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[Qemu-arm] [PATCH 06/10] armv7m: set CFSR.UNDEFINSTR on undefined instru
From: |
Peter Maydell |
Subject: |
[Qemu-arm] [PATCH 06/10] armv7m: set CFSR.UNDEFINSTR on undefined instructions |
Date: |
Tue, 24 Jan 2017 19:16:16 +0000 |
From: Michael Davidsaver <address@hidden>
When we take an exception for an undefined instruction, set the
appropriate CFSR bit.
Signed-off-by: Michael Davidsaver <address@hidden>
[PMM: tweaked commit message, comment]
Signed-off-by: Peter Maydell <address@hidden>
---
target/arm/helper.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 7dc30f5..e6b1c36 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6072,6 +6072,7 @@ void arm_v7m_cpu_do_interrupt(CPUState *cs)
switch (cs->exception_index) {
case EXCP_UDEF:
armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_USAGE);
+ env->v7m.cfsr |= R_V7M_CFSR_UNDEFINSTR_MASK;
return;
case EXCP_SWI:
/* The PC already points to the next instruction. */
--
2.7.4
- [Qemu-arm] [PATCH 10/10] armv7m: R14 should reset to 0xffffffff, (continued)
- [Qemu-arm] [PATCH 10/10] armv7m: R14 should reset to 0xffffffff, Peter Maydell, 2017/01/24
- [Qemu-arm] [PATCH 03/10] armv7m: add state for v7M CCR, CFSR, HFSR, DFSR, MMFAR, BFAR, Peter Maydell, 2017/01/24
- [Qemu-arm] [PATCH 04/10] armv7m: implement CCR, CFSR, HFSR, DFSR, BFAR, and MMFAR, Peter Maydell, 2017/01/24
- [Qemu-arm] [PATCH 02/10] armv7m_nvic: keep a pointer to the CPU, Peter Maydell, 2017/01/24
- [Qemu-arm] [PATCH 06/10] armv7m: set CFSR.UNDEFINSTR on undefined instructions,
Peter Maydell <=