[PATCH 0/4] Catch syscall groups

[Gabriel Krisman Bertazi <gabriel at krisman dot be>]

Hello,

This patch series implements the ability to catch a group of related
syscalls with the catch syscall command.  Basically, We separate
syscalls into syscall groups, such as 'network' and 'process' and let
users say something like "catch syscall group:<groupname>" to catch all
the system calls in the group at once.

For the record, I sent a RFC for this feature a few weeks ago.  It can
 be seen here
 <https://www.sourceware.org/ml/gdb-patches/2014-10/msg00130.html>.

I followed the suggestions presented on that thread, and now we are
using the prefixes "group:" and "g:" to specify group names. So, these
syntaxes are allowed:

/* Catches network and process groups.  */
$ catch syscall group:network group:process

$ catch syscall g:network g:process

Other than the usual word completion feature, this patch doesn't provide
a way to list all the groups available.  This was discussed in the RFC
but we couldn't reach a consensus about the syntax.  So, I am leaving it
to a future patch.

Right now, I created syscall groups only for the x86_64 architecture.  I
sorted the syscalls following the same scheme strace does.  I plan to
include support for other architectures as well, after getting this part
upstream.

This patch series is divided as follows: Part 1 updates the xml-syscall
interface to support the syscall group feature; Part 2 has the actual
catchpoint code; Part 3 has the updated x86_64 xml, which defines the
syscall groups for this architecture, and includes tests for this
feature on x86_64; Finally, Part 4 updates documentation and the NEWS
file.

This presented no regressions on Fedora 20 x86 and x86_64.

Gabriel Krisman Bertazi (4):
  Implemement support for groups of syscalls in the xml-syscall    
    interface.
  Add support to catch groups of syscalls.
  Create syscall groups for x86_64.
  Update documentation on catching a group of related syscalls.

 gdb/NEWS                                 |   5 +
 gdb/breakpoint.c                         | 114 ++++++++--
 gdb/doc/gdb.texinfo                      |   8 +-
 gdb/syscalls/amd64-linux.xml             | 362 +++++++++++++++----------------
 gdb/syscalls/gdb-syscalls.dtd            |   3 +-
 gdb/testsuite/gdb.base/catch-syscall.exp |  33 +++
 gdb/xml-syscall.c                        | 219 ++++++++++++++++++-
 gdb/xml-syscall.h                        |  12 +
 8 files changed, 557 insertions(+), 199 deletions(-)

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1.9.3