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authorHelge Deller <deller@gmx.de>2010-05-03 20:44:21 +0000
committerKyle McMartin <kyle@dreadnought.i.jkkm.org>2010-05-30 05:39:58 -0400
commit550f0d922286556c7ea43974bb7921effb5a5278 (patch)
tree2fea27b82d293da2c2a9ce92c1f6185620470d44 /arch/parisc
parentd24944d924d051281b276be8e5749b45785563c8 (diff)
downloadvexpress-lsk-550f0d922286556c7ea43974bb7921effb5a5278.tar.gz
parisc: clear floating point exception flag on SIGFPE signal
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>
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/math-emu/decode_exc.c1
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);