1 // Copyright 2009 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4 5 //go:build gc
6 7 #include "textflag.h"
8 9 //
10 // System calls for 386, Linux
11 //
12 13 // See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
14 // instead of the glibc-specific "CALL 0x10(GS)".
15 #define INVOKE_SYSCALL INT $0x80
16 17 // Just jump to package syscall's implementation for all these functions.
18 // The runtime may know about them.
19 20 TEXT ·Syscall(SB),NOSPLIT,$0-28
21 JMP syscall·Syscall(SB)
22 23 TEXT ·Syscall6(SB),NOSPLIT,$0-40
24 JMP syscall·Syscall6(SB)
25 26 TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
27 CALL runtime·entersyscall(SB)
28 MOVL trap+0(FP), AX // syscall entry
29 MOVL a1+4(FP), BX
30 MOVL a2+8(FP), CX
31 MOVL a3+12(FP), DX
32 MOVL $0, SI
33 MOVL $0, DI
34 INVOKE_SYSCALL
35 MOVL AX, r1+16(FP)
36 MOVL DX, r2+20(FP)
37 CALL runtime·exitsyscall(SB)
38 RET
39 40 TEXT ·RawSyscall(SB),NOSPLIT,$0-28
41 JMP syscall·RawSyscall(SB)
42 43 TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
44 JMP syscall·RawSyscall6(SB)
45 46 TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
47 MOVL trap+0(FP), AX // syscall entry
48 MOVL a1+4(FP), BX
49 MOVL a2+8(FP), CX
50 MOVL a3+12(FP), DX
51 MOVL $0, SI
52 MOVL $0, DI
53 INVOKE_SYSCALL
54 MOVL AX, r1+16(FP)
55 MOVL DX, r2+20(FP)
56 RET
57 58 TEXT ·socketcall(SB),NOSPLIT,$0-36
59 JMP syscall·socketcall(SB)
60 61 TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
62 JMP syscall·rawsocketcall(SB)
63 64 TEXT ·seek(SB),NOSPLIT,$0-28
65 JMP syscall·seek(SB)
66