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| author | Michal Simek <michal.simek@xilinx.com> | 2015-01-26 14:32:23 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2015-02-09 15:09:56 +0100 |
| commit | 1c424d26975345dec30e525319056cdb2280b170 (patch) | |
| tree | 0e77b2fdc29d9b0e1190d5152df38976ce9597e0 | |
| parent | cd8574c0a7b087e85b464779ab5d486644d5013b (diff) | |
| download | talos-obmc-uboot-1c424d26975345dec30e525319056cdb2280b170.tar.gz talos-obmc-uboot-1c424d26975345dec30e525319056cdb2280b170.zip | |
microblaze: Show return address from exception
Show also return address from exception which should
suggest where the problem is.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| -rw-r--r-- | arch/microblaze/cpu/exception.c | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/asm.h | 4 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/microblaze/cpu/exception.c b/arch/microblaze/cpu/exception.c index 227842f6a4..45729331f3 100644 --- a/arch/microblaze/cpu/exception.c +++ b/arch/microblaze/cpu/exception.c @@ -18,6 +18,8 @@ void _hw_exception_handler (void) /* loading excetpion state register ESR */ MFS (state, resr); printf ("Hardware exception at 0x%x address\n", address); + R17(address); + printf("Return address from exception 0x%x\n", address); switch (state & 0x1f) { /* mask on exception cause */ case 0x1: puts ("Unaligned data access exception\n"); diff --git a/arch/microblaze/include/asm/asm.h b/arch/microblaze/include/asm/asm.h index c1c3b03985..11f3dd0f0e 100644 --- a/arch/microblaze/include/asm/asm.h +++ b/arch/microblaze/include/asm/asm.h @@ -43,6 +43,10 @@ #define R14(val) \ __asm__ __volatile__ ("addi %0, r14, 0":"=r" (val)); +/* get return address from interrupt */ +#define R17(val) \ + __asm__ __volatile__ ("addi %0, r17, 0" : "=r" (val)); + #define NOP __asm__ __volatile__ ("nop"); /* use machine status registe USE_MSR_REG */ |
