[uml-devel] [PATCH 5/12] UML - S390 preparation, save an extra register

[uml-devel] [PATCH 5/12] UML - S390 preparation, save an extra register

[Jeff Dike]

From: Bodo Stroesser <bstroesser@fujitsu-siemens.com>

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

Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>

Index: linux-2.6.12-rc3-mm/arch/um/kernel/tt/syscall_user.c
===================================================================
--- linux-2.6.12-rc3-mm.orig/arch/um/kernel/tt/syscall_user.c	2005-05-06 14:42:20.000000000 -0400
+++ linux-2.6.12-rc3-mm/arch/um/kernel/tt/syscall_user.c	2005-05-06 14:49:52.000000000 -0400
@@ -63,6 +63,10 @@
 
 	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");



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