Bug 241045 - need crash-devel package for building extensions
Summary: need crash-devel package for building extensions
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: crash (Show other bugs)
(Show other bugs)
Version: 5.0
Hardware: All Linux
Target Milestone: ---
: ---
Assignee: Dave Anderson
QA Contact:
Depends On:
Blocks: 223597
TreeView+ depends on / blocked
Reported: 2007-05-23 18:58 UTC by Frank Ch. Eigler
Modified: 2007-11-30 22:07 UTC (History)
1 user (show)

Fixed In Version: RHBA-2007-0553
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2007-11-07 19:10:02 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2007:0553 normal SHIPPED_LIVE crash bug fix update and enhancement 2007-10-30 15:13:31 UTC

Description Frank Ch. Eigler 2007-05-23 18:58:02 UTC
For building crash extension modules, we need something like a crash-devel
rpm, containing whatever header files are customarily used for this.
One user for this would be systemtap.

In the absence of this, we might have to do a hack like that outlined in
<http://sourceware.org/ml/systemtap/2007-q2/msg00373.html>, where a full
crash source tree is referenced during the build of an extension.

Comment 1 Dave Anderson 2007-05-23 19:13:44 UTC
Crash extensions only require one file, "defs.h", from the crash utility's
src.rpm.  Hardly seems worth the effort of creating a whole new package
just for one file?

Comment 2 Frank Ch. Eigler 2007-05-23 19:26:37 UTC
The effort involved is pretty small.  How else should the correct defs.h file
be used by extension authors?  Copied from some random old version?

Comment 3 Dave Anderson 2007-05-23 19:32:32 UTC
I was thinking maybe just including it in the packages %files list,
which currently looks like this:


The "defs.h" file could be added to the /usr/share/doc/crash-x.y directory
along with the README file.

Comment 5 Dave Anderson 2007-05-23 19:41:42 UTC
To be honest with you, whatever's in Fedora hasn't been touched in ages,
and I don't keep it up to date...

I'm not an RPM-o-phile, but do you off-hand know of any user packages
that I can emulate (read: copy) such a -devel package?

Comment 6 Frank Ch. Eigler 2007-05-23 19:51:14 UTC
> To be honest with you, whatever's in Fedora hasn't been touched in ages,
> and I don't keep it up to date...

Don't worry, your secret is safe with me.

> I'm not an RPM-o-phile, but do you off-hand know of any user packages
> that I can emulate (read: copy) such a -devel package?

No problem.  See for example gpm.spec.  One additional "%package",
"%description", and "%files" clause.  Or see how systemtap.spec
includes the "-runtime"  subpackage.

Comment 7 Dave Anderson 2007-05-23 20:35:16 UTC
Ok, sounds reasonable -- thanks!

Comment 8 Dave Anderson 2007-05-31 19:52:46 UTC
crash-devel package prototype created with a patched crash.spec file:

$ diff crash/RHEL-5/crash.spec crash.spec
> %package devel
> Requires: %{name} = %{version}
> Summary: crash utility for live systems; netdump, diskdump, kdump, LKCD or
mcore dumpfiles
> Group: Development/Debuggers
> %description devel
> The core analysis suite is a self-contained tool that can be used to
> investigate either live systems, kernel core dumps created from the
> netdump, diskdump and kdump packages from Red Hat Linux, the mcore kernel patch
> offered by Mission Critical Linux, or the LKCD kernel patch.
> mkdir -p %{buildroot}%{_includedir}/crash
> chmod 0644 defs.h
> cp defs.h %{buildroot}%{_includedir}/crash
> %files devel
> %defattr(-,root,root)
> %{_includedir}/*

Comment 10 Dave Anderson 2007-06-04 21:08:32 UTC
The crash-devel package gets built from the src.rpm in today's upstream 
4.0-4.2 crash utility release:

From: http://people.redhat.com/anderson/crash.changelog.html

   - The crash-4.0-4.2.src.rpm package will create an additional package
     named crash-devel-4.0-4.2.i386.rpm, which is for use by extension 
     modules.  The -devel package installs the top-level "defs.h" file in 
     "/usr/include/crash/defs.h".  (anderson@redhat.com)  

In addition, I've added the capability for a crash extension to
register a command with the CLEANUP flag.  If that flag is set
in a command_table_entry's flag member, the command will not show
up in the help menu, but will be called prior to the display of
each "crash>" prompt: 

   - Implement support for the registration of CLEANUP extension commands
     that do not show up in help menu, but get called by restore_sanity(). 
     Extension modules may also register HIDDEN_COMMAND functions; and the
     "help -e" debug output has been enhanced.  (anderson@redhat.com)

And a new primitive has been added to get the address of a module-specific
symbol without needing to worry about a name-space collision with the base
kernel or other module:

   - Implemented a new symbol_value_module() primitive, primarily for use
     by extension modules to quickly access the address of a module symbol
     in cases where a name-clash may exist between the base kernel and/or
     other modules.  (anderson@redhat.com)

All of the above will be included in the RHEL5-1 crash update.

Comment 11 RHEL Product and Program Management 2007-06-05 15:24:28 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update

Comment 15 Dave Anderson 2007-07-16 15:42:26 UTC
When filing the crash utility errata for RHEL5-1, it "found" the
crash-devel packages.  But they are not included in the file list,
and I don't know what supposed to be done to achieve this step.

Comment 16 Dave Anderson 2007-07-16 18:37:50 UTC
Sent the following request to release-engineering, returned as
ticket: [engineering.redhat.com #13977]

With respect to RHEL-5.1 errata RHBA-2007:0553:

  RHBA-2007:0553 - crash bug fix update

One of the approved bugzillas (241045) requires the addition of a new
"crash-devel" subpackage to the crash utility package.

When performing the "Update Brew Builds" step, upon entering the
following list:


and clicking "Find New Brew Builds", all packages are found, including
the new "crash-devel" packages:

  Updated Builds

  RHEL-5 has new builds

  Found Build# 62706 crash-4.0-4.3.1 with tag dist-5E-qu-candidate. RPMS in

However, the file list that gets saved does not include the
crash-devel packages, presumably because there's some other
previously-existing list/mechanism that that doesn't know
anything about the new crash-devel package.

Also, there is this bugzilla:

  Bugzilla Bug 245992: need new crash-devel package

Ben Levenson set these flags in that bugzilla:

   exception: ?
  rhel-5.1.0: ?
      pm_ack: ?
   devel_ack: ?
      qa_ack: +

What needs to be done to move this procedure along?

Dave Anderson

Comment 21 errata-xmlrpc 2007-11-07 19:10:02 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


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