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x86: switch to generic compat rt_sigpending()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-12-25 14:46:17 -05:00
parent 49cb25e929
commit f45adb0499
5 changed files with 3 additions and 27 deletions
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1
arch/x86/Kconfig
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@ -114,6 +114,7 @@ config X86
select MODULES_USE_ELF_RELA if X86_64
select CLONE_BACKWARDS if X86_32
select GENERIC_SIGALTSTACK
select GENERIC_COMPAT_RT_SIGPENDING
config INSTRUCTION_DECODER
def_bool y

24
arch/x86/ia32/sys_ia32.c
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@ -310,30 +310,6 @@ asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
return ret;
}
asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
compat_size_t sigsetsize)
{
sigset_t s;
compat_sigset_t s32;
int ret;
mm_segment_t old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize);
set_fs(old_fs);
if (!ret) {
switch (_NSIG_WORDS) {
case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
}
if (copy_to_user(set, &s32, sizeof(compat_sigset_t)))
return -EFAULT;
}
return ret;
}
asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
compat_siginfo_t __user *uinfo)
{

1
arch/x86/include/asm/sys_ia32.h
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@ -45,7 +45,6 @@ asmlinkage long sys32_sysfs(int, u32, u32);
asmlinkage long sys32_sched_rr_get_interval(compat_pid_t,
struct compat_timespec __user *);
asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *, compat_size_t);
asmlinkage long sys32_rt_sigqueueinfo(int, int, compat_siginfo_t __user *);
asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);

2
arch/x86/syscalls/syscall_32.tbl
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@ -182,7 +182,7 @@
173 i386 rt_sigreturn sys_rt_sigreturn stub32_rt_sigreturn
174 i386 rt_sigaction sys_rt_sigaction sys32_rt_sigaction
175 i386 rt_sigprocmask sys_rt_sigprocmask
176 i386 rt_sigpending sys_rt_sigpending sys32_rt_sigpending
176 i386 rt_sigpending sys_rt_sigpending compat_sys_rt_sigpending
177 i386 rt_sigtimedwait sys_rt_sigtimedwait compat_sys_rt_sigtimedwait
178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo sys32_rt_sigqueueinfo
179 i386 rt_sigsuspend sys_rt_sigsuspend

2
arch/x86/syscalls/syscall_64.tbl
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@ -335,7 +335,7 @@
519 x32 recvmsg compat_sys_recvmsg
520 x32 execve stub_x32_execve
521 x32 ptrace compat_sys_ptrace
522 x32 rt_sigpending sys32_rt_sigpending
522 x32 rt_sigpending compat_sys_rt_sigpending
523 x32 rt_sigtimedwait compat_sys_rt_sigtimedwait
524 x32 rt_sigqueueinfo sys32_rt_sigqueueinfo
525 x32 sigaltstack compat_sys_sigaltstack