mirror of
https://github.com/rwinkhart/sys.git
synced 2026-09-02 07:07:33 -04:00
Rob Pike
20acc5cf31
This CL copies to each package of go.sys the files from syscall it will need.
Different directories have different files, but these:
mkall.sh
str.go
syscall.go
mksyscall.pl
race.go
race0.go
syscall_test.go
are copied to all three.
No changes yet, these are just copies. They are not ready to use yet:
package names are wrong, for starters. But this clean copy will make
it easier to follow the changes as the packages are enabled.
LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/126960043
44 lines
922 B
ArmAsm
44 lines
922 B
ArmAsm
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "../../cmd/ld/textflag.h"
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#include "../runtime/syscall_nacl.h"
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//
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// System call support for ARM, Native Client
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//
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#define NACL_SYSCALL(code) \
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MOVW $(0x10000 + ((code)<<5)), R8; BL (R8)
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#define NACL_SYSJMP(code) \
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MOVW $(0x10000 + ((code)<<5)), R8; B (R8)
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TEXT syscall·Syscall(SB),NOSPLIT,$0-28
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BL runtime·entersyscall(SB)
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MOVW trap+0(FP), R8
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MOVW a1+4(FP), R0
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MOVW a2+8(FP), R1
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MOVW a3+12(FP), R2
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// more args would use R3, and then stack.
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MOVW $0x10000, R7
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ADD R8<<5, R7
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BL (R7)
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CMP $0, R0
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BGE ok
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MOVW $-1, R1
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MOVW R1, r1+16(FP)
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MOVW R1, r2+20(FP)
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RSB $0, R0
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MOVW R0, err+24(FP)
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BL runtime·exitsyscall(SB)
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RET
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ok:
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MOVW R0, r1+16(FP)
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MOVW R1, r2+20(FP)
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MOVW $0, R2
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MOVW R2, err+24(FP)
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BL runtime·exitsyscall(SB)
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RET
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