glibc/sysdeps/unix/sysv/irix4/start.c

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Sun Feb 19 17:46:13 1995 Roland McGrath <roland@duality.gnu.ai.mit.edu> * posix/Makefile (aux): Add environ. * posix/environ.c: New file. * sysdeps/unix/sparc/start.c: Remove __environ definition. * sysdeps/unix/start.c: Likewise. * sysdeps/unix/sysv/irix4/start.c: Likewise. * sysdeps/mach/hurd/start.c: Likewise. * sysdeps/mach/start.c: Likewise. * sysdeps/stub/start.c: Likewise. * sysdeps/unix/make_errlist.c: In produced program, test HAVE_WEAK_SYMBOLS instead of HAVE_GNU_LD. * sysdeps/unix/sysv/sysv4/dup2.c: Fix #include of renamed file. Remove extra weak alias. * sysdeps/unix/sysv/sysv4/sigaltstack.S: Fix unsquashed file name in #include. * libc-symbols.h: Put comment around ^L to pacify Solaris as. * sysdeps/posix/Makefile (cded-objdir-includes): New variable replaced cded-objdir-CPPFLAGS; transform $(+includes) instead of $(CPPFLAGS). (mk-stdiolim): Use it instead. * mach/mach_init.c (__vm_page_size): Make it initialized. It does not work to make a weak alias to a bss symbol. * stdio/Makefile (distribute): Remove mpn-copy.mk; add gen-mpn-copy. (tests): Add test-fwrite. * stdio/test-fwrite.c: New file. * stdlib/stdlib.h [__USE_GNU]: Declare strtof, strtold, __strtof, __strtold. * Makefile (autoconf-it): New canned sequence. Do cvs commit if there is a CVS directory. (configure, %/configure): Use $(autoconf-it) for cmds. * Make-dist: Likewise. * Makerules ($(gpl2lgpl)): Likewise. inlines cause trouble for files defining global register variables. * stdio/vfprintf.c: Set PREC to zero for %. without following digit.
1995-02-20 01:08:14 +00:00
/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
1995-02-18 01:27:10 +00:00
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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#ifndef __GNUC__
#error This file uses GNU C extensions; you must compile with GCC.
#endif
/* The first piece of initialized data. */
int __data_start = 0;
VOLATILE int errno = 0;
extern void EXFUN(__libc_init, (int argc, char **argv, char **envp));
extern int EXFUN(main, (int argc, char **argv, char **envp));
/* Use the stack pointer to access the arguments. This assumes that
we can guess how big the frame will be. */
register long int sp asm("sp");
#ifdef __OPTIMIZE__
#define STACKSIZE 8
#else
#define STACKSIZE 10
#endif
void
DEFUN_VOID(__start)
{
int argc;
char **argv, **envp;
/* Set up the global pointer. */
asm volatile ("la $28,_gp");
argc = ((int *) sp)[STACKSIZE];
argv = (char **) &((int *) sp)[STACKSIZE + 1];
envp = &argv[argc + 1];
__environ = envp;
__libc_init (argc, argv, envp);
errno = 0;
exit (main (argc, argv, envp));
}