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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
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'csu')
-rw-r--r--csu/Makefile30
-rw-r--r--csu/check_fds.c102
-rw-r--r--csu/dso_handle.c5
-rw-r--r--csu/elf-init.c59
-rw-r--r--csu/errno.c53
-rw-r--r--csu/init-first.c59
-rw-r--r--csu/libc-start.c263
-rw-r--r--csu/libc-tls.c263
-rw-r--r--csu/munch-tmpl.c (renamed from csu/errno-loc.c)33
-rw-r--r--csu/munch.awk11
-rw-r--r--csu/start.c13
-rw-r--r--csu/sysdep.c2
-rw-r--r--csu/version.c4
13 files changed, 73 insertions, 824 deletions
diff --git a/csu/Makefile b/csu/Makefile
index 0e2ae07..fbbfe00 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -1,5 +1,5 @@
# Makefile for csu code for GNU C library.
-# Copyright (C) 1995-2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 1995-2003, 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
@@ -39,8 +39,8 @@ omit-deps = $(patsubst %.o,%,$(start-installed-name) g$(start-installed-name) \
b$(start-installed-name) $(csu-dummies) \
S$(start-installed-name))
install-lib = $(start-installed-name) g$(start-installed-name) $(csu-dummies)
-distribute = initfini.c gmon-start.c start.c defs.awk \
- abi-note.S init.c c not-cancel.h
+distribute = initfini.c gmon-start.c start.c defs.awk munch.awk \
+ abi-note.S init.c munch-tmpl.c not-cancel.h
generated = version-info.h
before-compile = $(objpfx)version-info.h
@@ -54,13 +54,11 @@ include ../Makeconfig
ifeq (yes,$(build-shared))
extra-objs += S$(start-installed-name)
install-lib += S$(start-installed-name)
-generated += start.os
endif
ifeq (yes,$(build-bounded))
extra-objs += b$(start-installed-name)
install-lib += b$(start-installed-name)
-generated += start.ob
endif
ifneq ($(start-installed-name),$(static-start-installed-name))
@@ -75,6 +73,19 @@ before-compile += $(objpfx)abi-tag.h
generated += abi-tag.h
endif
+ifneq (yes,$(gnu-ld))
+libc-init = munch-init
+$(objpfx)munch-init.c: munch.awk munch-tmpl.c $(+subdir_inits)
+ $(AWK) -f $< subdirs='$(+init_subdirs)' $(word 2,$^) > $@-t
+ mv -f $@-t $@
+generated += munch-init.c
+
+# All initialization source files.
++subdir_inits := $(wildcard $(foreach dir,$(subdirs),$(dir)/init-$(dir).c))
+# All subdirectories containing initialization source files.
++init_subdirs := $(patsubst %/,%,$(dir $(+subdir_inits)))
+endif
+
ifeq ($(have-initfini),yes)
CPPFLAGS += -DHAVE_INITFINI
@@ -95,7 +106,7 @@ $(crtstuff:%=$(objpfx)%.o): %.o: %.S $(objpfx)defs.h
CFLAGS-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time)
-vpath initfini.c $(sysdirs)
+vpath initfini.c $(full_config_sysdirs)
$(objpfx)initfini.s: initfini.c $(before-compile)
$(compile.c) -S $(CFLAGS-initfini.s) -finhibit-size-directive \
@@ -200,9 +211,8 @@ $(objpfx)abi-tag.h: $(..)abi-tags
if test -r $@.new; then mv -f $@.new $@; \
else echo >&2 'This configuration not matched in $<'; exit 1; fi
-all-Banner-files = $(wildcard $(addsuffix /Banner,\
- $(sort $(subdir-srcdirs) \
- $(sysdeps-srcdirs))))
+all-Banner-files = $(wildcard $(addsuffix /Banner, \
+ $(addprefix $(..), $(subdirs))))
$(objpfx)version-info.h: $(common-objpfx)config.make $(all-Banner-files)
$(make-target-directory)
(case $(config-os) in \
@@ -229,7 +239,7 @@ $(objpfx)version-info.h: $(common-objpfx)config.make $(all-Banner-files)
esac; \
files="$(all-Banner-files)"; \
if test -n "$$files"; then \
- printf '"Available extensions:\\n"\n'; \
+ echo "\"Available extensions:\\n\""; \
sed -e '/^#/d' -e 's/^[[:space:]]*/ /' \
-e 's/^\(.*\)$$/\"\1\\n\"/' $$files; \
fi) > $@T
diff --git a/csu/check_fds.c b/csu/check_fds.c
deleted file mode 100644
index 10ba3da..0000000
--- a/csu/check_fds.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/* Copyright (C) 2000, 2002, 2003, 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 <errno.h>
-#include <fcntl.h>
-#include <paths.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <sys/sysmacros.h>
-
-/* Try to get a machine dependent instruction which will make the
- program crash. This is used in case everything else fails. */
-#include <abort-instr.h>
-#ifndef ABORT_INSTRUCTION
-/* No such instruction is available. */
-# define ABORT_INSTRUCTION
-#endif
-
-#include <device-nrs.h>
-#include <not-cancel.h>
-
-
-/* Should other OSes (e.g., Hurd) have different versions which can
- be written in a better way? */
-static void
-check_one_fd (int fd, int mode)
-{
- /* Note that fcntl() with this parameter is not a cancellation point. */
- if (__builtin_expect (__libc_fcntl (fd, F_GETFD), 0) == -1
- && errno == EBADF)
- {
- const char *name;
- dev_t dev;
-
- /* For writable descriptors we use /dev/full. */
- if ((mode & O_ACCMODE) == O_WRONLY)
- {
- name = _PATH_DEV "full";
- dev = makedev (DEV_FULL_MAJOR, DEV_FULL_MINOR);
- }
- else
- {
- name = _PATH_DEVNULL;
- dev = makedev (DEV_NULL_MAJOR, DEV_NULL_MINOR);
- }
-
- /* Something is wrong with this descriptor, it's probably not
- opened. Open /dev/null so that the SUID program we are
- about to start does not accidently use this descriptor. */
- int nullfd = open_not_cancel (name, mode, 0);
-
- /* We are very paranoid here. With all means we try to ensure
- that we are actually opening the /dev/null device and nothing
- else.
-
- Note that the following code assumes that STDIN_FILENO,
- STDOUT_FILENO, STDERR_FILENO are the three lowest file
- decsriptor numbers, in this order. */
- struct stat64 st;
- if (__builtin_expect (nullfd != fd, 0)
- || __builtin_expect (__fxstat64 (_STAT_VER, fd, &st), 0) != 0
- || __builtin_expect (S_ISCHR (st.st_mode), 1) == 0
- || st.st_rdev != dev)
- /* We cannot even give an error message here since it would
- run into the same problems. */
- while (1)
- /* Try for ever and ever. */
- ABORT_INSTRUCTION;
- }
-}
-
-
-void
-__libc_check_standard_fds (void)
-{
- /* This is really paranoid but some people actually are. If /dev/null
- should happen to be a symlink to somewhere else and not the device
- commonly known as "/dev/null" we bail out. We can detect this with
- the O_NOFOLLOW flag for open() but only on some system. */
-#ifndef O_NOFOLLOW
-# define O_NOFOLLOW 0
-#endif
- /* Check all three standard file descriptors. */
- check_one_fd (STDIN_FILENO, O_WRONLY | O_NOFOLLOW);
- check_one_fd (STDOUT_FILENO, O_RDONLY | O_NOFOLLOW);
- check_one_fd (STDERR_FILENO, O_RDONLY | O_NOFOLLOW);
-}
diff --git a/csu/dso_handle.c b/csu/dso_handle.c
index fd295f2..04ed078 100644
--- a/csu/dso_handle.c
+++ b/csu/dso_handle.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2002 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
@@ -18,5 +18,4 @@
/* We have to define __dso_handle ourselves since we do not use gcc's
crtbegin files. */
-const void *const __dso_handle __attribute__ ((__visibility__ ("hidden")))
- = &__dso_handle;
+void *__dso_handle __attribute__ ((__visibility__ ("hidden"))) = &__dso_handle;
diff --git a/csu/elf-init.c b/csu/elf-init.c
index d0a518f..d4e0b3f 100644
--- a/csu/elf-init.c
+++ b/csu/elf-init.c
@@ -1,5 +1,5 @@
/* Startup support for ELF initializers/finalizers in the main executable.
- Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003 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
@@ -36,37 +36,16 @@
#include <stddef.h>
-
+#ifdef HAVE_INITFINI_ARRAY
/* These magic symbols are provided by the linker. */
-extern void (*__preinit_array_start []) (int, char **, char **)
- attribute_hidden;
-extern void (*__preinit_array_end []) (int, char **, char **)
- attribute_hidden;
-extern void (*__init_array_start []) (int, char **, char **)
- attribute_hidden;
-extern void (*__init_array_end []) (int, char **, char **)
- attribute_hidden;
+extern void (*__preinit_array_start []) (void) attribute_hidden;
+extern void (*__preinit_array_end []) (void) attribute_hidden;
+extern void (*__init_array_start []) (void) attribute_hidden;
+extern void (*__init_array_end []) (void) attribute_hidden;
extern void (*__fini_array_start []) (void) attribute_hidden;
extern void (*__fini_array_end []) (void) attribute_hidden;
-
-#if defined HAVE_VISIBILITY_ATTRIBUTE \
- && (defined SHARED || defined LIBC_NONSHARED)
-# define hidden_undef_2(x) #x
-# define hidden_undef_1(x) hidden_undef_2 (x)
-# define hidden_undef(x) \
- __asm (hidden_undef_1 (ASM_GLOBAL_DIRECTIVE) " " #x); \
- __asm (".hidden " #x);
-#else
-# define hidden_undef(x)
#endif
-hidden_undef (__preinit_array_start)
-hidden_undef (__preinit_array_end)
-hidden_undef (__init_array_start)
-hidden_undef (__init_array_end)
-hidden_undef (__fini_array_start)
-hidden_undef (__fini_array_end)
-
/* These function symbols are provided for the .init/.fini section entry
points automagically by the linker. */
extern void _init (void);
@@ -78,39 +57,43 @@ extern void _fini (void);
the libc.a module in that it doesn't call the preinit array. */
void
-__libc_csu_init (int argc, char **argv, char **envp)
+__libc_csu_init (void)
{
+#ifdef HAVE_INITFINI_ARRAY
/* For dynamically linked executables the preinit array is executed by
the dynamic linker (before initializing any shared object. */
-#ifndef LIBC_NONSHARED
+# ifndef LIBC_NONSHARED
/* For static executables, preinit happens rights before init. */
{
const size_t size = __preinit_array_end - __preinit_array_start;
size_t i;
for (i = 0; i < size; i++)
- (*__preinit_array_start [i]) (argc, argv, envp);
+ (*__preinit_array_start [i]) ();
}
+# endif
#endif
_init ();
- const size_t size = __init_array_end - __init_array_start;
- for (size_t i = 0; i < size; i++)
- (*__init_array_start [i]) (argc, argv, envp);
+#ifdef HAVE_INITFINI_ARRAY
+ {
+ const size_t size = __init_array_end - __init_array_start;
+ size_t i;
+ for (i = 0; i < size; i++)
+ (*__init_array_start [i]) ();
+ }
+#endif
}
-/* This function should not be used anymore. We run the executable's
- destructor now just like any other. We cannot remove the function,
- though. */
void
__libc_csu_fini (void)
{
-#ifndef LIBC_NONSHARED
+#ifdef HAVE_INITFINI_ARRAY
size_t i = __fini_array_end - __fini_array_start;
while (i-- > 0)
(*__fini_array_start [i]) ();
+#endif
_fini ();
-#endif
}
diff --git a/csu/errno.c b/csu/errno.c
deleted file mode 100644
index 03d661b..0000000
--- a/csu/errno.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Definition of `errno' variable. Canonical version.
- Copyright (C) 2002, 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 <errno.h>
-#include <tls.h>
-#include <dl-sysdep.h>
-#undef errno
-
-#if RTLD_PRIVATE_ERRNO
-
-/* Code compiled for rtld refers only to this name. */
-int rtld_errno attribute_hidden;
-
-#elif USE___THREAD
-
-__thread int errno;
-extern __thread int __libc_errno __attribute__ ((alias ("errno")))
- attribute_hidden;
-
-#else
-
-/* This differs from plain `int errno;' in that it doesn't create
- a common definition, but a plain symbol that resides in .bss,
- which can have an alias. */
-int errno __attribute__ ((nocommon));
-strong_alias (errno, _errno)
-
-/* We declare these with compat_symbol so that they are not visible at
- link time. Programs must use the accessor functions. RTLD is special,
- since it's not exported from there at any time. */
-# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING
-# include <shlib-compat.h>
-compat_symbol (libc, errno, errno, GLIBC_2_0);
-compat_symbol (libc, _errno, _errno, GLIBC_2_0);
-# endif
-
-#endif
diff --git a/csu/init-first.c b/csu/init-first.c
deleted file mode 100644
index fa21274..0000000
--- a/csu/init-first.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/* Initialization code run first thing by the ELF startup code. Stub version.
- Copyright (C) 1995, 1997, 1998, 2001, 2002 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 <unistd.h>
-#include <sys/types.h>
-
-/* 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;
-
-extern void __libc_init (int, char **, char **);
-#ifdef USE_NONOPTION_FLAGS
-extern void __getopt_clean_environment (char **);
-#endif
-
-#ifdef SHARED
-void
-__libc_init_first (void)
-{
-}
-#endif
-
-#ifdef SHARED
-/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT
- pointer in the dynamic section based solely on that. It is convention
- for this function to be in the `.init' section, but the symbol name is
- the only thing that really matters!! */
-void _init
-#else
-void __libc_init_first
-#endif
-(int argc, char *arg0, ...)
-{
- char **argv = &arg0, **envp = &argv[argc + 1];
-
- __environ = envp;
- __libc_init (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
-}
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);
-}
diff --git a/csu/libc-tls.c b/csu/libc-tls.c
deleted file mode 100644
index 3544e39..0000000
--- a/csu/libc-tls.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/* Initialization code for TLS in statically linked application.
- Copyright (C) 2002, 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 <errno.h>
-#include <ldsodefs.h>
-#include <tls.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <sys/param.h>
-
-
-#ifdef SHARED
- #error makefile bug, this file is for static only
-#endif
-
-#ifdef USE_TLS
-extern ElfW(Phdr) *_dl_phdr;
-extern size_t _dl_phnum;
-
-
-static dtv_t static_dtv[2 + TLS_SLOTINFO_SURPLUS];
-
-
-static struct
-{
- struct dtv_slotinfo_list si;
- /* The dtv_slotinfo_list data structure does not include the actual
- information since it is defined as an array of size zero. We define
- here the necessary entries. Note that it is not important whether
- there is padding or not since we will always access the information
- through the 'si' element. */
- struct dtv_slotinfo info[2 + TLS_SLOTINFO_SURPLUS];
-} static_slotinfo;
-
-/* Fake link map for the application. */
-static struct link_map static_map;
-
-
-/* Highest dtv index currently needed. */
-size_t _dl_tls_max_dtv_idx;
-/* Flag signalling whether there are gaps in the module ID allocation. */
-bool _dl_tls_dtv_gaps;
-/* Information about the dtv slots. */
-struct dtv_slotinfo_list *_dl_tls_dtv_slotinfo_list;
-/* Number of modules in the static TLS block. */
-size_t _dl_tls_static_nelem;
-/* Size of the static TLS block. Giving this initialized value
- preallocates some surplus bytes in the static TLS area. */
-size_t _dl_tls_static_size = 2048;
-/* Size actually allocated in the static TLS block. */
-size_t _dl_tls_static_used;
-/* Alignment requirement of the static TLS block. */
-size_t _dl_tls_static_align;
-
-/* Generation counter for the dtv. */
-size_t _dl_tls_generation;
-
-
-/* Additional definitions needed by TLS initialization. */
-#ifdef TLS_INIT_HELPER
-TLS_INIT_HELPER
-#endif
-
-static inline void
-init_slotinfo (void)
-{
- /* Create the slotinfo list. */
- static_slotinfo.si.len = (((char *) (&static_slotinfo + 1)
- - (char *) &static_slotinfo.si.slotinfo[0])
- / sizeof static_slotinfo.si.slotinfo[0]);
- // static_slotinfo.si.next = NULL; already zero
-
- /* The slotinfo list. Will be extended by the code doing dynamic
- linking. */
- GL(dl_tls_max_dtv_idx) = 1;
- GL(dl_tls_dtv_slotinfo_list) = &static_slotinfo.si;
-}
-
-static inline void
-init_static_tls (size_t memsz, size_t align)
-{
- /* That is the size of the TLS memory for this object. The initialized
- value of _dl_tls_static_size is provided by dl-open.c to request some
- surplus that permits dynamic loading of modules with IE-model TLS. */
- GL(dl_tls_static_size) = roundup (memsz + GL(dl_tls_static_size),
- TLS_TCB_ALIGN);
- GL(dl_tls_static_used) = memsz;
- /* The alignment requirement for the static TLS block. */
- GL(dl_tls_static_align) = align;
- /* Number of elements in the static TLS block. */
- GL(dl_tls_static_nelem) = GL(dl_tls_max_dtv_idx);
-}
-
-void
-__libc_setup_tls (size_t tcbsize, size_t tcbalign)
-{
- void *tlsblock;
- size_t memsz = 0;
- size_t filesz = 0;
- void *initimage = NULL;
- size_t align = 0;
- size_t max_align = tcbalign;
- size_t tcb_offset;
- ElfW(Phdr) *phdr;
-
- /* Look through the TLS segment if there is any. */
- if (_dl_phdr != NULL)
- for (phdr = _dl_phdr; phdr < &_dl_phdr[_dl_phnum]; ++phdr)
- if (phdr->p_type == PT_TLS)
- {
- /* Remember the values we need. */
- memsz = phdr->p_memsz;
- filesz = phdr->p_filesz;
- initimage = (void *) phdr->p_vaddr;
- align = phdr->p_align;
- if (phdr->p_align > max_align)
- max_align = phdr->p_align;
- break;
- }
-
- /* We have to set up the TCB block which also (possibly) contains
- 'errno'. Therefore we avoid 'malloc' which might touch 'errno'.
- Instead we use 'sbrk' which would only uses 'errno' if it fails.
- In this case we are right away out of memory and the user gets
- what she/he deserves.
-
- The initialized value of _dl_tls_static_size is provided by dl-open.c
- to request some surplus that permits dynamic loading of modules with
- IE-model TLS. */
-# if TLS_TCB_AT_TP
- tcb_offset = roundup (memsz + GL(dl_tls_static_size), tcbalign);
- tlsblock = __sbrk (tcb_offset + tcbsize + max_align);
-# elif TLS_DTV_AT_TP
- tcb_offset = roundup (tcbsize, align ?: 1);
- tlsblock = __sbrk (tcb_offset + memsz + max_align
- + TLS_PRE_TCB_SIZE + GL(dl_tls_static_size));
- tlsblock += TLS_PRE_TCB_SIZE;
-# else
- /* In case a model with a different layout for the TCB and DTV
- is defined add another #elif here and in the following #ifs. */
-# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
-# endif
-
- /* Align the TLS block. */
- tlsblock = (void *) (((uintptr_t) tlsblock + max_align - 1)
- & ~(max_align - 1));
-
- /* Initialize the dtv. [0] is the length, [1] the generation counter. */
- static_dtv[0].counter = (sizeof (static_dtv) / sizeof (static_dtv[0])) - 2;
- // static_dtv[1].counter = 0; would be needed if not already done
-
- /* Initialize the TLS block. */
-# if TLS_TCB_AT_TP
- static_dtv[2].pointer.val = ((char *) tlsblock + tcb_offset
- - roundup (memsz, align ?: 1));
- static_map.l_tls_offset = roundup (memsz, align ?: 1);
-# elif TLS_DTV_AT_TP
- static_dtv[2].pointer.val = (char *) tlsblock + tcb_offset;
- static_map.l_tls_offset = tcb_offset;
-# else
-# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
-# endif
- static_dtv[2].pointer.is_static = true;
- /* sbrk gives us zero'd memory, so we don't need to clear the remainder. */
- memcpy (static_dtv[2].pointer.val, initimage, filesz);
-
- /* Install the pointer to the dtv. */
-
- /* Initialize the thread pointer. */
-# if TLS_TCB_AT_TP
- INSTALL_DTV ((char *) tlsblock + tcb_offset, static_dtv);
-
- const char *lossage = TLS_INIT_TP ((char *) tlsblock + tcb_offset, 0);
-# elif TLS_DTV_AT_TP
- INSTALL_DTV (tlsblock, static_dtv);
- const char *lossage = TLS_INIT_TP (tlsblock, 0);
-# else
-# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
-# endif
- if (__builtin_expect (lossage != NULL, 0))
- __libc_fatal (lossage);
-
- /* We have to create a fake link map which normally would be created
- by the dynamic linker. It just has to have enough information to
- make the TLS routines happy. */
- static_map.l_tls_align = align;
- static_map.l_tls_blocksize = memsz;
- static_map.l_tls_initimage = initimage;
- static_map.l_tls_initimage_size = filesz;
- static_map.l_type = lt_executable;
- static_map.l_tls_modid = 1;
-
- init_slotinfo ();
- // static_slotinfo.si.slotinfo[1].gen = 0; already zero
- static_slotinfo.si.slotinfo[1].map = &static_map;
-
- memsz = roundup (memsz, align ?: 1);
-
-# if TLS_TCB_AT_TP
- memsz += tcbsize;
-# elif TLS_DTV_AT_TP
- memsz += tcb_offset;
-# endif
-
- init_static_tls (memsz, MAX (TLS_TCB_ALIGN, max_align));
-}
-
-/* This is called only when the data structure setup was skipped at startup,
- when there was no need for it then. Now we have dynamically loaded
- something needing TLS, or libpthread needs it. */
-int
-internal_function
-_dl_tls_setup (void)
-{
- init_slotinfo ();
- init_static_tls (
-# if TLS_TCB_AT_TP
- TLS_TCB_SIZE,
-# else
- 0,
-# endif
- TLS_TCB_ALIGN);
- return 0;
-}
-
-
-/* This is the minimal initialization function used when libpthread is
- not used. */
-void
-__attribute__ ((weak))
-__pthread_initialize_minimal (void)
-{
- __libc_setup_tls (TLS_INIT_TCB_SIZE, TLS_INIT_TCB_ALIGN);
-}
-
-#elif defined NONTLS_INIT_TP
-
-/* This is the minimal initialization function used when libpthread is
- not used. */
-void
-__attribute__ ((weak))
-__pthread_initialize_minimal (void)
-{
- NONTLS_INIT_TP;
-}
-
-#endif
diff --git a/csu/errno-loc.c b/csu/munch-tmpl.c
index 633590f..f807cf9 100644
--- a/csu/errno-loc.c
+++ b/csu/munch-tmpl.c
@@ -1,6 +1,4 @@
-/* MT support function to get address of `errno' variable, non-threaded
- version.
- Copyright (C) 1996, 1998, 2002, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1997, 2000 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
@@ -18,20 +16,23 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <errno.h>
-#include <tls.h>
+#include <stdlib.h>
-#if ! USE___THREAD && !RTLD_PRIVATE_ERRNO
-#undef errno
-extern int errno;
-#endif
-int *
-#if ! USE___THREAD
-weak_const_function
-#endif
-__errno_location (void)
+EXTERNS
+
+void
+__libc_init (int argc, char **argv, char **envp)
{
- return &errno;
+ CALLS
+
+#ifdef HAVE_INITFINI
+ {
+ /* These functions are defined in crti.o to run the .init and .fini
+ sections, which are used for initializers and finalizers. */
+ extern void _init (void), _fini (void);
+ atexit (&_fini); /* Arrange for _fini to run at exit. */
+ _init ();
+ }
+#endif
}
-libc_hidden_def (__errno_location)
diff --git a/csu/munch.awk b/csu/munch.awk
new file mode 100644
index 0000000..9ebcff8
--- /dev/null
+++ b/csu/munch.awk
@@ -0,0 +1,11 @@
+BEGIN { special = 0 }
+
+/EXTERNS/ { ndirs = split(subdirs, dirs)
+ for (i = 1; i <= ndirs; ++i)
+ printf "extern void __init_%s (int argc, char **argv, char **envp);\n", dirs[i]
+ special = 1 }
+/CALLS/ { ndirs = split(subdirs, dirs)
+ for (i = 1; i <= ndirs; ++i) printf " __init_%s (argc, argv, envp);\n", dirs[i]
+ special = 1 }
+
+{ if (special == 0) print $0; special = 0 }
diff --git a/csu/start.c b/csu/start.c
deleted file mode 100644
index 08f985c..0000000
--- a/csu/start.c
+++ /dev/null
@@ -1,13 +0,0 @@
-/* This file should define the low-level program entry point,
- which should set up `__environ', and then do:
- __libc_init(argc, argv, __environ);
- exit(main(argc, argv, __environ));
-
- This file should be prepared to be the first thing in the text section (on
- Unix systems), or otherwise appropriately special. */
-
-/* The first piece of initialized data. */
-int __data_start = 0;
-#ifdef HAVE_WEAK_SYMBOLS
-weak_alias (__data_start, data_start)
-#endif
diff --git a/csu/sysdep.c b/csu/sysdep.c
deleted file mode 100644
index 5442eee..0000000
--- a/csu/sysdep.c
+++ /dev/null
@@ -1,2 +0,0 @@
-/* This file should contain any system-dependent functions
- that will be used by many parts of the library. */
diff --git a/csu/version.c b/csu/version.c
index 2196d20..1104fa9 100644
--- a/csu/version.c
+++ b/csu/version.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2002, 2003, 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
@@ -25,7 +25,7 @@ static const char __libc_version[] = VERSION;
static const char banner[] =
"GNU C Library "RELEASE" release version "VERSION", by Roland McGrath et al.\n\
-Copyright (C) 2006 Free Software Foundation, Inc.\n\
+Copyright (C) 2004 Free Software Foundation, Inc.\n\
This is free software; see the source for copying conditions.\n\
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
PARTICULAR PURPOSE.\n\