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| author | David Howells <dhowells@redhat.com> | 2008-04-14 11:20:59 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-14 07:55:15 -0700 |
| commit | 4f3f8e94b7b079131f0faf641e8afd790a6537d1 (patch) | |
| tree | c3786d428a84b0be512fc6ff92e5687c44667ee5 /arch/frv/kernel | |
| parent | 120dd64cacd4fb796bca0acba3665553f1d9ecaa (diff) | |
| download | lwn-4f3f8e94b7b079131f0faf641e8afd790a6537d1.tar.gz lwn-4f3f8e94b7b079131f0faf641e8afd790a6537d1.zip | |
FRV: Correctly determine the address of an illegal instruction
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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/frv/kernel')
| -rw-r--r-- | 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 2f7e66877f3b..7089c2428b3f 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: |