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syscall_linux_amd64.go (5335B)

      1 // Copyright 2009 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 amd64 && linux
      6 
      7 package unix
      8 
      9 //sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
     10 //sys	Fchown(fd int, uid int, gid int) (err error)
     11 //sys	Fstat(fd int, stat *Stat_t) (err error)
     12 //sys	Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_NEWFSTATAT
     13 //sys	Fstatfs(fd int, buf *Statfs_t) (err error)
     14 //sys	Ftruncate(fd int, length int64) (err error)
     15 //sysnb	Getegid() (egid int)
     16 //sysnb	Geteuid() (euid int)
     17 //sysnb	Getgid() (gid int)
     18 //sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
     19 //sysnb	Getuid() (uid int)
     20 //sys	Ioperm(from int, num int, on int) (err error)
     21 //sys	Iopl(level int) (err error)
     22 //sys	Lchown(path string, uid int, gid int) (err error)
     23 //sys	Listen(s int, n int) (err error)
     24 
     25 func Lstat(path string, stat *Stat_t) (err error) {
     26 	return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
     27 }
     28 
     29 //sys	MemfdSecret(flags int) (fd int, err error)
     30 //sys	Pause() (err error)
     31 //sys	pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
     32 //sys	pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
     33 //sys	Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
     34 //sys	Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
     35 
     36 func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
     37 	var ts *Timespec
     38 	if timeout != nil {
     39 		ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
     40 	}
     41 	return pselect6(nfd, r, w, e, ts, nil)
     42 }
     43 
     44 //sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
     45 //sys	setfsgid(gid int) (prev int, err error)
     46 //sys	setfsuid(uid int) (prev int, err error)
     47 //sys	Shutdown(fd int, how int) (err error)
     48 //sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
     49 
     50 func Stat(path string, stat *Stat_t) (err error) {
     51 	// Use fstatat, because Android's seccomp policy blocks stat.
     52 	return Fstatat(AT_FDCWD, path, stat, 0)
     53 }
     54 
     55 //sys	Statfs(path string, buf *Statfs_t) (err error)
     56 //sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
     57 //sys	Truncate(path string, length int64) (err error)
     58 //sys	Ustat(dev int, ubuf *Ustat_t) (err error)
     59 //sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
     60 //sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
     61 //sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
     62 //sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
     63 //sysnb	setgroups(n int, list *_Gid_t) (err error)
     64 //sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
     65 //sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
     66 //sysnb	socket(domain int, typ int, proto int) (fd int, err error)
     67 //sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
     68 //sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
     69 //sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
     70 //sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
     71 //sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
     72 //sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
     73 //sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
     74 //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
     75 
     76 //sys	futimesat(dirfd int, path string, times *[2]Timeval) (err error)
     77 
     78 func Gettimeofday(tv *Timeval) (err error) {
     79 	errno := gettimeofday(tv)
     80 	if errno != 0 {
     81 		return errno
     82 	}
     83 	return nil
     84 }
     85 
     86 func Time(t *Time_t) (tt Time_t, err error) {
     87 	var tv Timeval
     88 	errno := gettimeofday(&tv)
     89 	if errno != 0 {
     90 		return 0, errno
     91 	}
     92 	if t != nil {
     93 		*t = Time_t(tv.Sec)
     94 	}
     95 	return Time_t(tv.Sec), nil
     96 }
     97 
     98 //sys	Utime(path string, buf *Utimbuf) (err error)
     99 //sys	utimes(path string, times *[2]Timeval) (err error)
    100 
    101 func setTimespec(sec, nsec int64) Timespec {
    102 	return Timespec{Sec: sec, Nsec: nsec}
    103 }
    104 
    105 func setTimeval(sec, usec int64) Timeval {
    106 	return Timeval{Sec: sec, Usec: usec}
    107 }
    108 
    109 func (r *PtraceRegs) PC() uint64 { return r.Rip }
    110 
    111 func (r *PtraceRegs) SetPC(pc uint64) { r.Rip = pc }
    112 
    113 func (iov *Iovec) SetLen(length int) {
    114 	iov.Len = uint64(length)
    115 }
    116 
    117 func (msghdr *Msghdr) SetControllen(length int) {
    118 	msghdr.Controllen = uint64(length)
    119 }
    120 
    121 func (msghdr *Msghdr) SetIovlen(length int) {
    122 	msghdr.Iovlen = uint64(length)
    123 }
    124 
    125 func (cmsg *Cmsghdr) SetLen(length int) {
    126 	cmsg.Len = uint64(length)
    127 }
    128 
    129 func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
    130 	rsa.Service_name_len = uint64(length)
    131 }
    132 
    133 //sys	kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
    134 
    135 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
    136 	cmdlineLen := len(cmdline)
    137 	if cmdlineLen > 0 {
    138 		// Account for the additional NULL byte added by
    139 		// BytePtrFromString in kexecFileLoad. The kexec_file_load
    140 		// syscall expects a NULL-terminated string.
    141 		cmdlineLen++
    142 	}
    143 	return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
    144 }