AcoSail/kernel_optimize_test
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sparc: switch sys_compat_rt_sigaction() to COMPAT_SYSCALL_DEFINE

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note that while struct compat_sigaction is the generic one, syscall
itself *isn't* - different arguments.  IOW, CONFIG_ODD_RT_SIGACTION
stays.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-12-25 18:45:43 -05:00
parent 8d65681daf
commit bdc40abf07
2 changed files with 8 additions and 17 deletions
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1
arch/sparc/Kconfig
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@ -46,6 +46,7 @@ config SPARC
select GENERIC_COMPAT_RT_SIGQUEUEINFO
select GENERIC_COMPAT_RT_SIGPROCMASK
select GENERIC_COMPAT_RT_SIGPENDING
select GENERIC_COMPAT_RT_SIGACTION
config SPARC32
def_bool !64BIT

24
arch/sparc/kernel/sys_sparc32.c
View File

@ -248,11 +248,11 @@ asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act
return ret;
}
asmlinkage long compat_sys_rt_sigaction(int sig,
struct sigaction32 __user *act,
struct sigaction32 __user *oact,
void __user *restorer,
compat_size_t sigsetsize)
COMPAT_SYSCALL_DEFINE5(rt_sigaction, int, sig,
struct compat_sigaction __user *,act,
struct compat_sigaction __user *,oact,
void __user *,restorer,
compat_size_t,sigsetsize)
{
struct k_sigaction new_ka, old_ka;
int ret;
@ -269,12 +269,7 @@ asmlinkage long compat_sys_rt_sigaction(int sig,
ret = get_user(u_handler, &act->sa_handler);
new_ka.sa.sa_handler = compat_ptr(u_handler);
ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
switch (_NSIG_WORDS) {
case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
}
sigset_from_compat(&new_ka.sa.sa_mask, &set32);
ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
ret |= __get_user(u_restorer, &act->sa_restorer);
new_ka.sa.sa_restorer = compat_ptr(u_restorer);
@ -285,12 +280,7 @@ asmlinkage long compat_sys_rt_sigaction(int sig,
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
switch (_NSIG_WORDS) {
case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
}
sigset_to_compat(&set32, &old_ka.sa.sa_mask);
ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);