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https://github.com/yuzu-emu/breakpad.git
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dbf56c53a0
The Windows client gyp files were missing proc_maps_linux.cc for the unittest build. Adding that revealed some build errors due to it unconditionally including <inttypes.h>. Removing the workarounds in breakpad_types.h (and a few other places) made that build, which means that Visual C++ 2013 is now our minimum supported version of MSVC. Additionally I tried building with VC++ 2015 and fixed a few warnings (which were failing the build because we have /WX enabled) to ensure that that builds as well. BUG=https://code.google.com/p/google-breakpad/issues/detail?id=669 R=mark@chromium.org Review URL: https://codereview.chromium.org/1353893002 .
106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef __STDC_FORMAT_MACROS
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#define __STDC_FORMAT_MACROS
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#endif
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#include "google_breakpad/processor/proc_maps_linux.h"
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#include <fcntl.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include "processor/logging.h"
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#if defined(OS_ANDROID) && !defined(__LP64__)
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// In 32-bit mode, Bionic's inttypes.h defines PRI/SCNxPTR as an
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// unsigned long int, which is incompatible with Bionic's stdint.h
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// defining uintptr_t as an unsigned int:
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// https://code.google.com/p/android/issues/detail?id=57218
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#undef SCNxPTR
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#define SCNxPTR "x"
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#endif
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namespace google_breakpad {
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bool ParseProcMaps(const std::string& input,
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std::vector<MappedMemoryRegion>* regions_out) {
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std::vector<MappedMemoryRegion> regions;
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// This isn't async safe nor terribly efficient, but it doesn't need to be at
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// this point in time.
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// Split the string by newlines.
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std::vector<std::string> lines;
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std::string l = "";
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for (size_t i = 0; i < input.size(); i++) {
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if (input[i] != '\n' && input[i] != '\r') {
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l.push_back(input[i]);
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} else if (l.size() > 0) {
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lines.push_back(l);
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l.clear();
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}
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}
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if (l.size() > 0) {
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BPLOG(ERROR) << "Input doesn't end in newline";
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return false;
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}
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for (size_t i = 0; i < lines.size(); ++i) {
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MappedMemoryRegion region;
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const char* line = lines[i].c_str();
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char permissions[5] = {'\0'}; // Ensure NUL-terminated string.
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int path_index = 0;
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// Sample format from man 5 proc:
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//
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// address perms offset dev inode pathname
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// 08048000-08056000 r-xp 00000000 03:0c 64593 /usr/sbin/gpm
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//
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// The final %n term captures the offset in the input string, which is used
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// to determine the path name. It *does not* increment the return value.
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// Refer to man 3 sscanf for details.
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if (sscanf(line, "%" SCNx64 "-%" SCNx64 " %4c %" SCNx64" %hhx:%hhx %"
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SCNd64 " %n", ®ion.start, ®ion.end, permissions,
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®ion.offset, ®ion.major_device, ®ion.minor_device,
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®ion.inode, &path_index) < 7) {
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BPLOG(ERROR) << "sscanf failed for line: " << line;
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return false;
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}
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region.permissions = 0;
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if (permissions[0] == 'r')
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region.permissions |= MappedMemoryRegion::READ;
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else if (permissions[0] != '-')
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return false;
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if (permissions[1] == 'w')
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region.permissions |= MappedMemoryRegion::WRITE;
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else if (permissions[1] != '-')
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return false;
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if (permissions[2] == 'x')
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region.permissions |= MappedMemoryRegion::EXECUTE;
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else if (permissions[2] != '-')
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return false;
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if (permissions[3] == 'p')
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region.permissions |= MappedMemoryRegion::PRIVATE;
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else if (permissions[3] != 's' && permissions[3] != 'S') // Shared memory.
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return false;
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// Pushing then assigning saves us a string copy.
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regions.push_back(region);
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regions.back().path.assign(line + path_index);
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regions.back().line.assign(line);
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}
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regions_out->swap(regions);
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return true;
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}
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} // namespace google_breakpad
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