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generic compat_sys_rt_sigprocmask()

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conditional on GENERIC_COMPAT_RT_SIGPROCMASK; by the end of that series
it will become the same thing as COMPAT and conditional will die out.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-12-25 13:32:58 -05:00
parent ad4b65a434
commit 322a56cb1f
4 changed files with 63 additions and 2 deletions
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13
kernel/compat.c
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@ -971,7 +971,7 @@ long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
}
void
sigset_from_compat (sigset_t *set, compat_sigset_t *compat)
sigset_from_compat(sigset_t *set, const compat_sigset_t *compat)
{
switch (_NSIG_WORDS) {
case 4: set->sig[3] = compat->sig[6] | (((long)compat->sig[7]) << 32 );
@ -982,6 +982,17 @@ sigset_from_compat (sigset_t *set, compat_sigset_t *compat)
}
EXPORT_SYMBOL_GPL(sigset_from_compat);
void
sigset_to_compat(compat_sigset_t *compat, const sigset_t *set)
{
switch (_NSIG_WORDS) {
case 4: compat->sig[7] = (set->sig[3] >> 32); compat->sig[6] = set->sig[3];
case 3: compat->sig[5] = (set->sig[2] >> 32); compat->sig[4] = set->sig[2];
case 2: compat->sig[3] = (set->sig[1] >> 32); compat->sig[2] = set->sig[1];
case 1: compat->sig[1] = (set->sig[0] >> 32); compat->sig[0] = set->sig[0];
}
}
asmlinkage long
compat_sys_rt_sigtimedwait (compat_sigset_t __user *uthese,
struct compat_siginfo __user *uinfo,