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| author | Michael Stapelberg <stapelberg@debian.org> | 2014-06-19 09:22:53 +0200 |
|---|---|---|
| committer | Michael Stapelberg <stapelberg@debian.org> | 2014-06-19 09:22:53 +0200 |
| commit | 8a39ee361feb9bf46d728ff1ba4f07ca1d9610b1 (patch) | |
| tree | 4449f2036cccf162e8417cc5841a35815b3e7ac5 /src/pkg/syscall/asm_nacl_386.s | |
| parent | c8bf49ef8a92e2337b69c14b9b88396efe498600 (diff) | |
| download | golang-8a39ee361feb9bf46d728ff1ba4f07ca1d9610b1.tar.gz | |
Imported Upstream version 1.3upstream/1.3
Diffstat (limited to 'src/pkg/syscall/asm_nacl_386.s')
| -rw-r--r-- | src/pkg/syscall/asm_nacl_386.s | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/pkg/syscall/asm_nacl_386.s b/src/pkg/syscall/asm_nacl_386.s new file mode 100644 index 000000000..de7c3cc5d --- /dev/null +++ b/src/pkg/syscall/asm_nacl_386.s @@ -0,0 +1,43 @@ +// Copyright 2013 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 "../../cmd/ld/textflag.h" +#include "../runtime/syscall_nacl.h" + +// +// System call support for 386, Native Client +// + +#define NACL_SYSCALL(code) \ + MOVL $(0x10000 + ((code)<<5)), AX; CALL AX + +#define NACL_SYSJMP(code) \ + MOVL $(0x10000 + ((code)<<5)), AX; JMP AX + +TEXT syscall·Syscall(SB),NOSPLIT,$12-28 + CALL runtime·entersyscall(SB) + MOVL trap+0(FP), AX + MOVL a1+4(FP), BX + MOVL BX, 0(SP) + MOVL a2+8(FP), BX + MOVL BX, 4(SP) + MOVL a3+12(FP), BX + MOVL BX, 8(SP) + SHLL $5, AX + ADDL $0x10000, AX + CALL AX + CMPL AX, $0 + JGE ok + MOVL $-1, r1+16(FP) + MOVL $-1, r2+20(FP) + NEGL AX + MOVL AX, err+24(FP) + CALL runtime·exitsyscall(SB) + RET +ok: + MOVL AX, r1+16(FP) + MOVL DX, r2+20(FP) + MOVL $0, err+24(FP) + CALL runtime·exitsyscall(SB) + RET |