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[BZ #2683]
2006-08-24 Ulrich Drepper <drepper@redhat.com> [BZ #2683] * elf/dl-addr.c (_dl_addr): Don't ignore all undefined symbols. If symbol has a value use it. * elf/tst-dladdr1.c: New file. * elf/Makefile: Add rules to build and run tst-addr1.
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@ -1,3 +1,11 @@
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2006-08-24 Ulrich Drepper <drepper@redhat.com>
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[BZ #2683]
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* elf/dl-addr.c (_dl_addr): Don't ignore all undefined symbols.
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If symbol has a value use it.
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* elf/tst-dladdr1.c: New file.
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* elf/Makefile: Add rules to build and run tst-addr1.
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2006-08-24 Jakub Jelinek <jakub@redhat.com>
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* malloc/malloc.c (sYSMALLOc): Avoid infinite loop if MMAP
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@ -170,7 +170,7 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
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tst-dlmopen1 tst-dlmopen2 tst-dlmopen3 \
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unload3 unload4 unload5 unload6 tst-global1 order2 \
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tst-audit1 tst-audit2 \
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tst-stackguard1
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tst-stackguard1 tst-addr1
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# reldep9
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test-srcs = tst-pathopt
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tests-vis-yes = vismain
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@ -906,3 +906,5 @@ $(objpfx)tst-leaks1-mem: $(objpfx)tst-leaks1.out
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$(common-objpfx)malloc/mtrace $(objpfx)tst-leaks1.mtrace > $@
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tst-leaks1-ENV = MALLOC_TRACE=$(objpfx)tst-leaks1.mtrace
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$(objpfx)tst-addr1: $(libdl)
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@ -91,7 +91,8 @@ _dl_addr (const void *address, Dl_info *info,
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{
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/* The hash table never references local symbols
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so we can omit that test here. */
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if (symtab[symndx].st_shndx != SHN_UNDEF
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if ((symtab[symndx].st_shndx != SHN_UNDEF
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|| symtab[symndx].st_value != 0)
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#ifdef USE_TLS
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&& ELFW(ST_TYPE) (symtab[symndx].st_info) != STT_TLS
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#endif
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@ -125,7 +126,8 @@ _dl_addr (const void *address, Dl_info *info,
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#ifdef USE_TLS
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&& ELFW(ST_TYPE) (symtab->st_info) != STT_TLS
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#endif
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&& symtab->st_shndx != SHN_UNDEF
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&& (symtab->st_shndx != SHN_UNDEF
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|| symtab->st_value != 0)
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&& DL_ADDR_SYM_MATCH (match, symtab, matchsym, addr)
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&& symtab->st_name < strtabsize)
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matchsym = (ElfW(Sym) *) symtab;
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19
elf/tst-addr1.c
Normal file
19
elf/tst-addr1.c
Normal file
@ -0,0 +1,19 @@
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#include <dlfcn.h>
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#include <stdio.h>
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#include <string.h>
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static int
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do_test (void)
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{
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Dl_info i;
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if (dladdr (&printf, &i) == 0)
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{
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puts ("not found");
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return 1;
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}
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printf ("found symbol %s in %s\n", i.dli_sname, i.dli_fname);
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return i.dli_sname == NULL || strcmp (i.dli_sname, "printf") != 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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@ -59,8 +59,8 @@ __BEGIN_DECLS
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/* Result of the lookup functions and how to retrieve the base address. */
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typedef struct link_map *lookup_t;
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# define LOOKUP_VALUE(map) map
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# define LOOKUP_VALUE_ADDRESS(map) ((map) ? (map)->l_addr : 0)
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#define LOOKUP_VALUE(map) map
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#define LOOKUP_VALUE_ADDRESS(map) ((map) ? (map)->l_addr : 0)
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/* On some architectures a pointer to a function is not just a pointer
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to the actual code of the function but rather an architecture
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