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author | Ulrich Drepper <drepper@redhat.com> | 2004-10-18 23:17:46 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2004-10-18 23:17:46 +0000 |
commit | 5f21997b9d6a49ddbed85b044e2be7b182c095a2 (patch) | |
tree | 3b63a3a63ebeb466456f52480bd06df198f1dcf5 /dlfcn/dlerror.c | |
parent | 790b6c7a7f65dec508a2e71e6d922ec166640afc (diff) | |
download | glibc-5f21997b9d6a49ddbed85b044e2be7b182c095a2.tar.gz glibc-5f21997b9d6a49ddbed85b044e2be7b182c095a2.tar.xz glibc-5f21997b9d6a49ddbed85b044e2be7b182c095a2.zip |
Update. cvs/fedora-glibc-20041018T2320
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/dlerror.c')
-rw-r--r-- | dlfcn/dlerror.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/dlfcn/dlerror.c b/dlfcn/dlerror.c index 1cde04b080..8789f4f68b 100644 --- a/dlfcn/dlerror.c +++ b/dlfcn/dlerror.c @@ -25,6 +25,16 @@ #include <bits/libc-lock.h> #include <ldsodefs.h> +#if !defined SHARED && defined IS_IN_libdl + +char * +dlerror (void) +{ + return __dlerror (); +} + +#else + /* Type for storing results of dynamic loading actions. */ struct dl_action_result { @@ -46,11 +56,16 @@ static void free_key_mem (void *mem); char * -dlerror (void) +__dlerror (void) { char *buf = NULL; struct dl_action_result *result; +# ifdef SHARED + if (__builtin_expect (_dlfcn_hook != NULL, 0)) + return _dlfcn_hook->dlerror (); +# endif + /* If we have not yet initialized the buffer do it now. */ __libc_once (once, init); @@ -99,6 +114,9 @@ dlerror (void) return buf; } +# ifdef SHARED +strong_alias (__dlerror, dlerror) +# endif int internal_function @@ -185,3 +203,35 @@ free_key_mem (void *mem) free (mem); __libc_setspecific (key, NULL); } + +# ifdef SHARED + +struct dlfcn_hook *_dlfcn_hook __attribute__((nocommon)); +libdl_hidden_data_def (_dlfcn_hook) + +# else + +static struct dlfcn_hook _dlfcn_hooks = + { + .dlopen = __dlopen, + .dlclose = __dlclose, + .dlsym = __dlsym, + .dlvsym = __dlvsym, + .dlerror = __dlerror, + .dladdr = __dladdr, + .dladdr1 = __dladdr1, + .dlinfo = __dlinfo, + .dlmopen = __dlmopen + }; + +void +__libc_register_dlfcn_hook (struct link_map *map) +{ + struct dlfcn_hook **hook; + + hook = (struct dlfcn_hook **) __libc_dlsym_private (map, "_dlfcn_hook"); + if (hook != NULL) + *hook = &_dlfcn_hooks; +} +# endif +#endif |