Mercurial > hg > CbC > CbC_gcc
comparison libgo/misc/cgo/test/issue9400/asm_mips64x.s @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 // Copyright 2016 The Go Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style | |
| 3 // license that can be found in the LICENSE file. | |
| 4 | |
| 5 // +build mips64 mips64le | |
| 6 // +build !gccgo | |
| 7 | |
| 8 #include "textflag.h" | |
| 9 | |
| 10 #define SYNC WORD $0xf | |
| 11 | |
| 12 TEXT ·RewindAndSetgid(SB),NOSPLIT|NOFRAME,$0-0 | |
| 13 // Rewind stack pointer so anything that happens on the stack | |
| 14 // will clobber the test pattern created by the caller | |
| 15 ADDV $(1024*8), R29 | |
| 16 | |
| 17 // Ask signaller to setgid | |
| 18 MOVW $1, R1 | |
| 19 SYNC | |
| 20 MOVW R1, ·Baton(SB) | |
| 21 SYNC | |
| 22 | |
| 23 // Wait for setgid completion | |
| 24 loop: | |
| 25 SYNC | |
| 26 MOVW ·Baton(SB), R1 | |
| 27 OR R2, R2, R2 // hint that we're in a spin loop | |
| 28 BNE R1, loop | |
| 29 SYNC | |
| 30 | |
| 31 // Restore stack | |
| 32 ADDV $(-1024*8), R29 | |
| 33 RET |