Messages in this thread Patch in this message | | | From | David Howells <> | Subject | [PATCH] FRV: Correctly determine the address of an illegal instruction | Date | Mon, 14 Apr 2008 11:20:59 +0100 |
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From: David Howells <dhowells@redhat.com>
Correctly determine the address of an illegal instruction. The EPCR0 register holds this value (masked by EPCR0_PC) if the validity bit is set (masked by EPCR0_V). So the test as to whether the contents of the register are usable should be involve checking the _V bit, not the _PC bits.
Signed-off-by: David Howells <dhowells@redhat.com> ---
arch/frv/kernel/traps.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c index 2f7e668..7089c24 100644 --- a/arch/frv/kernel/traps.c +++ b/arch/frv/kernel/traps.c @@ -73,7 +73,7 @@ asmlinkage void illegal_instruction(unsigned long esfr1, unsigned long epcr0, un epcr0, esr0, esfr1); info.si_errno = 0; - info.si_addr = (void *) ((epcr0 & EPCR0_PC) ? (epcr0 & EPCR0_PC) : __frame->pc); + info.si_addr = (void *) ((epcr0 & EPCR0_V) ? (epcr0 & EPCR0_PC) : __frame->pc); switch (__frame->tbr & TBR_TT) { case TBR_TT_ILLEGAL_INSTR:
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