Rename mount

native_client_sdk/src/libraries/nacl_mounts/kernel_wrap_newlib.cc

-/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <sys/types.h>  // Include something that will define __GLIBC__.
-
-// The entire file is wrapped in this #if. We do this so this .cc file can be
-// compiled, even on a non-newlib build.
-#if defined(__native_client__) && !defined(__GLIBC__)
-
-#include "nacl_mounts/kernel_wrap.h"
-#include <dirent.h>
-#include <errno.h>
-#include <irt.h>
-#include <sys/stat.h>
-#include "nacl_mounts/kernel_intercept.h"
-
-EXTERN_C_BEGIN
-
-#define REAL(name) __nacl_irt_##name##_real
-#define WRAP(name) __nacl_irt_##name##_wrap
-#define STRUCT_NAME(group) __libnacl_irt_##group
-#define DECLARE_STRUCT(group) \
-  extern struct nacl_irt_##group STRUCT_NAME(group);
-#define MUX(group, name) STRUCT_NAME(group).name
-#define DECLARE(group, name) typeof(MUX(group, name)) REAL(name);
-#define DO_WRAP(group, name) do { \
-    REAL(name) = MUX(group, name); \
-    MUX(group, name) = (typeof(REAL(name))) WRAP(name); \
-  } while (0)
-
-DECLARE_STRUCT(fdio)
-DECLARE_STRUCT(filename)
-
-DECLARE(fdio, close)
-DECLARE(fdio, dup)
-DECLARE(fdio, dup2)
-DECLARE(fdio, fstat)
-DECLARE(fdio, getdents)
-DECLARE(fdio, read)
-DECLARE(fdio, seek)
-DECLARE(fdio, write)
-DECLARE(filename, open)
-DECLARE(filename, stat)
-
-
-int access(const char* path, int amode) {
-  return ki_access(path, amode);
-}
-
-int chdir(const char* path) {
-  return ki_chdir(path);
-}
-
-int chmod(const char* path, mode_t mode) {
-  return ki_chmod(path, mode);
-}
-
-int WRAP(close)(int fd) {
-  return (ki_close(fd) < 0) ? errno : 0;
-}
-
-int WRAP(dup)(int fd, int* newfd) {
-  *newfd = ki_dup(fd);
-  return (*newfd < 0) ? errno : 0;
-}
-
-int WRAP(dup2)(int fd, int newfd) {
-  return ki_dup2(fd, newfd);
-}
-
-int WRAP(fstat)(int fd, struct stat *buf) {
-  return (ki_fstat(fd, buf) < 0) ? errno : 0;
-}
-
-int fsync(int fd) {
-  return ki_fsync(fd);
-}
-
-char* getcwd(char* buf, size_t size) {
-  return ki_getcwd(buf, size);
-}
-
-char* getwd(char* buf) {
-  return ki_getwd(buf);
-}
-
-int getdents(int fd, void* buf, unsigned int count) {
-  return ki_getdents(fd, buf, count);
-}
-
-int WRAP(getdents)(int fd, dirent* buf, size_t count, size_t *nread) {
-  return (ki_getdents(fd, buf, count) < 0) ? errno : 0;
-}
-
-int isatty(int fd) {
-  return ki_isatty(fd);
-}
-
-int link(const char* oldpath, const char* newpath) {
-  return ki_link(oldpath, newpath);
-}
-
-int mkdir(const char* path, mode_t mode) {
-  return ki_mkdir(path, mode);
-}
-
-int mount(const char* source, const char* target, const char* filesystemtype,
-          unsigned long mountflags, const void* data) {
-  return ki_mount(source, target, filesystemtype, mountflags, data);
-}
-
-int WRAP(open)(const char* pathname, int oflag, mode_t cmode, int* newfd) {
-  *newfd = ki_open(pathname, oflag);
-  return (*newfd < 0) ? errno : 0;
-}
-
-int WRAP(read)(int fd, void *buf, size_t count, size_t *nread) {
-  if (!ki_is_initialized())
-    return REAL(read)(fd, buf, count, nread);
-
-  ssize_t signed_nread = ki_read(fd, buf, count);
-  *nread = static_cast<size_t>(signed_nread);
-  return (signed_nread < 0) ? errno : 0;
-}
-
-int remove(const char* path) {
-  return ki_remove(path);
-}
-
-int rmdir(const char* path) {
-  return ki_rmdir(path);
-}
-
-int WRAP(seek)(int fd, off_t offset, int whence, off_t* new_offset) {
-  *new_offset = ki_lseek(fd, offset, whence);
-  return (*new_offset < 0) ? errno : 0;
-}
-
-int WRAP(stat)(const char *pathname, struct stat *buf) {
-  return (ki_stat(pathname, buf) < 0) ? errno : 0;
-}
-
-int symlink(const char* oldpath, const char* newpath) {
-  return ki_symlink(oldpath, newpath);
-}
-
-int umount(const char* path) {
-  return ki_umount(path);
-}
-
-int unlink(const char* path) {
-  return ki_unlink(path);
-}
-
-int WRAP(write)(int fd, const void *buf, size_t count, size_t *nwrote) {
-  if (!ki_is_initialized())
-    return REAL(write)(fd, buf, count, nwrote);
-
-  ssize_t signed_nwrote = ki_write(fd, buf, count);
-  *nwrote = static_cast<size_t>(signed_nwrote);
-  return (signed_nwrote < 0) ? errno : 0;
-}
-
-
-void kernel_wrap_init() {
-  static bool wrapped = false;
-
-  if (!wrapped) {
-    wrapped = true;
-    DO_WRAP(fdio, close);
-    DO_WRAP(fdio, dup);
-    DO_WRAP(fdio, dup2);
-    DO_WRAP(fdio, fstat);
-    DO_WRAP(fdio, getdents);
-    DO_WRAP(fdio, read);
-    DO_WRAP(fdio, seek);
-    DO_WRAP(fdio, write);
-    DO_WRAP(filename, open);
-    DO_WRAP(filename, stat);
-  }
-}
-
-
-EXTERN_C_END
-
-
-#endif  // defined(__native_client__) && !defined(__GLIBC__)