diff options
Diffstat (limited to 'ldso/libdl')
| -rw-r--r-- | ldso/libdl/libdl.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/ldso/libdl/libdl.c b/ldso/libdl/libdl.c index 83dfd0898..4ecd1c55e 100644 --- a/ldso/libdl/libdl.c +++ b/ldso/libdl/libdl.c @@ -706,12 +706,12 @@ void *dlsym(void *vhandle, const char *name) tpnt = NULL; if (handle == _dl_symbol_tables) tpnt = handle->dyn; /* Only search RTLD_GLOBAL objs if global object */ - ret = _dl_find_hash(name2, &handle->dyn->symbol_scope, tpnt, 0, &sym_ref); + ret = _dl_find_hash(name2, &handle->dyn->symbol_scope, tpnt, ELF_RTYPE_CLASS_DLSYM, &sym_ref); #if defined(USE_TLS) && USE_TLS && defined SHARED if (sym_ref.sym && (ELF_ST_TYPE(sym_ref.sym->st_info) == STT_TLS) && (sym_ref.tpnt)) { /* The found symbol is a thread-local storage variable. - Return the address for to the current thread. */ + Return its address for the current thread. */ ret = _dl_tls_symaddr ((struct link_map *)sym_ref.tpnt, (Elf32_Addr)ret); } #endif @@ -1118,7 +1118,11 @@ int dladdr(const void *__address, Dl_info * __info) ElfW(Addr) symbol_addr; symbol_addr = (ElfW(Addr)) DL_RELOC_ADDR(pelf->loadaddr, symtab[si].st_value); - if (symbol_addr <= (ElfW(Addr))__address && (!sf || sa < symbol_addr)) { + if ((symtab[si].st_shndx != SHN_UNDEF + || symtab[si].st_value != 0) + && ELF_ST_TYPE(symtab[si].st_info) != STT_TLS + && DL_ADDR_SYM_MATCH(symbol_addr, &symtab[si], sa, + (ElfW(Addr)) __address)) { sa = symbol_addr; sn = si; sf = 1; @@ -1134,7 +1138,11 @@ int dladdr(const void *__address, Dl_info * __info) ElfW(Addr) symbol_addr; symbol_addr = (ElfW(Addr)) DL_RELOC_ADDR(pelf->loadaddr, symtab[si].st_value); - if (symbol_addr <= (ElfW(Addr))__address && (!sf || sa < symbol_addr)) { + if ((symtab[si].st_shndx != SHN_UNDEF + || symtab[si].st_value != 0) + && ELF_ST_TYPE(symtab[si].st_info) != STT_TLS + && DL_ADDR_SYM_MATCH(symbol_addr, &symtab[si], sa, + (ElfW(Addr)) __address)) { sa = symbol_addr; sn = si; sf = 1; |