]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
[PATCH] x86-64: Support -mregparm arguments for signals with SA_SIGINFO in compat...
authorAlbert Cahalan <acahalan@gmail.com>
Thu, 7 Dec 2006 01:14:06 +0000 (02:14 +0100)
committerAndi Kleen <andi@basil.nowhere.org>
Thu, 7 Dec 2006 01:14:06 +0000 (02:14 +0100)
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>
arch/x86_64/ia32/ia32_signal.c

index 0e0a266d976fb1ee5c1b446c119b2fa2c6e34afb..ff499ef2a1ba10674cba34782c546cbeac43a51a 100644 (file)
@@ -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));