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Commit 50bcb7e4 authored by Al Viro's avatar Al Viro
Browse files

arm: switch to generic old sigaction() 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent b68fec24

arch/arm/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -58,6 +58,7 @@ config ARM 
	select CLONE_BACKWARDS

	select GENERIC_SIGALTSTACK

	select OLD_SIGSUSPEND3

	select OLD_SIGACTION

	help

	  The ARM series is a line of low-power-consumption RISC chip designs

	  licensed by ARM Ltd and targeted at embedded applications and

arch/arm/include/asm/signal.h

+0 −7
Original line number Diff line number Diff line
@@ -16,13 +16,6 @@ typedef struct { 
	unsigned long sig[_NSIG_WORDS];

} sigset_t;



struct old_sigaction {

	__sighandler_t sa_handler;

	old_sigset_t sa_mask;

	unsigned long sa_flags;

	__sigrestore_t sa_restorer;

};



#define __ARCH_HAS_SA_RESTORER



#include <asm/sigcontext.h>

arch/arm/kernel/signal.c

+0 −32
Original line number Diff line number Diff line
@@ -45,38 +45,6 @@ const unsigned long sigreturn_codes[7] = { 
	MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN,

};



asmlinkage int 

sys_sigaction(int sig, const struct old_sigaction __user *act,

	      struct old_sigaction __user *oact)

{

	struct k_sigaction new_ka, old_ka;

	int ret;



	if (act) {

		old_sigset_t mask;

		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||

		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||

		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||

		    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||

		    __get_user(mask, &act->sa_mask))

			return -EFAULT;

		siginitset(&new_ka.sa.sa_mask, mask);

	}



	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);



	if (!ret && oact) {

		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||

		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||

		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||

		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||

		    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))

			return -EFAULT;

	}



	return ret;

}



#ifdef CONFIG_CRUNCH

static int preserve_crunch_context(struct crunch_sigframe __user *frame)

{