From: Shenghou Ma <minux@golang.org>
Date: Wed, 13 Aug 2014 03:57:42 +0000 (-0400)
Subject: [dev.power64] runtime: fix morestack
X-Git-Tag: go1.5beta1~2684^2~25^2~53
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=268d90119947d88063964211c0f3b122fffc96a3;p=gostls13.git

[dev.power64] runtime: fix morestack

Must not save LR.

LGTM=rsc
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/129040044
---

diff --git a/src/pkg/runtime/asm_power64x.s b/src/pkg/runtime/asm_power64x.s
index 5c67e19485..2fbaf5a53e 100644
--- a/src/pkg/runtime/asm_power64x.s
+++ b/src/pkg/runtime/asm_power64x.s
@@ -208,7 +208,7 @@ onm:
 // the top of a stack (for example, morestack calling newstack
 // calling the scheduler calling newm calling gc), so we must
 // record an argument size. For that purpose, it has no arguments.
-TEXT runtime·morestack(SB),NOSPLIT,$0-0
+TEXT runtime·morestack(SB),NOSPLIT,$-8-0
 	// Cannot grow scheduler stack (m->g0).
 	MOVD	g_m(g), R7
 	MOVD	m_g0(R7), R8
@@ -244,7 +244,7 @@ TEXT runtime·morestack(SB),NOSPLIT,$0-0
 	// is still in this function, and not the beginning of the next.
 	UNDEF
 
-TEXT runtime·morestack_noctxt(SB),NOSPLIT,$0-0
+TEXT runtime·morestack_noctxt(SB),NOSPLIT,$-8-0
 	MOVD	R0, R11
 	BR	runtime·morestack(SB)
 
@@ -306,7 +306,7 @@ TEXT runtime·newstackcall(SB), NOSPLIT, $-8-20
 	BR	(CTR)
 
 // Note: can't just "BR runtime·NAME(SB)" - bad inlining results.
-TEXT reflect·call(SB), NOSPLIT, $0-24
+TEXT reflect·call(SB), NOSPLIT, $-8-24
 	MOVW argsize+16(FP), R3
 	DISPATCH(call16, 16)
 	DISPATCH(call32, 32)