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Commit 51a6b0c5 authored by Bodo Stroesser's avatar Bodo Stroesser Committed by Linus Torvalds
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[PATCH] uml: s390 preparation, sighandler interface abstraction 



s390 passes parameters in registers.  So the only safe way to find out the
address of signal context, error-address and error-type (trap_no), which are
passed to signal handlers as parameters, is to declare these parameters.

So I inserted an subarch-specific macro which holds the declaration of
parameters for signal handlers.

Signed-off-by: default avatarBodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: default avatarJeff Dike <jdike@addtoit.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 5fd861b6

arch/um/include/sysdep-i386/signal.h

+2 −0
Original line number Diff line number Diff line
@@ -8,6 +8,8 @@ 


#include <signal.h>



#define ARCH_SIGHDLR_PARAM int sig



#define ARCH_GET_SIGCONTEXT(sc, sig) \

	do sc = (struct sigcontext *) (&sig + 1); while(0)

arch/um/include/sysdep-x86_64/signal.h

+2 −0
Original line number Diff line number Diff line
@@ -6,6 +6,8 @@ 
#ifndef __X86_64_SIGNAL_H_

#define __X86_64_SIGNAL_H_



#define ARCH_SIGHDLR_PARAM int sig



#define ARCH_GET_SIGCONTEXT(sc, sig_addr) \

	do { \

		struct ucontext *__uc; \

arch/um/os-Linux/signal.c

+2 −2
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ 
#include "mode.h"

#include "sysdep/signal.h"



void sig_handler(int sig)

void sig_handler(ARCH_SIGHDLR_PARAM)

{

	struct sigcontext *sc;
@@ -19,7 +19,7 @@ void sig_handler(int sig) 


extern int timer_irq_inited;



void alarm_handler(int sig)

void alarm_handler(ARCH_SIGHDLR_PARAM)

{

	struct sigcontext *sc;