diff options
Diffstat (limited to 'src/pkg/syscall/asm_linux_386.s')
| -rw-r--r-- | src/pkg/syscall/asm_linux_386.s | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/src/pkg/syscall/asm_linux_386.s b/src/pkg/syscall/asm_linux_386.s deleted file mode 100644 index 30b22073d..000000000 --- a/src/pkg/syscall/asm_linux_386.s +++ /dev/null @@ -1,186 +0,0 @@ -// Copyright 2009 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. - -// TODO(rsc): Rewrite all nn(SP) references into name+(nn-8)(FP) -// so that go vet can check that they are correct. - -#include "../../cmd/ld/textflag.h" - -// -// System calls for 386, Linux -// - -// func Syscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr); -// Trap # in AX, args in BX CX DX SI DI, return in AX - -TEXT ·Syscall(SB),NOSPLIT,$0-28 - CALL runtime·entersyscall(SB) - MOVL 4(SP), AX // syscall entry - MOVL 8(SP), BX - MOVL 12(SP), CX - MOVL 16(SP), DX - MOVL $0, SI - MOVL $0, DI - CALL *runtime·_vdso(SB) - CMPL AX, $0xfffff001 - JLS ok - MOVL $-1, 20(SP) // r1 - MOVL $0, 24(SP) // r2 - NEGL AX - MOVL AX, 28(SP) // errno - CALL runtime·exitsyscall(SB) - RET -ok: - MOVL AX, 20(SP) // r1 - MOVL DX, 24(SP) // r2 - MOVL $0, 28(SP) // errno - CALL runtime·exitsyscall(SB) - RET - -// func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr); -TEXT ·Syscall6(SB),NOSPLIT,$0-40 - CALL runtime·entersyscall(SB) - MOVL 4(SP), AX // syscall entry - MOVL 8(SP), BX - MOVL 12(SP), CX - MOVL 16(SP), DX - MOVL 20(SP), SI - MOVL 24(SP), DI - MOVL 28(SP), BP - CALL *runtime·_vdso(SB) - CMPL AX, $0xfffff001 - JLS ok6 - MOVL $-1, 32(SP) // r1 - MOVL $0, 36(SP) // r2 - NEGL AX - MOVL AX, 40(SP) // errno - CALL runtime·exitsyscall(SB) - RET -ok6: - MOVL AX, 32(SP) // r1 - MOVL DX, 36(SP) // r2 - MOVL $0, 40(SP) // errno - CALL runtime·exitsyscall(SB) - RET - -// func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr); -TEXT ·RawSyscall(SB),NOSPLIT,$0-28 - MOVL 4(SP), AX // syscall entry - MOVL 8(SP), BX - MOVL 12(SP), CX - MOVL 16(SP), DX - MOVL $0, SI - MOVL $0, DI - CALL *runtime·_vdso(SB) - CMPL AX, $0xfffff001 - JLS ok1 - MOVL $-1, 20(SP) // r1 - MOVL $0, 24(SP) // r2 - NEGL AX - MOVL AX, 28(SP) // errno - RET -ok1: - MOVL AX, 20(SP) // r1 - MOVL DX, 24(SP) // r2 - MOVL $0, 28(SP) // errno - RET - -// func RawSyscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr); -TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 - MOVL 4(SP), AX // syscall entry - MOVL 8(SP), BX - MOVL 12(SP), CX - MOVL 16(SP), DX - MOVL 20(SP), SI - MOVL 24(SP), DI - MOVL 28(SP), BP - CALL *runtime·_vdso(SB) - CMPL AX, $0xfffff001 - JLS ok2 - MOVL $-1, 32(SP) // r1 - MOVL $0, 36(SP) // r2 - NEGL AX - MOVL AX, 40(SP) // errno - RET -ok2: - MOVL AX, 32(SP) // r1 - MOVL DX, 36(SP) // r2 - MOVL $0, 40(SP) // errno - RET - -#define SYS_SOCKETCALL 102 /* from zsysnum_linux_386.go */ - -// func socketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (n int, errno int) -// Kernel interface gets call sub-number and pointer to a0. -TEXT ·socketcall(SB),NOSPLIT,$0-36 - CALL runtime·entersyscall(SB) - MOVL $SYS_SOCKETCALL, AX // syscall entry - MOVL 4(SP), BX // socket call number - LEAL 8(SP), CX // pointer to call arguments - MOVL $0, DX - MOVL $0, SI - MOVL $0, DI - CALL *runtime·_vdso(SB) - CMPL AX, $0xfffff001 - JLS oksock - MOVL $-1, 32(SP) // n - NEGL AX - MOVL AX, 36(SP) // errno - CALL runtime·exitsyscall(SB) - RET -oksock: - MOVL AX, 32(SP) // n - MOVL $0, 36(SP) // errno - CALL runtime·exitsyscall(SB) - RET - -// func rawsocketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (n int, errno int) -// Kernel interface gets call sub-number and pointer to a0. -TEXT ·rawsocketcall(SB),NOSPLIT,$0-36 - MOVL $SYS_SOCKETCALL, AX // syscall entry - MOVL 4(SP), BX // socket call number - LEAL 8(SP), CX // pointer to call arguments - MOVL $0, DX - MOVL $0, SI - MOVL $0, DI - CALL *runtime·_vdso(SB) - CMPL AX, $0xfffff001 - JLS oksock1 - MOVL $-1, 32(SP) // n - NEGL AX - MOVL AX, 36(SP) // errno - RET -oksock1: - MOVL AX, 32(SP) // n - MOVL $0, 36(SP) // errno - RET - -#define SYS__LLSEEK 140 /* from zsysnum_linux_386.go */ -// func Seek(fd int, offset int64, whence int) (newoffset int64, errno int) -// Implemented in assembly to avoid allocation when -// taking the address of the return value newoffset. -// Underlying system call is -// llseek(int fd, int offhi, int offlo, int64 *result, int whence) -TEXT ·seek(SB),NOSPLIT,$0-28 - CALL runtime·entersyscall(SB) - MOVL $SYS__LLSEEK, AX // syscall entry - MOVL 4(SP), BX // fd - MOVL 12(SP), CX // offset-high - MOVL 8(SP), DX // offset-low - LEAL 20(SP), SI // result pointer - MOVL 16(SP), DI // whence - CALL *runtime·_vdso(SB) - CMPL AX, $0xfffff001 - JLS okseek - MOVL $-1, 20(SP) // newoffset low - MOVL $-1, 24(SP) // newoffset high - NEGL AX - MOVL AX, 28(SP) // errno - CALL runtime·exitsyscall(SB) - RET -okseek: - // system call filled in newoffset already - MOVL $0, 28(SP) // errno - CALL runtime·exitsyscall(SB) - RET |