diff options
| author | Adam Lackorzynski <adam@os.inf.tu-dresden.de> | 2010-12-07 12:01:44 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2010-12-07 12:01:44 +0000 |
| commit | 49e14940adeea797abd2be4ccda97d0349b22aae (patch) | |
| tree | d7aacc378cfb5d919193801871ce4d759658d75f /target-arm/translate.c | |
| parent | 4809c612bc5eabf158d7a4656a98f5601c6bf104 (diff) | |
target-arm: Handle 'smc' as an undefined instruction
Refine check on bkpt so that smc and undefined instruction encodings are
handled as an undefined instruction and trap.
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Nathan Froyd <froydnj@codesourcery.com>
Diffstat (limited to 'target-arm/translate.c')
| -rw-r--r-- | target-arm/translate.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index 947de6d18a..bf1e643b53 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -6346,7 +6346,14 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) dead_tmp(tmp2); store_reg(s, rd, tmp); break; - case 7: /* bkpt */ + case 7: + /* SMC instruction (op1 == 3) + and undefined instructions (op1 == 0 || op1 == 2) + will trap */ + if (op1 != 1) { + goto illegal_op; + } + /* bkpt */ gen_set_condexec(s); gen_set_pc_im(s->pc - 4); gen_exception(EXCP_BKPT); |