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
diff --git a/unix/asm_darwin_386.s b/unix/asm_darwin_386.s
index dfe94fb..f9338da 100644
--- a/unix/asm_darwin_386.s
+++ b/unix/asm_darwin_386.s
@@ -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)
diff --git a/unix/asm_darwin_amd64.s b/unix/asm_darwin_amd64.s
index d6f1c96..9adb652 100644
--- a/unix/asm_darwin_amd64.s
+++ b/unix/asm_darwin_amd64.s
@@ -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)
diff --git a/unix/asm_dragonfly_386.s b/unix/asm_dragonfly_386.s
index 37d655f..68aa5e4 100644
--- a/unix/asm_dragonfly_386.s
+++ b/unix/asm_dragonfly_386.s
@@ -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)
diff --git a/unix/asm_dragonfly_amd64.s b/unix/asm_dragonfly_amd64.s
index c8434f9..77b1bf9 100644
--- a/unix/asm_dragonfly_amd64.s
+++ b/unix/asm_dragonfly_amd64.s
@@ -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)
diff --git a/unix/asm_freebsd_386.s b/unix/asm_freebsd_386.s
index f50b5a0..1146f0b 100644
--- a/unix/asm_freebsd_386.s
+++ b/unix/asm_freebsd_386.s
@@ -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)
diff --git a/unix/asm_freebsd_amd64.s b/unix/asm_freebsd_amd64.s
index 58cbfe1..d80fd12 100644
--- a/unix/asm_freebsd_amd64.s
+++ b/unix/asm_freebsd_amd64.s
@@ -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)
diff --git a/unix/asm_freebsd_arm.s b/unix/asm_freebsd_arm.s
index 5eb4033..0cbb53d 100644
--- a/unix/asm_freebsd_arm.s
+++ b/unix/asm_freebsd_arm.s
@@ -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)
diff --git a/unix/asm_linux_386.s b/unix/asm_linux_386.s
index 05cf89a..5d3ad9a 100644
--- a/unix/asm_linux_386.s
+++ b/unix/asm_linux_386.s
@@ -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
+ JMP syscall·RawSyscall6(SB)
-#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
+ 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)
diff --git a/unix/asm_linux_amd64.s b/unix/asm_linux_amd64.s
index 5146932..0c8c778 100644
--- a/unix/asm_linux_amd64.s
+++ b/unix/asm_linux_amd64.s
@@ -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)
diff --git a/unix/asm_linux_arm.s b/unix/asm_linux_arm.s
index 014fa61..054927a 100644
--- a/unix/asm_linux_arm.s
+++ b/unix/asm_linux_arm.s
@@ -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)
-// 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
-
-#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·RawSyscall(SB)
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
+ JMP syscall·RawSyscall6(SB)
+
+TEXT ·seek(SB),NOSPLIT,$0-32
+ JMP syscall·seek(SB)
diff --git a/unix/asm_netbsd_386.s b/unix/asm_netbsd_386.s
index c582632..682e4bd 100644
--- a/unix/asm_netbsd_386.s
+++ b/unix/asm_netbsd_386.s
@@ -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)
diff --git a/unix/asm_netbsd_amd64.s b/unix/asm_netbsd_amd64.s
index 8285382..e80eadd 100644
--- a/unix/asm_netbsd_amd64.s
+++ b/unix/asm_netbsd_amd64.s
@@ -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)
diff --git a/unix/asm_netbsd_arm.s b/unix/asm_netbsd_arm.s
index b061180..11b5ab9 100644
--- a/unix/asm_netbsd_arm.s
+++ b/unix/asm_netbsd_arm.s
@@ -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)
diff --git a/unix/asm_openbsd_386.s b/unix/asm_openbsd_386.s
index 17fbb65..65b0e42 100644
--- a/unix/asm_openbsd_386.s
+++ b/unix/asm_openbsd_386.s
@@ -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)
diff --git a/unix/asm_openbsd_amd64.s b/unix/asm_openbsd_amd64.s
index fe61482..55aada1 100644
--- a/unix/asm_openbsd_amd64.s
+++ b/unix/asm_openbsd_amd64.s
@@ -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)
