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annotate libgo/misc/cgo/test/issue9400/asm_amd64x.s @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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111
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1 // Copyright 2014 The Go Authors. All rights reserved.
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2 // Use of this source code is governed by a BSD-style
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3 // license that can be found in the LICENSE file.
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4
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5 // +build amd64 amd64p32
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6 // +build !gccgo
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7
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8 #include "textflag.h"
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9
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10 TEXT ·RewindAndSetgid(SB),NOSPLIT,$0-0
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11 // Rewind stack pointer so anything that happens on the stack
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12 // will clobber the test pattern created by the caller
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13 ADDQ $(1024 * 8), SP
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14
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15 // Ask signaller to setgid
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16 MOVL $1, ·Baton(SB)
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17
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18 // Wait for setgid completion
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19 loop:
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20 PAUSE
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21 MOVL ·Baton(SB), AX
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22 CMPL AX, $0
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23 JNE loop
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24
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25 // Restore stack
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26 SUBQ $(1024 * 8), SP
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27 RET