diff options
Diffstat (limited to 'elf/dl-addr.c')
| -rw-r--r-- | elf/dl-addr.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/elf/dl-addr.c b/elf/dl-addr.c index 0a06525ce9..96fa2e2ebc 100644 --- a/elf/dl-addr.c +++ b/elf/dl-addr.c @@ -1,5 +1,5 @@ /* Locate the shared object symbol nearest a given address. - Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1996-2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -30,6 +30,7 @@ _dl_addr (const void *address, Dl_info *info) struct link_map *l, *match; const ElfW(Sym) *symtab, *matchsym; const char *strtab; + ElfW(Word) strtabsize; /* Find the highest-addressed object that ADDRESS is not below. */ match = NULL; @@ -70,15 +71,17 @@ _dl_addr (const void *address, Dl_info *info) symtab = (const void *) D_PTR (match, l_info[DT_SYMTAB]); strtab = (const void *) D_PTR (match, l_info[DT_STRTAB]); + strtabsize = match->l_info[DT_STRSZ]->d_un.d_val; /* We assume that the string table follows the symbol table, because there is no way in ELF to know the size of the dynamic symbol table!! */ for (matchsym = NULL; (void *) symtab < (void *) strtab; ++symtab) if (addr >= match->l_addr + symtab->st_value - && (!matchsym - || (matchsym->st_value < symtab->st_value - && (ELFW(ST_BIND) (symtab->st_info) == STB_GLOBAL - || ELFW(ST_BIND) (symtab->st_info) == STB_WEAK)))) + && addr < match->l_addr + symtab->st_value + symtab->st_size + && symtab->st_name < strtabsize + && (matchsym == NULL || matchsym->st_value < symtab->st_value) + && (ELFW(ST_BIND) (symtab->st_info) == STB_GLOBAL + || ELFW(ST_BIND) (symtab->st_info) == STB_WEAK)) matchsym = symtab; if (matchsym) |