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elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.

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* elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.

From-SVN: r201159
This commit is contained in:
Alexander Monakov 2013-07-23 13:17:10 +04:00 committed by Alexander Monakov
parent 0153887c3d
commit 78625ce608
2 changed files with 43 additions and 5 deletions
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4
libbacktrace/ChangeLog
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@ -1,3 +1,7 @@
2013-07-23 Alexander Monakov <amonakov@ispras.ru>
* elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.
2013-07-23 Alexander Monakov <amonakov@ispras.ru>
* elf.c (backtrace_initialize): Pass elf_fileline_fn to

44
libbacktrace/elf.c
View File

@ -454,12 +454,46 @@ elf_syminfo (struct backtrace_state *state, uintptr_t pc,
void *data)
{
struct elf_syminfo_data *edata;
struct elf_symbol *sym;
struct elf_symbol *sym = NULL;
if (!state->threaded)
{
for (edata = (struct elf_syminfo_data *) state->syminfo_data;
edata != NULL;
edata = edata->next)
{
sym = ((struct elf_symbol *)
bsearch (&pc, edata->symbols, edata->count,
sizeof (struct elf_symbol), elf_symbol_search));
if (sym != NULL)
break;
}
}
else
{
struct elf_syminfo_data **pp;
pp = (struct elf_syminfo_data **) (void *) &state->syminfo_data;
while (1)
{
edata = *pp;
/* Atomic load. */
while (!__sync_bool_compare_and_swap (pp, edata, edata))
edata = *pp;
if (edata == NULL)
break;
sym = ((struct elf_symbol *)
bsearch (&pc, edata->symbols, edata->count,
sizeof (struct elf_symbol), elf_symbol_search));
if (sym != NULL)
break;
pp = &edata->next;
}
}
edata = (struct elf_syminfo_data *) state->syminfo_data;
sym = ((struct elf_symbol *)
bsearch (&pc, edata->symbols, edata->count,
sizeof (struct elf_symbol), elf_symbol_search));
if (sym == NULL)
callback (data, pc, NULL, 0);
else