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authorUlrich Drepper <drepper@redhat.com>2004-10-18 23:17:46 +0000
committerUlrich Drepper <drepper@redhat.com>2004-10-18 23:17:46 +0000
commit5f21997b9d6a49ddbed85b044e2be7b182c095a2 (patch)
tree3b63a3a63ebeb466456f52480bd06df198f1dcf5 /dlfcn/dladdr.c
parent790b6c7a7f65dec508a2e71e6d922ec166640afc (diff)
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2004-10-18 Jakub Jelinek <jakub@redhat.com> * elf/dl-libc.c (__libc_dlsym_private, __libc_register_dl_open_hook): New functions. (__libc_dlopen_mode): Call __libc_register_dl_open_hook and __libc_register_dlfcn_hook. * dlfcn/Makefile (routines, elide-routines.os): Set. Add rules to build and test tststatic2. * dlfcn/tststatic2.c: New test. * dlfcn/modstatic2.c: New test module. * dlfcn/dladdr.c: Call _dlfcn_hook from libdl.so if not NULL. Define __ prefixed routine in libc.a and in libdl.a just call it. * dlfcn/dladdr1.c: Likewise. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlinfo.c: Likewise. * dlfcn/dlmopen.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * dlfcn/dlsym.c: Likewise. * dlfcn/dlvsym.c: Likewise. * dlfcn/sdladdr.c: New file. * dlfcn/sdladdr1.c: New file. * dlfcn/sdlclose.c: New file. * dlfcn/sdlerror.c: New file. * dlfcn/sdlinfo.c: New file. * dlfcn/sdlopen.c: New file. * dlfcn/sdlsym.c: New file. * dlfcn/sdlvsym.c: New file. * dlfcn/Versions (libdl): Export _dlfcn_hook@GLIBC_PRIVATE. * include/dlfcn.h (DL_CALLER_DECL, DL_CALLER RETURN_ADDRESS): Define. (struct dlfcn_hook): New type. (_dlfcn_hook): New extern decl. (__dlopen, __dlclose, __dlsym, __dlerror, __dladdr, __dladdr1, __dlinfo, __dlmopen, __libc_dlsym_private, __libc_register_dl_open_hook, __libc_register_dlfcn_hook): New prototypes. (__dlvsym): Use DL_CALLER_DECL. * include/libc-symbols.h: Define libdl_hidden_proto and friends. * malloc/arena.c (_dl_open_hook): Extern decl. (ptmalloc_init): Don't call _dl_addr when dlopened from statically linked programs but don't use brk for them either.
Diffstat (limited to 'dlfcn/dladdr.c')
-rw-r--r--dlfcn/dladdr.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/dlfcn/dladdr.c b/dlfcn/dladdr.c
index b5490e5..d0462b9 100644
--- a/dlfcn/dladdr.c
+++ b/dlfcn/dladdr.c
@@ -1,5 +1,6 @@
/* Locate the shared object symbol nearest a given address.
- Copyright (C) 1996, 1997, 1998, 1999, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 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
@@ -19,8 +20,26 @@
#include <dlfcn.h>
+#if !defined SHARED && defined IS_IN_libdl
+
int
dladdr (const void *address, Dl_info *info)
{
+ return __dladdr (address, info);
+}
+
+#else
+
+int
+__dladdr (const void *address, Dl_info *info)
+{
+# ifdef SHARED
+ if (__builtin_expect (_dlfcn_hook != NULL, 0))
+ return _dlfcn_hook->dladdr (address, info);
+# endif
return _dl_addr (address, info, NULL, NULL);
}
+# ifdef SHARED
+strong_alias (__dladdr, dladdr)
+# endif
+#endif