[Crash-utility] merge extension lib and crash into one binary?

[Denman, Robert]

> -----Original Message-----
> From: crash-utility-bounces at redhat.com [mailto:crash-utility-
> bounces at redhat.com] On Behalf Of Dave Anderson
> Sent: Monday, November 05, 2012 5:57 AM
> To: Discussion list for crash utility usage, maintenance and development
> Subject: Re: [Crash-utility] merge extension lib and crash into one binary?
> 
> 
> 
> ----- Original Message -----
> > Hi Dave,
> >
> > Is there any existed method for merging extension lib with crash into one
> binary?
> > Although library is flexible, people don't like to handy load
> > multi-libs, especially for those not crash experts...
> 
> No, not really.  You could take any extension module and build it into the crash
> binary by adding it to the Makefile's CFILES and OBJECT_FILES lists, and adding
> a stanza to compile it.  But you would have to copy the help page data
> manually to help.c, and perhaps tinker with the extension module source file if
> necessary if there are any namespace collisions.
> 
> If you don't want to hand-load extension modules, install them in one of the
> appropriate locations, and then use "crash -x ..."
> to load them all automatically during initialization.
> 
> $ crash --help
> ...
> 
>   -x
>     Automatically load extension modules from a particular directory.
>     The directory is determined by the following order of precedence:
> 
>     (1) the directory specified in the CRASH_EXTENSIONS shell
>         environment variable
>     (2) /usr/lib64/crash/extensions  (64-bit  architectures)
>     (3) /usr/lib/crash/extensions  (32-bit architectures)
>     (4) the ./extensions subdirectory of the current directory
> 
> ...
> 
> Dave
> 
> 
> --
> Crash-utility mailing list
> Crash-utility at redhat.com
> https://www.redhat.com/mailman/listinfo/crash-utility

You can use the .crashrc for this purpose.  I use it to auto-load all extensions and run a few setup commands.

# cat .crashrc 

# default settings
extend /root/.extensions/sial.so
extend /root/.extensions/gcore.so
set emacs
sf

- Robert -