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dwarf_loader: DW_AT_name can be NULL in DW_TAG_compile_unit 

So pass "" in this case so that cu__new doesn't segfaults on strdup'ing
it.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-04-25 11:41:47 -03:00
parent 071cb5fd75
commit 0a2a9e03c7
1 changed files with 8 additions and 4 deletions
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12
dwarf_loader.c
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@ -1944,13 +1944,17 @@ static int cus__load_module(struct cus *self, struct conf_load *conf,
while (dwarf_nextcu(dw, off, &noff, &cuhl, NULL, NULL, NULL) == 0) {
Dwarf_Die die_mem, tmp;
Dwarf_Die *cu_die = dwarf_offdie(dw, off + cuhl, &die_mem);
struct cu *cu;
uint8_t pointer_size, offset_size;
dwarf_diecu(cu_die, &tmp, &pointer_size, &offset_size);
cu = cu__new(attr_string(cu_die, DW_AT_name), pointer_size,
build_id, build_id_len, filename);
/*
* DW_AT_name in DW_TAG_compile_unit can be NULL, first
* seen in:
* /usr/libexec/gcc/x86_64-redhat-linux/4.3.2/ecj1.debug
*/
const char *name = attr_string(cu_die, DW_AT_name);
struct cu *cu = cu__new(name ?: "", pointer_size,
build_id, build_id_len, filename);
if (cu == NULL)
return DWARF_CB_ABORT;
cu->uses_global_strings = true;