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runtime: runtime.usleep() bugfix on darwin/amd64 and linux/arm

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pkg/runtime/sys_darwin_amd64.s: fixes syscall select nr
pkg/runtime/sys_linux_arm.s: uses newselect instead of the now unimplemented
        (old) select, also fixes the wrong div/mod statements in runtime.usleep.
Fixes #2633

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/5504096
This commit is contained in:
Shenghou Ma 2012-01-10 20:48:02 -08:00 committed by Russ Cox
parent 5cf803f438
commit 1250f94f93
2 changed files with 6 additions and 6 deletions
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2
src/pkg/runtime/sys_darwin_amd64.s
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@ -175,7 +175,7 @@ TEXT runtime·usleep(SB),7,$16
MOVL $0, DX MOVL $0, DX
MOVL $0, R10 MOVL $0, R10
MOVQ SP, R8 MOVQ SP, R8
MOVL $(0x2000000+23), AX MOVL $(0x2000000+93), AX
SYSCALL SYSCALL
RET RET

10
src/pkg/runtime/sys_linux_arm.s
View File

@ -34,7 +34,7 @@
#define SYS_gettid (SYS_BASE + 224) #define SYS_gettid (SYS_BASE + 224)
#define SYS_tkill (SYS_BASE + 238) #define SYS_tkill (SYS_BASE + 238)
#define SYS_sched_yield (SYS_BASE + 158) #define SYS_sched_yield (SYS_BASE + 158)
#define SYS_select (SYS_BASE + 82) #define SYS_select (SYS_BASE + 142) // newselect
#define ARM_BASE (SYS_BASE + 0x0f0000) #define ARM_BASE (SYS_BASE + 0x0f0000)
#define SYS_ARM_cacheflush (ARM_BASE + 2) #define SYS_ARM_cacheflush (ARM_BASE + 2)
@ -313,10 +313,10 @@ TEXT runtime·usleep(SB),7,$12
MOVW usec+0(FP), R0 MOVW usec+0(FP), R0
MOVW R0, R1 MOVW R0, R1
MOVW $1000000, R2 MOVW $1000000, R2
DIV R1, R0 DIV R2, R0
MOD R2, R0 MOD R2, R1
MOVW R1, 4(SP) MOVW R0, 4(SP)
MOVW R2, 8(SP) MOVW R1, 8(SP)
MOVW $0, R0 MOVW $0, R0
MOVW $0, R1 MOVW $0, R1
MOVW $0, R2 MOVW $0, R2