diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/processor/proc_maps_linux.cc')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/processor/proc_maps_linux.cc | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/processor/proc_maps_linux.cc b/toolkit/crashreporter/google-breakpad/src/processor/proc_maps_linux.cc deleted file mode 100644 index 3c0dea25d..000000000 --- a/toolkit/crashreporter/google-breakpad/src/processor/proc_maps_linux.cc +++ /dev/null @@ -1,106 +0,0 @@ -// Copyright (c) 2013 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. - -#ifndef __STDC_FORMAT_MACROS -#define __STDC_FORMAT_MACROS -#endif - -#include "google_breakpad/processor/proc_maps_linux.h" - -#include <fcntl.h> -#include <inttypes.h> -#include <stdio.h> - -#include "common/using_std_string.h" -#include "processor/logging.h" - -#if defined(OS_ANDROID) && !defined(__LP64__) -// In 32-bit mode, Bionic's inttypes.h defines PRI/SCNxPTR as an -// unsigned long int, which is incompatible with Bionic's stdint.h -// defining uintptr_t as an unsigned int: -// https://code.google.com/p/android/issues/detail?id=57218 -#undef SCNxPTR -#define SCNxPTR "x" -#endif - -namespace google_breakpad { - -bool ParseProcMaps(const string& input, - std::vector<MappedMemoryRegion>* regions_out) { - std::vector<MappedMemoryRegion> regions; - - // This isn't async safe nor terribly efficient, but it doesn't need to be at - // this point in time. - - // Split the string by newlines. - std::vector<string> lines; - string l = ""; - for (size_t i = 0; i < input.size(); i++) { - if (input[i] != '\n' && input[i] != '\r') { - l.push_back(input[i]); - } else if (l.size() > 0) { - lines.push_back(l); - l.clear(); - } - } - if (l.size() > 0) { - BPLOG(ERROR) << "Input doesn't end in newline"; - return false; - } - - for (size_t i = 0; i < lines.size(); ++i) { - MappedMemoryRegion region; - const char* line = lines[i].c_str(); - char permissions[5] = {'\0'}; // Ensure NUL-terminated string. - int path_index = 0; - - // Sample format from man 5 proc: - // - // address perms offset dev inode pathname - // 08048000-08056000 r-xp 00000000 03:0c 64593 /usr/sbin/gpm - // - // The final %n term captures the offset in the input string, which is used - // to determine the path name. It *does not* increment the return value. - // Refer to man 3 sscanf for details. - if (sscanf(line, "%" SCNx64 "-%" SCNx64 " %4c %" SCNx64" %hhx:%hhx %" - SCNd64 " %n", ®ion.start, ®ion.end, permissions, - ®ion.offset, ®ion.major_device, ®ion.minor_device, - ®ion.inode, &path_index) < 7) { - BPLOG(ERROR) << "sscanf failed for line: " << line; - return false; - } - - region.permissions = 0; - - if (permissions[0] == 'r') - region.permissions |= MappedMemoryRegion::READ; - else if (permissions[0] != '-') - return false; - - if (permissions[1] == 'w') - region.permissions |= MappedMemoryRegion::WRITE; - else if (permissions[1] != '-') - return false; - - if (permissions[2] == 'x') - region.permissions |= MappedMemoryRegion::EXECUTE; - else if (permissions[2] != '-') - return false; - - if (permissions[3] == 'p') - region.permissions |= MappedMemoryRegion::PRIVATE; - else if (permissions[3] != 's' && permissions[3] != 'S') // Shared memory. - return false; - - // Pushing then assigning saves us a string copy. - regions.push_back(region); - regions.back().path.assign(line + path_index); - regions.back().line.assign(line); - } - - regions_out->swap(regions); - return true; -} - -} // namespace google_breakpad |