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-rw-r--r--toolkit/crashreporter/google-breakpad/src/common/linux/memory_mapped_file.cc107
1 files changed, 0 insertions, 107 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/common/linux/memory_mapped_file.cc b/toolkit/crashreporter/google-breakpad/src/common/linux/memory_mapped_file.cc
deleted file mode 100644
index 4e938269f..000000000
--- a/toolkit/crashreporter/google-breakpad/src/common/linux/memory_mapped_file.cc
+++ /dev/null
@@ -1,107 +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.
-
-// memory_mapped_file.cc: Implement google_breakpad::MemoryMappedFile.
-// See memory_mapped_file.h for details.
-
-#include "common/linux/memory_mapped_file.h"
-
-#include <fcntl.h>
-#include <sys/mman.h>
-#if defined(__ANDROID__)
-#include <sys/stat.h>
-#endif
-#include <unistd.h>
-
-#include "common/memory_range.h"
-#include "third_party/lss/linux_syscall_support.h"
-
-namespace google_breakpad {
-
-MemoryMappedFile::MemoryMappedFile() {}
-
-MemoryMappedFile::MemoryMappedFile(const char* path, size_t offset) {
- Map(path, offset);
-}
-
-MemoryMappedFile::~MemoryMappedFile() {
- Unmap();
-}
-
-#include <unistd.h>
-
-bool MemoryMappedFile::Map(const char* path, size_t offset) {
- Unmap();
-
- int fd = sys_open(path, O_RDONLY, 0);
- if (fd == -1) {
- return false;
- }
-
-#if defined(__x86_64__) || defined(__aarch64__) || \
- (defined(__mips__) && _MIPS_SIM == _ABI64)
-
- struct kernel_stat st;
- if (sys_fstat(fd, &st) == -1 || st.st_size < 0) {
-#else
- struct kernel_stat64 st;
- if (sys_fstat64(fd, &st) == -1 || st.st_size < 0) {
-#endif
- sys_close(fd);
- return false;
- }
-
- // Strangely file size can be negative, but we check above that it is not.
- size_t file_len = static_cast<size_t>(st.st_size);
- // If the file does not extend beyond the offset, simply use an empty
- // MemoryRange and return true. Don't bother to call mmap()
- // even though mmap() can handle an empty file on some platforms.
- if (offset >= file_len) {
- sys_close(fd);
- return true;
- }
-
- void* data = sys_mmap(NULL, file_len, PROT_READ, MAP_PRIVATE, fd, offset);
- sys_close(fd);
- if (data == MAP_FAILED) {
- return false;
- }
-
- content_.Set(data, file_len - offset);
- return true;
-}
-
-void MemoryMappedFile::Unmap() {
- if (content_.data()) {
- sys_munmap(const_cast<uint8_t*>(content_.data()), content_.length());
- content_.Set(NULL, 0);
- }
-}
-
-} // namespace google_breakpad