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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:18:25 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:18:25 +0000 |
| commit | 109be507377fe7f6e8819ac94041d3fdcdf6fd2f (patch) | |
| tree | 2806a689f8fab4a2ec9fc949830ef270a91d667d /misc/cgo/test/testdata/issue9400/asm_arm.s | |
| parent | Initial commit. (diff) | |
| download | golang-1.19-upstream.tar.xz golang-1.19-upstream.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_arm.s')
| -rw-r--r-- | misc/cgo/test/testdata/issue9400/asm_arm.s | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/misc/cgo/test/testdata/issue9400/asm_arm.s b/misc/cgo/test/testdata/issue9400/asm_arm.s new file mode 100644 index 0000000..cc92856 --- /dev/null +++ b/misc/cgo/test/testdata/issue9400/asm_arm.s @@ -0,0 +1,39 @@ +// 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 gc + +#include "textflag.h" + +TEXT cas<>(SB),NOSPLIT,$0 + MOVW $0xffff0fc0, R15 // R15 is PC + +TEXT ·RewindAndSetgid(SB),NOSPLIT|NOFRAME,$0-0 + // Save link register + MOVW R14, R4 + + // Rewind stack pointer so anything that happens on the stack + // will clobber the test pattern created by the caller + ADD $(1024 * 8), R13 + + // Ask signaller to setgid + MOVW $·Baton(SB), R2 +storeloop: + MOVW 0(R2), R0 + MOVW $1, R1 + BL cas<>(SB) + BCC storeloop + + // Wait for setgid completion +loop: + MOVW $0, R0 + MOVW $0, R1 + BL cas<>(SB) + BCC loop + + // Restore stack + SUB $(1024 * 8), R13 + + MOVW R4, R14 + RET |