asm_linux_386.s (1470B)
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)