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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.9.9-237-g06e0b62
- From: jistone at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 3 Sep 2009 21:33:14 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.9.9-237-g06e0b62
- Reply-to: systemtap at sourceware dot org
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commit 06e0b6262393b095a33e9cc6e7ab7bc5d4fe9c95
Merge: b969d16b2986a491eb37706e09da888d9914a7dd d0822e28934cd0387c2af4349cf52c52c368c55a
Author: Josh Stone <jistone@redhat.com>
Date: Thu Sep 3 14:31:02 2009 -0700
Merge branch 'master' of sourceware.org:/git/systemtap
commit b969d16b2986a491eb37706e09da888d9914a7dd
Author: Josh Stone <jistone@redhat.com>
Date: Thu Sep 3 12:31:21 2009 -0700
Escape literal '.'s in regular expressions
* dwflpp.cxx (dwflpp::build_blacklist): Escape '.'s in filenames.
commit 178ac3f6fdef839ef1ca646421e2c436a91ac1fb
Author: Josh Stone <jistone@redhat.com>
Date: Thu Sep 3 12:26:37 2009 -0700
Use a regexp for matching blacklist sections
We already use regexp for function/file blacklisting, so this just makes
the section blacklisting consistent with the rest.
* dwflpp.cxx (dwflpp::blacklisted_p): Use regexec instead of section==.
(dwflpp::build_blacklist): Build blacklist_section too.
commit 789448a36f57e53cc6a1878f7637998b0f15652c
Author: Josh Stone <jistone@redhat.com>
Date: Thu Sep 3 12:00:10 2009 -0700
Fetch the blacklist section only when needed
We only check blacklisting on kernel probes, so it's a waste to dig up
the section name otherwise.
* dwflpp.cxx (dwflpp::blacklisted_p): Lookup the section directly.
(relocate_address::relocate_address): Don't do blacklisting here.
* tapsets.cxx (dwarf_query::add_probe_point): Don't carry the blacklist
section directly anymore.
commit 7fdd3e2c61874abd631de5038d846dffb6f5bc5f
Author: Josh Stone <jistone@redhat.com>
Date: Thu Sep 3 11:32:59 2009 -0700
PR10573: Squash duplicate inline instances
In C++, identical functions included in multiple CUs will get merged at
link time into a single instance. We need to make sure that inlines
within those merged functions are not probed multiple times.
* tapsets.cxx (inline_instance_info::operator<): Used for set support.
(dwarf_query::handle_query_module): Clear inline_dupes on each module.
(query_dwarf_inline_instance): Squash this inline instance if it's
already in the inline_dupes set.
commit b74789646bfe59131327716357c8b7c1521fa14a
Author: Josh Stone <jistone@redhat.com>
Date: Wed Sep 2 19:09:50 2009 -0700
PR10572: Allow duplicate function names in a CU
We can't assume that a given function name will only appear once in a
CU. In C++, two functions may have the same name in different classes
or namespaces, or even in the same scope with overloaded parameters.
Even in C, the compiler may generate multiple copies of a single
function with different optimizations.
We now use a multimap for function names, so we shouldn't miss any.
* dwflpp.h (cu_type_cache_t, mod_cu_type_cache_t): New typedef to keep a
normal map for the global_alias_cache.
(cu_function_cache_t): Use a multimap for function names.
* dwflpp.cxx (dwflpp::iterate_over_functions): Walk over the range of
exactly-matching functions.
* tapsets.cxx (query_dwarf_func): Don't abort after seeing an exact
match -- there could be more to come.
commit 7a1921492e38221e1552b7698f001fa70d0e0e8b
Author: Josh Stone <jistone@redhat.com>
Date: Wed Sep 2 18:40:14 2009 -0700
Delete stuff that dwflpp newed
* dwflpp.cxx (dwflpp::~dwflpp): Delete all of the caches.
commit 64deb08509bf9682e7d3b8141399c5603edb2df2
Author: Josh Stone <jistone@redhat.com>
Date: Wed Sep 2 16:43:58 2009 -0700
Provide backward-compatible unordered_map/set
We were defining our own stap_map with a ::type to let us use typedefs
to use the new unordered_map if available, or hash_map otherwise. Since
unordered_map is the future direction, I'm changing our code to use that
directly. The backward-compatible version is a #define to hash_map,
which has a compatible interface.
While I'm at it, let's also define unordered_multimap, unordered_set,
and unordered_multiset.
* unordered.h: New.
* dwflpp.h (stap_map): Removed.
(cache typedefs): Use the unordered name now.
commit aca66a36681ac7cbf7fcc2eac4dafc83d6559ef9
Author: Josh Stone <jistone@redhat.com>
Date: Wed Sep 2 16:14:08 2009 -0700
Unify lex_cast* and avoid string copies
We always use lex_cast either to string or from string, so I made that
explicit, and got rid of some string copies in the process. There was
also stringify(), which was redundant to lex_cast<string>.
We also always used lex_cast_hex to string, so that's now hard-coded and
again eliminated a string copy.
For lex_cast_qstring<string>, there's no need to write the streamify the
input, so a specialization now operates directly on the input.
Hopefully this is a bit cleaner, and I do measure it to be a little
faster on scripts with many probes.
-----------------------------------------------------------------------
Summary of changes:
buildrun.cxx | 10 ++--
dwflpp.cxx | 130 +++++++++++++++++++++++++++++----------------------
dwflpp.h | 43 +++++++----------
elaborate.cxx | 6 +-
main.cxx | 4 +-
parse.cxx | 5 +-
staptree.cxx | 2 +-
tapset-mark.cxx | 12 ++--
tapset-perfmon.cxx | 6 +-
tapset-procfs.cxx | 2 +-
tapset-timers.cxx | 4 +-
tapset-utrace.cxx | 6 +-
tapsets.cxx | 65 ++++++++++++++++----------
translate.cxx | 36 +++++++-------
unordered.h | 56 ++++++++++++++++++++++
util.h | 68 ++++++++++++++-------------
16 files changed, 270 insertions(+), 185 deletions(-)
create mode 100644 unordered.h
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systemtap: system-wide probe/trace tool