Implement new syscall package.

Calls to library functions now use entersyscall and
exitsyscall as appropriate.  This is a first step toward
multiplexing goroutines onto threads.

From-SVN: r180345

1 files changed, 0 insertions, 429 deletions

diff --git a/libgo/syscalls/sysfile_posix.go b/libgo/syscalls/sysfile_posix.go
deleted file mode 100644
index a16ba4a..0000000
--- a/libgo/syscalls/sysfile_posix.go
+++ /dev/null
@@ -1,429 +0,0 @@
-// sysfile_posix.go -- POSIX File handling.
-
-// Copyright 2010 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.
-
-// Support for basic Unix file operations.  This file simply
-// translates from Go data types to Unix data types, and handles
-// errno.  FIXME: This could probably be done mechanically.
-
-package syscall
-
-import "unsafe"
-
-func libc_open(name *byte, mode int, perm Mode_t) int __asm__ ("open");
-func libc_close(fd int) int __asm__ ("close");
-func libc_read(fd int, buf *byte, count Size_t) Ssize_t __asm__ ("read");
-func libc_write(fd int, buf *byte, count Size_t) Ssize_t __asm__ ("write");
-func libc_fsync(fd int) int __asm__ ("fsync")
-func libc_pipe(filedes *int) int __asm__("pipe");
-func libc_unlink(name *byte) int __asm__ ("unlink");
-func libc_rmdir(name *byte) int __asm__ ("rmdir");
-func libc_fcntl(fd int, cmd int, arg int) int __asm__ ("fcntl");
-func libc_mkdir(name *byte, perm Mode_t) int __asm__ ("mkdir");
-func libc_dup(int) int __asm__ ("dup")
-func libc_gettimeofday(tv *Timeval, tz *byte) int __asm__ ("gettimeofday");
-func libc_select(int, *byte, *byte, *byte, *Timeval) int __asm__ ("select");
-func libc_chdir(name *byte) int __asm__ ("chdir");
-func libc_fchdir(int) int __asm__ ("fchdir");
-func libc_getcwd(*byte, Size_t) *byte __asm__ ("getcwd");
-func libc_link(oldpath *byte, newpath *byte) int __asm__ ("link");
-func libc_symlink(oldpath *byte, newpath *byte) int __asm__ ("symlink");
-func libc_readlink(*byte, *byte, Size_t) Ssize_t  __asm__ ("readlink");
-func libc_rename(oldpath *byte, newpath *byte) int __asm__ ("rename");
-func libc_chmod(path *byte, mode Mode_t) int __asm__ ("chmod");
-func libc_fchmod(fd int, mode Mode_t) int __asm__ ("fchmod");
-func libc_chown(path *byte, owner Uid_t, group Gid_t) int __asm__ ("chown");
-func libc_fchown(fd int, owner Uid_t, group Gid_t) int __asm__ ("fchown");
-func libc_lchown(path *byte, owner Uid_t, group Gid_t) int __asm__ ("lchown");
-func libc_utimes(filename *byte, times *[2]Timeval) int __asm__ ("utimes");
-func libc_getuid() Uid_t __asm__ ("getuid");
-func libc_geteuid() Uid_t __asm__ ("geteuid");
-func libc_getgid() Gid_t __asm__ ("getgid");
-func libc_getegid() Gid_t __asm__ ("getegid");
-func libc_getgroups(size int, list *Gid_t) int __asm__ ("getgroups");
-func libc_getpagesize() int __asm__ ("getpagesize");
-func libc_exit(status int) __asm__ ("exit")
-func libc_getpid() Pid_t __asm__ ("getpid")
-func libc_getppid() Pid_t __asm__ ("getppid")
-func libc_kill(Pid_t, int) int __asm__ ("kill")
-
-func Open(name string, mode int, perm uint32) (fd int, errno int) {
-  fd = libc_open(StringBytePtr(name), mode, Mode_t(perm));
-  if fd < 0 { errno = GetErrno() }
-  return;
-}
-
-func Creat(name string, perm uint32) (fd int, errno int) {
-  fd = libc_open(StringBytePtr(name), O_CREAT | O_WRONLY | O_TRUNC, Mode_t(perm));
-  if fd < 0 { errno = GetErrno() }
-  return;
-}
-
-func Close(fd int) (errno int) {
-  r := libc_close(fd);
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Read(fd int, p []byte) (n int, errno int) {
-  var _p0 *byte;
-  if len(p) > 0 { _p0 = &p[0]; }
-  r := libc_read(fd, _p0, Size_t(len(p)));
-  if r == -1 { errno = GetErrno() }
-  n = int(r);
-  return;
-}
-
-func Write(fd int, p []byte) (n int, errno int) {
-  var _p0 *byte;
-  if len(p) > 0 { _p0 = &p[0]; }
-  r := libc_write(fd, _p0, Size_t(len(p)));
-  if r == -1 { errno = GetErrno() }
-  n = int(r);
-  return;
-}
-
-func Fsync(fd int) (errno int) {
-	if libc_fsync(fd) < 0 {
-		errno = GetErrno()
-	}
-	return
-}
-
-func Pread(fd int, p []byte, offset int64) (n int, errno int) {
-  var _p0 *byte;
-  if len(p) > 0 { _p0 = &p[0]; }
-  r := libc_pread(fd, _p0, Size_t(len(p)), Offset_t(offset));
-  if r == -1 { errno = GetErrno() }
-  n = int(r);
-  return;
-}
-
-func Pwrite(fd int, p []byte, offset int64) (n int, errno int) {
-  var _p0 *byte;
-  if len(p) > 0 { _p0 = &p[0]; }
-  r := libc_pwrite(fd, _p0, Size_t(len(p)), Offset_t(offset));
-  if r == -1 { errno = GetErrno() }
-  n = int(r);
-  return;
-}
-
-func Seek(fd int, offset int64, whence int) (off int64, errno int) {
-  r := libc_lseek(fd, Offset_t(offset), whence);
-  if r == -1 { errno = GetErrno() }
-  off = int64(r);
-  return;
-}
-
-func Pipe(p []int) (errno int) {
-  if len(p) != 2 {
-    return EINVAL;
-  }
-  var pp [2]int;
-  r := libc_pipe(&pp[0]);
-  if r < 0 {
-    errno = GetErrno();
-  }
-  p[0] = pp[0];
-  p[1] = pp[1];
-  return;
-}
-
-func Stat(name string, buf *Stat_t) (errno int) {
-  r := libc_stat(StringBytePtr(name), buf);
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Lstat(name string, buf *Stat_t) (errno int) {
-  r := libc_lstat(StringBytePtr(name), buf);
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Fstat(fd int, buf *Stat_t) (errno int) {
-  r := libc_fstat(fd, buf);
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Unlink(name string) (errno int) {
-  r := libc_unlink(StringBytePtr(name));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Rmdir(name string) (errno int) {
-  r := libc_rmdir(StringBytePtr(name));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Mkdir(path string, mode uint32) (errno int) {
-  r := libc_mkdir(StringBytePtr(path), Mode_t(mode));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Dup(oldfd int) (fd int, errno int) {
-	fd = libc_dup(oldfd)
-	if fd < 0 {
-		errno = GetErrno()
-	}
-	return
-}
-
-func Gettimeofday(tv *Timeval) (errno int) {
-  r := libc_gettimeofday(tv, nil);
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-const nfdbits = unsafe.Sizeof(fds_bits_type) * 8
-
-type FdSet_t struct {
-	Fds_bits [(FD_SETSIZE + nfdbits - 1) / nfdbits]fds_bits_type
-}
-
-func FDSet(fd int, set *FdSet_t) {
-	set.Fds_bits[fd / nfdbits] |= (1 << (uint)(fd % nfdbits))
-}
-
-func FDClr(fd int, set *FdSet_t) {
-	set.Fds_bits[fd / nfdbits] &^= (1 << (uint)(fd % nfdbits))
-}
-
-func FDIsSet(fd int, set *FdSet_t) bool {
-	if set.Fds_bits[fd / nfdbits] & (1 << (uint)(fd % nfdbits)) != 0 {
-		return true
-	} else {
-		return false
-	}
-}
-
-func FDZero(set *FdSet_t) {
-	for i := range set.Fds_bits {
-		set.Fds_bits[i] = 0
-	}
-}
-
-func Select(nfds int, r *FdSet_t, w *FdSet_t, e *FdSet_t, timeout *Timeval) (n int, errno int) {
-  n = libc_select(nfds, (*byte)(unsafe.Pointer(r)),
-		  (*byte)(unsafe.Pointer(w)),
-		  (*byte)(unsafe.Pointer(e)), timeout);
-  if n < 0 { errno = GetErrno() }
-  return;
-}
-
-func Chdir(path string) (errno int) {
-  r := libc_chdir(StringBytePtr(path));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Fchdir(fd int) (errno int) {
-  r := libc_fchdir(int(fd));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-const ImplementsGetwd = true
-
-func Getwd() (ret string, errno int) {
-	for len := Size_t(4096); ; len *= 2 {
-		b := make([]byte, len);
-		p := libc_getcwd(&b[0], len);
-		if p != nil {
-			i := 0;
-			for b[i] != 0 {
-				i++;
-			}
-			return string(b[0:i]), 0;
-		}
-		e := GetErrno();
-		if e != ERANGE {
-			return "", e;
-		}
-	}
-}
-
-func Link(oldpath, newpath string) (errno int) {
-  r := libc_link(StringBytePtr(oldpath), StringBytePtr(newpath));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Symlink(oldpath, newpath string) (errno int) {
-  r := libc_symlink(StringBytePtr(oldpath), StringBytePtr(newpath));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Readlink(path string, buf []byte) (n int, errno int) {
-  var _p0 *byte;
-  if len(buf) > 0 { _p0 = &buf[0]; }
-  r := libc_readlink(StringBytePtr(path), _p0, Size_t(len(buf)));
-  if r < 0 { errno = GetErrno() }
-  n = int(r);
-  return;
-}
-
-func Rename(oldpath, newpath string) (errno int) {
-	r := libc_rename(StringBytePtr(oldpath), StringBytePtr(newpath));
-	if r < 0 { errno = GetErrno() }
-	return 
-}
-
-func Chmod(path string, mode uint32) (errno int) {
-  r := libc_chmod(StringBytePtr(path), Mode_t(mode));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Fchmod(fd int, mode uint32) (errno int) {
-  r := libc_fchmod(fd, Mode_t(mode));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Chown(path string, uid int, gid int) (errno int) {
-  r := libc_chown(StringBytePtr(path), Uid_t(uid), Gid_t(gid));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Lchown(path string, uid int, gid int) (errno int) {
-  r := libc_lchown(StringBytePtr(path), Uid_t(uid), Gid_t(gid));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Fchown(fd int, uid int, gid int) (errno int) {
-  r := libc_fchown(fd, Uid_t(uid), Gid_t(gid));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Truncate(path string, length int64) (errno int) {
-  r := libc_truncate(StringBytePtr(path), Offset_t(length));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Ftruncate(fd int, length int64) (errno int) {
-  r := libc_ftruncate(fd, Offset_t(length));
-  if r < 0 { errno = GetErrno() }
-  return;
-}
-
-func Utimes(path string, tv []Timeval) (errno int) {
-  if len(tv) != 2 {
-    return EINVAL;
-  }
-  r := libc_utimes(StringBytePtr(path),
-		   (*[2]Timeval)(unsafe.Pointer(&tv[0])));
-  if r < 0 {
-    errno = GetErrno();
-  }
-  return;
-}
-
-// Getuid returns the numeric user id of the caller.
-func Getuid() int {
-  return int(libc_getuid());
-}
-
-// Geteuid returns the numeric effective user id of the caller.
-func Geteuid() int {
-  return int(libc_geteuid());
-}
-
-// Getgid returns the numeric group id of the caller.
-func Getgid() int {
-  return int(libc_getgid());
-}
-
-// Getegid returns the numeric effective group id of the caller.
-func Getegid() int {
-  return int(libc_getegid());
-}
-
-// Getgroups returns a list of the numeric ids of groups that the caller belongs to.
-func Getgroups() (gids []int, errno int) {
-	n := libc_getgroups(0, nil);
-	if n < 0 {
-		return nil, GetErrno();
-	}
-	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 = libc_getgroups(n, &a[0]);
-	if n < 0 {
-		return nil, GetErrno();
-	}
-	gids = make([]int, n);
-	for i, v := range a[0:n] {
-		gids[i] = int(v);
-	}
-	return;
-}
-
-func Getpagesize() int {
-	return libc_getpagesize();
-}
-
-func TimespecToNsec(ts Timespec) int64 {
-	return int64(ts.Sec)*1e9 + int64(ts.Nsec);
-}
-
-func NsecToTimespec(nsec int64) (ts Timespec) {
-	ts.Sec = Timespec_sec_t(nsec / 1e9);
-	ts.Nsec = Timespec_nsec_t(nsec % 1e9);
-	return;
-}
-
-func TimevalToNsec(tv Timeval) int64 {
-	return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3;
-}
-
-func NsecToTimeval(nsec int64) (tv Timeval) {
-	nsec += 999;	// round up to microsecond
-	tv.Sec = Timeval_sec_t(nsec/1e9);
-	tv.Usec = Timeval_usec_t(nsec%1e9 / 1e3);
-	return;
-}
-
-func Exit(code int) {
-	libc_exit(code);
-}
-
-func fcntl(fd, cmd, arg int) (val int, errno int) {
-  val = libc_fcntl(int(fd), int(cmd), int(arg));
-  if val == -1 { errno = GetErrno() }
-  return;
-}
-
-func Getpid() (pid int) {
-  return int(libc_getpid());
-}
-
-func Getppid() (ppid int) {
-  return int(libc_getppid());
-}
-
-func Kill(pid int, sig int) (errno int) {
-	r := libc_kill(Pid_t(pid), sig)
-	if r < 0 {
-		errno = GetErrno()
-	}
-	return
-}