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| author | Richard Henderson <rth@redhat.com> | 2002-01-26 20:18:12 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2002-01-26 20:18:12 -0800 |
| commit | cea3bd3e5a0a40eb90809bf90063da4911ba23b0 (patch) | |
| tree | e5878dd8630022a33d8797b199100a5b12fc5c7f /gcc/config/i386/linux.h | |
| parent | 1f9131b7db56276783f0276f2083c208dbf05709 (diff) | |
| download | gcc-cea3bd3e5a0a40eb90809bf90063da4911ba23b0.zip gcc-cea3bd3e5a0a40eb90809bf90063da4911ba23b0.tar.gz gcc-cea3bd3e5a0a40eb90809bf90063da4911ba23b0.tar.bz2 | |
Makefile.in (CRTSTUFF_CFLAGS): New.
* Makefile.in (CRTSTUFF_CFLAGS): New.
(crtbegin.o, crtend.o, crtbeginS.o, crtendS.o, crtbeginT.o): Use it.
* config.gcc (alpha-linux, alpha-freebsd, alpha-netbsd): Use plain
crtstuff.c instead of alpha assembly version.
* crtstuff.c (CRT_CALL_STATIC_FUNCTION): Rewrite to assume the
entire dummy function sequence. Use FORCE_CODE_SECTION_ALIGN
not FORCE_{INIT,FINI}_SECTION_ALIGN.
(__do_global_dtors_aux): Mark used.
(frame_dummy, __do_global_ctors_aux): Mark used.
(fini_dummy, init_dummy): Remove.
* config/alpha/crtbegin.asm: Remove file.
* config/alpha/crtend.asm: Remove file.
* config/alpha/t-crtbe: Remove file.
* config/alpha/elf.h (CRT_CALL_STATIC_FUNCTION): New.
(LINK_EH_SPEC): New.
* config/cris/cris.h (CRT_CALL_STATIC_FUNCTION): Rewrite old
FORCE_INIT_SECTION_ALIGN hack. Register __fini_start before
calling constructors.
* config/cris/linux.h (CRT_CALL_STATIC_FUNCTION): Undef.
* config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): New.
* config/i386/linux.h (CRT_CALL_STATIC_FUNCTION): Replace old
CRT_END_INIT_DUMMY hack.
* config/i386/sol2.h (FORCE_CODE_SECTION_ALIGN): Replace
FORCE_{INIT,FINI}_SECTION_ALIGN.
* config/mcore/mcore-elf.h (FORCE_CODE_SECTION_ALIGN): Replace
FORCE_{INIT,FINI}_SECTION_ALIGN.
* config/s390/s390.h (CRT_CALL_STATIC_FUNCTION): Update for new
invocation sequence.
* config/sh/sh.h (CRT_CALL_STATIC_FUNCTION): Likewise.
* doc/tm.texi (CRT_CALL_STATIC_FUNCTION): Update.
(FORCE_CODE_SECTION_ALIGN): New.
From-SVN: r49261
Diffstat (limited to 'gcc/config/i386/linux.h')
| -rw-r--r-- | gcc/config/i386/linux.h | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/gcc/config/i386/linux.h b/gcc/config/i386/linux.h index 63006b3..de634d3 100644 --- a/gcc/config/i386/linux.h +++ b/gcc/config/i386/linux.h @@ -1,5 +1,6 @@ /* Definitions for Intel 386 running Linux-based GNU systems with ELF format. - Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2001 Free Software Foundation, Inc. + Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002 + Free Software Foundation, Inc. Contributed by Eric Youngdale. Modified for stabs-in-ELF by H.J. Lu. @@ -167,20 +168,20 @@ Boston, MA 02111-1307, USA. */ #if defined(__PIC__) && defined (USE_GNULIBC_1) /* This is a kludge. The i386 GNU/Linux dynamic linker needs ___brk_addr, - __environ and atexit (). We have to make sure they are in the .dynsym - section. We accomplish it by making a dummy call here. This - code is never reached. */ - -#define CRT_END_INIT_DUMMY \ - do \ - { \ - extern void *___brk_addr; \ - extern char **__environ; \ - \ - ___brk_addr = __environ; \ - atexit (0); \ - } \ - while (0) + __environ and atexit. We have to make sure they are in the .dynsym + section. We do this by forcing the assembler to create undefined + references to these symbols in the object file. */ +#undef CRT_CALL_STATIC_FUNCTION +#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ + asm (SECTION_OP "\n\t" \ + "call " USER_LABEL_PREFIX #FUNC "\n" \ + TEXT_SECTION_ASM_OP "\n\t" \ + ".extern ___brk_addr\n\t" \ + ".type ___brk_addr,@object\n\t" \ + ".extern __environ\n\t" \ + ".type __environ,@object\n\t" \ + ".extern atexit\n\t" \ + ".type atexit,@function"); #endif /* Handle special EH pointer encodings. Absolute, pc-relative, and |