diff options
Diffstat (limited to 'gcc-4.8.1/libgo/go/syscall/libcall_linux.go')
| -rw-r--r-- | gcc-4.8.1/libgo/go/syscall/libcall_linux.go | 400 |
1 files changed, 0 insertions, 400 deletions
diff --git a/gcc-4.8.1/libgo/go/syscall/libcall_linux.go b/gcc-4.8.1/libgo/go/syscall/libcall_linux.go deleted file mode 100644 index 79de2f389..000000000 --- a/gcc-4.8.1/libgo/go/syscall/libcall_linux.go +++ /dev/null @@ -1,400 +0,0 @@ -// 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. - -// GNU/Linux library calls. - -package syscall - -import "unsafe" - -//sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error) -//openat(dirfd _C_int, path *byte, flags _C_int, mode Mode_t) _C_int - -//sys futimesat(dirfd int, path *byte, times *[2]Timeval) (err error) -//futimesat(dirfd _C_int, path *byte, times *[2]Timeval) _C_int -func Futimesat(dirfd int, path string, tv []Timeval) (err error) { - if len(tv) != 2 { - return EINVAL - } - return futimesat(dirfd, StringBytePtr(path), (*[2]Timeval)(unsafe.Pointer(&tv[0]))) -} - -func Futimes(fd int, tv []Timeval) (err error) { - // Believe it or not, this is the best we can do on GNU/Linux - // (and is what glibc does). - return Utimes("/proc/self/fd/"+itoa(fd), tv) -} - -//sys ptrace(request int, pid int, addr uintptr, data uintptr) (err error) -//ptrace(request _C_int, pid Pid_t, addr *byte, data *byte) _C_long - -//sysnb raw_ptrace(request int, pid int, addr *byte, data *byte) (err Errno) -//ptrace(request _C_int, pid Pid_t, addr *byte, data *byte) _C_long - -func ptracePeek(req int, pid int, addr uintptr, out []byte) (count int, err error) { - // 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 { - err = ptrace(req, pid, addr-addr%sizeofPtr, uintptr(unsafe.Pointer(&buf[0]))) - if err != nil { - return 0, err - } - 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. - err = ptrace(req, pid, addr+uintptr(n), uintptr(unsafe.Pointer(&buf[0]))) - if err != nil { - return n, err - } - copied := copy(out, buf[0:]) - n += copied - out = out[copied:] - } - - return n, nil -} - -func PtracePeekText(pid int, addr uintptr, out []byte) (count int, err error) { - return ptracePeek(PTRACE_PEEKTEXT, pid, addr, out) -} - -func PtracePeekData(pid int, addr uintptr, out []byte) (count int, err error) { - return ptracePeek(PTRACE_PEEKDATA, pid, addr, out) -} - -func ptracePoke(pokeReq int, peekReq int, pid int, addr uintptr, data []byte) (count int, err error) { - // 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 - err = ptrace(peekReq, pid, addr-addr%sizeofPtr, uintptr(unsafe.Pointer(&buf[0]))) - if err != nil { - return 0, err - } - n += copy(buf[addr%sizeofPtr:], data) - word := *((*uintptr)(unsafe.Pointer(&buf[0]))) - err = ptrace(pokeReq, pid, addr-addr%sizeofPtr, word) - if err != nil { - return 0, err - } - data = data[n:] - } - - // Interior. - for len(data) > int(sizeofPtr) { - word := *((*uintptr)(unsafe.Pointer(&data[0]))) - err = ptrace(pokeReq, pid, addr+uintptr(n), word) - if err != nil { - return n, err - } - n += int(sizeofPtr) - data = data[sizeofPtr:] - } - - // Trailing edge. - if len(data) > 0 { - var buf [sizeofPtr]byte - err = ptrace(peekReq, pid, addr+uintptr(n), uintptr(unsafe.Pointer(&buf[0]))) - if err != nil { - return n, err - } - copy(buf[0:], data) - word := *((*uintptr)(unsafe.Pointer(&buf[0]))) - err = ptrace(pokeReq, pid, addr+uintptr(n), word) - if err != nil { - return n, err - } - n += len(data) - } - - return n, nil -} - -func PtracePokeText(pid int, addr uintptr, data []byte) (count int, err error) { - return ptracePoke(PTRACE_POKETEXT, PTRACE_PEEKTEXT, pid, addr, data) -} - -func PtracePokeData(pid int, addr uintptr, data []byte) (count int, err error) { - return ptracePoke(PTRACE_POKEDATA, PTRACE_PEEKDATA, pid, addr, data) -} - -func PtraceSetOptions(pid int, options int) (err error) { - return ptrace(PTRACE_SETOPTIONS, pid, 0, uintptr(options)) -} - -func PtraceGetEventMsg(pid int) (msg uint, err error) { - var data _C_long - err = ptrace(PTRACE_GETEVENTMSG, pid, 0, uintptr(unsafe.Pointer(&data))) - msg = uint(data) - return -} - -func PtraceCont(pid int, signal int) (err error) { - return ptrace(PTRACE_CONT, pid, 0, uintptr(signal)) -} - -func PtraceSingleStep(pid int) (err error) { return ptrace(PTRACE_SINGLESTEP, pid, 0, 0) } - -func PtraceAttach(pid int) (err error) { return ptrace(PTRACE_ATTACH, pid, 0, 0) } - -func PtraceDetach(pid int) (err error) { return ptrace(PTRACE_DETACH, pid, 0, 0) } - -//sys reboot(magic1 uint, magic2 uint, cmd int, arg string) (err error) -//reboot(magic1 _C_uint, magic2 _C_uint, cmd _C_int, arg *byte) _C_int -func Reboot(cmd int) (err error) { - return reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, "") -} - -//sys accept4(fd int, sa *RawSockaddrAny, len *Socklen_t, flags int) (nfd int, err error) -//accept4(fd _C_int, sa *RawSockaddrAny, len *Socklen_t, flags _C_int) _C_int - -func Accept4(fd int, flags int) (nfd int, sa Sockaddr, err error) { - var rsa RawSockaddrAny - var len Socklen_t = SizeofSockaddrAny - nfd, err = accept4(fd, &rsa, &len, flags) - if err != nil { - return -1, nil, err - } - sa, err = anyToSockaddr(&rsa) - if err != nil { - Close(nfd) - return -1, nil, err - } - return nfd, sa, nil -} - -//sys Acct(path string) (err error) -//acct(path *byte) _C_int - -//sys Adjtimex(buf *Timex) (state int, err error) -//adjtimex(buf *Timex) _C_int - -//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) -//faccessat(dirfd _C_int, pathname *byte, mode _C_int, flags _C_int) _C_int - -//sys Fallocate(fd int, mode uint32, off int64, len int64) (err error) -//fallocate(fd _C_int, mode _C_int, offset Offset_t, len Offset_t) _C_int - -//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) -//fchmodat(dirfd _C_int, pathname *byte, mode Mode_t, flags _C_int) _C_int - -//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) -//fchownat(dirfd _C_int, path *byte, owner Uid_t, group Gid_t, flags _C_int) _C_int - -//sys Flock(fd int, how int) (err error) -//flock(fd _C_int, how _C_int) _C_int - -//sys Fstatfs(fd int, buf *Statfs_t) (err error) -//fstatfs(fd _C_int, buf *Statfs_t) _C_int - -func Gettid() (tid int) { - r1, _, _ := Syscall(SYS_GETTID, 0, 0, 0) - return int(r1) -} - -func Getdents(fd int, buf []byte) (n int, err error) { - var p *byte - if len(buf) > 0 { - p = &buf[0] - } else { - p = (*byte)(unsafe.Pointer(&_zero)) - } - Entersyscall() - s := SYS_GETDENTS64 - if s == 0 { - s = SYS_GETDENTS - } - r1, _, errno := Syscall(uintptr(s), uintptr(fd), uintptr(unsafe.Pointer(p)), uintptr(len(buf))) - n = int(r1) - if n < 0 { - err = errno - } - Exitsyscall() - return -} - -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, err error) { - 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 -} - -//sys InotifyAddWatch(fd int, pathname string, mask uint32) (watchdesc int, err error) -//inotify_add_watch(fd _C_int, pathname *byte, mask uint32) _C_int - -//sysnb InotifyInit() (fd int, err error) -//inotify_init() _C_int - -//sysnb InotifyInit1(flags int) (fd int, err error) -//inotify_init1(flags _C_int) _C_int - -//sysnb InotifyRmWatch(fd int, watchdesc uint32) (success int, err error) -//inotify_rm_watch(fd _C_int, wd uint32) _C_int - -//sys Klogctl(typ int, buf []byte) (n int, err error) -//klogctl(typ _C_int, bufp *byte, len _C_int) _C_int - -//sys Mkdirat(dirfd int, path string, mode uint32) (err error) -//mkdirat(dirfd _C_int, path *byte, mode Mode_t) _C_int - -//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) -//mknodat(dirfd _C_int, path *byte, mode Mode_t, dev _dev_t) _C_int - -//sysnb pipe2(p *[2]_C_int, flags int) (err error) -//pipe2(p *[2]_C_int, flags _C_int) _C_int -func Pipe2(p []int, flags int) (err error) { - if len(p) != 2 { - return EINVAL - } - var pp [2]_C_int - err = pipe2(&pp, flags) - p[0] = int(pp[0]) - p[1] = int(pp[1]) - return -} - -//sys PivotRoot(newroot string, putold string) (err error) -//pivot_root(newroot *byte, putold *byte) _C_int - -//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) -//renameat(olddirfd _C_int, oldpath *byte, newdirfd _C_int, newpath *byte) _C_int - -//sys sendfile(outfd int, infd int, offset *Offset_t, count int) (written int, err error) -//sendfile64(outfd _C_int, infd _C_int, offset *Offset_t, count Size_t) Ssize_t -func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { - if raceenabled { - raceReleaseMerge(unsafe.Pointer(&ioSync)) - } - var soff Offset_t - var psoff *Offset_t - if offset != nil { - psoff = &soff - } - written, err = sendfile(outfd, infd, psoff, count) - if offset != nil { - *offset = int64(soff) - } - return -} - -//sys Setfsgid(gid int) (err error) -//setfsgid(gid Gid_t) _C_int - -//sys Setfsuid(uid int) (err error) -//setfsuid(uid Uid_t) _C_int - -//sysnb Setresgid(rgid int, egid int, sgid int) (err error) -//setresgid(rgid Gid_t, egid Gid_t, sgid Gid_t) _C_int - -//sysnb Setresuid(ruid int, eguid int, suid int) (err error) -//setresuid(ruid Uid_t, euid Uid_t, suid Uid_t) _C_int - -//sys splice(rfd int, roff *_loff_t, wfd int, woff *_loff_t, len int, flags int) (n int64, err error) -//splice(rfd _C_int, roff *_loff_t, wfd _C_int, woff *_loff_t, len Size_t, flags _C_uint) Ssize_t -func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) { - var lroff _loff_t - var plroff *_loff_t - if roff != nil { - lroff = _loff_t(*roff) - plroff = &lroff - } - var lwoff _loff_t - var plwoff *_loff_t - if woff != nil { - lwoff = _loff_t(*woff) - plwoff = &lwoff - } - n, err = splice(rfd, plroff, wfd, plwoff, len, flags) - if roff != nil { - *roff = int64(lroff) - } - if woff != nil { - *woff = int64(lwoff) - } - return -} - -//sys Statfs(path string, buf *Statfs_t) (err error) -//statfs(path *byte, buf *Statfs_t) _C_int - -//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) -//sync_file_range(fd _C_int, off Offset_t, n Offset_t, flags _C_uint) _C_int - -//sysnb Sysinfo(info *Sysinfo_t) (err error) -//sysinfo(info *Sysinfo_t) _C_int - -//sys Tee(rfd int, wfd int, len int, flags int) (n int64, err error) -//tee(rfd _C_int, wfd _C_int, len Size_t, flags _C_uint) Ssize_t - -func Tgkill(tgid int, tid int, sig Signal) error { - r1, _, errno := Syscall(SYS_TGKILL, uintptr(tgid), uintptr(tid), uintptr(sig)) - if r1 < 0 { - return errno - } - return nil -} - -//sys unlinkat(dirfd int, path string, flags int) (err error) -//unlinkat(dirfd _C_int, path *byte, flags _C_int) _C_int - -func Unlinkat(dirfd int, path string) (err error) { - return unlinkat(dirfd, path, 0) -} - -//sys Unmount(target string, flags int) (err error) = SYS_UMOUNT2 -//umount2(target *byte, flags _C_int) _C_int - -//sys Unshare(flags int) (err error) -//unshare(flags _C_int) _C_int - -//sys Ustat(dev int, ubuf *Ustat_t) (err error) -//ustat(dev _dev_t, ubuf *Ustat_t) _C_int |