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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:18:25 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:18:25 +0000
commit109be507377fe7f6e8819ac94041d3fdcdf6fd2f (patch)
tree2806a689f8fab4a2ec9fc949830ef270a91d667d /misc/cgo/test/testdata/issue9400/asm_mips64x.s
parentInitial commit. (diff)
downloadgolang-1.19-109be507377fe7f6e8819ac94041d3fdcdf6fd2f.tar.xz
golang-1.19-109be507377fe7f6e8819ac94041d3fdcdf6fd2f.zip
Adding upstream version 1.19.8.upstream/1.19.8upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'misc/cgo/test/testdata/issue9400/asm_mips64x.s')
-rw-r--r--misc/cgo/test/testdata/issue9400/asm_mips64x.s33
1 files changed, 33 insertions, 0 deletions
diff --git a/misc/cgo/test/testdata/issue9400/asm_mips64x.s b/misc/cgo/test/testdata/issue9400/asm_mips64x.s
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+++ b/misc/cgo/test/testdata/issue9400/asm_mips64x.s
@@ -0,0 +1,33 @@
+// 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 mips64 mips64le
+// +build gc
+
+#include "textflag.h"
+
+#define SYNC WORD $0xf
+
+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
+ ADDV $(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
+ ADDV $(-1024*8), R29
+ RET