diff options
| author | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2012-01-10 10:27:11 +0100 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2012-01-12 13:54:16 +0100 |
| commit | 5818dee572deabb1e75a0901b43caa81fb30f419 (patch) | |
| tree | 98ce117e5395b85d8aef4fcc0637059586aa6f4f /target-microblaze/op_helper.c | |
| parent | 48b5e96f0f7006f46a7d6c6f0934a6acdda22e3b (diff) | |
microblaze: Emulate the hw stackprotector
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Diffstat (limited to 'target-microblaze/op_helper.c')
| -rw-r--r-- | target-microblaze/op_helper.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c index d99c564375..7232c71998 100644 --- a/target-microblaze/op_helper.c +++ b/target-microblaze/op_helper.c @@ -483,6 +483,17 @@ void helper_memalign(uint32_t addr, uint32_t dr, uint32_t wr, uint32_t mask) } } +void helper_stackprot(uint32_t addr) +{ + if (addr < env->slr || addr > env->shr) { + qemu_log("Stack protector violation at %x %x %x\n", + addr, env->slr, env->shr); + env->sregs[SR_EAR] = addr; + env->sregs[SR_ESR] = ESR_EC_STACKPROT; + helper_raise_exception(EXCP_HW_EXCP); + } +} + #if !defined(CONFIG_USER_ONLY) /* Writes/reads to the MMU's special regs end up here. */ uint32_t helper_mmu_read(uint32_t rn) |