[Bug runtime/14712] New: VM_EXECUTABLE went to heaven

[Bug runtime/14712] New: VM_EXECUTABLE went to heaven

[fche at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14712

             Bug #: 14712
           Summary: VM_EXECUTABLE went to heaven
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
        AssignedTo: systemtap@sourceware.org
        ReportedBy: fche@redhat.com
    Classification: Unclassified


linux commit e9714acf8c439688884234dcac2bfc38bb607d38
Author: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date:   Mon Oct 8 16:28:54 2012 -0700

    mm: kill vma flag VM_EXECUTABLE and mm->num_exe_file_vmas


This commit renders unbuildable the runtime.

runtime/linux/task_finder.c
runtime/linux/task_finder2.c
runtime/linux/uprobes-common.c
runtime/linux/uprobes-inode.c
runtime/linux/uprobes-inode.c

Some of these may want to use mm->exe_file, or vma_flags & VM_EXEC, not sure.

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[Bug runtime/14712] VM_EXECUTABLE went to heaven

[jistone at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14712

Josh Stone <jistone at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |jistone at redhat dot com
         Resolution|                            |FIXED

--- Comment #1 from Josh Stone <jistone at redhat dot com> 2012-10-12 22:04:53 UTC ---
commit 529c7eaed7360776b596af31c86d4e4712a1a3db

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[Bug runtime/14712] VM_EXECUTABLE went to heaven

[agentzh at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14712

agentzh <agentzh at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |agentzh at gmail dot com

--- Comment #2 from agentzh <agentzh at gmail dot com> 2012-10-12 23:58:26 UTC ---
FYI, commit 529c breaks my user-land systemtap scripts for Nginx. Now I'm
getting the following error:

/tmp/stapjgDtsY/stap_d016a8aeecc9af657579f76982722463_8502_src.c: In function
‘systemtap_module_init’:
/tmp/stapjgDtsY/stap_d016a8aeecc9af657579f76982722463_8502_src.c:1237:3: error:
implicit declaration of function ‘_stp_vma_init’
[-Werror=implicit-function-declaration]
cc1: all warnings being treated as errors
WARNING: kbuild exited with status: 2
Pass 4: compilation failed.  Try again with another '--vp 0001' option.

Revering this commit resolves the issue.

This is just a quick note. If you need any further information, please let me
:)

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[Bug runtime/14712] VM_EXECUTABLE went to heaven

[jistone at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14712

--- Comment #3 from Josh Stone <jistone at redhat dot com> 2012-10-13 00:26:44 UTC ---
(In reply to comment #2)
> FYI, commit 529c breaks my user-land systemtap scripts for Nginx.

Ouch, you're absolutely right.  It's a maze of #includes in there, and I
clearly didn't run full tests.  Should be fixed by commit 3df148cb - thanks for
reporting!

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[Bug runtime/14712] VM_EXECUTABLE went to heaven

[agentzh at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14712

--- Comment #4 from agentzh <agentzh at gmail dot com> 2012-10-13 00:51:21 UTC ---
The new master HEAD works for me now. Thanks for the quick fix! :)

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