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| author | David Rivshin <DRivshin@allworx.com> | 2018-04-25 21:15:01 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2018-05-19 11:53:46 +0100 |
| commit | 76ed0b803a2ab793a1b27d1dfe0de7955282cd34 (patch) | |
| tree | c9b84538f7ffcc20207fd8c4ef5cd2a41cb8244d /scripts/const_structs.checkpatch | |
| parent | a70c3ee34b093bf2b007aceda5b444906f8964c7 (diff) | |
| download | kernel-76ed0b803a2ab793a1b27d1dfe0de7955282cd34.tar.gz | |
ARM: 8764/1: kgdb: fix NUMREGBYTES so that gdb_regs[] is the correct size
NUMREGBYTES (which is used as the size for gdb_regs[]) is incorrectly
based on DBG_MAX_REG_NUM instead of GDB_MAX_REGS. DBG_MAX_REG_NUM
is the number of total registers, while GDB_MAX_REGS is the number
of 'unsigned longs' it takes to serialize those registers. Since
FP registers require 3 'unsigned longs' each, DBG_MAX_REG_NUM is
smaller than GDB_MAX_REGS.
This causes GDB 8.0 give the following error on connect:
"Truncated register 19 in remote 'g' packet"
This also causes the register serialization/deserialization logic
to overflow gdb_regs[], overwriting whatever follows.
Fixes: 834b2964b7ab ("kgdb,arm: fix register dump")
Cc: <stable@vger.kernel.org> # 2.6.37+
Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rabin Vincent <rabin@rab.in>
Tested-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'scripts/const_structs.checkpatch')
0 files changed, 0 insertions, 0 deletions