Patchwork target-arm: Handle 'smc' as an undefined instruction

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Submitter Adam Lackorzynski
Date June 4, 2010, 8:59 a.m.
Message ID <20100604085910.GA21351@os.inf.tu-dresden.de>
Download mbox | patch
Permalink /patch/54556/
State New
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Comments

Adam Lackorzynski - June 4, 2010, 8:59 a.m.
Handle smc as undefined instruction instead of having it wrongly interpreted
as some other instruction.

Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
---
 target-arm/translate.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

Patch

diff --git a/target-arm/translate.c b/target-arm/translate.c
index 0eccca5..afd6716 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -6344,7 +6344,11 @@  static void disas_arm_insn(CPUState * env, DisasContext *s)
             dead_tmp(tmp2);
             store_reg(s, rd, tmp);
             break;
-        case 7: /* bkpt */
+        case 7:
+            /* SMC? */
+            if ((insn & 0xfffffff0) == 0xe1600070)
+              goto illegal_op;
+            /* bkpt */
             gen_set_condexec(s);
             gen_set_pc_im(s->pc - 4);
             gen_exception(EXCP_BKPT);