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2009-10-22 Paul Pluzhnikov <ppluzhnikov@google.com>

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PR gdb/10819
	* dwarf2-frame.c (find_cie): Don't call bsearch on empty cie_table.
	* objfiles.c (find_pc_section): Likewise.
	(update_section_map): Don't allocate empty table.
This commit is contained in:
Paul Pluzhnikov 2009-10-22 20:20:27 +00:00
parent 02506ff1ad
commit 65a97ab329
3 changed files with 31 additions and 0 deletions
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16
gdb/objfiles.c
View file

@ -1113,6 +1113,14 @@ update_section_map (struct program_space *pspace,
if (insert_section_p (objfile->obfd, s->the_bfd_section))
alloc_size += 1;
/* This happens on detach/attach (e.g. in gdb.base/attach.exp). */
if (alloc_size == 0)
{
*pmap = NULL;
*pmap_size = 0;
return;
}
map = xmalloc (alloc_size * sizeof (*map));
i = 0;
@ -1175,6 +1183,14 @@ find_pc_section (CORE_ADDR pc)
pspace_info->objfiles_changed_p = 0;
}
/* The C standard (ISO/IEC 9899:TC2) requires the BASE argument to
bsearch be non-NULL. */
if (pspace_info->sections == NULL)
{
gdb_assert (pspace_info->num_sections == 0);
return NULL;
}
sp = (struct obj_section **) bsearch (&pc,
pspace_info->sections,
pspace_info->num_sections,