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[POWERPC] Consolidate do_signal

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do_signal has exactly the same behaviour on 32bit and 64bit and 32bit
compat on 64bit for handling 32bit signals.  Consolidate all these
into one common function in signal.c.  The only odd left over is
the try_to_free in the 32bit version that no other architecture has
in mainline (only in i386 for some odd SuSE release).  We should
probably get rid of it in a separate patch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Christoph Hellwig
2007-06-04 15:15:52 +10:00
committed by Paul Mackerras
parent db277e9a67
commit f478f5430c
4 changed files with 120 additions and 175 deletions
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14
arch/powerpc/kernel/signal.h
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@@ -13,7 +13,17 @@
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
extern void restore_sigmask(sigset_t *set);
extern void check_syscall_restart(struct pt_regs *regs, struct k_sigaction *ka,
int has_handler);
extern int handle_signal32(unsigned long sig, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset,
struct pt_regs *regs, unsigned long newsp);
extern int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset,
struct pt_regs *regs, unsigned long newsp);
extern int handle_rt_signal64(int signr, struct k_sigaction *ka,
siginfo_t *info, sigset_t *set,
struct pt_regs *regs);
#endif /* _POWERPC_ARCH_SIGNAL_H */