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Commit aec3c6a3 authored by Rob Pike's avatar Rob Pike
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go.sys/unix: just jump to syscall.Syscall etc. 

Don't re-implement these functions.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/124390043
parent ba5045e1
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Showing with 108 additions and 1779 deletions
unix/asm_darwin_386.s
View file @ aec3c6a3
......@@ -2,141 +2,26 @@
// 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 "textflag.h"
//
// System call support for 386, Darwin
//
// func Syscall(trap int32, a1, a2, a3 int32) (r1, r2, err int32);
// func Syscall6(trap int32, a1, a2, a3, a4, a5, a6 int32) (r1, r2, err int32);
// Trap # in AX, args on stack above caller pc.
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
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
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok6
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
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
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok9
MOVL $-1, 44(SP) // r1
MOVL $-1, 48(SP) // r2
MOVL AX, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
MOVL AX, 44(SP) // r1
MOVL DX, 48(SP) // r2
MOVL $0, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok1
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
MOVL AX, 28(SP) // errno
RET
ok1:
MOVL AX, 20(SP) // r1
MOVL DX, 24(SP) // r2
MOVL $0, 28(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok2
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
MOVL AX, 40(SP) // errno
RET
ok2:
MOVL AX, 32(SP) // r1
MOVL DX, 36(SP) // r2
MOVL $0, 40(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_darwin_amd64.s
View file @ aec3c6a3
......@@ -2,105 +2,23 @@
// 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 "textflag.h"
//
// System call support for AMD64, Darwin
//
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
// func Syscall6(trap int64, a1, a2, a3, a4, a5, a6 int64) (r1, r2, err int64);
// Trap # in AX, args in DI SI DX, return in AX DX
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
CALL runtime·entersyscall(SB)
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
ADDQ $0x2000000, AX
SYSCALL
JCC ok
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
CALL runtime·entersyscall(SB)
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
ADDQ $0x2000000, AX
SYSCALL
JCC ok6
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok6:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
ADDQ $0x2000000, AX
SYSCALL
JCC ok1
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
RET
ok1:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
ADDQ $0x2000000, AX
SYSCALL
JCC ok2
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
RET
ok2:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_dragonfly_386.s
View file @ aec3c6a3
......@@ -8,132 +8,20 @@
// System call support for 386, FreeBSD
//
// func Syscall(trap int32, a1, a2, a3 int32) (r1, r2, err int32);
// func Syscall6(trap int32, a1, a2, a3, a4, a5, a6 int32) (r1, r2, err int32);
// Trap # in AX, args on stack above caller pc.
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-32
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
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
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-44
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok6
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
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
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-56
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok9
MOVL $-1, 44(SP) // r1
MOVL $-1, 48(SP) // r2
MOVL AX, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
MOVL AX, 44(SP) // r1
MOVL DX, 48(SP) // r2
MOVL $0, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-32
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok1
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
MOVL AX, 28(SP) // errno
RET
ok1:
MOVL AX, 20(SP) // r1
MOVL DX, 24(SP) // r2
MOVL $0, 28(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-44
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok2
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
MOVL AX, 40(SP) // errno
RET
ok2:
MOVL AX, 32(SP) // r1
MOVL DX, 36(SP) // r2
MOVL $0, 40(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_dragonfly_amd64.s
View file @ aec3c6a3
......@@ -8,126 +8,20 @@
// System call support for AMD64, DragonFly
//
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
// func Syscall6(trap int64, a1, a2, a3, a4, a5, a6 int64) (r1, r2, err int64);
// func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64)
// Trap # in AX, args in DI SI DX, return in AX DX
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-64
CALL runtime·entersyscall(SB)
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-88
CALL runtime·entersyscall(SB)
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok6
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok6:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-112
CALL runtime·entersyscall(SB)
MOVQ 8(SP), AX
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
// shift around the last three arguments so they're at the
// top of the stack when the syscall is called.
MOVQ 64(SP), R11 // arg 7
MOVQ R11, 8(SP)
MOVQ 72(SP), R11 // arg 8
MOVQ R11, 16(SP)
MOVQ 80(SP), R11 // arg 9
MOVQ R11, 24(SP)
SYSCALL
JCC ok9
MOVQ $-1, 88(SP) // r1
MOVQ $0, 96(SP) // r2
MOVQ AX, 104(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
MOVQ AX, 88(SP) // r1
MOVQ DX, 96(SP) // r2
MOVQ $0, 104(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-64
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok1
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
RET
ok1:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-88
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok2
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
RET
ok2:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_freebsd_386.s
View file @ aec3c6a3
......@@ -2,141 +2,26 @@
// 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 "textflag.h"
//
// System call support for 386, FreeBSD
//
// func Syscall(trap int32, a1, a2, a3 int32) (r1, r2, err int32);
// func Syscall6(trap int32, a1, a2, a3, a4, a5, a6 int32) (r1, r2, err int32);
// Trap # in AX, args on stack above caller pc.
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
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
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok6
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
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
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok9
MOVL $-1, 44(SP) // r1
MOVL $-1, 48(SP) // r2
MOVL AX, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
MOVL AX, 44(SP) // r1
MOVL DX, 48(SP) // r2
MOVL $0, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok1
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
MOVL AX, 28(SP) // errno
RET
ok1:
MOVL AX, 20(SP) // r1
MOVL DX, 24(SP) // r2
MOVL $0, 28(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok2
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
MOVL AX, 40(SP) // errno
RET
ok2:
MOVL AX, 32(SP) // r1
MOVL DX, 36(SP) // r2
MOVL $0, 40(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_freebsd_amd64.s
View file @ aec3c6a3
......@@ -2,140 +2,26 @@
// 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 "textflag.h"
//
// System call support for AMD64, FreeBSD
//
// The SYSCALL variant for invoking system calls is broken in FreeBSD.
// See comment at top of ../runtime/sys_freebsd_amd64.c and
// golang.org/issue/6372.
#define SYSCALL MOVQ R10, CX; INT $0x80
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
// func Syscall6(trap int64, a1, a2, a3, a4, a5, a6 int64) (r1, r2, err int64);
// func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64)
// Trap # in AX, args in DI SI DX, return in AX DX
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
CALL runtime·entersyscall(SB)
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
CALL runtime·entersyscall(SB)
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok6
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok6:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
CALL runtime·entersyscall(SB)
MOVQ 8(SP), AX
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
// shift around the last three arguments so they're at the
// top of the stack when the syscall is called.
MOVQ 64(SP), R11 // arg 7
MOVQ R11, 8(SP)
MOVQ 72(SP), R11 // arg 8
MOVQ R11, 16(SP)
MOVQ 80(SP), R11 // arg 9
MOVQ R11, 24(SP)
SYSCALL
JCC ok9
MOVQ $-1, 88(SP) // r1
MOVQ $0, 96(SP) // r2
MOVQ AX, 104(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
MOVQ AX, 88(SP) // r1
MOVQ DX, 96(SP) // r2
MOVQ $0, 104(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok1
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
RET
ok1:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok2
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
RET
ok2:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_freebsd_arm.s
View file @ aec3c6a3
......@@ -8,122 +8,20 @@
// System call support for ARM, FreeBSD
//
// func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, errno uintptr);
// func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr);
// func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, errno uintptr)
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
BL runtime·entersyscall(SB)
MOVW 0(FP), R7 // syscall number
MOVW 4(FP), R0 // a1
MOVW 8(FP), R1 // a2
MOVW 12(FP), R2 // a3
SWI $0 // syscall
MOVW $0, R2
BCS error
MOVW R0, 16(FP) // r1
MOVW R1, 20(FP) // r2
MOVW R2, 24(FP) // errno
BL runtime·exitsyscall(SB)
RET
error:
MOVW $-1, R3
MOVW R3, 16(FP) // r1
MOVW R2, 20(FP) // r2
MOVW R0, 24(FP) // errno
BL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
BL runtime·entersyscall(SB)
MOVW 0(FP), R7 // syscall number
MOVW 4(FP), R0 // a1
MOVW 8(FP), R1 // a2
MOVW 12(FP), R2 // a3
MOVW 16(FP), R3 // a4
MOVW R13, R4
MOVW $20(FP), R13 // a5 to a6 are passed on stack
SWI $0 // syscall
MOVW R4, R13
MOVW $0, R2
BCS error6
MOVW R0, 28(FP) // r1
MOVW R1, 32(FP) // r2
MOVW R2, 36(FP) // errno
BL runtime·exitsyscall(SB)
RET
error6:
MOVW $-1, R3
MOVW R3, 28(FP) // r1
MOVW R2, 32(FP) // r2
MOVW R0, 36(FP) // errno
BL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
BL runtime·entersyscall(SB)
MOVW 0(FP), R7 // syscall number
MOVW 4(FP), R0 // a1
MOVW 8(FP), R1 // a2
MOVW 12(FP), R2 // a3
MOVW 16(FP), R3 // a4
MOVW R13, R4
MOVW $20(FP), R13 // a5 to a9 are passed on stack
SWI $0 // syscall
MOVW R4, R13
MOVW $0, R2
BCS error9
MOVW R0, 40(FP) // r1
MOVW R1, 44(FP) // r2
MOVW R2, 48(FP) // errno
BL runtime·exitsyscall(SB)
RET
error9:
MOVW $-1, R3
MOVW R3, 40(FP) // r1
MOVW R2, 44(FP) // r2
MOVW R0, 48(FP) // errno
BL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
MOVW 0(FP), R7 // syscall number
MOVW 4(FP), R0 // a1
MOVW 8(FP), R1 // a2
MOVW 12(FP), R2 // a3
SWI $0 // syscall
MOVW $0, R2
BCS errorr
MOVW R0, 16(FP) // r1
MOVW R1, 20(FP) // r2
MOVW R2, 24(FP) // errno
RET
errorr:
MOVW $-1, R3
MOVW R3, 16(FP) // r1
MOVW R2, 20(FP) // r2
MOVW R0, 24(FP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
MOVW 0(FP), R7 // syscall number
MOVW 4(FP), R0 // a1
MOVW 8(FP), R1 // a2
MOVW 12(FP), R2 // a3
MOVW 16(FP), R3 // a4
MOVW R13, R4
MOVW $20(FP), R13 // a5 to a6 are passed on stack
SWI $0 // syscall
MOVW R4, R13
MOVW $0, R2
BCS errorr6
MOVW R0, 28(FP) // r1
MOVW R1, 32(FP) // r2
MOVW R2, 36(FP) // errno
RET
errorr6:
MOVW $-1, R3
MOVW R3, 28(FP) // r1
MOVW R2, 32(FP) // r2
MOVW R0, 36(FP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_linux_386.s
View file @ aec3c6a3
......@@ -2,185 +2,32 @@
// 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 "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
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
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
JMP syscall·Syscall(SB)
// 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
JMP syscall·Syscall6(SB)
// 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
JMP syscall·RawSyscall(SB)
// 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 */
JMP syscall·RawSyscall6(SB)
// 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
JMP syscall·socketcall(SB)
// 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
JMP syscall·rawsocketcall(SB)
#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
JMP syscall·seek(SB)
unix/asm_linux_amd64.s
View file @ aec3c6a3
......@@ -2,125 +2,26 @@
// 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 "textflag.h"
//
// System calls for AMD64, Linux
//
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
// Trap # in AX, args in DI SI DX R10 R8 R9, return in AX DX
// Note that this differs from "standard" ABI convention, which
// would pass 4th arg in CX, not R10.
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
CALL runtime·entersyscall(SB)
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
CMPQ AX, $0xfffffffffffff001
JLS ok
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
NEGQ AX
MOVQ AX, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
CALL runtime·entersyscall(SB)
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
CMPQ AX, $0xfffffffffffff001
JLS ok6
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
NEGQ AX
MOVQ AX, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok6:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
CMPQ AX, $0xfffffffffffff001
JLS ok1
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
NEGQ AX
MOVQ AX, 56(SP) // errno
RET
ok1:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
CMPQ AX, $0xfffffffffffff001
JLS ok2
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
NEGQ AX
MOVQ AX, 80(SP) // errno
RET
ok2:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
TEXT ·gettimeofday(SB),NOSPLIT,$0-16
MOVQ 8(SP), DI
MOVQ $0, SI
MOVQ runtime·__vdso_gettimeofday_sym(SB), AX
CALL AX
CMPQ AX, $0xfffffffffffff001
JLS ok7
NEGQ AX
MOVQ AX, 16(SP) // errno
RET
ok7:
MOVQ $0, 16(SP) // errno
RET
JMP syscall·gettimeofday(SB)
unix/asm_linux_arm.s
View file @ aec3c6a3
......@@ -8,148 +8,20 @@
// System calls for arm, Linux
//
// TODO(kaib): handle error returns
// func Syscall(syscall uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
BL runtime·entersyscall(SB)
MOVW 4(SP), R7
MOVW 8(SP), R0
MOVW 12(SP), R1
MOVW 16(SP), R2
SWI $0
MOVW $0xfffff001, R1
CMP R1, R0
BLS ok
MOVW $-1, R1
MOVW R1, 20(SP) // r1
MOVW $0, R2
MOVW R2, 24(SP) // r2
RSB $0, R0, R0
MOVW R0, 28(SP) // errno
BL runtime·exitsyscall(SB)
RET
ok:
MOVW R0, 20(SP) // r1
MOVW $0, R0
MOVW R0, 24(SP) // r2
MOVW R0, 28(SP) // errno
BL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
// func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
// Actually Syscall5 but the rest of the code expects it to be named Syscall6.
TEXT ·Syscall6(SB),NOSPLIT,$0-40
BL runtime·entersyscall(SB)
MOVW 4(SP), R7 // syscall entry
MOVW 8(SP), R0
MOVW 12(SP), R1
MOVW 16(SP), R2
MOVW 20(SP), R3
MOVW 24(SP), R4
MOVW 28(SP), R5
SWI $0
MOVW $0xfffff001, R6
CMP R6, R0
BLS ok6
MOVW $-1, R1
MOVW R1, 32(SP) // r1
MOVW $0, R2
MOVW R2, 36(SP) // r2
RSB $0, R0, R0
MOVW R0, 40(SP) // errno
BL runtime·exitsyscall(SB)
RET
ok6:
MOVW R0, 32(SP) // r1
MOVW R1, 36(SP) // r2
MOVW $0, R0
MOVW R0, 40(SP) // errno
BL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
// func RawSyscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
// Actually RawSyscall5 but the rest of the code expects it to be named RawSyscall6.
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
MOVW 4(SP), R7 // syscall entry
MOVW 8(SP), R0
MOVW 12(SP), R1
MOVW 16(SP), R2
MOVW 20(SP), R3
MOVW 24(SP), R4
MOVW 28(SP), R5
SWI $0
MOVW $0xfffff001, R6
CMP R6, R0
BLS ok2
MOVW $-1, R1
MOVW R1, 32(SP) // r1
MOVW $0, R2
MOVW R2, 36(SP) // r2
RSB $0, R0, R0
MOVW R0, 40(SP) // errno
RET
ok2:
MOVW R0, 32(SP) // r1
MOVW R1, 36(SP) // r2
MOVW $0, R0
MOVW R0, 40(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
#define SYS__LLSEEK 140 /* from zsysnum_linux_arm.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,$0-32
BL runtime·entersyscall(SB)
MOVW $SYS__LLSEEK, R7 // syscall entry
MOVW 4(SP), R0 // fd
MOVW 12(SP), R1 // offset-high
MOVW 8(SP), R2 // offset-low
MOVW $20(SP), R3
MOVW 16(SP), R4 // whence
SWI $0
MOVW $0xfffff001, R6
CMP R6, R0
BLS okseek
MOVW $0, R1
MOVW R1, 20(SP)
MOVW R1, 24(SP)
RSB $0, R0, R0
MOVW R0, 28(SP) // errno
BL runtime·exitsyscall(SB)
RET
okseek:
// system call filled in newoffset already
MOVW $0, R0
MOVW R0, 28(SP) // errno
BL runtime·exitsyscall(SB)
RET
// func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
MOVW 4(SP), R7 // syscall entry
MOVW 8(SP), R0
MOVW 12(SP), R1
MOVW 16(SP), R2
SWI $0
MOVW $0xfffff001, R1
CMP R1, R0
BLS ok1
MOVW $-1, R1
MOVW R1, 20(SP) // r1
MOVW $0, R2
MOVW R2, 24(SP) // r2
RSB $0, R0, R0
MOVW R0, 28(SP) // errno
RET
ok1:
MOVW R0, 20(SP) // r1
MOVW $0, R0
MOVW R0, 24(SP) // r2
MOVW R0, 28(SP) // errno
RET
JMP syscall·seek(SB)
unix/asm_netbsd_386.s
View file @ aec3c6a3
......@@ -2,141 +2,26 @@
// 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 "textflag.h"
//
// System call support for 386, NetBSD
//
// func Syscall(trap int32, a1, a2, a3 int32) (r1, r2, err int32);
// func Syscall6(trap int32, a1, a2, a3, a4, a5, a6 int32) (r1, r2, err int32);
// Trap # in AX, args on stack above caller pc.
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
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
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok6
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
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
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok9
MOVL $-1, 44(SP) // r1
MOVL $-1, 48(SP) // r2
MOVL AX, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
MOVL AX, 44(SP) // r1
MOVL DX, 48(SP) // r2
MOVL $0, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok1
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
MOVL AX, 28(SP) // errno
RET
ok1:
MOVL AX, 20(SP) // r1
MOVL DX, 24(SP) // r2
MOVL $0, 28(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok2
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
MOVL AX, 40(SP) // errno
RET
ok2:
MOVL AX, 32(SP) // r1
MOVL DX, 36(SP) // r2
MOVL $0, 40(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_netbsd_amd64.s
View file @ aec3c6a3
......@@ -2,134 +2,26 @@
// 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 "textflag.h"
//
// System call support for AMD64, NetBSD
//
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
// func Syscall6(trap int64, a1, a2, a3, a4, a5, a6 int64) (r1, r2, err int64);
// func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64);
// Trap # in AX, args in DI SI DX, return in AX DX
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
CALL runtime·entersyscall(SB)
MOVQ 8(SP), AX // syscall entry
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
SYSCALL
JCC ok
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
CALL runtime·entersyscall(SB)
MOVQ 8(SP), AX // syscall entry
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
SYSCALL
JCC ok6
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok6:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
CALL runtime·entersyscall(SB)
MOVQ 8(SP), AX // syscall entry
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 64(SP), R11
MOVQ 72(SP), R12
MOVQ 80(SP), R13
SUBQ $32, SP
MOVQ R11, 8(SP) // arg 7
MOVQ R12, 16(SP) // arg 8
MOVQ R13, 24(SP) // arg 9
SYSCALL
JCC ok9
ADDQ $32, SP
MOVQ $-1, 88(SP) // r1
MOVQ $0, 96(SP) // r2
MOVQ AX, 104(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
ADDQ $32, SP
MOVQ AX, 88(SP) // r1
MOVQ DX, 96(SP) // r2
MOVQ $0, 104(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok1
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
RET
ok1:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok2
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
RET
ok2:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_netbsd_arm.s
View file @ aec3c6a3
......@@ -8,119 +8,20 @@
// System call support for ARM, NetBSD
//
// func Syscall(trap int32, a1, a2, a3 int32) (r1, r2, err int32);
// func Syscall6(trap int32, a1, a2, a3, a4, a5, a6 int32) (r1, r2, err int32);
// func Syscall9(trap int32, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int32)
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
BL runtime·entersyscall(SB)
MOVW 0(FP), R0 // sigcall num
MOVW 4(FP), R1 // a1
MOVW 8(FP), R2 // a2
MOVW 12(FP), R3 // a3
SWI $0 // syscall
MOVW $0, R2
BCS error
MOVW R0, 16(FP) // r1
MOVW R1, 20(FP) // r2
MOVW R2, 24(FP) // err
BL runtime·exitsyscall(SB)
RET
error:
MOVW $-1, R3
MOVW R3, 16(FP) // r1
MOVW R2, 20(FP) // r2
MOVW R0, 24(FP) // err
BL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
BL runtime·entersyscall(SB)
MOVW 0(FP), R0 // sigcall num
MOVW 4(FP), R1 // a1
MOVW 8(FP), R2 // a2
MOVW 12(FP), R3 // a3
MOVW R13, R4
MOVW $16(FP), R13 // a4 to a6 are passed on stack
SWI $0 // syscall
MOVW R4, R13
MOVW $0, R2
BCS error6
MOVW R0, 28(FP) // r1
MOVW R1, 32(FP) // r2
MOVW R2, 36(FP) // err
BL runtime·exitsyscall(SB)
RET
error6:
MOVW $-1, R3
MOVW R3, 28(FP) // r1
MOVW R2, 32(FP) // r2
MOVW R0, 36(FP) // err
BL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
BL runtime·entersyscall(SB)
MOVW 0(FP), R0 // sigcall num
MOVW 4(FP), R1 // a1
MOVW 8(FP), R2 // a2
MOVW 12(FP), R3 // a3
MOVW R13, R4
MOVW $16(FP), R13 // a4 to a9 are passed on stack
SWI $0 // syscall
MOVW R4, R13
MOVW $0, R2
BCS error9
MOVW R0, 40(FP) // r1
MOVW R1, 44(FP) // r2
MOVW R2, 48(FP) // err
BL runtime·exitsyscall(SB)
RET
error9:
MOVW $-1, R3
MOVW R3, 40(FP) // r1
MOVW R2, 44(FP) // r2
MOVW R0, 48(FP) // err
BL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
MOVW 0(FP), R0 // sigcall num
MOVW 4(FP), R1 // a1
MOVW 8(FP), R2 // a2
MOVW 12(FP), R3 // a3
SWI $0 // syscall
MOVW $0, R2
BCS errorr
MOVW R0, 16(FP) // r1
MOVW R1, 20(FP) // r2
MOVW R2, 24(FP) // err
RET
errorr:
MOVW $-1, R3
MOVW R3, 16(FP) // r1
MOVW R2, 20(FP) // r2
MOVW R0, 24(FP) // err
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
MOVW 0(FP), R0 // sigcall num
MOVW 4(FP), R1 // a1
MOVW 8(FP), R2 // a2
MOVW 12(FP), R3 // a3
MOVW R13, R4
MOVW $16(FP), R13 // a4 to a9 are passed on stack
SWI $0 // syscall
MOVW R4, R13
MOVW $0, R2
BCS errorr6
MOVW R0, 28(FP) // r1
MOVW R1, 32(FP) // r2
MOVW R2, 36(FP) // err
RET
errorr6:
MOVW $-1, R3
MOVW R3, 28(FP) // r1
MOVW R2, 32(FP) // r2
MOVW R0, 36(FP) // err
RET
JMP syscall·RawSyscall6(SB)
unix/asm_openbsd_386.s
View file @ aec3c6a3
......@@ -2,141 +2,26 @@
// 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 "textflag.h"
//
// System call support for 386, OpenBSD
//
// func Syscall(trap int32, a1, a2, a3 int32) (r1, r2, err int32);
// func Syscall6(trap int32, a1, a2, a3, a4, a5, a6 int32) (r1, r2, err int32);
// Trap # in AX, args on stack above caller pc.
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
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
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok6
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
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
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
CALL runtime·entersyscall(SB)
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok9
MOVL $-1, 44(SP) // r1
MOVL $-1, 48(SP) // r2
MOVL AX, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
MOVL AX, 44(SP) // r1
MOVL DX, 48(SP) // r2
MOVL $0, 52(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok1
MOVL $-1, 20(SP) // r1
MOVL $-1, 24(SP) // r2
MOVL AX, 28(SP) // errno
RET
ok1:
MOVL AX, 20(SP) // r1
MOVL DX, 24(SP) // r2
MOVL $0, 28(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
MOVL 4(SP), AX // syscall entry
// slide args down on top of system call number
LEAL 8(SP), SI
LEAL 4(SP), DI
CLD
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
MOVSL
INT $0x80
JAE ok2
MOVL $-1, 32(SP) // r1
MOVL $-1, 36(SP) // r2
MOVL AX, 40(SP) // errno
RET
ok2:
MOVL AX, 32(SP) // r1
MOVL DX, 36(SP) // r2
MOVL $0, 40(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
unix/asm_openbsd_amd64.s
View file @ aec3c6a3
......@@ -2,134 +2,26 @@
// 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 "textflag.h"
//
// System call support for AMD64, OpenBSD
//
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
// func Syscall6(trap int64, a1, a2, a3, a4, a5, a6 int64) (r1, r2, err int64);
// func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64);
// Trap # in AX, args in DI SI DX, return in AX DX
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
CALL runtime·entersyscall(SB)
MOVQ 8(SP), AX // syscall entry
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
SYSCALL
JCC ok
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
CALL runtime·entersyscall(SB)
MOVQ 8(SP), AX // syscall entry
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
SYSCALL
JCC ok6
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok6:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
CALL runtime·entersyscall(SB)
MOVQ 8(SP), AX // syscall entry
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 64(SP), R11
MOVQ 72(SP), R12
MOVQ 80(SP), R13
SUBQ $32, SP
MOVQ R11, 8(SP) // arg 7
MOVQ R12, 16(SP) // arg 8
MOVQ R13, 24(SP) // arg 9
SYSCALL
JCC ok9
ADDQ $32, SP
MOVQ $-1, 88(SP) // r1
MOVQ $0, 96(SP) // r2
MOVQ AX, 104(SP) // errno
CALL runtime·exitsyscall(SB)
RET
ok9:
ADDQ $32, SP
MOVQ AX, 88(SP) // r1
MOVQ DX, 96(SP) // r2
MOVQ $0, 104(SP) // errno
CALL runtime·exitsyscall(SB)
RET
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok1
MOVQ $-1, 40(SP) // r1
MOVQ $0, 48(SP) // r2
MOVQ AX, 56(SP) // errno
RET
ok1:
MOVQ AX, 40(SP) // r1
MOVQ DX, 48(SP) // r2
MOVQ $0, 56(SP) // errno
RET
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
MOVQ 16(SP), DI
MOVQ 24(SP), SI
MOVQ 32(SP), DX
MOVQ 40(SP), R10
MOVQ 48(SP), R8
MOVQ 56(SP), R9
MOVQ 8(SP), AX // syscall entry
SYSCALL
JCC ok2
MOVQ $-1, 64(SP) // r1
MOVQ $0, 72(SP) // r2
MOVQ AX, 80(SP) // errno
RET
ok2:
MOVQ AX, 64(SP) // r1
MOVQ DX, 72(SP) // r2
MOVQ $0, 80(SP) // errno
RET
JMP syscall·RawSyscall6(SB)
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