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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:23:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:23:18 +0000
commit43a123c1ae6613b3efeed291fa552ecd909d3acf (patch)
treefd92518b7024bc74031f78a1cf9e454b65e73665 /src/syscall/asm_linux_arm64.s
parentInitial commit. (diff)
downloadgolang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.tar.xz
golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.zip
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/syscall/asm_linux_arm64.s')
-rw-r--r--src/syscall/asm_linux_arm64.s41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/syscall/asm_linux_arm64.s b/src/syscall/asm_linux_arm64.s
new file mode 100644
index 0000000..7fa789a
--- /dev/null
+++ b/src/syscall/asm_linux_arm64.s
@@ -0,0 +1,41 @@
+// Copyright 2015 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.
+
+#include "textflag.h"
+
+// func rawVforkSyscall(trap, a1, a2 uintptr) (r1, err uintptr)
+TEXT ·rawVforkSyscall(SB),NOSPLIT,$0-40
+ MOVD a1+8(FP), R0
+ MOVD a2+16(FP), R1
+ MOVD $0, R2
+ MOVD $0, R3
+ MOVD $0, R4
+ MOVD $0, R5
+ MOVD trap+0(FP), R8 // syscall entry
+ SVC
+ CMN $4095, R0
+ BCC ok
+ MOVD $-1, R4
+ MOVD R4, r1+24(FP) // r1
+ NEG R0, R0
+ MOVD R0, err+32(FP) // errno
+ RET
+ok:
+ MOVD R0, r1+24(FP) // r1
+ MOVD ZR, err+32(FP) // errno
+ RET
+
+// func rawSyscallNoError(trap uintptr, a1, a2, a3 uintptr) (r1, r2 uintptr);
+TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
+ MOVD a1+8(FP), R0
+ MOVD a2+16(FP), R1
+ MOVD a3+24(FP), R2
+ MOVD $0, R3
+ MOVD $0, R4
+ MOVD $0, R5
+ MOVD trap+0(FP), R8 // syscall entry
+ SVC
+ MOVD R0, r1+32(FP)
+ MOVD R1, r2+40(FP)
+ RET