Perf profile collection daemon.
Collects system-wide profiles via periodic invocation of
/system/bin/perf, placing the resulting data files in a destination
directory selected via config file. Behavior of the daemon, e.g how
often to profile, duration of profiling runs, etc, can also be
controlled with config file settings.
Change-Id: I7978cab62aa0c2507ecf8d70ba073e77db730120
diff --git a/perfprofd/quipper/base/basictypes.h b/perfprofd/quipper/base/basictypes.h
new file mode 100644
index 0000000..cec5bed
--- /dev/null
+++ b/perfprofd/quipper/base/basictypes.h
@@ -0,0 +1,58 @@
+// Copyright 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.
+
+// This file contains definitions of our old basic integral types
+// ((u)int{8,16,32,64}) and further includes. I recommend that you use the C99
+// standard types instead, and include <stdint.h>/<stddef.h>/etc. as needed.
+// Note that the macros and macro-like constructs that were formerly defined in
+// this file are now available separately in base/macros.h.
+
+#ifndef BASE_BASICTYPES_H_
+#define BASE_BASICTYPES_H_
+
+#include <limits.h> // So we can set the bounds of our types.
+#include <stddef.h> // For size_t.
+#include <stdint.h> // For intptr_t.
+
+#include "quipper/base/macros.h"
+#include "quipper/base/port.h" // Types that only need exist on certain systems.
+
+// DEPRECATED: Please use (u)int{8,16,32,64}_t instead (and include <stdint.h>).
+typedef int8_t int8;
+typedef uint8_t uint8;
+typedef int16_t int16;
+typedef int32_t int32;
+typedef uint16_t uint16;
+typedef uint32_t uint32;
+
+// TODO(vtl): Figure what's up with the 64-bit types. Can we just define them as
+// |int64_t|/|uint64_t|?
+// The NSPR system headers define 64-bit as |long| when possible, except on
+// Mac OS X. In order to not have typedef mismatches, we do the same on LP64.
+//
+// On Mac OS X, |long long| is used for 64-bit types for compatibility with
+// <inttypes.h> format macros even in the LP64 model.
+#if defined(__LP64__) && !defined(OS_MACOSX) && !defined(OS_OPENBSD)
+typedef long int64;
+typedef unsigned long uint64;
+#else
+typedef long long int64;
+typedef unsigned long long uint64;
+#endif
+
+// DEPRECATED: Please use std::numeric_limits (from <limits>) instead.
+const uint8 kuint8max = 0xFF;
+const uint16 kuint16max = 0xFFFF;
+const uint32 kuint32max = 0xFFFFFFFF;
+const uint64 kuint64max = 0xFFFFFFFFFFFFFFFFULL;
+const int8 kint8min = -0x7F - 1;
+const int8 kint8max = 0x7F;
+const int16 kint16min = -0x7FFF - 1;
+const int16 kint16max = 0x7FFF;
+const int32 kint32min = -0x7FFFFFFF - 1;
+const int32 kint32max = 0x7FFFFFFF;
+const int64 kint64min = -0x7FFFFFFFFFFFFFFFLL - 1;
+const int64 kint64max = 0x7FFFFFFFFFFFFFFFLL;
+
+#endif // BASE_BASICTYPES_H_
diff --git a/perfprofd/quipper/base/compiler_specific.h b/perfprofd/quipper/base/compiler_specific.h
new file mode 100644
index 0000000..000c7d7
--- /dev/null
+++ b/perfprofd/quipper/base/compiler_specific.h
@@ -0,0 +1,208 @@
+// Copyright (c) 2012 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 BASE_COMPILER_SPECIFIC_H_
+#define BASE_COMPILER_SPECIFIC_H_
+
+#include "quipper/build/build_config.h"
+
+#if defined(COMPILER_MSVC)
+
+// Macros for suppressing and disabling warnings on MSVC.
+//
+// Warning numbers are enumerated at:
+// http://msdn.microsoft.com/en-us/library/8x5x43k7(VS.80).aspx
+//
+// The warning pragma:
+// http://msdn.microsoft.com/en-us/library/2c8f766e(VS.80).aspx
+//
+// Using __pragma instead of #pragma inside macros:
+// http://msdn.microsoft.com/en-us/library/d9x1s805.aspx
+
+// MSVC_SUPPRESS_WARNING disables warning |n| for the remainder of the line and
+// for the next line of the source file.
+#define MSVC_SUPPRESS_WARNING(n) __pragma(warning(suppress:n))
+
+// MSVC_PUSH_DISABLE_WARNING pushes |n| onto a stack of warnings to be disabled.
+// The warning remains disabled until popped by MSVC_POP_WARNING.
+#define MSVC_PUSH_DISABLE_WARNING(n) __pragma(warning(push)) \
+ __pragma(warning(disable:n))
+
+// MSVC_PUSH_WARNING_LEVEL pushes |n| as the global warning level. The level
+// remains in effect until popped by MSVC_POP_WARNING(). Use 0 to disable all
+// warnings.
+#define MSVC_PUSH_WARNING_LEVEL(n) __pragma(warning(push, n))
+
+// Pop effects of innermost MSVC_PUSH_* macro.
+#define MSVC_POP_WARNING() __pragma(warning(pop))
+
+#define MSVC_DISABLE_OPTIMIZE() __pragma(optimize("", off))
+#define MSVC_ENABLE_OPTIMIZE() __pragma(optimize("", on))
+
+// Allows exporting a class that inherits from a non-exported base class.
+// This uses suppress instead of push/pop because the delimiter after the
+// declaration (either "," or "{") has to be placed before the pop macro.
+//
+// Example usage:
+// class EXPORT_API Foo : NON_EXPORTED_BASE(public Bar) {
+//
+// MSVC Compiler warning C4275:
+// non dll-interface class 'Bar' used as base for dll-interface class 'Foo'.
+// Note that this is intended to be used only when no access to the base class'
+// static data is done through derived classes or inline methods. For more info,
+// see http://msdn.microsoft.com/en-us/library/3tdb471s(VS.80).aspx
+#define NON_EXPORTED_BASE(code) MSVC_SUPPRESS_WARNING(4275) \
+ code
+
+#else // Not MSVC
+
+#define MSVC_SUPPRESS_WARNING(n)
+#define MSVC_PUSH_DISABLE_WARNING(n)
+#define MSVC_PUSH_WARNING_LEVEL(n)
+#define MSVC_POP_WARNING()
+#define MSVC_DISABLE_OPTIMIZE()
+#define MSVC_ENABLE_OPTIMIZE()
+#define NON_EXPORTED_BASE(code) code
+
+#endif // COMPILER_MSVC
+
+
+// The C++ standard requires that static const members have an out-of-class
+// definition (in a single compilation unit), but MSVC chokes on this (when
+// language extensions, which are required, are enabled). (You're only likely to
+// notice the need for a definition if you take the address of the member or,
+// more commonly, pass it to a function that takes it as a reference argument --
+// probably an STL function.) This macro makes MSVC do the right thing. See
+// http://msdn.microsoft.com/en-us/library/34h23df8(v=vs.100).aspx for more
+// information. Use like:
+//
+// In .h file:
+// struct Foo {
+// static const int kBar = 5;
+// };
+//
+// In .cc file:
+// STATIC_CONST_MEMBER_DEFINITION const int Foo::kBar;
+#if defined(COMPILER_MSVC)
+#define STATIC_CONST_MEMBER_DEFINITION __declspec(selectany)
+#else
+#define STATIC_CONST_MEMBER_DEFINITION
+#endif
+
+// Annotate a variable indicating it's ok if the variable is not used.
+// (Typically used to silence a compiler warning when the assignment
+// is important for some other reason.)
+// Use like:
+// int x ALLOW_UNUSED = ...;
+#if defined(COMPILER_GCC)
+#define ALLOW_UNUSED __attribute__((unused))
+#else
+#define ALLOW_UNUSED
+#endif
+
+// Annotate a function indicating it should not be inlined.
+// Use like:
+// NOINLINE void DoStuff() { ... }
+#if defined(COMPILER_GCC)
+#define NOINLINE __attribute__((noinline))
+#elif defined(COMPILER_MSVC)
+#define NOINLINE __declspec(noinline)
+#else
+#define NOINLINE
+#endif
+
+// Specify memory alignment for structs, classes, etc.
+// Use like:
+// class ALIGNAS(16) MyClass { ... }
+// ALIGNAS(16) int array[4];
+#if defined(COMPILER_MSVC)
+#define ALIGNAS(byte_alignment) __declspec(align(byte_alignment))
+#elif defined(COMPILER_GCC)
+#define ALIGNAS(byte_alignment) __attribute__((aligned(byte_alignment)))
+#endif
+
+// Return the byte alignment of the given type (available at compile time). Use
+// sizeof(type) prior to checking __alignof to workaround Visual C++ bug:
+// http://goo.gl/isH0C
+// Use like:
+// ALIGNOF(int32) // this would be 4
+#if defined(COMPILER_MSVC)
+#define ALIGNOF(type) (sizeof(type) - sizeof(type) + __alignof(type))
+#elif defined(COMPILER_GCC)
+#define ALIGNOF(type) __alignof__(type)
+#endif
+
+// Annotate a virtual method indicating it must be overriding a virtual
+// method in the parent class.
+// Use like:
+// virtual void foo() OVERRIDE;
+#define OVERRIDE override
+
+// Annotate a virtual method indicating that subclasses must not override it,
+// or annotate a class to indicate that it cannot be subclassed.
+// Use like:
+// virtual void foo() FINAL;
+// class B FINAL : public A {};
+#define FINAL final
+
+// Annotate a function indicating the caller must examine the return value.
+// Use like:
+// int foo() WARN_UNUSED_RESULT;
+// To explicitly ignore a result, see |ignore_result()| in <base/basictypes.h>.
+#if defined(COMPILER_GCC)
+#define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+#define WARN_UNUSED_RESULT
+#endif
+
+// Tell the compiler a function is using a printf-style format string.
+// |format_param| is the one-based index of the format string parameter;
+// |dots_param| is the one-based index of the "..." parameter.
+// For v*printf functions (which take a va_list), pass 0 for dots_param.
+// (This is undocumented but matches what the system C headers do.)
+#if defined(COMPILER_GCC)
+#define PRINTF_FORMAT(format_param, dots_param) \
+ __attribute__((format(printf, format_param, dots_param)))
+#else
+#define PRINTF_FORMAT(format_param, dots_param)
+#endif
+
+// WPRINTF_FORMAT is the same, but for wide format strings.
+// This doesn't appear to yet be implemented in any compiler.
+// See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38308 .
+#define WPRINTF_FORMAT(format_param, dots_param)
+// If available, it would look like:
+// __attribute__((format(wprintf, format_param, dots_param)))
+
+// MemorySanitizer annotations.
+#if defined(MEMORY_SANITIZER) && !defined(OS_NACL)
+#include <sanitizer/msan_interface.h>
+
+// Mark a memory region fully initialized.
+// Use this to annotate code that deliberately reads uninitialized data, for
+// example a GC scavenging root set pointers from the stack.
+#define MSAN_UNPOISON(p, s) __msan_unpoison(p, s)
+#else // MEMORY_SANITIZER
+#define MSAN_UNPOISON(p, s)
+#endif // MEMORY_SANITIZER
+
+// Macro useful for writing cross-platform function pointers.
+#if !defined(CDECL)
+#if defined(OS_WIN)
+#define CDECL __cdecl
+#else // defined(OS_WIN)
+#define CDECL
+#endif // defined(OS_WIN)
+#endif // !defined(CDECL)
+
+// Macro for hinting that an expression is likely to be false.
+#if !defined(UNLIKELY)
+#if defined(COMPILER_GCC)
+#define UNLIKELY(x) __builtin_expect(!!(x), 0)
+#else
+#define UNLIKELY(x) (x)
+#endif // defined(COMPILER_GCC)
+#endif // !defined(UNLIKELY)
+
+#endif // BASE_COMPILER_SPECIFIC_H_
diff --git a/perfprofd/quipper/base/logging.cc b/perfprofd/quipper/base/logging.cc
new file mode 100644
index 0000000..cc73d28
--- /dev/null
+++ b/perfprofd/quipper/base/logging.cc
@@ -0,0 +1,110 @@
+//
+// Logging support functions. These are designed to mimic those used in
+// chromium_org/base in terms of interface, but to redirect error to
+// the system log.
+//
+
+#include "quipper/base/logging.h"
+
+#if defined(OS_POSIX)
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#endif
+
+#include <algorithm>
+#include <cstring>
+#include <ctime>
+#include <iomanip>
+#include <ostream>
+#include <string>
+
+#include <android/log.h>
+
+#define LOG_TAG "perf_reader"
+
+namespace logging {
+
+namespace {
+
+int min_log_level = 0;
+
+}
+
+void SetMinLogLevel(int level) {
+ min_log_level = std::min(LOG_FATAL, level);
+}
+
+int GetMinLogLevel() {
+ return min_log_level;
+}
+
+// MSVC doesn't like complex extern templates and DLLs.
+#if !defined(COMPILER_MSVC)
+// Explicit instantiations for commonly used comparisons.
+template std::string* MakeCheckOpString<int, int>(
+ const int&, const int&, const char* names);
+template std::string* MakeCheckOpString<unsigned long, unsigned long>(
+ const unsigned long&, const unsigned long&, const char* names);
+template std::string* MakeCheckOpString<unsigned long, unsigned int>(
+ const unsigned long&, const unsigned int&, const char* names);
+template std::string* MakeCheckOpString<unsigned int, unsigned long>(
+ const unsigned int&, const unsigned long&, const char* names);
+template std::string* MakeCheckOpString<std::string, std::string>(
+ const std::string&, const std::string&, const char* name);
+#endif
+
+LogMessage::LogMessage(const char* file, int line, LogSeverity severity)
+ : severity_(severity), file_(file), line_(line) {
+ Init(file, line);
+}
+
+LogMessage::LogMessage(const char* file, int line, std::string* result)
+ : severity_(LOG_FATAL), file_(file), line_(line) {
+ Init(file, line);
+ stream_ << "Check failed: " << *result;
+ delete result;
+}
+
+LogMessage::LogMessage(const char* file, int line, LogSeverity severity,
+ std::string* result)
+ : severity_(severity), file_(file), line_(line) {
+ Init(file, line);
+ stream_ << "Check failed: " << *result;
+ delete result;
+}
+
+LogMessage::~LogMessage() {
+ stream_ << std::endl;
+ std::string str_newline(stream_.str());
+
+ android_LogPriority priority =
+ (severity_ < 0) ? ANDROID_LOG_VERBOSE : ANDROID_LOG_UNKNOWN;
+ switch (severity_) {
+ case LOG_INFO:
+ priority = ANDROID_LOG_INFO;
+ break;
+ case LOG_WARNING:
+ priority = ANDROID_LOG_WARN;
+ break;
+ case LOG_ERROR:
+ priority = ANDROID_LOG_ERROR;
+ break;
+ case LOG_FATAL:
+ priority = ANDROID_LOG_FATAL;
+ break;
+ }
+ __android_log_write(priority, LOG_TAG, str_newline.c_str());
+
+ if (severity_ == LOG_FATAL) {
+ exit(9);
+ }
+}
+
+void LogMessage::Init(const char* /* file */, int /* line */) {
+}
+
+} // namespace logging
diff --git a/perfprofd/quipper/base/logging.h b/perfprofd/quipper/base/logging.h
new file mode 100644
index 0000000..2851d91
--- /dev/null
+++ b/perfprofd/quipper/base/logging.h
@@ -0,0 +1,671 @@
+
+#ifndef BASE_LOGGING_H_
+#define BASE_LOGGING_H_
+
+#include <cassert>
+#include <string>
+#include <cstring>
+#include <sstream>
+
+#include "quipper/base/macros.h"
+#include "quipper/base/basictypes.h"
+
+//
+// Logging macros designed to mimic those used in chromium_org/base.
+//
+
+// Instructions
+// ------------
+//
+// Make a bunch of macros for logging. The way to log things is to stream
+// things to LOG(<a particular severity level>). E.g.,
+//
+// LOG(INFO) << "Found " << num_cookies << " cookies";
+//
+// You can also do conditional logging:
+//
+// LOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
+//
+// The CHECK(condition) macro is active in both debug and release builds and
+// effectively performs a LOG(FATAL) which terminates the process and
+// generates a crashdump unless a debugger is attached.
+//
+// There are also "debug mode" logging macros like the ones above:
+//
+// DLOG(INFO) << "Found cookies";
+//
+// DLOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
+//
+// All "debug mode" logging is compiled away to nothing for non-debug mode
+// compiles. LOG_IF and development flags also work well together
+// because the code can be compiled away sometimes.
+//
+// We also have
+//
+// LOG_ASSERT(assertion);
+// DLOG_ASSERT(assertion);
+//
+// which is syntactic sugar for {,D}LOG_IF(FATAL, assert fails) << assertion;
+//
+// There are "verbose level" logging macros. They look like
+//
+// VLOG(1) << "I'm printed when you run the program with --v=1 or more";
+// VLOG(2) << "I'm printed when you run the program with --v=2 or more";
+//
+// These always log at the INFO log level (when they log at all).
+// The verbose logging can also be turned on module-by-module. For instance,
+// --vmodule=profile=2,icon_loader=1,browser_*=3,*/chromeos/*=4 --v=0
+// will cause:
+// a. VLOG(2) and lower messages to be printed from profile.{h,cc}
+// b. VLOG(1) and lower messages to be printed from icon_loader.{h,cc}
+// c. VLOG(3) and lower messages to be printed from files prefixed with
+// "browser"
+// d. VLOG(4) and lower messages to be printed from files under a
+// "chromeos" directory.
+// e. VLOG(0) and lower messages to be printed from elsewhere
+//
+// The wildcarding functionality shown by (c) supports both '*' (match
+// 0 or more characters) and '?' (match any single character)
+// wildcards. Any pattern containing a forward or backward slash will
+// be tested against the whole pathname and not just the module.
+// E.g., "*/foo/bar/*=2" would change the logging level for all code
+// in source files under a "foo/bar" directory.
+//
+// There's also VLOG_IS_ON(n) "verbose level" condition macro. To be used as
+//
+// if (VLOG_IS_ON(2)) {
+// // do some logging preparation and logging
+// // that can't be accomplished with just VLOG(2) << ...;
+// }
+//
+// There is also a VLOG_IF "verbose level" condition macro for sample
+// cases, when some extra computation and preparation for logs is not
+// needed.
+//
+// VLOG_IF(1, (size > 1024))
+// << "I'm printed when size is more than 1024 and when you run the "
+// "program with --v=1 or more";
+//
+// We also override the standard 'assert' to use 'DLOG_ASSERT'.
+//
+// Lastly, there is:
+//
+// PLOG(ERROR) << "Couldn't do foo";
+// DPLOG(ERROR) << "Couldn't do foo";
+// PLOG_IF(ERROR, cond) << "Couldn't do foo";
+// DPLOG_IF(ERROR, cond) << "Couldn't do foo";
+// PCHECK(condition) << "Couldn't do foo";
+// DPCHECK(condition) << "Couldn't do foo";
+//
+// which append the last system error to the message in string form (taken from
+// GetLastError() on Windows and errno on POSIX).
+//
+// The supported severity levels for macros that allow you to specify one
+// are (in increasing order of severity) INFO, WARNING, ERROR, and FATAL.
+//
+// Very important: logging a message at the FATAL severity level causes
+// the program to terminate (after the message is logged).
+//
+// There is the special severity of DFATAL, which logs FATAL in debug mode,
+// ERROR in normal mode.
+
+#define BASE_EXPORT
+
+namespace logging {
+
+// Sets the log level. Anything at or above this level will be written to the
+// log file/displayed to the user (if applicable). Anything below this level
+// will be silently ignored. The log level defaults to 0 (everything is logged
+// up to level INFO) if this function is not called.
+// Note that log messages for VLOG(x) are logged at level -x, so setting
+// the min log level to negative values enables verbose logging.
+BASE_EXPORT void SetMinLogLevel(int level);
+
+// Gets the current log level.
+BASE_EXPORT int GetMinLogLevel();
+
+// Gets the VLOG default verbosity level.
+BASE_EXPORT int GetVlogVerbosity();
+
+typedef int LogSeverity;
+const LogSeverity LOG_VERBOSE = -1; // This is level 1 verbosity
+// Note: the log severities are used to index into the array of names,
+// see log_severity_names.
+const LogSeverity LOG_INFO = 0;
+const LogSeverity LOG_WARNING = 1;
+const LogSeverity LOG_ERROR = 2;
+const LogSeverity LOG_FATAL = 3;
+const LogSeverity LOG_NUM_SEVERITIES = 4;
+
+// A few definitions of macros that don't generate much code. These are used
+// by LOG() and LOG_IF, etc. Since these are used all over our code, it's
+// better to have compact code for these operations.
+#define COMPACT_GOOGLE_LOG_EX_INFO(ClassName, ...) \
+ logging::ClassName(__FILE__, __LINE__, logging::LOG_INFO , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_WARNING(ClassName, ...) \
+ logging::ClassName(__FILE__, __LINE__, logging::LOG_WARNING , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_ERROR(ClassName, ...) \
+ logging::ClassName(__FILE__, __LINE__, logging::LOG_ERROR , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_FATAL(ClassName, ...) \
+ logging::ClassName(__FILE__, __LINE__, logging::LOG_FATAL , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_DFATAL(ClassName, ...) \
+ logging::ClassName(__FILE__, __LINE__, logging::LOG_DFATAL , ##__VA_ARGS__)
+
+#define COMPACT_GOOGLE_LOG_INFO \
+ COMPACT_GOOGLE_LOG_EX_INFO(LogMessage)
+#define COMPACT_GOOGLE_LOG_WARNING \
+ COMPACT_GOOGLE_LOG_EX_WARNING(LogMessage)
+#define COMPACT_GOOGLE_LOG_ERROR \
+ COMPACT_GOOGLE_LOG_EX_ERROR(LogMessage)
+#define COMPACT_GOOGLE_LOG_FATAL \
+ COMPACT_GOOGLE_LOG_EX_FATAL(LogMessage)
+#define COMPACT_GOOGLE_LOG_DFATAL \
+ COMPACT_GOOGLE_LOG_EX_DFATAL(LogMessage)
+
+// As special cases, we can assume that LOG_IS_ON(FATAL) always holds. Also,
+// LOG_IS_ON(DFATAL) always holds in debug mode. In particular, CHECK()s will
+// always fire if they fail.
+#define LOG_IS_ON(severity) \
+ ((::logging::LOG_ ## severity) >= ::logging::GetMinLogLevel())
+
+#define VLOG_IS_ON(verboselevel) false
+
+// Helper macro which avoids evaluating the arguments to a stream if
+// the condition doesn't hold.
+#define LAZY_STREAM(stream, condition) \
+ !(condition) ? (void) 0 : ::logging::LogMessageVoidify() & (stream)
+
+// We use the preprocessor's merging operator, "##", so that, e.g.,
+// LOG(INFO) becomes the token COMPACT_GOOGLE_LOG_INFO. There's some funny
+// subtle difference between ostream member streaming functions (e.g.,
+// ostream::operator<<(int) and ostream non-member streaming functions
+// (e.g., ::operator<<(ostream&, string&): it turns out that it's
+// impossible to stream something like a string directly to an unnamed
+// ostream. We employ a neat hack by calling the stream() member
+// function of LogMessage which seems to avoid the problem.
+#define LOG_STREAM(severity) COMPACT_GOOGLE_LOG_ ## severity.stream()
+
+#define LOG(severity) LAZY_STREAM(LOG_STREAM(severity), LOG_IS_ON(severity))
+#define LOG_IF(severity, condition) \
+ LAZY_STREAM(LOG_STREAM(severity), LOG_IS_ON(severity) && (condition))
+
+// The VLOG macros log with negative verbosities.
+#define VLOG_STREAM(verbose_level) \
+ logging::LogMessage(__FILE__, __LINE__, -verbose_level).stream()
+
+#define VLOG(verbose_level) \
+ LAZY_STREAM(VLOG_STREAM(verbose_level), VLOG_IS_ON(verbose_level))
+
+#define VLOG_IF(verbose_level, condition) \
+ LAZY_STREAM(VLOG_STREAM(verbose_level), \
+ VLOG_IS_ON(verbose_level) && (condition))
+
+// TODO(akalin): Add more VLOG variants, e.g. VPLOG.
+
+#define LOG_ASSERT(condition) \
+ LOG_IF(FATAL, !(condition)) << "Assert failed: " #condition ". "
+#define SYSLOG_ASSERT(condition) \
+ SYSLOG_IF(FATAL, !(condition)) << "Assert failed: " #condition ". "
+
+#define PLOG(severity) \
+ LAZY_STREAM(PLOG_STREAM(severity), LOG_IS_ON(severity))
+
+#define PLOG_IF(severity, condition) \
+ LAZY_STREAM(PLOG_STREAM(severity), LOG_IS_ON(severity) && (condition))
+
+// The actual stream used isn't important.
+#define EAT_STREAM_PARAMETERS \
+ true ? (void) 0 : ::logging::LogMessageVoidify() & LOG_STREAM(FATAL)
+
+// CHECK dies with a fatal error if condition is not true. It is *not*
+// controlled by NDEBUG, so the check will be executed regardless of
+// compilation mode.
+//
+// We make sure CHECK et al. always evaluates their arguments, as
+// doing CHECK(FunctionWithSideEffect()) is a common idiom.
+
+#define CHECK(condition) \
+ LAZY_STREAM(LOG_STREAM(FATAL), !(condition)) \
+ << "Check failed: " #condition ". "
+
+#define PCHECK(condition) \
+ LAZY_STREAM(PLOG_STREAM(FATAL), !(condition)) \
+ << "Check failed: " #condition ". "
+
+// Helper macro for binary operators.
+// Don't use this macro directly in your code, use CHECK_EQ et al below.
+//
+// TODO(akalin): Rewrite this so that constructs like if (...)
+// CHECK_EQ(...) else { ... } work properly.
+#define CHECK_OP(name, op, val1, val2) \
+ if (std::string* _result = \
+ logging::Check##name##Impl((val1), (val2), \
+ #val1 " " #op " " #val2)) \
+ logging::LogMessage(__FILE__, __LINE__, _result).stream()
+
+// Build the error message string. This is separate from the "Impl"
+// function template because it is not performance critical and so can
+// be out of line, while the "Impl" code should be inline. Caller
+// takes ownership of the returned string.
+template<class t1, class t2>
+std::string* MakeCheckOpString(const t1& v1, const t2& v2, const char* names) {
+ std::ostringstream ss;
+ ss << names << " (" << v1 << " vs. " << v2 << ")";
+ std::string* msg = new std::string(ss.str());
+ return msg;
+}
+
+// MSVC doesn't like complex extern templates and DLLs.
+#if !defined(COMPILER_MSVC)
+// Commonly used instantiations of MakeCheckOpString<>. Explicitly instantiated
+// in logging.cc.
+extern template BASE_EXPORT std::string* MakeCheckOpString<int, int>(
+ const int&, const int&, const char* names);
+extern template BASE_EXPORT
+std::string* MakeCheckOpString<unsigned long, unsigned long>(
+ const unsigned long&, const unsigned long&, const char* names);
+extern template BASE_EXPORT
+std::string* MakeCheckOpString<unsigned long, unsigned int>(
+ const unsigned long&, const unsigned int&, const char* names);
+extern template BASE_EXPORT
+std::string* MakeCheckOpString<unsigned int, unsigned long>(
+ const unsigned int&, const unsigned long&, const char* names);
+extern template BASE_EXPORT
+std::string* MakeCheckOpString<std::string, std::string>(
+ const std::string&, const std::string&, const char* name);
+#endif
+
+// Helper functions for CHECK_OP macro.
+// The (int, int) specialization works around the issue that the compiler
+// will not instantiate the template version of the function on values of
+// unnamed enum type - see comment below.
+#define DEFINE_CHECK_OP_IMPL(name, op) \
+ template <class t1, class t2> \
+ inline std::string* Check##name##Impl(const t1& v1, const t2& v2, \
+ const char* names) { \
+ if (v1 op v2) return NULL; \
+ else return MakeCheckOpString(v1, v2, names); \
+ } \
+ inline std::string* Check##name##Impl(int v1, int v2, const char* names) { \
+ if (v1 op v2) return NULL; \
+ else return MakeCheckOpString(v1, v2, names); \
+ }
+DEFINE_CHECK_OP_IMPL(EQ, ==)
+DEFINE_CHECK_OP_IMPL(NE, !=)
+DEFINE_CHECK_OP_IMPL(LE, <=)
+DEFINE_CHECK_OP_IMPL(LT, < )
+DEFINE_CHECK_OP_IMPL(GE, >=)
+DEFINE_CHECK_OP_IMPL(GT, > )
+#undef DEFINE_CHECK_OP_IMPL
+
+#define CHECK_EQ(val1, val2) CHECK_OP(EQ, ==, val1, val2)
+#define CHECK_NE(val1, val2) CHECK_OP(NE, !=, val1, val2)
+#define CHECK_LE(val1, val2) CHECK_OP(LE, <=, val1, val2)
+#define CHECK_LT(val1, val2) CHECK_OP(LT, < , val1, val2)
+#define CHECK_GE(val1, val2) CHECK_OP(GE, >=, val1, val2)
+#define CHECK_GT(val1, val2) CHECK_OP(GT, > , val1, val2)
+
+#if defined(NDEBUG)
+#define ENABLE_DLOG 0
+#else
+#define ENABLE_DLOG 1
+#endif
+
+#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
+#define DCHECK_IS_ON 0
+#else
+#define DCHECK_IS_ON 1
+#endif
+
+// Definitions for DLOG et al.
+
+#if ENABLE_DLOG
+
+#define DLOG_IS_ON(severity) LOG_IS_ON(severity)
+#define DLOG_IF(severity, condition) LOG_IF(severity, condition)
+#define DLOG_ASSERT(condition) LOG_ASSERT(condition)
+#define DPLOG_IF(severity, condition) PLOG_IF(severity, condition)
+#define DVLOG_IF(verboselevel, condition) VLOG_IF(verboselevel, condition)
+#define DVPLOG_IF(verboselevel, condition) VPLOG_IF(verboselevel, condition)
+
+#else // ENABLE_DLOG
+
+// If ENABLE_DLOG is off, we want to avoid emitting any references to
+// |condition| (which may reference a variable defined only if NDEBUG
+// is not defined). Contrast this with DCHECK et al., which has
+// different behavior.
+
+#define DLOG_IS_ON(severity) false
+#define DLOG_IF(severity, condition) EAT_STREAM_PARAMETERS
+#define DLOG_ASSERT(condition) EAT_STREAM_PARAMETERS
+#define DPLOG_IF(severity, condition) EAT_STREAM_PARAMETERS
+#define DVLOG_IF(verboselevel, condition) EAT_STREAM_PARAMETERS
+#define DVPLOG_IF(verboselevel, condition) EAT_STREAM_PARAMETERS
+
+#endif // ENABLE_DLOG
+
+// DEBUG_MODE is for uses like
+// if (DEBUG_MODE) foo.CheckThatFoo();
+// instead of
+// #ifndef NDEBUG
+// foo.CheckThatFoo();
+// #endif
+//
+// We tie its state to ENABLE_DLOG.
+enum { DEBUG_MODE = ENABLE_DLOG };
+
+#undef ENABLE_DLOG
+
+#define DLOG(severity) \
+ LAZY_STREAM(LOG_STREAM(severity), DLOG_IS_ON(severity))
+
+#define DPLOG(severity) \
+ LAZY_STREAM(PLOG_STREAM(severity), DLOG_IS_ON(severity))
+
+#define DVLOG(verboselevel) DVLOG_IF(verboselevel, VLOG_IS_ON(verboselevel))
+
+#define DVPLOG(verboselevel) DVPLOG_IF(verboselevel, VLOG_IS_ON(verboselevel))
+
+// Definitions for DCHECK et al.
+
+#if DCHECK_IS_ON
+
+#define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \
+ COMPACT_GOOGLE_LOG_EX_FATAL(ClassName , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_FATAL
+const LogSeverity LOG_DCHECK = LOG_FATAL;
+
+#else // DCHECK_IS_ON
+
+// These are just dummy values.
+#define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \
+ COMPACT_GOOGLE_LOG_EX_INFO(ClassName , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_INFO
+const LogSeverity LOG_DCHECK = LOG_INFO;
+
+#endif // DCHECK_IS_ON
+
+// DCHECK et al. make sure to reference |condition| regardless of
+// whether DCHECKs are enabled; this is so that we don't get unused
+// variable warnings if the only use of a variable is in a DCHECK.
+// This behavior is different from DLOG_IF et al.
+
+#define DCHECK(condition) \
+ LAZY_STREAM(LOG_STREAM(DCHECK), DCHECK_IS_ON && !(condition)) \
+ << "Check failed: " #condition ". "
+
+#define DPCHECK(condition) \
+ LAZY_STREAM(PLOG_STREAM(DCHECK), DCHECK_IS_ON && !(condition)) \
+ << "Check failed: " #condition ". "
+
+// Helper macro for binary operators.
+// Don't use this macro directly in your code, use DCHECK_EQ et al below.
+#define DCHECK_OP(name, op, val1, val2) \
+ if (DCHECK_IS_ON) \
+ if (std::string* _result = \
+ logging::Check##name##Impl((val1), (val2), \
+ #val1 " " #op " " #val2)) \
+ logging::LogMessage( \
+ __FILE__, __LINE__, ::logging::LOG_DCHECK, \
+ _result).stream()
+
+// Equality/Inequality checks - compare two values, and log a
+// LOG_DCHECK message including the two values when the result is not
+// as expected. The values must have operator<<(ostream, ...)
+// defined.
+//
+// You may append to the error message like so:
+// DCHECK_NE(1, 2) << ": The world must be ending!";
+//
+// We are very careful to ensure that each argument is evaluated exactly
+// once, and that anything which is legal to pass as a function argument is
+// legal here. In particular, the arguments may be temporary expressions
+// which will end up being destroyed at the end of the apparent statement,
+// for example:
+// DCHECK_EQ(string("abc")[1], 'b');
+//
+// WARNING: These may not compile correctly if one of the arguments is a pointer
+// and the other is NULL. To work around this, simply static_cast NULL to the
+// type of the desired pointer.
+
+#define DCHECK_EQ(val1, val2) DCHECK_OP(EQ, ==, val1, val2)
+#define DCHECK_NE(val1, val2) DCHECK_OP(NE, !=, val1, val2)
+#define DCHECK_LE(val1, val2) DCHECK_OP(LE, <=, val1, val2)
+#define DCHECK_LT(val1, val2) DCHECK_OP(LT, < , val1, val2)
+#define DCHECK_GE(val1, val2) DCHECK_OP(GE, >=, val1, val2)
+#define DCHECK_GT(val1, val2) DCHECK_OP(GT, > , val1, val2)
+
+#if defined(NDEBUG) && defined(OS_CHROMEOS)
+#define NOTREACHED() LOG(ERROR) << "NOTREACHED() hit in " << \
+ __FUNCTION__ << ". "
+#else
+#define NOTREACHED() DCHECK(false)
+#endif
+
+// Redefine the standard assert to use our nice log files
+#undef assert
+#define assert(x) DLOG_ASSERT(x)
+
+// This class more or less represents a particular log message. You
+// create an instance of LogMessage and then stream stuff to it.
+// When you finish streaming to it, ~LogMessage is called and the
+// full message gets streamed to the appropriate destination.
+//
+// You shouldn't actually use LogMessage's constructor to log things,
+// though. You should use the LOG() macro (and variants thereof)
+// above.
+class BASE_EXPORT LogMessage {
+ public:
+ // Used for LOG(severity).
+ LogMessage(const char* file, int line, LogSeverity severity);
+
+ // Used for CHECK_EQ(), etc. Takes ownership of the given string.
+ // Implied severity = LOG_FATAL.
+ LogMessage(const char* file, int line, std::string* result);
+
+ // Used for DCHECK_EQ(), etc. Takes ownership of the given string.
+ LogMessage(const char* file, int line, LogSeverity severity,
+ std::string* result);
+
+ ~LogMessage();
+
+ std::ostream& stream() { return stream_; }
+
+ private:
+ void Init(const char* file, int line);
+
+ LogSeverity severity_;
+ std::ostringstream stream_;
+ size_t message_start_; // Offset of the start of the message (past prefix
+ // info).
+ // The file and line information passed in to the constructor.
+ const char* file_;
+ const int line_;
+
+#if defined(OS_WIN)
+ // Stores the current value of GetLastError in the constructor and restores
+ // it in the destructor by calling SetLastError.
+ // This is useful since the LogMessage class uses a lot of Win32 calls
+ // that will lose the value of GLE and the code that called the log function
+ // will have lost the thread error value when the log call returns.
+ class SaveLastError {
+ public:
+ SaveLastError();
+ ~SaveLastError();
+
+ unsigned long get_error() const { return last_error_; }
+
+ protected:
+ unsigned long last_error_;
+ };
+
+ SaveLastError last_error_;
+#endif
+
+ DISALLOW_COPY_AND_ASSIGN(LogMessage);
+};
+
+// A non-macro interface to the log facility; (useful
+// when the logging level is not a compile-time constant).
+inline void LogAtLevel(int const log_level, std::string const &msg) {
+ LogMessage(__FILE__, __LINE__, log_level).stream() << msg;
+}
+
+// This class is used to explicitly ignore values in the conditional
+// logging macros. This avoids compiler warnings like "value computed
+// is not used" and "statement has no effect".
+class LogMessageVoidify {
+ public:
+ LogMessageVoidify() { }
+ // This has to be an operator with a precedence lower than << but
+ // higher than ?:
+ void operator&(std::ostream&) { }
+};
+
+#if defined(OS_WIN)
+typedef unsigned long SystemErrorCode;
+#elif defined(OS_POSIX)
+typedef int SystemErrorCode;
+#endif
+
+// Alias for ::GetLastError() on Windows and errno on POSIX. Avoids having to
+// pull in windows.h just for GetLastError() and DWORD.
+BASE_EXPORT SystemErrorCode GetLastSystemErrorCode();
+BASE_EXPORT std::string SystemErrorCodeToString(SystemErrorCode error_code);
+
+#if defined(OS_WIN)
+// Appends a formatted system message of the GetLastError() type.
+class BASE_EXPORT Win32ErrorLogMessage {
+ public:
+ Win32ErrorLogMessage(const char* file,
+ int line,
+ LogSeverity severity,
+ SystemErrorCode err);
+
+ // Appends the error message before destructing the encapsulated class.
+ ~Win32ErrorLogMessage();
+
+ std::ostream& stream() { return log_message_.stream(); }
+
+ private:
+ SystemErrorCode err_;
+ LogMessage log_message_;
+
+ DISALLOW_COPY_AND_ASSIGN(Win32ErrorLogMessage);
+};
+#elif defined(OS_POSIX)
+// Appends a formatted system message of the errno type
+class BASE_EXPORT ErrnoLogMessage {
+ public:
+ ErrnoLogMessage(const char* file,
+ int line,
+ LogSeverity severity,
+ SystemErrorCode err);
+
+ // Appends the error message before destructing the encapsulated class.
+ ~ErrnoLogMessage();
+
+ std::ostream& stream() { return log_message_.stream(); }
+
+ private:
+ SystemErrorCode err_;
+ LogMessage log_message_;
+
+ DISALLOW_COPY_AND_ASSIGN(ErrnoLogMessage);
+};
+#endif // OS_WIN
+
+// Closes the log file explicitly if open.
+// NOTE: Since the log file is opened as necessary by the action of logging
+// statements, there's no guarantee that it will stay closed
+// after this call.
+BASE_EXPORT void CloseLogFile();
+
+// Async signal safe logging mechanism.
+BASE_EXPORT void RawLog(int level, const char* message);
+
+#define RAW_LOG(level, message) logging::RawLog(logging::LOG_ ## level, message)
+
+#define RAW_CHECK(condition) \
+ do { \
+ if (!(condition)) \
+ logging::RawLog(logging::LOG_FATAL, "Check failed: " #condition "\n"); \
+ } while (0)
+
+#if defined(OS_WIN)
+// Returns the default log file path.
+BASE_EXPORT std::wstring GetLogFileFullPath();
+#endif
+
+} // namespace logging
+
+// Note that "The behavior of a C++ program is undefined if it adds declarations
+// or definitions to namespace std or to a namespace within namespace std unless
+// otherwise specified." --C++11[namespace.std]
+//
+// We've checked that this particular definition has the intended behavior on
+// our implementations, but it's prone to breaking in the future, and please
+// don't imitate this in your own definitions without checking with some
+// standard library experts.
+namespace std {
+// These functions are provided as a convenience for logging, which is where we
+// use streams (it is against Google style to use streams in other places). It
+// is designed to allow you to emit non-ASCII Unicode strings to the log file,
+// which is normally ASCII. It is relatively slow, so try not to use it for
+// common cases. Non-ASCII characters will be converted to UTF-8 by these
+// operators.
+BASE_EXPORT std::ostream& operator<<(std::ostream& out, const wchar_t* wstr);
+inline std::ostream& operator<<(std::ostream& out, const std::wstring& wstr) {
+ return out << wstr.c_str();
+}
+} // namespace std
+
+// The NOTIMPLEMENTED() macro annotates codepaths which have
+// not been implemented yet.
+//
+// The implementation of this macro is controlled by NOTIMPLEMENTED_POLICY:
+// 0 -- Do nothing (stripped by compiler)
+// 1 -- Warn at compile time
+// 2 -- Fail at compile time
+// 3 -- Fail at runtime (DCHECK)
+// 4 -- [default] LOG(ERROR) at runtime
+// 5 -- LOG(ERROR) at runtime, only once per call-site
+
+#ifndef NOTIMPLEMENTED_POLICY
+#if defined(OS_ANDROID) && defined(OFFICIAL_BUILD)
+#define NOTIMPLEMENTED_POLICY 0
+#else
+// WebView: Hide NOTIMPLEMENTED entirely in Android release branch.
+#define NOTIMPLEMENTED_POLICY 0
+#endif
+#endif
+
+#if defined(COMPILER_GCC)
+// On Linux, with GCC, we can use __PRETTY_FUNCTION__ to get the demangled name
+// of the current function in the NOTIMPLEMENTED message.
+#define NOTIMPLEMENTED_MSG "Not implemented reached in " << __PRETTY_FUNCTION__
+#else
+#define NOTIMPLEMENTED_MSG "NOT IMPLEMENTED"
+#endif
+
+#if NOTIMPLEMENTED_POLICY == 0
+#define NOTIMPLEMENTED() EAT_STREAM_PARAMETERS
+#elif NOTIMPLEMENTED_POLICY == 1
+// TODO, figure out how to generate a warning
+#define NOTIMPLEMENTED() COMPILE_ASSERT(false, NOT_IMPLEMENTED)
+#elif NOTIMPLEMENTED_POLICY == 2
+#define NOTIMPLEMENTED() COMPILE_ASSERT(false, NOT_IMPLEMENTED)
+#elif NOTIMPLEMENTED_POLICY == 3
+#define NOTIMPLEMENTED() NOTREACHED()
+#elif NOTIMPLEMENTED_POLICY == 4
+#define NOTIMPLEMENTED() LOG(ERROR) << NOTIMPLEMENTED_MSG
+#elif NOTIMPLEMENTED_POLICY == 5
+#define NOTIMPLEMENTED() do {\
+ static bool logged_once = false;\
+ LOG_IF(ERROR, !logged_once) << NOTIMPLEMENTED_MSG;\
+ logged_once = true;\
+} while(0);\
+EAT_STREAM_PARAMETERS
+#endif
+
+#endif // BASE_LOGGING_H_
diff --git a/perfprofd/quipper/base/macros.h b/perfprofd/quipper/base/macros.h
new file mode 100644
index 0000000..57eaa81
--- /dev/null
+++ b/perfprofd/quipper/base/macros.h
@@ -0,0 +1,257 @@
+// Copyright 2014 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.
+
+// This file contains macros and macro-like constructs (e.g., templates) that
+// are commonly used throughout Chromium source. (It may also contain things
+// that are closely related to things that are commonly used that belong in this
+// file.)
+
+#ifndef BASE_MACROS_H_
+#define BASE_MACROS_H_
+
+#include <stddef.h> // For size_t.
+#include <string.h> // For memcpy.
+
+#include "quipper/base/compiler_specific.h" // For ALLOW_UNUSED.
+
+// Put this in the private: declarations for a class to be uncopyable.
+#define DISALLOW_COPY(TypeName) \
+ TypeName(const TypeName&)
+
+// Put this in the private: declarations for a class to be unassignable.
+#define DISALLOW_ASSIGN(TypeName) \
+ void operator=(const TypeName&)
+
+// A macro to disallow the copy constructor and operator= functions
+// This should be used in the private: declarations for a class
+#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
+ TypeName(const TypeName&); \
+ void operator=(const TypeName&)
+
+// An older, deprecated, politically incorrect name for the above.
+// NOTE: The usage of this macro was banned from our code base, but some
+// third_party libraries are yet using it.
+// TODO(tfarina): Figure out how to fix the usage of this macro in the
+// third_party libraries and get rid of it.
+#define DISALLOW_EVIL_CONSTRUCTORS(TypeName) DISALLOW_COPY_AND_ASSIGN(TypeName)
+
+// A macro to disallow all the implicit constructors, namely the
+// default constructor, copy constructor and operator= functions.
+//
+// This should be used in the private: declarations for a class
+// that wants to prevent anyone from instantiating it. This is
+// especially useful for classes containing only static methods.
+#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
+ TypeName(); \
+ DISALLOW_COPY_AND_ASSIGN(TypeName)
+
+// The arraysize(arr) macro returns the # of elements in an array arr.
+// The expression is a compile-time constant, and therefore can be
+// used in defining new arrays, for example. If you use arraysize on
+// a pointer by mistake, you will get a compile-time error.
+//
+// One caveat is that arraysize() doesn't accept any array of an
+// anonymous type or a type defined inside a function. In these rare
+// cases, you have to use the unsafe ARRAYSIZE_UNSAFE() macro below. This is
+// due to a limitation in C++'s template system. The limitation might
+// eventually be removed, but it hasn't happened yet.
+
+// This template function declaration is used in defining arraysize.
+// Note that the function doesn't need an implementation, as we only
+// use its type.
+template <typename T, size_t N>
+char (&ArraySizeHelper(T (&array)[N]))[N];
+
+// That gcc wants both of these prototypes seems mysterious. VC, for
+// its part, can't decide which to use (another mystery). Matching of
+// template overloads: the final frontier.
+#ifndef _MSC_VER
+template <typename T, size_t N>
+char (&ArraySizeHelper(const T (&array)[N]))[N];
+#endif
+
+#define arraysize(array) (sizeof(ArraySizeHelper(array)))
+
+// ARRAYSIZE_UNSAFE performs essentially the same calculation as arraysize,
+// but can be used on anonymous types or types defined inside
+// functions. It's less safe than arraysize as it accepts some
+// (although not all) pointers. Therefore, you should use arraysize
+// whenever possible.
+//
+// The expression ARRAYSIZE_UNSAFE(a) is a compile-time constant of type
+// size_t.
+//
+// ARRAYSIZE_UNSAFE catches a few type errors. If you see a compiler error
+//
+// "warning: division by zero in ..."
+//
+// when using ARRAYSIZE_UNSAFE, you are (wrongfully) giving it a pointer.
+// You should only use ARRAYSIZE_UNSAFE on statically allocated arrays.
+//
+// The following comments are on the implementation details, and can
+// be ignored by the users.
+//
+// ARRAYSIZE_UNSAFE(arr) works by inspecting sizeof(arr) (the # of bytes in
+// the array) and sizeof(*(arr)) (the # of bytes in one array
+// element). If the former is divisible by the latter, perhaps arr is
+// indeed an array, in which case the division result is the # of
+// elements in the array. Otherwise, arr cannot possibly be an array,
+// and we generate a compiler error to prevent the code from
+// compiling.
+//
+// Since the size of bool is implementation-defined, we need to cast
+// !(sizeof(a) & sizeof(*(a))) to size_t in order to ensure the final
+// result has type size_t.
+//
+// This macro is not perfect as it wrongfully accepts certain
+// pointers, namely where the pointer size is divisible by the pointee
+// size. Since all our code has to go through a 32-bit compiler,
+// where a pointer is 4 bytes, this means all pointers to a type whose
+// size is 3 or greater than 4 will be (righteously) rejected.
+
+#define ARRAYSIZE_UNSAFE(a) \
+ ((sizeof(a) / sizeof(*(a))) / \
+ static_cast<size_t>(!(sizeof(a) % sizeof(*(a)))))
+
+
+// Use implicit_cast as a safe version of static_cast or const_cast
+// for upcasting in the type hierarchy (i.e. casting a pointer to Foo
+// to a pointer to SuperclassOfFoo or casting a pointer to Foo to
+// a const pointer to Foo).
+// When you use implicit_cast, the compiler checks that the cast is safe.
+// Such explicit implicit_casts are necessary in surprisingly many
+// situations where C++ demands an exact type match instead of an
+// argument type convertible to a target type.
+//
+// The From type can be inferred, so the preferred syntax for using
+// implicit_cast is the same as for static_cast etc.:
+//
+// implicit_cast<ToType>(expr)
+//
+// implicit_cast would have been part of the C++ standard library,
+// but the proposal was submitted too late. It will probably make
+// its way into the language in the future.
+template<typename To, typename From>
+inline To implicit_cast(From const &f) {
+ return f;
+}
+
+// The COMPILE_ASSERT macro can be used to verify that a compile time
+// expression is true. For example, you could use it to verify the
+// size of a static array:
+//
+// COMPILE_ASSERT(ARRAYSIZE_UNSAFE(content_type_names) == CONTENT_NUM_TYPES,
+// content_type_names_incorrect_size);
+//
+// or to make sure a struct is smaller than a certain size:
+//
+// COMPILE_ASSERT(sizeof(foo) < 128, foo_too_large);
+//
+// The second argument to the macro is the name of the variable. If
+// the expression is false, most compilers will issue a warning/error
+// containing the name of the variable.
+
+#undef COMPILE_ASSERT
+#define COMPILE_ASSERT(expr, msg) static_assert(expr, #msg)
+
+// bit_cast<Dest,Source> is a template function that implements the
+// equivalent of "*reinterpret_cast<Dest*>(&source)". We need this in
+// very low-level functions like the protobuf library and fast math
+// support.
+//
+// float f = 3.14159265358979;
+// int i = bit_cast<int32>(f);
+// // i = 0x40490fdb
+//
+// The classical address-casting method is:
+//
+// // WRONG
+// float f = 3.14159265358979; // WRONG
+// int i = * reinterpret_cast<int*>(&f); // WRONG
+//
+// The address-casting method actually produces undefined behavior
+// according to ISO C++ specification section 3.10 -15 -. Roughly, this
+// section says: if an object in memory has one type, and a program
+// accesses it with a different type, then the result is undefined
+// behavior for most values of "different type".
+//
+// This is true for any cast syntax, either *(int*)&f or
+// *reinterpret_cast<int*>(&f). And it is particularly true for
+// conversions between integral lvalues and floating-point lvalues.
+//
+// The purpose of 3.10 -15- is to allow optimizing compilers to assume
+// that expressions with different types refer to different memory. gcc
+// 4.0.1 has an optimizer that takes advantage of this. So a
+// non-conforming program quietly produces wildly incorrect output.
+//
+// The problem is not the use of reinterpret_cast. The problem is type
+// punning: holding an object in memory of one type and reading its bits
+// back using a different type.
+//
+// The C++ standard is more subtle and complex than this, but that
+// is the basic idea.
+//
+// Anyways ...
+//
+// bit_cast<> calls memcpy() which is blessed by the standard,
+// especially by the example in section 3.9 . Also, of course,
+// bit_cast<> wraps up the nasty logic in one place.
+//
+// Fortunately memcpy() is very fast. In optimized mode, with a
+// constant size, gcc 2.95.3, gcc 4.0.1, and msvc 7.1 produce inline
+// code with the minimal amount of data movement. On a 32-bit system,
+// memcpy(d,s,4) compiles to one load and one store, and memcpy(d,s,8)
+// compiles to two loads and two stores.
+//
+// I tested this code with gcc 2.95.3, gcc 4.0.1, icc 8.1, and msvc 7.1.
+//
+// WARNING: if Dest or Source is a non-POD type, the result of the memcpy
+// is likely to surprise you.
+
+template <class Dest, class Source>
+inline Dest bit_cast(const Source& source) {
+ COMPILE_ASSERT(sizeof(Dest) == sizeof(Source), VerifySizesAreEqual);
+
+ Dest dest;
+ memcpy(&dest, &source, sizeof(dest));
+ return dest;
+}
+
+// Used to explicitly mark the return value of a function as unused. If you are
+// really sure you don't want to do anything with the return value of a function
+// that has been marked WARN_UNUSED_RESULT, wrap it with this. Example:
+//
+// scoped_ptr<MyType> my_var = ...;
+// if (TakeOwnership(my_var.get()) == SUCCESS)
+// ignore_result(my_var.release());
+//
+template<typename T>
+inline void ignore_result(const T&) {
+}
+
+// The following enum should be used only as a constructor argument to indicate
+// that the variable has static storage class, and that the constructor should
+// do nothing to its state. It indicates to the reader that it is legal to
+// declare a static instance of the class, provided the constructor is given
+// the base::LINKER_INITIALIZED argument. Normally, it is unsafe to declare a
+// static variable that has a constructor or a destructor because invocation
+// order is undefined. However, IF the type can be initialized by filling with
+// zeroes (which the loader does for static variables), AND the destructor also
+// does nothing to the storage, AND there are no virtual methods, then a
+// constructor declared as
+// explicit MyClass(base::LinkerInitialized x) {}
+// and invoked as
+// static MyClass my_variable_name(base::LINKER_INITIALIZED);
+namespace base {
+enum LinkerInitialized { LINKER_INITIALIZED };
+
+// Use these to declare and define a static local variable (static T;) so that
+// it is leaked so that its destructors are not called at exit. If you need
+// thread-safe initialization, use base/lazy_instance.h instead.
+#define CR_DEFINE_STATIC_LOCAL(type, name, arguments) \
+ static type& name = *new type arguments
+
+} // base
+
+#endif // BASE_MACROS_H_
diff --git a/perfprofd/quipper/base/port.h b/perfprofd/quipper/base/port.h
new file mode 100644
index 0000000..58f4969
--- /dev/null
+++ b/perfprofd/quipper/base/port.h
@@ -0,0 +1,48 @@
+// Copyright (c) 2006-2008 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 BASE_PORT_H_
+#define BASE_PORT_H_
+
+#include <stdarg.h>
+#include "quipper/build/build_config.h"
+
+// DEPRECATED: Use ...LL and ...ULL suffixes.
+// TODO(viettrungluu): Delete these. These are only here until |GG_(U)INT64_C|
+// are deleted (some other header files (re)define |GG_(U)INT64_C|, so our
+// definitions of them must exactly match theirs).
+#ifdef COMPILER_MSVC
+#define GG_LONGLONG(x) x##I64
+#define GG_ULONGLONG(x) x##UI64
+#else
+#define GG_LONGLONG(x) x##LL
+#define GG_ULONGLONG(x) x##ULL
+#endif
+
+// DEPRECATED: In Chromium, we force-define __STDC_CONSTANT_MACROS, so you can
+// just use the regular (U)INTn_C macros from <stdint.h>.
+// TODO(viettrungluu): Remove the remaining GG_(U)INTn_C macros.
+#define GG_INT64_C(x) GG_LONGLONG(x)
+#define GG_UINT64_C(x) GG_ULONGLONG(x)
+
+// It's possible for functions that use a va_list, such as StringPrintf, to
+// invalidate the data in it upon use. The fix is to make a copy of the
+// structure before using it and use that copy instead. va_copy is provided
+// for this purpose. MSVC does not provide va_copy, so define an
+// implementation here. It is not guaranteed that assignment is a copy, so the
+// StringUtil.VariableArgsFunc unit test tests this capability.
+#if defined(COMPILER_GCC)
+#define GG_VA_COPY(a, b) (va_copy(a, b))
+#elif defined(COMPILER_MSVC)
+#define GG_VA_COPY(a, b) (a = b)
+#endif
+
+// Define an OS-neutral wrapper for shared library entry points
+#if defined(OS_WIN)
+#define API_CALL __stdcall
+#else
+#define API_CALL
+#endif
+
+#endif // BASE_PORT_H_