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Commit 4acab94b by Alexandre Oliva Committed by Alexandre Oliva
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aclocal.m4 (AC_FUNC_MMAP_ZERO): New macro. 

* aclocal.m4 (AC_FUNC_MMAP_ZERO): New macro.
* configure.in (AC_FUNC_MMAP_ZERO): Use instead of AC_FUNC_MMAP.
* ggc-page.c: Replace HAVE_MMAP with HAVE_MMAP_ZERO.
* configure, config.in: Rebuilt.

From-SVN: r31444
parent 08439bec
Showing with 499 additions and 210 deletions
gcc/ChangeLog
2000-01-16 Alexandre Oliva <oliva@lsd.ic.unicamp.br>
* aclocal.m4 (AC_FUNC_MMAP_ZERO): New macro.
* configure.in (AC_FUNC_MMAP_ZERO): Use instead of AC_FUNC_MMAP.
* ggc-page.c: Replace HAVE_MMAP with HAVE_MMAP_ZERO.
* configure, config.in: Rebuilt.
2000-01-16 Zack Weinberg <zack@wolery.cumb.org>
* config/i386/i386.md: Add peephole to merge successive stack
......
gcc/aclocal.m4
......@@ -680,3 +680,85 @@ else
fi
AC_SUBST($1)dnl
])
# Check whether mmap can map an arbitrary page from /dev/zero, without
# MAP_FIXED.
AC_DEFUN([AC_FUNC_MMAP_ANYWHERE],
[AC_CHECK_HEADERS(unistd.h)
AC_CHECK_FUNCS(getpagesize)
AC_CACHE_CHECK(for working mmap from /dev/zero, ac_cv_func_mmap_zero,
[AC_TRY_RUN([
/* Test by Richard Henderson and Alexandre Oliva.
Check whether mmap from /dev/zero works. */
#include <sys/types.h>
#include <fcntl.h>
#include <sys/mman.h>
/* This mess was copied from the GNU getpagesize.h. */
#ifndef HAVE_GETPAGESIZE
# ifdef HAVE_UNISTD_H
# include <unistd.h>
# endif
/* Assume that all systems that can run configure have sys/param.h. */
# ifndef HAVE_SYS_PARAM_H
# define HAVE_SYS_PARAM_H 1
# endif
# ifdef _SC_PAGESIZE
# define getpagesize() sysconf(_SC_PAGESIZE)
# else /* no _SC_PAGESIZE */
# ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
# ifdef EXEC_PAGESIZE
# define getpagesize() EXEC_PAGESIZE
# else /* no EXEC_PAGESIZE */
# ifdef NBPG
# define getpagesize() NBPG * CLSIZE
# ifndef CLSIZE
# define CLSIZE 1
# endif /* no CLSIZE */
# else /* no NBPG */
# ifdef NBPC
# define getpagesize() NBPC
# else /* no NBPC */
# ifdef PAGESIZE
# define getpagesize() PAGESIZE
# endif /* PAGESIZE */
# endif /* no NBPC */
# endif /* no NBPG */
# endif /* no EXEC_PAGESIZE */
# else /* no HAVE_SYS_PARAM_H */
# define getpagesize() 8192 /* punt totally */
# endif /* no HAVE_SYS_PARAM_H */
# endif /* no _SC_PAGESIZE */
#endif /* no HAVE_GETPAGESIZE */
int main()
{
char *x;
int fd, pg;
fd = open("/dev/zero", O_RDWR);
if (fd < 0)
exit(1);
pg = getpagesize();
x = (char*)mmap(0, pg, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
if (x == (char *) -1)
exit(2);
*(int *)x += 1;
if (munmap(x, pg) < 0)
exit(3);
exit(0);
}], ac_cv_func_mmap_anywhere=yes, ac_cv_func_mmap_anywhere=no,
ac_cv_func_mmap_anywhere=no)])
if test $ac_cv_func_mmap_anywhere = yes; then
AC_DEFINE(HAVE_MMAP_ANYWHERE, 1,
[Define if mmap can get us zeroed pages from /dev/zero.])
fi
])
gcc/config.in
......@@ -415,3 +415,7 @@
/* Define if you have the i library (-li). */
#undef HAVE_LIBI
/* Define if mmap can get us zeroed pages from /dev/zero. */
#undef HAVE_MMAP_ANYWHERE
gcc/configure
......@@ -1383,7 +1383,7 @@ else
fi
# Find some useful tools
for ac_prog in gawk mawk nawk awk
for ac_prog in mawk gawk nawk awk
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
......@@ -2805,39 +2805,20 @@ else
fi
done
echo $ac_n "checking for working mmap""... $ac_c" 1>&6
echo "configure:2810: checking for working mmap" >&5
if eval "test \"`echo '$''{'ac_cv_func_mmap_fixed_mapped'+set}'`\" = set"; then
echo $ac_n "checking for working mmap from /dev/zero""... $ac_c" 1>&6
echo "configure:2810: checking for working mmap from /dev/zero" >&5
if eval "test \"`echo '$''{'ac_cv_func_mmap_zero'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test "$cross_compiling" = yes; then
ac_cv_func_mmap_fixed_mapped=no
ac_cv_func_mmap_anywhere=no
else
cat > conftest.$ac_ext <<EOF
#line 2818 "configure"
#include "confdefs.h"
/* Thanks to Mike Haertel and Jim Avera for this test.
Here is a matrix of mmap possibilities:
mmap private not fixed
mmap private fixed at somewhere currently unmapped
mmap private fixed at somewhere already mapped
mmap shared not fixed
mmap shared fixed at somewhere currently unmapped
mmap shared fixed at somewhere already mapped
For private mappings, we should verify that changes cannot be read()
back from the file, nor mmap's back from the file at a different
address. (There have been systems where private was not correctly
implemented like the infamous i386 svr4.0, and systems where the
VM page cache was not coherent with the filesystem buffer cache
like early versions of FreeBSD and possibly contemporary NetBSD.)
For shared mappings, we should conversely verify that changes get
propogated back to all the places they're supposed to be.
Grep wants private fixed already mapped.
The main things grep needs to know about mmap are:
* does it exist and is it safe to write into the mmap'd area
* how to use it (BSD variants) */
/* Test by Richard Henderson and Alexandre Oliva.
Check whether mmap from /dev/zero works. */
#include <sys/types.h>
#include <fcntl.h>
#include <sys/mman.h>
......@@ -2883,95 +2864,46 @@ else
#endif /* no HAVE_GETPAGESIZE */
#ifdef __cplusplus
extern "C" { void *malloc(unsigned); }
#else
char *malloc();
#endif
int
main()
int main()
{
char *data, *data2, *data3;
int i, pagesize;
int fd;
pagesize = getpagesize();
char *x;
int fd, pg;
/*
* First, make a file with some known garbage in it.
*/
data = malloc(pagesize);
if (!data)
exit(1);
for (i = 0; i < pagesize; ++i)
*(data + i) = rand();
umask(0);
fd = creat("conftestmmap", 0600);
fd = open("/dev/zero", O_RDWR);
if (fd < 0)
exit(1);
if (write(fd, data, pagesize) != pagesize)
exit(1);
close(fd);
/*
* Next, try to mmap the file at a fixed address which
* already has something else allocated at it. If we can,
* also make sure that we see the same garbage.
*/
fd = open("conftestmmap", O_RDWR);
if (fd < 0)
exit(1);
data2 = malloc(2 * pagesize);
if (!data2)
exit(1);
data2 += (pagesize - ((int) data2 & (pagesize - 1))) & (pagesize - 1);
if (data2 != mmap(data2, pagesize, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_FIXED, fd, 0L))
exit(1);
for (i = 0; i < pagesize; ++i)
if (*(data + i) != *(data2 + i))
exit(1);
pg = getpagesize();
x = (char*)mmap(0, pg, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
if (x == (char *) -1)
exit(2);
*(int *)x += 1;
if (munmap(x, pg) < 0)
exit(3);
/*
* Finally, make sure that changes to the mapped area
* do not percolate back to the file as seen by read().
* (This is a bug on some variants of i386 svr4.0.)
*/
for (i = 0; i < pagesize; ++i)
*(data2 + i) = *(data2 + i) + 1;
data3 = malloc(pagesize);
if (!data3)
exit(1);
if (read(fd, data3, pagesize) != pagesize)
exit(1);
for (i = 0; i < pagesize; ++i)
if (*(data + i) != *(data3 + i))
exit(1);
close(fd);
unlink("conftestmmap");
exit(0);
}
EOF
if { (eval echo configure:2958: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
if { (eval echo configure:2890: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
then
ac_cv_func_mmap_fixed_mapped=yes
ac_cv_func_mmap_anywhere=yes
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
rm -fr conftest*
ac_cv_func_mmap_fixed_mapped=no
ac_cv_func_mmap_anywhere=no
fi
rm -fr conftest*
fi
fi
echo "$ac_t""$ac_cv_func_mmap_fixed_mapped" 1>&6
if test $ac_cv_func_mmap_fixed_mapped = yes; then
echo "$ac_t""$ac_cv_func_mmap_zero" 1>&6
if test $ac_cv_func_mmap_anywhere = yes; then
cat >> confdefs.h <<\EOF
#define HAVE_MMAP 1
#define HAVE_MMAP_ANYWHERE 1
EOF
fi
......@@ -2982,12 +2914,12 @@ for ac_func in bcopy bzero bcmp \
strsignal putc_unlocked fputs_unlocked strstr environ
do
echo $ac_n "checking whether $ac_func must be declared""... $ac_c" 1>&6
echo "configure:2986: checking whether $ac_func must be declared" >&5
echo "configure:2918: checking whether $ac_func must be declared" >&5
if eval "test \"`echo '$''{'gcc_cv_decl_needed_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 2991 "configure"
#line 2923 "configure"
#include "confdefs.h"
#include <stdio.h>
......@@ -3024,7 +2956,7 @@ int main() {
char *(*pfn) = (char *(*)) $ac_func
; return 0; }
EOF
if { (eval echo configure:3028: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:2960: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
eval "gcc_cv_decl_needed_$ac_func=no"
else
......@@ -3053,12 +2985,12 @@ done
for ac_func in malloc realloc calloc free
do
echo $ac_n "checking whether $ac_func must be declared""... $ac_c" 1>&6
echo "configure:3057: checking whether $ac_func must be declared" >&5
echo "configure:2989: checking whether $ac_func must be declared" >&5
if eval "test \"`echo '$''{'gcc_cv_decl_needed_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 3062 "configure"
#line 2994 "configure"
#include "confdefs.h"
#include <stdio.h>
......@@ -3098,7 +3030,7 @@ int main() {
char *(*pfn) = (char *(*)) $ac_func
; return 0; }
EOF
if { (eval echo configure:3102: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:3034: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
eval "gcc_cv_decl_needed_$ac_func=no"
else
......@@ -3127,12 +3059,12 @@ done
for ac_func in getrlimit setrlimit getrusage
do
echo $ac_n "checking whether $ac_func must be declared""... $ac_c" 1>&6
echo "configure:3131: checking whether $ac_func must be declared" >&5
echo "configure:3063: checking whether $ac_func must be declared" >&5
if eval "test \"`echo '$''{'gcc_cv_decl_needed_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 3136 "configure"
#line 3068 "configure"
#include "confdefs.h"
#include <stdio.h>
......@@ -3173,7 +3105,7 @@ int main() {
char *(*pfn) = (char *(*)) $ac_func
; return 0; }
EOF
if { (eval echo configure:3177: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:3109: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
eval "gcc_cv_decl_needed_$ac_func=no"
else
......@@ -3201,12 +3133,12 @@ done
# mkdir takes a single argument on some systems.
echo $ac_n "checking if mkdir takes one argument""... $ac_c" 1>&6
echo "configure:3205: checking if mkdir takes one argument" >&5
echo "configure:3137: checking if mkdir takes one argument" >&5
if eval "test \"`echo '$''{'gcc_cv_mkdir_takes_one_arg'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 3210 "configure"
#line 3142 "configure"
#include "confdefs.h"
#include <sys/types.h>
......@@ -3223,7 +3155,7 @@ int main() {
mkdir ("foo", 0);
; return 0; }
EOF
if { (eval echo configure:3227: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:3159: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
gcc_cv_mkdir_takes_one_arg=no
else
......@@ -6718,7 +6650,7 @@ fi
echo $ac_n "checking for strerror in -lcposix""... $ac_c" 1>&6
echo "configure:6722: checking for strerror in -lcposix" >&5
echo "configure:6654: checking for strerror in -lcposix" >&5
ac_lib_var=`echo cposix'_'strerror | sed 'y%./+-%__p_%'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
......@@ -6726,7 +6658,7 @@ else
ac_save_LIBS="$LIBS"
LIBS="-lcposix $LIBS"
cat > conftest.$ac_ext <<EOF
#line 6730 "configure"
#line 6662 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error. */
/* We use char because int might match the return type of a gcc2
......@@ -6737,7 +6669,7 @@ int main() {
strerror()
; return 0; }
EOF
if { (eval echo configure:6741: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:6673: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_lib_$ac_lib_var=yes"
else
......@@ -6760,12 +6692,12 @@ fi
echo $ac_n "checking for working const""... $ac_c" 1>&6
echo "configure:6764: checking for working const" >&5
echo "configure:6696: checking for working const" >&5
if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 6769 "configure"
#line 6701 "configure"
#include "confdefs.h"
int main() {
......@@ -6814,7 +6746,7 @@ ccp = (char const *const *) p;
; return 0; }
EOF
if { (eval echo configure:6818: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:6750: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
ac_cv_c_const=yes
else
......@@ -6835,21 +6767,21 @@ EOF
fi
echo $ac_n "checking for inline""... $ac_c" 1>&6
echo "configure:6839: checking for inline" >&5
echo "configure:6771: checking for inline" >&5
if eval "test \"`echo '$''{'ac_cv_c_inline'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
ac_cv_c_inline=no
for ac_kw in inline __inline__ __inline; do
cat > conftest.$ac_ext <<EOF
#line 6846 "configure"
#line 6778 "configure"
#include "confdefs.h"
int main() {
} $ac_kw foo() {
; return 0; }
EOF
if { (eval echo configure:6853: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:6785: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
ac_cv_c_inline=$ac_kw; break
else
......@@ -6875,12 +6807,12 @@ EOF
esac
echo $ac_n "checking for off_t""... $ac_c" 1>&6
echo "configure:6879: checking for off_t" >&5
echo "configure:6811: checking for off_t" >&5
if eval "test \"`echo '$''{'ac_cv_type_off_t'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 6884 "configure"
#line 6816 "configure"
#include "confdefs.h"
#include <sys/types.h>
#if STDC_HEADERS
......@@ -6908,12 +6840,12 @@ EOF
fi
echo $ac_n "checking for size_t""... $ac_c" 1>&6
echo "configure:6912: checking for size_t" >&5
echo "configure:6844: checking for size_t" >&5
if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 6917 "configure"
#line 6849 "configure"
#include "confdefs.h"
#include <sys/types.h>
#if STDC_HEADERS
......@@ -6943,19 +6875,19 @@ fi
# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
# for constant arguments. Useless!
echo $ac_n "checking for working alloca.h""... $ac_c" 1>&6
echo "configure:6947: checking for working alloca.h" >&5
echo "configure:6879: checking for working alloca.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 6952 "configure"
#line 6884 "configure"
#include "confdefs.h"
#include <alloca.h>
int main() {
char *p = alloca(2 * sizeof(int));
; return 0; }
EOF
if { (eval echo configure:6959: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:6891: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
ac_cv_header_alloca_h=yes
else
......@@ -6976,12 +6908,12 @@ EOF
fi
echo $ac_n "checking for alloca""... $ac_c" 1>&6
echo "configure:6980: checking for alloca" >&5
echo "configure:6912: checking for alloca" >&5
if eval "test \"`echo '$''{'ac_cv_func_alloca_works'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 6985 "configure"
#line 6917 "configure"
#include "confdefs.h"
#ifdef __GNUC__
......@@ -7009,7 +6941,7 @@ int main() {
char *p = (char *) alloca(1);
; return 0; }
EOF
if { (eval echo configure:7013: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:6945: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
ac_cv_func_alloca_works=yes
else
......@@ -7041,12 +6973,12 @@ EOF
echo $ac_n "checking whether alloca needs Cray hooks""... $ac_c" 1>&6
echo "configure:7045: checking whether alloca needs Cray hooks" >&5
echo "configure:6977: checking whether alloca needs Cray hooks" >&5
if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7050 "configure"
#line 6982 "configure"
#include "confdefs.h"
#if defined(CRAY) && ! defined(CRAY2)
webecray
......@@ -7071,12 +7003,12 @@ echo "$ac_t""$ac_cv_os_cray" 1>&6
if test $ac_cv_os_cray = yes; then
for ac_func in _getb67 GETB67 getb67; do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:7075: checking for $ac_func" >&5
echo "configure:7007: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7080 "configure"
#line 7012 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $ac_func(); below. */
......@@ -7099,7 +7031,7 @@ $ac_func();
; return 0; }
EOF
if { (eval echo configure:7103: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7035: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_func_$ac_func=yes"
else
......@@ -7126,7 +7058,7 @@ done
fi
echo $ac_n "checking stack direction for C alloca""... $ac_c" 1>&6
echo "configure:7130: checking stack direction for C alloca" >&5
echo "configure:7062: checking stack direction for C alloca" >&5
if eval "test \"`echo '$''{'ac_cv_c_stack_direction'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -7134,7 +7066,7 @@ else
ac_cv_c_stack_direction=0
else
cat > conftest.$ac_ext <<EOF
#line 7138 "configure"
#line 7070 "configure"
#include "confdefs.h"
find_stack_direction ()
{
......@@ -7153,7 +7085,7 @@ main ()
exit (find_stack_direction() < 0);
}
EOF
if { (eval echo configure:7157: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
if { (eval echo configure:7089: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
then
ac_cv_c_stack_direction=1
else
......@@ -7174,23 +7106,289 @@ EOF
fi
for ac_hdr in unistd.h
do
ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
echo "configure:7114: checking for $ac_hdr" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7119 "configure"
#include "confdefs.h"
#include <$ac_hdr>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:7124: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
rm -rf conftest*
eval "ac_cv_header_$ac_safe=yes"
else
echo "$ac_err" >&5
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
rm -rf conftest*
eval "ac_cv_header_$ac_safe=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
echo "$ac_t""yes" 1>&6
ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
cat >> confdefs.h <<EOF
#define $ac_tr_hdr 1
EOF
else
echo "$ac_t""no" 1>&6
fi
done
for ac_func in getpagesize
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:7153: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7158 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $ac_func(); below. */
#include <assert.h>
/* Override any gcc2 internal prototype to avoid an error. */
/* We use char because int might match the return type of a gcc2
builtin and then its argument prototype would still apply. */
char $ac_func();
int main() {
/* The GNU C library defines this for functions which it implements
to always fail with ENOSYS. Some functions are actually named
something starting with __ and the normal name is an alias. */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
$ac_func();
#endif
; return 0; }
EOF
if { (eval echo configure:7181: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_func_$ac_func=yes"
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
rm -rf conftest*
eval "ac_cv_func_$ac_func=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
echo "$ac_t""yes" 1>&6
ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
cat >> confdefs.h <<EOF
#define $ac_tr_func 1
EOF
else
echo "$ac_t""no" 1>&6
fi
done
echo $ac_n "checking for working mmap""... $ac_c" 1>&6
echo "configure:7206: checking for working mmap" >&5
if eval "test \"`echo '$''{'ac_cv_func_mmap_fixed_mapped'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test "$cross_compiling" = yes; then
ac_cv_func_mmap_fixed_mapped=no
else
cat > conftest.$ac_ext <<EOF
#line 7214 "configure"
#include "confdefs.h"
/* Thanks to Mike Haertel and Jim Avera for this test.
Here is a matrix of mmap possibilities:
mmap private not fixed
mmap private fixed at somewhere currently unmapped
mmap private fixed at somewhere already mapped
mmap shared not fixed
mmap shared fixed at somewhere currently unmapped
mmap shared fixed at somewhere already mapped
For private mappings, we should verify that changes cannot be read()
back from the file, nor mmap's back from the file at a different
address. (There have been systems where private was not correctly
implemented like the infamous i386 svr4.0, and systems where the
VM page cache was not coherent with the filesystem buffer cache
like early versions of FreeBSD and possibly contemporary NetBSD.)
For shared mappings, we should conversely verify that changes get
propogated back to all the places they're supposed to be.
Grep wants private fixed already mapped.
The main things grep needs to know about mmap are:
* does it exist and is it safe to write into the mmap'd area
* how to use it (BSD variants) */
#include <sys/types.h>
#include <fcntl.h>
#include <sys/mman.h>
/* This mess was copied from the GNU getpagesize.h. */
#ifndef HAVE_GETPAGESIZE
# ifdef HAVE_UNISTD_H
# include <unistd.h>
# endif
/* Assume that all systems that can run configure have sys/param.h. */
# ifndef HAVE_SYS_PARAM_H
# define HAVE_SYS_PARAM_H 1
# endif
# ifdef _SC_PAGESIZE
# define getpagesize() sysconf(_SC_PAGESIZE)
# else /* no _SC_PAGESIZE */
# ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
# ifdef EXEC_PAGESIZE
# define getpagesize() EXEC_PAGESIZE
# else /* no EXEC_PAGESIZE */
# ifdef NBPG
# define getpagesize() NBPG * CLSIZE
# ifndef CLSIZE
# define CLSIZE 1
# endif /* no CLSIZE */
# else /* no NBPG */
# ifdef NBPC
# define getpagesize() NBPC
# else /* no NBPC */
# ifdef PAGESIZE
# define getpagesize() PAGESIZE
# endif /* PAGESIZE */
# endif /* no NBPC */
# endif /* no NBPG */
# endif /* no EXEC_PAGESIZE */
# else /* no HAVE_SYS_PARAM_H */
# define getpagesize() 8192 /* punt totally */
# endif /* no HAVE_SYS_PARAM_H */
# endif /* no _SC_PAGESIZE */
#endif /* no HAVE_GETPAGESIZE */
#ifdef __cplusplus
extern "C" { void *malloc(unsigned); }
#else
char *malloc();
#endif
int
main()
{
char *data, *data2, *data3;
int i, pagesize;
int fd;
pagesize = getpagesize();
/*
* First, make a file with some known garbage in it.
*/
data = malloc(pagesize);
if (!data)
exit(1);
for (i = 0; i < pagesize; ++i)
*(data + i) = rand();
umask(0);
fd = creat("conftestmmap", 0600);
if (fd < 0)
exit(1);
if (write(fd, data, pagesize) != pagesize)
exit(1);
close(fd);
/*
* Next, try to mmap the file at a fixed address which
* already has something else allocated at it. If we can,
* also make sure that we see the same garbage.
*/
fd = open("conftestmmap", O_RDWR);
if (fd < 0)
exit(1);
data2 = malloc(2 * pagesize);
if (!data2)
exit(1);
data2 += (pagesize - ((int) data2 & (pagesize - 1))) & (pagesize - 1);
if (data2 != mmap(data2, pagesize, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_FIXED, fd, 0L))
exit(1);
for (i = 0; i < pagesize; ++i)
if (*(data + i) != *(data2 + i))
exit(1);
/*
* Finally, make sure that changes to the mapped area
* do not percolate back to the file as seen by read().
* (This is a bug on some variants of i386 svr4.0.)
*/
for (i = 0; i < pagesize; ++i)
*(data2 + i) = *(data2 + i) + 1;
data3 = malloc(pagesize);
if (!data3)
exit(1);
if (read(fd, data3, pagesize) != pagesize)
exit(1);
for (i = 0; i < pagesize; ++i)
if (*(data + i) != *(data3 + i))
exit(1);
close(fd);
unlink("conftestmmap");
exit(0);
}
EOF
if { (eval echo configure:7354: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
then
ac_cv_func_mmap_fixed_mapped=yes
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
rm -fr conftest*
ac_cv_func_mmap_fixed_mapped=no
fi
rm -fr conftest*
fi
fi
echo "$ac_t""$ac_cv_func_mmap_fixed_mapped" 1>&6
if test $ac_cv_func_mmap_fixed_mapped = yes; then
cat >> confdefs.h <<\EOF
#define HAVE_MMAP 1
EOF
fi
for ac_hdr in argz.h limits.h locale.h nl_types.h malloc.h string.h \
unistd.h sys/param.h
do
ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
echo "configure:7184: checking for $ac_hdr" >&5
echo "configure:7382: checking for $ac_hdr" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7189 "configure"
#line 7387 "configure"
#include "confdefs.h"
#include <$ac_hdr>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:7194: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:7392: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
rm -rf conftest*
......@@ -7220,12 +7418,12 @@ done
strdup __argz_count __argz_stringify __argz_next
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:7224: checking for $ac_func" >&5
echo "configure:7422: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7229 "configure"
#line 7427 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $ac_func(); below. */
......@@ -7248,7 +7446,7 @@ $ac_func();
; return 0; }
EOF
if { (eval echo configure:7252: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7450: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_func_$ac_func=yes"
else
......@@ -7277,12 +7475,12 @@ done
for ac_func in stpcpy
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:7281: checking for $ac_func" >&5
echo "configure:7479: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7286 "configure"
#line 7484 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $ac_func(); below. */
......@@ -7305,7 +7503,7 @@ $ac_func();
; return 0; }
EOF
if { (eval echo configure:7309: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7507: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_func_$ac_func=yes"
else
......@@ -7339,19 +7537,19 @@ EOF
if test $ac_cv_header_locale_h = yes; then
echo $ac_n "checking for LC_MESSAGES""... $ac_c" 1>&6
echo "configure:7343: checking for LC_MESSAGES" >&5
echo "configure:7541: checking for LC_MESSAGES" >&5
if eval "test \"`echo '$''{'am_cv_val_LC_MESSAGES'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7348 "configure"
#line 7546 "configure"
#include "confdefs.h"
#include <locale.h>
int main() {
return LC_MESSAGES
; return 0; }
EOF
if { (eval echo configure:7355: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7553: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
am_cv_val_LC_MESSAGES=yes
else
......@@ -7372,7 +7570,7 @@ EOF
fi
fi
echo $ac_n "checking whether NLS is requested""... $ac_c" 1>&6
echo "configure:7376: checking whether NLS is requested" >&5
echo "configure:7574: checking whether NLS is requested" >&5
# Check whether --enable-nls or --disable-nls was given.
if test "${enable_nls+set}" = set; then
enableval="$enable_nls"
......@@ -7392,7 +7590,7 @@ fi
EOF
echo $ac_n "checking whether included gettext is requested""... $ac_c" 1>&6
echo "configure:7396: checking whether included gettext is requested" >&5
echo "configure:7594: checking whether included gettext is requested" >&5
# Check whether --with-included-gettext or --without-included-gettext was given.
if test "${with_included_gettext+set}" = set; then
withval="$with_included_gettext"
......@@ -7411,17 +7609,17 @@ fi
ac_safe=`echo "libintl.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for libintl.h""... $ac_c" 1>&6
echo "configure:7415: checking for libintl.h" >&5
echo "configure:7613: checking for libintl.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7420 "configure"
#line 7618 "configure"
#include "confdefs.h"
#include <libintl.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:7425: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:7623: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
rm -rf conftest*
......@@ -7438,19 +7636,19 @@ fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
echo "$ac_t""yes" 1>&6
echo $ac_n "checking for gettext in libc""... $ac_c" 1>&6
echo "configure:7442: checking for gettext in libc" >&5
echo "configure:7640: checking for gettext in libc" >&5
if eval "test \"`echo '$''{'gt_cv_func_gettext_libc'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7447 "configure"
#line 7645 "configure"
#include "confdefs.h"
#include <libintl.h>
int main() {
return (int) gettext ("")
; return 0; }
EOF
if { (eval echo configure:7454: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7652: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
gt_cv_func_gettext_libc=yes
else
......@@ -7466,7 +7664,7 @@ echo "$ac_t""$gt_cv_func_gettext_libc" 1>&6
if test "$gt_cv_func_gettext_libc" != "yes"; then
echo $ac_n "checking for bindtextdomain in -lintl""... $ac_c" 1>&6
echo "configure:7470: checking for bindtextdomain in -lintl" >&5
echo "configure:7668: checking for bindtextdomain in -lintl" >&5
ac_lib_var=`echo intl'_'bindtextdomain | sed 'y%./+-%__p_%'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
......@@ -7474,7 +7672,7 @@ else
ac_save_LIBS="$LIBS"
LIBS="-lintl $LIBS"
cat > conftest.$ac_ext <<EOF
#line 7478 "configure"
#line 7676 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error. */
/* We use char because int might match the return type of a gcc2
......@@ -7485,7 +7683,7 @@ int main() {
bindtextdomain()
; return 0; }
EOF
if { (eval echo configure:7489: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7687: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_lib_$ac_lib_var=yes"
else
......@@ -7501,12 +7699,12 @@ fi
if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
echo "$ac_t""yes" 1>&6
echo $ac_n "checking for gettext in libintl""... $ac_c" 1>&6
echo "configure:7505: checking for gettext in libintl" >&5
echo "configure:7703: checking for gettext in libintl" >&5
if eval "test \"`echo '$''{'gt_cv_func_gettext_libintl'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
echo $ac_n "checking for gettext in -lintl""... $ac_c" 1>&6
echo "configure:7510: checking for gettext in -lintl" >&5
echo "configure:7708: checking for gettext in -lintl" >&5
ac_lib_var=`echo intl'_'gettext | sed 'y%./+-%__p_%'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
......@@ -7514,7 +7712,7 @@ else
ac_save_LIBS="$LIBS"
LIBS="-lintl $LIBS"
cat > conftest.$ac_ext <<EOF
#line 7518 "configure"
#line 7716 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error. */
/* We use char because int might match the return type of a gcc2
......@@ -7525,7 +7723,7 @@ int main() {
gettext()
; return 0; }
EOF
if { (eval echo configure:7529: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7727: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_lib_$ac_lib_var=yes"
else
......@@ -7564,7 +7762,7 @@ EOF
# Extract the first word of "msgfmt", so it can be a program name with args.
set dummy msgfmt; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:7568: checking for $ac_word" >&5
echo "configure:7766: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_MSGFMT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -7598,12 +7796,12 @@ fi
for ac_func in dcgettext
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:7602: checking for $ac_func" >&5
echo "configure:7800: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7607 "configure"
#line 7805 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $ac_func(); below. */
......@@ -7626,7 +7824,7 @@ $ac_func();
; return 0; }
EOF
if { (eval echo configure:7630: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7828: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_func_$ac_func=yes"
else
......@@ -7653,7 +7851,7 @@ done
# Extract the first word of "gmsgfmt", so it can be a program name with args.
set dummy gmsgfmt; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:7657: checking for $ac_word" >&5
echo "configure:7855: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_GMSGFMT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -7689,7 +7887,7 @@ fi
# Extract the first word of "xgettext", so it can be a program name with args.
set dummy xgettext; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:7693: checking for $ac_word" >&5
echo "configure:7891: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_XGETTEXT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -7721,7 +7919,7 @@ else
fi
cat > conftest.$ac_ext <<EOF
#line 7725 "configure"
#line 7923 "configure"
#include "confdefs.h"
int main() {
......@@ -7729,7 +7927,7 @@ extern int _nl_msg_cat_cntr;
return _nl_msg_cat_cntr
; return 0; }
EOF
if { (eval echo configure:7733: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7931: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
CATOBJEXT=.gmo
DATADIRNAME=share
......@@ -7752,7 +7950,7 @@ fi
if test "$CATOBJEXT" = "NONE"; then
echo $ac_n "checking whether catgets can be used""... $ac_c" 1>&6
echo "configure:7756: checking whether catgets can be used" >&5
echo "configure:7954: checking whether catgets can be used" >&5
# Check whether --with-catgets or --without-catgets was given.
if test "${with_catgets+set}" = set; then
withval="$with_catgets"
......@@ -7765,7 +7963,7 @@ fi
if test "$nls_cv_use_catgets" = "yes"; then
echo $ac_n "checking for main in -li""... $ac_c" 1>&6
echo "configure:7769: checking for main in -li" >&5
echo "configure:7967: checking for main in -li" >&5
ac_lib_var=`echo i'_'main | sed 'y%./+-%__p_%'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
......@@ -7773,14 +7971,14 @@ else
ac_save_LIBS="$LIBS"
LIBS="-li $LIBS"
cat > conftest.$ac_ext <<EOF
#line 7777 "configure"
#line 7975 "configure"
#include "confdefs.h"
int main() {
main()
; return 0; }
EOF
if { (eval echo configure:7784: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:7982: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_lib_$ac_lib_var=yes"
else
......@@ -7808,12 +8006,12 @@ else
fi
echo $ac_n "checking for catgets""... $ac_c" 1>&6
echo "configure:7812: checking for catgets" >&5
echo "configure:8010: checking for catgets" >&5
if eval "test \"`echo '$''{'ac_cv_func_catgets'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 7817 "configure"
#line 8015 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char catgets(); below. */
......@@ -7836,7 +8034,7 @@ catgets();
; return 0; }
EOF
if { (eval echo configure:7840: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:8038: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_func_catgets=yes"
else
......@@ -7858,7 +8056,7 @@ EOF
# Extract the first word of "gencat", so it can be a program name with args.
set dummy gencat; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:7862: checking for $ac_word" >&5
echo "configure:8060: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_GENCAT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -7894,7 +8092,7 @@ fi
# Extract the first word of "gmsgfmt", so it can be a program name with args.
set dummy gmsgfmt; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:7898: checking for $ac_word" >&5
echo "configure:8096: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_GMSGFMT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -7931,7 +8129,7 @@ fi
# Extract the first word of "msgfmt", so it can be a program name with args.
set dummy msgfmt; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:7935: checking for $ac_word" >&5
echo "configure:8133: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_GMSGFMT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -7966,7 +8164,7 @@ fi
# Extract the first word of "xgettext", so it can be a program name with args.
set dummy xgettext; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:7970: checking for $ac_word" >&5
echo "configure:8168: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_XGETTEXT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -8024,7 +8222,7 @@ fi
# Extract the first word of "msgfmt", so it can be a program name with args.
set dummy msgfmt; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:8028: checking for $ac_word" >&5
echo "configure:8226: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_MSGFMT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -8058,7 +8256,7 @@ fi
# Extract the first word of "gmsgfmt", so it can be a program name with args.
set dummy gmsgfmt; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:8062: checking for $ac_word" >&5
echo "configure:8260: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_GMSGFMT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -8094,7 +8292,7 @@ fi
# Extract the first word of "xgettext", so it can be a program name with args.
set dummy xgettext; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:8098: checking for $ac_word" >&5
echo "configure:8296: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_XGETTEXT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -8187,7 +8385,7 @@ fi
LINGUAS=
else
echo $ac_n "checking for catalogs to be installed""... $ac_c" 1>&6
echo "configure:8191: checking for catalogs to be installed" >&5
echo "configure:8389: checking for catalogs to be installed" >&5
NEW_LINGUAS=
for lang in ${LINGUAS=$ALL_LINGUAS}; do
case "$ALL_LINGUAS" in
......@@ -8215,17 +8413,17 @@ echo "configure:8191: checking for catalogs to be installed" >&5
if test "$CATOBJEXT" = ".cat"; then
ac_safe=`echo "linux/version.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for linux/version.h""... $ac_c" 1>&6
echo "configure:8219: checking for linux/version.h" >&5
echo "configure:8417: checking for linux/version.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 8224 "configure"
#line 8422 "configure"
#include "confdefs.h"
#include <linux/version.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:8229: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:8427: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
rm -rf conftest*
......@@ -8300,7 +8498,7 @@ fi
echo $ac_n "checking whether windows registry support is requested""... $ac_c" 1>&6
echo "configure:8304: checking whether windows registry support is requested" >&5
echo "configure:8502: checking whether windows registry support is requested" >&5
if test x$enable_win32_registry != xno; then
cat >> confdefs.h <<\EOF
#define ENABLE_WIN32_REGISTRY 1
......@@ -8329,7 +8527,7 @@ esac
if test x$enable_win32_registry != xno; then
echo $ac_n "checking registry key on windows hosts""... $ac_c" 1>&6
echo "configure:8333: checking registry key on windows hosts" >&5
echo "configure:8531: checking registry key on windows hosts" >&5
cat >> confdefs.h <<EOF
#define WIN32_REGISTRY_KEY "$gcc_cv_win32_registry_key"
EOF
......@@ -8505,7 +8703,7 @@ fi
# Figure out what assembler alignment features are present.
echo $ac_n "checking assembler alignment features""... $ac_c" 1>&6
echo "configure:8509: checking assembler alignment features" >&5
echo "configure:8707: checking assembler alignment features" >&5
gcc_cv_as=
gcc_cv_as_alignment_features=
gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
......@@ -8626,7 +8824,7 @@ fi
echo "$ac_t""$gcc_cv_as_alignment_features" 1>&6
echo $ac_n "checking assembler subsection support""... $ac_c" 1>&6
echo "configure:8630: checking assembler subsection support" >&5
echo "configure:8828: checking assembler subsection support" >&5
gcc_cv_as_subsections=
if test x$gcc_cv_as != x; then
# Check if we have .subsection
......@@ -8668,7 +8866,7 @@ echo "$ac_t""$gcc_cv_as_subsections" 1>&6
case "$target" in
sparc*-*-*)
echo $ac_n "checking assembler .register pseudo-op support""... $ac_c" 1>&6
echo "configure:8672: checking assembler .register pseudo-op support" >&5
echo "configure:8870: checking assembler .register pseudo-op support" >&5
if eval "test \"`echo '$''{'gcc_cv_as_register_pseudo_op'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -8698,7 +8896,7 @@ EOF
case "$tm_file" in
*64*)
echo $ac_n "checking for 64 bit support in assembler ($gcc_cv_as)""... $ac_c" 1>&6
echo "configure:8702: checking for 64 bit support in assembler ($gcc_cv_as)" >&5
echo "configure:8900: checking for 64 bit support in assembler ($gcc_cv_as)" >&5
if eval "test \"`echo '$''{'gcc_cv_as_flags64'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -8743,7 +8941,7 @@ EOF
if test "x$gcc_cv_as_flags64" != xno; then
echo $ac_n "checking for assembler offsetable %lo() support""... $ac_c" 1>&6
echo "configure:8747: checking for assembler offsetable %lo() support" >&5
echo "configure:8945: checking for assembler offsetable %lo() support" >&5
if eval "test \"`echo '$''{'gcc_cv_as_offsetable_lo10'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
......@@ -8782,7 +8980,7 @@ EOF
i[34567]86-*-*)
echo $ac_n "checking assembler instructions""... $ac_c" 1>&6
echo "configure:8786: checking assembler instructions" >&5
echo "configure:8984: checking assembler instructions" >&5
gcc_cv_as_instructions=
if test x$gcc_cv_as != x; then
set "filds fists" "filds mem; fists mem"
......@@ -8880,9 +9078,8 @@ if test "${with_gc+set}" = set; then
;;
esac
else
if test $ac_cv_func_mmap_fixed_mapped = yes; then
GGC=ggc-page
elif test $ac_cv_func_valloc = yes; then
if test $ac_cv_func_mmap_anywhere = yes \
|| test $ac_cv_func_valloc = yes; then
GGC=ggc-page
else
GGC=ggc-simple
......
gcc/configure.in
......@@ -405,7 +405,7 @@ case "${host}" in
;;
esac
AC_FUNC_VFORK
AC_FUNC_MMAP
AC_FUNC_MMAP_ANYWHERE
GCC_NEED_DECLARATIONS(bcopy bzero bcmp \
index rindex getenv atol sbrk abort atof strerror getcwd getwd \
......@@ -4578,9 +4578,8 @@ AC_ARG_WITH(gc,
AC_MSG_ERROR([$withval is an invalid option to --with-gc])
;;
esac],
[if test $ac_cv_func_mmap_fixed_mapped = yes; then
GGC=ggc-page
elif test $ac_cv_func_valloc = yes; then
[if test $ac_cv_func_mmap_anywhere = yes \
|| test $ac_cv_func_valloc = yes; then
GGC=ggc-page
else
GGC=ggc-simple
......
gcc/ggc-page.c
/* "Bag-of-pages" garbage collector for the GNU compiler.
Copyright (C) 1999 Free Software Foundation, Inc.
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This file is part of GNU CC.
......@@ -27,7 +27,7 @@
#include "flags.h"
#include "ggc.h"
#ifdef HAVE_MMAP
#ifdef HAVE_MMAP_ANYWHERE
#include <sys/mman.h>
#endif
......@@ -229,7 +229,7 @@ static struct globals
unsigned char context_depth;
/* A file descriptor open to /dev/zero for reading. */
#if defined (HAVE_MMAP) && !defined(MAP_ANONYMOUS)
#if defined (HAVE_MMAP_ANYWHERE) && !defined(MAP_ANONYMOUS)
int dev_zero_fd;
#endif
......@@ -408,7 +408,7 @@ alloc_anon (pref, size)
{
char *page;
#ifdef HAVE_MMAP
#ifdef HAVE_MMAP_ANYWHERE
#ifdef MAP_ANONYMOUS
page = (char *) mmap (pref, size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
......@@ -430,7 +430,7 @@ alloc_anon (pref, size)
exit(1);
}
#endif /* HAVE_VALLOC */
#endif /* HAVE_MMAP */
#endif /* HAVE_MMAP_ANYWHERE */
/* Remember that we allocated this memory. */
G.bytes_mapped += size;
......@@ -533,7 +533,7 @@ free_page (entry)
static void
release_pages ()
{
#ifdef HAVE_MMAP
#ifdef HAVE_MMAP_ANYWHERE
page_entry *p, *next;
char *start;
size_t len;
......@@ -579,7 +579,7 @@ release_pages ()
free (p);
}
#endif /* HAVE_VALLOC */
#endif /* HAVE_MMAP */
#endif /* HAVE_MMAP_ANYWHERE */
G.free_pages = NULL;
}
......@@ -794,7 +794,7 @@ init_ggc ()
G.pagesize = getpagesize();
G.lg_pagesize = exact_log2 (G.pagesize);
#if defined (HAVE_MMAP) && !defined(MAP_ANONYMOUS)
#if defined (HAVE_MMAP_ANYWHERE) && !defined(MAP_ANONYMOUS)
G.dev_zero_fd = open ("/dev/zero", O_RDONLY);
if (G.dev_zero_fd == -1)
abort ();
......@@ -808,7 +808,7 @@ init_ggc ()
G.allocated_last_gc = GGC_MIN_LAST_ALLOCATED;
#ifdef HAVE_MMAP
#ifdef HAVE_MMAP_ANYWHERE
/* StunOS has an amazing off-by-one error for the first mmap allocation
after fiddling with RLIMIT_STACK. The result, as hard as it is to
believe, is an unaligned page allocation, which would cause us to
......
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