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| author | Ulrich Drepper <drepper@redhat.com> | 2004-10-18 23:17:46 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-10-18 23:17:46 +0000 |
| commit | 5f21997b9d6a49ddbed85b044e2be7b182c095a2 (patch) | |
| tree | 3b63a3a63ebeb466456f52480bd06df198f1dcf5 /dlfcn/dlvsym.c | |
| parent | 790b6c7a7f65dec508a2e71e6d922ec166640afc (diff) | |
| download | glibc-5f21997b9d6a49ddbed85b044e2be7b182c095a2.zip glibc-5f21997b9d6a49ddbed85b044e2be7b182c095a2.tar.gz glibc-5f21997b9d6a49ddbed85b044e2be7b182c095a2.tar.bz2 | |
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/dlvsym.c')
| -rw-r--r-- | dlfcn/dlvsym.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/dlfcn/dlvsym.c b/dlfcn/dlvsym.c index 2486845..9f12764 100644 --- a/dlfcn/dlvsym.c +++ b/dlfcn/dlvsym.c @@ -22,6 +22,17 @@ #include <ldsodefs.h> +#if !defined SHARED && defined IS_IN_libdl + +void * +weak_function +dlvsym (void *handle, const char *name, const char *version_str) +{ + return __dlvsym (handle, name, version_str, RETURN_ADDRESS (0)); +} + +#else + struct dlvsym_args { /* The arguments to dlvsym_doit. */ @@ -44,13 +55,18 @@ dlvsym_doit (void *a) } void * -__dlvsym (void *handle, const char *name, const char *version_str) +__dlvsym (void *handle, const char *name, const char *version_str + DL_CALLER_DECL) { - struct dlvsym_args args; +# ifdef SHARED + if (__builtin_expect (_dlfcn_hook != NULL, 0)) + return _dlfcn_hook->dlvsym (handle, name, version_str, DL_CALLER); +# endif + struct dlvsym_args args; args.handle = handle; args.name = name; - args.who = RETURN_ADDRESS (0); + args.who = DL_CALLER; args.version = version_str; /* Protect against concurrent loads and unloads. */ @@ -62,4 +78,7 @@ __dlvsym (void *handle, const char *name, const char *version_str) return result; } +# ifdef SHARED weak_alias (__dlvsym, dlvsym) +# endif +#endif |