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go/misc/cgo/test/issue9400/asm_mipsx.s

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misc/cgo/test: add mipsx test case for #9400 Change-Id: I7d0bc5093943b0744d865e91517ff6292f3b2f89 Reviewed-on: https://go-review.googlesource.com/34510 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-15 09:22:30 -07:00
// 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
all: use more precise build tags 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>
2020-11-12 15:42:58 -07:00
// +build gc
misc/cgo/test: add mipsx test case for #9400 Change-Id: I7d0bc5093943b0744d865e91517ff6292f3b2f89 Reviewed-on: https://go-review.googlesource.com/34510 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-15 09:22:30 -07:00
#include "textflag.h"
runtime: use NOFRAME on mips and mips64 This replaces frame size -4/-8 with the NOFRAME flag in mips and mips64 assembly. This was automated with: sed -i -e 's/\(^TEXT.*[A-Z]\),\( *\)\$-[84]/\1|NOFRAME,\2$0/' $(find -name '*_mips*.s') Plus a manual fix to mkduff.go. The go binary is identical on both architectures before and after this change. Change-Id: I0310384d1a584118c41d1cd3a042bb8ea7227efb Reviewed-on: https://go-review.googlesource.com/92044 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-25 10:15:23 -07:00
TEXT ·RewindAndSetgid(SB),NOSPLIT|NOFRAME,$0-0
misc/cgo/test: add mipsx test case for #9400 Change-Id: I7d0bc5093943b0744d865e91517ff6292f3b2f89 Reviewed-on: https://go-review.googlesource.com/34510 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-15 09:22:30 -07:00
// 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
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