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Thu Sep 21 00:03:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/stub/sys/sem_buf.h (union semun): New type. * sysdeps/mach/hurd/i386/init-first.c (init1) [PIC]: Call __libc_global_ctors. * sysdeps/i386/init-first.c: Rewritten. * sysdeps/unix/sysv/linux/i386/init-first.S: File removed. * sysdeps/unix/sysv/linux/i386/init-first.c: New file. * sysdeps/unix/sysv/linux/i386/fpu_control.h: Fix name in decl of ___fpu_control. * Makerules (build-shlib): New canned sequence, broken out of lib%.so rule. Link in $^ instead of just $<. (lib%.so: lib%_pic.a): Use it. (libc.so): New target; use $(build-shlib) for cmds, but also depend on soinit.so first and sofini.so last. * elf/soinit.c: New file. * elf/sofini.c: New file. * elf/Makefile (distribute): Add soinit.c and sofini.c. (extra-objs): Add soinit.so and sofini.so. * sysvipc/sys/shm.h (shmat): Fix return type to char *. * sysdeps/stub/sys/ipc_buf.h (key_t): Type removed. * misc/syslog.c (vsyslog): Rewritten using open_memstream to dynamically allocate buffers. * Makerules (install-lib-nosubdir): Make this, rather than install-no-libc.a, depend on the installed shared libraries.
This commit is contained in:
Roland McGrath
@@ -1,4 +1,4 @@
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/* Copyright (C) 1993 Free Software Foundation, Inc.
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/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Olaf Flebbe.
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@@ -88,7 +88,7 @@ Boston, MA 02111-1307, USA. */
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#define _FPU_IEEE 0x137f
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/* private namespace. It should only be used in init-first.o. */
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extern unsigned short __fpu_control;
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extern unsigned short ___fpu_control;
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__BEGIN_DECLS
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@@ -1,84 +0,0 @@
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/* Initialization code run first thing by the ELF startup code.
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For i386/Linux.
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Copyright (C) 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdep.h>
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.text
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/* Called from start.S. Not: there is no value in %ebx. */
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ENTRY (__libc_init_first)
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/* Make sure we are not using iBSC2 personality. */
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movl $SYS_ify (personality), %eax
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xorl %ebx, %ebx
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int $0x80
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#ifdef PIC
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/* Set control work of FPU. */
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call .L0
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.L0: popl %ebx
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addl $_GLOBAL_OFFSET_TABLE_+[.-.L0], %ebx
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movzwl C_SYMBOL_NAME(___fpu_control@GOT)(%ebx), %eax
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#else
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movzwl ___fpu_control, %eax
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#endif
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pushl %eax
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call JUMPTARGET(__setfpucw)
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addl $4, %esp
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/* That is all for now. */
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ret
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/* This is only a dummy function for the list below. */
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.type _dummy_exit, @function
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C_LABEL(_dummy_exit)
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ret
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.section .init,"ax",@progbits
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movl 16(%ebp), %edx /* envp */
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movl 12(%ebp), %ecx /* argv */
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movl 8(%ebp), %eax /* argc */
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pushl %edx
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pushl %ecx
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pushl %eax
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call JUMPTARGET(__libc_init)
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addl $12, %esp
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/* Make sure __libc_subinit section is always present. */
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.section __libc_subinit, "a", @progbits
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.align 4
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.type __elf_set___libc_subinit_element__dummy_exit__, @object
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.size __elf_set___libc_subinit_element__dummy_exit__, 4
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__elf_set___libc_subinit_element__dummy_exit__:
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.long _dummy_exit
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/* Make sure __libc_atexit section is always present. */
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.section __libc_atexit, "a", @progbits
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.align 4
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.type __elf_set___libc_atexit_element__dummy_exit__, @object
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.size __elf_set___libc_atexit_element__dummy_exit__, 4
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__elf_set___libc_atexit_element__dummy_exit__:
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.long _dummy_exit
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72
sysdeps/unix/sysv/linux/i386/init-first.c
Normal file
72
sysdeps/unix/sysv/linux/i386/init-first.c
Normal file
@@ -0,0 +1,72 @@
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/* Initialization code run first thing by the ELF startup code. i386/Linux
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Copyright (C) 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <unistd.h>
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#include "fpu_control.h"
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extern void __libc_init (int, char **, char **);
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extern void __libc_global_ctors (void);
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static void
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init (int *data)
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{
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int argc = *data;
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char **argv = (void *) (data + 1);
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char **envp = &argv[argc + 1];
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/* Make sure we are not using iBSC2 personality. */
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asm ("int $0x80 # syscall no %0, arg %1"
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: : "a" (SYS_ify (personality)), "b" (0));
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/* Set the FPU control word to the proper default value. */
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__setfpucw (___fpu_control);
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__environ = envp;
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__libc_init (argc, argv, envp);
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}
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#ifdef PIC
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/* This function is called to initialize the shared C library.
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It is called just before the user _start code from i386/elf/start.S,
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with the stack set up as that code gets it. */
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/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT
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pointer in the dynamic section based solely on that. It is convention
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for this function to be in the `.init' section, but the symbol name is
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the only thing that really matters!! */
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/*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/
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void
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_init (int argc, ...)
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{
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init (&argc);
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__libc_global_ctors ();
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}
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#endif
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void
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__libc_init_first (int argc __attribute__ ((unused)), ...)
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{
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#ifndef PIC
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init (&argc);
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#endif
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}
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