+2002-12-18 Ulrich Drepper <drepper@redhat.com>
+
+ * elf/dl-support.c [NEED_DL_SYSINFO]: Define and initialize
+ _dl_sysinfo.
+ [DL_SYSINFO_IMPLEMENTATION]: If defined use it to generate the needed
+ code.
+ * elf/rtld.c [DL_NEED_SYSINFO]: Initialize _dl_sysinfo element of
+ _rtld_global.
+ [DL_SYSINFO_IMPLEMENTATION]: If defined use it to generate the needed
+ code.
+ * sysdeps/generic/dl-sysdep.c (_dl_sysdep_start) [NEED_DL_SYSINFO]:
+ Check for AT_SYSINFO and set _dl_sysinfo appropriately.
+ * sysdeps/generic/ldsodefs.h (struct rtld_global) [NEED_DL_SYSINFO]:
+ Add _dl_sysinfo.
+
2002-12-18 Jakub Jelinek <jakub@redhat.com>
* misc/Versions [libc: GLIBC_2.3.1]: Move __libc_readv and
struct ElfW(Phdr) *_dl_phdr;
size_t _dl_phnum;
+#ifdef NEED_DL_SYSINFO
+/* Needed for improved syscall handling on at least x86/Linux. */
+uintptr_t _dl_sysinfo = DL_SYSINFO_DEFAULT;
+#endif
+
/* During the program run we must not modify the global data of
loaded shared object simultanously in two threads. Therefore we
protect `_dl_open' and `_dl_close' in dl-close.c.
*sz = 1;
return &result;
}
+
+
+#ifdef DL_SYSINFO_IMPLEMENTATION
+DL_SYSINFO_IMPLEMENTATION
+#endif
Bummer. --drepper */
._dl_dynamic_weak = 1,
#endif
+#ifdef NEED_DL_SYSINFO
+ ._dl_sysinfo = DL_SYSINFO_DEFAULT,
+#endif
._dl_lazy = 1,
._dl_fpu_control = _FPU_DEFAULT,
._dl_correct_cache_id = _DL_CACHE_DEFAULT_ID,
TLS_INIT_HELPER
#endif
+/* Helper function for syscall implementation. */
+#ifdef DL_SYSINFO_IMPLEMENTATION
+DL_SYSINFO_IMPLEMENTATION
+#endif
+
/* Before ld.so is relocated we must not access variables which need
relocations. This means variables which are exported. Variables
declared as static are fine. If we can mark a variable hidden this
2002-12-18 Jakub Jelinek <jakub@redhat.com>
+ * sysdeps/i386/useldt.h (FLOATING_STACKS, ARCH_STACK_MAX_SIZE): Only
+ define if __ASSUME_LDT_WORKS > 0.
+ * libc-cancellation.c (THREAD_GETMEM, THREAD_SETMEM): Redefine to
+ struct member access if !FLOATING_STACKS.
+ * sysdeps/pthread/flockfile.c (flockfile): Change into weak alias.
+
+2002-12-18 Jakub Jelinek <jakub@redhat.com>
+
* internals.h (__pthread_thread_self): New prototype.
(struct pthread_functions): Add ptr_pthread_thread_self field.
* pthread.c (pthread_functions): Initialize ptr_pthread_thread_self.
case AT_FPUCW:
GL(dl_fpu_control) = av->a_un.a_val;
break;
+#ifdef NEED_DL_SYSINFO
+ case AT_SYSINFO:
+ GL(dl_sysinfo) = av->a_un.a_val;
+ break;
+#endif
}
#ifdef DL_SYSDEP_OSCHECK
EXTERN size_t _dl_tls_generation;
#endif
+#ifdef NEED_DL_SYSINFO
+ /* Syscall handling improvements. This is very specific to x86. */
+ EXTERN uintptr_t _dl_sysinfo;
+#endif
+
#ifdef SHARED
};
# define __rtld_global_attribute__