Toolchain/binutils-gdb
1
0
Fork 0
forked from Imagelibrary/binutils-gdb
Code Pull Requests Activity

2008-09-19 Andrew Stubbs <ams@codesourcery.com>

Browse Source 
* frame.c (get_frame_register_bytes): Detect bad debug info.
This commit is contained in:
Andrew Stubbs
2008-09-19 18:12:17 +00:00
parent 5db484ff3d
commit 3f27f2a479
2 changed files with 22 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
gdb/frame.c
View File

@@ -796,6 +796,8 @@ get_frame_register_bytes (struct frame_info *frame, int regnum,
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))
@@ -804,6 +806,22 @@ get_frame_register_bytes (struct frame_info *frame, int 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)
{