* [PATCH] Handle media instructions in arm software single step.
@ 2015-06-29 16:32 Yao Qi
0 siblings, 0 replies; only message in thread
From: Yao Qi @ 2015-06-29 16:32 UTC (permalink / raw)
To: gdb-patches
This patch fixes PR 18605 which is about incorrectly decoding media
instructions in software single step.
gdb:
2015-06-29 Yao Qi <yao.qi@linaro.org>
PR tdep/18605
* arm-tdep.c (arm_get_next_pc_raw): Break for media
instructions.
---
gdb/arm-tdep.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index c99f2a9..527bd01 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -4927,6 +4927,13 @@ arm_get_next_pc_raw (struct frame_info *frame, CORE_ADDR pc)
case 0x5: /* data transfer */
case 0x6:
case 0x7:
+ if (bits (this_instr, 25, 27) == 0x3 && bit (this_instr, 4) == 1)
+ {
+ /* Media instructions and architecturally undefined
+ instructions. */
+ break;
+ }
+
if (bit (this_instr, 20))
{
/* load */
--
1.9.1
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