU
BEGIN
POPUP "&File"
BEGIN
MENUITEM "&Save\t^W", IDM_FILESAVE
MENUITEM "E&xit\t^D", IDM_FILEEXIT
END
POPUP "&Edit"
BEGIN
MENUITEM "Page &Down\t^R^N", IDM_EDITPDOWN
MENUITEM "Page &Up\t^R^P", IDM_EDITPUP
MENUITEM "U&ndo\t^U", IDM_EDITUNDO
MENUITEM "&Locate\t^L ... ^L", IDM_EDITLOCATE
MENUITEM "D&own\t^N", IDM_EDITDOWN
MENUITEM "U&p\t^P", IDM_EDITUP
MENUITEM "Le&ft\t^B", IDM_EDITLEFT
MENUITEM "&Right\t^F", IDM_EDITRIGHT
MENUITEM "Delete &Backward\tBS", IDM_EDITBS
MENUITEM "Delete F&orward\tDEL", IDM_EDITDEL
MENUITEM "&Top\t^T", IDM_EDITTOP
END
POPUP "&Help"
BEGIN
MENUITEM "&Contents", IDM_HELPCONTENTS
MENUITEM "&About...", IDM_HELPABOUT
END
MENUITEM "Page_&Down", IDM_EDITPDOWN
MENUITEM "Page_&Up", IDM_EDITPUP
END
DE ACCELERATORS
BEGIN
"^R", IDM_EDITREPEAT
"^N", IDM_EDITDOWN
"^P", IDM_EDITUP
"^L", IDM_EDITLOCATE
"^B", IDM_EDITLEFT
"^F", IDM_EDITRIGHT
"^T", IDM_EDITTOP
VK_DELETE, IDM_EDITDEL, VIRTKEY
VK_BACK, IDM_EDITBS, VIRTKEY
END
DE ICON cord\de_win.ICO
boehm-gc/cord/de_win.h deleted 100644 → 0
/*
* Copyright (c) 1994 by Xerox Corporation. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*/
/* Boehm, May 19, 1994 2:25 pm PDT */
/* cord.h, de_cmds.h, and windows.h should be included before this. */
# define OTHER_FLAG 0x100
# define EDIT_CMD_FLAG 0x200
# define REPEAT_FLAG 0x400
# define CHAR_CMD(i) ((i) & 0xff)
/* MENU: DE */
#define IDM_FILESAVE (EDIT_CMD_FLAG + WRITE)
#define IDM_FILEEXIT (OTHER_FLAG + 1)
#define IDM_HELPABOUT (OTHER_FLAG + 2)
#define IDM_HELPCONTENTS (OTHER_FLAG + 3)
#define IDM_EDITPDOWN (REPEAT_FLAG + EDIT_CMD_FLAG + DOWN)
#define IDM_EDITPUP (REPEAT_FLAG + EDIT_CMD_FLAG + UP)
#define IDM_EDITUNDO (EDIT_CMD_FLAG + UNDO)
#define IDM_EDITLOCATE (EDIT_CMD_FLAG + LOCATE)
#define IDM_EDITDOWN (EDIT_CMD_FLAG + DOWN)
#define IDM_EDITUP (EDIT_CMD_FLAG + UP)
#define IDM_EDITLEFT (EDIT_CMD_FLAG + LEFT)
#define IDM_EDITRIGHT (EDIT_CMD_FLAG + RIGHT)
#define IDM_EDITBS (EDIT_CMD_FLAG + BS)
#define IDM_EDITDEL (EDIT_CMD_FLAG + DEL)
#define IDM_EDITREPEAT (EDIT_CMD_FLAG + REPEAT)
#define IDM_EDITTOP (EDIT_CMD_FLAG + TOP)
/* Windows UI stuff */
LRESULT CALLBACK WndProc (HWND hwnd, UINT message,
UINT wParam, LONG lParam);
LRESULT CALLBACK AboutBox( HWND hDlg, UINT message,
UINT wParam, LONG lParam );
/* Screen dimensions. Maintained by de_win.c. */
extern int LINES;
extern int COLS;
/* File being edited. */
extern char * arg_file_name;
/* Current display position in file. Maintained by de.c */
extern int dis_line;
extern int dis_col;
/* Current cursor position in file. */
extern int line;
extern int col;
/*
* Calls from de_win.c to de.c
*/
CORD retrieve_screen_line(int i);
/* Get the contents of i'th screen line. */
/* Relies on COLS. */
void set_position(int x, int y);
/* Set column, row. Upper left of window = (0,0). */
void do_command(int);
/* Execute an editor command. */
/* Agument is a command character or one */
/* of the IDM_ commands. */
void generic_init(void);
/* OS independent initialization */
/*
* Calls from de.c to de_win.c
*/
void move_cursor(int column, int line);
/* Physically move the cursor on the display, */
/* so that it appears at */
/* (column, line). */
void invalidate_line(int line);
/* Invalidate line i on the screen. */
void de_error(char *s);
/* Display error message. */
\ No newline at end of file
boehm-gc/digimars.mak deleted 100644 → 0
# Makefile to build Hans Boehm garbage collector using the Digital Mars
# compiler from www.digitalmars.com
# Written by Walter Bright
DEFINES=-DNDEBUG -DSILENT -DGC_BUILD -D_WINDOWS -DGC_DLL -DALL_INTERIOR_POINTERS -D__STDC__ -DWIN32_THREADS
CFLAGS=-Iinclude $(DEFINES) -wx -g
LFLAGS=/ma/implib/co
CC=sc
.c.obj:
$(CC) -c $(CFLAGS) $*
.cpp.obj:
$(CC) -c $(CFLAGS) -Aa $*
OBJS= \
allchblk.obj\
alloc.obj\
blacklst.obj\
checksums.obj\
dbg_mlc.obj\
dyn_load.obj\
finalize.obj\
gc_cpp.obj\
headers.obj\
mach_dep.obj\
malloc.obj\
mallocx.obj\
mark.obj\
mark_rts.obj\
misc.obj\
new_hblk.obj\
obj_map.obj\
os_dep.obj\
ptr_chck.obj\
reclaim.obj\
stubborn.obj\
typd_mlc.obj\
win32_threads.obj
targets: gc.dll gc.lib gctest.exe
gc.dll: $(OBJS) gc.def digimars.mak
sc -ogc.dll $(OBJS) -L$(LFLAGS) gc.def kernel32.lib user32.lib
gc.def: digimars.mak
echo LIBRARY GC >gc.def
echo DESCRIPTION "Hans Boehm Garbage Collector" >>gc.def
echo EXETYPE NT >>gc.def
echo EXPORTS >>gc.def
echo GC_is_visible_print_proc >>gc.def
echo GC_is_valid_displacement_print_proc >>gc.def
clean:
del gc.def
del $(OBJS)
gctest.exe : gc.lib tests\test.obj
sc -ogctest.exe tests\test.obj gc.lib
tests\test.obj : tests\test.c
$(CC) -c -g -DNDEBUG -DSILENT -DGC_BUILD -D_WINDOWS -DGC_DLL \
-DALL_INTERIOR_POINTERS -DWIN32_THREADS \
-Iinclude tests\test.c -otests\test.obj
allchblk.obj: allchblk.c
alloc.obj: alloc.c
blacklst.obj: blacklst.c
checksums.obj: checksums.c
dbg_mlc.obj: dbg_mlc.c
dyn_load.obj: dyn_load.c
finalize.obj: finalize.c
gc_cpp.obj: gc_cpp.cpp
headers.obj: headers.c
mach_dep.obj: mach_dep.c
malloc.obj: malloc.c
mallocx.obj: mallocx.c
mark.obj: mark.c
mark_rts.obj: mark_rts.c
misc.obj: misc.c
new_hblk.obj: new_hblk.c
obj_map.obj: obj_map.c
os_dep.obj: os_dep.c
ptr_chck.obj: ptr_chck.c
reclaim.obj: reclaim.c
stubborn.obj: stubborn.c
typd_mlc.obj: typd_mlc.c
win32_threads.obj: win32_threads.c
boehm-gc/doc/README.DGUX386 deleted 100644 → 0
Garbage Collector (parallel iversion) for ix86 DG/UX Release R4.20MU07
*READ* the file README.QUICK.
You need the GCC-3.0.3 rev (DG/UX) compiler to build this tree.
This compiler has the new "dgux386" threads package implemented.
It also supports the switch "-pthread" needed to link correctly
the DG/UX's -lrte -lthread with -lgcc and the system's -lc.
Finally we support parralleli-mark for the SMP DG/UX machines.
To build the garbage collector do:
./configure --enable-parallel-mark
make
make gctest
Before you run "gctest" you need to set your LD_LIBRARY_PATH
correctly so that "gctest" can find the shared library libgc.
Alternatively you can do a configuration
./configure --enable-parallel-mark --disable-shared
to build only the static version of libgc.
To enable debugging messages please do:
1) Add the "--enable-full-debug" flag during configuration.
2) Edit the file linux-threads.c and uncommnect the line:
/* #define DEBUG_THREADS 1 */ to --->
#define DEBUG_THREADS 1
Then give "make" as usual.
In a machine with 4 CPUs (my own machine) the option parallel
mark (aka --enable-parallel-mark) makes a BIG difference.
Takis Psarogiannakopoulos
University of Cambridge
Centre for Mathematical Sciences
Department of Pure Mathematics
Wilberforce Road
Cambridge CB3 0WB ,UK , <takis@XFree86.Org>
January 2002
Note (HB):
The integration of this patch is currently not complete.
The following patches against 6.1alpha3 where hard to move
to alpha4, and are not integrated. There may also be minor
problems with stylistic corrections made by me.
--- ltconfig.ORIG Mon Jan 28 20:22:18 2002
+++ ltconfig Mon Jan 28 20:44:00 2002
@@ -689,6 +689,11 @@
pic_flag=-Kconform_pic
fi
;;
+ dgux*)
+ pic_flag='-fPIC'
+ link_static='-Bstatic'
+ wl='-Wl,'
+ ;;
*)
pic_flag='-fPIC'
;;
@@ -718,6 +723,12 @@
# We can build DLLs from non-PIC.
;;
+ dgux*)
+ pic_flag='-KPIC'
+ link_static='-Bstatic'
+ wl='-Wl,'
+ ;;
+
osf3* | osf4* | osf5*)
# All OSF/1 code is PIC.
wl='-Wl,'
@@ -1154,6 +1165,22 @@
fi
;;
+ dgux*)
+ ld_shlibs=yes
+ # For both C/C++ ommit the deplibs. This is because we relying on the fact
+ # that compilation of execitables will put them in correct order
+ # in any case and sometimes are wrong when listed as deplibs (or missing some deplibs)
+ # However when GNU ld and --whole-archive needs to be used we have the problem
+ # that if the -fPIC *_s.a archive is linked through deplibs list we ommiting crucial
+ # .lo/.o files from the created shared lib. This I think is not the case here.
+ archive_cmds='$CC -shared -h $soname -o $lib $libobjs $linkopts'
+ thread_safe_flag_spec='-pthread'
+ wlarc=
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_shlibpath_var=no
+ ac_cv_archive_cmds_needs_lc=no
+ ;;
+
cygwin* | mingw*)
# hardcode_libdir_flag_spec is actually meaningless, as there is
# no search path for DLLs.
@@ -1497,7 +1524,7 @@
;;
dgux*)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+ archive_cmds='$CC -shared -h $soname -o $lib $libobjs $linkopts'
hardcode_libdir_flag_spec='-L$libdir'
hardcode_shlibpath_var=no
;;
@@ -2092,12 +2119,17 @@
;;
dgux*)
- version_type=linux
+ version_type=dgux
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
- soname_spec='${libname}${release}.so$major'
+ library_names_spec='$libname.so$versuffix'
+ soname_spec='$libname.so$versuffix'
shlibpath_var=LD_LIBRARY_PATH
+ thread_safe_flag_spec='-pthread'
+ wlarc=
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_shlibpath_var=no
+ ac_cv_archive_cmds_needs_lc=no
;;
sysv4*MP*)
--- ltmain.sh.ORIG Mon Jan 28 20:31:18 2002
+++ ltmain.sh Tue Jan 29 00:11:29 2002
@@ -1072,11 +1072,38 @@
esac
;;
+ -thread*)
+ # DG/UX GCC 2.95.x, 3.x.x rev (DG/UX) links -lthread
+ # with the switch -threads
+ if test "$arg" = "-threads"; then
+ case "$host" in
+ i[3456]86-*-dgux*)
+ deplibs="$deplibs $arg"
+ continue
+ ;;
+ esac
+ fi
+ ;;
+
+ -pthread*)
+ # DG/UX GCC 2.95.x, 3.x.x rev (DG/UX) links -lthread
+ # with the switch -pthread
+ if test "$arg" = "-pthread"; then
+ case "$host" in
+ i[3456]86-*-dgux*)
+ deplibs="$deplibs $arg"
+ continue
+ ;;
+ esac
+ fi
+ ;;
+
-l*)
if test "$arg" = "-lc"; then
case "$host" in
- *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos*)
+ *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos* | i[3456]86-*-dgux*)
# These systems don't actually have c library (as such)
+ # It is wrong in DG/UX to add -lc when creating shared/dynamic objs/libs
continue
;;
esac
@@ -1248,6 +1275,12 @@
temp_deplibs=
for deplib in $dependency_libs; do
case "$deplib" in
+ -thread*)
+ temp_deplibs="$temp_deplibs $deplib"
+ ;;
+ -pthread)
+ temp_deplibs="$temp_deplibs $deplib"
+ ;;
-R*) temp_xrpath=`$echo "X$deplib" | $Xsed -e 's/^-R//'`
case " $rpath $xrpath " in
*" $temp_xrpath "*) ;;
@@ -1709,6 +1742,13 @@
done
;;
+ dgux)
+ # Leave mostly blank for DG/UX
+ major=
+ versuffix=".$current.$revision";
+ verstring=
+ ;;
+
linux)
major=.`expr $current - $age`
versuffix="$major.$age.$revision"
@@ -1792,8 +1832,9 @@
dependency_libs="$deplibs"
case "$host" in
- *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos*)
+ *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos* | i[3456]86-*-dgux*)
# these systems don't actually have a c library (as such)!
+ # It is wrong in DG/UX to add -lc when creating shared/dynamic objs/libs
;;
*)
# Add libc to deplibs on all other systems.
boehm-gc/doc/README.MacOSX deleted 100644 → 0
See README.darwin for the latest Darwin/MacOSX information.
boehm-gc/doc/README.OS2 deleted 100644 → 0
The code assumes static linking, and a single thread. The editor de has
not been ported. The cord test program has. The supplied OS2_MAKEFILE
assumes the IBM C Set/2 environment, but the code shouldn't.
Since we haven't figured out hoe to do perform partial links or to build static
libraries, clients currently need to link against a long list of executables.
boehm-gc/doc/README.arm.cross deleted 100644 → 0
From: Margaret Fleck
Here's the key details of what worked for me, in case anyone else needs them.
There may well be better ways to do some of this, but ....
-- Margaret
The badge4 has a StrongArm-1110 processor and a StrongArm-1111 coprocessor.
Assume that the garbage collector distribution is unpacked into /home/arm/gc6.0,
which is visible to both the ARM machine and a linux desktop (e.g. via NFS mounting).
Assume that you have a file /home/arm/config.site with contents something like the
example attached below. Notice that our local ARM toolchain lives in
/skiff/local.
Go to /home/arm/gc6.0 directory. Do
CONFIG_SITE=/home/arm/config.site ./configure --target=arm-linux
--prefix=/home/arm/gc6.0
On your desktop, do:
make
make install
The main garbage collector library should now be in ../gc6.0/lib/libgc.so.
To test the garbage collector, first do the following on your desktop
make gctest
./gctest
Then do the following on the ARM machine
cd .libs
./lt-gctest
Do not try to do "make test" (the usual way of running the test
program). This does not work and seems to erase some of the important
files.
The gctest program claims to have succeeded. Haven't run any further tests
with it, though I'll be doing so in the near future.
-------------------------------
# config.site for configure
# Modified from the one provided by Bradley D. LaRonde
# Edited by Andrej Cedilnik <acedil1@csee.umbc.edu>
# Used some of solutions by Tilman Vogel <Tilman.Vogel@web.de>
# Ported for iPAQ Familiar by Oliver Kurth <oliver.kurth@innominate.com>
# Further modified by Margaret Fleck for the badge4
HOSTCC=gcc
# Names of the cross-compilers
CC=/skiff/local/bin/arm-linux-gcc
CXX=/skiff/local/bin/arm-linux-gcc
# The cross compiler specific options
CFLAGS="-O2 -fno-exceptions"
CXXFLAGS="-O2 -fno-exceptions"
CPPFLAGS="-O2 -fno-exceptions"
LDFLAGS=""
# Some other programs
AR=/skiff/local/bin/arm-linux-ar
RANLIB=/skiff/local/bin/arm-linux-ranlib
NM=/skiff/local/bin/arm-linux-nm
ac_cv_path_NM=/skiff/local/bin/arm-linux-nm
ac_cv_func_setpgrp_void=yes
x_includes=/skiff/local/arm-linux/include/X11
x_libraries=/skiff/local/arm-linux/lib/X11
boehm-gc/doc/README.autoconf deleted 100644 → 0
As of GC6.0alpha8, we attempt to support GNU-style builds based on automake,
autoconf and libtool. This is based almost entirely on Tom Tromey's work
with gcj.
To build and install libraries use
configure; make; make install
The advantages of this process are:
1) It should eventually do a better job of automatically determining the
right compiler to use, etc. It probably already does in some cases.
2) It tries to automatically set a good set of default GC parameters for
the platform (e.g. thread support). It provides an easier way to configure
some of the others.
3) It integrates better with other projects using a GNU-style build process.
4) It builds both dynamic and static libraries.
The known disadvantages are:
1) The build scripts are much more complex and harder to debug (though largely
standard). I don't understand them all, and there's probably lots of redundant
stuff.
2) It probably doesn't work on all Un*x-like platforms yet. It probably will
never work on the rest.
3) The scripts are not yet complete. Some of the standard GNU targets don't
yet work. (Corrections/additions are very welcome.)
The distribution should contain all files needed to run "configure" and "make",
as well as the sources needed to regenerate the derived files. (If I missed
some, please let me know.)
Note that the distribution comes with a "Makefile" which will be overwritten
by "configure" with one that is not at all equiavelent to the original. The
distribution contains a copy of the original "Makefile" in "Makefile.direct".
Important options to configure:
--prefix=PREFIX install architecture-independent files in PREFIX
[/usr/local]
--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
[same as prefix]
--enable-threads=TYPE choose threading package
--enable-parallel-mark parallelize marking and free list construction
--enable-full-debug include full support for pointer backtracing etc.
Unless --prefix is set (or --exec-prefix or one of the more obscure options),
make install will install libgc.a and libgc.so in /usr/local/bin, which
would typically require the "make install" to be run as root.
Most commonly --enable-threads=posix or will be needed. --enable-parallel-mark
is recommended for multiprocessors if it is supported on the platform.
boehm-gc/doc/README.changes deleted 100644 → 0
This source diff could not be displayed because it is too large. You can view the blob instead.
boehm-gc/doc/README.contributors deleted 100644 → 0
This is an attempt to acknowledge early contributions to the garbage
collector. Later contributions should instead be mentioned in
README.changes.
HISTORY -
Early versions of this collector were developed as a part of research
projects supported in part by the National Science Foundation
and the Defense Advance Research Projects Agency.
The garbage collector originated as part of the run-time system for
the Russell programming language implementation. The first version of the
garbage collector was written primarily by Al Demers. It was then refined
and mostly rewritten, primarily by Hans-J. Boehm, at Cornell U.,
the University of Washington, Rice University (where it was first used for
C and assembly code), Xerox PARC, SGI, and HP Labs. However, significant
contributions have also been made by many others.
Some other contributors:
More recent contributors are mentioned in the modification history in
README.changes. My apologies for any omissions.
The SPARC specific code was originally contributed by Mark Weiser.
The Encore Multimax modifications were supplied by
Kevin Kenny (kenny@m.cs.uiuc.edu). The adaptation to the IBM PC/RT is largely
due to Vernon Lee, on machines made available to Rice by IBM.
Much of the HP specific code and a number of good suggestions for improving the
generic code are due to Walter Underwood.
Robert Brazile (brazile@diamond.bbn.com) originally supplied the ULTRIX code.
Al Dosser (dosser@src.dec.com) and Regis Cridlig (Regis.Cridlig@cl.cam.ac.uk)
subsequently provided updates and information on variation between ULTRIX
systems. Parag Patel (parag@netcom.com) supplied the A/UX code.
Jesper Peterson(jep@mtiame.mtia.oz.au), Michel Schinz, and
Martin Tauchmann (martintauchmann@bigfoot.com) supplied the Amiga port.
Thomas Funke (thf@zelator.in-berlin.de(?)) and
Brian D.Carlstrom (bdc@clark.lcs.mit.edu) supplied the NeXT ports.
Douglas Steel (doug@wg.icl.co.uk) provided ICL DRS6000 code.
Bill Janssen (janssen@parc.xerox.com) supplied the SunOS dynamic loader
specific code. Manuel Serrano (serrano@cornas.inria.fr) supplied linux and
Sony News specific code. Al Dosser provided Alpha/OSF/1 code. He and
Dave Detlefs(detlefs@src.dec.com) also provided several generic bug fixes.
Alistair G. Crooks(agc@uts.amdahl.com) supplied the NetBSD and 386BSD ports.
Jeffrey Hsu (hsu@soda.berkeley.edu) provided the FreeBSD port.
Brent Benson (brent@jade.ssd.csd.harris.com) ported the collector to
a Motorola 88K processor running CX/UX (Harris NightHawk).
Ari Huttunen (Ari.Huttunen@hut.fi) generalized the OS/2 port to
nonIBM development environments (a nontrivial task).
Patrick Beard (beard@cs.ucdavis.edu) provided the initial MacOS port.
David Chase, then at Olivetti Research, suggested several improvements.
Scott Schwartz (schwartz@groucho.cse.psu.edu) supplied some of the
code to save and print call stacks for leak detection on a SPARC.
Jesse Hull and John Ellis supplied the C++ interface code.
Zhong Shao performed much of the experimentation that led to the
current typed allocation facility. (His dynamic type inference code hasn't
made it into the released version of the collector, yet.)
boehm-gc/doc/README.cords deleted 100644 → 0
Copyright (c) 1993-1994 by Xerox Corporation. All rights reserved.
THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
Permission is hereby granted to use or copy this program
for any purpose, provided the above notices are retained on all copies.
Permission to modify the code and to distribute modified code is granted,
provided the above notices are retained, and a notice that the code was
modified is included with the above copyright notice.
Please send bug reports to Hans-J. Boehm (Hans_Boehm@hp.com or
boehm@acm.org).
This is a string packages that uses a tree-based representation.
See cord.h for a description of the functions provided. Ec.h describes
"extensible cords", which are essentially output streams that write
to a cord. These allow for efficient construction of cords without
requiring a bound on the size of a cord.
More details on the data structure can be found in
Boehm, Atkinson, and Plass, "Ropes: An Alternative to Strings",
Software Practice and Experience 25, 12, December 1995, pp. 1315-1330.
A fundamentally similar "rope" data structure is also part of SGI's standard
template library implementation, and its descendents, which include the
GNU C++ library. That uses reference counting by default.
There is a short description of that data structure at
http://reality.sgi.com/boehm/ropeimpl.html . (The more official location
http://www.sgi.com/tech/stl/ropeimpl.html is missing a figure.)
All of these are descendents of the "ropes" in Xerox Cedar.
de.c is a very dumb text editor that illustrates the use of cords.
It maintains a list of file versions. Each version is simply a
cord representing the file contents. Nonetheless, standard
editing operations are efficient, even on very large files.
(Its 3 line "user manual" can be obtained by invoking it without
arguments. Note that ^R^N and ^R^P move the cursor by
almost a screen. It does not understand tabs, which will show
up as highlighred "I"s. Use the UNIX "expand" program first.)
To build the editor, type "make cord/de" in the gc directory.
This package assumes an ANSI C compiler such as gcc. It will
not compile with an old-style K&R compiler.
Note that CORD_printf iand friends use C functions with variable numbers
of arguments in non-standard-conforming ways. This code is known to
break on some platforms, notably PowerPC. It should be possible to
build the remainder of the library (everything but cordprnt.c) on
any platform that supports the collector.
boehm-gc/doc/README.darwin deleted 100644 → 0
6.5 update:
I disabled incremental GC on Darwin in this version, since I couldn't
get gctest to pass when the GC was built as a dynamic library. Building
with -DMPROTECT_VDB (and threads) on the command line should get you
back to the old state. - HB
./configure --enable-cplusplus results in a "make check" failure, probably
because the ::delete override ends up in a separate dl, and Darwin dynamic
loader semantics appear to be such that this is not really visible to the
main program, unlike on ELF systems. Someone who understands dynamic
loading needs to lookat this. For now, gc_cpp.o needs to be linked
statically, if needed. - HB
Darwin/MacOSX Support - December 16, 2003
=========================================
Important Usage Notes
=====================
GC_init() MUST be called before calling any other GC functions. This
is necessary to properly register segments in dynamic libraries. This
call is required even if you code does not use dynamic libraries as the
dyld code handles registering all data segments.
When your use of the garbage collector is confined to dylibs and you
cannot call GC_init() before your libraries' static initializers have
run and perhaps called GC_malloc(), create an initialization routine
for each library to call GC_init():
#include <gc/gc.h>
extern "C" void my_library_init() { GC_init(); }
Compile this code into a my_library_init.o, and link it into your
dylib. When you link the dylib, pass the -init argument with
_my_library_init (e.g. gcc -dynamiclib -o my_library.dylib a.o b.o c.o
my_library_init.o -init _my_library_init). This causes
my_library_init() to be called before any static initializers, and
will initialize the garbage collector properly.
Note: It doesn't hurt to call GC_init() more than once, so it's best,
if you have an application or set of libraries that all use the
garbage collector, to create an initialization routine for each of
them that calls GC_init(). Better safe than sorry.
The incremental collector is still a bit flaky on darwin. It seems to
work reliably with workarounds for a few possible bugs in place however
these workaround may not work correctly in all cases. There may also
be additional problems that I have not found.
Thread-local GC allocation will not work with threads that are not
created using the GC-provided override of pthread_create(). Threads
created without the GC-provided pthread_create() do not have the
necessary data structures in the GC to store this data.
Implementation Information
==========================
Darwin/MacOSX support is nearly complete. Thread support is reliable on
Darwin 6.x (MacOSX 10.2) and there have been reports of success on older
Darwin versions (MacOSX 10.1). Shared library support had also been
added and the gc can be run from a shared library. There is currently only
support for Darwin/PPC although adding x86 support should be trivial.
Thread support is implemented in terms of mach thread_suspend and
thread_resume calls. These provide a very clean interface to thread
suspension. This implementation doesn't rely on pthread_kill so the
code works on Darwin < 6.0 (MacOSX 10.1). All the code to stop and
start the world is located in darwin_stop_world.c.
Since not all uses of the GC enable clients to override pthread_create()
before threads have been created, the code for stopping the world has
been rewritten to look for threads using Mach kernel calls. Each
thread identified in this way is suspended and resumed as above. In
addition, since Mach kernel threads do not contain pointers to their
stacks, a stack-walking function has been written to find the stack
limits. Given an initial stack pointer (for the current thread, a
pointer to a stack-allocated local variable will do; for a non-active
thread, we grab the value of register 1 (on PowerPC)), it
will walk the PPC Mach-O-ABI compliant stack chain until it reaches the
top of the stack. This appears to work correctly for GCC-compiled C,
C++, Objective-C, and Objective-C++ code, as well as for Java
programs that use JNI. If you run code that does not follow the stack
layout or stack pointer conventions laid out in the PPC Mach-O ABI,
then this will likely crash the garbage collector.
The original incremental collector support unfortunatelly no longer works
on recent Darwin versions. It also relied on some undocumented kernel
structures. Mach, however, does have a very clean interface to exception
handing. The current implementation uses Mach's exception handling.
Much thanks goes to Andrew Stone, Dietmar Planitzer, Andrew Begel,
Jeff Sturm, and Jesse Rosenstock for all their work on the
Darwin/OS X port.
-Brian Alliet
brian@brianweb.net
Older Information (Most of this no longer applies to the current code)
======================================================================
While the GC should work on MacOS X Server, MacOS X and Darwin, I only tested
it on MacOS X Server.
I've added a PPC assembly version of GC_push_regs(), thus the setjmp() hack is
no longer necessary. Incremental collection is supported via mprotect/signal.
The current solution isn't really optimal because the signal handler must decode
the faulting PPC machine instruction in order to find the correct heap address.
Further, it must poke around in the register state which the kernel saved away
in some obscure register state structure before it calls the signal handler -
needless to say the layout of this structure is no where documented.
Threads and dynamic libraries are not yet supported (adding dynamic library
support via the low-level dyld API shouldn't be that hard).
The original MacOS X port was brought to you by Andrew Stone.
June, 1 2000
Dietmar Planitzer
dave.pl@ping.at
Note from Andrew Begel:
One more fix to enable gc.a to link successfully into a shared library for
MacOS X. You have to add -fno-common to the CFLAGS in the Makefile. MacOSX
disallows common symbols in anything that eventually finds its way into a
shared library. (I don't completely understand why, but -fno-common seems to
work and doesn't mess up the garbage collector's functionality).
Feb 26, 2003
Jeff Sturm and Jesse Rosenstock provided a patch that adds thread support.
GC_MACOSX_THREADS should be defined in the build and in clients. Real
dynamic library support is still missing, i.e. dynamic library data segments
are still not scanned. Code that stores pointers to the garbage collected
heap in statically allocated variables should not reside in a dynamic
library. This still doesn't appear to be 100% reliable.
Mar 10, 2003
Brian Alliet contributed dynamic library support for MacOSX. It could also
use more testing.
boehm-gc/doc/README.dj deleted 100644 → 0
[Original version supplied by Xiaokun Zhu <xiaokun@aero.gla.ac.uk>]
[This version came mostly from Gary Leavens. ]
Look first at Makefile.dj, and possibly change the definitions of
RM and MV if you don't have rm and mv installed.
Then use Makefile.dj to compile the garbage collector.
For example, you can do:
make -f Makefile.dj test
All the tests should work fine.
boehm-gc/doc/README.environment deleted 100644 → 0
The garbage collector looks at a number of environment variables which are
then used to affect its operation. These are examined only on Un*x-like
platforms and win32.
GC_INITIAL_HEAP_SIZE=<bytes> - Initial heap size in bytes. May speed up
process start-up.
GC_MAXIMUM_HEAP_SIZE=<bytes> - Maximum collected heap size.
GC_LOOP_ON_ABORT - Causes the collector abort routine to enter a tight loop.
This may make it easier to debug, such a process, especially
for multithreaded platforms that don't produce usable core
files, or if a core file would be too large. On some
platforms, this also causes SIGSEGV to be caught and
result in an infinite loop in a handler, allowing
similar debugging techniques.
GC_PRINT_STATS - Turn on as much logging as is easily feasible without
adding signifcant runtime overhead. Doesn't work if
the collector is built with SMALL_CONFIG. Overridden
by setting GC_quiet. On by default if the collector
was built without -DSILENT.
GC_DUMP_REGULARLY - Generate a GC debugging dump GC_dump() on startup
and during every collection. Very verbose. Useful
if you have a bug to report, but please include only the
last complete dump.
GC_BACKTRACES=<n> - Generate n random backtraces (for heap profiling) after
each GC. Collector must have been built with
KEEP_BACK_PTRS. This won't generate useful output unless
most objects in the heap were allocated through debug
allocators. This is intended to be only a statistical
sample; individual traces may be erroneous due to
concurrent heap mutation.
GC_PRINT_ADDRESS_MAP - Linux only. Dump /proc/self/maps, i.e. various address
maps for the process, to stderr on every GC. Useful for
mapping root addresses to source for deciphering leak
reports.
GC_NPROCS=<n> - Linux w/threads only. Explicitly sets the number of processors
that the GC should expect to use. Note that setting this to 1
when multiple processors are available will preserve
correctness, but may lead to really horrible performance,
since the lock implementation will immediately yield without
first spinning.
GC_MARKERS=<n> - Linux w/threads and parallel marker only. Set the number
of marker threads. This is normaly set to the number of
processors. It is safer to adjust GC_MARKERS than GC_NPROCS,
since GC_MARKERS has no impact on the lock implementation.
GC_NO_BLACKLIST_WARNING - Prevents the collector from issuing
warnings about allocations of very large blocks.
Deprecated. Use GC_LARGE_ALLOC_WARN_INTERVAL instead.
GC_LARGE_ALLOC_WARN_INTERVAL=<n> - Print every nth warning about very large
block allocations, starting with the nth one. Small values
of n are generally benign, in that a bounded number of
such warnings generally indicate at most a bounded leak.
For best results it should be set at 1 during testing.
Default is 5. Very large numbers effectively disable the
warning.
GC_IGNORE_GCJ_INFO - Ignore the type descriptors implicitly supplied by
GC_gcj_malloc and friends. This is useful for debugging
descriptor generation problems, and possibly for
temporarily working around such problems. It forces a
fully conservative scan of all heap objects except
those known to be pointerfree, and may thus have other
adverse effects.
GC_PRINT_BACK_HEIGHT - Print max length of chain through unreachable objects
ending in a reachable one. If this number remains
bounded, then the program is "GC robust". This ensures
that a fixed number of misidentified pointers can only
result in a bounded space leak. This currently only
works if debugging allocation is used throughout.
It increases GC space and time requirements appreciably.
This feature is still somewhat experimental, and requires
that the collector have been built with MAKE_BACK_GRAPH
defined. For details, see Boehm, "Bounding Space Usage
of Conservative Garbage Collectors", POPL 2001, or
http://lib.hpl.hp.com/techpubs/2001/HPL-2001-251.html .
GC_RETRY_SIGNALS, GC_NO_RETRY_SIGNALS - Try to compensate for lost
thread suspend signals in linux_threads.c. On by
default for GC_OSF1_THREADS, off otherwise. Note
that this does not work around a possible loss of
thread restart signals. This seems to be necessary for
some versions of Tru64. Since we've previously seen
similar issues on some other operating systems, it
was turned into a runtime flag to enable last-minute
work-arounds.
GC_IGNORE_FB[=<n>] - (Win32 only.) Try to avoid treating a mapped
frame buffer as part of the root set. Certain (higher end?)
graphics cards seems to result in the graphics memory mapped
into the user address space as writable memory.
Unfortunately, there seems to be no systematic way to
identify such memory. Setting the environment variable to n
causes the collector to ignore mappings longer than n MB.
The default value of n is currently 15. (This should cover
a 16 MB graphics card, since the mapping appears to be slightly
shorter than all of graphics memory. It will fail if a dll
writes pointers to collectable objects into a data segment
whose length is >= 15MB. Empirically that's rare, but
certainly possible.) WARNING: Security sensitive applications
should probably disable this feature by setting
GC_disallow_ignore_fb, or by building with -DNO_GETENV,
since small values could force collection of reachable
objects, which is conceivably a (difficult to exploit)
security hole. GC_IGNORE_FB values less than 3 MB
are never honored, eliminating this risk for most,
but not all, applications. This feature is likely to disappear
if/when we find a less disgusting "solution".
IN VERSION 6.4 AND LATER, THIS SHOULD BE UNNECESSARY.
The following turn on runtime flags that are also program settable. Checked
only during initialization. We expect that they will usually be set through
other means, but this may help with debugging and testing:
GC_ENABLE_INCREMENTAL - Turn on incremental collection at startup. Note that,
depending on platform and collector configuration, this
may involve write protecting pieces of the heap to
track modifications. These pieces may include pointerfree
objects or not. Although this is intended to be
transparent, it may cause unintended system call failures.
Use with caution.
GC_PAUSE_TIME_TARGET - Set the desired garbage collector pause time in msecs.
This only has an effect if incremental collection is
enabled. If a collection requires appreciably more time
than this, the client will be restarted, and the collector
will need to do additional work to compensate. The
special value "999999" indicates that pause time is
unlimited, and the incremental collector will behave
completely like a simple generational collector. If
the collector is configured for parallel marking, and
run on a multiprocessor, incremental collection should
only be used with unlimited pause time.
GC_FIND_LEAK - Turns on GC_find_leak and thus leak detection. Forces a
collection at program termination to detect leaks that would
otherwise occur after the last GC.
GC_ALL_INTERIOR_POINTERS - Turns on GC_all_interior_pointers and thus interior
pointer recognition.
GC_DONT_GC - Turns off garbage collection. Use cautiously.
boehm-gc/doc/README.ews4800 deleted 100644 → 0
GC on EWS4800
-------------
1. About EWS4800
EWS4800 is 32bit/64bit workstation.
Vender: NEC Corporation
OS: UX/4800 R9.* - R13.* (SystemV R4.2)
CPU: R4000, R4400, R10000 (MIPS)
2. Compiler
32bit:
Use ANSI C compiler.
CC = /usr/abiccs/bin/cc
64bit:
Use 64bit ANSI C compiler.
CC = /usr/ccs64/bin/cc
AR = /usr/ccs64/bin/ar
3. ELF file format
*** Caution: The following infomation is empirical. ***
32bit:
ELF file has an unique format. (See a.out(4) and end(3C).)
&_start
: text segment
&etext
DATASTART
: data segment (initialized)
&edata
DATASTART2
: data segment (uninitialized)
&end
Here, DATASTART and DATASTART2 are macros of GC, and are defined as
the following equations. (See include/private/gcconfig.h.)
The algorithm for DATASTART is similar with the function
GC_SysVGetDataStart() in os_dep.c.
DATASTART = ((&etext + 0x3ffff) & ~0x3ffff) + (&etext & 0xffff)
Dynamically linked:
DATASTART2 = (&_gp + 0x8000 + 0x3ffff) & ~0x3ffff
Statically linked:
DATASTART2 = &edata
GC has to check addresses both between DATASTART and &edata, and
between DATASTART2 and &end. If a program accesses between &etext
and DATASTART, or between &edata and DATASTART2, the segmentation
error occurs and the program stops.
If a program is statically linked, there is not a gap between
&edata and DATASTART2. The global symbol &_DYNAMIC_LINKING is used
for the detection.
64bit:
ELF file has a simple format. (See end(3C).)
_ftext
: text segment
_etext
_fdata = DATASTART
: data segment (initialized)
_edata
_fbss
: data segment (uninitialized)
_end = DATAEND
--
Hironori SAKAMOTO <hsaka@mth.biglobe.ne.jp>
When using the new "configure; make" build process, please
run configure with the --disable-shared option. "Make check" does not
yet pass with dynamic libraries. Ther reasons for that are not yet
understood. (HB, paraphrasing message from Hironori SAKAMOTO.)
boehm-gc/doc/README.hp deleted 100644 → 0
Dynamic loading support requires that executables be linked with -ldld.
The alternative is to build the collector without defining DYNAMIC_LOADING
in gcconfig.h and ensuring that all garbage collectable objects are
accessible without considering statically allocated variables in dynamic
libraries.
The collector should compile with either plain cc or cc -Ae. Cc -Aa
fails to define _HPUX_SOURCE and thus will not configure the collector
correctly.
Incremental collection support was reccently added, and should now work.
In spite of past claims, pthread support under HP/UX 11 should now work.
Define GC_HPUX_THREADS for the build. Incremental collection still does not
work in combination with it.
The stack finding code can be confused by putenv calls before collector
initialization. Call GC_malloc or GC_init before any putenv calls.
boehm-gc/doc/README.linux deleted 100644 → 0
See README.alpha for Linux on DEC AXP info.
This file applies mostly to Linux/Intel IA32. Ports to Linux on an M68K, IA64,
SPARC, MIPS, Alpha and PowerPC are also integrated. They should behave
similarly, except that the PowerPC port lacks incremental GC support, and
it is unknown to what extent the Linux threads code is functional.
See below for M68K specific notes.
Incremental GC is generally supported.
Dynamic libraries are supported on an ELF system. A static executable
should be linked with the gcc option "-Wl,-defsym,_DYNAMIC=0".
The collector appears to work reliably with Linux threads, but beware
of older versions of glibc and gdb.
The garbage collector uses SIGPWR and SIGXCPU if it is used with
Linux threads. These should not be touched by the client program.
To use threads, you need to abide by the following requirements:
1) You need to use LinuxThreads or NPTL (which are included in libc6).
The collector relies on some implementation details of the LinuxThreads
package. This code may not work on other
pthread implementations (in particular it will *not* work with
MIT pthreads).
2) You must compile the collector with -DGC_LINUX_THREADS and -D_REENTRANT
specified in the Makefile.
3a) Every file that makes thread calls should define GC_LINUX_THREADS and
_REENTRANT and then include gc.h. Gc.h redefines some of the
pthread primitives as macros which also provide the collector with
information it requires.
3b) A new alternative to (3a) is to build the collector and compile GC clients
with -DGC_USE_LD_WRAP, and to link the final program with
(for ld) --wrap read --wrap dlopen --wrap pthread_create \
--wrap pthread_join --wrap pthread_detach \
--wrap pthread_sigmask --wrap sleep
(for gcc) -Wl,--wrap -Wl,read -Wl,--wrap -Wl,dlopen -Wl,--wrap \
-Wl,pthread_create -Wl,--wrap -Wl,pthread_join -Wl,--wrap \
-Wl,pthread_detach -Wl,--wrap -Wl,pthread_sigmask \
-Wl,--wrap -Wl,sleep
In any case, _REENTRANT should be defined during compilation.
4) Dlopen() disables collection during its execution. (It can't run
concurrently with the collector, since the collector looks at its
data structures. It can't acquire the allocator lock, since arbitrary
user startup code may run as part of dlopen().) Under unusual
conditions, this may cause unexpected heap growth.
5) The combination of GC_LINUX_THREADS, REDIRECT_MALLOC, and incremental
collection fails in seemingly random places. This hasn't been tracked
down yet, but is perhaps not completely astonishing. The thread package
uses malloc, and thus can presumably get SIGSEGVs while inside the
package. There is no real guarantee that signals are handled properly
at that point.
6) Thread local storage may not be viewed as part of the root set by the
collector. This probably depends on the linuxthreads version. For the
time being, any collectable memory referenced by thread local storage should
also be referenced from elsewhere, or be allocated as uncollectable.
(This is really a bug that should be fixed somehow.)
M68K LINUX:
(From Richard Zidlicky)
The bad news is that it can crash every linux-m68k kernel on a 68040,
so an additional test is needed somewhere on startup. I have meanwhile
patches to correct the problem in 68040 buserror handler but it is not
yet in any standard kernel.
Here is a simple test program to detect whether the kernel has the
problem. It could be run as a separate check in configure or tested
upon startup. If it fails (return !0) than mprotect can't be used
on that system.
/*
* test for bug that may crash 68040 based Linux
*/
#include <sys/mman.h>
#include <signal.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
char *membase;
int pagesize=4096;
int pageshift=12;
int x_taken=0;
int sighandler(int sig)
{
mprotect(membase,pagesize,PROT_READ|PROT_WRITE);
x_taken=1;
}
main()
{
long l;
signal(SIGSEGV,sighandler);
l=(long)mmap(NULL,pagesize,PROT_READ,MAP_PRIVATE | MAP_ANON,-1,0);
if (l==-1)
{
perror("mmap/malloc");
abort();
}
membase=(char*)l;
*(long*)(membase+sizeof(long))=123456789;
if (*(long*)(membase+sizeof(long)) != 123456789 )
{
fprintf(stderr,"writeback failed !\n");
exit(1);
}
if (!x_taken)
{
fprintf(stderr,"exception not taken !\n");
exit(1);
}
fprintf(stderr,"vmtest Ok\n");
exit(0);
}
boehm-gc/doc/README.macros deleted 100644 → 0
The collector uses a large amount of conditional compilation in order to
deal with platform dependencies. This violates a number of known coding
standards. On the other hand, it seems to be the only practical way to
support this many platforms without excessive code duplication.
A few guidelines have mostly been followed in order to keep this manageable:
1) #if and #ifdef directives are properly indented whenever easily possible.
All known C compilers allow whitespace between the "#" and the "if" to make
this possible. ANSI C also allows white space before the "#", though we
avoid that. It has the known disadvantages that it differs from the normal
GNU conventions, and that it makes patches larger than otherwise necessary.
In my opinion, it's still well worth it, for the same reason that we indent
ordinary "if" statements.
2) Whenever possible, tests are performed on the macros defined in gcconfig.h
instead of directly testing patform-specific predefined macros. This makes it
relatively easy to adapt to new compilers with a different set of predefined
macros. Currently these macros generally identify platforms instead of
features. In many cases, this is a mistake.
3) The code currently avoids #elif, eventhough that would make it more
readable. This was done since #elif would need to be understood by ALL
compilers used to build the collector, and that hasn't always been the case.
It makes sense to reconsider this decision at some point, since #elif has been
standardized at least since 1989.
Many of the tested configuration macros are at least somewhat defined in
either include/private/gcconfig.h or in Makefile.direct. Here is an attempt
at defining some of the remainder: (Thanks to Walter Bright for suggesting
this. This is a work in progress)
MACRO EXPLANATION
----- -----------
__DMC__ Always #define'd by the Digital Mars compiler. Expands
to the compiler version number in hex, i.e. 0x810 is
version 8.1b0
_ENABLE_ARRAYNEW
#define'd by the Digital Mars C++ compiler when
operator new[] and delete[] are separately
overloadable. Used in gc_cpp.h.
_MSC_VER Expands to the Visual C++ compiler version. Assumed to
not be defined for other compilers (at least if they behave
appreciably differently).
_DLL Defined by Visual C++ if dynamic libraries are being built
or used. Used to test whether __declspec(dllimport) or
__declspec(dllexport) needs to be added to declarations
to support the case in which the collector is in a dll.
GC_DLL User-settable macro that forces the effect of _DLL. Set
by gc.h if _DLL is defined and GC_NOT_DLL is undefined.
This is the macro that is tested internally to determine
whether the GC is in its own dynamic library. May need
to be set by clients before including gc.h. Note that
inside the GC implementation it indicates that the
collector is in its own dynamic library, should export
its symbols, etc. But in clients it indicates that the
GC resides in a different DLL, its entry points should
be referenced accordingly, and precautions may need to
be taken to properly deal with statically allocated
variables in the main program. Used only for MS Windows.
GC_NOT_DLL User-settable macro that overrides _DLL, e.g. if dynamic
libraries are used, but the collector is in a static library.
__STDC__ Assumed to be defined only by compilers that understand
prototypes and other C89 features. Its value is generally
not used, since we are fine with most nonconforming extensions.
SUNOS5SIGS Solaris-like signal handling. This is probably misnamed,
since it really doesn't guarantee much more than Posix.
Currently set only for Solaris2.X, HPUX, and DRSNX. Should
probably be set for some other platforms.
PCR Set if the collector is being built as part of the Xerox
Portable Common Runtime.
SRC_M3 Set if the collector is being built as a replacement of the
one in the DEC/Compaq SRC Modula-3 runtime. I suspect this
was last used around 1994, and no doubt broke a long time ago.
It's there primarily incase someone wants to port to a similar
system.
USE_COMPILER_TLS Assume the existence of __thread-style thread-local
storage. Set automatically for thread-local allocation with
the HP/UX vendor compiler. Usable with gcc on sufficiently
up-to-date ELF platforms.
boehm-gc/doc/README.rs6000 deleted 100644 → 0
We have so far failed to find a good way to determine the stack base.
It is highly recommended that GC_stackbottom be set explicitly on program
startup. The supplied value sometimes causes failure under AIX 4.1, though
it appears to work under 3.X. HEURISTIC2 seems to work under 4.1, but
involves a substantial performance penalty, and will fail if there is
no limit on stack size.
There is no thread support. (I assume recent versions of AIX provide
pthreads? I no longer have access to a machine ...)
boehm-gc/doc/README.sgi deleted 100644 → 0
Performance of the incremental collector can be greatly enhanced with
-DNO_EXECUTE_PERMISSION.
The collector should run with all of the -32, -n32 and -64 ABIs. Remember to
define the AS macro in the Makefile to be "as -64", or "as -n32".
If you use -DREDIRECT_MALLOC=GC_malloc with C++ code, your code should make
at least one explicit call to malloc instead of new to ensure that the proper
version of malloc is linked in.
Sproc threads are not supported in this version, though there may exist other
ports.
Pthreads support is provided. This requires that:
1) You compile the collector with -DGC_IRIX_THREADS specified in the Makefile.
2) You have the latest pthreads patches installed.
(Though the collector makes only documented pthread calls,
it relies on signal/threads interactions working just right in ways
that are not required by the standard. It is unlikely that this code
will run on other pthreads platforms. But please tell me if it does.)
3) Every file that makes thread calls should define IRIX_THREADS and then
include gc.h. Gc.h redefines some of the pthread primitives as macros which
also provide the collector with information it requires.
4) pthread_cond_wait and pthread_cond_timed_wait should be prepared for
premature wakeups. (I believe the pthreads and realted standards require this
anyway. Irix pthreads often terminate a wait if a signal arrives.
The garbage collector uses signals to stop threads.)
5) It is expensive to stop a thread waiting in IO at the time the request is
initiated. Applications with many such threads may not exhibit acceptable
performance with the collector. (Increasing the heap size may help.)
6) The collector should not be compiled with -DREDIRECT_MALLOC. This
confuses some library calls made by the pthreads implementation, which
expect the standard malloc.
boehm-gc/doc/README.solaris2 deleted 100644 → 0
The collector supports both incremental collection and threads under
Solaris 2. The incremental collector normally retrieves page dirty information
through the appropriate /proc calls. But it can also be configured
(by defining MPROTECT_VDB instead of PROC_VDB in gcconfig.h) to use mprotect
and signals. This may result in shorter pause times, but it is no longer
safe to issue arbitrary system calls that write to the heap.
Under other UNIX versions,
the collector normally obtains memory through sbrk. There is some reason
to expect that this is not safe if the client program also calls the system
malloc, or especially realloc. The sbrk man page strongly suggests this is
not safe: "Many library routines use malloc() internally, so use brk()
and sbrk() only when you know that malloc() definitely will not be used by
any library routine." This doesn't make a lot of sense to me, since there
seems to be no documentation as to which routines can transitively call malloc.
Nonetheless, under Solaris2, the collector now (since 4.12) allocates
memory using mmap by default. (It defines USE_MMAP in gcconfig.h.)
You may want to reverse this decisions if you use -DREDIRECT_MALLOC=...
SOLARIS THREADS:
The collector must be compiled with -DGC_SOLARIS_THREADS (thr_ functions)
or -DGC_SOLARIS_PTHREADS (pthread_ functions) to be thread safe.
It is also essential that gc.h be included in files that call thr_create,
thr_join, thr_suspend, thr_continue, or dlopen. Gc.h macro defines
these to also do GC bookkeeping, etc. Gc.h must be included with
one or both of these macros defined, otherwise
these replacements are not visible.
A collector built in this way way only be used by programs that are
linked with the threads library.
In this mode, the collector contains various workarounds for older Solaris
bugs. Mostly, these should not be noticeable unless you look at system
call traces. However, it cannot protect a guard page at the end of
a thread stack. If you know that you will only be running Solaris2.5
or later, it should be possible to fix this by compiling the collector
with -DSOLARIS23_MPROTECT_BUG_FIXED.
Since 5.0 alpha5, dlopen disables collection temporarily,
unless USE_PROC_FOR_LIBRARIES is defined. In some unlikely cases, this
can result in unpleasant heap growth. But it seems better than the
race/deadlock issues we had before.
If solaris_threads are used on an X86 processor with malloc redirected to
GC_malloc a deadlock is likely to result.
It appears that there is a problem in using gc_cpp.h in conjunction with
Solaris threads and Sun's C++ runtime. Apparently the overloaded new operator
is invoked by some iostream initialization code before threads are correctly
initialized. As a result, call to thr_self() in garbage collector
initialization segfaults. Currently the only known workaround is to not
invoke the garbage collector from a user defined global operator new, or to
have it invoke the garbage-collector's allocators only after main has started.
(Note that the latter requires a moderately expensive test in operator
delete.)
Hans-J. Boehm
(The above contains my personal opinions, which are probably not shared
by anyone else.)
boehm-gc/doc/README.uts deleted 100644 → 0
Alistair Crooks supplied the port. He used Lexa C version 2.1.3 with
-Xa to compile.
boehm-gc/doc/README.win32 deleted 100644 → 0
The collector has at various times been compiled under Windows 95 & later, NT,
and XP, with the original Microsoft SDK, with Visual C++ 2.0, 4.0, and 6, with
the GNU win32 tools, with Borland 4.5, with Watcom C, and recently
with the Digital Mars compiler. It is likely that some of these have been
broken in the meantime. Patches are appreciated.
For historical reasons,
the collector test program "gctest" is linked as a GUI application,
but does not open any windows. Its output appears in the file
"gc.log". It may be started from the file manager. The hour glass
cursor may appear as long as it's running. If it is started from the
command line, it will usually run in the background. Wait a few
minutes (a few seconds on a modern machine) before you check the output.
You should see either a failure indication or a "Collector appears to
work" message.
The cord test program has not been ported (but should port
easily). A toy editor (cord/de.exe) based on cords (heavyweight
strings represented as trees) has been ported and is included.
It runs fine under either win32 or win32S. It serves as an example
of a true Windows application, except that it was written by a
nonexpert Windows programmer. (There are some peculiarities
in the way files are displayed. The <cr> is displayed explicitly
for standard DOS text files. As in the UNIX version, control
characters are displayed explicitly, but in this case as red text.
This may be suboptimal for some tastes and/or sets of default
window colors.)
In general -DREDIRECT_MALLOC is unlikely to work unless the
application is completely statically linked.
The collector normally allocates memory from the OS with VirtualAlloc.
This appears to cause problems under Windows NT and Windows 2000 (but
not Windows 95/98) if the memory is later passed to CreateDIBitmap.
To work around this problem, build the collector with -DUSE_GLOBAL_ALLOC.
This is currently incompatible with -DUSE_MUNMAP. (Thanks to Jonathan
Clark for tracking this down. There's some chance this may be fixed
in 6.1alpha4, since we now separate heap sections with an unused page.)
Microsoft Tools
---------------
For Microsoft development tools, rename NT_MAKEFILE as
MAKEFILE. (Make sure that the CPU environment variable is defined
to be i386.) In order to use the gc_cpp.h C++ interface, all
client code should include gc_cpp.h.
For historical reasons,
the collector test program "gctest" is linked as a GUI application,
but does not open any windows. Its output appears in the file
"gc.log". It may be started from the file manager. The hour glass
cursor may appear as long as it's running. If it is started from the
command line, it will usually run in the background. Wait a few
minutes (a few seconds on a modern machine) before you check the output.
You should see either a failure indication or a "Collector appears to
work" message.
If you would prefer a VC++.NET project file, ask boehm@acm.org. One has
been contributed, but it seems to contain some absolute paths etc., so
it can presumably only be a starting point, and is not in the standard
distribution. It is unclear (to me, Hans Boehm) whether it is feasible to
change that.
Clients may need to define GC_NOT_DLL before including gc.h, if the
collector was built as a static library (as it normally is in the
absence of thread support).
GNU Tools
---------
For GNU-win32, use the regular makefile, possibly after uncommenting
the line "include Makefile.DLLs". The latter should be necessary only
if you want to package the collector as a DLL.
[Is the following sentence obsolete? -HB] The GNU-win32 port is
believed to work only for b18, not b19, probably due to linker changes
in b19. This is probably fixable with a different definition of
DATASTART and DATAEND in gcconfig.h.
The collector should also be buildable under Cygwin with either the
old standard Makefile, or with the "configure;make" machinery.
Borland Tools
-------------
[Rarely tested.]
For Borland tools, use BCC_MAKEFILE. Note that
Borland's compiler defaults to 1 byte alignment in structures (-a1),
whereas Visual C++ appears to default to 8 byte alignment (/Zp8).
The garbage collector in its default configuration EXPECTS AT
LEAST 4 BYTE ALIGNMENT. Thus the BORLAND DEFAULT MUST
BE OVERRIDDEN. (In my opinion, it should usually be anyway.
I expect that -a1 introduces major performance penalties on a
486 or Pentium.) Note that this changes structure layouts. (As a last
resort, gcconfig.h can be changed to allow 1 byte alignment. But
this has significant negative performance implications.)
The Makefile is set up to assume Borland 4.5. If you have another
version, change the line near the top. By default, it does not
require the assembler. If you do have the assembler, I recommend
removing the -DUSE_GENERIC.
Incremental Collection
----------------------
There is some support for incremental collection. This is
currently pretty simple-minded. Pages are protected. Protection
faults are caught by a handler installed at the bottom of the handler
stack. This is both slow and interacts poorly with a debugger.
Whenever possible, I recommend adding a call to
GC_enable_incremental at the last possible moment, after most
debugging is complete. Unlike the UNIX versions, no system
calls are wrapped by the collector itself. It may be necessary
to wrap ReadFile calls that use a buffer in the heap, so that the
call does not encounter a protection fault while it's running.
(As usual, none of this is an issue unless GC_enable_incremental
is called.)
Note that incremental collection is disabled with -DSMALL_CONFIG.
Threads
-------
James Clark has contributed the necessary code to support win32 threads
with the collector in a DLL.
Use NT_THREADS_MAKEFILE (a.k.a gc.mak) instead of NT_MAKEFILE
to build this version. Note that this requires some files whose names
are more than 8 + 3 characters long. Thus you should unpack the tar file
so that long file names are preserved. To build the garbage collector
test with VC++ from the command line, use
nmake /F ".\gc.mak" CFG="gctest - Win32 Release"
This requires that the subdirectory gctest\Release exist.
The test program and DLL will reside in the Release directory.
This version relies on the collector residing in a dll.
This version currently supports incremental collection only if it is
enabled before any additional threads are created.
Since 6.3alpha2, threads are also better supported in static library builds
with Microsoft tools (use NT_STATIC_THREADS_MAKEFILE) and with the GNU
tools. In all cases,the collector must be built with GC_WIN32_THREADS
defined, even if the Cygwin pthreads interface is used.
(NT_STATIC_THREADS_MAKEFILE does this implicitly. Under Cygwin,
./configure --enable-threads=posix defines GC_WIN32_THREADS.) Threads must be
created with GC_CreateThread. This can be accomplished by
including gc.h and then calling CreateThread, which is redefined
by gc.h.
For the statically linked versions, it is required that GC_init()
be called before other GC calls, since there seems to be no implicit way
to initialize the allocation lock. The easiest way to ensure this in
portable code is to call GC_INIT() from the main executable (not
a dynamic library) before calling any other GC_ routines.
We strongly advise against using the TerminateThread() win32 API call,
especially with the garbage collector. Any use is likely to provoke a
crash in the GC, since it makes it impossible for the collector to
correctly track threads.
Watcom compiler
---------------
Ivan V. Demakov's README for the Watcom port:
The collector has been compiled with Watcom C 10.6 and 11.0.
It runs under win32, win32s, and even under msdos with dos4gw
dos-extender. It should also run under OS/2, though this isn't
tested. Under win32 the collector can be built either as dll
or as static library.
Note that all compilations were done under Windows 95 or NT.
For unknown reason compiling under Windows 3.11 for NT (one
attempt has been made) leads to broken executables.
Incremental collection is not supported.
cord is not ported.
Before compiling you may need to edit WCC_MAKEFILE to set target
platform, library type (dynamic or static), calling conventions, and
optimization options.
To compile the collector and testing programs use the command:
wmake -f WCC_MAKEFILE
All programs using gc should be compiled with 4-byte alignment.
For further explanations on this see comments about Borland.
If the gc is compiled as dll, the macro ``GC_DLL'' should be defined before
including "gc.h" (for example, with -DGC_DLL compiler option). It's
important, otherwise resulting programs will not run.
Ivan Demakov (email: ivan@tgrad.nsk.su)
Win32S
------
[The following is probably obsolete. The win32s support is still in the
collector, but I doubt anyone cares, or has tested it recently.]
The collector runs under both win32s and win32, but with different semantics.
Under win32, all writable pages outside of the heaps and stack are
scanned for roots. Thus the collector sees pointers in DLL data
segments. Under win32s, only the main data segment is scanned.
(The main data segment should always be scanned. Under some
versions of win32s, other regions may also be scanned.)
Thus all accessible objects should be accessible from local variables
or variables in the main data segment. Alternatively, other data
segments (e.g. in DLLs) may be registered with the collector by
calling GC_init() and then GC_register_root_section(a), where
a is the address of some variable inside the data segment. (Duplicate
registrations are ignored, but not terribly quickly.)
(There are two reasons for this. We didn't want to see many 16:16
pointers. And the VirtualQuery call has different semantics under
the two systems, and under different versions of win32s.)
boehm-gc/doc/barrett_diagram deleted 100644 → 0
This is an ASCII diagram of the data structure used to check pointer
validity. It was provided by Dave Barrett <barrett@asgard.cs.colorado.edu>,
and should be of use to others attempting to understand the code.
The data structure in GC4.X is essentially the same. -HB
Data Structure used by GC_base in gc3.7:
21-Apr-94
63 LOG_TOP_SZ[11] LOG_BOTTOM_SZ[10] LOG_HBLKSIZE[13]
+------------------+----------------+------------------+------------------+
p:| | TL_HASH(hi) | | HBLKDISPL(p) |
+------------------+----------------+------------------+------------------+
\-----------------------HBLKPTR(p)-------------------/
\------------hi-------------------/
\______ ________/ \________ _______/ \________ _______/
V V V
| | |
GC_top_index[] | | |
--- +--------------+ | | |
^ | | | | |
| | | | | |
TOP +--------------+<--+ | |
_SZ +-<| [] | * | |
(items)| +--------------+ if 0 < bi< HBLKSIZE | |
| | | | then large object | |
| | | | starts at the bi'th | |
v | | | HBLK before p. | i |
--- | +--------------+ | (word- |
v | aligned) |
bi= |GET_BI(p){->hash_link}->key==hi | |
v | |
| (bottom_index) \ scratch_alloc'd | |
| ( struct bi ) / by get_index() | |
--- +->+--------------+ | |
^ | | | |
^ | | | |
BOTTOM | | ha=GET_HDR_ADDR(p) | |
_SZ(items)+--------------+<----------------------+ +-------+
| +--<| index[] | |
| | +--------------+ GC_obj_map: v
| | | | from / +-+-+-----+-+-+-+-+ ---
v | | | GC_add < 0| | | | | | | | ^
--- | +--------------+ _map_entry \ +-+-+-----+-+-+-+-+ |
| | asc_link | +-+-+-----+-+-+-+-+ MAXOBJSZ
| +--------------+ +-->| | | j | | | | | +1
| | key | | +-+-+-----+-+-+-+-+ |
| +--------------+ | +-+-+-----+-+-+-+-+ |
| | hash_link | | | | | | | | | | v
| +--------------+ | +-+-+-----+-+-+-+-+ ---
| | |<--MAX_OFFSET--->|
| | (bytes)
HDR(p)| GC_find_header(p) | |<--MAP_ENTRIES-->|
| \ from | =HBLKSIZE/WORDSZ
| (hdr) (struct hblkhdr) / alloc_hdr() | (1024 on Alpha)
+-->+----------------------+ | (8/16 bits each)
GET_HDR(p)| word hb_sz (words) | |
+----------------------+ |
| struct hblk *hb_next | |
+----------------------+ |
|mark_proc hb_mark_proc| |
+----------------------+ |
| char * hb_map |>-------------+
+----------------------+
| ushort hb_obj_kind |
+----------------------+
| hb_last_reclaimed |
--- +----------------------+
^ | |
MARK_BITS| hb_marks[] | *if hdr is free, hb_sz + DISCARD_WORDS
_SZ(words)| | is the size of a heap chunk (struct hblk)
v | | of at least MININCR*HBLKSIZE bytes (below),
--- +----------------------+ otherwise, size of each object in chunk.
Dynamic data structures above are interleaved throughout the heap in blocks of
size MININCR * HBLKSIZE bytes as done by gc_scratch_alloc which cannot be
freed; free lists are used (e.g. alloc_hdr). HBLKs's below are collected.
(struct hblk)
--- +----------------------+ < HBLKSIZE --- --- DISCARD_
^ |garbage[DISCARD_WORDS]| aligned ^ ^ HDR_BYTES WORDS
| | | | v (bytes) (words)
| +-----hb_body----------+ < WORDSZ | --- ---
| | | aligned | ^ ^
| | Object 0 | | hb_sz |
| | | i |(word- (words)|
| | | (bytes)|aligned) v |
| + - - - - - - - - - - -+ --- | --- |
| | | ^ | ^ |
n * | | j (words) | hb_sz BODY_SZ
HBLKSIZE | Object 1 | v v | (words)
(bytes) | |--------------- v MAX_OFFSET
| + - - - - - - - - - - -+ --- (bytes)
| | | !All_INTERIOR_PTRS ^ |
| | | sets j only for hb_sz |
| | Object N | valid object offsets. | |
v | | All objects WORDSZ v v
--- +----------------------+ aligned. --- ---
DISCARD_WORDS is normally zero. Indeed the collector has not been tested
with another value in ages.
boehm-gc/doc/gc.man deleted 100644 → 0
.TH GC_MALLOC 1L "2 October 2003"
.SH NAME
GC_malloc, GC_malloc_atomic, GC_free, GC_realloc, GC_enable_incremental, GC_register_finalizer, GC_malloc_ignore_off_page, GC_malloc_atomic_ignore_off_page, GC_set_warn_proc \- Garbage collecting malloc replacement
.SH SYNOPSIS
#include "gc.h"
.br
void * GC_malloc(size_t size);
.br
void GC_free(void *ptr);
.br
void * GC_realloc(void *ptr, size_t size);
.br
.sp
cc ... gc.a
.LP
.SH DESCRIPTION
.I GC_malloc
and
.I GC_free
are plug-in replacements for standard malloc and free. However,
.I
GC_malloc
will attempt to reclaim inaccessible space automatically by invoking a conservative garbage collector at appropriate points. The collector traverses all data structures accessible by following pointers from the machines registers, stack(s), data, and bss segments. Inaccessible structures will be reclaimed. A machine word is considered to be a valid pointer if it is an address inside an object allocated by
.I
GC_malloc
or friends.
.LP
In most cases it is preferable to call the macros GC_MALLOC, GC_FREE, etc.
instead of calling GC_malloc and friends directly. This allows debugging
versions of the routines to be substituted by defining GC_DEBUG before
including gc.h.
.LP
See the documentation in the include file gc_cpp.h for an alternate, C++ specific interface to the garbage collector.
.LP
Unlike the standard implementations of malloc,
.I
GC_malloc
clears the newly allocated storage.
.I
GC_malloc_atomic
does not. Furthermore, it informs the collector that the resulting object will never contain any pointers, and should therefore not be scanned by the collector.
.LP
.I
GC_free
can be used to deallocate objects, but its use is optional, and generally discouraged.
.I
GC_realloc
has the standard realloc semantics. It preserves pointer-free-ness.
.I
GC_register_finalizer
allows for registration of functions that are invoked when an object becomes inaccessible.
.LP
The garbage collector tries to avoid allocating memory at locations that already appear to be referenced before allocation. (Such apparent ``pointers'' are usually large integers and the like that just happen to look like an address.) This may make it hard to allocate very large objects. An attempt to do so may generate a warning.
.LP
.I
GC_malloc_ignore_off_page
and
.I
GC_malloc_atomic_ignore_off_page
inform the collector that the client code will always maintain a pointer to near the beginning of the object (within the first 512 bytes), and that pointers beyond that can be ignored by the collector. This makes it much easier for the collector to place large objects. These are recommended for large object allocation. (Objects expected to be larger than about 100KBytes should be allocated this way.)
.LP
It is also possible to use the collector to find storage leaks in programs destined to be run with standard malloc/free. The collector can be compiled for thread-safe operation. Unlike standard malloc, it is safe to call malloc after a previous malloc call was interrupted by a signal, provided the original malloc call is not resumed.
.LP
The collector may, on rare occasion produce warning messages. On UNIX machines these appear on stderr. Warning messages can be filtered, redirected, or ignored with
.I
GC_set_warn_proc
This is recommended for production code. See gc.h for details.
.LP
Fully portable code should call
.I
GC_INIT
from the main program before making any other GC calls.
On most platforms this does nothing and the collector is initialized on first use.
On a few platforms explicit initialization is necessary. And it can never hurt.
.LP
Debugging versions of many of the above routines are provided as macros. Their names are identical to the above, but consist of all capital letters. If GC_DEBUG is defined before gc.h is included, these routines do additional checking, and allow the leak detecting version of the collector to produce slightly more useful output. Without GC_DEBUG defined, they behave exactly like the lower-case versions.
.LP
On some machines, collection will be performed incrementally after a call to
.I
GC_enable_incremental.
This may temporarily write protect pages in the heap. See the README file for more information on how this interacts with system calls that write to the heap.
.LP
Other facilities not discussed here include limited facilities to support incremental collection on machines without appropriate VM support, provisions for providing more explicit object layout information to the garbage collector, more direct support for ``weak'' pointers, support for ``abortable'' garbage collections during idle time, etc.
.LP
.SH "SEE ALSO"
The README and gc.h files in the distribution. More detailed definitions of the functions exported by the collector are given there. (The above list is not complete.)
.LP
The web site at http://www.hpl.hp.com/personal/Hans_Boehm/gc .
.LP
Boehm, H., and M. Weiser, "Garbage Collection in an Uncooperative Environment",
\fISoftware Practice & Experience\fP, September 1988, pp. 807-820.
.LP
The malloc(3) man page.
.LP
.SH AUTHOR
Hans-J. Boehm (Hans.Boehm@hp.com).
Some of the code was written by others, most notably Alan Demers.
boehm-gc/doc/leak.html deleted 100644 → 0
<HTML>
<HEAD>
<TITLE>Using the Garbage Collector as Leak Detector</title>
</head>
<BODY>
<H1>Using the Garbage Collector as Leak Detector</h1>
The garbage collector may be used as a leak detector.
In this case, the primary function of the collector is to report
objects that were allocated (typically with <TT>GC_MALLOC</tt>),
not deallocated (normally with <TT>GC_FREE</tt>), but are
no longer accessible. Since the object is no longer accessible,
there in normally no way to deallocate the object at a later time;
thus it can safely be assumed that the object has been "leaked".
<P>
This is substantially different from counting leak detectors,
which simply verify that all allocated objects are eventually
deallocated. A garbage-collector based leak detector can provide
somewhat more precise information when an object was leaked.
More importantly, it does not report objects that are never
deallocated because they are part of "permanent" data structures.
Thus it does not require all objects to be deallocated at process
exit time, a potentially useless activity that often triggers
large amounts of paging.
<P>
All non-ancient versions of the garbage collector provide
leak detection support. Version 5.3 adds the following
features:
<OL>
<LI> Leak detection mode can be initiated at run-time by
setting GC_find_leak instead of building the collector with FIND_LEAK
defined. This variable should be set to a nonzero value
at program startup.
<LI> Leaked objects should be reported and then correctly garbage collected.
Prior versions either reported leaks or functioned as a garbage collector.
</ol>
For the rest of this description we will give instructions that work
with any reasonable version of the collector.
<P>
To use the collector as a leak detector, follow the following steps:
<OL>
<LI> Build the collector with -DFIND_LEAK. Otherwise use default
build options.
<LI> Change the program so that all allocation and deallocation goes
through the garbage collector.
<LI> Arrange to call <TT>GC_gcollect</tt> at appropriate points to check
for leaks.
(For sufficiently long running programs, this will happen implicitly,
but probably not with sufficient frequency.)
</ol>
The second step can usually be accomplished with the
<TT>-DREDIRECT_MALLOC=GC_malloc</tt> option when the collector is built,
or by defining <TT>malloc</tt>, <TT>calloc</tt>,
<TT>realloc</tt> and <TT>free</tt>
to call the corresponding garbage collector functions.
But this, by itself, will not yield very informative diagnostics,
since the collector does not keep track of information about
how objects were allocated. The error reports will include
only object addresses.
<P>
For more precise error reports, as much of the program as possible
should use the all uppercase variants of these functions, after
defining <TT>GC_DEBUG</tt>, and then including <TT>gc.h</tt>.
In this environment <TT>GC_MALLOC</tt> is a macro which causes
at least the file name and line number at the allocation point to
be saved as part of the object. Leak reports will then also include
this information.
<P>
Many collector features (<I>e.g</i> stubborn objects, finalization,
and disappearing links) are less useful in this context, and are not
fully supported. Their use will usually generate additional bogus
leak reports, since the collector itself drops some associated objects.
<P>
The same is generally true of thread support. However, as of 6.0alpha4,
correct leak reports should be generated with linuxthreads.
<P>
On a few platforms (currently Solaris/SPARC, Irix, and, with -DSAVE_CALL_CHAIN,
Linux/X86), <TT>GC_MALLOC</tt>
also causes some more information about its call stack to be saved
in the object. Such information is reproduced in the error
reports in very non-symbolic form, but it can be very useful with the
aid of a debugger.
<H2>An Example</h2>
The following header file <TT>leak_detector.h</tt> is included in the
"include" subdirectory of the distribution:
<PRE>
#define GC_DEBUG
#include "gc.h"
#define malloc(n) GC_MALLOC(n)
#define calloc(m,n) GC_MALLOC((m)*(n))
#define free(p) GC_FREE(p)
#define realloc(p,n) GC_REALLOC((p),(n))
#define CHECK_LEAKS() GC_gcollect()
</pre>
<P>
Assume the collector has been built with -DFIND_LEAK. (For very
new versions of the collector, we could instead add the statement
<TT>GC_find_leak = 1</tt> as the first statement in <TT>main</tt>.
<P>
The program to be tested for leaks can then look like:
<PRE>
#include "leak_detector.h"
main() {
int *p[10];
int i;
/* GC_find_leak = 1; for new collector versions not */
/* compiled with -DFIND_LEAK. */
for (i = 0; i < 10; ++i) {
p[i] = malloc(sizeof(int)+i);
}
for (i = 1; i < 10; ++i) {
free(p[i]);
}
for (i = 0; i < 9; ++i) {
p[i] = malloc(sizeof(int)+i);
}
CHECK_LEAKS();
}
</pre>
<P>
On an Intel X86 Linux system this produces on the stderr stream:
<PRE>
Leaked composite object at 0x806dff0 (leak_test.c:8, sz=4)
</pre>
(On most unmentioned operating systems, the output is similar to this.
If the collector had been built on Linux/X86 with -DSAVE_CALL_CHAIN,
the output would be closer to the Solaris example. For this to work,
the program should not be compiled with -fomit_frame_pointer.)
<P>
On Irix it reports
<PRE>
Leaked composite object at 0x10040fe0 (leak_test.c:8, sz=4)
Caller at allocation:
##PC##= 0x10004910
</pre>
and on Solaris the error report is
<PRE>
Leaked composite object at 0xef621fc8 (leak_test.c:8, sz=4)
Call chain at allocation:
args: 4 (0x4), 200656 (0x30FD0)
##PC##= 0x14ADC
args: 1 (0x1), -268436012 (0xEFFFFDD4)
##PC##= 0x14A64
</pre>
In the latter two cases some additional information is given about
how malloc was called when the leaked object was allocated. For
Solaris, the first line specifies the arguments to <TT>GC_debug_malloc</tt>
(the actual allocation routine), The second the program counter inside
main, the third the arguments to <TT>main</tt>, and finally the program
counter inside the caller to main (i.e. in the C startup code).
<P>
In the Irix case, only the address inside the caller to main is given.
<P>
In many cases, a debugger is needed to interpret the additional information.
On systems supporting the "adb" debugger, the <TT>callprocs</tt> script
can be used to replace program counter values with symbolic names.
As of version 6.1, the collector tries to generate symbolic names for
call stacks if it knows how to do so on the platform. This is true on
Linux/X86, but not on most other platforms.
<H2>Simplified leak detection under Linux</h2>
Since version 6.1, it should be possible to run the collector in leak
detection mode on a program a.out under Linux/X86 as follows:
<OL>
<LI> Ensure that a.out is a single-threaded executable. This doesn't yet work
for multithreaded programs.
<LI> If possible, ensure that the addr2line program is installed in
/usr/bin. (It comes with RedHat Linux.)
<LI> If possible, compile a.out with full debug information.
This will improve the quality of the leak reports. With this approach, it is
no longer necessary to call GC_ routines explicitly, though that can also
improve the quality of the leak reports.
<LI> Build the collector and install it in directory <I>foo</i> as follows:
<UL>
<LI> configure --prefix=<I>foo</i> --enable-full-debug --enable-redirect-malloc
--disable-threads
<LI> make
<LI> make install
</ul>
<LI> Set environment variables as follows:
<UL>
<LI> LD_PRELOAD=<I>foo</i>/lib/libgc.so
<LI> GC_FIND_LEAK
<LI> You may also want to set GC_PRINT_STATS (to confirm that the collector
is running) and/or GC_LOOP_ON_ABORT (to facilitate debugging from another
window if something goes wrong).
</ul
<LI> Simply run a.out as you normally would. Note that if you run anything
else (<I>e.g.</i> your editor) with those environment variables set,
it will also be leak tested. This may or may not be useful and/or
embarrassing. It can generate
mountains of leak reports if the application wasn't designed to avoid leaks,
<I>e.g.</i> because it's always short-lived.
</ol>
This has not yet been thropughly tested on large applications, but it's known
to do the right thing on at least some small ones.
</body>
</html>
boehm-gc/doc/simple_example.html deleted 100644 → 0
<HTML>
<HEAD>
<TITLE>Using the Garbage Collector: A simple example</title>
</head>
<BODY>
<H1>Using the Garbage Collector: A simple example</h1>
The following consists of step-by-step instructions for building and
using the collector. We'll assume a Linux/gcc platform and
a single-threaded application. <FONT COLOR=green>The green
text contains information about other platforms or scenarios.
It can be skipped, especially on first reading</font>.
<H2>Building the collector</h2>
If you haven't already so, unpack the collector and enter
the newly created directory with
<PRE>
tar xvfz gc<version>.tar.gz
cd gc<version>
</pre>
<P>
You can configure, build, and install the collector in a private
directory, say /home/xyz/gc, with the following commands:
<PRE>
./configure --prefix=/home/xyz/gc --disable-threads
make
make check
make install
</pre>
Here the "<TT>make check</tt>" command is optional, but highly recommended.
It runs a basic correctness test which usually takes well under a minute.
<FONT COLOR=green>
<H3>Other platforms</h3>
On non-Unix, non-Linux platforms, the collector is usually built by copying
the appropriate makefile (see the platform-specific README in doc/README.xxx
in the distribution) to the file "Makefile" (overwriting the copy of
Makefile.direct that was originally there), and then typing "make"
(or "nmake" or ...). This builds the library in the source tree. You may
want to move it and the files in the include directory to a more convenient
place.
<P>
If you use a makefile that does not require running a configure script,
you should first look at the makefile, and adjust any options that are
documented there.
<P>
If your platform provides a "make" utility, that is generally preferred
to platform- and compiler- dependent "project" files. (At least that is the
strong preference of the would-be maintainer of those project files.)
<H3>Threads</h3>
If you need thread support, configure the collector with
<PRE>
--enable-threads=posix --enable-thread-local-alloc --enable-parallel-mark
</pre>
instead of
<TT>--disable-threads</tt>
If your target is a real old-fashioned uniprocessor (no "hyperthreading",
etc.) you will want to omit <TT>--enable-parallel-mark</tt>.
<H3>C++</h3>
You will need to include the C++ support, which unfortunately tends to
be among the least portable parts of the collector, since it seems
to rely on some corner cases of the language. On Linux, it
suffices to add <TT>--enable-cplusplus</tt> to the configure options.
</font>
<H2>Writing the program</h2>
You will need a
<PRE>
#include "gc.h"
</pre>
at the beginning of every file that allocates memory through the
garbage collector. Call <TT>GC_MALLOC</tt> wherever you would
have call <TT>malloc</tt>. This initializes memory to zero like
<TT>calloc</tt>; there is no need to explicitly clear the
result.
<P>
If you know that an object will not contain pointers to the
garbage-collected heap, and you don't need it to be initialized,
call <TT>GC_MALLOC_ATOMIC</tt> instead.
<P>
A function <TT>GC_FREE</tt> is provided but need not be called.
For very small objects, your program will probably perform better if
you do not call it, and let the collector do its job.
<P>
A <TT>GC_REALLOC</tt> function behaves like the C library <TT>realloc</tt>.
It allocates uninitialized pointer-free memory if the original
object was allocated that way.
<P>
The following program <TT>loop.c</tt> is a trivial example:
<PRE>
#include "gc.h"
#include &lt;assert.h&gt;
#include &lt;stdio.h&gt;
int main()
{
int i;
GC_INIT(); /* Optional on Linux/X86; see below. */
for (i = 0; i < 10000000; ++i)
{
int **p = (int **) GC_MALLOC(sizeof(int *));
int *q = (int *) GC_MALLOC_ATOMIC(sizeof(int));
assert(*p == 0);
*p = (int *) GC_REALLOC(q, 2 * sizeof(int));
if (i % 100000 == 0)
printf("Heap size = %d\n", GC_get_heap_size());
}
return 0;
}
</pre>
<FONT COLOR=green>
<H3>Interaction with the system malloc</h3>
It is usually best not to mix garbage-collected allocation with the system
<TT>malloc-free</tt>. If you do, you need to be careful not to store
pointers to the garbage-collected heap in memory allocated with the system
<TT>malloc</tt>.
<H3>Other Platforms</h3>
On some other platforms it is necessary to call <TT>GC_INIT()</tt> from the main program,
which is presumed to be part of the main executable, not a dynamic library.
This can never hurt, and is thus generally good practice.
<H3>Threads</h3>
For a multithreaded program some more rules apply:
<UL>
<LI>
Files that either allocate through the GC <I>or make thread-related calls</i>
should first define the macro <TT>GC_THREADS</tt>, and then
include <TT>"gc.h"</tt>. On some platforms this will redefine some
threads primitives, e.g. to let the collector keep track of thread creation.
<LI>
To take advantage of fast thread-local allocation, use the following instead
of including <TT>gc.h</tt>:
<PRE>
#define GC_REDIRECT_TO_LOCAL
#include "gc_local_alloc.h"
</pre>
This will cause GC_MALLOC and GC_MALLOC_ATOMIC to keep per-thread allocation
caches, and greatly reduce the number of lock acquisitions during allocation.
</ul>
<H3>C++</h3>
In the case of C++, you need to be especially careful not to store pointers
to the garbage-collected heap in areas that are not traced by the collector.
The collector includes some <A HREF="gcinterface.html">alternate interfaces</a>
to make that easier.
<H3>Debugging</h3>
Additional debug checks can be performed by defining <TT>GC_DEBUG</tt> before
including <TT>gc.h</tt>. Additional options are available if the collector
is also built with <TT>--enable-full_debug</tt> and all allocations are
performed with <TT>GC_DEBUG</tt> defined.
<H3>What if I can't rewrite/recompile my program?</h3>
You may be able to build the collector with <TT>--enable-redirect-malloc</tt>
and set the <TT>LD_PRELOAD</tt> environment variable to point to the resulting
library, thus replacing the standard <TT>malloc</tt> with its garbage-collected
counterpart. This is rather platform dependent. See the
<A HREF="leak.html">leak detection documentation</a> for some more details.
</font>
<H2>Compiling and linking</h2>
The above application <TT>loop.c</tt> test program can be compiled and linked
with
<PRE>
cc -I/home/xyz/gc/include loop.c /home/xyz/gc/lib/libgc.a -o loop
</pre>
The <TT>-I</tt> option directs the compiler to the right include
directory. In this case, we list the static library
directly on the compile line; the dynamic library could have been
used instead, provided we arranged for the dynamic loader to find
it, e.g. by setting <TT>LD_LIBRARY_PATH</tt>.
<FONT COLOR=green>
<H3>Threads</h3>
On pthread platforms, you will of course also have to link with
<TT>-lpthread</tt>,
and compile with any thread-safety options required by your compiler.
On some platforms, you may also need to link with <TT>-ldl</tt>
or <TT>-lrt</tt>.
Looking at threadlibs.c in the GC build directory
should give you the appropriate
list if a plain <TT>-lpthread</tt> doesn't work.
</font>
<H2>Running the executable</h2>
The executable can of course be run normally, e.g. by typing
<PRE>
./loop
</pre>
The operation of the collector is affected by a number of environment variables.
For example, setting <TT>GC_PRINT_STATS</tt> produces some
GC statistics on stdout.
See <TT>README.environment</tt> in the distribution for details.
</body>
</html>
boehm-gc/gc_cpp.cc deleted 100644 → 0
/*************************************************************************
Copyright (c) 1994 by Xerox Corporation. All rights reserved.
THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
Last modified on Sat Nov 19 19:31:14 PST 1994 by ellis
on Sat Jun 8 15:10:00 PST 1994 by boehm
Permission is hereby granted to copy this code for any purpose,
provided the above notices are retained on all copies.
This implementation module for gc_c++.h provides an implementation of
the global operators "new" and "delete" that calls the Boehm
allocator. All objects allocated by this implementation will be
non-collectable but part of the root set of the collector.
You should ensure (using implementation-dependent techniques) that the
linker finds this module before the library that defines the default
built-in "new" and "delete".
Authors: John R. Ellis and Jesse Hull
**************************************************************************/
/* Boehm, December 20, 1994 7:26 pm PST */
#include "gc_cpp.h"
void* operator new( size_t size ) {
return GC_MALLOC_UNCOLLECTABLE( size );}
void operator delete( void* obj ) {
GC_FREE( obj );}
#ifdef GC_OPERATOR_NEW_ARRAY
void* operator new[]( size_t size ) {
return GC_MALLOC_UNCOLLECTABLE( size );}
void operator delete[]( void* obj ) {
GC_FREE( obj );}
#endif /* GC_OPERATOR_NEW_ARRAY */
#ifdef _MSC_VER
// This new operator is used by VC++ in case of Debug builds !
void* operator new( size_t size,
int ,//nBlockUse,
const char * szFileName,
int nLine )
{
#ifndef GC_DEBUG
return GC_malloc_uncollectable( size );
#else
return GC_debug_malloc_uncollectable(size, szFileName, nLine);
#endif
}
#endif /* _MSC_VER */
boehm-gc/gc_cpp.cpp deleted 100644 → 0
// Visual C++ seems to prefer a .cpp extension to .cc
#include "gc_cpp.cc"
boehm-gc/gc_dlopen.c deleted 100644 → 0
/*
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
* Copyright (c) 1997 by Silicon Graphics. All rights reserved.
* Copyright (c) 2000 by Hewlett-Packard Company. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*
* Original author: Bill Janssen
* Heavily modified by Hans Boehm and others
*/
/*
* This used to be in dyn_load.c. It was extracted into a separate file
* to avoid having to link against libdl.{a,so} if the client doesn't call
* dlopen. Of course this fails if the collector is in a dynamic
* library. -HB
*/
#include "private/gc_priv.h"
# if (defined(GC_PTHREADS) && !defined(GC_DARWIN_THREADS)) \
|| defined(GC_SOLARIS_THREADS)
# if defined(dlopen) && !defined(GC_USE_LD_WRAP)
/* To support various threads pkgs, gc.h interposes on dlopen by */
/* defining "dlopen" to be "GC_dlopen", which is implemented below. */
/* However, both GC_FirstDLOpenedLinkMap() and GC_dlopen() use the */
/* real system dlopen() in their implementation. We first remove */
/* gc.h's dlopen definition and restore it later, after GC_dlopen(). */
# undef dlopen
# endif
/* Make sure we're not in the middle of a collection, and make */
/* sure we don't start any. Returns previous value of GC_dont_gc. */
/* This is invoked prior to a dlopen call to avoid synchronization */
/* issues. We can't just acquire the allocation lock, since startup */
/* code in dlopen may try to allocate. */
/* This solution risks heap growth in the presence of many dlopen */
/* calls in either a multithreaded environment, or if the library */
/* initialization code allocates substantial amounts of GC'ed memory. */
/* But I don't know of a better solution. */
static void disable_gc_for_dlopen()
{
LOCK();
while (GC_incremental && GC_collection_in_progress()) {
GC_collect_a_little_inner(1000);
}
++GC_dont_gc;
UNLOCK();
}
/* Redefine dlopen to guarantee mutual exclusion with */
/* GC_register_dynamic_libraries. */
/* Should probably happen for other operating systems, too. */
#include <dlfcn.h>
#ifdef GC_USE_LD_WRAP
void * __wrap_dlopen(const char *path, int mode)
#else
void * GC_dlopen(path, mode)
GC_CONST char * path;
int mode;
#endif
{
void * result;
# ifndef USE_PROC_FOR_LIBRARIES
disable_gc_for_dlopen();
# endif
# ifdef GC_USE_LD_WRAP
result = (void *)__real_dlopen(path, mode);
# else
result = dlopen(path, mode);
# endif
# ifndef USE_PROC_FOR_LIBRARIES
GC_enable(); /* undoes disable_gc_for_dlopen */
# endif
return(result);
}
# endif /* GC_PTHREADS || GC_SOLARIS_THREADS ... */
boehm-gc/gcj_mlc.c deleted 100644 → 0
/*
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
* Copyright (c) 1999 by Hewlett-Packard Company. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*
*/
/* Boehm, July 31, 1995 5:02 pm PDT */
/*
* This is an allocator interface tuned for gcj (the GNU static
* java compiler).
*
* Each allocated object has a pointer in its first word to a vtable,
* which for our purposes is simply a structure describing the type of
* the object.
* This descriptor structure contains a GC marking descriptor at offset
* MARK_DESCR_OFFSET.
*
* It is hoped that this interface may also be useful for other systems,
* possibly with some tuning of the constants. But the immediate goal
* is to get better gcj performance.
*
* We assume:
* 1) We have an ANSI conforming C compiler.
* 2) Counting on explicit initialization of this interface is OK.
* 3) FASTLOCK is not a significant win.
*/
#include "private/gc_pmark.h"
#include "gc_gcj.h"
#include "private/dbg_mlc.h"
#ifdef GC_GCJ_SUPPORT
GC_bool GC_gcj_malloc_initialized = FALSE;
int GC_gcj_kind; /* Object kind for objects with descriptors */
/* in "vtable". */
int GC_gcj_debug_kind; /* The kind of objects that is always marked */
/* with a mark proc call. */
ptr_t * GC_gcjobjfreelist;
ptr_t * GC_gcjdebugobjfreelist;
/* Caller does not hold allocation lock. */
void GC_init_gcj_malloc(int mp_index, void * /* really GC_mark_proc */mp)
{
register int i;
GC_bool ignore_gcj_info;
DCL_LOCK_STATE;
GC_init(); /* In case it's not already done. */
DISABLE_SIGNALS();
LOCK();
if (GC_gcj_malloc_initialized) {
UNLOCK();
ENABLE_SIGNALS();
return;
}
GC_gcj_malloc_initialized = TRUE;
ignore_gcj_info = (0 != GETENV("GC_IGNORE_GCJ_INFO"));
# ifdef CONDPRINT
if (GC_print_stats && ignore_gcj_info) {
GC_printf0("Gcj-style type information is disabled!\n");
}
# endif
GC_ASSERT(GC_mark_procs[mp_index] == (GC_mark_proc)0); /* unused */
GC_mark_procs[mp_index] = (GC_mark_proc)mp;
if (mp_index >= GC_n_mark_procs) ABORT("GC_init_gcj_malloc: bad index");
/* Set up object kind gcj-style indirect descriptor. */
GC_gcjobjfreelist = (ptr_t *)GC_new_free_list_inner();
if (ignore_gcj_info) {
/* Use a simple length-based descriptor, thus forcing a fully */
/* conservative scan. */
GC_gcj_kind = GC_new_kind_inner((void **)GC_gcjobjfreelist,
(0 | GC_DS_LENGTH),
TRUE, TRUE);
} else {
GC_gcj_kind = GC_new_kind_inner(
(void **)GC_gcjobjfreelist,
(((word)(-MARK_DESCR_OFFSET - GC_INDIR_PER_OBJ_BIAS))
| GC_DS_PER_OBJECT),
FALSE, TRUE);
}
/* Set up object kind for objects that require mark proc call. */
if (ignore_gcj_info) {
GC_gcj_debug_kind = GC_gcj_kind;
GC_gcjdebugobjfreelist = GC_gcjobjfreelist;
} else {
GC_gcjdebugobjfreelist = (ptr_t *)GC_new_free_list_inner();
GC_gcj_debug_kind = GC_new_kind_inner(
(void **)GC_gcjdebugobjfreelist,
GC_MAKE_PROC(mp_index,
1 /* allocated with debug info */),
FALSE, TRUE);
}
UNLOCK();
ENABLE_SIGNALS();
}
ptr_t GC_clear_stack();
#define GENERAL_MALLOC(lb,k) \
(GC_PTR)GC_clear_stack(GC_generic_malloc_inner((word)lb, k))
#define GENERAL_MALLOC_IOP(lb,k) \
(GC_PTR)GC_clear_stack(GC_generic_malloc_inner_ignore_off_page(lb, k))
/* We need a mechanism to release the lock and invoke finalizers. */
/* We don't really have an opportunity to do this on a rarely executed */
/* path on which the lock is not held. Thus we check at a */
/* rarely executed point at which it is safe to release the lock. */
/* We do this even where we could just call GC_INVOKE_FINALIZERS, */
/* since it's probably cheaper and certainly more uniform. */
/* FIXME - Consider doing the same elsewhere? */
static void maybe_finalize()
{
static int last_finalized_no = 0;
if (GC_gc_no == last_finalized_no) return;
if (!GC_is_initialized) return;
UNLOCK();
GC_INVOKE_FINALIZERS();
last_finalized_no = GC_gc_no;
LOCK();
}
/* Allocate an object, clear it, and store the pointer to the */
/* type structure (vtable in gcj). */
/* This adds a byte at the end of the object if GC_malloc would.*/
void * GC_gcj_malloc(size_t lb, void * ptr_to_struct_containing_descr)
{
register ptr_t op;
register ptr_t * opp;
register word lw;
DCL_LOCK_STATE;
if( EXPECT(SMALL_OBJ(lb), 1) ) {
# ifdef MERGE_SIZES
lw = GC_size_map[lb];
# else
lw = ALIGNED_WORDS(lb);
# endif
opp = &(GC_gcjobjfreelist[lw]);
LOCK();
op = *opp;
if(EXPECT(op == 0, 0)) {
maybe_finalize();
op = (ptr_t)GENERAL_MALLOC((word)lb, GC_gcj_kind);
if (0 == op) {
UNLOCK();
return(GC_oom_fn(lb));
}
# ifdef MERGE_SIZES
lw = GC_size_map[lb]; /* May have been uninitialized. */
# endif
} else {
*opp = obj_link(op);
GC_words_allocd += lw;
}
*(void **)op = ptr_to_struct_containing_descr;
GC_ASSERT(((void **)op)[1] == 0);
UNLOCK();
} else {
LOCK();
maybe_finalize();
op = (ptr_t)GENERAL_MALLOC((word)lb, GC_gcj_kind);
if (0 == op) {
UNLOCK();
return(GC_oom_fn(lb));
}
*(void **)op = ptr_to_struct_containing_descr;
UNLOCK();
}
return((GC_PTR) op);
}
/* Similar to GC_gcj_malloc, but add debug info. This is allocated */
/* with GC_gcj_debug_kind. */
GC_PTR GC_debug_gcj_malloc(size_t lb, void * ptr_to_struct_containing_descr,
GC_EXTRA_PARAMS)
{
GC_PTR result;
/* We're careful to avoid extra calls, which could */
/* confuse the backtrace. */
LOCK();
maybe_finalize();
result = GC_generic_malloc_inner(lb + DEBUG_BYTES, GC_gcj_debug_kind);
if (result == 0) {
UNLOCK();
GC_err_printf2("GC_debug_gcj_malloc(%ld, 0x%lx) returning NIL (",
(unsigned long) lb,
(unsigned long) ptr_to_struct_containing_descr);
GC_err_puts(s);
GC_err_printf1(":%ld)\n", (unsigned long)i);
return(GC_oom_fn(lb));
}
*((void **)((ptr_t)result + sizeof(oh))) = ptr_to_struct_containing_descr;
UNLOCK();
if (!GC_debugging_started) {
GC_start_debugging();
}
ADD_CALL_CHAIN(result, ra);
return (GC_store_debug_info(result, (word)lb, s, (word)i));
}
/* Similar to GC_gcj_malloc, but the size is in words, and we don't */
/* adjust it. The size is assumed to be such that it can be */
/* allocated as a small object. */
void * GC_gcj_fast_malloc(size_t lw, void * ptr_to_struct_containing_descr)
{
ptr_t op;
ptr_t * opp;
DCL_LOCK_STATE;
opp = &(GC_gcjobjfreelist[lw]);
LOCK();
op = *opp;
if( EXPECT(op == 0, 0) ) {
maybe_finalize();
op = (ptr_t)GC_clear_stack(
GC_generic_malloc_words_small_inner(lw, GC_gcj_kind));
if (0 == op) {
UNLOCK();
return GC_oom_fn(WORDS_TO_BYTES(lw));
}
} else {
*opp = obj_link(op);
GC_words_allocd += lw;
}
*(void **)op = ptr_to_struct_containing_descr;
UNLOCK();
return((GC_PTR) op);
}
/* And a debugging version of the above: */
void * GC_debug_gcj_fast_malloc(size_t lw,
void * ptr_to_struct_containing_descr,
GC_EXTRA_PARAMS)
{
GC_PTR result;
size_t lb = WORDS_TO_BYTES(lw);
/* We clone the code from GC_debug_gcj_malloc, so that we */
/* dont end up with extra frames on the stack, which could */
/* confuse the backtrace. */
LOCK();
maybe_finalize();
result = GC_generic_malloc_inner(lb + DEBUG_BYTES, GC_gcj_debug_kind);
if (result == 0) {
UNLOCK();
GC_err_printf2("GC_debug_gcj_fast_malloc(%ld, 0x%lx) returning NIL (",
(unsigned long) lw,
(unsigned long) ptr_to_struct_containing_descr);
GC_err_puts(s);
GC_err_printf1(":%ld)\n", (unsigned long)i);
return GC_oom_fn(WORDS_TO_BYTES(lw));
}
*((void **)((ptr_t)result + sizeof(oh))) = ptr_to_struct_containing_descr;
UNLOCK();
if (!GC_debugging_started) {
GC_start_debugging();
}
ADD_CALL_CHAIN(result, ra);
return (GC_store_debug_info(result, (word)lb, s, (word)i));
}
void * GC_gcj_malloc_ignore_off_page(size_t lb,
void * ptr_to_struct_containing_descr)
{
register ptr_t op;
register ptr_t * opp;
register word lw;
DCL_LOCK_STATE;
if( SMALL_OBJ(lb) ) {
# ifdef MERGE_SIZES
lw = GC_size_map[lb];
# else
lw = ALIGNED_WORDS(lb);
# endif
opp = &(GC_gcjobjfreelist[lw]);
LOCK();
if( (op = *opp) == 0 ) {
maybe_finalize();
op = (ptr_t)GENERAL_MALLOC_IOP(lb, GC_gcj_kind);
# ifdef MERGE_SIZES
lw = GC_size_map[lb]; /* May have been uninitialized. */
# endif
} else {
*opp = obj_link(op);
GC_words_allocd += lw;
}
*(void **)op = ptr_to_struct_containing_descr;
UNLOCK();
} else {
LOCK();
maybe_finalize();
op = (ptr_t)GENERAL_MALLOC_IOP(lb, GC_gcj_kind);
if (0 != op) {
*(void **)op = ptr_to_struct_containing_descr;
}
UNLOCK();
}
return((GC_PTR) op);
}
#else
char GC_no_gcj_support;
#endif /* GC_GCJ_SUPPORT */
boehm-gc/os_dep.c deleted 100644 → 0
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config/pkg.m4 0 → 100644
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