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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_amd64x.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_amd64x.s')
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1 files changed, 27 insertions, 0 deletions
diff --git a/misc/cgo/test/testdata/issue9400/asm_amd64x.s b/misc/cgo/test/testdata/issue9400/asm_amd64x.s
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@@ -0,0 +1,27 @@
+// Copyright 2014 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 amd64 amd64p32
+// +build gc
+
+#include "textflag.h"
+
+TEXT ·RewindAndSetgid(SB),NOSPLIT,$0-0
+ // Rewind stack pointer so anything that happens on the stack
+ // will clobber the test pattern created by the caller
+ ADDQ $(1024 * 8), SP
+
+ // Ask signaller to setgid
+ MOVL $1, ·Baton(SB)
+
+ // Wait for setgid completion
+loop:
+ PAUSE
+ MOVL ·Baton(SB), AX
+ CMPL AX, $0
+ JNE loop
+
+ // Restore stack
+ SUBQ $(1024 * 8), SP
+ RET