Imported from /home/lorry/working-area/delta_gcc-tarball/gcc-4.7.3.tar.bz2.gcc-4.7.3

1 files changed, 355 insertions, 0 deletions

diff --git a/libgo/runtime/go-nosys.c b/libgo/runtime/go-nosys.c
new file mode 100644
index 0000000000..36bbdd26c3
--- /dev/null
+++ b/libgo/runtime/go-nosys.c
@@ -0,0 +1,355 @@
+/* go-nosys.c -- functions missing from system.
+
+   Copyright 2012 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.  */
+
+/* This file exists to provide definitions for functions that are
+   missing from libc, according to the configure script.  This permits
+   the Go syscall package to not worry about whether the functions
+   exist or not.  */
+
+#include "config.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#ifndef HAVE_OFF64_T
+typedef signed int off64_t __attribute__ ((mode (DI)));
+#endif
+
+#ifndef HAVE_LOFF_T
+typedef off64_t loff_t;
+#endif
+
+#ifndef HAVE_EPOLL_CREATE1
+int
+epoll_create1 (int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_FACCESSAT
+int
+faccessat (int fd __attribute__ ((unused)),
+	   const char *pathname __attribute__ ((unused)),
+	   int mode __attribute__ ((unused)),
+	   int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_FALLOCATE
+int
+fallocate (int fd __attribute__ ((unused)),
+	   int mode __attribute__ ((unused)),
+	   off_t offset __attribute__ ((unused)),
+	   off_t len __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_FCHMODAT
+int
+fchmodat (int dirfd __attribute__ ((unused)),
+	  const char *pathname __attribute__ ((unused)),
+	  mode_t mode __attribute__ ((unused)),
+	  int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_FCHOWNAT
+int
+fchownat (int dirfd __attribute__ ((unused)),
+	  const char *pathname __attribute__ ((unused)),
+	  uid_t owner __attribute__ ((unused)),
+	  gid_t group __attribute__ ((unused)),
+	  int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_FUTIMESAT
+int
+futimesat (int dirfd __attribute__ ((unused)),
+	   const char *pathname __attribute__ ((unused)),
+	   const struct timeval times[2] __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_INOTIFY_ADD_WATCH
+int
+inotify_add_watch (int fd __attribute__ ((unused)),
+		   const char* pathname __attribute__ ((unused)),
+		   uint32_t mask __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_INOTIFY_INIT
+int
+inotify_init (void)
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_INOTIFY_INIT1
+int
+inotify_init1 (int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_INOTIFY_RM_WATCH
+int
+inotify_rm_watch (int fd __attribute__ ((unused)),
+		  uint32_t wd __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_MKDIRAT
+int
+mkdirat (int dirfd __attribute__ ((unused)),
+	 const char *pathname __attribute__ ((unused)),
+	 mode_t mode __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_MKNODAT
+int
+mknodat (int dirfd __attribute__ ((unused)),
+	 const char *pathname __attribute__ ((unused)),
+	 mode_t mode __attribute__ ((unused)),
+	 dev_t dev __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_OPENAT
+int
+openat (int dirfd __attribute__ ((unused)),
+	const char *pathname __attribute__ ((unused)),
+	int oflag __attribute__ ((unused)),
+	...)
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_RENAMEAT
+int
+renameat (int olddirfd __attribute__ ((unused)),
+	  const char *oldpath __attribute__ ((unused)),
+	  int newdirfd __attribute__ ((unused)),
+	  const char *newpath __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_SPLICE
+int
+splice (int fd __attribute__ ((unused)),
+	loff_t *off_in __attribute__ ((unused)),
+	int fd_out __attribute__ ((unused)),
+	loff_t *off_out __attribute__ ((unused)),
+	size_t len __attribute__ ((unused)),
+	unsigned int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_SYNC_FILE_RANGE
+int
+sync_file_range (int fd __attribute__ ((unused)),
+		 off64_t offset __attribute__ ((unused)),
+		 off64_t nbytes __attribute__ ((unused)),
+		 unsigned int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_TEE
+int
+tee (int fd_in __attribute__ ((unused)),
+     int fd_out __attribute__ ((unused)),
+     size_t len __attribute__ ((unused)),
+     unsigned int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_UNLINKAT
+int
+unlinkat (int dirfd __attribute__ ((unused)),
+	  const char *pathname __attribute__ ((unused)),
+	  int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+#ifndef HAVE_UNSHARE
+int
+unshare (int flags __attribute__ ((unused)))
+{
+  errno = ENOSYS;
+  return -1;
+}
+#endif
+
+/* Long double math functions.  These are needed on old i386 systems
+   that don't have them in libm.  The compiler translates calls to
+   these functions on float64 to call an 80-bit floating point
+   function instead, because when optimizing that function can be
+   executed as an x87 instructure.  However, when not optimizing, this
+   translates into a call to the math function.  So on systems that
+   don't provide these functions, we provide a version that just calls
+   the float64 version.  */
+
+#ifndef HAVE_COSL
+long double
+cosl (long double a)
+{
+  return (long double) cos ((double) a);
+}
+#endif
+
+#ifndef HAVE_EXPL
+long double
+expl (long double a)
+{
+  return (long double) exp ((double) a);
+}
+#endif
+
+#ifndef HAVE_LOGL
+long double
+logl (long double a)
+{
+  return (long double) log ((double) a);
+}
+#endif
+
+#ifndef HAVE_SINL
+long double
+sinl (long double a)
+{
+  return (long double) sin ((double) a);
+}
+#endif
+
+#ifndef HAVE_TANL
+long double
+tanl (long double a)
+{
+  return (long double) tan ((double) a);
+}
+#endif
+
+#ifndef HAVE_ACOSL
+long double
+acosl (long double a)
+{
+  return (long double) acos ((double) a);
+}
+#endif
+
+#ifndef HAVE_ASINL
+long double
+asinl (long double a)
+{
+  return (long double) asin ((double) a);
+}
+#endif
+
+#ifndef HAVE_ATANL
+long double
+atanl (long double a)
+{
+  return (long double) atan ((double) a);
+}
+#endif
+
+#ifndef HAVE_ATAN2L
+long double
+atan2l (long double a, long double b)
+{
+  return (long double) atan2 ((double) a, (double) b);
+}
+#endif
+
+#ifndef HAVE_EXPM1L
+long double
+expm1l (long double a)
+{
+  return (long double) expm1 ((double) a);
+}
+#endif
+
+#ifndef HAVE_LDEXPL
+long double
+ldexpl (long double a, int exp)
+{
+  return (long double) ldexp ((double) a, exp);
+}
+#endif
+
+#ifndef HAVE_LOG10L
+long double
+log10l (long double a)
+{
+  return (long double) log10 ((double) a);
+}
+#endif
+
+#ifndef HAVE_LOG1PL
+long double
+log1pl (long double a)
+{
+  return (long double) log1p ((double) a);
+}
+#endif