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microblaze: clean up signal handling

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When legacy signal handling is disabled, the
arch/microblaze/kernel/signal.c implementation can
be much simpler, as most of it is handled generically
from kernel/signal.c.

This is also a prerequisite for using the generic
asm/unistd.h, which does not provide __NR_sigreturn,
because this macro is referenced by the current signal.c
implementation.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Arnd Bergmann
2009-06-18 19:55:29 +02:00
committed by Michal Simek
parent 0a58458341
commit 3183e06863
7 changed files with 41 additions and 343 deletions
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11
arch/microblaze/include/asm/syscalls.h
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@@ -26,23 +26,16 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
unsigned long fd, off_t offset);
/* from signal.c */
asmlinkage int sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs);
asmlinkage int sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
struct pt_regs *regs);
asmlinkage int sys_sigaction(int sig, const struct old_sigaction *act,
struct old_sigaction *oact);
asmlinkage long sys_rt_sigaction(int sig, const struct sigaction __user *act,
struct sigaction __user *oact, size_t sigsetsize);
asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
struct pt_regs *regs);
asmlinkage int sys_sigreturn(struct pt_regs *regs);
asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
asmlinkage long sys_rt_sigreturn(struct pt_regs *regs);
#endif /* __KERNEL__ */
#endif /* __ASM_MICROBLAZE_SYSCALLS_H */