syscall_linux_ppc.go (7815B)
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 // +build linux,ppc 7 8 package unix 9 10 import ( 11 "syscall" 12 "unsafe" 13 ) 14 15 //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) 16 //sys Fchown(fd int, uid int, gid int) (err error) 17 //sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64 18 //sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64 19 //sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64 20 //sysnb Getegid() (egid int) 21 //sysnb Geteuid() (euid int) 22 //sysnb Getgid() (gid int) 23 //sysnb Getuid() (uid int) 24 //sys Ioperm(from int, num int, on int) (err error) 25 //sys Iopl(level int) (err error) 26 //sys Lchown(path string, uid int, gid int) (err error) 27 //sys Listen(s int, n int) (err error) 28 //sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64 29 //sys Pause() (err error) 30 //sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 31 //sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 32 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) 33 //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT 34 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64 35 //sys setfsgid(gid int) (prev int, err error) 36 //sys setfsuid(uid int) (prev int, err error) 37 //sysnb Setregid(rgid int, egid int) (err error) 38 //sysnb Setresgid(rgid int, egid int, sgid int) (err error) 39 //sysnb Setresuid(ruid int, euid int, suid int) (err error) 40 //sysnb Setreuid(ruid int, euid int) (err error) 41 //sys Shutdown(fd int, how int) (err error) 42 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error) 43 //sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64 44 //sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64 45 //sys Ustat(dev int, ubuf *Ustat_t) (err error) 46 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) 47 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 48 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 49 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 50 //sysnb setgroups(n int, list *_Gid_t) (err error) 51 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 52 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 53 //sysnb socket(domain int, typ int, proto int) (fd int, err error) 54 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 55 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 56 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 57 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 58 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 59 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 60 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 61 62 //sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) 63 //sysnb Gettimeofday(tv *Timeval) (err error) 64 //sysnb Time(t *Time_t) (tt Time_t, err error) 65 //sys Utime(path string, buf *Utimbuf) (err error) 66 //sys utimes(path string, times *[2]Timeval) (err error) 67 68 func Fadvise(fd int, offset int64, length int64, advice int) (err error) { 69 _, _, e1 := Syscall6(SYS_FADVISE64_64, uintptr(fd), uintptr(advice), uintptr(offset>>32), uintptr(offset), uintptr(length>>32), uintptr(length)) 70 if e1 != 0 { 71 err = errnoErr(e1) 72 } 73 return 74 } 75 76 func seek(fd int, offset int64, whence int) (int64, syscall.Errno) { 77 var newoffset int64 78 offsetLow := uint32(offset & 0xffffffff) 79 offsetHigh := uint32((offset >> 32) & 0xffffffff) 80 _, _, err := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offsetHigh), uintptr(offsetLow), uintptr(unsafe.Pointer(&newoffset)), uintptr(whence), 0) 81 return newoffset, err 82 } 83 84 func Seek(fd int, offset int64, whence int) (newoffset int64, err error) { 85 newoffset, errno := seek(fd, offset, whence) 86 if errno != 0 { 87 return 0, errno 88 } 89 return newoffset, nil 90 } 91 92 func Fstatfs(fd int, buf *Statfs_t) (err error) { 93 _, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) 94 if e != 0 { 95 err = e 96 } 97 return 98 } 99 100 func Statfs(path string, buf *Statfs_t) (err error) { 101 pathp, err := BytePtrFromString(path) 102 if err != nil { 103 return err 104 } 105 _, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(pathp)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) 106 if e != 0 { 107 err = e 108 } 109 return 110 } 111 112 //sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error) 113 114 func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) { 115 page := uintptr(offset / 4096) 116 if offset != int64(page)*4096 { 117 return 0, EINVAL 118 } 119 return mmap2(addr, length, prot, flags, fd, page) 120 } 121 122 func setTimespec(sec, nsec int64) Timespec { 123 return Timespec{Sec: int32(sec), Nsec: int32(nsec)} 124 } 125 126 func setTimeval(sec, usec int64) Timeval { 127 return Timeval{Sec: int32(sec), Usec: int32(usec)} 128 } 129 130 type rlimit32 struct { 131 Cur uint32 132 Max uint32 133 } 134 135 //sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_UGETRLIMIT 136 137 const rlimInf32 = ^uint32(0) 138 const rlimInf64 = ^uint64(0) 139 140 func Getrlimit(resource int, rlim *Rlimit) (err error) { 141 err = Prlimit(0, resource, nil, rlim) 142 if err != ENOSYS { 143 return err 144 } 145 146 rl := rlimit32{} 147 err = getrlimit(resource, &rl) 148 if err != nil { 149 return 150 } 151 152 if rl.Cur == rlimInf32 { 153 rlim.Cur = rlimInf64 154 } else { 155 rlim.Cur = uint64(rl.Cur) 156 } 157 158 if rl.Max == rlimInf32 { 159 rlim.Max = rlimInf64 160 } else { 161 rlim.Max = uint64(rl.Max) 162 } 163 return 164 } 165 166 //sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT 167 168 func Setrlimit(resource int, rlim *Rlimit) (err error) { 169 err = Prlimit(0, resource, rlim, nil) 170 if err != ENOSYS { 171 return err 172 } 173 174 rl := rlimit32{} 175 if rlim.Cur == rlimInf64 { 176 rl.Cur = rlimInf32 177 } else if rlim.Cur < uint64(rlimInf32) { 178 rl.Cur = uint32(rlim.Cur) 179 } else { 180 return EINVAL 181 } 182 if rlim.Max == rlimInf64 { 183 rl.Max = rlimInf32 184 } else if rlim.Max < uint64(rlimInf32) { 185 rl.Max = uint32(rlim.Max) 186 } else { 187 return EINVAL 188 } 189 190 return setrlimit(resource, &rl) 191 } 192 193 func (r *PtraceRegs) PC() uint32 { return r.Nip } 194 195 func (r *PtraceRegs) SetPC(pc uint32) { r.Nip = pc } 196 197 func (iov *Iovec) SetLen(length int) { 198 iov.Len = uint32(length) 199 } 200 201 func (msghdr *Msghdr) SetControllen(length int) { 202 msghdr.Controllen = uint32(length) 203 } 204 205 func (msghdr *Msghdr) SetIovlen(length int) { 206 msghdr.Iovlen = uint32(length) 207 } 208 209 func (cmsg *Cmsghdr) SetLen(length int) { 210 cmsg.Len = uint32(length) 211 } 212 213 func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) { 214 rsa.Service_name_len = uint32(length) 215 } 216 217 //sys syncFileRange2(fd int, flags int, off int64, n int64) (err error) = SYS_SYNC_FILE_RANGE2 218 219 func SyncFileRange(fd int, off int64, n int64, flags int) error { 220 // The sync_file_range and sync_file_range2 syscalls differ only in the 221 // order of their arguments. 222 return syncFileRange2(fd, flags, off, n) 223 } 224 225 //sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error) 226 227 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error { 228 cmdlineLen := len(cmdline) 229 if cmdlineLen > 0 { 230 // Account for the additional NULL byte added by 231 // BytePtrFromString in kexecFileLoad. The kexec_file_load 232 // syscall expects a NULL-terminated string. 233 cmdlineLen++ 234 } 235 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags) 236 }