1 files changed, 0 insertions, 322 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/common/linux/tests/crash_generator.cc b/toolkit/crashreporter/google-breakpad/src/common/linux/tests/crash_generator.cc
deleted file mode 100644
index c9491f6f2..000000000
--- a/toolkit/crashreporter/google-breakpad/src/common/linux/tests/crash_generator.cc
+++ /dev/null
@@ -1,322 +0,0 @@
-// Copyright (c) 2011, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// crash_generator.cc: Implement google_breakpad::CrashGenerator.
-// See crash_generator.h for details.
-
-#include "common/linux/tests/crash_generator.h"
-
-#include <pthread.h>
-#include <signal.h>
-#include <stdio.h>
-#include <sys/mman.h>
-#include <sys/resource.h>
-#include <sys/syscall.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#include <string>
-
-#if defined(__ANDROID__)
-#include "common/android/testing/pthread_fixes.h"
-#endif
-#include "common/linux/eintr_wrapper.h"
-#include "common/tests/auto_tempdir.h"
-#include "common/tests/file_utils.h"
-#include "common/using_std_string.h"
-
-namespace {
-
-struct ThreadData {
-  pthread_t thread;
-  pthread_barrier_t* barrier;
-  pid_t* thread_id_ptr;
-};
-
-const char* const kProcFilesToCopy[] = {
-  "auxv", "cmdline", "environ", "maps", "status"
-};
-const size_t kNumProcFilesToCopy =
-    sizeof(kProcFilesToCopy) / sizeof(kProcFilesToCopy[0]);
-
-int gettid() {
-  // Glibc does not provide a wrapper for this.
-  return syscall(__NR_gettid);
-}
-
-int tkill(pid_t tid, int sig) {
-  // Glibc does not provide a wrapper for this.
-  return syscall(__NR_tkill, tid, sig);
-}
-
-// Core file size limit set to 1 MB, which is big enough for test purposes.
-const rlim_t kCoreSizeLimit = 1024 * 1024;
-
-void *thread_function(void *data) {
-  ThreadData* thread_data = reinterpret_cast<ThreadData*>(data);
-  volatile pid_t thread_id = gettid();
-  *(thread_data->thread_id_ptr) = thread_id;
-  int result = pthread_barrier_wait(thread_data->barrier);
-  if (result != 0 && result != PTHREAD_BARRIER_SERIAL_THREAD) {
-    perror("Failed to wait for sync barrier");
-    exit(1);
-  }
-  while (true) {
-    pthread_yield();
-  }
-}
-
-}  // namespace
-
-namespace google_breakpad {
-
-CrashGenerator::CrashGenerator()
-    : shared_memory_(NULL),
-      shared_memory_size_(0) {
-}
-
-CrashGenerator::~CrashGenerator() {
-  UnmapSharedMemory();
-}
-
-bool CrashGenerator::HasDefaultCorePattern() const {
-  char buffer[8];
-  ssize_t buffer_size = sizeof(buffer);
-  return ReadFile("/proc/sys/kernel/core_pattern", buffer, &buffer_size) &&
-         buffer_size == 5 && memcmp(buffer, "core", 4) == 0;
-}
-
-string CrashGenerator::GetCoreFilePath() const {
-  return temp_dir_.path() + "/core";
-}
-
-string CrashGenerator::GetDirectoryOfProcFilesCopy() const {
-  return temp_dir_.path() + "/proc";
-}
-
-pid_t CrashGenerator::GetThreadId(unsigned index) const {
-  return reinterpret_cast<pid_t*>(shared_memory_)[index];
-}
-
-pid_t* CrashGenerator::GetThreadIdPointer(unsigned index) {
-  return reinterpret_cast<pid_t*>(shared_memory_) + index;
-}
-
-bool CrashGenerator::MapSharedMemory(size_t memory_size) {
-  if (!UnmapSharedMemory())
-    return false;
-
-  void* mapped_memory = mmap(0, memory_size, PROT_READ | PROT_WRITE,
-                             MAP_SHARED | MAP_ANONYMOUS, -1, 0);
-  if (mapped_memory == MAP_FAILED) {
-    perror("CrashGenerator: Failed to map shared memory");
-    return false;
-  }
-
-  memset(mapped_memory, 0, memory_size);
-  shared_memory_ = mapped_memory;
-  shared_memory_size_ = memory_size;
-  return true;
-}
-
-bool CrashGenerator::UnmapSharedMemory() {
-  if (!shared_memory_)
-    return true;
-
-  if (munmap(shared_memory_, shared_memory_size_) == 0) {
-    shared_memory_ = NULL;
-    shared_memory_size_ = 0;
-    return true;
-  }
-
-  perror("CrashGenerator: Failed to unmap shared memory");
-  return false;
-}
-
-bool CrashGenerator::SetCoreFileSizeLimit(rlim_t limit) const {
-  struct rlimit limits = { limit, limit };
-  if (setrlimit(RLIMIT_CORE, &limits) == -1) {
-    perror("CrashGenerator: Failed to set core file size limit");
-    return false;
-  }
-  return true;
-}
-
-bool CrashGenerator::CreateChildCrash(
-    unsigned num_threads, unsigned crash_thread, int crash_signal,
-    pid_t* child_pid) {
-  if (num_threads == 0 || crash_thread >= num_threads) {
-    fprintf(stderr, "CrashGenerator: Invalid thread counts; num_threads=%u"
-                    " crash_thread=%u\n", num_threads, crash_thread);
-    return false;
-  }
-
-  if (!MapSharedMemory(num_threads * sizeof(pid_t))) {
-    perror("CrashGenerator: Unable to map shared memory");
-    return false;
-  }
-
-  pid_t pid = fork();
-  if (pid == 0) {
-    if (chdir(temp_dir_.path().c_str()) == -1) {
-      perror("CrashGenerator: Failed to change directory");
-      exit(1);
-    }
-    if (SetCoreFileSizeLimit(kCoreSizeLimit)) {
-      CreateThreadsInChildProcess(num_threads);
-      string proc_dir = GetDirectoryOfProcFilesCopy();
-      if (mkdir(proc_dir.c_str(), 0755) == -1) {
-        perror("CrashGenerator: Failed to create proc directory");
-        exit(1);
-      }
-      if (!CopyProcFiles(getpid(), proc_dir.c_str())) {
-        fprintf(stderr, "CrashGenerator: Failed to copy proc files\n");
-        exit(1);
-      }
-      // On Android the signal sometimes doesn't seem to get sent even though
-      // tkill returns '0'.  Retry a couple of times if the signal doesn't get
-      // through on the first go:
-      // https://code.google.com/p/google-breakpad/issues/detail?id=579
-#if defined(__ANDROID__)
-      const int kRetries = 60;
-      const unsigned int kSleepTimeInSeconds = 1;
-#else
-      const int kRetries = 1;
-      const unsigned int kSleepTimeInSeconds = 600;
-#endif
-      for (int i = 0; i < kRetries; i++) {
-        if (tkill(*GetThreadIdPointer(crash_thread), crash_signal) == -1) {
-          perror("CrashGenerator: Failed to kill thread by signal");
-        } else {
-          // At this point, we've queued the signal for delivery, but there's no
-          // guarantee when it'll be delivered.  We don't want the main thread to
-          // race and exit before the thread we signaled is processed.  So sleep
-          // long enough that we won't flake even under fairly high load.
-          // TODO: See if we can't be a bit more deterministic.  There doesn't
-          // seem to be an API to check on signal delivery status, so we can't
-          // really poll and wait for the kernel to declare the signal has been
-          // delivered.  If it has, and things worked, we'd be killed, so the
-          // sleep length doesn't really matter.
-          sleep(kSleepTimeInSeconds);
-        }
-      }
-    } else {
-      perror("CrashGenerator: Failed to set core limit");
-    }
-    exit(1);
-  } else if (pid == -1) {
-    perror("CrashGenerator: Failed to create child process");
-    return false;
-  }
-
-  int status;
-  if (HANDLE_EINTR(waitpid(pid, &status, 0)) == -1) {
-    perror("CrashGenerator: Failed to wait for child process");
-    return false;
-  }
-  if (!WIFSIGNALED(status) || WTERMSIG(status) != crash_signal) {
-    fprintf(stderr, "CrashGenerator: Child process not killed by the expected signal\n"
-                    "  exit status=0x%x pid=%u signaled=%s sig=%d expected=%d\n",
-                    status, pid, WIFSIGNALED(status) ? "true" : "false",
-                    WTERMSIG(status), crash_signal);
-    return false;
-  }
-
-  if (child_pid)
-    *child_pid = pid;
-  return true;
-}
-
-bool CrashGenerator::CopyProcFiles(pid_t pid, const char* path) const {
-  char from_path[PATH_MAX], to_path[PATH_MAX];
-  for (size_t i = 0; i < kNumProcFilesToCopy; ++i) {
-    int num_chars = snprintf(from_path, PATH_MAX, "/proc/%d/%s",
-                             pid, kProcFilesToCopy[i]);
-    if (num_chars < 0 || num_chars >= PATH_MAX)
-      return false;
-
-    num_chars = snprintf(to_path, PATH_MAX, "%s/%s",
-                         path, kProcFilesToCopy[i]);
-    if (num_chars < 0 || num_chars >= PATH_MAX)
-      return false;
-
-    if (!CopyFile(from_path, to_path))
-      return false;
-  }
-  return true;
-}
-
-void CrashGenerator::CreateThreadsInChildProcess(unsigned num_threads) {
-  *GetThreadIdPointer(0) = getpid();
-
-  if (num_threads <= 1)
-    return;
-
-  // This method does not clean up any pthread resource, as the process
-  // is expected to be killed anyway.
-  ThreadData* thread_data = new ThreadData[num_threads];
-
-  // Create detached threads so that we do not worry about pthread_join()
-  // later being called or not.
-  pthread_attr_t thread_attributes;
-  if (pthread_attr_init(&thread_attributes) != 0 ||
-      pthread_attr_setdetachstate(&thread_attributes,
-                                  PTHREAD_CREATE_DETACHED) != 0) {
-    fprintf(stderr, "CrashGenerator: Failed to initialize thread attribute\n");
-    exit(1);
-  }
-
-  pthread_barrier_t thread_barrier;
-  if (pthread_barrier_init(&thread_barrier, NULL, num_threads) != 0) {
-    fprintf(stderr, "CrashGenerator: Failed to initialize thread barrier\n");
-    exit(1);
-  }
-
-  for (unsigned i = 1; i < num_threads; ++i) {
-    thread_data[i].barrier = &thread_barrier;
-    thread_data[i].thread_id_ptr = GetThreadIdPointer(i);
-    if (pthread_create(&thread_data[i].thread, &thread_attributes,
-                       thread_function, &thread_data[i]) != 0) {
-      fprintf(stderr, "CrashGenerator: Failed to create thread %d\n", i);
-      exit(1);
-    }
-  }
-
-  int result = pthread_barrier_wait(&thread_barrier);
-  if (result != 0 && result != PTHREAD_BARRIER_SERIAL_THREAD) {
-    fprintf(stderr, "CrashGenerator: Failed to wait for thread barrier\n");
-    exit(1);
-  }
-
-  pthread_barrier_destroy(&thread_barrier);
-  pthread_attr_destroy(&thread_attributes);
-  delete[] thread_data;
-}
-
-}  // namespace google_breakpad