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Commit b355a481 by Nick Clifton Committed by Nick Clifton
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Appleid arm-elf contribution from Philip Blundell and merged with Catherine 

Moore's work.

From-SVN: r23364
parent 74153f8e
Showing with 709 additions and 105 deletions
gcc/ChangeLog
Tue Oct 27 10:15:02 EST 1998 Nick Clifton <nickc@cygnus.com>
Added support for arm-elf-linux configuration, submitted by Philip
Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
code developed by Catherine Moore <clm@cygnus.com>. The following
files are affected:
* configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
targets.
* configure: Regenerated.
* config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
definitions conditional on their not having been already defined.
* config/arm/lin1funcs.asm: Add ELF only macros to generate .size
and .type directives, and add "(PLT)" qualification to function
calls.
* config/arm/linux.h: Deleted. This file is now superceeded by
either linux-elf.h or linux-aout.h.
* config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
(CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
support).
Move definitions from old linux.h file here.
* config/arm/elf.h: New file. Generic ARM/ELF support.
* config/arm/linux-aout.h: New file. Support for Linux with a.out.
* config/arm/linux-elf.h: New file. Support for Linux with ELF.
* config/arm/linux-elf26.h: New file. Support for Linux with ELF
using the 26bit APCS.
* config/arm/unknown-elf.h: New file. Support for OS'es other
than Linux with ELF.
* config/arm/t-arm-elf: New file. makefile fragment for arm-elf
builds.
* config/arm/coff.h: Include aout.h for basic assembler macros.
Add support for -mstructure_size_boundary=<n> command line option.
* config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
command line option. Make macro definitions conditional on their
not having been already defined.
* config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
command line option.
Tue Oct 27 08:56:46 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
* dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
......
gcc/config/arm/aout.h
/* Definitions of target machine for GNU compiler, for ARM with a.out
Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rearnsha@armltd.co.uk).
This file is part of GNU CC.
......@@ -24,6 +24,7 @@ Boston, MA 02111-1307, USA. */
#endif
/* The text to go at the start of the assembler file */
#ifndef ASM_FILE_START
#define ASM_FILE_START(STREAM) \
{ \
fprintf (STREAM,"%srfp\t.req\t%sr9\n", REGISTER_PREFIX, REGISTER_PREFIX); \
......@@ -34,22 +35,35 @@ Boston, MA 02111-1307, USA. */
fprintf (STREAM,"%slr\t.req\t%sr14\n", REGISTER_PREFIX, REGISTER_PREFIX); \
fprintf (STREAM,"%spc\t.req\t%sr15\n", REGISTER_PREFIX, REGISTER_PREFIX); \
}
#endif
#define ASM_APP_ON ""
#define ASM_APP_OFF ""
#define ASM_APP_ON ""
#define ASM_APP_OFF ""
/* Switch to the text or data segment. */
#define TEXT_SECTION_ASM_OP ".text"
#define DATA_SECTION_ASM_OP ".data"
#define BSS_SECTION_ASM_OP ".bss"
#define TEXT_SECTION_ASM_OP ".text"
#define DATA_SECTION_ASM_OP ".data"
#define BSS_SECTION_ASM_OP ".bss"
/* Note: If USER_LABEL_PREFIX or LOCAL_LABEL_PREFIX are changed,
make sure that this change is reflected in the function
coff_arm_is_local_label_name() in bfd/coff-arm.c */
#ifndef REGISTER_PREFIX
#define REGISTER_PREFIX ""
#endif
#ifndef USER_LABEL_PREFIX
#define USER_LABEL_PREFIX "_"
#endif
#ifndef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX ""
#endif
#define REGISTER_PREFIX ""
#define USER_LABEL_PREFIX "_"
#define LOCAL_LABEL_PREFIX ""
/* The assembler's names for the registers. */
#ifndef REGISTER_NAMES
#define REGISTER_NAMES \
#define REGISTER_NAMES \
{ \
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
"r8", "r9", "sl", "fp", "ip", "sp", "lr", "pc", \
......@@ -111,25 +125,32 @@ do { \
} while (0)
/* Output a function label definition. */
#define ASM_DECLARE_FUNCTION_NAME(STREAM,NAME,DECL) \
ASM_OUTPUT_LABEL(STREAM, NAME)
#ifndef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(STREAM,NAME,DECL) ASM_OUTPUT_LABEL (STREAM, NAME)
#endif
#ifndef ASM_OUTPUT_LABEL
#define ASM_OUTPUT_LABEL(STREAM,NAME) \
do { \
assemble_name (STREAM,NAME); \
fputs (":\n", STREAM); \
} while (0)
#endif
/* Output a globalising directive for a label. */
#ifndef ASM_GLOBALIZE_LABEL
#define ASM_GLOBALIZE_LABEL(STREAM,NAME) \
(fprintf (STREAM, "\t.global\t"), \
assemble_name (STREAM, NAME), \
fputc ('\n',STREAM)) \
fputc ('\n',STREAM))
#endif
/* Make an internal label into a string. */
#ifndef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \
sprintf (STRING, "*%s%s%d", LOCAL_LABEL_PREFIX, PREFIX, NUM)
#endif
/* Nothing special is done about jump tables */
/* #define ASM_OUTPUT_CASE_LABEL(STREAM,PREFIX,NUM,TABLE) */
/* #define ASM_OUTPUT_CASE_END(STREAM,NUM,TABLE) */
......@@ -196,14 +217,14 @@ do { char dstr[30]; \
output_addr_const (STREAM, (EXP)), \
fputc ('\n', STREAM))
#define ASM_OUTPUT_BYTE(STREAM, VALUE) \
#define ASM_OUTPUT_BYTE(STREAM, VALUE) \
fprintf (STREAM, "\t.byte\t%d\n", VALUE)
#define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) \
output_ascii_pseudo_op ((STREAM), (unsigned char *)(PTR), (LEN))
/* Output a gap. In fact we fill it with nulls. */
#define ASM_OUTPUT_SKIP(STREAM, NBYTES) \
#define ASM_OUTPUT_SKIP(STREAM, NBYTES) \
fprintf (STREAM, "\t.space\t%d\n", NBYTES)
/* Align output to a power of two. Horrible /bin/as. */
......@@ -219,13 +240,18 @@ do { char dstr[30]; \
} while (0)
/* Output a common block */
#ifndef ASM_OUTPUT_COMMON
#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \
(fprintf (STREAM, "\t.comm\t"), \
assemble_name ((STREAM), (NAME)), \
fprintf(STREAM, ", %d\t%s %d\n", ROUNDED, ASM_COMMENT_START, SIZE))
fprintf (STREAM, ", %d\t%s %d\n", ROUNDED, ASM_COMMENT_START, SIZE))
#endif
/* Output a local common block. /bin/as can't do this, so hack a
`.space' into the bss segment. Note that this is *bad* practice. */
`.space' into the bss segment. Note that this is *bad* practice,
which is guaranteed NOT to work since it doesn't define STATIC
COMMON space but merely STATIC BSS space. */
#ifndef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(STREAM,NAME,SIZE,ALIGN) \
do { \
bss_section (); \
......@@ -233,27 +259,32 @@ do { char dstr[30]; \
ASM_OUTPUT_LABEL (STREAM, NAME); \
fprintf (STREAM, "\t.space\t%d\n", SIZE); \
} while (0)
#endif
/* Output a zero-initialized block. */
#ifndef ASM_OUTPUT_ALIGNED_BSS
#define ASM_OUTPUT_ALIGNED_BSS(STREAM,DECL,NAME,SIZE,ALIGN) \
asm_output_aligned_bss(STREAM, DECL, NAME, SIZE, ALIGN)
asm_output_aligned_bss (STREAM, DECL, NAME, SIZE, ALIGN)
#endif
/* Output a source line for the debugger. */
/* #define ASM_OUTPUT_SOURCE_LINE(STREAM,LINE) */
/* Output a #ident directive. */
#ifndef ASM_OUTPUT_IDENT
#define ASM_OUTPUT_IDENT(STREAM,STRING) \
fprintf (STREAM,"- - - ident %s\n",STRING)
fprintf (STREAM, "%s - - - ident %s\n", ASM_COMMENT_START, STRING)
#endif
/* The assembler's parentheses characters. */
#define ASM_OPEN_PAREN "("
#define ASM_CLOSE_PAREN ")"
#define ASM_OPEN_PAREN "("
#define ASM_CLOSE_PAREN ")"
#ifndef ASM_COMMENT_START
#define ASM_COMMENT_START "@"
#define ASM_COMMENT_START "@"
#endif
/* This works for GAS and some other assemblers. */
#define SET_ASM_OP ".set"
#define SET_ASM_OP ".set"
#include "arm/arm.h"
gcc/config/arm/arm.c
......@@ -90,6 +90,10 @@ enum prog_mode_type arm_prgmode;
/* Set by the -mfp=... option */
char *target_fp_name = NULL;
/* Used to parse -mstructure_size_boundary command line option. */
char * structure_size_string = NULL;
int arm_structure_size_boundary = 32; /* Used to be 8 */
/* Nonzero if this is an "M" variant of the processor. */
int arm_fast_multiply = 0;
......@@ -367,6 +371,16 @@ arm_override_options ()
flag_schedule_insns = flag_schedule_insns_after_reload = 0;
arm_prog_mode = TARGET_APCS_32 ? PROG_MODE_PROG32 : PROG_MODE_PROG26;
if (structure_size_string != NULL)
{
int size = strtol (structure_size_string, NULL, 0);
if (size == 8 || size == 32)
arm_structure_size_boundary = size;
else
warning ("Structure size boundary can only be set to 8 or 32");
}
}
......
gcc/config/arm/arm.h
......@@ -30,6 +30,9 @@ Boston, MA 02111-1307, USA. */
should default to that used by the OS.
*/
#ifndef __ARM_H__
#define __ARM_H__
#define TARGET_CPU_arm2 0x0000
#define TARGET_CPU_arm250 0x0000
#define TARGET_CPU_arm3 0x0000
......@@ -180,7 +183,9 @@ Unrecognized value in TARGET_CPU_DEFAULT.
%{m3:-D__APCS_26__} %{!m6:%{!m3:%{!m2:%(cpp_apcs_pc_default)}}}}} \
"
#ifndef CPP_APCS_PC_DEFAULT_SPEC
#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_26__"
#endif
#define CPP_FLOAT_SPEC "\
%{msoft-float:\
......@@ -381,7 +386,9 @@ extern char *target_fp_name;
{"cpu=", & arm_select[1].string, "Specify the name of the target CPU" }, \
{"arch=", & arm_select[2].string, "Specify the name of the target architecture" }, \
{"tune=", & arm_select[3].string, "" }, \
{"fp=", & target_fp_name, "Specify the version of the floating point emulator"} \
{"fp=", & target_fp_name, "Specify the version of the floating point emulator"}, \
{ "structure-size-boundary=", & structure_size_string, \
"Specify the minumum bit alignment of structures" } \
}
/* arm_select[0] is reserved for the default cpu. */
......@@ -579,7 +586,12 @@ extern int arm_arch4;
/* This is for compatibility with ARMCC. ARM SDT Reference Manual
(ARM DUI 0020D) page 2-20 says "Structures are aligned on word
boundaries". */
#ifndef STRUCTURE_SIZE_BOUNDARY
#define STRUCTURE_SIZE_BOUNDARY 32
#endif
/* Used when parsing command line option -mstructure_size_boundary. */
extern char * structure_size_string;
/* Non-zero if move instructions will actually fail to work
when given unaligned data. */
......@@ -1832,6 +1844,7 @@ extern int arm_compare_fp;
goto JUMPTO
/* Output an internal label definition. */
#ifndef ASM_OUTPUT_INTERNAL_LABEL
#define ASM_OUTPUT_INTERNAL_LABEL(STREAM, PREFIX, NUM) \
do \
{ \
......@@ -1848,7 +1861,8 @@ extern int arm_compare_fp;
ASM_GENERATE_INTERNAL_LABEL (s, (PREFIX), (NUM)); \
ASM_OUTPUT_LABEL (STREAM, s); \
} while (0)
#endif
/* Output a push or a pop instruction (only used when profiling). */
#define ASM_OUTPUT_REG_PUSH(STREAM,REGNO) \
fprintf(STREAM,"\tstmfd\t%ssp!,{%s%s}\n", \
......@@ -2132,3 +2146,5 @@ void aof_add_import (/* char * */);
void aof_delete_import (/* char * */);
void aof_dump_imports (/* FILE * */);
#endif
#endif /* __ARM_H__ */
gcc/config/arm/coff.h
/* Definitions of target machine for GNU compiler,
for ARM with COFF obj format.
Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
Contributed by Doug Evans (dje@cygnus.com).
This file is part of GNU CC.
......@@ -21,27 +21,25 @@ the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "arm/semi.h"
#include "arm/aout.h"
/* Run-time Target Specification. */
#undef TARGET_VERSION
#undef TARGET_VERSION
#define TARGET_VERSION fputs (" (ARM/coff)", stderr)
/* ??? Maybe use --with{enable?}-fpu or some such to make hardware floating
point the default. NOT --nfp! --with{enable?} is supposed to replace it
(right?), so let's stop using it. */
#undef TARGET_DEFAULT
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32)
/* ??? Is a big-endian default intended to be supported? */
#if 0 /*TARGET_CPU_DEFAULT & ARM_FLAG_BIG_END*/
#define MULTILIB_DEFAULTS { "mbig-endian" }
#else
#define MULTILIB_DEFAULTS { "mlittle-endian" }
#endif
#define MULTILIB_DEFAULTS { "mlittle-endian", "msoft-float", "mapcs-32" }
/* ??? Does arm.h really need to set this to 32? */
#undef STRUCTURE_SIZE_BOUNDARY
#define STRUCTURE_SIZE_BOUNDARY 8
/* Setting this to 32 produces more efficient code, but the value set in previous
versions of this toolchain was 8, which produces more compact structures. The
command line option -mstructure_size_boundary=<n> can be used to change this
value. */
#undef STRUCTURE_SIZE_BOUNDARY
#define STRUCTURE_SIZE_BOUNDARY arm_structure_size_boundary
extern int arm_structure_size_boundary;
/* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
is a valid machine specific attribute for DECL.
......@@ -57,12 +55,6 @@ arm_valid_machine_decl_attribute (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
#include "dbxcoff.h"
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
#undef USER_LABEL_PREFIX
#define USER_LABEL_PREFIX ""
/* A C statement to output assembler commands which will identify the
object file as having been compiled with GNU CC (or another GNU
compiler). */
......@@ -71,7 +63,8 @@ arm_valid_machine_decl_attribute (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
Also, when using stabs, gcc2_compiled must be a stabs entry, not an
ordinary symbol, or gdb won't see it. The stabs entry must be
before the N_SO in order for gdb to find it. */
#define ASM_IDENTIFY_GCC(STREAM)
#define ASM_IDENTIFY_GCC(STREAM) \
fprintf (STREAM, "%sgcc2_compiled.:\n", LOCAL_LABEL_PREFIX )
/* This outputs a lot of .req's to define alias for various registers.
Let's try to avoid this. */
......@@ -106,14 +99,13 @@ do { \
Otherwise, the readonly data section is used. */
#define JUMP_TABLES_IN_TEXT_SECTION 1
#undef READONLY_DATA_SECTION
#undef READONLY_DATA_SECTION
#define READONLY_DATA_SECTION rdata_section
#undef RDATA_SECTION_ASM_OP
#undef RDATA_SECTION_ASM_OP
#define RDATA_SECTION_ASM_OP "\t.section .rdata"
#undef CTORS_SECTION_ASM_OP
#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP "\t.section .ctors,\"x\""
#undef DTORS_SECTION_ASM_OP
#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP "\t.section .dtors,\"x\""
/* A list of other sections which the compiler might be "in" at any
......@@ -200,8 +192,12 @@ do { \
#undef DO_GLOBAL_CTORS_BODY
#undef DO_GLOBAL_DTORS_BODY
/* The ARM development system has atexit and doesn't have _exit,
so define this for now. */
/* If you don't define HAVE_ATEXIT, and the object file format/OS/whatever
does not support constructors/destructors, then gcc implements destructors
by defining its own exit function, which calls the destructors. This gcc
exit function overrides the C library's exit function, and this can cause
all kinds of havoc if the C library has a non-trivial exit function. You
really don't want to use the exit function in libgcc2.c. */
#define HAVE_ATEXIT
/* The ARM development system defines __main. */
......
gcc/config/arm/lib1funcs.asm
@ libgcc1 routines for ARM cpu.
@ Division routines, written by Richard Earnshaw, (rearnsha@armltd.co.uk)
/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
/* Copyright (C) 1995, 1996, 1998 Free Software Foundation, Inc.
This file is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
......@@ -43,6 +43,16 @@ Boston, MA 02111-1307, USA. */
#define RETCOND
#endif
#ifdef __elf__
#define __PLT__ (PLT)
#define TYPE(x) .type SYM(x),function
#define SIZE(x) .size SYM(x), . - SYM(x)
#else
#define __PLT__
#define TYPE(x)
#define SIZE(x)
#endif
#ifndef __USER_LABEL_PREFIX__
#define __USER_LABEL_PREFIX__ _
#endif
......@@ -66,9 +76,11 @@ ip .req r12
sp .req r13
lr .req r14
pc .req r15
.text
.globl SYM (__udivsi3)
.align 0
.globl SYM(__udivsi3)
TYPE (__udivsi3)
.align 0
SYM (__udivsi3):
cmp divisor, #0
......@@ -124,10 +136,12 @@ Lgot_result:
Ldiv0:
str lr, [sp, #-4]!
bl SYM (__div0)
bl SYM (__div0) __PLT__
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}RETCOND
SIZE (__udivsi3)
#endif /* L_udivsi3 */
#ifdef L_umodsi3
......@@ -140,8 +154,10 @@ ip .req r12
sp .req r13
lr .req r14
pc .req r15
.text
.globl SYM (__umodsi3)
TYPE (__umodsi3)
.align 0
SYM (__umodsi3):
......@@ -210,10 +226,12 @@ Loop3:
Ldiv0:
str lr, [sp, #-4]!
bl SYM (__div0)
bl SYM (__div0) __PLT__
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}RETCOND
SIZE (__umodsi3)
#endif /* L_umodsi3 */
#ifdef L_divsi3
......@@ -226,8 +244,10 @@ ip .req r12
sp .req r13
lr .req r14
pc .req r15
.text
.globl SYM (__divsi3)
TYPE (__divsi3)
.align 0
SYM (__divsi3):
......@@ -291,10 +311,12 @@ Lgot_result:
Ldiv0:
str lr, [sp, #-4]!
bl SYM (__div0)
bl SYM (__div0) __PLT__
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}RETCOND
SIZE (__divsi3)
#endif /* L_divsi3 */
#ifdef L_modsi3
......@@ -307,8 +329,10 @@ ip .req r12
sp .req r13
lr .req r14
pc .req r15
.text
.globl SYM (__modsi3)
TYPE (__modsi3)
.align 0
SYM (__modsi3):
......@@ -388,38 +412,47 @@ Lgot_result:
Ldiv0:
str lr, [sp, #-4]!
bl SYM (__div0)
bl SYM (__div0) __PLT__
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}RETCOND
SIZE (__modsi3)
#endif /* L_modsi3 */
#ifdef L_dvmd_tls
.globl SYM (__div0)
TYPE (__div0)
.align 0
SYM (__div0):
RET pc, lr
SIZE (__div0)
#endif /* L_divmodsi_tools */
#ifdef L_dvmd_lnx
@ GNU/Linux division-by zero handler. Used in place of L_dvmd_tls
#include <asm/unistd.h>
#define SIGFPE 8 @ cant use <asm/signal.h> as it
@ contains too much C rubbish
.globl SYM (__div0)
TYPE (__div0)
.align 0
SYM (__div0):
stmfd sp!, {r1, lr}
swi __NR_getpid
cmn r0, #1000
ldmgefd sp!, {r1, pc}RETCOND @ not much we can do
ldmhsfd sp!, {r1, pc}RETCOND @ not much we can do
mov r1, #SIGFPE
swi __NR_kill
ldmfd sp!, {r1, pc}RETCOND
SIZE (__div0)
#endif /* L_dvmd_lnx */
/* These next two sections are here despite the fact that they contain Thumb
......
gcc/config/arm/linux.h → gcc/config/arm/linux-aout.h
/* Definitions for ARM running Linux
Copyright (C) 1993, 1994, 1997 Free Software Foundation, Inc.
Adapted from ARM Linux by Russell King <rmk92@ecs.soton.ac.uk>.
/* Definitions for ARM running Linux-based GNU systems using a.out.
Copyright (C) 1993, 1994, 1997, 1998 Free Software Foundation, Inc.
Contributed by Russell King <rmk92@ecs.soton.ac.uk>.
This file is part of GNU CC.
......@@ -31,7 +31,7 @@ Boston, MA 02111-1307, USA. */
#undef COMMENT_BEGIN
/* We default to ARM3. */
#define TARGET_CPU_DEFAULT TARGET_CPU_arm3
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm3
#undef CPP_PREDEFINES
#define CPP_PREDEFINES \
......@@ -41,33 +41,18 @@ Boston, MA 02111-1307, USA. */
#define LIB_SPEC \
"%{mieee-fp:-lieee} %{p:-lgmon} %{pg:-lgmon} %{!ggdb:-lc} %{ggdb:-lg}"
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"
#undef WCHAR_TYPE
#define WCHAR_TYPE "long int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE BITS_PER_WORD
#define HANDLE_SYSV_PRAGMA
/* Run-time Target Specification. */
#define TARGET_VERSION \
fputs (" (ARM Linux/a.out)", stderr);
#define TARGET_VERSION fputs (" (ARM GNU/Linux with a.out)", stderr);
/* This is used in ASM_FILE_START */
#define ARM_OS_NAME "Linux"
/* Unsigned chars produces much better code than signed. */
#define DEFAULT_SIGNED_CHAR 0
/* Maths operation domain error number, EDOM */
/*
* Maths operation domain error number, EDOM
* We don't really want this for libc6. However, taking it out would be
* too much of a pain for now and it doesn't hurt much.
*/
#define TARGET_EDOM 33
#include "arm/aout.h"
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
#include "arm/linux-gas.h"
gcc/config/arm/linux-elf.h 0 → 100644
/* Definitions for ARM running Linux-based GNU systems using ELF
Copyright (C) 1993, 1994, 1997, 1998 Free Software Foundation, Inc.
Contributed by Philip Blundell <philb@gnu.org>
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Run-time Target Specification. */
#define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr);
/* We have libgcc2. */
#define HAVE_ATEXIT
/* Default is to use APCS-32 mode. */
#ifndef SUBTARGET_DEFAULT_APCS26
#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_SHORT_BYTE)
#define SUBTARGET_EXTRA_LINK_SPEC \
" %{mapcs-26:-m elf32arm26} %{!mapcs-26:-m elf32arm}"
#define SUBTARGET_EXTRA_ASM_SPEC \
" %{mapcs-26:-mapcs-26} %(!mapcs-26:-mapcs-32}"
#endif
/* Now we define the strings used to build the spec file. */
#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
/* Add the compiler's crtend, and the library's crtn. */
#define ENDFILE_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
%{pg:gcrtn.o%s}%{!pg:crtn.o%s}"
#define STARTFILE_SPEC "%{!shared:crt1.o%s} \
crti.o%s \
%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
#define LINK_SPEC "%{h*} %{version:-v} \
%{b} %{Wl,*:%*} \
%{static:-Bstatic} \
%{shared:-shared} \
%{symbolic:-Bsymbolic} \
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \
-X \
%{mbig-endian:-EB}" \
SUBTARGET_EXTRA_LINK_SPEC
#undef CPP_PREDEFINES
#define CPP_PREDEFINES \
"-Dunix -Darm -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(arm) \
-Amachine(arm) -D__ELF__ -Darm_elf"
#ifndef SUBTARGET_DEFAULT_APCS26
#undef CPP_APCS_PC_DEFAULT_SPEC
#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
#endif
/* Allow #sccs in preprocessor. */
#define SCCS_DIRECTIVE
#define USER_LABEL_PREFIX "" /* For ELF the default is no underscores */
#define LOCAL_LABEL_PREFIX "."
/* Attach a special .ident directive to the end of the file to identify
the version of GCC which compiled this code. */
#define IDENT_ASM_OP ".ident"
/* Output #ident as a .ident. */
#define ASM_OUTPUT_IDENT(FILE, NAME) \
fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME);
#ifdef IDENTIFY_WITH_IDENT
#define ASM_IDENTIFY_GCC(FILE) /* nothing */
#define ASM_IDENTIFY_LANGUAGE(FILE) \
fprintf (FILE, "\t%s \"GCC (%s) %s\"\n", IDENT_ASM_OP, \
lang_identify (), version_string)
#else
#define ASM_FILE_END(FILE) \
do { \
fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \
IDENT_ASM_OP, version_string); \
} while (0)
#endif
/* Support const sections and the ctors and dtors sections for g++.
Note that there appears to be two different ways to support const
sections at the moment. You can either #define the symbol
READONLY_DATA_SECTION (giving it some code which switches to the
readonly data section) or else you can #define the symbols
EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
SELECT_RTX_SECTION. We do both here just to be on the safe side. */
#define USE_CONST_SECTION 1
/* Support for Constructors and Destructors. */
#define READONLY_DATA_SECTION() const_section ()
/* A default list of other sections which we might be "in" at any given
time. For targets that use additional sections (e.g. .tdesc) you
should override this definition in the target-specific file which
includes this file. */
#define SUBTARGET_EXTRA_SECTIONS in_const,
/* A default list of extra section function definitions. For targets
that use additional sections (e.g. .tdesc) you should override this
definition in the target-specific file which includes this file. */
#define SUBTARGET_EXTRA_SECTION_FUNCTIONS CONST_SECTION_FUNCTION
extern void text_section ();
#define CONST_SECTION_ASM_OP ".section\t.rodata"
#define CONST_SECTION_FUNCTION \
void \
const_section () \
{ \
if (!USE_CONST_SECTION) \
text_section (); \
else if (in_section != in_const) \
{ \
fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
in_section = in_const; \
} \
}
/* Switch into a generic section.
This is currently only used to support section attributes.
We make the section read-only and executable for a function decl,
read-only for a const data decl, and writable for a non-const data decl. */
#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \
fprintf (FILE, ".section\t%s,\"%s\",%%progbits\n", NAME, \
(DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" : \
(DECL) && DECL_READONLY_SECTION (DECL, RELOC) ? "a" : "aw")
/* A C statement or statements to switch to the appropriate
section for output of DECL. DECL is either a `VAR_DECL' node
or a constant of some sort. RELOC indicates whether forming
the initial value of DECL requires link-time relocations. */
#define SELECT_SECTION(DECL,RELOC) \
{ \
if (TREE_CODE (DECL) == STRING_CST) \
{ \
if (! flag_writable_strings) \
const_section (); \
else \
data_section (); \
} \
else if (TREE_CODE (DECL) == VAR_DECL) \
{ \
if ((flag_pic && RELOC) \
|| !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \
|| !DECL_INITIAL (DECL) \
|| (DECL_INITIAL (DECL) != error_mark_node \
&& !TREE_CONSTANT (DECL_INITIAL (DECL)))) \
data_section (); \
else \
const_section (); \
} \
else \
const_section (); \
}
/* A C statement or statements to switch to the appropriate
section for output of RTX in mode MODE. RTX is some kind
of constant in RTL. The argument MODE is redundant except
in the case of a `const_int' rtx. Currently, these always
go into the const section. */
#define SELECT_RTX_SECTION(MODE,RTX) const_section ()
/* On svr4, we *do* have support for the .init and .fini sections, and we
can put stuff in there to be executed before and after `main'. We let
crtstuff.c and other files know this by defining the following symbols.
The definitions say how to change sections to the .init and .fini
sections. This is the same for all known svr4 assemblers. */
#define INIT_SECTION_ASM_OP ".section\t.init"
#define FINI_SECTION_ASM_OP ".section\t.fini"
/* This is how we tell the assembler that a symbol is weak. */
#define ASM_WEAKEN_LABEL(FILE,NAME) \
do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
fputc ('\n', FILE); } while (0)
/* This is how we tell the assembler that two symbols have the same value. */
#define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \
do { assemble_name (FILE, NAME1); \
fputs (" = ", FILE); \
assemble_name (FILE, NAME2); \
fputc ('\n', FILE); } while (0)
#include "arm/elf.h"
#include "arm/linux-gas.h"
gcc/config/arm/linux-gas.h
/* Definitions of target machine for GNU compiler. ARM Linux version.
Copyright (C) 1997 Free Software Foundation, Inc.
/* Definitions of target machine for GNU compiler.
ARM Linux-based GNU systems version.
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
Contributed by Russell King <rmk92@ecs.soton.ac.uk>.
This file is part of GNU CC.
......@@ -19,11 +20,6 @@ along with this program; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Limit the length of a stabs entry (for the broken Acorn assembler) */
#define DBX_CONTIN_LENGTH 80
#include "arm/linux.h"
/*
* We are using GAS, so stabs should work.
*/
......@@ -31,3 +27,61 @@ Boston, MA 02111-1307, USA. */
#ifndef DBX_DEBUGGING_INFO
#define DBX_DEBUGGING_INFO 1
#endif
/*
* This is how we tell the assembler that a symbol is weak. GAS always
* supports weak symbols.
*/
#define ASM_WEAKEN_LABEL(FILE,NAME) \
do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
fputc ('\n', FILE); } while (0)
/* This is used in ASM_FILE_START */
#undef ARM_OS_NAME
#define ARM_OS_NAME "Linux"
/* Unsigned chars produces much better code than signed. */
#define DEFAULT_SIGNED_CHAR 0
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__}"
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"
#undef WCHAR_TYPE
#define WCHAR_TYPE "long int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE BITS_PER_WORD
#if 0 /* not yet */
/* Clear the instruction cache from `beg' to `end'. This makes an
inline system call to SYS_cacheflush. The arguments are as
follows:
cacheflush (start, end, flags)
*/
#define CLEAR_INSN_CACHE(BEG, END) \
{ \
register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
register unsigned long _end __asm ("a2") = (unsigned long) (END); \
register unsigned long _flg __asm ("a3") = 0; \
__asm __volatile ("swi 0x9000b8"); \
}
#endif
/* If cross-compiling, don't require stdio.h etc to build libgcc.a. */
#ifdef CROSS_COMPILE
#ifndef inhibit_libc
#define inhibit_libc
#endif
#endif
gcc/config/arm/t-arm-elf 0 → 100644
CROSS_LIBGCC1 = libgcc1-asm.a
LIB1ASMSRC = arm/lib1funcs.asm
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls
EXTRA_PARTS = crtbegin.o crtend.o
# These are really part of libgcc1, but this will cause them to be
# built correctly, so...
LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c
fp-bit.c: $(srcdir)/config/fp-bit.c
echo '#define FLOAT' > fp-bit.c
echo '#ifndef __ARMEB__' >> fp-bit.c
echo '#define FLOAT_BIT_ORDER_MISMATCH' >> fp-bit.c
echo '#endif' >> fp-bit.c
cat $(srcdir)/config/fp-bit.c >> fp-bit.c
dp-bit.c: $(srcdir)/config/fp-bit.c
echo '#ifndef __ARMEB__' > dp-bit.c
echo '#define FLOAT_BIT_ORDER_MISMATCH' >> dp-bit.c
echo '#define FLOAT_WORD_ORDER_MISMATCH' >> dp-bit.c
echo '#endif' >> dp-bit.c
cat $(srcdir)/config/fp-bit.c >> dp-bit.c
MULTILIB_OPTIONS = mlittle-endian/mbig-endian mhard-float/msoft-float mapcs-32/mapcs-26
MULTILIB_DIRNAMES = le be fpu soft 32bit 26bit
MULTILIB_MATCHES =
LIBGCC = stmp-multilib
INSTALL_LIBGCC = install-multilib
gcc/config/arm/unknown-elf.h 0 → 100644
/* Definitions for non-Linux based ARM systems using ELF
Copyright (C) 1998 Free Software Foundation, Inc.
Contributed by Catherine Moore <clm@cygnus.com>
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Run-time Target Specification. */
#define TARGET_VERSION fputs (" (ARM non-Linux)", stderr);
/* If you don't define HAVE_ATEXIT, and the object file format/OS/whatever
does not support constructors/destructors, then gcc implements destructors
by defining its own exit function, which calls the destructors. This gcc
exit function overrides the C library's exit function, and this can cause
all kinds of havoc if the C library has a non-trivial exit function. You
really don't want to use the exit function in libgcc2.c. */
#define HAVE_ATEXIT
/* Default to using APCS-32 and software floating point. */
#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32)
/* Now we define the strings used to build the spec file. */
#define STARTFILE_SPEC "crtbegin%O%s crt0%O%s"
#define ENDFILE_SPEC "crtend%O%s"
#define USER_LABEL_PREFIX "_" /* FIXME: This ought to be "" */
#define LOCAL_LABEL_PREFIX "."
#define TEXT_SECTION " .text"
#define INVOKE__main
/* Debugging */
#define DWARF_DEBUGGING_INFO
#define DWARF2_DEBUGGING_INFO
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
/* Support for Constructors and Destrcutors . */
#define READONLY_DATA_SECTION rdata_section
/* A list of other sections which the compiler might be "in" at any
given time. */
#define SUBTARGET_EXTRA_SECTIONS in_rdata,
/* A list of extra section function definitions. */
#define SUBTARGET_EXTRA_SECTION_FUNCTIONS RDATA_SECTION_FUNCTION
#define RDATA_SECTION_ASM_OP "\t.section .rodata"
#define RDATA_SECTION_FUNCTION \
void \
rdata_section () \
{ \
if (in_section != in_rdata) \
{ \
fprintf (asm_out_file, "%s\n", RDATA_SECTION_ASM_OP); \
in_section = in_rdata; \
} \
}
#define CTOR_LIST_BEGIN \
asm (CTORS_SECTION_ASM_OP); \
func_ptr __CTOR_LIST__[1] = { (func_ptr) (-1) }
#define CTOR_LIST_END \
asm (CTORS_SECTION_ASM_OP); \
func_ptr __CTOR_END__[1] = { (func_ptr) 0 };
#define DTOR_LIST_BEGIN \
asm (DTORS_SECTION_ASM_OP); \
func_ptr __DTOR_LIST__[1] = { (func_ptr) (-1) }
#define DTOR_LIST_END \
asm (DTORS_SECTION_ASM_OP); \
func_ptr __DTOR_END__[1] = { (func_ptr) 0 };
/* A C statement to output something to the assembler file to switch to section
NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
NULL_TREE. Some target formats do not support arbitrary sections. Do not
define this macro in such cases. */
#define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME, RELOC) \
do { \
if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \
fprintf (STREAM, "\t.section %s,\"ax\",@progbits\n", (NAME)); \
else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \
fprintf (STREAM, "\t.section %s,\"a\"\n", (NAME)); \
else \
fprintf (STREAM, "\t.section %s,\"aw\"\n", (NAME)); \
} while (0)
/* Don't know how to order these. UNALIGNED_WORD_ASM_OP is in
dwarf2.out. */
#define UNALIGNED_WORD_ASM_OP ".4byte"
#define ASM_OUTPUT_DWARF2_ADDR_CONST(FILE,ADDR) \
if (((ADDR)[0] == '.') && ((ADDR)[1] == 'L')) \
fprintf ((FILE), "\t%s\t%s", UNALIGNED_WORD_ASM_OP, (ADDR)); \
else \
fprintf ((FILE), "\t%s\t%s%s", \
UNALIGNED_WORD_ASM_OP, USER_LABEL_PREFIX, (ADDR))
#define ASM_OUTPUT_DWARF_ADDR_CONST(FILE,RTX) \
do { \
fprintf ((FILE), "\t%s\t", UNALIGNED_WORD_ASM_OP); \
output_addr_const ((FILE), (RTX)); \
fputc ('\n', (FILE)); \
} while (0)
/* The ARM development system defines __main. */
#define NAME__MAIN "__gccmain"
#define SYMBOL__MAIN __gccmain
#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
#define UNIQUE_SECTION_P(DECL) (DECL_ONE_ONLY (DECL))
#define UNIQUE_SECTION(DECL,RELOC) \
do { \
int len; \
char *name, *string, *prefix; \
\
name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \
\
if (! DECL_ONE_ONLY (DECL)) \
{ \
prefix = "."; \
if (TREE_CODE (DECL) == FUNCTION_DECL) \
prefix = ".text."; \
else if (DECL_READONLY_SECTION (DECL, RELOC)) \
prefix = ".rodata."; \
else \
prefix = ".data."; \
} \
else if (TREE_CODE (DECL) == FUNCTION_DECL) \
prefix = ".gnu.linkonce.t."; \
else if (DECL_READONLY_SECTION (DECL, RELOC)) \
prefix = ".gnu.linkonce.r."; \
else \
prefix = ".gnu.linkonce.d."; \
\
len = strlen (name) + strlen (prefix); \
string = alloca (len + 1); \
sprintf (string, "%s%s", prefix, name); \
\
DECL_SECTION_NAME (DECL) = build_string (len, string); \
} while (0)
#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm7tdmi
/* Now get the routine arm-elf definitions. */
#include "arm/elf.h"
gcc/configure.in
......@@ -673,18 +673,38 @@ changequote([,])dnl
# On NetBSD, the headers are already okay, except for math.h.
fixincludes=fixinc.wrap
;;
arm-*-linux-gnuaout*) # ARM GNU/Linux
arm*-*-linux-gnuaout*) # ARM GNU/Linux with a.out
cpu_type=arm
xmake_file=x-linux
tm_file=arm/linux-gas.h
tm_file=arm/linux-aout.h
tmake_file=arm/t-linux
fixincludes=Makefile.in
gnu_ld=yes
;;
arm-*-aout)
arm*-*-linux-gnu*) # ARM GNU/Linux with ELF
xm_file=arm/xm-linux.h
xmake_file=x-linux
case $machine in
armv2*-*-*)
tm_file=arm/linux-elf26.h
;;
*)
tm_file=arm/linux-elf.h
;;
esac
tmake_file="t-linux arm/t-linux"
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
fixincludes=Makefile.in # Nothing to fix
gnu_ld=yes
;;
arm*-*-aout)
tm_file=arm/aout.h
tmake_file=arm/t-bare
;;
arm*-*-elf)
tm_file=arm/unknown-elf.h
tmake_file=arm/t-arm-elf
;;
c1-convex-*) # Convex C1
target_cpu_default=1
use_collect2=yes
......
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