[NaCl SDK] Remove support for bionic toolchain

native_client_sdk/src/libraries/ppapi_stub/ppapi_main.c

-/*
- * Copyright (c) 2014 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 <pthread.h>
-
-#include "irt_syscalls.h"
-#include "ppapi/c/pp_module.h"
-#include "ppapi/c/ppp.h"
-
-struct PP_StartFunctions {
-  int32_t (*PPP_InitializeModule)(PP_Module module_id,
-                                  PPB_GetInterface get_browser_interface);
-  void (*PPP_ShutdownModule)();
-  const void* (*PPP_GetInterface)(const char* interface_name);
-};
-
-struct PP_ThreadFunctions {
-  /*
-   * This is a cut-down version of pthread_create()/pthread_join().
-   * We omit thread creation attributes and the thread's return value.
-   *
-   * We use uintptr_t as the thread ID type because pthread_t is not
-   * part of the stable ABI; a user thread library might choose an
-   * arbitrary size for its own pthread_t.
-   */
-  int (*thread_create)(uintptr_t* tid,
-                       void (*func)(void* thread_argument),
-                       void* thread_argument);
-  int (*thread_join)(uintptr_t tid);
-};
-
-#define NACL_IRT_PPAPIHOOK_v0_1 "nacl-irt-ppapihook-0.1"
-struct nacl_irt_ppapihook {
-  int (*ppapi_start)(const struct PP_StartFunctions*);
-  void (*ppapi_register_thread_creator)(const struct PP_ThreadFunctions*);
-};
-
-
-static int thread_create(uintptr_t *tid,
-                         void (*func)(void *thread_argument),
-                         void *thread_argument) {
-  /*
-   * We know that newlib and glibc use a small pthread_t type, so we
-   * do not need to wrap pthread_t values.
-   */
-  return pthread_create((pthread_t *) tid, NULL,
-                        (void *(*)(void *thread_argument)) func,
-                        thread_argument);
-}
-
-static int thread_join(uintptr_t tid) {
-  return pthread_join((pthread_t) tid, NULL);
-}
-
-/*
- * These are dangling references to functions that the application must define.
- */
-static const struct PP_StartFunctions ppapi_app_start_callbacks = {
-  PPP_InitializeModule,
-  PPP_ShutdownModule,
-  PPP_GetInterface
-};
-
-const static struct PP_ThreadFunctions thread_funcs = {
-  thread_create,
-  thread_join
-};
-
-static void fatal_error(const char *message) {
-  write(2, message, strlen(message));
-  _exit(127);
-}
-
-/*
- * We cannot tell at link time whether the application uses PPB_Audio,
- * because of the way that PPAPI is defined via runtime interface
- * query rather than a set of static functions.  This means that we
- * register the audio thread functions unconditionally.  This adds the
- * small overhead of pulling in pthread_create() even if the
- * application does not use PPB_Audio or libpthread.
- *
- * If an application developer wants to avoid that cost, they can
- * override this function with an empty definition.
- */
-void __nacl_register_thread_creator(const struct nacl_irt_ppapihook *hooks) {
-  hooks->ppapi_register_thread_creator(&thread_funcs);
-}
-
-int PpapiPluginStart(const struct PP_StartFunctions *funcs) {
-  struct nacl_irt_ppapihook hooks;
-  if (sizeof(hooks) != __nacl_irt_query(NACL_IRT_PPAPIHOOK_v0_1,
-                                        &hooks, sizeof(hooks))) {
-    fatal_error("PpapiPluginStart: PPAPI hooks not found\n");
-  }
-
-  __nacl_register_thread_creator(&hooks);
-  return hooks.ppapi_start(funcs);
-}
-
-
-/*
- * The application's main (or the one supplied in this library) calls this
- * to start the PPAPI world.
- */
-int PpapiPluginMain(void) {
-  return PpapiPluginStart(&ppapi_app_start_callbacks);
-}