diff options
| author | Helge Deller <deller@gmx.de> | 2010-05-03 20:44:21 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-07-05 11:23:07 -0700 |
| commit | 447926d82934a627152b3841b8014b5b9e01d48d (patch) | |
| tree | 71d657aa72edfcaff324b466fd35ba30ecbc6cec | |
| parent | 36346c14bde58f34c0a2df91635895f943eeb58b (diff) | |
parisc: clear floating point exception flag on SIGFPE signal
commit 550f0d922286556c7ea43974bb7921effb5a5278 upstream.
Clear the floating point exception flag before returning to
user space. This is needed, else the libc trampoline handler
may hit the same SIGFPE again while building up a trampoline
to a signal handler.
Fixes debian bug #559406.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | arch/parisc/math-emu/decode_exc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c index 3ca1c614921..27a7492ddb0 100644 --- a/arch/parisc/math-emu/decode_exc.c +++ b/arch/parisc/math-emu/decode_exc.c @@ -342,6 +342,7 @@ decode_fpu(unsigned int Fpu_register[], unsigned int trap_counts[]) return SIGNALCODE(SIGFPE, FPE_FLTINV); case DIVISIONBYZEROEXCEPTION: update_trap_counts(Fpu_register, aflags, bflags, trap_counts); + Clear_excp_register(exception_index); return SIGNALCODE(SIGFPE, FPE_FLTDIV); case INEXACTEXCEPTION: update_trap_counts(Fpu_register, aflags, bflags, trap_counts); |