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| author | Albert Cahalan <acahalan@gmail.com> | 2006-12-07 02:14:06 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 02:14:06 +0100 |
| commit | 8e3de538eec95b57a5b86038988451c38ba83f7e (patch) | |
| tree | 620f12813f32f2ba13d2170c7884bfa0d6a1b245 /arch/x86_64/ia32 | |
| parent | b026872601976f666bae77b609dc490d1834bf77 (diff) | |
| download | linux-8e3de538eec95b57a5b86038988451c38ba83f7e.tar.gz linux-8e3de538eec95b57a5b86038988451c38ba83f7e.tar.bz2 linux-8e3de538eec95b57a5b86038988451c38ba83f7e.zip | |
[PATCH] x86-64: Support -mregparm arguments for signals with SA_SIGINFO in compat mode
The recent change to make x86_64 support i386 binaries compiled
with -mregparm=3 only covered signal handlers without SA_SIGINFO.
(the 3-arg "real-time" ones)
To be compatible with i386, both types should be supported.
Signed-off-by: Albert Cahalan <acahalan@gmail.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64/ia32')
| -rw-r--r-- | arch/x86_64/ia32/ia32_signal.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/ia32/ia32_signal.c b/arch/x86_64/ia32/ia32_signal.c index 0e0a266d976f..ff499ef2a1ba 100644 --- a/arch/x86_64/ia32/ia32_signal.c +++ b/arch/x86_64/ia32/ia32_signal.c @@ -584,6 +584,11 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, regs->rdx = (unsigned long) &frame->info; regs->rcx = (unsigned long) &frame->uc; + /* Make -mregparm=3 work */ + regs->rax = sig; + regs->rdx = (unsigned long) &frame->info; + regs->rcx = (unsigned long) &frame->uc; + asm volatile("movl %0,%%ds" :: "r" (__USER32_DS)); asm volatile("movl %0,%%es" :: "r" (__USER32_DS)); |