target-arm: A64: Print ELR when taking exceptions

When taking an exception print the content of the exception link
register. This is useful especially for synchronous exceptions because
in that case this registers holds the address of the instruction that
generated the exception.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Message-id: 1435036655-16132-1-git-send-email-soren.brinkmann@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/target-arm/helper-a64.c b/target-arm/helper-a64.c
index e30af0659e299b66dddca76fc0fbf443e99239e4..08c95a3f5202df2384d2035b16f01fefc6137001 100644 (file)
--- a/target-arm/helper-a64.c
+++ b/target-arm/helper-a64.c
@@ -533,6 +533,8 @@ void aarch64_cpu_do_interrupt(CPUState *cs)
 
         env->condexec_bits = 0;
     }
+    qemu_log_mask(CPU_LOG_INT, "...with ELR 0x%" PRIx64 "\n",
+                  env->elr_el[new_el]);
 
     pstate_write(env, PSTATE_DAIF | new_mode);
     env->aarch64 = 1;