diff options
Diffstat (limited to 'libc/hurd-l4/sysdeps/l4/hurd/init-first.c')
-rw-r--r-- | libc/hurd-l4/sysdeps/l4/hurd/init-first.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/libc/hurd-l4/sysdeps/l4/hurd/init-first.c b/libc/hurd-l4/sysdeps/l4/hurd/init-first.c new file mode 100644 index 0000000..f002712 --- /dev/null +++ b/libc/hurd-l4/sysdeps/l4/hurd/init-first.c @@ -0,0 +1,124 @@ +/* Initialization code run first thing by the ELF startup code. Linux version. + Copyright (C) 1995-1999,2000,01,02,03,2004 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 <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <unistd.h> +#include <sysdep.h> +#include <fpu_control.h> +#include <sys/param.h> +#include <sys/types.h> +#include <libc-internal.h> + +#include <ldsodefs.h> + +/* The function is called from assembly stubs the compiler can't see. */ +static void init (int, char **, char **) __attribute__ ((used)); + +/* 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; + +/* Remember the command line argument and enviroment contents for + later calls of initializers for dynamic libraries. */ +int __libc_argc attribute_hidden; +char **__libc_argv attribute_hidden; + + +static void +init (int argc, char **argv, char **envp) +{ +#ifdef USE_NONOPTION_FLAGS + extern void __getopt_clean_environment (char **); +#endif + + __libc_multiple_libcs = &_dl_starting_up && !_dl_starting_up; + + /* Make sure we don't initialize twice. */ + if (!__libc_multiple_libcs) + { + /* Set the FPU control word to the proper default value if the + kernel would use a different value. (In a static program we + don't have this information.) */ +#ifdef SHARED + if (__fpu_control != GLRO(dl_fpu_control)) +#endif + __setfpucw (__fpu_control); + } + + /* Save the command-line arguments. */ + __libc_argc = argc; + __libc_argv = argv; + __environ = envp; + +#ifndef SHARED + __libc_init_secure (); + + /* First the initialization which normally would be done by the + dynamic linker. */ + _dl_non_dynamic_init (); +#endif + + __init_misc (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 + +#ifdef SHARED + __libc_global_ctors (); +#endif +} + +#ifdef SHARED + +strong_alias (init, _init); + +extern void __libc_init_first (void); + +void +__libc_init_first (void) +{ +} + +#else +extern void __libc_init_first (int argc, char **argv, char **envp); + +void +__libc_init_first (int argc, char **argv, char **envp) +{ + init (argc, argv, envp); +} +#endif + + +/* This function is defined here so that if this file ever gets into + ld.so we will get a link error. Having this file silently included + in ld.so causes disaster, because the _init definition above will + cause ld.so to gain an init function, which is not a cool thing. */ + +extern void _dl_start (void) __attribute__ ((noreturn)); + +void +_dl_start (void) +{ + abort (); +} |