diff options
Diffstat (limited to 'ldso/libdl')
-rw-r--r-- | ldso/libdl/libdl.c | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/ldso/libdl/libdl.c b/ldso/libdl/libdl.c index 1bb68bdc8..5a4bb0dce 100644 --- a/ldso/libdl/libdl.c +++ b/ldso/libdl/libdl.c @@ -39,7 +39,7 @@ /* When libdl is loaded as a shared library, we need to load in * and use a pile of symbols from ldso... */ -extern char *_dl_find_hash(const char *, struct dyn_elf *, int) +extern char *_dl_find_hash(const char *, struct dyn_elf *, struct elf_resolve *, int) __attribute__ ((__weak__)); extern struct elf_resolve * _dl_load_shared_library(int, struct dyn_elf **, struct elf_resolve *, char *, int) __attribute__ ((__weak__)); @@ -136,7 +136,7 @@ void *dlopen(const char *libname, int flag) struct elf_resolve *tpnt1; void (*dl_brk) (void); int now_flag; - struct init_fini_list *tmp; + struct init_fini_list *tmp, *runp; int nlist, i; struct elf_resolve **init_fini_list; @@ -190,7 +190,7 @@ void *dlopen(const char *libname, int flag) dyn_chain = (struct dyn_elf *) malloc(sizeof(struct dyn_elf)); _dl_memset(dyn_chain, 0, sizeof(struct dyn_elf)); dyn_chain->dyn = tpnt; - tpnt->rtld_flags |= RTLD_GLOBAL; + tpnt->rtld_flags |= (flag & RTLD_GLOBAL); dyn_chain->next_handle = _dl_handles; _dl_handles = dyn_ptr = dyn_chain; @@ -227,7 +227,7 @@ void *dlopen(const char *libname, int flag) if (!tpnt1) goto oops; } - tpnt1->rtld_flags |= RTLD_GLOBAL; + tpnt1->rtld_flags |= (flag & RTLD_GLOBAL); dyn_ptr->next = (struct dyn_elf *) malloc(sizeof(struct dyn_elf)); _dl_memset (dyn_ptr->next, 0, sizeof (struct dyn_elf)); dyn_ptr = dyn_ptr->next; @@ -246,6 +246,15 @@ void *dlopen(const char *libname, int flag) i = 0; for (tcurr = tpnt; tcurr; tcurr = tcurr->next) { init_fini_list[i++] = tcurr; + for(runp = tcurr->init_fini; runp; runp = runp->next){ + if (!(runp->tpnt->rtld_flags & RTLD_GLOBAL)) { + tmp = malloc(sizeof(struct init_fini_list)); + tmp->tpnt = runp->tpnt; + tmp->next = tcurr->rtld_local; + tcurr->rtld_local = tmp; + } + } + } /* Sort the INIT/FINI list in dependency order. */ for (tcurr = tpnt; tcurr; tcurr = tcurr->next) { @@ -275,12 +284,10 @@ void *dlopen(const char *libname, int flag) if(_dl_debug) { fprintf(stderr, "\nINIT/FINI order and dependencies:\n"); for (i=0;i < nlist;i++) { - struct init_fini_list *tmp; - fprintf(stderr, "lib: %s has deps:\n", init_fini_list[i]->libname); - tmp = init_fini_list[i]->init_fini; - for ( ;tmp; tmp = tmp->next) - printf(" %s ", tmp->tpnt->libname); + runp = init_fini_list[i]->init_fini; + for ( ;runp; runp = runp->next) + printf(" %s ", runp->tpnt->libname); printf("\n"); } } @@ -409,7 +416,7 @@ void *dlsym(void *vhandle, const char *name) } } - ret = _dl_find_hash((char*)name, handle, 0); + ret = _dl_find_hash((char*)name, handle, NULL, 0); /* * Nothing found. @@ -422,6 +429,7 @@ void *dlsym(void *vhandle, const char *name) static int do_dlclose(void *vhandle, int need_fini) { struct dyn_elf *rpnt, *rpnt1; + struct init_fini_list *runp, *tmp; ElfW(Phdr) *ppnt; struct elf_resolve *tpnt; int (*dl_elf_fini) (void); @@ -461,7 +469,8 @@ static int do_dlclose(void *vhandle, int need_fini) } } } - free(handle->init_fini.init_fini); + if (handle->dyn->usage_count == 1) + free(handle->init_fini.init_fini); /* OK, this is a valid handle - now close out the file */ for (rpnt = handle; rpnt; rpnt = rpnt->next) { tpnt = rpnt->dyn; @@ -475,6 +484,11 @@ static int do_dlclose(void *vhandle, int need_fini) end = ppnt->p_vaddr + ppnt->p_memsz; } _dl_munmap((void*)tpnt->loadaddr, end); + /* Free elements in RTLD_LOCAL scope list */ + for (runp = tpnt->rtld_local; runp; runp = tmp) { + tmp = runp->next; + free(runp); + } /* Next, remove tpnt from the loaded_module list */ if (_dl_loaded_modules == tpnt) { _dl_loaded_modules = tpnt->next; |