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Issue 2868032: Remove source from crash-reporter and crash-dumper as they are no longer necessary. (Closed) Base URL: ssh://git@chromiumos-git//crash.git
Patch Set: Created 10 years, 6 months ago
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1 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <string>
6
7 #include "base/file_util.h"
8 #include "base/logging.h"
9 #include "base/string_util.h"
10 #include "crash/user_collector.h"
11 #include "metrics/metrics_library.h"
12
13 // This procfs file is used to cause kernel core file writing to
14 // instead pipe the core file into a user space process. See
15 // core(5) man page.
16 static const char kCorePatternFile[] = "/proc/sys/kernel/core_pattern";
17
18 UserCollector::UserCollector()
19 : core_pattern_file_(kCorePatternFile),
20 count_crash_function_(NULL),
21 initialized_(false),
22 is_feedback_allowed_function_(NULL),
23 logger_(NULL) {
24 }
25
26 void UserCollector::Initialize(
27 UserCollector::CountCrashFunction count_crash_function,
28 const std::string &our_path,
29 UserCollector::IsFeedbackAllowedFunction is_feedback_allowed_function,
30 SystemLogging *logger) {
31 CHECK(count_crash_function != NULL);
32 CHECK(is_feedback_allowed_function != NULL);
33 CHECK(logger != NULL);
34
35 count_crash_function_ = count_crash_function;
36 our_path_ = our_path;
37 is_feedback_allowed_function_ = is_feedback_allowed_function;
38 logger_ = logger;
39 initialized_ = true;
40 }
41
42 UserCollector::~UserCollector() {
43 }
44
45 std::string UserCollector::GetPattern(bool enabled) const {
46 if (enabled) {
47 return StringPrintf("|%s --signal=%%s --pid=%%p --exec=%%e",
48 our_path_.c_str());
49 } else {
50 return "core";
51 }
52 }
53
54 bool UserCollector::SetUpInternal(bool enabled) {
55 CHECK(initialized_);
56 logger_->LogInfo("%s crash handling", enabled ? "Enabling" : "Disabling");
57 std::string pattern = GetPattern(enabled);
58 if (file_util::WriteFile(FilePath(core_pattern_file_),
59 pattern.c_str(),
60 pattern.length()) !=
61 static_cast<int>(pattern.length())) {
62 logger_->LogError("Unable to write %s", core_pattern_file_.c_str());
63 return false;
64 }
65 return true;
66 }
67
68 void UserCollector::HandleCrash(int signal, int pid, const std::string &exec) {
69 CHECK(initialized_);
70 logger_->LogWarning("Received crash notification for %s[%d] sig %d",
71 exec.c_str(), pid, signal);
72
73 if (is_feedback_allowed_function_()) {
74 count_crash_function_();
75 }
76 }
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