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17427edd1f
2000-11-20 Ulrich Drepper <drepper@redhat.com> * csu/gmon-start.c: Always have prototype for __gmon_start. * csu/version.c: Add prototypes for __libc_print_version and __libc_main. * iconv/gconv.c: Include gconv_int.h and gconv.h. * iconv/gconv.h (struct __gconv_step): Remove const from __from_name and __to_name. * iconv/gconv_builtin.h: Add ASCII module definitions. * iconv/gconv_conf.c (__gconv_path_elem): Remove const. (add_module): Add cast to avoid warning. Rework construction of strings for new module. * iconv/gconv_db.c (__gconv_alias_compare): Make s1 and s2 const. (derivation_compare): Likewise. * iconv/gconv_dl.c (do_release_shlib): Remove const from nodep. (__gconv_release_shlib): Cast do_release_shlib as parameter for twalk. * iconv/gconv_int.h (__gconv_path_elem): Remove const. (struct gconv_alias): Remove const from fromname and toname. * iconv/gconv_simple.c: Include gconv_builtin.h to get prototypes for loop functions. (internal_ucs4_loop): Use correct const-ness. (ucs4_internal_loop): Likewise. (internal_ucs4le_loop): Likewise. (ucs4le_internal_loop_single): Likewise. * iconv/gconv_trans.c (__gconv_transliterate): Make from_idx, from_tbl, to_idx, to_tbl, winbuf, winbufend const. Change casts in assignments appropriately. (struct known_trans): Remove const from fname. (trans_compare): Make s1 and s2 const. * iconv/loop.c (LOOPFC): Make outend parameter const. Add cast to avoid warning. * iconv/skeleton.c: Remove cast in calls of loop functions. * iconvdata/gconv-modules: Remove US-ASCII definitions. * iconvdata/iso646.c: Remove US_ASCII support. * include/set-hooks.h (DEFINE_HOOK): Also generate prototype. * include/unistd.h: Add __libc_check_standard_fds prototype. * string/bits/string2.h (__mempcpy_args): Add const to casts. * sysdeps/generic/initfini.c: Add prototypes for dummy, _init, and _fini. * sysdeps/generic/libc-start.c: Add prototype for __libc_start_main. * sysdeps/i386/i486/bits/string.h (strcmp): Add const to casts. * sysdeps/unix/sysv/linux/dl-osinfo.h (dl_fatal): Add cast to avoid warning. * sysdeps/unix/sysv/linux/init-first.c: Add prototypes for __libc_init_first and _dl_start. * sysdeps/unix/sysv/linux/mips/clone.S: Fix comments.
141 lines
3.9 KiB
C
141 lines
3.9 KiB
C
/* Initialization code run first thing by the ELF startup code. Linux version.
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Copyright (C) 1995-1999, 2000 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 not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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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 <sys/param.h>
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#include <sys/types.h>
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#include "kernel-features.h"
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#ifndef SHARED
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# include "dl-osinfo.h"
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#endif
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extern void __libc_init_secure (void);
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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 (int, char **, char **) __attribute__ ((unused));
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/* The function we use to get the kernel revision. */
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extern int __sysctl (int *name, int nlen, void *oldval, size_t *oldlenp,
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void *newval, size_t newlen);
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extern int _dl_starting_up;
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weak_extern (_dl_starting_up)
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extern fpu_control_t _dl_fpu_control;
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extern int _dl_fpu_control_set;
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/* Set nonzero if we have to be prepared for more then one libc being
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used in the process. Safe assumption if initializer never runs. */
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int __libc_multiple_libcs = 1;
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/* Remember the command line argument and enviroment contents for
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later calls of initializers for dynamic libraries. */
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int __libc_argc;
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char **__libc_argv;
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static void
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init (int argc, char **argv, char **envp)
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{
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extern void __getopt_clean_environment (char **);
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/* The next variable is only here to work around a bug in gcc <= 2.7.2.2.
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If the address would be taken inside the expression the optimizer
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would try to be too smart and throws it away. Grrr. */
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int *dummy_addr = &_dl_starting_up;
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__libc_multiple_libcs = dummy_addr && !_dl_starting_up;
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/* Make sure we don't initialize twice. */
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if (!__libc_multiple_libcs)
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{
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#ifndef SHARED
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DL_SYSDEP_OSCHECK (__libc_fatal);
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#endif
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/* Set the FPU control word to the proper default value if the
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kernel would use a different value. (In a static program we
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don't have this information.) */
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#ifdef SHARED
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if (__fpu_control != _dl_fpu_control)
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#endif
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__setfpucw (__fpu_control);
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}
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/* Save the command-line arguments. */
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__libc_argc = argc;
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__libc_argv = argv;
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__environ = envp;
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#ifndef SHARED
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__libc_init_secure ();
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#endif
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__libc_init (argc, argv, envp);
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/* This is a hack to make the special getopt in GNU libc working. */
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__getopt_clean_environment (envp);
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#ifdef SHARED
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__libc_global_ctors ();
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#endif
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}
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#ifdef SHARED
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strong_alias (init, _init);
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extern void __libc_init_first (void);
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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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extern void __libc_init_first (int argc, char **argv, char **envp);
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void
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__libc_init_first (int argc, char **argv, char **envp)
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{
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init (argc, argv, envp);
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}
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#endif
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/* This function is defined here so that if this file ever gets into
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ld.so we will get a link error. Having this file silently included
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in ld.so causes disaster, because the _init definition above will
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cause ld.so to gain an init function, which is not a cool thing. */
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extern void _dl_start (void) __attribute__ ((noreturn));
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void
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_dl_start (void)
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{
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abort ();
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}
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