libdw. Don't blow up stack in dwarf_getsrclines with lots of lines.
When a CU has a really large number of lines dwarf_getsrclines could blow
up the stack because it uses alloca for temporary storage. Use malloc and
free if the number of lines gets too big.
diff --git a/libdw/ChangeLog b/libdw/ChangeLog
index 22f8b0c..aa1e2cc 100644
--- a/libdw/ChangeLog
+++ b/libdw/ChangeLog
@@ -1,5 +1,11 @@
2013-07-02 Mark Wielaard <mjw@redhat.com>
+ * dwarf_getsrclines.c (dwarf_getsrclines): Add new stack allocation
+ limit MAX_STACK_ALLOC. After MAX_STACK_ALLOC lines use malloc in
+ NEW_LINE macro. Free malloced line records if any at the end.
+
+2013-07-02 Mark Wielaard <mjw@redhat.com>
+
* dwarf_getcfi_elf.c (getcfi_shdr): Check sh_type == SHT_PROGBITS.
2013-06-26 Mark Wielaard <mjw@redhat.com>