如何读取 Xcode 6.1 Instruments .trace 文件？

Question

我一直在尝试读取 .trace 文件，该文件是我使用 custom 工具模板生成的（工具：Automator, Allocations, Leaks) 使用 Instruments.

我在这个 Whosebug answer. Basically the author created a custom Objective-C program(Traced) 中找到的最佳帮助是读取特定类型的 Apples .trace 文件（工具：OpenGL ES 驱动程序）。他的回答是针对 XCode 4.6.

代码仍然适用于 XCode 6.1，但跟踪文件似乎略有变化。您必须在 .trace 包中找到 *.run.zip 文件并将其解压缩。在提取的文件夹中，您现在必须找到 *.run 文件。 .trace 包中有几个 *.run.zip 文件；每个用过的仪器一个。

只是运行 Traced 程序给我一个 uncaught exception 'NSArchiverArchiveInconsistency', reason: '*** class error for 'XRObjectAllocRun'-错误。

最初很容易找出这个错误。我所要做的就是实现缺失的 class XRObjectAllocRun;平行于 XRRun 或 XRVideoCardRun class 中的示例 XRRun.m.

这是我的进展和卡住的地方：

#import "XRObjectAllocRun.h"

@implementation XRObjectAllocRun
- (id)initWithCoder:(NSCoder *)decoder
{
    if((self = [super init]))
    {   
        NSObject *a = [decoder decodeObject];
        NSObject *b = [decoder decodeObject];
        NSObject *c = [decoder decodeObject];
        NSObject *d = [decoder decodeObject];
        NSObject *e = [decoder decodeObject];
        NSObject *f = [decoder decodeObject];
        NSObject *g = [decoder decodeObject];
        NSObject *h = [decoder decodeObject];
        NSObject *i = [decoder decodeObject];
//        NSObject *j = [decoder decodeObject];
//        NSObject *k = [decoder decodeObject];   
        NSLog(@"test");
    }
    return self;
}
@end

基本上我卡在逆向工程 XRObjectAllocRun class。但无论我解码多少对象或小对象，我总是会收到以下异常：uncaught exception 'NSArchiverArchiveInconsistency', reason: '*** NSUnarchiver: inconsistency between written and read data for object 0x100112750'

如果您取消注释最后两个 decode 语句，程序将崩溃并出现此异常：uncaught exception 'NSArchiverArchiveInconsistency', reason: '*** file inconsistency: read 'i', expecting '@''.

有谁知道 Apples XRObjectAllocRun class 的签名吗？此 class 用于 Allocations 工具。

任何帮助都会很棒！

更新

我玩弄 Swift 并翻译了整个 *.trace-reader - 它失败并出现完全相同的错误:

import Foundation
import Cocoa

@objc(XRObjectAllocRun)
class XRObjectAllocRun: NSObject {
    func initWithCoder(decoder:NSCoder){
        var x = decoder.decodeObject()
        // this is where things start breaking...
    }
}

@objc(XRRun)
class XRRun: NSObject {
    // to be implemented    
}

@objc(XRTrackSegment)
class XRTrackSegment: NSObject {
    func initWithCoder(decoder:NSCoder)->NSString{
        var a = decoder.decodeObject()?.integerValue
        var b = decoder.decodeObject()?.integerValue
        var c = decoder.decodeObject()?.integerValue
        var d = decoder.decodeObject()?.integerValue
        var e = decoder.decodeObject()

        return "test"
    }
}

@objc(PFTTrackSegment)
class PFTTrackSegment: NSObject {
    func initWithCoder(decoder:NSCoder){
        var a = decoder.decodeObject()?.integerValue
        var b = decoder.decodeObject()?.integerValue
        var c = decoder.decodeObject()?.integerValue
        var d = decoder.decodeObject()?.integerValue
        var e = decoder.decodeObject()?.integerValue
        var f = decoder.decodeObject()?.integerValue
    }
}

// parse command line
var traceFilePath = Process.arguments[1]
println("input: \(traceFilePath)")

var traceFile = NSURL(fileURLWithPath: traceFilePath)
var error:NSError?

// check if the file exists
if (traceFile?.checkResourceIsReachableAndReturnError(&error) == false){
    // file does not exist or cannot be accessed
    println("\(error)")
    exit(1)
}

var rawData = NSData(contentsOfURL: traceFile!)
var data = NSUnarchiver(forReadingWithData: rawData!)
var decodedObject: AnyObject? = data?.decodeObject()
println("\(decodedObject)")

Answer 1

这里是XRObjectAllocRunclass

的签名

#import "XRRun.h"

#import "SymbolAwareRun.h"
#import "XRCallTreeDataSource.h"
#import "XRSourceQuery.h"

@class NSMutableArray, NSMutableDictionary, NSString, XRHeapGeneration, XROAEventSummary, XRObjectAllocRunSharedData;

@interface XRObjectAllocRun : XRRun <SymbolAwareRun, XRSourceQuery, XRCallTreeDataSource>
{
    XRObjectAllocRunSharedData *_sharedData;
    NSMutableArray *_allStats;
    NSMutableDictionary *_statsForCategory;
    NSMutableDictionary *_categoryIDForName;
    XROAEventSummary *_scaleStats;
    NSMutableArray *_generations;
    struct XRTimeRange _filterTimeRange;
    unsigned int _filterMinEventID;
    unsigned int _filterMaxEventID;
    unsigned long long _nextGenNumber;
    NSMutableDictionary *_samplesByCategoryNumber;
    unsigned long long _catNumIndex;
    struct XRTimeRange _currentStatsFilterRange;
    int _lifecycleFilter;
    int _allocationTypeFilter;
    unsigned int *_quickEventCacheIds;
    id *_quickEventCache;
    XRHeapGeneration *_activeGeneration;
}

+ (void)initialize;
- (id)operation:(id)arg1 commentsForSymbol:(id)arg2 inSourceManager:(id)arg3 callTreeInformation:(id)arg4;
- (id)provideCategories;
- (id)backtracesForCategory:(id)arg1 timeRange:(struct XRTimeRange)arg2 savedIndex:(unsigned long long *)arg3;
- (void)_configureCallTreeForAllocationType:(int)arg1;
- (id)symbolsForEvent:(id)arg1 reverseOrder:(BOOL)arg2;
- (id)backtraceRepository;
- (BOOL)eventIsLiveInCurrentTimeRange:(id)arg1;
- (unsigned int)uncategorizedCount;
- (unsigned int)countOfObjectEventsForCategory:(unsigned int)arg1;
- (void)enumerateObjectEventsForCategory:(unsigned int)arg1 skipToIndex:(unsigned int)arg2 withBlock:(CDUnknownBlockType)arg3;
- (BOOL)_applyLifecycleFilterToEvent:(id)arg1;
- (id)zombieEvent;
- (id)eventForIdentifier:(unsigned int)arg1;
- (BOOL)loadDTPerformanceSessionDataFromPaths:(id)arg1 error:(id *)arg2;
- (void)updateGenerations;
- (void)deleteGeneration:(id)arg1;
- (void)moveGeneration:(id)arg1 toTime:(unsigned long long)arg2;
- (void)setActiveGeneration:(id)arg1;
- (id)generationAtTime:(unsigned long long)arg1;
- (id)generations;
- (id)nextGenerationIdentifier;
- (void)createGenerationAtTime:(unsigned long long)arg1;
- (void)removeFlag:(id)arg1;
- (struct XRTimeRange)_displayTimeFilter;
- (BOOL)_isTimeScoped;
- (BOOL)useTypeFilteringRules:(id)arg1;
- (void)setAllocationTypeFilter:(int)arg1;
- (void)setLifecycleFilter:(int)arg1;
- (struct XRTimeRange)selectedTimeRange;
- (void)setSelectedTimeRange:(struct XRTimeRange)arg1;
- (id)categoryNameForIdentifier:(unsigned int)arg1;
- (id)globalStats;
- (id)scalingStats;
- (void)_clearStats;
- (void)allowEventReuse;
- (void)refreshStatsForActiveTimeFilter;
- (void)_updateStatsWithEventIdentifier:(unsigned int)arg1 category:(unsigned int)arg2 type:(unsigned int)arg3 size:(int)arg4 pastEvent:(unsigned int)arg5 summaryMap:(id *)arg6 maxCat:(unsigned int)arg7;
- (id)_statsObjectForCategoryID:(unsigned int)arg1;
- (void)_changeStatsByTimestampRange:(struct XRTimeRange)arg1 overallRange:(struct XRTimeRange)arg2 startID:(unsigned int)arg3 endID:(unsigned int)arg4;
- (id *)_createCategorySummaryMapWithMaximum:(unsigned int)arg1;
- (void)_validateGlobalStatsForTimeRange:(struct XRTimeRange)arg1;
- (void)_recomputeGlobalStats;
- (BOOL)discardsLifeCycleComplete;
- (unsigned long long)lastTimestamp;
- (id)sharedData;
- (void)setRecordMode:(int)arg1;
- (void)setDiscardsLifeCycleComplete:(BOOL)arg1;
- (void)setTargetDevice:(id)arg1 pid:(int)arg2 repository:(id)arg3;
- (id)initWithCoder:(id)arg1;
- (void)encodeWithCoder:(id)arg1;
- (void)dealloc;
- (id)init;

// Remaining properties
@property(readonly, copy) NSString *debugDescription;
@property(readonly, copy) NSString *description;
@property(readonly) unsigned long long hash;
@property(readonly) Class superclass;

@end

如果您需要，我已经上传了其他 classes here 的签名。

无需在 Swift 中声明必需的 classes，您只需将 headers 从存档导入桥接 header.

Answer 2

我成功了。 Here 是 git 项目。

如何读取 Xcode 6.1 Instruments .trace 文件？

How to read a Xcode 6.1 Instruments .trace file?

xcode

objective-c

instruments

ios

swift