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[dev.power64] syscall: the manually written parts for linux/power64 and linux/power64le
LGTM=rsc R=rsc, iant CC=golang-codereviews https://golang.org/cl/129800043
This commit is contained in:
Shenghou Ma
parent
5f691cfaf1
commit
f3e2023764
2 changed files with 205 additions and 0 deletions
108
src/pkg/syscall/asm_linux_power64x.s
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108
src/pkg/syscall/asm_linux_power64x.s
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// Copyright 2014 The Go Authors. All rights reserved.
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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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// +build linux
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// +build power64 power64le
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#include "../../cmd/ld/textflag.h"
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//
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// System calls for Power64, Linux
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//
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// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
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TEXT ·Syscall(SB),NOSPLIT,$0-56
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BL runtime·entersyscall(SB)
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MOVD a1+8(FP), R3
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MOVD a2+16(FP), R4
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MOVD a3+24(FP), R5
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MOVD R0, R6
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MOVD R0, R7
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MOVD R0, R8
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MOVD trap+0(FP), R9 // syscall entry
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SYSCALL R9
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BVC ok
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NEG R3, R3
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MOVD $-1, R4
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MOVD R4, r1+32(FP) // r1
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MOVD R0, r2+40(FP) // r2
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MOVD R3, err+48(FP) // errno
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BL runtime·exitsyscall(SB)
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RETURN
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ok:
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MOVD R3, r1+32(FP) // r1
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MOVD R4, r2+40(FP) // r2
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MOVD R0, err+48(FP) // errno
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BL runtime·exitsyscall(SB)
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RETURN
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TEXT ·Syscall6(SB),NOSPLIT,$0-80
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BL runtime·entersyscall(SB)
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MOVD a1+8(FP), R3
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MOVD a2+16(FP), R4
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MOVD a3+24(FP), R5
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MOVD a4+32(FP), R6
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MOVD a5+40(FP), R7
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MOVD a6+48(FP), R8
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MOVD trap+0(FP), R9 // syscall entry
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SYSCALL R9
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BVC ok6
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NEG R3, R3
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MOVD $-1, R4
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MOVD R4, r1+56(FP) // r1
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MOVD R0, r2+64(FP) // r2
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MOVD R3, err+72(FP) // errno
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BL runtime·exitsyscall(SB)
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RETURN
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ok6:
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MOVD R3, r1+56(FP) // r1
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MOVD R4, r2+64(FP) // r2
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MOVD R0, err+72(FP) // errno
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BL runtime·exitsyscall(SB)
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RETURN
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TEXT ·RawSyscall(SB),NOSPLIT,$0-56
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MOVD a1+8(FP), R3
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MOVD a2+16(FP), R4
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MOVD a3+24(FP), R5
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MOVD R0, R6
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MOVD R0, R7
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MOVD R0, R8
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MOVD trap+0(FP), R9 // syscall entry
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SYSCALL R9
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BVC ok1
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NEG R3, R3
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MOVD $-1, R4
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MOVD R4, r1+32(FP) // r1
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MOVD R0, r2+40(FP) // r2
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MOVD R3, err+48(FP) // errno
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RETURN
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ok1:
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MOVD R3, r1+32(FP) // r1
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MOVD R4, r2+40(FP) // r2
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MOVD R0, err+48(FP) // errno
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RETURN
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
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MOVD a1+8(FP), R3
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MOVD a2+16(FP), R4
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MOVD a3+24(FP), R5
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MOVD a4+32(FP), R6
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MOVD a5+40(FP), R7
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MOVD a6+48(FP), R8
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MOVD trap+0(FP), R9 // syscall entry
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SYSCALL R9
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BVC ok2
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NEG R3, R3
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MOVD $-1, R4
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MOVD R4, r1+56(FP) // r1
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MOVD R0, r2+64(FP) // r2
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MOVD R3, err+72(FP) // errno
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RETURN
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ok2:
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MOVD R3, r1+56(FP) // r1
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MOVD R4, r2+64(FP) // r2
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MOVD R0, err+72(FP) // errno
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RETURN
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97
src/pkg/syscall/syscall_linux_power64x.go
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97
src/pkg/syscall/syscall_linux_power64x.go
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// Copyright 2009 The Go Authors. All rights reserved.
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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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// +build linux
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// +build power64 power64le
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package syscall
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//sys Chown(path string, uid int, gid int) (err error)
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//sys Fchown(fd int, uid int, gid int) (err error)
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//sys Fstat(fd int, stat *Stat_t) (err error)
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//sys Fstatfs(fd int, buf *Statfs_t) (err error)
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//sys Ftruncate(fd int, length int64) (err error)
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//sysnb Getegid() (egid int)
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//sysnb Geteuid() (euid int)
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//sysnb Getgid() (gid int)
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//sysnb Getrlimit(resource int, rlim *Rlimit) (err error)
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//sysnb Getuid() (uid int)
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//sys Ioperm(from int, num int, on int) (err error)
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//sys Iopl(level int) (err error)
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//sys Lchown(path string, uid int, gid int) (err error)
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//sys Listen(s int, n int) (err error)
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//sys Lstat(path string, stat *Stat_t) (err error)
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//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
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//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
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//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
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//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
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//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
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//sys Setfsgid(gid int) (err error)
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//sys Setfsuid(uid int) (err error)
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//sysnb Setregid(rgid int, egid int) (err error)
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//sysnb Setresgid(rgid int, egid int, sgid int) (err error)
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//sysnb Setresuid(ruid int, euid int, suid int) (err error)
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//sysnb Setrlimit(resource int, rlim *Rlimit) (err error)
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//sysnb Setreuid(ruid int, euid int) (err error)
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//sys Shutdown(fd int, how int) (err error)
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//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
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//sys Stat(path string, stat *Stat_t) (err error)
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//sys Statfs(path string, buf *Statfs_t) (err error)
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//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) = SYS_SYNC_FILE_RANGE2
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//sys Truncate(path string, length int64) (err error)
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//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
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//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
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//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
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//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
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//sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
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//sysnb setgroups(n int, list *_Gid_t) (err error)
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//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
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//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
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//sysnb socket(domain int, typ int, proto int) (fd int, err error)
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//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
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//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
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//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
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//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
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//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
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//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
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//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
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//sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
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func Getpagesize() int { return 4096 }
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//sysnb Gettimeofday(tv *Timeval) (err error)
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//sysnb Time(t *Time_t) (tt Time_t, err error)
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func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
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func NsecToTimespec(nsec int64) (ts Timespec) {
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ts.Sec = nsec / 1e9
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ts.Nsec = nsec % 1e9
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return
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}
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func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 }
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func NsecToTimeval(nsec int64) (tv Timeval) {
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nsec += 999 // round up to microsecond
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tv.Sec = nsec / 1e9
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tv.Usec = nsec % 1e9 / 1e3
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return
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}
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func (r *PtraceRegs) PC() uint64 { return r.Nip }
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func (r *PtraceRegs) SetPC(pc uint64) { r.Nip = pc }
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func (iov *Iovec) SetLen(length int) {
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iov.Len = uint64(length)
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}
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func (msghdr *Msghdr) SetControllen(length int) {
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msghdr.Controllen = uint64(length)
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}
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func (cmsg *Cmsghdr) SetLen(length int) {
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cmsg.Len = uint64(length)
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}
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