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[dev.power64] runtime: fix morestack

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Must not save LR.

LGTM=rsc
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/129040044
This commit is contained in:
Shenghou Ma 2014-08-12 23:57:42 -04:00
parent 893f28ca16
commit 268d901199
1 changed files with 3 additions and 3 deletions
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6
src/pkg/runtime/asm_power64x.s
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@ -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)