[Crash-utility] ANN: Pykdump - Python scripting for Crash

Pykdump-0.1 - Python extension and scripting support LinuxDump-0.1 - Extra modules and examples for Pykdump ------------------------------------------------------------------ This is the initial release of framework that embeds the Python interpeter in a dynamically-loadable 'crash' extension and lets you run Python scripts, e.g. crash32> extend /usr/local/lib/pykdump32.so /usr/local/lib/pykdump32.so: shared object loaded crash32> epython test.py ... 'Pykdump' module provides basic functionality and consists of C-extension and pure Python module. 'LinuxDump' includes an additional library and some examples: emulating 'dev' command, printing routing table and emulating 'netstat -an'. This is an early release - documentation is not complete yet, some functionality is missing (e.g. proper access to multidimensional arrays), performance can be further improved. But it is already quite usable for practical purposes (as demonstrated by several real cases we worked on in HP). There are functions to execute GDB/crash commands and get their output, but it is better to use highlevel API that maps C-structures to Python objects, here is an example: --------------------test.py------------------------------------------ #!/usr/bin/env python # This imports all the functions you can use from pykdump from pykdump.API import * # Check whether symbol exists if (symbol_exists('all_bdevs')): print "all_bdevs exists" # Read the contents of 'tcp_hashinfo' table. The result type is chosen # automatically according to symbol definition tcp_hashinfo = readSymbol('tcp_hashinfo') # Print the size of ESTABLISHED hash-table print tcp_hashinfo.tcp_ehash_size --------------------------------------------------------------------- You can download the packages (sources only, no binaries yet) from http://sourceforge.net/projects/pykdump The framework has been successfully built and used on IA32, AMD64 (64-bit) and IA64, adding support for other platforms should be easy but has not been done yet. The documentation is included in Pykdump module (written using LyX, converted to HTML and PDF). Any help/feedback will be appreciated. Regards, Alex ------------------------------------------------------------------ Alexandre Sidorenko email: alexs(a)hplinux.canada.hp.com Global Solutions Engineering: Unix Networking Hewlett-Packard (Canada) ------------------------------------------------------------------