CURRENT PATH:
/
opt
/
golang
/
1.22.0
/
src
/
syscall
/
KEMBALI
|
HOME
Upload File Local:
Upload
Upload via URL:
Download
Dir Baru
File Baru
Editing:
asm_plan9_amd64.s
// Copyright 2009 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. #include "textflag.h" #include "funcdata.h" // // System call support for Plan 9 // //func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err string) //func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err string) //func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr) //func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) #define SYS_ERRSTR 41 /* from zsysnum_plan9.go */ TEXT ·Syscall(SB),NOSPLIT,$168-64 NO_LOCAL_POINTERS CALL runtime·entersyscall<ABIInternal>(SB) MOVQ trap+0(FP), BP // syscall entry // copy args down LEAQ a1+8(FP), SI LEAQ sysargs-160(SP), DI CLD MOVSQ MOVSQ MOVSQ SYSCALL MOVQ AX, r1+32(FP) MOVQ $0, r2+40(FP) CMPL AX, $-1 JNE ok3 LEAQ errbuf-128(SP), AX MOVQ AX, sysargs-160(SP) MOVQ $128, sysargs1-152(SP) MOVQ $SYS_ERRSTR, BP SYSCALL CALL runtime·exitsyscall(SB) // call via ABI wrapper, ensuring ABIInternal fixed registers are set MOVQ sysargs-160(SP), AX MOVQ AX, errbuf-168(SP) CALL runtime·gostring(SB) LEAQ str-160(SP), SI JMP copyresult3 ok3: CALL runtime·exitsyscall(SB) // call via ABI wrapper, ensuring ABIInternal fixed registers are set LEAQ ·emptystring(SB), SI copyresult3: LEAQ err+48(FP), DI CLD MOVSQ MOVSQ RET TEXT ·Syscall6(SB),NOSPLIT,$168-88 NO_LOCAL_POINTERS CALL runtime·entersyscall<ABIInternal>(SB) MOVQ trap+0(FP), BP // syscall entry // copy args down LEAQ a1+8(FP), SI LEAQ sysargs-160(SP), DI CLD MOVSQ MOVSQ MOVSQ MOVSQ MOVSQ MOVSQ SYSCALL MOVQ AX, r1+56(FP) MOVQ $0, r2+64(FP) CMPL AX, $-1 JNE ok4 LEAQ errbuf-128(SP), AX MOVQ AX, sysargs-160(SP) MOVQ $128, sysargs1-152(SP) MOVQ $SYS_ERRSTR, BP SYSCALL CALL runtime·exitsyscall(SB) // call via ABI wrapper, ensuring ABIInternal fixed registers are set MOVQ sysargs-160(SP), AX MOVQ AX, errbuf-168(SP) CALL runtime·gostring(SB) LEAQ str-160(SP), SI JMP copyresult4 ok4: CALL runtime·exitsyscall(SB) // call via ABI wrapper, ensuring ABIInternal fixed registers are set LEAQ ·emptystring(SB), SI copyresult4: LEAQ err+72(FP), DI CLD MOVSQ MOVSQ RET TEXT ·RawSyscall(SB),NOSPLIT,$0-56 MOVQ trap+0(FP), BP // syscall entry // slide args down on top of system call number LEAQ a1+8(FP), SI LEAQ trap+0(FP), DI CLD MOVSQ MOVSQ MOVSQ SYSCALL MOVQ AX, r1+32(FP) MOVQ AX, r2+40(FP) MOVQ AX, err+48(FP) RET TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 MOVQ trap+0(FP), BP // syscall entry // slide args down on top of system call number LEAQ a1+8(FP), SI LEAQ trap+0(FP), DI CLD MOVSQ MOVSQ MOVSQ MOVSQ MOVSQ MOVSQ SYSCALL MOVQ AX, r1+56(FP) MOVQ AX, r2+64(FP) MOVQ AX, err+72(FP) RET #define SYS_SEEK 39 /* from zsysnum_plan9.go */ //func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int64, err string) TEXT ·seek(SB),NOSPLIT,$48-56 NO_LOCAL_POINTERS LEAQ newoffset+32(FP), AX MOVQ AX, placeholder+0(FP) // copy args down LEAQ placeholder+0(FP), SI LEAQ sysargs-40(SP), DI CLD MOVSQ MOVSQ MOVSQ MOVSQ MOVSQ MOVQ $SYS_SEEK, BP // syscall entry SYSCALL CMPL AX, $-1 JNE ok6 MOVQ AX, newoffset+32(FP) CALL syscall·errstr(SB) MOVQ SP, SI JMP copyresult6 ok6: LEAQ ·emptystring(SB), SI copyresult6: LEAQ err+40(FP), DI CLD MOVSQ MOVSQ RET
SIMPAN
BATAL