mirror of https://github.com/golang/go.git
syscall: use name+(NN)FP on linux/amd64
Generated from a modified go vet. Change-Id: Ibe82941283da9bd4dbc7fa624a33ffb12424daa2 Reviewed-on: https://go-review.googlesource.com/2817 Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
David Crawshaw
parent
01295d7912
commit
695a0fb4ef
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@ -2,9 +2,6 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// TODO(rsc): Rewrite all nn(SP) references into name+(nn-8)(FP)
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// so that go vet can check that they are correct.
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#include "textflag.h"
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#include "funcdata.h"
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@ -19,100 +16,104 @@
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TEXT ·Syscall(SB),NOSPLIT,$0-56
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CALL runtime·entersyscall(SB)
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MOVQ 16(SP), DI
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MOVQ 24(SP), SI
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MOVQ 32(SP), DX
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MOVQ a1+8(FP), DI
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MOVQ a2+16(FP), SI
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MOVQ a3+24(FP), DX
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MOVQ $0, R10
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MOVQ $0, R8
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MOVQ $0, R9
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MOVQ 8(SP), AX // syscall entry
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MOVQ trap+0(FP), AX // syscall entry
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SYSCALL
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CMPQ AX, $0xfffffffffffff001
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JLS ok
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MOVQ $-1, 40(SP) // r1
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MOVQ $0, 48(SP) // r2
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MOVQ $-1, r1+32(FP)
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MOVQ $0, r2+40(FP)
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NEGQ AX
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MOVQ AX, 56(SP) // errno
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MOVQ AX, err+48(FP)
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CALL runtime·exitsyscall(SB)
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RET
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ok:
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MOVQ AX, 40(SP) // r1
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MOVQ DX, 48(SP) // r2
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MOVQ $0, 56(SP) // errno
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MOVQ AX, r1+32(FP)
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MOVQ DX, r2+40(FP)
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MOVQ $0, err+48(FP)
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CALL runtime·exitsyscall(SB)
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RET
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// func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
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TEXT ·Syscall6(SB),NOSPLIT,$0-80
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CALL runtime·entersyscall(SB)
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MOVQ 16(SP), DI
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MOVQ 24(SP), SI
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MOVQ 32(SP), DX
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MOVQ 40(SP), R10
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MOVQ 48(SP), R8
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MOVQ 56(SP), R9
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MOVQ 8(SP), AX // syscall entry
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MOVQ a1+8(FP), DI
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MOVQ a2+16(FP), SI
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MOVQ a3+24(FP), DX
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MOVQ a4+32(FP), R10
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MOVQ a5+40(FP), R8
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MOVQ a6+48(FP), R9
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MOVQ trap+0(FP), AX // syscall entry
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SYSCALL
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CMPQ AX, $0xfffffffffffff001
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JLS ok6
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MOVQ $-1, 64(SP) // r1
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MOVQ $0, 72(SP) // r2
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MOVQ $-1, r1+56(FP)
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MOVQ $0, r2+64(FP)
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NEGQ AX
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MOVQ AX, 80(SP) // errno
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MOVQ AX, err+72(FP)
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CALL runtime·exitsyscall(SB)
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RET
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ok6:
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MOVQ AX, 64(SP) // r1
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MOVQ DX, 72(SP) // r2
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MOVQ $0, 80(SP) // errno
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MOVQ AX, r1+56(FP)
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MOVQ DX, r2+64(FP)
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MOVQ $0, err+72(FP)
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CALL runtime·exitsyscall(SB)
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RET
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// func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
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TEXT ·RawSyscall(SB),NOSPLIT,$0-56
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MOVQ 16(SP), DI
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MOVQ 24(SP), SI
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MOVQ 32(SP), DX
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MOVQ a1+8(FP), DI
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MOVQ a2+16(FP), SI
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MOVQ a3+24(FP), DX
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MOVQ $0, R10
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MOVQ $0, R8
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MOVQ $0, R9
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MOVQ 8(SP), AX // syscall entry
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MOVQ trap+0(FP), AX // syscall entry
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SYSCALL
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CMPQ AX, $0xfffffffffffff001
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JLS ok1
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MOVQ $-1, 40(SP) // r1
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MOVQ $0, 48(SP) // r2
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MOVQ $-1, r1+32(FP)
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MOVQ $0, r2+40(FP)
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NEGQ AX
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MOVQ AX, 56(SP) // errno
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MOVQ AX, err+48(FP)
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RET
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ok1:
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MOVQ AX, 40(SP) // r1
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MOVQ DX, 48(SP) // r2
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MOVQ $0, 56(SP) // errno
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MOVQ AX, r1+32(FP)
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MOVQ DX, r2+40(FP)
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MOVQ $0, err+48(FP)
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RET
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// func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
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MOVQ 16(SP), DI
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MOVQ 24(SP), SI
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MOVQ 32(SP), DX
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MOVQ 40(SP), R10
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MOVQ 48(SP), R8
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MOVQ 56(SP), R9
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MOVQ 8(SP), AX // syscall entry
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MOVQ a1+8(FP), DI
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MOVQ a2+16(FP), SI
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MOVQ a3+24(FP), DX
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MOVQ a4+32(FP), R10
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MOVQ a5+40(FP), R8
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MOVQ a6+48(FP), R9
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MOVQ trap+0(FP), AX // syscall entry
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SYSCALL
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CMPQ AX, $0xfffffffffffff001
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JLS ok2
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MOVQ $-1, 64(SP) // r1
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MOVQ $0, 72(SP) // r2
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MOVQ $-1, r1+56(FP)
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MOVQ $0, r2+64(FP)
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NEGQ AX
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MOVQ AX, 80(SP) // errno
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MOVQ AX, err+72(FP)
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RET
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ok2:
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MOVQ AX, 64(SP) // r1
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MOVQ DX, 72(SP) // r2
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MOVQ $0, 80(SP) // errno
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MOVQ AX, r1+56(FP)
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MOVQ DX, r2+64(FP)
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MOVQ $0, err+72(FP)
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RET
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// func gettimeofday(tv *Timeval) (err uintptr)
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TEXT ·gettimeofday(SB),NOSPLIT,$0-16
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MOVQ 8(SP), DI
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MOVQ tv+0(FP), DI
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MOVQ $0, SI
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MOVQ runtime·__vdso_gettimeofday_sym(SB), AX
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CALL AX
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@ -120,8 +121,8 @@ TEXT ·gettimeofday(SB),NOSPLIT,$0-16
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CMPQ AX, $0xfffffffffffff001
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JLS ok7
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NEGQ AX
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MOVQ AX, 16(SP) // errno
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MOVQ AX, err+8(FP)
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RET
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ok7:
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MOVQ $0, 16(SP) // errno
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MOVQ $0, err+8(FP)
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RET
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