[POWERPC] Make setjmp/longjmp code usable outside of xmon

This makes the setjmp/longjmp code used by xmon, generically available
to other code.  It also removes the requirement for debugger hooks to
be only called on 0x300 (data storage) exception.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 1 insertions, 66 deletions

diff --git a/arch/powerpc/xmon/setjmp.S b/arch/powerpc/xmon/setjmp.S
index 96a91f10e2ec..04c0b305ad4a 100644
--- a/arch/powerpc/xmon/setjmp.S
+++ b/arch/powerpc/xmon/setjmp.S
@@ -12,67 +12,6 @@
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
 
-_GLOBAL(xmon_setjmp)
-        mflr    r0
-        PPC_STL r0,0(r3)
-        PPC_STL r1,SZL(r3)
-        PPC_STL r2,2*SZL(r3)
-        mfcr    r0
-        PPC_STL r0,3*SZL(r3)
-        PPC_STL r13,4*SZL(r3)
-        PPC_STL r14,5*SZL(r3)
-        PPC_STL r15,6*SZL(r3)
-        PPC_STL r16,7*SZL(r3)
-        PPC_STL r17,8*SZL(r3)
-        PPC_STL r18,9*SZL(r3)
-        PPC_STL r19,10*SZL(r3)
-        PPC_STL r20,11*SZL(r3)
-        PPC_STL r21,12*SZL(r3)
-        PPC_STL r22,13*SZL(r3)
-        PPC_STL r23,14*SZL(r3)
-        PPC_STL r24,15*SZL(r3)
-        PPC_STL r25,16*SZL(r3)
-        PPC_STL r26,17*SZL(r3)
-        PPC_STL r27,18*SZL(r3)
-        PPC_STL r28,19*SZL(r3)
-        PPC_STL r29,20*SZL(r3)
-        PPC_STL r30,21*SZL(r3)
-        PPC_STL r31,22*SZL(r3)
-        li      r3,0
-        blr
-
-_GLOBAL(xmon_longjmp)
-        PPC_LCMPI r4,0
-        bne     1f
-        li      r4,1
-1:      PPC_LL  r13,4*SZL(r3)
-        PPC_LL  r14,5*SZL(r3)
-        PPC_LL  r15,6*SZL(r3)
-        PPC_LL  r16,7*SZL(r3)
-        PPC_LL  r17,8*SZL(r3)
-        PPC_LL  r18,9*SZL(r3)
-        PPC_LL  r19,10*SZL(r3)
-        PPC_LL  r20,11*SZL(r3)
-        PPC_LL  r21,12*SZL(r3)
-        PPC_LL  r22,13*SZL(r3)
-        PPC_LL  r23,14*SZL(r3)
-        PPC_LL  r24,15*SZL(r3)
-        PPC_LL  r25,16*SZL(r3)
-        PPC_LL  r26,17*SZL(r3)
-        PPC_LL  r27,18*SZL(r3)
-        PPC_LL  r28,19*SZL(r3)
-        PPC_LL  r29,20*SZL(r3)
-        PPC_LL  r30,21*SZL(r3)
-        PPC_LL  r31,22*SZL(r3)
-        PPC_LL  r0,3*SZL(r3)
-        mtcrf   0x38,r0
-        PPC_LL  r0,0(r3)
-        PPC_LL  r1,SZL(r3)
-        PPC_LL  r2,2*SZL(r3)
-        mtlr    r0
-        mr      r3,r4
-        blr
-
 /*
  * Grab the register values as they are now.
  * This won't do a particularily good job because we really
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 865e36751f21..a34172ddc468 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -40,6 +40,7 @@
 #include <asm/spu.h>
 #include <asm/spu_priv1.h>
 #include <asm/firmware.h>
+#include <asm/setjmp.h>
 
 #ifdef CONFIG_PPC64
 #include <asm/hvcall.h>
@@ -71,12 +72,9 @@ static unsigned long ncsum = 4096;
 static int termch;
 static char tmpstr[128];
 
-#define JMP_BUF_LEN     23
 static long bus_error_jmp[JMP_BUF_LEN];
 static int catch_memory_errors;
 static long *xmon_fault_jmp[NR_CPUS];
-#define setjmp xmon_setjmp
-#define longjmp xmon_longjmp
 
 /* Breakpoint stuff */
 struct bpt {
@@ -162,8 +160,6 @@ int xmon_no_auto_backtrace;
 extern void xmon_enter(void);
 extern void xmon_leave(void);
 
-extern long setjmp(long *);
-extern void longjmp(long *, long);
 extern void xmon_save_regs(struct pt_regs *);
 
 #ifdef CONFIG_PPC64