+2001-02-26 Ulrich Drepper <drepper@redhat.com>
+
+ * dlfcn/Makefile (distribute): Add modatexit.c and modcxaatexit.c.
+ (tests): Add tstatexit and tstcxaatexit.
+ (module-names): Add modatexit and modcxaatexit.
+ Add rules to build and run tstatexit and tstcxaatexit.
+ * dlfcn/modatexit.c: New file.
+ * dlfcn/modcxaatexit.c: New file.
+ * dlfcn/tstatexit.c: New file.
+ * dlfcn/tstcxaatexit.c: New file.
+
+ * io/Makefile: Pass -DHAVE_DOT_HIDDEN to stat and mknod functions if
+ .hidden is available.
+ * io/stat.c: If .hidden is available use it to avoid exporting
+ functions.
+ * io/fstat.c: Likewise.
+ * io/lstat.c: Likewise.
+ * io/stat64.c: Likewise.
+ * io/fstat64.c: Likewise.
+ * io/lstat64.c: Likewise.
+ * sysdeps/generic/mknod.c: Likewise.
+
+ * malloc/mtrace.c: Use __cxa_atexit and not atexit.
+ * sysdeps/generic/bb_init_func.c: Likewise.
+ * sysdeps/generic/libc-start.c: Likewise.
+
+ * stdlib/atexit.c (__new_exitfn): Move to cxa_atexit.c.
+ (atexit): Implement using __cxa_atexit.
+ Use .hidden if availble to avoid exporting atexit.
+ * stdlib/cxa_atexit.c (__new_exitfn): Moved to here from atexit.c.
+ * stdlib/Versions: Export __new_exitfn for GLIBC_2.2.3.
+ * stdlib/Makefile (routines): Add old_atexit.
+ (static-only-routines): Add atexit.
+ Pass -DHAVE_DOT_HIDDEN for atexit.c if .hidden is available.
+ * stdlib/old_atexit.c: New file.
+
+ * intl/Makefile: Remove bogus endif.
+
2001-02-26 Andreas Jaeger <aj@suse.de>
* iconvdata/Makefile (tests): Fix typo in last patch.
extra-libs := libdl
libdl-routines := dlopen dlclose dlsym dlvsym dlerror dladdr eval
distribute := dlopenold.c glreflib1.c glreflib2.c failtestmod.c eval.c \
- defaultmod1.c defaultmod2.c errmsg1mod.c
+ defaultmod1.c defaultmod2.c errmsg1mod.c modatexit.c \
+ modcxaatexit.c
extra-libs-others := libdl
libdl-shared-only-routines += eval
ifeq (yes,$(build-shared))
-tests = glrefmain failtest tst-dladdr default errmsg1
+tests = glrefmain failtest tst-dladdr default errmsg1 tstatexit tstcxaatexit
endif
modules-names = glreflib1 glreflib2 failtestmod defaultmod1 defaultmod2 \
- errmsg1mod
+ errmsg1mod modatexit modcxaatexit
extra-objs += $(modules-names:=.os) eval.os
generated := $(modules-names:=.so)
$(objpfx)errmsg1: $(libdl)
$(objpfx)errmsg1.out: $(objpfx)errmsg1 $(objpfx)errmsg1mod.so
+
+$(objpfx)tstatexit: $(libdl)
+$(objpfx)tstatexit.out: $(objpfx)tstatexit $(objpfx)modatexit.so
+
+$(objpfx)tstcxaatexit: $(libdl)
+$(objpfx)tstcxaatexit.out: $(objpfx)tstcxaatexit $(objpfx)modcxaatexit.so
+
+$(objpfx)modatexit.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a
--- /dev/null
+/* Copyright (C) 2001 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. 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>
+
+int global;
+int *ip;
+
+void
+dummy (void)
+{
+ printf ("This is %s\n", __FUNCTION__);
+ *ip = global = 1;
+}
+
+
+void
+foo (void *p)
+{
+ extern void *__dso_handle __attribute__ ((__weak__));
+ printf ("This is %s\n", __FUNCTION__);
+ atexit (dummy);
+ if (&__dso_handle) puts ("have dso handle"); else puts ("no dso handle");
+ ip = p;
+}
--- /dev/null
+/* Copyright (C) 2001 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. 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>
+
+int global;
+
+
+void
+fluffy (void *p)
+{
+ printf ("This is %s\n", __FUNCTION__);
+ *(int *) p = global = 1;
+}
+
+
+void
+bar (void *p)
+{
+ extern void *__dso_handle;
+ printf ("This is %s\n", __FUNCTION__);
+ __cxa_atexit (fluffy, p, __dso_handle);
+}
--- /dev/null
+/* Copyright (C) 2001 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+int
+main (void)
+{
+ const char fname[] = "modatexit.so";
+ void *h;
+ void (*fp) (void *);
+ int v = 0;
+
+ h = dlopen (fname, RTLD_NOW);
+ if (h == NULL)
+ {
+ printf ("cannot open \"%s\": %s\n", fname, dlerror ());
+ exit (1);
+ }
+
+ fp = dlsym (h, "foo");
+ if (fp == NULL)
+ {
+ printf ("cannot find \"foo\": %s\n", dlerror ());
+ exit (1);
+ }
+
+ fp (&v);
+
+ if (dlclose (h) != 0)
+ {
+ printf ("cannot close \"%s\": %s\n", fname, dlerror ());
+ exit (1);
+ }
+
+ if (v != 1)
+ {
+ puts ("module unload didn't change `v'");
+ exit (1);
+ }
+
+ puts ("finishing now");
+
+ return 0;
+}
--- /dev/null
+/* Copyright (C) 2001 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+int
+main (void)
+{
+ const char fname[] = "modcxaatexit.so";
+ void *h;
+ void (*fp) (void *);
+ int v = 0;
+
+ h = dlopen (fname, RTLD_LAZY);
+ if (h == NULL)
+ {
+ printf ("cannot open \"%s\": %s\n", fname, dlerror ());
+ exit (1);
+ }
+
+ fp = dlsym (h, "bar");
+ if (fp == NULL)
+ {
+ printf ("cannot find \"bar\": %s\n", dlerror ());
+ exit (1);
+ }
+
+ fp (&v);
+
+ if (dlclose (h) != 0)
+ {
+ printf ("cannot close \"%s\": %s\n", fname, dlerror ());
+ exit (1);
+ }
+
+ if (v != 1)
+ {
+ puts ("module unload didn't change `v'");
+ exit (1);
+ }
+
+ puts ("finishing now");
+
+ return 0;
+}
CFLAGS-test-stat.c = -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE
CFLAGS-test-lfs.c = -D_LARGEFILE64_SOURCE
+ifeq (yes,$(have-protected))
+CFLAGS-stat.c = -DHAVE_DOT_HIDDEN
+CFLAGS-fstat.c = -DHAVE_DOT_HIDDEN
+CFLAGS-lstat.c = -DHAVE_DOT_HIDDEN
+CFLAGS-mknod.c = -DHAVE_DOT_HIDDEN
+CFLAGS-stat64.c = -DHAVE_DOT_HIDDEN
+CFLAGS-fstat64.c = -DHAVE_DOT_HIDDEN
+CFLAGS-lstat64.c = -DHAVE_DOT_HIDDEN
+endif
+
test-stat2-ARGS = Makefile . $(objpfx)test-stat2
ifeq ($(cross-compiling),no)
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 2001 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
}
weak_alias (__fstat, fstat)
+
+/* Hide the symbol so that no definition but the one locally in the
+ executable or DSO is used. */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tfstat");
+asm (".hidden\t__fstat");
+#endif
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001 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
{
return __fxstat64 (_STAT_VER, fd, buf);
}
+
+/* Hide the symbol so that no definition but the one locally in the
+ executable or DSO is used. */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tfstat64");
+#endif
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001 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
}
weak_alias (__lstat, lstat)
+
+/* Hide the symbol so that no definition but the one locally in the
+ executable or DSO is used. */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tlstat");
+asm (".hidden\t__lstat");
+#endif
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001 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
{
return __lxstat64 (_STAT_VER, file, buf);
}
+
+/* Hide the symbol so that no definition but the one locally in the
+ executable or DSO is used. */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tlstat64");
+#endif
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001 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
}
weak_alias (__stat, stat)
+
+/* Hide the symbol so that no definition but the one locally in the
+ executable or DSO is used. */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tstat");
+asm (".hidden\t__stat");
+#endif
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001 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
{
return __xstat64 (_STAT_VER, file, buf);
}
+
+/* Hide the symbol so that no definition but the one locally in the
+ executable or DSO is used. */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tstat64");
+#endif
#ifdef _LIBC
if (!added_atexit_handler)
{
+ extern void *__dso_handle __attribute__ ((__weak__));
added_atexit_handler = 1;
- atexit (release_libc_mem);
+ __cxa_atexit ((void (*) (void *)) release_libc_mem, NULL,
+ &__dso_handle ? __dso_handle : NULL);
}
#endif
}
abort \
bsearch qsort msort \
getenv putenv setenv secure-getenv \
- exit on_exit atexit cxa_atexit cxa_finalize \
+ exit on_exit atexit cxa_atexit cxa_finalize old_atexit \
abs labs llabs \
div ldiv lldiv \
mblen mbstowcs mbtowc wcstombs wctomb \
strtoimax strtoumax wcstoimax wcstoumax \
getcontext setcontext makecontext swapcontext
+# These routines will be omitted from the libc shared object.
+# Instead the static object files will be included in a special archive
+# linked against when the shared library will be used.
+static-only-routines = atexit
+
distribute := exit.h grouping.h abort-instr.h isomac.c tst-fmtmsg.sh
test-srcs := tst-fmtmsg
tests := tst-strtol tst-strtod testmb testrand testsort testdiv \
CFLAGS-strfmon_l.c = -D_IO_MTSAFE_IO
endif
+ifeq (yes,$(have-protected))
+CFLAGS-atexit.c = -DHAVE_DOT_HIDDEN
+endif
+
include ../Rules
tst-strtod-ENV = LOCPATH=$(common-objpfx)localedata
# Run a test on the header files we use.
-tests: $(objpfx)isomac.out
+tests: $(objpfx)isomac.out
ifeq (no,$(cross-compiling))
tests: $(objpfx)tst-fmtmsg.out
# used by new G++ ABI
__cxa_atexit; __cxa_finalize;
}
+ GLIBC_2.2.3 {
+ # Used by atexit in libc_nonshared.
+ __new_exitfn;
+ }
}
-/* Copyright (C) 1991, 1996, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996, 1999, 2001 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
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#include <bits/libc-lock.h>
#include <stdlib.h>
#include "exit.h"
+/* This is defined by newer gcc version unique for each module. */
+extern void *__dso_handle __attribute__ ((__weak__));
+
+
/* Register FUNC to be executed by `exit'. */
int
atexit (void (*func) (void))
{
- struct exit_function *new = __new_exitfn ();
-
- if (new == NULL)
- return -1;
-
- new->flavor = ef_at;
- new->func.at = func;
- return 0;
+ return __cxa_atexit ((void (*) (void *)) func, NULL,
+ &__dso_handle == NULL ? NULL : __dso_handle);
}
-
-/* We change global data, so we need locking. */
-__libc_lock_define_initialized (static, lock)
-
-
-static struct exit_function_list initial;
-struct exit_function_list *__exit_funcs = &initial;
-
-struct exit_function *
-__new_exitfn (void)
-{
- struct exit_function_list *l;
- size_t i = 0;
-
- __libc_lock_lock (lock);
-
- for (l = __exit_funcs; l != NULL; l = l->next)
- {
- for (i = 0; i < l->idx; ++i)
- if (l->fns[i].flavor == ef_free)
- break;
- if (i < l->idx)
- break;
-
- if (l->idx < sizeof (l->fns) / sizeof (l->fns[0]))
- {
- i = l->idx++;
- break;
- }
- }
-
- if (l == NULL)
- {
- l = (struct exit_function_list *)
- malloc (sizeof (struct exit_function_list));
- if (l != NULL)
- {
- l->next = __exit_funcs;
- __exit_funcs = l;
-
- l->idx = 1;
- i = 0;
- }
- }
-
- /* Mark entry as used, but we don't know the flavor now. */
- if (l != NULL)
- l->fns[i].flavor = ef_us;
-
- __libc_lock_unlock (lock);
-
- return l == NULL ? NULL : &l->fns[i];
-}
+/* Hide the symbol so that no definition but the one locally in the
+ executable or DSO is used. */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tatexit");
+#endif
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#include <bits/libc-lock.h>
#include <stdlib.h>
#include "exit.h"
new->func.cxa.dso_handle = d;
return 0;
}
+
+
+/* We change global data, so we need locking. */
+__libc_lock_define_initialized (static, lock)
+
+
+static struct exit_function_list initial;
+struct exit_function_list *__exit_funcs = &initial;
+
+struct exit_function *
+__new_exitfn (void)
+{
+ struct exit_function_list *l;
+ size_t i = 0;
+
+ __libc_lock_lock (lock);
+
+ for (l = __exit_funcs; l != NULL; l = l->next)
+ {
+ for (i = 0; i < l->idx; ++i)
+ if (l->fns[i].flavor == ef_free)
+ break;
+ if (i < l->idx)
+ break;
+
+ if (l->idx < sizeof (l->fns) / sizeof (l->fns[0]))
+ {
+ i = l->idx++;
+ break;
+ }
+ }
+
+ if (l == NULL)
+ {
+ l = (struct exit_function_list *)
+ malloc (sizeof (struct exit_function_list));
+ if (l != NULL)
+ {
+ l->next = __exit_funcs;
+ __exit_funcs = l;
+
+ l->idx = 1;
+ i = 0;
+ }
+ }
+
+ /* Mark entry as used, but we don't know the flavor now. */
+ if (l != NULL)
+ l->fns[i].flavor = ef_us;
+
+ __libc_lock_unlock (lock);
+
+ return l == NULL ? NULL : &l->fns[i];
+}
--- /dev/null
+#include <shlib-compat.h>
+
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2_2)
+# define atexit __dyn_atexit
+# include "atexit.c"
+# undef atexit
+compat_symbol (libc, __dyn_atexit, atexit, GLIBC_2_0);
+#endif
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Mosberger (davidm@cs.arizona.edu).
{
/* we didn't register _mcleanup yet and pc profiling doesn't seem
to be active, so let's register it now: */
- atexit (_mcleanup);
+ extern void *__dso_handle __attribute__ ((__weak__));
+ __cxa_atexit ((void (*) (void *)) _mcleanup, NULL,
+ &__dso_handle ? __dso_handle : NULL);
}
}
-/* Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999, 2000, 2001 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
# ifdef HAVE_AUX_VECTOR
for (auxvec = (void *__unbounded *__unbounded) ubp_ev;
- *auxvec; auxvec++);
+ *auxvec != NULL; ++auxvec);
++auxvec;
_dl_aux_init ((ElfW(auxv_t) *) auxvec);
# endif
/* Register the destructor of the dynamic linker if there is any. */
if (__builtin_expect (rtld_fini != NULL, 1))
- atexit (rtld_fini);
+ __cxa_atexit ((void (*) (void *)) rtld_fini, NULL, NULL);
/* 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
/* Register the destructor of the program, if any. */
if (fini)
- atexit (fini);
+ __cxa_atexit ((void (*) (void *)) fini, NULL, NULL);
/* Call the initializer of the program, if any. */
#ifdef SHARED
-/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 2001 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
}
weak_alias (__mknod, mknod)
+
+/* Hide the symbol so that no definition but the one locally in the
+ executable or DSO is used. */
+#ifdef HAVE_DOT_HIDDEN
+asm (".hidden\tmknod");
+asm (".hidden\t__mknod");
+#endif
projects / platform / upstream / glibc.git / commitdiff