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[ARM] Replace extramask with a full copy of the sigmask 

There's not much point in splitting the sigmask between two different
locations, so copy it entirely into a proper sigset_t.  This will
eventually allow rt_sigframe and sigframe to share more code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-06-15 18:02:25 +01:00 committed by Russell King
parent ce7a3fdc5c
commit cc1a852137
1 changed files with 3 additions and 10 deletions
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13
arch/arm/kernel/signal.c
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@ -194,7 +194,7 @@ struct aux_sigframe {
*/
struct sigframe {
struct sigcontext sc;
unsigned long extramask[_NSIG_WORDS-1];
sigset_t sigmask;
unsigned long retcode[2];
struct aux_sigframe aux __attribute__((aligned(8)));
};
@ -264,10 +264,7 @@ asmlinkage int sys_sigreturn(struct pt_regs *regs)
if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
goto badframe;
if (__get_user(set.sig[0], &frame->sc.oldmask)
|| (_NSIG_WORDS > 1
&& __copy_from_user(&set.sig[1], &frame->extramask,
sizeof(frame->extramask))))
if (__copy_from_user(&set, &frame->sigmask, sizeof(set)))
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
@ -486,11 +483,7 @@ setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *reg
return 1;
err |= setup_sigcontext(&frame->sc, &frame->aux, regs, set->sig[0]);
if (_NSIG_WORDS > 1) {
err |= __copy_to_user(frame->extramask, &set->sig[1],
sizeof(frame->extramask));
}
err |= __copy_to_user(&frame->sigmask, set, sizeof(*set));
if (err == 0)
err = setup_return(regs, ka, frame->retcode, frame, usig);