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diff --git a/platform/switch_ppc64_linux.h b/platform/switch_ppc64_linux.h
index 88e6847..feb60d4 100644
--- a/platform/switch_ppc64_linux.h
+++ b/platform/switch_ppc64_linux.h
@@ -66,7 +66,6 @@
#define REGS_TO_SAVE "r14", "r15", "r16", "r17", "r18", "r19", "r20", \
"r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", \
- "r31", \
"fr14", "fr15", "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", \
"fr22", "fr23", "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", \
"fr30", "fr31", \
@@ -80,21 +79,25 @@ slp_switch(void)
register long *stackref, stsizediff;
void * toc;
void * r30;
+ void * r31;
__asm__ volatile ("" : : : REGS_TO_SAVE);
__asm__ volatile ("std 2, %0" : "=m" (toc));
__asm__ volatile ("std 30, %0" : "=m" (r30));
+ __asm__ volatile ("std 31, %0" : "=m" (r31));
__asm__ ("mr %0, 1" : "=r" (stackref) : );
{
SLP_SAVE_STATE(stackref, stsizediff);
__asm__ volatile (
"mr 11, %0\n"
"add 1, 1, 11\n"
+ "add 31, 31, 11\n"
: /* no outputs */
: "r" (stsizediff)
: "11"
);
SLP_RESTORE_STATE();
}
+ __asm__ volatile ("ld 31, %0" : : "m" (r31));
__asm__ volatile ("ld 30, %0" : : "m" (r30));
__asm__ volatile ("ld 2, %0" : : "m" (toc));
__asm__ volatile ("" : : : REGS_TO_SAVE);
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