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a8922de8c7
Fri Aug 9 17:38:58 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/sys/timex.h: Include <sys/time.h> to get `struct timeval'. * sysdeps/unix/sysv/linux/sys/acct.h: Get time_t from <time.h>. * sysdeps/unix/sysv/linux/sys/module.h: Get size_t from <stddef.h>. * sysdeps/unix/sysv/linux/sys/io.h: Get definition of __P. * sysdeps/unix/sysv/linux/sys/klog.h: Likewise. * gmon/sys/gmon.h: Include <sys/types.h> to get u_long. * sysdeps/unix/sysv/linux/direntry.h: Complete types in <linux/dirent.h>. * io/fts.h: Include <sys/types.h> to get dev_t. Reported by Matthias Urlichs. * sysdeps/posix/tempname.c [USE_IN_LIBIO]: Don't clear _IO_file_flags. It's the same as _flags. Reported by Miquel van Smoorenburg <miquels@Q.cistron.nl>. Wed Aug 7 19:38:47 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/m68k/resourcebits.h: Add RLIMIT_AS.
103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
/* Initialization code run first thing by the ELF startup code. Linux version.
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Copyright (C) 1995, 1996 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 <sysdep.h>
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#include <fpu_control.h>
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#include <linux/personality.h>
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#include "init-first.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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/* The function is called from assembly stubs the compiler can't see. */
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static void init (void *) __attribute__ ((unused));
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extern int __libc_is_static;
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#ifdef PIC
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weak_extern (__libc_is_static)
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#endif
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static void
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init (void *data)
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{
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extern int __personality (int);
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int argc = *(long *)data;
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char **argv = (char **)data + 1;
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char **envp = &argv[argc + 1];
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/* XXX Another gcc bug. We marked the function as `unused' but it
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is still optimized away. */
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volatile void *foo __attribute__ ((unused)) = &init;
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#ifdef PIC
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if (&__libc_is_static != NULL)
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#endif
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{
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#ifdef PIC
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/* We must not call `personality' twice. */
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if (__libc_is_static == 0)
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#endif
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{
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/* The `personality' system call takes one argument that
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chooses the "personality", i.e. the set of system calls
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and such. We must make this call first thing to disable
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emulation of some other system that might have been
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enabled by default based on the executable format. */
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__personality (PER_LINUX);
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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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}
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/* We set LIBC_IS_STATIC to a value > 0 for the static library
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and < 0 for the shared library. This information might be
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useful for the running program but it is mainly necessary for
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the above `if' statement. */
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#ifdef PIC
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__libc_is_static = -1;
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#else
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__libc_is_static = 1;
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#endif
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}
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__environ = envp;
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__libc_init (argc, argv, envp);
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#ifdef PIC
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__libc_global_ctors ();
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#endif
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}
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#ifdef PIC
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SYSDEP_CALL_INIT(_init, init);
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void
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__libc_init_first (void)
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{
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}
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#else
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SYSDEP_CALL_INIT(__libc_init_first, init);
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#endif
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