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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 /malloc/arena.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 'malloc/arena.c')
| -rw-r--r-- | malloc/arena.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/malloc/arena.c b/malloc/arena.c index 9018a4f..024e191 100644 --- a/malloc/arena.c +++ b/malloc/arena.c @@ -347,6 +347,9 @@ __failing_morecore (ptrdiff_t d) { return (void *) MORECORE_FAILURE; } + +extern struct dl_open_hook *_dl_open_hook; +libc_hidden_proto (_dl_open_hook); # endif # if defined SHARED && defined USE_TLS && !USE___THREAD @@ -429,10 +432,14 @@ ptmalloc_init (void) main_arena.next = &main_arena; #if defined _LIBC && defined SHARED - /* In case this libc copy is in a non-default namespace, never use brk. */ + /* In case this libc copy is in a non-default namespace, never use brk. + Likewise if dlopened from statically linked program. */ Dl_info di; struct link_map *l; - if (_dl_addr (ptmalloc_init, &di, &l, NULL) != 0 && l->l_ns != LM_ID_BASE) + + if (_dl_open_hook != NULL + || (_dl_addr (ptmalloc_init, &di, &l, NULL) != 0 + && l->l_ns != LM_ID_BASE)) __morecore = __failing_morecore; #endif |