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runtime nits: variable name and comments

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R=r
DELTA=10  (0 added, 0 deleted, 10 changed)
OCL=27374
CL=27388
This commit is contained in:
Russ Cox 2009-04-13 15:22:36 -07:00
parent e97121a187
commit a9996d0f89
1 changed files with 10 additions and 10 deletions
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20
src/runtime/proc.c
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@ -553,18 +553,18 @@ sys·exitsyscall(void)
* stack frame size <= StackSmall:
* CMPQ guard, SP
* JHI 3(PC)
* MOVQ m->morearg, $((frame << 32) | argsize)
* MOVQ m->morearg, $(argsize << 32)
* CALL sys.morestack(SB)
*
* stack frame size > StackSmall but < StackBig
* LEAQ (frame-StackSmall)(SP), R0
* CMPQ guard, R0
* JHI 3(PC)
* MOVQ m->morearg, $((frame << 32) | argsize)
* MOVQ m->morearg, $(argsize << 32)
* CALL sys.morestack(SB)
*
* stack frame size >= StackBig:
* MOVQ m->morearg, $((frame << 32) | argsize)
* MOVQ m->morearg, $((argsize << 32) | frame)
* CALL sys.morestack(SB)
*
* the bottom StackGuard - StackSmall bytes are important:
@ -605,7 +605,7 @@ void
oldstack(void)
{
Stktop *top;
uint32 siz2;
uint32 args;
byte *sp;
uint64 oldsp, oldpc, oldbase, oldguard;
@ -613,13 +613,13 @@ oldstack(void)
top = (Stktop*)m->curg->stackbase;
siz2 = (top->magic>>32) & 0xffffLL;
args = (top->magic>>32) & 0xffffLL;
sp = (byte*)top;
if(siz2 > 0) {
siz2 = (siz2+7) & ~7;
sp -= siz2;
mcpy(top->oldsp+16, sp, siz2);
if(args > 0) {
args = (args+7) & ~7;
sp -= args;
mcpy(top->oldsp+2*sizeof(uintptr), sp, args);
}
oldsp = (uint64)top->oldsp + 8;
@ -663,7 +663,7 @@ newstack(void)
frame = m->morearg & 0xffffffffLL;
args = (m->morearg>>32) & 0xffffLL;
// printf("newstack frame=%d args=%d moresp=%p\n", frame, args, m->moresp);
// printf("newstack frame=%d args=%d moresp=%p morepc=%p\n", frame, args, m->moresp, *(uintptr*)m->moresp);
if(frame < StackBig)
frame = StackBig;