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ppc64: Fix delivery of RT signals to 32-bit processes. 

An error in merging led to 32-bit processes getting the wrong link
register value on entry to RT signal handlers, and the wrong stack
chain as well.  This fixes it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras 2005-10-22 14:46:33 +10:00
parent 5c8c56ebdf
commit e2b5530698
1 changed files with 1 additions and 2 deletions
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3
arch/powerpc/kernel/signal_32.c
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@ -821,7 +821,7 @@ static int handle_rt_signal(unsigned long sig, struct k_sigaction *ka,
goto badframe;
regs->link = (unsigned long) frame->tramp;
}
if (put_user(regs->gpr[1], (unsigned long __user *)newsp))
if (put_user(regs->gpr[1], (u32 __user *)newsp))
goto badframe;
regs->gpr[1] = newsp;
regs->gpr[3] = sig;
@ -829,7 +829,6 @@ static int handle_rt_signal(unsigned long sig, struct k_sigaction *ka,
regs->gpr[5] = (unsigned long) &rt_sf->uc;
regs->gpr[6] = (unsigned long) rt_sf;
regs->nip = (unsigned long) ka->sa.sa_handler;
regs->link = (unsigned long) frame->tramp;
regs->trap = 0;
#ifdef CONFIG_PPC64
regs->result = 0;