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runtime: fix netbsd/arm64 assembly 

Fix various bugs in the netbsd/arm64 runtime assembly.

Updates #30824.

Change-Id: I5ca10926ab663a8ff4df9973530e645e2469c1aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/177120
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Joel Sing 2019-05-15 04:19:26 +10:00
parent 9be2d46422
commit 37133b5d63
1 changed files with 9 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/runtime/sys_netbsd_arm64.s
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@ -101,16 +101,14 @@ TEXT runtime·lwp_self(SB),NOSPLIT,$0
// Exit the entire program (like C exit)
TEXT runtime·exit(SB),NOSPLIT,$-8
MOVD code+0(FP), R0 // arg 1 - exit status
MOVW code+0(FP), R0 // arg 1 - exit status
SVC $SYS_exit
MOVD $0, R0 // If we're still running,
MOVD R0, (R0) // crash
// XXX the use of R1 here does not make sense.
// Does it not matter?
// func exitThread(wait *uint32)
TEXT runtime·exitThread(SB),NOSPLIT,$0-8
MOVW wait+0(FP), R0
MOVD wait+0(FP), R0
// We're done using the stack.
MOVW $0, R1
STLRW R1, (R0)
@ -156,11 +154,11 @@ TEXT runtime·write(SB),NOSPLIT,$-8
BCC ok
MOVW $-1, R0
ok:
MOVW R1, ret+24(FP)
MOVW R0, ret+24(FP)
RET
TEXT runtime·usleep(SB),NOSPLIT,$24-4
MOVW usec+0(FP), R3
MOVWU usec+0(FP), R3
MOVD R3, R5
MOVW $1000000, R4
UDIV R4, R3
@ -171,7 +169,7 @@ TEXT runtime·usleep(SB),NOSPLIT,$24-4
MUL R4, R5
MOVD R5, 16(RSP) // nsec
MOVD RSP, R0 // arg 1 - rqtp
MOVD $8(RSP), R0 // arg 1 - rqtp
MOVD $0, R1 // arg 2 - rmtp
SVC $SYS___nanosleep50
RET
@ -200,11 +198,11 @@ TEXT runtime·setitimer(SB),NOSPLIT,$-8
// func walltime() (sec int64, nsec int32)
TEXT runtime·walltime(SB), NOSPLIT, $32
MOVW $CLOCK_REALTIME, R0 // arg 1 - clock_id
MOVW 8(RSP), R1 // arg 2 - tp
MOVD $8(RSP), R1 // arg 2 - tp
SVC $SYS___clock_gettime50
MOVD 8(RSP), R0 // sec
MOVW 16(RSP), R1 // nsec
MOVD 16(RSP), R1 // nsec
// sec is in R0, nsec in R1
MOVD R0, sec+0(FP)
@ -218,7 +216,7 @@ TEXT runtime·nanotime(SB), NOSPLIT, $32
MOVD $8(RSP), R1 // arg 2 - tp
SVC $SYS___clock_gettime50
MOVD 8(RSP), R0 // sec
MOVW 16(RSP), R2 // nsec
MOVD 16(RSP), R2 // nsec
// sec is in R0, nsec in R2
// return nsec in R2
@ -333,7 +331,7 @@ ok:
MOVD R0, ret+24(FP)
RET
TEXT runtime·sigaltstack(SB),NOSPLIT,$-8
TEXT runtime·sigaltstack(SB),NOSPLIT,$0
MOVD new+0(FP), R0 // arg 1 - nss
MOVD old+8(FP), R1 // arg 2 - oss
SVC $SYS___sigaltstack14