+2008-09-19 Andrew Stubbs <ams@codesourcery.com>
+
+ * frame.c (get_frame_register_bytes): Detect bad debug info.
+
2008-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix a crash on uninitialized ECS->EVENT_THREAD for a newly found thread.
CORE_ADDR offset, int len, gdb_byte *myaddr)
{
struct gdbarch *gdbarch = get_frame_arch (frame);
+ int i;
+ int maxsize;
/* Skip registers wholly inside of OFFSET. */
while (offset >= register_size (gdbarch, regnum))
regnum++;
}
+ /* Detect bad debug info. */
+ maxsize = -offset;
+ for (i = regnum; i < gdbarch_num_regs (gdbarch); i++)
+ {
+ int thissize = register_size (gdbarch, i);
+ if (thissize == 0)
+ break;
+ maxsize += thissize;
+ }
+ if (len > maxsize)
+ {
+ warning (_("Bad debug information detected: "
+ "Attempt to read %d bytes from registers."), len);
+ return 0;
+ }
+
/* Copy the data. */
while (len > 0)
{