diff options
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2007-03-10 01:03:48 +0900 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-03-17 01:03:25 +0000 |
| commit | c6a2f4679331206ef5d353fc9a6cda2fa4aef8c6 (patch) | |
| tree | 9634ba2d5b6c6c97f4301b28088c68254201bf74 /arch/mips/kernel/signal_n32.c | |
| parent | f1dbf8e718ef0ddb196a28bcc71925ac7da881af (diff) | |
[MIPS] Check FCSR for pending interrupts, alternative version
Commit 6d6671066a311703bca1b91645bb1e04cc983387 is incomplete and misses
non-r4k CPUs. This patch reverts the commit and fixes in other way.
o Do FCSR checking in caller of restore_fp_context.
o Send SIGFPE if the signal handler set any FPU exception bits.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/signal_n32.c')
| -rw-r--r-- | arch/mips/kernel/signal_n32.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c index ecf1f7ecaad..a9202fa9598 100644 --- a/arch/mips/kernel/signal_n32.c +++ b/arch/mips/kernel/signal_n32.c @@ -127,6 +127,7 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) sigset_t set; stack_t st; s32 sp; + int sig; frame = (struct rt_sigframe_n32 __user *) regs.regs[29]; if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) @@ -140,8 +141,11 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) recalc_sigpending(); spin_unlock_irq(¤t->sighand->siglock); - if (restore_sigcontext(®s, &frame->rs_uc.uc_mcontext)) + sig = restore_sigcontext(®s, &frame->rs_uc.uc_mcontext); + if (sig < 0) goto badframe; + else if (sig) + force_sig(sig, current); /* The ucontext contains a stack32_t, so we must convert! */ if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp)) |