mirror of
https://github.com/golang/go
synced 2024-11-25 02:37:59 -07:00
a671e33c6d
s/!gccgo/gc/ in files which use gc-syntax assembly. Change-Id: Ifdadb62edd1210ebc70e7cd415648b752afaf067 Reviewed-on: https://go-review.googlesource.com/c/go/+/269957 Reviewed-by: Than McIntosh <thanm@google.com> Trust: David Chase <drchase@google.com> Trust: Matthew Dempsky <mdempsky@google.com>
32 lines
664 B
ArmAsm
32 lines
664 B
ArmAsm
// Copyright 2016 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build mips mipsle
|
|
// +build gc
|
|
|
|
#include "textflag.h"
|
|
|
|
TEXT ·RewindAndSetgid(SB),NOSPLIT|NOFRAME,$0-0
|
|
// Rewind stack pointer so anything that happens on the stack
|
|
// will clobber the test pattern created by the caller
|
|
ADDU $(1024*8), R29
|
|
|
|
// Ask signaller to setgid
|
|
MOVW $1, R1
|
|
SYNC
|
|
MOVW R1, ·Baton(SB)
|
|
SYNC
|
|
|
|
// Wait for setgid completion
|
|
loop:
|
|
SYNC
|
|
MOVW ·Baton(SB), R1
|
|
OR R2, R2, R2 // hint that we're in a spin loop
|
|
BNE R1, loop
|
|
SYNC
|
|
|
|
// Restore stack
|
|
ADDU $(-1024*8), R29
|
|
RET
|