isherman@chromium.org | a9490ac | 2012-03-17 06:43:41 +0900 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
ajwong@chromium.org | 8e2e300 | 2011-09-22 03:05:41 +0900 | [diff] [blame] | 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 "build/build_config.h" |
| 6 | |
| 7 | #if defined(COMPILER_MSVC) |
ehsan.akhgari@gmail.com | 429cbd6 | 2014-08-09 23:48:36 +0900 | [diff] [blame] | 8 | #include <intrin.h> |
ajwong@chromium.org | 8e2e300 | 2011-09-22 03:05:41 +0900 | [diff] [blame] | 9 | #endif |
| 10 | |
| 11 | #include "base/location.h" |
brettw@chromium.org | abcde5c | 2013-02-07 11:57:22 +0900 | [diff] [blame] | 12 | #include "base/strings/string_number_conversions.h" |
avi@chromium.org | 67d593d | 2013-06-11 04:06:57 +0900 | [diff] [blame] | 13 | #include "base/strings/stringprintf.h" |
ajwong@chromium.org | 8e2e300 | 2011-09-22 03:05:41 +0900 | [diff] [blame] | 14 | |
| 15 | namespace tracked_objects { |
| 16 | |
| 17 | Location::Location(const char* function_name, |
| 18 | const char* file_name, |
| 19 | int line_number, |
| 20 | const void* program_counter) |
| 21 | : function_name_(function_name), |
| 22 | file_name_(file_name), |
| 23 | line_number_(line_number), |
| 24 | program_counter_(program_counter) { |
| 25 | } |
| 26 | |
| 27 | Location::Location() |
| 28 | : function_name_("Unknown"), |
| 29 | file_name_("Unknown"), |
| 30 | line_number_(-1), |
| 31 | program_counter_(NULL) { |
| 32 | } |
| 33 | |
sque | 9f57c2c | 2015-03-14 11:39:03 +0900 | [diff] [blame] | 34 | Location::Location(const Location& other) |
| 35 | : function_name_(other.function_name_), |
| 36 | file_name_(other.file_name_), |
| 37 | line_number_(other.line_number_), |
| 38 | program_counter_(other.program_counter_) { |
| 39 | } |
| 40 | |
ajwong@chromium.org | 8e2e300 | 2011-09-22 03:05:41 +0900 | [diff] [blame] | 41 | std::string Location::ToString() const { |
| 42 | return std::string(function_name_) + "@" + file_name_ + ":" + |
| 43 | base::IntToString(line_number_); |
| 44 | } |
| 45 | |
| 46 | void Location::Write(bool display_filename, bool display_function_name, |
| 47 | std::string* output) const { |
| 48 | base::StringAppendF(output, "%s[%d] ", |
| 49 | display_filename ? file_name_ : "line", |
| 50 | line_number_); |
| 51 | |
| 52 | if (display_function_name) { |
| 53 | WriteFunctionName(output); |
| 54 | output->push_back(' '); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | void Location::WriteFunctionName(std::string* output) const { |
| 59 | // Translate "<" to "<" for HTML safety. |
| 60 | // TODO(jar): Support ASCII or html for logging in ASCII. |
| 61 | for (const char *p = function_name_; *p; p++) { |
| 62 | switch (*p) { |
| 63 | case '<': |
| 64 | output->append("<"); |
| 65 | break; |
| 66 | |
| 67 | case '>': |
| 68 | output->append(">"); |
| 69 | break; |
| 70 | |
| 71 | default: |
| 72 | output->push_back(*p); |
| 73 | break; |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
isherman@chromium.org | 98c10d2 | 2012-04-13 09:39:26 +0900 | [diff] [blame] | 78 | //------------------------------------------------------------------------------ |
| 79 | LocationSnapshot::LocationSnapshot() : line_number(-1) { |
jar@chromium.org | 666ef9c | 2011-10-25 03:55:16 +0900 | [diff] [blame] | 80 | } |
| 81 | |
isherman@chromium.org | 98c10d2 | 2012-04-13 09:39:26 +0900 | [diff] [blame] | 82 | LocationSnapshot::LocationSnapshot( |
| 83 | const tracked_objects::Location& location) |
| 84 | : file_name(location.file_name()), |
| 85 | function_name(location.function_name()), |
| 86 | line_number(location.line_number()) { |
| 87 | } |
| 88 | |
| 89 | LocationSnapshot::~LocationSnapshot() { |
| 90 | } |
| 91 | |
| 92 | //------------------------------------------------------------------------------ |
ajwong@chromium.org | 8e2e300 | 2011-09-22 03:05:41 +0900 | [diff] [blame] | 93 | #if defined(COMPILER_MSVC) |
| 94 | __declspec(noinline) |
| 95 | #endif |
| 96 | BASE_EXPORT const void* GetProgramCounter() { |
| 97 | #if defined(COMPILER_MSVC) |
| 98 | return _ReturnAddress(); |
sergeyu@chromium.org | b9b2847 | 2013-12-23 13:02:49 +0900 | [diff] [blame] | 99 | #elif defined(COMPILER_GCC) && !defined(OS_NACL) |
ajwong@chromium.org | 8e2e300 | 2011-09-22 03:05:41 +0900 | [diff] [blame] | 100 | return __builtin_extract_return_addr(__builtin_return_address(0)); |
pkasting@chromium.org | 0bc25d5 | 2014-03-15 03:25:48 +0900 | [diff] [blame] | 101 | #else |
ajwong@chromium.org | 8e2e300 | 2011-09-22 03:05:41 +0900 | [diff] [blame] | 102 | return NULL; |
pkasting@chromium.org | 0bc25d5 | 2014-03-15 03:25:48 +0900 | [diff] [blame] | 103 | #endif |
ajwong@chromium.org | 8e2e300 | 2011-09-22 03:05:41 +0900 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | } // namespace tracked_objects |