github.com/ice-blockchain/go/src@v0.0.0-20240403114104-1564d284e521/syscall/asm_darwin_amd64.s (about)

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  #include "textflag.h"
     6  #include "funcdata.h"
     7  
     8  //
     9  // System call support for AMD64, Darwin
    10  //
    11  
    12  // Trap # in AX, args in DI SI DX, return in AX DX
    13  
    14  // func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno);
    15  TEXT	·Syscall(SB),NOSPLIT,$0-56
    16  	CALL	runtime·entersyscall<ABIInternal>(SB)
    17  	MOVQ	a1+8(FP), DI
    18  	MOVQ	a2+16(FP), SI
    19  	MOVQ	a3+24(FP), DX
    20  	MOVQ	trap+0(FP), AX	// syscall entry
    21  	ADDQ	$0x2000000, AX
    22  	SYSCALL
    23  	JCC	ok
    24  	MOVQ	$-1, r1+32(FP)
    25  	MOVQ	$0, r2+40(FP)
    26  	MOVQ	AX, err+48(FP)
    27  	CALL	runtime·exitsyscall<ABIInternal>(SB)
    28  	RET
    29  ok:
    30  	MOVQ	AX, r1+32(FP)
    31  	MOVQ	DX, r2+40(FP)
    32  	MOVQ	$0, err+48(FP)
    33  	CALL	runtime·exitsyscall<ABIInternal>(SB)
    34  	RET
    35  
    36  // func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno);
    37  TEXT	·Syscall6(SB),NOSPLIT,$0-80
    38  	CALL	runtime·entersyscall<ABIInternal>(SB)
    39  	MOVQ	a1+8(FP), DI
    40  	MOVQ	a2+16(FP), SI
    41  	MOVQ	a3+24(FP), DX
    42  	MOVQ	a4+32(FP), R10
    43  	MOVQ	a5+40(FP), R8
    44  	MOVQ	a6+48(FP), R9
    45  	MOVQ	trap+0(FP), AX	// syscall entry
    46  	ADDQ	$0x2000000, AX
    47  	SYSCALL
    48  	JCC	ok6
    49  	MOVQ	$-1, r1+56(FP)
    50  	MOVQ	$0, r2+64(FP)
    51  	MOVQ	AX, err+72(FP)
    52  	CALL	runtime·exitsyscall<ABIInternal>(SB)
    53  	RET
    54  ok6:
    55  	MOVQ	AX, r1+56(FP)
    56  	MOVQ	DX, r2+64(FP)
    57  	MOVQ	$0, err+72(FP)
    58  	CALL	runtime·exitsyscall<ABIInternal>(SB)
    59  	RET
    60  
    61  // func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
    62  TEXT	·Syscall9(SB),NOSPLIT,$0-104
    63  	CALL	runtime·entersyscall<ABIInternal>(SB)
    64  	MOVQ	trap+0(FP), AX	// syscall entry
    65  	MOVQ	a1+8(FP), DI
    66  	MOVQ	a2+16(FP), SI
    67  	MOVQ	a3+24(FP), DX
    68  	MOVQ	a4+32(FP), R10
    69  	MOVQ	a5+40(FP), R8
    70  	MOVQ	a6+48(FP), R9
    71  	MOVQ	a7+56(FP), R11
    72  	MOVQ	a8+64(FP), R12
    73  	MOVQ	a9+72(FP), R13
    74  	SUBQ	$32, SP
    75  	MOVQ	R11, 8(SP)
    76  	MOVQ	R12, 16(SP)
    77  	MOVQ	R13, 24(SP)
    78  	ADDQ	$0x2000000, AX
    79  	SYSCALL
    80  	JCC	ok9
    81  	ADDQ	$32, SP
    82  	MOVQ	$-1, r1+80(FP)
    83  	MOVQ	$0, r2+88(FP)
    84  	MOVQ	AX, err+96(FP)
    85  	CALL	runtime·exitsyscall<ABIInternal>(SB)
    86  	RET
    87  ok9:
    88  	ADDQ	$32, SP
    89  	MOVQ	AX, r1+80(FP)
    90  	MOVQ	DX, r2+88(FP)
    91  	MOVQ	$0, err+96(FP)
    92  	CALL	runtime·exitsyscall<ABIInternal>(SB)
    93  	RET
    94  
    95  // func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
    96  TEXT ·RawSyscall(SB),NOSPLIT,$0-56
    97  	MOVQ	a1+8(FP), DI
    98  	MOVQ	a2+16(FP), SI
    99  	MOVQ	a3+24(FP), DX
   100  	MOVQ	trap+0(FP), AX	// syscall entry
   101  	ADDQ	$0x2000000, AX
   102  	SYSCALL
   103  	JCC	ok1
   104  	MOVQ	$-1, r1+32(FP)
   105  	MOVQ	$0, r2+40(FP)
   106  	MOVQ	AX, err+48(FP)
   107  	RET
   108  ok1:
   109  	MOVQ	AX, r1+32(FP)
   110  	MOVQ	DX, r2+40(FP)
   111  	MOVQ	$0, err+48(FP)
   112  	RET
   113  
   114  // func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
   115  TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
   116  	MOVQ	a1+8(FP), DI
   117  	MOVQ	a2+16(FP), SI
   118  	MOVQ	a3+24(FP), DX
   119  	MOVQ	a4+32(FP), R10
   120  	MOVQ	a5+40(FP), R8
   121  	MOVQ	a6+48(FP), R9
   122  	MOVQ	trap+0(FP), AX	// syscall entry
   123  	ADDQ	$0x2000000, AX
   124  	SYSCALL
   125  	JCC	ok2
   126  	MOVQ	$-1, r1+56(FP)
   127  	MOVQ	$0, r2+64(FP)
   128  	MOVQ	AX, err+72(FP)
   129  	RET
   130  ok2:
   131  	MOVQ	AX, r1+56(FP)
   132  	MOVQ	DX, r2+64(FP)
   133  	MOVQ	$0, err+72(FP)
   134  	RET