glibc/sysdeps/generic/init-first.c
Roland McGrath 9ae1033217 * Makerules (check-abi-%): Use two rules for $(common-objpfx) and
$(objpfx) directories, and get rid of vpath directives.  The previous
	arrangement resulted in files being written to the source directories
	when run in a clean build.  Find all .abilist files in $(..)abilist/.
	(update-abi-%): Likewise.
	(generated): Don't add .symlist files, they'll be intermediates.

	* sysdeps/generic/init-first.c: Add a comment.

	* elf/Makefile ($(objpfx)ld.so): Pass -z defs in link.

	* scripts/gen-as-const.awk: Grok lone "--" as a separator between
	#includes and expressions.

	* scripts/merge-abilist.awk: Omit cpu-.*-os.*/modifier from merged
	config list when it already contains cpu-.*-os.* without / part.

	* Makerules (sed-remove-dotdot): New variable.
	($(common-objpfx)%.make): Use it.  Depend on $(before-compile).
	($(common-objpfx)%.h $(common-objpfx)%.h.d): Likewise.
	(check-abi-config): New variable, append /tls or /notls to the tuple.
	(check-abi-%): Use that for -v config value.
	Find .abilist files in abilist/libfoo.abilist, not in subdir.
	* Rules: Move bits/stdio_lim.h generation rules to Makerules.
2003-01-15 08:08:20 +00:00

60 lines
1.9 KiB
C

/* Initialization code run first thing by the ELF startup code. Stub version.
Copyright (C) 1995, 1997, 1998, 2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <unistd.h>
#include <sys/types.h>
/* Set nonzero if we have to be prepared for more then one libc being
used in the process. Safe assumption if initializer never runs. */
int __libc_multiple_libcs attribute_hidden = 1;
extern void __libc_init (int, char **, char **);
#ifdef USE_NONOPTION_FLAGS
extern void __getopt_clean_environment (char **);
#endif
#ifdef SHARED
void
__libc_init_first (void)
{
}
#endif
#ifdef SHARED
/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT
pointer in the dynamic section based solely on that. It is convention
for this function to be in the `.init' section, but the symbol name is
the only thing that really matters!! */
void _init
#else
void __libc_init_first
#endif
(int argc, char *arg0, ...)
{
char **argv = &arg0, **envp = &argv[argc + 1];
__environ = envp;
__libc_init (argc, argv, envp);
#ifdef USE_NONOPTION_FLAGS
/* This is a hack to make the special getopt in GNU libc working. */
__getopt_clean_environment (envp);
#endif
}