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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /csu/libc-start.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'csu/libc-start.c')
-rw-r--r--csu/libc-start.c263
1 files changed, 0 insertions, 263 deletions
diff --git a/csu/libc-start.c b/csu/libc-start.c
deleted file mode 100644
index 194db6b..0000000
--- a/csu/libc-start.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/* Copyright (C) 1998-2003, 2004, 2005 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 <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <ldsodefs.h>
-#include <bp-start.h>
-#include <bp-sym.h>
-
-extern void __libc_init_first (int argc, char **argv, char **envp);
-
-extern int __libc_multiple_libcs;
-
-#include <tls.h>
-#ifndef SHARED
-# include <dl-osinfo.h>
-extern void __pthread_initialize_minimal (void)
-# if !(USE_TLS - 0) && !defined NONTLS_INIT_TP
- __attribute__ ((weak))
-# endif
- ;
-# ifndef THREAD_SET_STACK_GUARD
-/* Only exported for architectures that don't store the stack guard canary
- in thread local area. */
-uintptr_t __stack_chk_guard attribute_relro;
-# endif
-#endif
-
-#ifdef HAVE_PTR_NTHREADS
-/* We need atomic operations. */
-# include <atomic.h>
-#endif
-
-
-#ifdef LIBC_START_MAIN
-# ifdef LIBC_START_DISABLE_INLINE
-# define STATIC static
-# else
-# define STATIC static inline __attribute__ ((always_inline))
-# endif
-#else
-# define STATIC
-# define LIBC_START_MAIN BP_SYM (__libc_start_main)
-#endif
-
-#ifdef MAIN_AUXVEC_ARG
-/* main gets passed a pointer to the auxiliary. */
-# define MAIN_AUXVEC_DECL , void *
-# define MAIN_AUXVEC_PARAM , auxvec
-#else
-# define MAIN_AUXVEC_DECL
-# define MAIN_AUXVEC_PARAM
-#endif
-
-STATIC int LIBC_START_MAIN (int (*main) (int, char **, char **
- MAIN_AUXVEC_DECL),
- int argc,
- char *__unbounded *__unbounded ubp_av,
-#ifdef LIBC_START_MAIN_AUXVEC_ARG
- ElfW(auxv_t) *__unbounded auxvec,
-#endif
- __typeof (main) init,
- void (*fini) (void),
- void (*rtld_fini) (void),
- void *__unbounded stack_end)
- __attribute__ ((noreturn));
-
-
-/* Note: the fini parameter is ignored here for shared library. It
- is registered with __cxa_atexit. This had the disadvantage that
- finalizers were called in more than one place. */
-STATIC int
-LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL),
- int argc, char *__unbounded *__unbounded ubp_av,
-#ifdef LIBC_START_MAIN_AUXVEC_ARG
- ElfW(auxv_t) *__unbounded auxvec,
-#endif
- __typeof (main) init,
- void (*fini) (void),
- void (*rtld_fini) (void), void *__unbounded stack_end)
-{
-#if __BOUNDED_POINTERS__
- char **argv;
-#else
-# define argv ubp_av
-#endif
-
- /* Result of the 'main' function. */
- int result;
-
- __libc_multiple_libcs = &_dl_starting_up && !_dl_starting_up;
-
-#ifndef SHARED
- char *__unbounded *__unbounded ubp_ev = &ubp_av[argc + 1];
-
- INIT_ARGV_and_ENVIRON;
-
- /* Store the lowest stack address. This is done in ld.so if this is
- the code for the DSO. */
- __libc_stack_end = stack_end;
-
-# ifdef HAVE_AUX_VECTOR
- /* First process the auxiliary vector since we need to find the
- program header to locate an eventually present PT_TLS entry. */
-# ifndef LIBC_START_MAIN_AUXVEC_ARG
- ElfW(auxv_t) *__unbounded auxvec;
- {
- char *__unbounded *__unbounded evp = ubp_ev;
- while (*evp++ != NULL)
- ;
- auxvec = (ElfW(auxv_t) *__unbounded) evp;
- }
-# endif
- _dl_aux_init (auxvec);
-# endif
-# ifdef DL_SYSDEP_OSCHECK
- if (!__libc_multiple_libcs)
- {
- /* This needs to run to initiliaze _dl_osversion before TLS
- setup might check it. */
- DL_SYSDEP_OSCHECK (__libc_fatal);
- }
-# endif
-
- /* Initialize the thread library at least a bit since the libgcc
- functions are using thread functions if these are available and
- we need to setup errno. If there is no thread library and we
- handle TLS the function is defined in the libc to initialized the
- TLS handling. */
-# if !(USE_TLS - 0) && !defined NONTLS_INIT_TP
- if (__pthread_initialize_minimal)
-# endif
- __pthread_initialize_minimal ();
-#endif
-
-# ifndef SHARED
- /* Set up the stack checker's canary. */
- uintptr_t stack_chk_guard = _dl_setup_stack_chk_guard ();
-# ifdef THREAD_SET_STACK_GUARD
- THREAD_SET_STACK_GUARD (stack_chk_guard);
-# else
- __stack_chk_guard = stack_chk_guard;
-# endif
-#endif
-
- /* Register the destructor of the dynamic linker if there is any. */
- if (__builtin_expect (rtld_fini != NULL, 1))
- __cxa_atexit ((void (*) (void *)) rtld_fini, NULL, NULL);
-
-#ifndef SHARED
- /* Call the initializer of the libc. This is only needed here if we
- are compiling for the static library in which case we haven't
- run the constructors in `_dl_start_user'. */
- __libc_init_first (argc, argv, __environ);
-
- /* Register the destructor of the program, if any. */
- if (fini)
- __cxa_atexit ((void (*) (void *)) fini, NULL, NULL);
-
- /* Some security at this point. Prevent starting a SUID binary where
- the standard file descriptors are not opened. We have to do this
- only for statically linked applications since otherwise the dynamic
- loader did the work already. */
- if (__builtin_expect (__libc_enable_secure, 0))
- __libc_check_standard_fds ();
-#endif
-
- /* Call the initializer of the program, if any. */
-#ifdef SHARED
- if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_IMPCALLS, 0))
- GLRO(dl_debug_printf) ("\ninitialize program: %s\n\n", argv[0]);
-#endif
- if (init)
- (*init) (argc, argv, __environ MAIN_AUXVEC_PARAM);
-
-#ifdef SHARED
- /* Auditing checkpoint: we have a new object. */
- if (__builtin_expect (GLRO(dl_naudit) > 0, 0))
- {
- struct audit_ifaces *afct = GLRO(dl_audit);
- struct link_map *head = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
- for (unsigned int cnt = 0; cnt < GLRO(dl_naudit); ++cnt)
- {
- if (afct->preinit != NULL)
- afct->preinit (&head->l_audit[cnt].cookie);
-
- afct = afct->next;
- }
- }
-#endif
-
-#ifdef SHARED
- if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_IMPCALLS, 0))
- GLRO(dl_debug_printf) ("\ntransferring control: %s\n\n", argv[0]);
-#endif
-
-#ifdef HAVE_CLEANUP_JMP_BUF
- /* Memory for the cancellation buffer. */
- struct pthread_unwind_buf unwind_buf;
-
- int not_first_call;
- not_first_call = setjmp ((struct __jmp_buf_tag *) unwind_buf.cancel_jmp_buf);
- if (__builtin_expect (! not_first_call, 1))
- {
- struct pthread *self = THREAD_SELF;
-
- /* Store old info. */
- unwind_buf.priv.data.prev = THREAD_GETMEM (self, cleanup_jmp_buf);
- unwind_buf.priv.data.cleanup = THREAD_GETMEM (self, cleanup);
-
- /* Store the new cleanup handler info. */
- THREAD_SETMEM (self, cleanup_jmp_buf, &unwind_buf);
-
- /* Run the program. */
- result = main (argc, argv, __environ MAIN_AUXVEC_PARAM);
- }
- else
- {
- /* Remove the thread-local data. */
-# ifdef SHARED
- __libc_pthread_functions.ptr__nptl_deallocate_tsd ();
-# else
- extern void __nptl_deallocate_tsd (void) __attribute ((weak));
- __nptl_deallocate_tsd ();
-# endif
-
- /* One less thread. Decrement the counter. If it is zero we
- terminate the entire process. */
- result = 0;
-# ifdef SHARED
- unsigned int *const ptr = __libc_pthread_functions.ptr_nthreads;
-# else
- extern unsigned int __nptl_nthreads __attribute ((weak));
- unsigned int *const ptr = &__nptl_nthreads;
-# endif
-
- if (! atomic_decrement_and_test (ptr))
- /* Not much left to do but to exit the thread, not the process. */
- __exit_thread (0);
- }
-#else
- /* Nothing fancy, just call the function. */
- result = main (argc, argv, __environ MAIN_AUXVEC_PARAM);
-#endif
-
- exit (result);
-}