1 files changed, 108 insertions, 0 deletions
diff --git a/sysdeps/nacl/nacl-interfaces.h b/sysdeps/nacl/nacl-interfaces.h
new file mode 100644
index 0000000000..8d28e1a6df
--- /dev/null
+++ b/sysdeps/nacl/nacl-interfaces.h
@@ -0,0 +1,108 @@
+/* Using NaCl interface tables.
+   Copyright (C) 2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _NACL_INTERFACES_H
+#define _NACL_INTERFACES_H	1
+
+#include <errno.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+/* <nacl-irt.h> is massaged from native_client/src/untrusted/irt/irt.h so
+   that it uses nacl_abi_*_t type names.  We must define those types first.  */
+
+/* These are the same in the IRT ABI as in the libc ABI.  */
+typedef blksize_t nacl_abi_blksize_t;
+typedef dev_t nacl_abi_dev_t;
+typedef gid_t nacl_abi_gid_t;
+typedef ino_t nacl_abi_ino_t;
+typedef mode_t nacl_abi_mode_t;
+typedef nlink_t nacl_abi_nlink_t;
+typedef size_t nacl_abi_size_t;
+typedef time_t nacl_abi_time_t;
+typedef uid_t nacl_abi_uid_t;
+typedef struct dirent nacl_abi_dirent_t;
+typedef struct timeval nacl_abi_timeval_t;
+typedef struct timespec nacl_abi_timespec_t;
+
+/* XXX change clock_t? */
+typedef uint32_t nacl_abi_clock_t;
+
+typedef int32_t nacl_abi_blkcnt_t;
+
+/* This is different by design.  */
+typedef struct nacl_abi_stat nacl_abi_stat_t;
+
+#include <nacl-irt.h>
+
+/* This is how we access the IRT interface-query function.
+   This formulation makes it usable as if it were a function name.  */
+#define __nacl_irt_query	(*(TYPE_nacl_irt_query) GLRO(dl_sysinfo))
+
+
+/* This describes one IRT (or IRT-like) interface that libc uses.
+   This structure contains no pointers, so it can go into rodata
+   without relocs.  Instead, the actual tables we use for these
+   interfaces live in a parallel section in writable data.  */
+struct nacl_interface {
+  size_t table_size;
+  size_t namelen;
+  char name[];
+};
+
+/* Increment for 'const struct nacl_interface *' pointers.  */
+static inline const struct nacl_interface *
+next_nacl_interface (const struct nacl_interface *i)
+{
+  uintptr_t align = __alignof (*i);
+  return (const void *) (((uintptr_t) &i->name[i->namelen] + align - 1)
+                         & -align);
+}
+
+#if IS_IN (libpthread)
+# define libpthread_hidden_proto(name)	hidden_proto (name)
+#else
+# define libpthread_hidden_proto(name)
+#endif
+
+#define DECLARE_INTERFACE(module, type) \
+  extern struct type __##type; module##_hidden_proto (__##type);
+
+#define NACL_MANDATORY_INTERFACE(module, id, type)	\
+  DECLARE_INTERFACE (module, type)
+#define NACL_OPTIONAL_INTERFACE(module, id, type)	\
+  DECLARE_INTERFACE (module, type)
+#include "nacl-interface-list.h"
+#undef	NACL_MANDATORY_INTERFACE
+#undef	NACL_OPTIONAL_INTERFACE
+
+extern void __nacl_initialize_interfaces (void) attribute_hidden;
+
+/* Convenience function for handling IRT call return values.  */
+static inline int
+__nacl_fail (int err)
+{
+  errno = err;
+  return -1;
+}
+
+#define NACL_CALL(err, val) \
+  ({ int _err = (err); _err ? __nacl_fail (_err) : (val); })
+
+#endif  /* nacl-interfaces.h */