Backend DevelopmentC++How Can I Reliably Debug Core Files Generated on Different Linux Distributions?How Can I Reliably Debug Core Files Generated on Different Linux Distributions?
Debugging Core Files Generated on Different Distros
Core File Meaningfulness Across Distros
When debugging core files generated on a Linux distro other than the development environment, the stack trace may not be reliable. Dynamically linked executables use shared libraries that may have different implementations depending on the distro. GDB will attempt to use the library versions available in the development environment, which may differ from those on the customer's system. As a result, stack addresses may map to different routines or be located within instructions, indicating an inaccurate stack trace.
Resolving Meaningfulness Issues
To obtain a meaningful stack trace, acquire all shared libraries from the customer's system and set the solib-absolute-prefix path in GDB. This will redirect GDB to use the customer's libraries for symbol resolution.
Debugging Approach
Instead of advising customers to run a -g binary, it's recommended to:
- Compile with -g -O2 to create a debug binary (myexe.dbg).
- Remove debugging information (strip -g myexe.dbg) to create a production binary (myexe).
- Distribute myexe to customers.
- Use myexe.dbg when debugging customer-generated core files.
This approach provides full symbolic information without shipping a debug binary to customers or exposing sensitive source code.
Debugging Resources
For further debugging insights, consider referring to the following resources:
-
Linux:
- "Linux Debugging Tools" by Leonid Evdokimov
- "Mastering System Debugging in Linux" by Paul Turner
-
Solaris:
- "Solaris System and Performance Tuning" by Mike Wilson
- "Practical Solaris Performance Troubleshooting and Tuning" by Mark Burgess
These books offer real-life examples and advanced techniques for debugging on Linux and Solaris, including assembly analysis.
The above is the detailed content of How Can I Reliably Debug Core Files Generated on Different Linux Distributions?. For more information, please follow other related articles on the PHP Chinese website!
C and XML: Integrating Data in Your ProjectsMay 10, 2025 am 12:18 AMIntegrating XML in a C project can be achieved through the following steps: 1) parse and generate XML files using pugixml or TinyXML library, 2) select DOM or SAX methods for parsing, 3) handle nested nodes and multi-level properties, 4) optimize performance using debugging techniques and best practices.
Using XML in C : A Guide to Libraries and ToolsMay 09, 2025 am 12:16 AMXML is used in C because it provides a convenient way to structure data, especially in configuration files, data storage and network communications. 1) Select the appropriate library, such as TinyXML, pugixml, RapidXML, and decide according to project needs. 2) Understand two ways of XML parsing and generation: DOM is suitable for frequent access and modification, and SAX is suitable for large files or streaming data. 3) When optimizing performance, TinyXML is suitable for small files, pugixml performs well in memory and speed, and RapidXML is excellent in processing large files.
C# and C : Exploring the Different ParadigmsMay 08, 2025 am 12:06 AMThe main differences between C# and C are memory management, polymorphism implementation and performance optimization. 1) C# uses a garbage collector to automatically manage memory, while C needs to be managed manually. 2) C# realizes polymorphism through interfaces and virtual methods, and C uses virtual functions and pure virtual functions. 3) The performance optimization of C# depends on structure and parallel programming, while C is implemented through inline functions and multithreading.
C XML Parsing: Techniques and Best PracticesMay 07, 2025 am 12:06 AMThe DOM and SAX methods can be used to parse XML data in C. 1) DOM parsing loads XML into memory, suitable for small files, but may take up a lot of memory. 2) SAX parsing is event-driven and is suitable for large files, but cannot be accessed randomly. Choosing the right method and optimizing the code can improve efficiency.
C in Specific Domains: Exploring Its StrongholdsMay 06, 2025 am 12:08 AMC is widely used in the fields of game development, embedded systems, financial transactions and scientific computing, due to its high performance and flexibility. 1) In game development, C is used for efficient graphics rendering and real-time computing. 2) In embedded systems, C's memory management and hardware control capabilities make it the first choice. 3) In the field of financial transactions, C's high performance meets the needs of real-time computing. 4) In scientific computing, C's efficient algorithm implementation and data processing capabilities are fully reflected.
Debunking the Myths: Is C Really a Dead Language?May 05, 2025 am 12:11 AMC is not dead, but has flourished in many key areas: 1) game development, 2) system programming, 3) high-performance computing, 4) browsers and network applications, C is still the mainstream choice, showing its strong vitality and application scenarios.
C# vs. C : A Comparative Analysis of Programming LanguagesMay 04, 2025 am 12:03 AMThe main differences between C# and C are syntax, memory management and performance: 1) C# syntax is modern, supports lambda and LINQ, and C retains C features and supports templates. 2) C# automatically manages memory, C needs to be managed manually. 3) C performance is better than C#, but C# performance is also being optimized.
Building XML Applications with C : Practical ExamplesMay 03, 2025 am 12:16 AMYou can use the TinyXML, Pugixml, or libxml2 libraries to process XML data in C. 1) Parse XML files: Use DOM or SAX methods, DOM is suitable for small files, and SAX is suitable for large files. 2) Generate XML file: convert the data structure into XML format and write to the file. Through these steps, XML data can be effectively managed and manipulated.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Dreamweaver CS6
Visual web development tools
WebStorm Mac version
Useful JavaScript development tools
PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
