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-rw-r--r--elf/dladdr.c64
1 files changed, 4 insertions, 60 deletions
diff --git a/elf/dladdr.c b/elf/dladdr.c
index 59e9783760..d82a9e78cb 100644
--- a/elf/dladdr.c
+++ b/elf/dladdr.c
@@ -1,5 +1,5 @@
-/* dladdr -- Locate the shared object symbol nearest a given address.
- Copyright (C) 1996 Free Software Foundation, Inc.
+/* Locate the shared object symbol nearest a given address.
+ Copyright (C) 1996, 1997 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
@@ -23,63 +23,7 @@
int
-dladdr (void *address, Dl_info *info)
+dladdr (const void *address, Dl_info *info)
{
- const ElfW(Addr) addr = (ElfW(Addr)) address;
- struct link_map *l, *match;
- const ElfW(Sym) *symtab, *matchsym;
- const char *strtab;
-
- /* Find the highest-addressed object that ADDRESS is not below. */
- match = NULL;
- for (l = _dl_loaded; l; l = l->l_next)
- if (addr >= l->l_addr && !match || match->l_addr < l->l_addr)
- match = l;
-
- if (match)
- {
- /* We know ADDRESS lies within MATCH if in any shared object.
- Make sure it isn't past the end of MATCH's segments. */
- size_t n = match->l_phnum;
- do
- --n;
- while (match->l_phdr[n].p_type != PT_LOAD);
- if (addr >= (match->l_addr +
- match->l_phdr[n].p_vaddr + match->l_phdr[n].p_memsz))
- /* Off the end of the highest-addressed shared object. */
- return 0;
- }
- else
- return 0;
-
- /* Now we know what object the address lies in. */
- info->dli_fname = match->l_name;
- info->dli_fbase = (void *) match->l_addr;
-
- symtab = ((void *) match->l_addr + match->l_info[DT_SYMTAB]->d_un.d_ptr);
- strtab = ((void *) match->l_addr + match->l_info[DT_STRTAB]->d_un.d_ptr);
-
- /* 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)
- matchsym = symtab;
-
- if (matchsym)
- {
- /* We found a symbol close by. Fill in its name and exact address. */
- info->dli_sname = strtab + matchsym->st_name;
- info->dli_saddr = (void *) (match->l_addr + matchsym->st_value);
- }
- else
- {
- /* No symbol matches. We return only the containing object. */
- info->dli_sname = NULL;
- info->dli_saddr = NULL;
- }
-
- return 1;
+ return _dl_addr (address, info);
}