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authorRoland McGrath <roland@gnu.org>2002-10-11 10:52:20 +0000
committerRoland McGrath <roland@gnu.org>2002-10-11 10:52:20 +0000
commitce460d04a5bd10d7353ca37dfa9d34275449fb3b (patch)
treee203d270a348ce6c5d0f4dbc54a430fbd106fd93 /elf/dl-error.c
parent28654d2a063d22fda1fd748f392876ed61c36fa0 (diff)
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* sysdeps/generic/bits/libc-tsd.h [USE___THREAD]: Conditional
changed from [USE_TLS && HAVE___THREAD]. * sysdeps/i386/dl-machine.h (elf_machine_type_class, elf_machine_rel): Disable TLS relocs if [RTLD_BOOTSTRAP && !USE___THREAD]. * sysdeps/x86_64/dl-machine.h (elf_machine_type_class, elf_machine_rela): Likewise. * sysdeps/sh/dl-machine.h (elf_machine_type_class, elf_machine_rela): Likewise. * include/link.h (struct link_map): Remove member l_tls_tp_initialized. * elf/rtld.c (_dl_start_final, dl_main): Don't use it. (_dl_start): Conditionalize PT_TLS check on [USE___THREAD]. * sysdeps/i386/dl-tls.h (__TLS_GET_ADDR): Use ___tls_get_addr_internal instead of ___tls_get_addr. (___tls_get_addr_internal): Add attribute_hidden to decl. * sysdeps/generic/ldsodefs.h (struct rtld_global): New variable _dl_error_catch_tsd. * elf/rtld.c (startup_error_tsd): New function. (dl_main): Point _dl_error_catch_tsd at that. * elf/dl-error.c: Don't use libc-tsd.h for DL_ERROR, use new function pointer instead. * elf/dl-tsd.c: New file. * elf/Makefile (routines): Add it. 2002-10-07 Roland McGrath <roland@redhat.com> * elf/dl-misc.c (_dl_debug_vdprintf): Use INTERNAL_SYSCALL macro for writev if it's available. Otherwise if [RTLD_PRIVATE_ERRNO] then take _dl_load_lock around calling __writev. * sysdeps/unix/sysv/linux/i386/sysdep.h (INTERNAL_SYSCALL): New macro. (INLINE_SYSCALL): Use that. * sysdeps/generic/dl-sysdep.h: New file. * sysdeps/mach/hurd/dl-sysdep.h: New file. * sysdeps/generic/ldsodefs.h: Include <dl-sysdep.h>. * include/errno.h [IS_IN_rtld]: Include <dl-sysdep.h> to define ... [RTLD_PRIVATE_ERRNO]: Use a hidden global variable for errno and access it directly. * elf/dl-minimal.c (__errno_location): Removed. * sysdeps/unix/i386/sysdep.S (__syscall_errno) [RTLD_PRIVATE_ERRNO]: Use GOTOFF access for errno. * sysdeps/unix/sysv/linux/i386/sysdep.h [RTLD_PRIVATE_ERRNO] (SYSCALL_ERROR_HANDLER): Likewise. * sysdeps/unix/x86_64/sysdep.S (__syscall_errno) [RTLD_PRIVATE_ERRNO]: Use PC-relative access for errno. * sysdeps/unix/sysv/linux/x86_64/sysdep.h [RTLD_PRIVATE_ERRNO] (SYSCALL_ERROR_HANDLER): Likewise. * include/tls.h: New file. (USE___THREAD): New macro. Define to 1 under [USE_TLS && HAVE___THREAD] and only when compiling libc or libpthread. * sysdeps/unix/sysv/linux/i386/sysdep.h [USE___THREAD]: Conditional changed from [USE_TLS && HAVE___THREAD]. * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise. * sysdeps/unix/i386/sysdep.S: Likewise. * sysdeps/unix/x86_64/sysdep.S: Likewise. * include/errno.h: Likewise. * include/netdb.h: Likewise. * include/resolv.h: Likewise. * sysdeps/generic/errno.c: New file. * csu/Makefile (aux): New variable, list errno. * sysdeps/unix/sysv/linux/i386/sysdep.S (errno, _errno): Remove defns. * sysdeps/unix/sysv/linux/m68k/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/arm/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/cris/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/hppa/sysdep.c: Likewise. * sysdeps/unix/sysv/linux/ia64/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/sysdep.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/sh/sysdep.S: Likewise. * sysdeps/unix/alpha/sysdep.S: Likewise. * sysdeps/generic/start.c: Likewise. * sysdeps/unix/start.c: Likewise. * sysdeps/unix/arm/start.c: Likewise. * sysdeps/unix/bsd/ultrix4/mips/start.S: Likewise. * sysdeps/unix/sparc/start.c: Likewise. * sysdeps/unix/sysv/irix4/start.c: Likewise. * sysdeps/unix/sysv/linux/mips/sysdep.S: File removed. * manual/search.texi (Tree Search Function, Hash Search Function): Mention search.h clearly. 2002-10-05 Roland McGrath <roland@redhat.com> * elf/dl-fxstat64.c: File removed. * elf/dl-xstat64.c: File removed. * elf/Makefile (rtld-routines): Remove them. * sysdeps/unix/sysv/linux/xstat64.c: Remove RTLD_STAT64 conditionals. Instead, use strong_alias instead of versioned_symbol in the !SHLIB_COMPAT case. * sysdeps/unix/sysv/linux/fxstat64.c: Likewise. * sysdeps/unix/sysv/linux/lxstat64.c: Likewise. * include/shlib-compat.h (SHLIB_COMPAT): Require that IS_IN_##lib be defined nonzero. [! NOT_IN_libc] (IS_IN_libc): Define it. * cppflags-iterator.mk (CPPFLAGS-$(cpp-src)): Use -Dx=1 not just -Dx. * elf/Makefile (CPPFLAGS-.os): Likewise. * sunrpc/rpc_main.c (main): Don't declare with noreturn attribute. Return the status instead of calling exit. * Makeconfig (CFLAGS): Prepend -std=gnu99. * Makerules (+make-deps): Use $(CFLAGS) only for .c sources. Remove superfluous rm command, whose @ plus make bugs hid all these commands from the make output. * include/stubs-prologue.h: New file. Give #error under #ifdef _LIBC. * Makefile ($(inst_includedir)/gnu/stubs.h): Depend on it. Use that file's contents instead of literal echo's for the prologue. * include/features.h: Include <gnu/stubs.h> unconditionally. * include/gnu/stubs.h: New file. 2002-09-30 Roland McGrath <roland@redhat.com> * elf/rtld-Rules: New file. * elf/Makefile ($(objpfx)librtld.map, $(objpfx)librtld.mk, $(objpfx)rtld-libc.a): New targets. (generated): Add them. (reloc-link): Remove -o $@ from the variable. ($(objpfx)dl-allobjs.os): Add -o $@ after $(reloc-link). (distribute): Add rtld-Rules. (CPPFLAGS-.os): Define this instead of CFLAGS-.os. * Makerules ($(+sysdir_pfx)sysd-rules): Emit rules for rtld-% targets. (common-mostlyclean, common-clean): Clean up rtld-* files. * sysdeps/unix/make-syscalls.sh: Add rtld-*.os target name to rules.
Diffstat (limited to 'elf/dl-error.c')
-rw-r--r--elf/dl-error.c26
1 files changed, 12 insertions, 14 deletions
diff --git a/elf/dl-error.c b/elf/dl-error.c
index 0af8f2f94b..e8f2f3e208 100644
--- a/elf/dl-error.c
+++ b/elf/dl-error.c
@@ -23,7 +23,6 @@
#include <string.h>
#include <unistd.h>
#include <ldsodefs.h>
-#include <bits/libc-tsd.h>
/* This structure communicates state between _dl_catch_error and
_dl_signal_error. */
@@ -38,11 +37,8 @@ struct catch
calls can come from `_dl_map_object_deps', `_dlerror_run', or from
any of the libc functionality which loads dynamic objects (NSS, iconv).
Therefore we have to be prepared to save the state in thread-local
- memory. */
-
-__libc_tsd_define (static, DL_ERROR)
-#define tsd_getspecific() __libc_tsd_get (DL_ERROR)
-#define tsd_setspecific(data) __libc_tsd_set (DL_ERROR, (data))
+ memory. The _dl_error_catch_tsd function pointer is reset by the thread
+ library so that it returns the address of a thread-local variable. */
/* This message we return as a last resort. We define the string in a
@@ -72,7 +68,7 @@ _dl_signal_error (int errcode, const char *objname, const char *occation,
if (! errstring)
errstring = N_("DYNAMIC LINKER BUG!!!");
- lcatch = tsd_getspecific ();
+ lcatch = *((*GL(dl_error_catch_tsd)) ());
if (objname == NULL)
objname = "";
if (lcatch != NULL)
@@ -151,20 +147,21 @@ _dl_catch_error (const char **objname, const char **errstring,
inefficient. So we initialize `c' by hand. */
c.errstring = NULL;
- old = tsd_getspecific ();
+ void **catchp = (*GL(dl_error_catch_tsd)) ();
+ old = *catchp;
errcode = setjmp (c.env);
if (__builtin_expect (errcode, 0) == 0)
{
- tsd_setspecific (&c);
+ *catchp = &c;
(*operate) (args);
- tsd_setspecific (old);
+ *catchp = old;
*objname = NULL;
*errstring = NULL;
return 0;
}
/* We get here only if we longjmp'd out of OPERATE. */
- tsd_setspecific (old);
+ *catchp = old;
*objname = c.objname;
*errstring = c.errstring;
return errcode == -1 ? 0 : errcode;
@@ -176,18 +173,19 @@ void
internal_function
_dl_receive_error (receiver_fct fct, void (*operate) (void *), void *args)
{
+ void **catchp = (*GL(dl_error_catch_tsd)) ();
struct catch *old_catch;
receiver_fct old_receiver;
- old_catch = tsd_getspecific ();
+ old_catch = *catchp;
old_receiver = receiver;
/* Set the new values. */
- tsd_setspecific (NULL);
+ *catchp = NULL;
receiver = fct;
(*operate) (args);
- tsd_setspecific (old_catch);
+ *catchp = old_catch;
receiver = old_receiver;
}