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Commit 804c2415 authored by Bodo Stroesser's avatar Bodo Stroesser Committed by Linus Torvalds
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[PATCH] uml: S390 preparation, save an extra register 



s390 tt-mode needs to save not only syscall number, but an further register
also.

Signed-off-by: default avatarBodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: default avatarJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 82c1c11b

arch/um/kernel/tt/syscall_user.c

+4 −0
Original line number Diff line number Diff line
@@ -63,6 +63,10 @@ void do_syscall(void *task, int pid, int local_using_sysemu) 


	UPT_SYSCALL_NR(TASK_REGS(task)) = PT_SYSCALL_NR(proc_regs);



#ifdef UPT_ORIGGPR2

        UPT_ORIGGPR2(TASK_REGS(task)) = REGS_ORIGGPR2(proc_regs);

#endif



	if(((unsigned long *) PT_IP(proc_regs) >= &_stext) &&

	   ((unsigned long *) PT_IP(proc_regs) <= &_etext))

		tracer_panic("I'm tracing myself and I can't get out");