This article provides a comprehensive overview of the Linux ptrace system call, explaining its role in process debugging, detailing request parameters, demonstrating practical C examples for tracing system calls, single‑stepping, setting breakpoints, and exploring how DWARF debugging information links source code to executable addresses.
The article explains how AArch64 stack unwinding works using both frame‑pointer based methods and DWARF .eh_frame/.debug_frame CFI data, detailing the calling convention, compiler effects, CIE/FDE structures, and their integration into Android’s simpleperf profiler for accurate back‑traces.
This article explains the DWARF debugging information format, its role in iOS development, how dSYM files store DWARF data, the structure of compilation units and DIEs, key DW_TAG and DW_AT attributes, UUID matching, and practical dwarfdump commands for symbolication.
This article introduces the fundamentals of source-level debugging for WebAssembly, explains core debugging principles, discusses native and managed program debugging, examines various debugging information formats such as SourceMap and DWARF, and compares several practical debugging solutions—including Chrome DevTools, LLDB with wasmtime or iwasm, and WasmInspect.
The MDAP Stack Symbolization Service unifies high‑throughput address‑and symbol‑based stack resolution for iOS, Android native, Android Java, Web and React Native by parsing dSYM/ELF files and source‑map or ProGuard mappings, caching results in Redis (with RocksDB fallback), and exposing a gRPC API for fast, scalable de‑obfuscation.
This article explains the concept, principles, and practical steps of iOS symbolication, covering crash log processing, address translation, ASLR handling, function‑start and nlist tables, DWARF debugging information, and essential Xcode command‑line tools for accurate source‑level debugging.
This article explains the challenges of iOS crash log symbolication on Linux, evaluates native tools like symbolicatecrash and atos, describes several prototype solutions, and details the final design that pre‑parses DWARF and symbol tables into a distributed cache to achieve massive latency and resource reductions.
Meituan’s iOS team introduced the CocoaPods sub‑command zsource, which extracts source‑file paths embedded in binary components’ DWARF data and automatically fetches the corresponding code, letting developers instantly replace a binary with its source for fast, source‑level debugging without rebuilding the whole project.
