Red Hat ENTERPRISE LINUX 3 - DEVELOPER TOOLS GUIDE Guide de l'utilisateur Page 70
- Page / 100
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Chapter 5. Debugging
60
To address this, the Red Hat Enterprise Linux 6 version of GDB is now compatible with Python pretty-
printers. This allows the retrieval of more meaningful debugging data by leaving the introspection,
printing, and formatting logic to a third-party Python script.
Compatibility with Python pretty-printers gives you the chance to truly customize GDB output as you
see fit. This makes GDB a more viable debugging solution to a wider range of projects, since you now
have the flexibility to adapt GDB output as needed, and with greater ease. Further, developers with
intimate knowledge of a project and a specific programming language are best qualified in deciding
what kind of output is meaningful, allowing them to improve the usefulness of that output.
The Python pretty-printers implementation allows users to automatically inspect, format, and print
program data according to specification. These specifications are written as rules implemented via
Python scripts. This offers the following benefits:
Safe
To pass program data to a set of registered Python pretty-printers, the GDB development team added
hooks to the GDB printing code. These hooks were implemented with safety in mind: the built-in
GDB printing code is still intact, allowing it to serve as a default fallback printing logic. As such, if
no specialized printers are available, GDB will still print debugging data the way it always did. This
ensures that GDB is backwards-compatible; users who have no need of pretty-printers can still
continue using GDB.
Highly Customizable
This new "Python-scripted" approach allows users to distill as much knowledge as required into
specific printers. As such, a project can have an entire library of printer scripts that parses program
data in a unique manner specific to its user's needs. There is no limit to the number of printers a user
can build for a specific project; what's more, being able to customize debugging data script by script
offers users an easier way to re-use and re-purpose printer scripts — or even a whole library of them.
Easy to Learn
The best part about this approach is its lower barrier to entry. Python scripting is quite easy to learn
(in comparison, at least) and has a large library of free documentation available online. In addition,
most programmers already have basic to intermediate experience in Python scripting, or in scripting in
general.
The GDB and Python Pretty-Printers whitepaper provides more details on this feature. This whitepaper
also includes details and examples on how to write your own Python pretty-printer as well as how to
import it into GDB. Refer to the following link for more information:
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/
GDB_and_Python_Pretty_Printers/
- Red Hat Enterprise Linux 6 1
- Developer Guide 1
- Enterprise Linux 6 3
- Edition 0 3
- 1. Document Conventions 7
- 1.2. Pull-quote Conventions 8
- 1.3. Notes and Warnings 9
- 2.1. Do You Need Help? 9
- 2.2. We Need Feedback! 10
- Introduction to Eclipse 11
- 1.2. Help In Eclipse 13
- 1.3. Development Toolkits 15
- Environment (IDE) 17
- 2.2. Useful Hints 21
- 2.2.2. libhover Plug-in 27
- 2.2.2.1. Setup and Usage 28
- Libraries and Runtime Support 31
- 3.2.1. API Compatibility 32
- 3.2.2. ABI Compatibility 32
- 3.2.3. Policy 32
- 3.2.4. Static Linking 33
- 3.3.1. The GNU C Library 33
- std::vector 37
- elements in any order 37
- 3.3.3. Boost 38
- 3.3.3.1. Boost Updates 39
- 3.3.3.2. Boost Documentation 40
- 3.3.4. Qt 41
- 3.3.4.2. Qt Creator 42
- 3.3.5.1. KDE4 Architecture 42
- 3.3.6. Python 44
- 3.3.7. Java 45
- 3.3.8. Ruby 46
- 3.3.9. Perl 47
- 3.3.9.3. Perl Documentation 48
- Compiling and Building 49
- 4.1.2. Language Compatibility 50
- 4.1.6. Running GCC 53
- 4.1.6.1. Simple C Usage 54
- 4.1.6.2. Simple C++ Usage 54
- 4.2. Distributed Compiling 60
- 4.3. Autotools 60
- 4.3.2. Configuration Script 61
- Debugging 63
- 5.2.1. Simple GDB 64
- 5.2.2. Running GDB 65
- 5.2.4. Forked Execution 68
- 5.2.5. Threads 68
- 5.2.7. GDB Documentation 68
- 5.4. Python Pretty-Printers 69
- Highly Customizable 70
- Easy to Learn 70
- Profiling 71
- 6.2. Valgrind 72
- 6.2.2. Using Valgrind 73
- 6.3. OProfile 74
- 6.3.2. Using OProfile 75
- 6.4. SystemTap 76
- Unprivileged Users) 78
- 6.5. Eclipse-Callgraph 79
- Chapter 6. Profiling 80
- 6.5.2. The Callgraph View 81
- Go to Code 84
- 6.6.1. Perf Tool Commands 85
- 6.6.2. Using Perf 85
- 6.7. ftrace 87
- 6.7.2. ftrace Documentation 88
- Appendix A. Revision History 89
Produits connexes et manuels pour Systèmes d'exploitation Red Hat ENTERPRISE LINUX 3 - DEVELOPER TOOLS GUIDE
(24 pages)© 2020, manymanuals.fr. Tous droits réservés | 0.469 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Commentaires sur ces manuels