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path: root/src/pkg/syscall/syscall_linux.go
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-rw-r--r--src/pkg/syscall/syscall_linux.go999
1 files changed, 999 insertions, 0 deletions
diff --git a/src/pkg/syscall/syscall_linux.go b/src/pkg/syscall/syscall_linux.go
new file mode 100644
index 000000000..9fc2605c4
--- /dev/null
+++ b/src/pkg/syscall/syscall_linux.go
@@ -0,0 +1,999 @@
+// 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.
+
+// Linux system calls.
+// This file is compiled as ordinary Go code,
+// but it is also input to mksyscall,
+// which parses the //sys lines and generates system call stubs.
+// Note that sometimes we use a lowercase //sys name and
+// wrap it in our own nicer implementation.
+
+package syscall
+
+import "unsafe"
+
+const OS = "linux"
+
+/*
+ * Wrapped
+ */
+
+//sys open(path string, mode int, perm uint32) (fd int, errno int)
+func Open(path string, mode int, perm uint32) (fd int, errno int) {
+ return open(path, mode|O_LARGEFILE, perm)
+}
+
+//sys openat(dirfd int, path string, flags int, mode uint32) (fd int, errno int)
+func Openat(dirfd int, path string, flags int, mode uint32) (fd int, errno int) {
+ return openat(dirfd, path, flags|O_LARGEFILE, mode)
+}
+
+//sysnb pipe(p *[2]_C_int) (errno int)
+func Pipe(p []int) (errno int) {
+ if len(p) != 2 {
+ return EINVAL
+ }
+ var pp [2]_C_int
+ errno = pipe(&pp)
+ p[0] = int(pp[0])
+ p[1] = int(pp[1])
+ return
+}
+
+//sys utimes(path string, times *[2]Timeval) (errno int)
+func Utimes(path string, tv []Timeval) (errno int) {
+ if len(tv) != 2 {
+ return EINVAL
+ }
+ return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+//sys futimesat(dirfd int, path *byte, times *[2]Timeval) (errno int)
+func Futimesat(dirfd int, path string, tv []Timeval) (errno int) {
+ if len(tv) != 2 {
+ return EINVAL
+ }
+ return futimesat(dirfd, StringBytePtr(path), (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+func Futimes(fd int, tv []Timeval) (errno int) {
+ // Believe it or not, this is the best we can do on Linux
+ // (and is what glibc does).
+ return Utimes("/proc/self/fd/"+itoa(fd), tv)
+}
+
+const ImplementsGetwd = true
+
+//sys Getcwd(buf []byte) (n int, errno int)
+func Getwd() (wd string, errno int) {
+ var buf [PathMax]byte
+ n, err := Getcwd(buf[0:])
+ if err != 0 {
+ return "", err
+ }
+ // Getcwd returns the number of bytes written to buf, including the NUL.
+ if n < 1 || n > len(buf) || buf[n-1] != 0 {
+ return "", EINVAL
+ }
+ return string(buf[0 : n-1]), 0
+}
+
+func Getgroups() (gids []int, errno int) {
+ n, err := getgroups(0, nil)
+ if err != 0 {
+ return nil, errno
+ }
+ if n == 0 {
+ return nil, 0
+ }
+
+ // Sanity check group count. Max is 1<<16 on Linux.
+ if n < 0 || n > 1<<20 {
+ return nil, EINVAL
+ }
+
+ a := make([]_Gid_t, n)
+ n, err = getgroups(n, &a[0])
+ if err != 0 {
+ return nil, errno
+ }
+ gids = make([]int, n)
+ for i, v := range a[0:n] {
+ gids[i] = int(v)
+ }
+ return
+}
+
+func Setgroups(gids []int) (errno int) {
+ if len(gids) == 0 {
+ return setgroups(0, nil)
+ }
+
+ a := make([]_Gid_t, len(gids))
+ for i, v := range gids {
+ a[i] = _Gid_t(v)
+ }
+ return setgroups(len(a), &a[0])
+}
+
+type WaitStatus uint32
+
+// Wait status is 7 bits at bottom, either 0 (exited),
+// 0x7F (stopped), or a signal number that caused an exit.
+// The 0x80 bit is whether there was a core dump.
+// An extra number (exit code, signal causing a stop)
+// is in the high bits. At least that's the idea.
+// There are various irregularities. For example, the
+// "continued" status is 0xFFFF, distinguishing itself
+// from stopped via the core dump bit.
+
+const (
+ mask = 0x7F
+ core = 0x80
+ exited = 0x00
+ stopped = 0x7F
+ shift = 8
+)
+
+func (w WaitStatus) Exited() bool { return w&mask == exited }
+
+func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != exited }
+
+func (w WaitStatus) Stopped() bool { return w&0xFF == stopped }
+
+func (w WaitStatus) Continued() bool { return w == 0xFFFF }
+
+func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
+
+func (w WaitStatus) ExitStatus() int {
+ if !w.Exited() {
+ return -1
+ }
+ return int(w>>shift) & 0xFF
+}
+
+func (w WaitStatus) Signal() int {
+ if !w.Signaled() {
+ return -1
+ }
+ return int(w & mask)
+}
+
+func (w WaitStatus) StopSignal() int {
+ if !w.Stopped() {
+ return -1
+ }
+ return int(w>>shift) & 0xFF
+}
+
+func (w WaitStatus) TrapCause() int {
+ if w.StopSignal() != SIGTRAP {
+ return -1
+ }
+ return int(w>>shift) >> 8
+}
+
+//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
+func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
+ var status _C_int
+ wpid, errno = wait4(pid, &status, options, rusage)
+ if wstatus != nil {
+ *wstatus = WaitStatus(status)
+ }
+ return
+}
+
+func Sleep(nsec int64) (errno int) {
+ tv := NsecToTimeval(nsec)
+ _, err := Select(0, nil, nil, nil, &tv)
+ return err
+}
+
+// For testing: clients can set this flag to force
+// creation of IPv6 sockets to return EAFNOSUPPORT.
+var SocketDisableIPv6 bool
+
+type Sockaddr interface {
+ sockaddr() (ptr uintptr, len _Socklen, errno int) // lowercase; only we can define Sockaddrs
+}
+
+type SockaddrInet4 struct {
+ Port int
+ Addr [4]byte
+ raw RawSockaddrInet4
+}
+
+func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
+ if sa.Port < 0 || sa.Port > 0xFFFF {
+ return 0, 0, EINVAL
+ }
+ sa.raw.Family = AF_INET
+ p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+ p[0] = byte(sa.Port >> 8)
+ p[1] = byte(sa.Port)
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i]
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), SizeofSockaddrInet4, 0
+}
+
+type SockaddrInet6 struct {
+ Port int
+ ZoneId uint32
+ Addr [16]byte
+ raw RawSockaddrInet6
+}
+
+func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
+ if sa.Port < 0 || sa.Port > 0xFFFF {
+ return 0, 0, EINVAL
+ }
+ sa.raw.Family = AF_INET6
+ p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+ p[0] = byte(sa.Port >> 8)
+ p[1] = byte(sa.Port)
+ sa.raw.Scope_id = sa.ZoneId
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i]
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), SizeofSockaddrInet6, 0
+}
+
+type SockaddrUnix struct {
+ Name string
+ raw RawSockaddrUnix
+}
+
+func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
+ name := sa.Name
+ n := len(name)
+ if n >= len(sa.raw.Path) || n == 0 {
+ return 0, 0, EINVAL
+ }
+ sa.raw.Family = AF_UNIX
+ for i := 0; i < n; i++ {
+ sa.raw.Path[i] = int8(name[i])
+ }
+ // length is family (uint16), name, NUL.
+ sl := 2 + _Socklen(n) + 1
+ if sa.raw.Path[0] == '@' {
+ sa.raw.Path[0] = 0
+ // Don't count trailing NUL for abstract address.
+ sl--
+ }
+
+ return uintptr(unsafe.Pointer(&sa.raw)), sl, 0
+}
+
+type SockaddrLinklayer struct {
+ Protocol uint16
+ Ifindex int
+ Hatype uint16
+ Pkttype uint8
+ Halen uint8
+ Addr [8]byte
+ raw RawSockaddrLinklayer
+}
+
+func (sa *SockaddrLinklayer) sockaddr() (uintptr, _Socklen, int) {
+ if sa.Ifindex < 0 || sa.Ifindex > 0x7fffffff {
+ return 0, 0, EINVAL
+ }
+ sa.raw.Family = AF_PACKET
+ sa.raw.Protocol = sa.Protocol
+ sa.raw.Ifindex = int32(sa.Ifindex)
+ sa.raw.Hatype = sa.Hatype
+ sa.raw.Pkttype = sa.Pkttype
+ sa.raw.Halen = sa.Halen
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i]
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), SizeofSockaddrLinklayer, 0
+}
+
+type SockaddrNetlink struct {
+ Family uint16
+ Pad uint16
+ Pid uint32
+ Groups uint32
+ raw RawSockaddrNetlink
+}
+
+func (sa *SockaddrNetlink) sockaddr() (uintptr, _Socklen, int) {
+ sa.raw.Family = AF_NETLINK
+ sa.raw.Pad = sa.Pad
+ sa.raw.Pid = sa.Pid
+ sa.raw.Groups = sa.Groups
+ return uintptr(unsafe.Pointer(&sa.raw)), SizeofSockaddrNetlink, 0
+}
+
+func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
+ switch rsa.Addr.Family {
+ case AF_NETLINK:
+ pp := (*RawSockaddrNetlink)(unsafe.Pointer(rsa))
+ sa := new(SockaddrNetlink)
+ sa.Family = pp.Family
+ sa.Pad = pp.Pad
+ sa.Pid = pp.Pid
+ sa.Groups = pp.Groups
+ return sa, 0
+
+ case AF_PACKET:
+ pp := (*RawSockaddrLinklayer)(unsafe.Pointer(rsa))
+ sa := new(SockaddrLinklayer)
+ sa.Protocol = pp.Protocol
+ sa.Ifindex = int(pp.Ifindex)
+ sa.Hatype = pp.Hatype
+ sa.Pkttype = pp.Pkttype
+ sa.Halen = pp.Halen
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i]
+ }
+ return sa, 0
+
+ case AF_UNIX:
+ pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
+ sa := new(SockaddrUnix)
+ if pp.Path[0] == 0 {
+ // "Abstract" Unix domain socket.
+ // Rewrite leading NUL as @ for textual display.
+ // (This is the standard convention.)
+ // Not friendly to overwrite in place,
+ // but the callers below don't care.
+ pp.Path[0] = '@'
+ }
+
+ // Assume path ends at NUL.
+ // This is not technically the Linux semantics for
+ // abstract Unix domain sockets--they are supposed
+ // to be uninterpreted fixed-size binary blobs--but
+ // everyone uses this convention.
+ n := 0
+ for n < len(pp.Path) && pp.Path[n] != 0 {
+ n++
+ }
+ bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+ sa.Name = string(bytes)
+ return sa, 0
+
+ case AF_INET:
+ pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
+ sa := new(SockaddrInet4)
+ p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+ sa.Port = int(p[0])<<8 + int(p[1])
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i]
+ }
+ return sa, 0
+
+ case AF_INET6:
+ pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
+ sa := new(SockaddrInet6)
+ p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+ sa.Port = int(p[0])<<8 + int(p[1])
+ sa.ZoneId = pp.Scope_id
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i]
+ }
+ return sa, 0
+ }
+ return nil, EAFNOSUPPORT
+}
+
+func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ var len _Socklen = SizeofSockaddrAny
+ nfd, errno = accept(fd, &rsa, &len)
+ if errno != 0 {
+ return
+ }
+ sa, errno = anyToSockaddr(&rsa)
+ if errno != 0 {
+ Close(nfd)
+ nfd = 0
+ }
+ return
+}
+
+func Getsockname(fd int) (sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ var len _Socklen = SizeofSockaddrAny
+ if errno = getsockname(fd, &rsa, &len); errno != 0 {
+ return
+ }
+ return anyToSockaddr(&rsa)
+}
+
+func Getpeername(fd int) (sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ var len _Socklen = SizeofSockaddrAny
+ if errno = getpeername(fd, &rsa, &len); errno != 0 {
+ return
+ }
+ return anyToSockaddr(&rsa)
+}
+
+func Bind(fd int, sa Sockaddr) (errno int) {
+ ptr, n, err := sa.sockaddr()
+ if err != 0 {
+ return err
+ }
+ return bind(fd, ptr, n)
+}
+
+func Connect(fd int, sa Sockaddr) (errno int) {
+ ptr, n, err := sa.sockaddr()
+ if err != 0 {
+ return err
+ }
+ return connect(fd, ptr, n)
+}
+
+func Socket(domain, typ, proto int) (fd, errno int) {
+ if domain == AF_INET6 && SocketDisableIPv6 {
+ return -1, EAFNOSUPPORT
+ }
+ fd, errno = socket(domain, typ, proto)
+ return
+}
+
+func Socketpair(domain, typ, proto int) (fd [2]int, errno int) {
+ errno = socketpair(domain, typ, proto, &fd)
+ return
+}
+
+func GetsockoptInt(fd, level, opt int) (value, errno int) {
+ var n int32
+ vallen := _Socklen(4)
+ errno = getsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), &vallen)
+ return int(n), errno
+}
+
+func SetsockoptInt(fd, level, opt int, value int) (errno int) {
+ var n = int32(value)
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
+}
+
+func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
+}
+
+func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
+}
+
+func SetsockoptIPMreq(fd, level, opt int, mreq *IPMreq) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(mreq)), unsafe.Sizeof(*mreq))
+}
+
+func SetsockoptIPv6Mreq(fd, level, opt int, mreq *IPv6Mreq) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(mreq)), unsafe.Sizeof(*mreq))
+}
+
+func SetsockoptString(fd, level, opt int, s string) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), uintptr(len(s)))
+}
+
+func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ var len _Socklen = SizeofSockaddrAny
+ if n, errno = recvfrom(fd, p, flags, &rsa, &len); errno != 0 {
+ return
+ }
+ from, errno = anyToSockaddr(&rsa)
+ return
+}
+
+func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
+ ptr, n, err := to.sockaddr()
+ if err != 0 {
+ return err
+ }
+ return sendto(fd, p, flags, ptr, n)
+}
+
+func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, errno int) {
+ var msg Msghdr
+ var rsa RawSockaddrAny
+ msg.Name = (*byte)(unsafe.Pointer(&rsa))
+ msg.Namelen = uint32(SizeofSockaddrAny)
+ var iov Iovec
+ if len(p) > 0 {
+ iov.Base = (*byte)(unsafe.Pointer(&p[0]))
+ iov.SetLen(len(p))
+ }
+ var dummy byte
+ if len(oob) > 0 {
+ // receive at least one normal byte
+ if len(p) == 0 {
+ iov.Base = &dummy
+ iov.SetLen(1)
+ }
+ msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
+ msg.SetControllen(len(oob))
+ }
+ msg.Iov = &iov
+ msg.Iovlen = 1
+ if n, errno = recvmsg(fd, &msg, flags); errno != 0 {
+ return
+ }
+ oobn = int(msg.Controllen)
+ recvflags = int(msg.Flags)
+ // source address is only specified if the socket is unconnected
+ if rsa.Addr.Family != AF_UNSPEC {
+ from, errno = anyToSockaddr(&rsa)
+ }
+ return
+}
+
+func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (errno int) {
+ var ptr uintptr
+ var salen _Socklen
+ if to != nil {
+ var err int
+ ptr, salen, err = to.sockaddr()
+ if err != 0 {
+ return err
+ }
+ }
+ var msg Msghdr
+ msg.Name = (*byte)(unsafe.Pointer(ptr))
+ msg.Namelen = uint32(salen)
+ var iov Iovec
+ if len(p) > 0 {
+ iov.Base = (*byte)(unsafe.Pointer(&p[0]))
+ iov.SetLen(len(p))
+ }
+ var dummy byte
+ if len(oob) > 0 {
+ // send at least one normal byte
+ if len(p) == 0 {
+ iov.Base = &dummy
+ iov.SetLen(1)
+ }
+ msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
+ msg.SetControllen(len(oob))
+ }
+ msg.Iov = &iov
+ msg.Iovlen = 1
+ if errno = sendmsg(fd, &msg, flags); errno != 0 {
+ return
+ }
+ return
+}
+
+// BindToDevice binds the socket associated with fd to device.
+func BindToDevice(fd int, device string) (errno int) {
+ return SetsockoptString(fd, SOL_SOCKET, SO_BINDTODEVICE, device)
+}
+
+//sys ptrace(request int, pid int, addr uintptr, data uintptr) (errno int)
+
+func ptracePeek(req int, pid int, addr uintptr, out []byte) (count int, errno int) {
+ // The peek requests are machine-size oriented, so we wrap it
+ // to retrieve arbitrary-length data.
+
+ // The ptrace syscall differs from glibc's ptrace.
+ // Peeks returns the word in *data, not as the return value.
+
+ var buf [sizeofPtr]byte
+
+ // Leading edge. PEEKTEXT/PEEKDATA don't require aligned
+ // access (PEEKUSER warns that it might), but if we don't
+ // align our reads, we might straddle an unmapped page
+ // boundary and not get the bytes leading up to the page
+ // boundary.
+ n := 0
+ if addr%sizeofPtr != 0 {
+ errno = ptrace(req, pid, addr-addr%sizeofPtr, uintptr(unsafe.Pointer(&buf[0])))
+ if errno != 0 {
+ return 0, errno
+ }
+ n += copy(out, buf[addr%sizeofPtr:])
+ out = out[n:]
+ }
+
+ // Remainder.
+ for len(out) > 0 {
+ // We use an internal buffer to gaurantee alignment.
+ // It's not documented if this is necessary, but we're paranoid.
+ errno = ptrace(req, pid, addr+uintptr(n), uintptr(unsafe.Pointer(&buf[0])))
+ if errno != 0 {
+ return n, errno
+ }
+ copied := copy(out, buf[0:])
+ n += copied
+ out = out[copied:]
+ }
+
+ return n, 0
+}
+
+func PtracePeekText(pid int, addr uintptr, out []byte) (count int, errno int) {
+ return ptracePeek(PTRACE_PEEKTEXT, pid, addr, out)
+}
+
+func PtracePeekData(pid int, addr uintptr, out []byte) (count int, errno int) {
+ return ptracePeek(PTRACE_PEEKDATA, pid, addr, out)
+}
+
+func ptracePoke(pokeReq int, peekReq int, pid int, addr uintptr, data []byte) (count int, errno int) {
+ // As for ptracePeek, we need to align our accesses to deal
+ // with the possibility of straddling an invalid page.
+
+ // Leading edge.
+ n := 0
+ if addr%sizeofPtr != 0 {
+ var buf [sizeofPtr]byte
+ errno = ptrace(peekReq, pid, addr-addr%sizeofPtr, uintptr(unsafe.Pointer(&buf[0])))
+ if errno != 0 {
+ return 0, errno
+ }
+ n += copy(buf[addr%sizeofPtr:], data)
+ word := *((*uintptr)(unsafe.Pointer(&buf[0])))
+ errno = ptrace(pokeReq, pid, addr-addr%sizeofPtr, word)
+ if errno != 0 {
+ return 0, errno
+ }
+ data = data[n:]
+ }
+
+ // Interior.
+ for len(data) > sizeofPtr {
+ word := *((*uintptr)(unsafe.Pointer(&data[0])))
+ errno = ptrace(pokeReq, pid, addr+uintptr(n), word)
+ if errno != 0 {
+ return n, errno
+ }
+ n += sizeofPtr
+ data = data[sizeofPtr:]
+ }
+
+ // Trailing edge.
+ if len(data) > 0 {
+ var buf [sizeofPtr]byte
+ errno = ptrace(peekReq, pid, addr+uintptr(n), uintptr(unsafe.Pointer(&buf[0])))
+ if errno != 0 {
+ return n, errno
+ }
+ copy(buf[0:], data)
+ word := *((*uintptr)(unsafe.Pointer(&buf[0])))
+ errno = ptrace(pokeReq, pid, addr+uintptr(n), word)
+ if errno != 0 {
+ return n, errno
+ }
+ n += len(data)
+ }
+
+ return n, 0
+}
+
+func PtracePokeText(pid int, addr uintptr, data []byte) (count int, errno int) {
+ return ptracePoke(PTRACE_POKETEXT, PTRACE_PEEKTEXT, pid, addr, data)
+}
+
+func PtracePokeData(pid int, addr uintptr, data []byte) (count int, errno int) {
+ return ptracePoke(PTRACE_POKEDATA, PTRACE_PEEKDATA, pid, addr, data)
+}
+
+func PtraceGetRegs(pid int, regsout *PtraceRegs) (errno int) {
+ return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
+}
+
+func PtraceSetRegs(pid int, regs *PtraceRegs) (errno int) {
+ return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
+}
+
+func PtraceSetOptions(pid int, options int) (errno int) {
+ return ptrace(PTRACE_SETOPTIONS, pid, 0, uintptr(options))
+}
+
+func PtraceGetEventMsg(pid int) (msg uint, errno int) {
+ var data _C_long
+ errno = ptrace(PTRACE_GETEVENTMSG, pid, 0, uintptr(unsafe.Pointer(&data)))
+ msg = uint(data)
+ return
+}
+
+func PtraceCont(pid int, signal int) (errno int) {
+ return ptrace(PTRACE_CONT, pid, 0, uintptr(signal))
+}
+
+func PtraceSingleStep(pid int) (errno int) { return ptrace(PTRACE_SINGLESTEP, pid, 0, 0) }
+
+func PtraceAttach(pid int) (errno int) { return ptrace(PTRACE_ATTACH, pid, 0, 0) }
+
+func PtraceDetach(pid int) (errno int) { return ptrace(PTRACE_DETACH, pid, 0, 0) }
+
+//sys reboot(magic1 uint, magic2 uint, cmd int, arg string) (errno int)
+func Reboot(cmd int) (errno int) {
+ return reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, "")
+}
+
+func clen(n []byte) int {
+ for i := 0; i < len(n); i++ {
+ if n[i] == 0 {
+ return i
+ }
+ }
+ return len(n)
+}
+
+func ReadDirent(fd int, buf []byte) (n int, errno int) {
+ return Getdents(fd, buf)
+}
+
+func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
+ origlen := len(buf)
+ count = 0
+ for max != 0 && len(buf) > 0 {
+ dirent := (*Dirent)(unsafe.Pointer(&buf[0]))
+ buf = buf[dirent.Reclen:]
+ if dirent.Ino == 0 { // File absent in directory.
+ continue
+ }
+ bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0]))
+ var name = string(bytes[0:clen(bytes[:])])
+ if name == "." || name == ".." { // Useless names
+ continue
+ }
+ max--
+ count++
+ names = append(names, name)
+ }
+ return origlen - len(buf), count, names
+}
+
+// Sendto
+// Recvfrom
+// Socketpair
+
+/*
+ * Direct access
+ */
+//sys Access(path string, mode uint32) (errno int)
+//sys Acct(path string) (errno int)
+//sys Adjtimex(buf *Timex) (state int, errno int)
+//sys Chdir(path string) (errno int)
+//sys Chmod(path string, mode uint32) (errno int)
+//sys Chroot(path string) (errno int)
+//sys Close(fd int) (errno int)
+//sys Creat(path string, mode uint32) (fd int, errno int)
+//sysnb Dup(oldfd int) (fd int, errno int)
+//sysnb Dup2(oldfd int, newfd int) (fd int, errno int)
+//sysnb EpollCreate(size int) (fd int, errno int)
+//sysnb EpollCtl(epfd int, op int, fd int, event *EpollEvent) (errno int)
+//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, errno int)
+//sys Exit(code int) = SYS_EXIT_GROUP
+//sys Faccessat(dirfd int, path string, mode uint32, flags int) (errno int)
+//sys Fallocate(fd int, mode uint32, off int64, len int64) (errno int)
+//sys Fchdir(fd int) (errno int)
+//sys Fchmod(fd int, mode uint32) (errno int)
+//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (errno int)
+//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (errno int)
+//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
+//sys Fdatasync(fd int) (errno int)
+//sys Flock(fd int, how int) (errno int)
+//sys Fsync(fd int) (errno int)
+//sys Getdents(fd int, buf []byte) (n int, errno int) = SYS_GETDENTS64
+//sysnb Getpgid(pid int) (pgid int, errno int)
+//sysnb Getpgrp() (pid int)
+//sysnb Getpid() (pid int)
+//sysnb Getppid() (ppid int)
+//sysnb Getrlimit(resource int, rlim *Rlimit) (errno int)
+//sysnb Getrusage(who int, rusage *Rusage) (errno int)
+//sysnb Gettid() (tid int)
+//sys InotifyAddWatch(fd int, pathname string, mask uint32) (watchdesc int, errno int)
+//sysnb InotifyInit() (fd int, errno int)
+//sysnb InotifyInit1(flags int) (fd int, errno int)
+//sysnb InotifyRmWatch(fd int, watchdesc uint32) (success int, errno int)
+//sysnb Kill(pid int, sig int) (errno int)
+//sys Klogctl(typ int, buf []byte) (n int, errno int) = SYS_SYSLOG
+//sys Link(oldpath string, newpath string) (errno int)
+//sys Mkdir(path string, mode uint32) (errno int)
+//sys Mkdirat(dirfd int, path string, mode uint32) (errno int)
+//sys Mknod(path string, mode uint32, dev int) (errno int)
+//sys Mknodat(dirfd int, path string, mode uint32, dev int) (errno int)
+//sys Mount(source string, target string, fstype string, flags int, data string) (errno int)
+//sys Nanosleep(time *Timespec, leftover *Timespec) (errno int)
+//sys Pause() (errno int)
+//sys PivotRoot(newroot string, putold string) (errno int) = SYS_PIVOT_ROOT
+//sys Read(fd int, p []byte) (n int, errno int)
+//sys Readlink(path string, buf []byte) (n int, errno int)
+//sys Rename(oldpath string, newpath string) (errno int)
+//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (errno int)
+//sys Rmdir(path string) (errno int)
+//sys Setdomainname(p []byte) (errno int)
+//sys Sethostname(p []byte) (errno int)
+//sysnb Setpgid(pid int, pgid int) (errno int)
+//sysnb Setrlimit(resource int, rlim *Rlimit) (errno int)
+//sysnb Setsid() (pid int, errno int)
+//sysnb Settimeofday(tv *Timeval) (errno int)
+//sysnb Setuid(uid int) (errno int)
+//sys Symlink(oldpath string, newpath string) (errno int)
+//sys Sync()
+//sysnb Sysinfo(info *Sysinfo_t) (errno int)
+//sys Tee(rfd int, wfd int, len int, flags int) (n int64, errno int)
+//sysnb Tgkill(tgid int, tid int, sig int) (errno int)
+//sysnb Times(tms *Tms) (ticks uintptr, errno int)
+//sysnb Umask(mask int) (oldmask int)
+//sysnb Uname(buf *Utsname) (errno int)
+//sys Unlink(path string) (errno int)
+//sys Unlinkat(dirfd int, path string) (errno int)
+//sys Unmount(target string, flags int) (errno int) = SYS_UMOUNT2
+//sys Unshare(flags int) (errno int)
+//sys Ustat(dev int, ubuf *Ustat_t) (errno int)
+//sys Utime(path string, buf *Utimbuf) (errno int)
+//sys Write(fd int, p []byte) (n int, errno int)
+//sys exitThread(code int) (errno int) = SYS_EXIT
+//sys read(fd int, p *byte, np int) (n int, errno int)
+//sys write(fd int, p *byte, np int) (n int, errno int)
+
+// mmap varies by architecture; see syscall_linux_*.go.
+//sys munmap(addr uintptr, length uintptr) (errno int)
+
+var mapper = &mmapper{
+ active: make(map[*byte][]byte),
+ mmap: mmap,
+ munmap: munmap,
+}
+
+func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, errno int) {
+ return mapper.Mmap(fd, offset, length, prot, flags)
+}
+
+func Munmap(b []byte) (errno int) {
+ return mapper.Munmap(b)
+}
+
+//sys Madvise(b []byte, advice int) (errno int)
+//sys Mprotect(b []byte, prot int) (errno int)
+//sys Mlock(b []byte) (errno int)
+//sys Munlock(b []byte) (errno int)
+//sys Mlockall(flags int) (errno int)
+//sys Munlockall() (errno int)
+
+/*
+ * Unimplemented
+ */
+// AddKey
+// AfsSyscall
+// Alarm
+// ArchPrctl
+// Brk
+// Capget
+// Capset
+// ClockGetres
+// ClockGettime
+// ClockNanosleep
+// ClockSettime
+// Clone
+// CreateModule
+// DeleteModule
+// EpollCtlOld
+// EpollPwait
+// EpollWaitOld
+// Eventfd
+// Execve
+// Fadvise64
+// Fgetxattr
+// Flistxattr
+// Fork
+// Fremovexattr
+// Fsetxattr
+// Futex
+// GetKernelSyms
+// GetMempolicy
+// GetRobustList
+// GetThreadArea
+// Getitimer
+// Getpmsg
+// Getpriority
+// Getxattr
+// IoCancel
+// IoDestroy
+// IoGetevents
+// IoSetup
+// IoSubmit
+// Ioctl
+// IoprioGet
+// IoprioSet
+// KexecLoad
+// Keyctl
+// Lgetxattr
+// Listxattr
+// Llistxattr
+// LookupDcookie
+// Lremovexattr
+// Lsetxattr
+// Mbind
+// MigratePages
+// Mincore
+// ModifyLdt
+// Mount
+// MovePages
+// Mprotect
+// MqGetsetattr
+// MqNotify
+// MqOpen
+// MqTimedreceive
+// MqTimedsend
+// MqUnlink
+// Mremap
+// Msgctl
+// Msgget
+// Msgrcv
+// Msgsnd
+// Msync
+// Newfstatat
+// Nfsservctl
+// Personality
+// Poll
+// Ppoll
+// Prctl
+// Pselect6
+// Ptrace
+// Putpmsg
+// QueryModule
+// Quotactl
+// Readahead
+// Readv
+// RemapFilePages
+// Removexattr
+// RequestKey
+// RestartSyscall
+// RtSigaction
+// RtSigpending
+// RtSigprocmask
+// RtSigqueueinfo
+// RtSigreturn
+// RtSigsuspend
+// RtSigtimedwait
+// SchedGetPriorityMax
+// SchedGetPriorityMin
+// SchedGetaffinity
+// SchedGetparam
+// SchedGetscheduler
+// SchedRrGetInterval
+// SchedSetaffinity
+// SchedSetparam
+// SchedYield
+// Security
+// Semctl
+// Semget
+// Semop
+// Semtimedop
+// SetMempolicy
+// SetRobustList
+// SetThreadArea
+// SetTidAddress
+// Setpriority
+// Setxattr
+// Shmat
+// Shmctl
+// Shmdt
+// Shmget
+// Sigaltstack
+// Signalfd
+// Swapoff
+// Swapon
+// Sysfs
+// TimerCreate
+// TimerDelete
+// TimerGetoverrun
+// TimerGettime
+// TimerSettime
+// Timerfd
+// Tkill (obsolete)
+// Tuxcall
+// Umount2
+// Uselib
+// Utimensat
+// Vfork
+// Vhangup
+// Vmsplice
+// Vserver
+// Waitid
+// Writev
+// _Sysctl
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-27 11:44:44 +0000