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Diffstat (limited to 'REORG.TODO/csu/init-first.c')
-rw-r--r-- | REORG.TODO/csu/init-first.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/REORG.TODO/csu/init-first.c b/REORG.TODO/csu/init-first.c new file mode 100644 index 0000000000..510ea2db1e --- /dev/null +++ b/REORG.TODO/csu/init-first.c @@ -0,0 +1,102 @@ +/* Initialization code run first thing by the ELF startup code. Common version + Copyright (C) 1995-2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <ctype.h> +#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> + +/* Set nonzero if we have to be prepared for more than 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; + + +void +__libc_init_first (int argc, char **argv, char **envp) +{ +#ifdef SHARED + /* For DSOs we do not need __libc_init_first but instead _init. */ +} + +void +attribute_hidden +_init (int argc, char **argv, char **envp) +{ +#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. */ + if (__fpu_control != GLRO(dl_fpu_control)) + __setfpucw (__fpu_control); + } + + /* Save the command-line arguments. */ + __libc_argc = argc; + __libc_argv = argv; + __environ = envp; + +#ifndef SHARED + /* First the initialization which normally would be done by the + dynamic linker. */ + _dl_non_dynamic_init (); +#endif + +#ifdef VDSO_SETUP + VDSO_SETUP (); +#endif + + __init_misc (argc, argv, envp); + + /* Initialize ctype data. */ + __ctype_init (); + +#if defined SHARED && !defined NO_CTORS_DTORS_SECTIONS + __libc_global_ctors (); +#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 (); +} |