From 5f21997b9d6a49ddbed85b044e2be7b182c095a2 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Mon, 18 Oct 2004 23:17:46 +0000 Subject: Update. 2004-10-18 Jakub Jelinek * 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. --- dlfcn/dlmopen.c | 39 ++++++++++++++++++++++++++++++++++----- 1 file changed, 34 insertions(+), 5 deletions(-) (limited to 'dlfcn/dlmopen.c') diff --git a/dlfcn/dlmopen.c b/dlfcn/dlmopen.c index fb2a50bb1d..5fd6543655 100644 --- a/dlfcn/dlmopen.c +++ b/dlfcn/dlmopen.c @@ -23,6 +23,17 @@ #include #include +#if !defined SHARED && defined IS_IN_libdl + +void * +dlmopen (Lmid_t nsid, const char *file, int mode) +{ + return __dlmopen (nsid, file, mode, RETURN_ADDRESS (0)); +} +static_link_warning (dlmopen) + +#else + struct dlmopen_args { /* Namespace ID. */ @@ -43,11 +54,11 @@ dlmopen_doit (void *a) /* Non-shared code has no support for multiple namespaces. */ if (args->nsid != LM_ID_BASE) -#ifdef SHARED +# ifdef SHARED /* If trying to open the link map for the main executable the namespace must be the main one. */ if (args->file == NULL) -#endif +# endif GLRO(dl_signal_error) (EINVAL, NULL, NULL, N_("invalid namespace")); args->new = _dl_open (args->file ?: "", args->mode | __RTLD_DLOPEN, @@ -56,14 +67,32 @@ dlmopen_doit (void *a) void * -dlmopen (Lmid_t nsid, const char *file, int mode) +__dlmopen (Lmid_t nsid, const char *file, int mode DL_CALLER_DECL) { +# ifdef SHARED + if (__builtin_expect (_dlfcn_hook != NULL, 0)) + return _dlfcn_hook->dlmopen (nsid, file, mode, RETURN_ADDRESS (0)); +# endif + struct dlmopen_args args; args.nsid = nsid; args.file = file; args.mode = mode; - args.caller = RETURN_ADDRESS (0); + args.caller = DL_CALLER; +# ifdef SHARED return _dlerror_run (dlmopen_doit, &args) ? NULL : args.new; +# else + if (_dlerror_run (dlmopen_doit, &args)) + return NULL; + + __libc_register_dl_open_hook ((struct link_map *) args.new); + __libc_register_dlfcn_hook ((struct link_map *) args.new); + + return args.new; +# endif } -static_link_warning (dlmopen) +# ifdef SHARED +strong_alias (__dlmopen, dlmopen) +# endif +#endif -- cgit v1.2.3