syscall_linux_ppc.go (7016B)
1 // Copyright 2021 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 linux && ppc 6 7 package unix 8 9 import ( 10 "syscall" 11 "unsafe" 12 ) 13 14 //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) 15 //sys Fchown(fd int, uid int, gid int) (err error) 16 //sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64 17 //sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64 18 //sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64 19 //sysnb Getegid() (egid int) 20 //sysnb Geteuid() (euid int) 21 //sysnb Getgid() (gid int) 22 //sysnb Getuid() (uid int) 23 //sys Ioperm(from int, num int, on int) (err error) 24 //sys Iopl(level int) (err error) 25 //sys Lchown(path string, uid int, gid int) (err error) 26 //sys Listen(s int, n int) (err error) 27 //sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64 28 //sys Pause() (err error) 29 //sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 30 //sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 31 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) 32 //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT 33 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64 34 //sys setfsgid(gid int) (prev int, err error) 35 //sys setfsuid(uid int) (prev int, err error) 36 //sys Shutdown(fd int, how int) (err error) 37 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error) 38 //sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64 39 //sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64 40 //sys Ustat(dev int, ubuf *Ustat_t) (err error) 41 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) 42 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 43 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 44 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 45 //sysnb setgroups(n int, list *_Gid_t) (err error) 46 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 47 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 48 //sysnb socket(domain int, typ int, proto int) (fd int, err error) 49 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 50 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 51 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 52 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 53 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 54 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 55 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 56 57 //sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) 58 //sysnb Gettimeofday(tv *Timeval) (err error) 59 //sysnb Time(t *Time_t) (tt Time_t, err error) 60 //sys Utime(path string, buf *Utimbuf) (err error) 61 //sys utimes(path string, times *[2]Timeval) (err error) 62 63 func Fadvise(fd int, offset int64, length int64, advice int) (err error) { 64 _, _, e1 := Syscall6(SYS_FADVISE64_64, uintptr(fd), uintptr(advice), uintptr(offset>>32), uintptr(offset), uintptr(length>>32), uintptr(length)) 65 if e1 != 0 { 66 err = errnoErr(e1) 67 } 68 return 69 } 70 71 func seek(fd int, offset int64, whence int) (int64, syscall.Errno) { 72 var newoffset int64 73 offsetLow := uint32(offset & 0xffffffff) 74 offsetHigh := uint32((offset >> 32) & 0xffffffff) 75 _, _, err := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offsetHigh), uintptr(offsetLow), uintptr(unsafe.Pointer(&newoffset)), uintptr(whence), 0) 76 return newoffset, err 77 } 78 79 func Seek(fd int, offset int64, whence int) (newoffset int64, err error) { 80 newoffset, errno := seek(fd, offset, whence) 81 if errno != 0 { 82 return 0, errno 83 } 84 return newoffset, nil 85 } 86 87 func Fstatfs(fd int, buf *Statfs_t) (err error) { 88 _, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) 89 if e != 0 { 90 err = e 91 } 92 return 93 } 94 95 func Statfs(path string, buf *Statfs_t) (err error) { 96 pathp, err := BytePtrFromString(path) 97 if err != nil { 98 return err 99 } 100 _, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(pathp)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) 101 if e != 0 { 102 err = e 103 } 104 return 105 } 106 107 //sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error) 108 109 func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) { 110 page := uintptr(offset / 4096) 111 if offset != int64(page)*4096 { 112 return 0, EINVAL 113 } 114 return mmap2(addr, length, prot, flags, fd, page) 115 } 116 117 func setTimespec(sec, nsec int64) Timespec { 118 return Timespec{Sec: int32(sec), Nsec: int32(nsec)} 119 } 120 121 func setTimeval(sec, usec int64) Timeval { 122 return Timeval{Sec: int32(sec), Usec: int32(usec)} 123 } 124 125 type rlimit32 struct { 126 Cur uint32 127 Max uint32 128 } 129 130 //sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_UGETRLIMIT 131 132 const rlimInf32 = ^uint32(0) 133 const rlimInf64 = ^uint64(0) 134 135 func Getrlimit(resource int, rlim *Rlimit) (err error) { 136 err = Prlimit(0, resource, nil, rlim) 137 if err != ENOSYS { 138 return err 139 } 140 141 rl := rlimit32{} 142 err = getrlimit(resource, &rl) 143 if err != nil { 144 return 145 } 146 147 if rl.Cur == rlimInf32 { 148 rlim.Cur = rlimInf64 149 } else { 150 rlim.Cur = uint64(rl.Cur) 151 } 152 153 if rl.Max == rlimInf32 { 154 rlim.Max = rlimInf64 155 } else { 156 rlim.Max = uint64(rl.Max) 157 } 158 return 159 } 160 161 func (r *PtraceRegs) PC() uint32 { return r.Nip } 162 163 func (r *PtraceRegs) SetPC(pc uint32) { r.Nip = pc } 164 165 func (iov *Iovec) SetLen(length int) { 166 iov.Len = uint32(length) 167 } 168 169 func (msghdr *Msghdr) SetControllen(length int) { 170 msghdr.Controllen = uint32(length) 171 } 172 173 func (msghdr *Msghdr) SetIovlen(length int) { 174 msghdr.Iovlen = uint32(length) 175 } 176 177 func (cmsg *Cmsghdr) SetLen(length int) { 178 cmsg.Len = uint32(length) 179 } 180 181 func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) { 182 rsa.Service_name_len = uint32(length) 183 } 184 185 //sys syncFileRange2(fd int, flags int, off int64, n int64) (err error) = SYS_SYNC_FILE_RANGE2 186 187 func SyncFileRange(fd int, off int64, n int64, flags int) error { 188 // The sync_file_range and sync_file_range2 syscalls differ only in the 189 // order of their arguments. 190 return syncFileRange2(fd, flags, off, n) 191 } 192 193 //sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error) 194 195 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error { 196 cmdlineLen := len(cmdline) 197 if cmdlineLen > 0 { 198 // Account for the additional NULL byte added by 199 // BytePtrFromString in kexecFileLoad. The kexec_file_load 200 // syscall expects a NULL-terminated string. 201 cmdlineLen++ 202 } 203 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags) 204 }