[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-535-g18ff6ce

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-535-g18ff6ce

[dsmith]

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- Log -----------------------------------------------------------------
commit 18ff6ce03d5ce96d093da9b9825400509dbd4ff8
Merge: d3e959b af3e4f8
Author: David Smith <dsmith@redhat.com>
Date:   Thu Dec 1 08:14:31 2011 -0600

    Merge branch 'master' into jistone/inode-uprobes

commit d3e959b02c9825d528fb101f2e0a85f1701b43a7
Merge: 97a42d2 6ba4d29
Author: David Smith <dsmith@redhat.com>
Date:   Wed Nov 30 15:48:01 2011 -0600

    Merge branch 'master' into jistone/inode-uprobes

commit 97a42d20ce7b552738881593c0de4b9ab2415dab
Merge: 78452c3 88e7c12
Author: Josh Stone <jistone@redhat.com>
Date:   Mon Nov 14 10:08:08 2011 -0800

    Merge remote-tracking branch 'origin/master' into inode-uprobes

commit 78452c3356b4f91e8d8a22fb328fc66f631cf51b
Merge: 3bff663 00873a2
Author: Josh Stone <jistone@redhat.com>
Date:   Wed Nov 9 17:55:40 2011 -0800

    Merge remote-tracking branch 'origin/master' into inode-uprobes

commit 3bff663480e55970521e66f1956fd8dc13732e65
Author: Josh Stone <jistone@redhat.com>
Date:   Thu Sep 22 13:04:35 2011 -0700

    inode-uprobes: Set context->uregs and ->probe_flags
    
    Catching up with commits 92c25572 and d9aed31e.

commit 712996b26b9862d1e44414a1dc1bc9269583e457
Merge: fe5acde 2eb99c6
Author: Josh Stone <jistone@redhat.com>
Date:   Thu Sep 22 12:41:19 2011 -0700

    Merge remote-tracking branch 'origin/master' into inode-uprobes
    
    Conflicts:
    	tapsets.cxx

commit fe5acdedaf5c283792f1109dff8562d7b2affc3f
Author: Josh Stone <jistone@redhat.com>
Date:   Thu Aug 11 16:57:13 2011 -0700

    Add a probe_type for inode-uprobes
    
    Keeping up with commit 6eefe94, common_probe_entryfn_prologue now needs
    a probe_type argument, here _STP_PROBE_HANDLER_UPROBE.

commit b92869f3b398d8211c0cff724d9e87d4880cec2c
Merge: 2b69faa 7bfd108
Author: Josh Stone <jistone@redhat.com>
Date:   Thu Aug 11 16:24:38 2011 -0700

    Merge remote-tracking branch 'origin/master' into inode-uprobes

commit 2b69faaf1c6ac22f19a40ff7c4bfbced424d8b62
Author: Josh Stone <jistone@redhat.com>
Date:   Thu May 19 19:44:16 2011 -0700

    Add initial support for inode-based uprobes
    
    This adds support for placing regular userspace probes using the new
    inode+offset API being developed for the upstream kernel.  This includes
    probing functions, statements, and SDT markers, but return probes aren't
    yet supported in the new API.  A lot of the finer details of systemtap's
    userspace runtime still needs work too, but this is a functional start.
    
    * runtime/uprobes-inode.c: New, basic registration code to lookup
      filename inodes and connect uprobes using the new API.
    * tapsets.cxx (kernel_supports_inode_uprobes): New, guess whether this
      is an inode-uprobes kernel based on CONFIG values.
      (dwarf_builder::build): Disallow userspace return probes.
      (uprobe_derived_probe::join_group): Only trigger task_finder and the
      manual uprobes model for the old style of uprobes.
      (uprobe_builder::build): Disallow absolute-address userspace probes.
      (uprobe_derived_probe_group::emit*): Split into inode/utrace variants.

-----------------------------------------------------------------------

Summary of changes:
 runtime/uprobes-inode.c |  119 +++++++++++++++++++++++++++++++
 tapsets.cxx             |  181 +++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 287 insertions(+), 13 deletions(-)
 create mode 100644 runtime/uprobes-inode.c


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systemtap: system-wide probe/trace tool