webkit text width callstack 看了想哭的调用堆栈

* thread #1: tid = 0x1d07, 0x0000000103089b43 WebCore`WebCore::FractionalLayoutSize::width() const + 19 at FractionalLayoutSize.h:58, stop reason = step in

frame #0: 0x0000000103089b43 WebCore`WebCore::FractionalLayoutSize::width() const + 19 at FractionalLayoutSize.h:58

frame #1: 0x0000000103087c83 WebCore`WebCore::FractionalLayoutRect::width() const + 35 at FractionalLayoutRect.h:77

frame #2: 0x000000010308b063 WebCore`WebCore::RenderBox::width() const + 35 at RenderBox.h:55

frame #3: 0x0000000104370e2b WebCore`WebCore::RenderBox::clientWidth() const + 43 at RenderBox.cpp:340

frame #4: 0x00000001038c1e4b WebCore`WebCore::RenderBox::contentWidth() const + 43 at RenderBox.h:189

frame #5: 0x00000001042f502c WebCore`WebCore::RenderBox::contentLogicalWidth() const + 76 at RenderBox.h:191

frame #6: 0x00000001042f4ebc WebCore`WebCore::RenderBox::availableLogicalWidth() const + 28 at RenderBox.h:412

frame #7: 0x0000000104317199 WebCore`WebCore::RenderBlock::availableLogicalWidth() const + 89 at RenderBlock.cpp:5142

frame #8: 0x000000010431393c WebCore`WebCore::RenderBlock::logicalRightOffsetForContent(WebCore::RenderRegion*, WebCore::FractionalLayoutUnit) const + 348 at RenderBlock.cpp:4162

frame #9: 0x000000010432a6f1 WebCore`WebCore::RenderBlock::logicalRightOffsetForContent(WebCore::FractionalLayoutUnit) const + 97 at RenderBlock.h:389

frame #10: 0x00000001043296bb WebCore`WebCore::RenderBlock::logicalRightOffsetForLine(WebCore::FractionalLayoutUnit, bool, WebCore::FractionalLayoutUnit) const + 91 at RenderBlock.h:177

frame #11: 0x0000000104367fdc WebCore`WebCore::LineWidth::updateAvailableWidth() + 332 at RenderBlockLineLayout.cpp:162

frame #12: 0x0000000104367e85 WebCore`WebCore::LineWidth::LineWidth(WebCore::RenderBlock*, bool) + 261 at RenderBlockLineLayout.cpp:96

frame #13: 0x000000010436277c WebCore`WebCore::LineWidth::LineWidth(WebCore::RenderBlock*, bool) + 44 at RenderBlockLineLayout.cpp:97

frame #14: 0x0000000104356c4e WebCore`WebCore::RenderBlock::LineBreaker::nextLineBreak(WebCore::BidiResolver<WebCore::InlineIterator, WebCore::BidiRun>&, WebCore::LineInfo&, WebCore::RenderBlock::RenderTextInfo&, WebCore::RenderBlock::FloatingObject*, unsigned int, WTF::Vector<WebCore::WordMeasurement, 64ul>&) + 302 at RenderBlockLineLayout.cpp:2348

frame #15: 0x0000000104354f2f WebCore`WebCore::RenderBlock::layoutRunsAndFloatsInRange(WebCore::LineLayoutState&, WebCore::BidiResolver<WebCore::InlineIterator, WebCore::BidiRun>&, WebCore::InlineIterator const&, WebCore::BidiStatus const&, unsigned int) + 1503 at RenderBlockLineLayout.cpp:1444

frame #16: 0x0000000104353ab8 WebCore`WebCore::RenderBlock::layoutRunsAndFloats(WebCore::LineLayoutState&, bool) + 1272 at RenderBlockLineLayout.cpp:1375

frame #17: 0x000000010435b257 WebCore`WebCore::RenderBlock::layoutInlineChildren(bool, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1911 at RenderBlockLineLayout.cpp:1733

frame #18: 0x00000001042fc294 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1396 at RenderBlock.cpp:1561

frame #19: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #20: 0x0000000103765826 WebCore`WebCore::RenderObject::layoutIfNeeded() + 54 at RenderObject.h:683

frame #21: 0x00000001042ffa61 WebCore`WebCore::RenderBlock::layoutPositionedObjects(bool) + 673 at RenderBlock.cpp:2688

frame #22: 0x00000001042fc70c WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 2540 at RenderBlock.cpp:1594

frame #23: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #24: 0x00000001043082fc WebCore`WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1324 at RenderBlock.cpp:2491

frame #25: 0x00000001042fec84 WebCore`WebCore::RenderBlock::layoutBlockChildren(bool, WebCore::FractionalLayoutUnit&) + 1316 at RenderBlock.cpp:2427

frame #26: 0x00000001042fc2b7 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1431 at RenderBlock.cpp:1563

frame #27: 0x000000010454c38b WebCore`WebCore::RenderTableCell::layout() + 139 at RenderTableCell.cpp:246

frame #28: 0x000000010455577f WebCore`WebCore::RenderTableRow::layout() + 703 at RenderTableRow.cpp:170

frame #29: 0x0000000103765826 WebCore`WebCore::RenderObject::layoutIfNeeded() + 54 at RenderObject.h:683

frame #30: 0x00000001045581ac WebCore`WebCore::RenderTableSection::layout() + 1100 at RenderTableSection.cpp:393

frame #31: 0x0000000103765826 WebCore`WebCore::RenderObject::layoutIfNeeded() + 54 at RenderObject.h:683

frame #32: 0x0000000104542080 WebCore`WebCore::RenderTable::layout() + 1472 at RenderTable.cpp:407

frame #33: 0x00000001043082fc WebCore`WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1324 at RenderBlock.cpp:2491

frame #34: 0x00000001042fec84 WebCore`WebCore::RenderBlock::layoutBlockChildren(bool, WebCore::FractionalLayoutUnit&) + 1316 at RenderBlock.cpp:2427

frame #35: 0x00000001042fc2b7 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1431 at RenderBlock.cpp:1563

frame #36: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #37: 0x00000001043082fc WebCore`WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1324 at RenderBlock.cpp:2491

frame #38: 0x00000001042fec84 WebCore`WebCore::RenderBlock::layoutBlockChildren(bool, WebCore::FractionalLayoutUnit&) + 1316 at RenderBlock.cpp:2427

frame #39: 0x00000001042fc2b7 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1431 at RenderBlock.cpp:1563

frame #40: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #41: 0x00000001043082fc WebCore`WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1324 at RenderBlock.cpp:2491

frame #42: 0x00000001042fec84 WebCore`WebCore::RenderBlock::layoutBlockChildren(bool, WebCore::FractionalLayoutUnit&) + 1316 at RenderBlock.cpp:2427

frame #43: 0x00000001042fc2b7 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1431 at RenderBlock.cpp:1563

frame #44: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #45: 0x0000000103765826 WebCore`WebCore::RenderObject::layoutIfNeeded() + 54 at RenderObject.h:683

frame #46: 0x000000010435b220 WebCore`WebCore::RenderBlock::layoutInlineChildren(bool, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1856 at RenderBlockLineLayout.cpp:1731

frame #47: 0x00000001042fc294 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1396 at RenderBlock.cpp:1561

frame #48: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #49: 0x00000001043082fc WebCore`WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1324 at RenderBlock.cpp:2491

frame #50: 0x00000001042fec84 WebCore`WebCore::RenderBlock::layoutBlockChildren(bool, WebCore::FractionalLayoutUnit&) + 1316 at RenderBlock.cpp:2427

frame #51: 0x00000001042fc2b7 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1431 at RenderBlock.cpp:1563

frame #52: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #53: 0x00000001043082fc WebCore`WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1324 at RenderBlock.cpp:2491

frame #54: 0x00000001042fec84 WebCore`WebCore::RenderBlock::layoutBlockChildren(bool, WebCore::FractionalLayoutUnit&) + 1316 at RenderBlock.cpp:2427

frame #55: 0x00000001042fc2b7 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1431 at RenderBlock.cpp:1563

frame #56: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #57: 0x00000001043082fc WebCore`WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, WebCore::FractionalLayoutUnit&, WebCore::FractionalLayoutUnit&) + 1324 at RenderBlock.cpp:2491

frame #58: 0x00000001042fec84 WebCore`WebCore::RenderBlock::layoutBlockChildren(bool, WebCore::FractionalLayoutUnit&) + 1316 at RenderBlock.cpp:2427

frame #59: 0x00000001042fc2b7 WebCore`WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit) + 1431 at RenderBlock.cpp:1563

frame #60: 0x00000001042fb32e WebCore`WebCore::RenderBlock::layout() + 126 at RenderBlock.cpp:1389

frame #61: 0x000000010459d8c4 WebCore`WebCore::RenderView::layoutContent(WebCore::LayoutState const&) + 116 at RenderView.cpp:140

frame #62: 0x000000010459dfad WebCore`WebCore::RenderView::layout() + 1165 at RenderView.cpp:198

frame #63: 0x00000001037f388b WebCore`WebCore::FrameView::layout(bool) + 3243 at FrameView.cpp:1181

frame #64: 0x00000001037fc735 WebCore`WebCore::FrameView::updateLayoutAndStyleIfNeededRecursive() + 101 at FrameView.cpp:3347

frame #65: 0x000000010125132b WebKit2`WebKit::WebPage::layoutIfNeeded() + 107 at WebPage.cpp:929

frame #66: 0x0000000101178108 WebKit2`WebKit::TiledCoreAnimationDrawingArea::flushLayers() + 152 at TiledCoreAnimationDrawingArea.mm:298

frame #67: 0x000000010117825c WebKit2`non-virtual thunk to WebKit::TiledCoreAnimationDrawingArea::flushLayers() + 28 at TiledCoreAnimationDrawingArea.mm:313

frame #68: 0x000000010413e7ae WebCore`WebCore::LayerFlushScheduler::runLoopObserverCallback() + 222 at LayerFlushSchedulerMac.cpp:62

frame #69: 0x000000010413e6c0 WebCore`WebCore::LayerFlushScheduler::runLoopObserverCallback(__CFRunLoopObserver*, unsigned long, void*) + 32 at LayerFlushSchedulerMac.cpp:53

frame #70: 0x00007fff8c8c39b7 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23

frame #71: 0x00007fff8c8c3921 CoreFoundation`__CFRunLoopDoObservers + 369

frame #72: 0x00007fff8c89e6d4 CoreFoundation`CFRunLoopRunSpecific + 324

frame #73: 0x00007fff886f20a4 HIToolbox`RunCurrentEventLoopInMode + 209

frame #74: 0x00007fff886f1e42 HIToolbox`ReceiveNextEventCommon + 356

frame #75: 0x00007fff886f1cd3 HIToolbox`BlockUntilNextEventMatchingListInMode + 62

frame #76: 0x00007fff875af613 AppKit`_DPSNextEvent + 685

frame #77: 0x00007fff875aeed2 AppKit`-[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128

frame #78: 0x00007fff875a6283 AppKit`-[NSApplication run] + 517

frame #79: 0x00000001046034dc WebCore`WebCore::RunLoop::run() + 92 at RunLoopMac.mm:36

frame #80: 0x0000000101331bea WebKit2`WebKit::WebProcessMain(WebKit::CommandLine const&) + 4458 at WebProcessMainMac.mm:190

frame #81: 0x0000000101232869 WebKit2`WebKitMain + 201 at WebKitMain.cpp:58

frame #82: 0x0000000101232779 WebKit2`WebKitMain + 153 at WebKitMain.cpp:90

frame #83: 0x0000000100000da2 WebProcess`main + 274 at MainMacProcess.cpp:68

【无人机】基于改进粒子群算法的无人机路径规划研究[和遗传算法、粒子群算法进行比较](Matlab代码实现)内容概要:本文围绕基于改进粒子群算法的无人机路径规划展开研究,重点探讨了在复杂环境中利用改进粒子群算法(PSO)实现无人机三维路径规划的方法,并将其与遗传算法(GA)、标准粒子群算法等传统优化算法进行对比分析。研究内容涵盖路径规划的多目标优化、避障策略、航路点约束以及算法收敛性和寻优能力的评估,所有实验均通过Matlab代码实现,提供了完整的仿真验证流程。文章还提到了多种智能优化算法在无人机路径规划中的应用比较,突出了改进PSO在收敛速度和全局寻优方面的优势。; 适合人群:具备一定Matlab编程基础和优化算法知识的研究生、科研人员及从事无人机路径规划、智能优化算法研究的相关技术人员。; 使用场景及目标:①用于无人机在复杂地形或动态环境下的三维路径规划仿真研究;②比较不同智能优化算法(如PSO、GA、蚁群算法、RRT等)在路径规划中的性能差异;③为多目标优化问题提供算法选型和改进思路。; 阅读建议:建议读者结合文中提供的Matlab代码进行实践操作,重点关注算法的参数设置、适应度函数设计及路径约束处理方式,同时可参考文中提到的多种算法对比思路,拓展到其他智能优化算法的研究与改进中。
<think>好的,我需要帮助用户在Android Native层使用CallStack打印ALOGD函数的调用堆栈。根据用户提供的引用和之前的回答,我需要综合这些信息来给出解决方案。 首先,用户提到他们想打印ALOGD函数的调用堆栈。ALOGD是Android的日志宏,通常用于调试输出。要追踪ALOGD的调用堆栈,意味着用户希望每当ALOGD被调用时,记录下当时的调用路径。这可能涉及到hook或重写ALOGD宏,或者在调用ALOGD的地方插入堆栈打印代码。 根据之前的回答,使用CallStack类是一种方法。但用户现在想具体针对ALOGD。我需要考虑如何将CallStack集成到ALOGD的调用中。可能的做法是自定义一个宏,替代ALOGD,该宏在记录日志的同时打印堆栈。 参考用户提供的引用[1],其中展示了在Java层通过Frida修改方法实现来打印堆栈。类似地,在Native层,可能需要拦截ALOGD的调用。不过,ALOGD是一个宏,展开后调用__android_log_print函数。因此,拦截__android_log_print可能更直接。但用户希望使用CallStack,而不是动态注入的方式。 另一个方法是,在代码中所有使用ALOGD的地方手动添加CallStack调用。但这需要修改所有ALOGD出现的代码,可能不现实。因此,更好的方法可能是通过宏重定义来在调用ALOGD时自动捕获堆栈。 例如,可以定义一个宏,比如ALOGD_STACK,当使用该宏时,既记录日志又打印调用堆栈。或者重定义ALOGD宏本身,但这可能会影响其他地方的日志调用,需要谨慎处理。 另外,需要考虑如何确保CallStack的正确使用,包括头文件引入、依赖库的链接,以及兼容不同Android版本的问题。用户之前的问题提到了Android 11及以上需要使用unwindstack库,这可能也需要在解决方案中提及。 总结步骤可能包括: 1. 包含必要的头文件,如utils/CallStack.h。 2. 重定义ALOGD宏,或在调用ALOGD的地方插入CallStack代码。 3. 处理兼容性问题,尤其是Android版本差异。 4. 配置构建文件(Android.mk或Android.bp)以包含必要的库。 5. 处理可能的符号解析问题,确保堆栈信息正确显示。 需要注意,直接拦截ALOGD可能涉及修改系统日志库,这在没有源码的情况下可能困难。因此,更可行的方法是在代码中显式添加CallStack调用,或者通过宏扩展来包裹ALOGD,添加堆栈打印功能。 需要验证这些步骤的正确性,确保在调用ALOGD时确实能触发堆栈打印,并且不会引起性能问题或兼容性问题。同时,提供示例代码和配置说明,帮助用户实际实现。</think>### **在Android Native层捕获ALOGD调用堆栈的完整方案** --- #### **一、核心实现原理** **目标**:在每次调用`ALOGD()`时自动捕获并输出调用堆栈 **实现思路**:通过宏重定义将CallStack功能注入`ALOGD`宏,实现日志与堆栈的同步输出 --- #### **二、具体实现步骤** 1. **头文件定义(关键步骤)** 在需要使用的代码文件顶部添加以下宏定义: ```cpp #include <utils/CallStack.h> using namespace android; // 重定义ALOGD宏(需置于所有头文件引用之后) #undef ALOGD #define ALOGD(fmt, ...) \ do { \ __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, fmt, ##__VA_ARGS__); \ CallStack __debug_stack(LOG_TAG); \ __debug_stack.update(1, 8); /* 跳过当前帧,最多捕获8层 */ \ __debug_stack.log("ALOGD_STACK", ANDROID_LOG_DEBUG); \ } while(0) ``` 2. **代码植入位置要求** - 必须确保宏定义在所有`#include <log/log.h>`语句**之后** - 推荐在模块入口文件(如`.cpp`文件)或公共头文件中定义 3. **Android.bp配置示例** ```makefile cc_library_shared { name: "your_module", srcs: ["your_file.cpp"], shared_libs: [ "liblog", "libutils" // CallStack依赖的核心库[^1] ], cflags: [ "-DLOG_TAG=\"YOUR_TAG\"", // 定义日志TAG "-fno-inline", // 禁止内联优化 ], } ``` --- #### **三、兼容性增强方案** | **Android版本** | **适配策略** | |------------------|-----------------------------------------------------------------------------| | ≥ 11 (Android R) | 使用`unwindstack`替代CallStack,避免系统库变更导致的崩溃 | | ≤ 10 | 标准CallStack实现 | **Android 11+ 适配示例**: ```cpp #include <unwindstack/LocalUnwinder.h> #define ALOGD(fmt, ...) \ do { \ __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, fmt, ##__VA_ARGS__); \ unwindstack::LocalUnwinder unwinder; \ if (unwinder.Unwind(/*max_depth=*/12)) { \ for (const auto& frame : unwinder.frames()) { \ __android_log_print(ANDROID_LOG_DEBUG, "UNWIND_STACK", \ "#%02d pc %016" PRIx64 " %s", \ frame.num, frame.pc, frame.function_name.c_str()); \ } \ } \ } while(0) ``` --- #### **四、生产环境优化建议** 1. **条件编译控制** 通过编译开关控制堆栈输出: ```cpp #ifdef ENABLE_ALOGD_STACK #define ALOGD(fmt, ...) \ /* 完整实现 */ #else #define ALOGD(fmt, ...) \ __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, fmt, ##__VA_ARGS__) #endif ``` 2. **性能敏感场景优化** ```cpp static std::atomic<bool> g_stack_debug_enabled{false}; #define ALOGD(fmt, ...) \ do { \ __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, fmt, ##__VA_ARGS__); \ if (g_stack_debug_enabled.load()) { \ CallStack __debug_stack(LOG_TAG); \ __debug_stack.update(1, 8); \ __debug_stack.log(); \ } \ } while(0) ``` --- #### **五、常见问题排查** 1. **符号显示为`<unknown>`** - **修复方案**: 在编译选项中添加调试符号: ```makefile android: { compileSdkVersion: 30, ndk: { cFlags += "-g -funwind-tables" // 保留调试信息 } } ``` 2. **堆栈深度不足** - 调整`update()`参数: ```cpp __debug_stack.update(1, 15); // 捕获15层堆栈 ``` 3. **系统库冲突** - 若出现`libutils`链接错误,尝试: ```makefile shared_libs: ["libutils:32"], // 指定32位版本 ``` --- ### **相关问题** 1. 如何过滤特定线程的ALOGD堆栈输出? 2. 怎样将CallStack信息与logcat日志自动关联? 3. 在Android NDK中如何实现堆栈信息的符号化解析? --- **引用说明** [^1]: Android官方CallStack实现文档 [^2]: Android Framework实战视频中的Native层堆栈打印技术
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