asm_linux_riscv64.s raw

   1  // Copyright 2019 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  //go:build riscv64 && gc
   6  
   7  #include "textflag.h"
   8  
   9  //
  10  // System calls for linux/riscv64.
  11  //
  12  // Where available, just jump to package syscall's implementation of
  13  // these functions.
  14  
  15  TEXT ·Syscall(SB),NOSPLIT,$0-56
  16  	JMP	syscall·Syscall(SB)
  17  
  18  TEXT ·Syscall6(SB),NOSPLIT,$0-80
  19  	JMP	syscall·Syscall6(SB)
  20  
  21  TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
  22  	CALL	runtime·entersyscall(SB)
  23  	MOV	a1+8(FP), A0
  24  	MOV	a2+16(FP), A1
  25  	MOV	a3+24(FP), A2
  26  	MOV	trap+0(FP), A7	// syscall entry
  27  	ECALL
  28  	MOV	A0, r1+32(FP)	// r1
  29  	MOV	A1, r2+40(FP)	// r2
  30  	CALL	runtime·exitsyscall(SB)
  31  	RET
  32  
  33  TEXT ·RawSyscall(SB),NOSPLIT,$0-56
  34  	JMP	syscall·RawSyscall(SB)
  35  
  36  TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
  37  	JMP	syscall·RawSyscall6(SB)
  38  
  39  TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
  40  	MOV	a1+8(FP), A0
  41  	MOV	a2+16(FP), A1
  42  	MOV	a3+24(FP), A2
  43  	MOV	trap+0(FP), A7	// syscall entry
  44  	ECALL
  45  	MOV	A0, r1+32(FP)
  46  	MOV	A1, r2+40(FP)
  47  	RET
  48