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generated by cgit (git 2.34.1) at 2025-10-14 18:02:44 +0000
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2007-04-25  David Smith  <dsmith@redhat.com>

	PR 2339
	* translate.cxx: Renamed "qname" to "value" throughout, since
	there are times now when qname would refer to a constant value.
	(tmpvar::override): Added function to allow for overriding a
	temporary variable name with a string.
	(tmpvar::value): New function that returns either the overridden
	string or the temporary variable name.
	(c_unparser::c_expression): New function.
	(c_unparser_assignment::c_assignop): Speed up assignment when
	numeric or string constants are used.
	(c_tmpcounter::visit_block): Avoid empty structs inside the union
	of temporary variables.
	(c_tmpcounter_assignment::prepare_rvalue): New function.
	(c_tmpcounter_assignment::c_assignop): New function.
	(c_tmpcounter_assignment::visit_symbol): Update temporary
	declarations.
	(c_unparser_assignment::prepare_rvalue): Speed up use of rvalues
	by using numeric and string constants directly instead of copying
	them to temporaries first.
	(c_tmpcounter::load_map_indices): New function.
	(c_unparser::load_map_indices): Speed up use of numeric and string
	constants as map indices.
	(c_tmpcounter::visit_arrayindex): Updated temporary declarations.
	(c_tmpcounter_assignment::visit_arrayindex): Updated temporary
	declarations.
	* translate.h (class translator_output): Added tellp() and seekp()
	functions.

2007-04-24  Mike Mason <mmlnx@us.ibm.com>

	* man/stapprobes.socket.5.in: Removed do_write and do_read probes,
	added aio_write, aio_read, writev and readv probes. 

2007-04-24  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (common_probe_entryfn_epilogue): Increment
	error_count when overload processing kicks in.

2007-04-24  Martin Hunt  <hunt@redhat.com>

	* stp_check.in: More tweaking of mount statement.

2007-04-23  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (die_entrypc): Expand search algorithm to
	check for "aranges", as sometimes occurs for inlined functions.

2007-04-20  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in (elfutils_version): Bump to 0.127.

2007-04-18  Frank Ch. Eigler  <fche@elastic.org>

	* Makefile.am (install-elfutils): Use $INSTALL_PROGRAM to
	copy elfutils shared libraries, as suggested by Perry Cheng
	<perryche@us.ibm.com>.

2007-04-18  Frank Ch. Eigler  <fche@elastic.org>

	* parse.cxx (scan_pp): Correct warnings from if/if/else nesting.

2007-04-10  Martin Hunt  <hunt@redhat.com>

	* stp_check.in: Fixes to make sure debugfs or relayfs are mounted
	exactly where we expect and other mounts are ignored.

2007-04-03  Pierre Peiffer  <pierre.peiffer@bull.net>

	* parse.cxx, parse.h (lexer::scan): Add $# and @# identifiers.
	(eval_pp_conditional, scan_pp): Allow the use of $x and @x identifiers.
	Produce more accurate error messages.
	* stap.1.in: Document $# and @# identifiers.

2007-04-04  Frank Ch. Eigler  <fche@elastic.org>

	GCC 4.3 compatibility patches from Debian.
	* buildrun.cxx, hash.cxx, tapsets.cxx, translate.cxx: #include a few
	more C++ headers.

2007-04-03  Frank Ch. Eigler  <fche@elastic.org>

	Improve error messages for underprivileged scripts.
	* parse.h (parse_error): Add skip_some member, true default.
	* parse.cxx (parse_embedded_code): Send false on missing -g.
	* parse.cxx (parser::parse): Respect flag during parse error
	recovery.

2007-04-02  Frank Ch. Eigler  <fche@redhat.com>

	PR 3261.
	* tapsets.cxx (query_module): Reject elfutils module "kernel"
	unless kernel.* probe point used.

2007-04-02  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (query_dwarf_func): Skip non-inlined functions
	for .function().inline case.

2007-03-30  Frank Ch. Eigler  <fche@redhat.com>

	PR 1570
	* NEWS: Document probe handler language change re. inline functions.
	* stapprobes.5.in: Likewise.
	* tapsets.cxx: Many changes to simplify caches and implement new
	handling of inline functions, removed of stubs for future probes.
	* elaborate.cxx (derived_probe printsig_nested): New function.
	* elaborate.h: Declare it.
	* main.cxx (usage): Clarify "-r" meaning.
	(main): Tweak related "-p 4" message.

2007-03-30  David Smith  <dsmith@redhat.com>

	PR 2341
	* translate.cxx (c_unparser::emit_locks): No longer emits a read
	lock for global variables that are only written to in begin/end
	probes.
	(c_unparser::emit_unlocks): Ditto.
	(translate_pass): Runs a varuse_collecting_visitor over probes
	that need global variable locks for use in
	emit_locks()/emit_unlocks().

	* stap.1.in: Corrected probe overload processing text.

2007-03-29  David Smith  <dsmith@redhat.com>

	PR 3545
	* stap.1.in: Documented probe overload processing.

2007-03-29  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (dwarf_derived_probe emit_module_init): Correct handling
	of kprobe registration errors in the middle of a sequence.

2007-03-29  David Smith  <dsmith@redhat.com>

	PR 4281
	* main.cxx (main): Validates '-m NAME' option.  Chops off '.ko' if
	present.  Makes sure name isn't empty.  Makes sure name is only
	composed of characters [_a-zA-Z0-9].

2007-03-28  David Smith  <dsmith@redhat.com>

	PR 2341 (partial fix)
	* elaborate.h (struct derived_probe): Added needs_global_locks()
	member function.  Unless overridden, will return true indicating
	that this probe needs locks around global variable references.
	* tapsets.cxx (struct be_derived_probe): Added override of default
	needs_global_locks() returning false.  begin/end probes don't
	need locks around global variables, since they aren't run
	concurrently with any other probes.
	* translate.cxx (c_unparser::emit_common_header): Updated
	probe_contents logic to match the logic in emit_probe.
	(c_unparser::emit_probe): Added whether the probe needs global
	variable locks to the probe string (that helps eliminate duplicate
	probes).  The generated C changes based on whether or not global
	variable locks are needed, but the pass 2 output doesn't differ
	between a probe that needs global variable locks and one that
	doesn't.  If the probe doesn't need global variable locks, doesn't
	output them.

2007-03-26  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac: Bumped version to 0.5.14.
	* configure: Regenerated.

2007-03-26  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (dwflpp::translate_final_fetch_or_store): Improved
	error messages for invalid types.

	* elaborate.cxx (typeresolution_info::invalid): Improved the error
	message for invalid operators.

2007-03-22  Frank Ch. Eigler  <fche@elastic.org>

	PR 4224.
	* staptree.h (probe): Add privileged field.
	* elaborate.cxx, parse.cxx: Pass privileged flag to probes.
	* tapsets.cxx (dwarf_query): Add has_absolute field.
	(dwarf_derived_probe ctor): Tolerate it.
	(register_patterns): Expose it.
	(dwarf_builder::build): Implement it with no dwfl whatsoever.
	* NEWS: Document kernel.statement().absolute.
	* stapprobes.5.in: Ditto.

2007-03-21  Will Cohen  <wcohen@redhat.com>

	* Makefile.am:
	* Makefile.in: Correct SAMPLE_SRC.

2007-03-21  David Smith  <dsmith@redhat.com>

	PR 4146
	* tapsets.cxx (common_probe_entryfn_prologue): Added
	'interruptible' parameter.  If a probe is interruptible,
	interrupts are not disabled while the probe executes.  Preemption
	is disabled however.  Interruptible parameter defaults to false.
	(common_probe_entryfn_epilogue): Ditto.
	(be_derived_probe_group::emit_module_decl): Uses new
	'interruptible' parameter to mark begin/end probes as
	interruptible.
	(probe_derived_probe_group::emit_module): Initialize
	'actionremaining' with MAXACTION instead of initializing
	'actioncount' with 0.
	* translate.cxx (emit_common_header): Renamed 'actioncount' to
	'actionremaining'.  Turned logic around to initialize
	actionremaining to MAXACTION or MAXACTION_INTERRUPTIBLE then
	decrement it as actions occur.
	(translate_pass): Added MAXACTION_INTERRUPTIBLE initialization.
	* translate.h: Removed outdated comment portion.
	* stap.1.in: Documented MAXACTION_INTERRUPTIBLE.
	* NEWS: Added note about begin/end probes being run with
	interrupts enabled.

2007-03-20  Frank Ch. Eigler  <fche@elastic.org>

	PR 4224.
	* tapsets.cxx (add_probe_point): Make kernel implicitly relocated
	relative to the _stext symbol.
	(dwarf_derived_probe ctor, emit_module_decls): Cooperate.
	(lookup_symbol_address): New function.
	(dwarf_builder::build): Call it thrice.
	(in_kprobes_function): Simplify.
	* session.h (systemtap_session): Rename cached symbol addresses.
	* translate.cxx, elaborate.cxx: Corresponding tweaks.

2007-03-19  David Smith  <dsmith@redhat.com>

	PR 4146 (partial fix)
	* tapsets.cxx (all_session_groups): Added note about stating that
	begin probes should be registered (actually run) first and end
	probes should be unregistered (run) last.
	* translate.cxx (c_unparser::emit_module_exit): Process probe
	group vector in reverse order so that probe groups will get
	unregistered in the reverse order that they were registered.

2007-03-19  Frank Ch. Eigler  <fche@elastic.org>

	* buildrun.cxx (compile_pass): Emit kbuild-time autoconf widgets
	to customize runtime or translator C code to actual kernel rather
	than kernel version string.  Thanks to FC 2.6."20" for the nudge.
	* tapsets.cxx (hrtimer*emit_module): First client: HRTIMER_{MODE_}REL.

2007-03-17  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac: Tweak missing elfutils error message.
	* configure: Regenerated.

2007-03-16  David Smith  <dsmith@redhat.com>

	PR 3545.
	* tapsets.cxx (common_probe_entryfn_prologue): Added
	'overload_processing' parameter, which defaults to true.  If
	overload_processing is set to false, doesn't output the
	STP_OVERLOAD code.
	(common_probe_entryfn_epilogue): Ditto.
	(be_derived_probe_group::emit_module_decl): Set
	overload_processing to false in calls to
	common_probe_entryfn_prologue and common_probe_entryfn_epilogue
	since begin/end probes shouldn't overload the system.
	* translate.cxx (c_unparser::emit_common_header): Emit
	STP_OVERLOAD global variables.
	(translate_pass): Emit STP_OVERLOAD defines.

2007-03-14  Martin Hunt  <hunt@redhat.com>
	* main.cxx (usage): Remove "-M" and edit description
	of "-b".
	* stap.1.in: Remove "-M" option and edit description of "-b".
	Edit description of "-o".

2007-03-14  Martin Hunt  <hunt@redhat.com>
	* Makefile.am: Don't install old relayfs sources.
	* makefile.in: Rebuilt.

2007-03-14  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (staprun_SOURCES): Sources now live in
	runtime/staprun.
	* makefile.in: Rebuilt.

	* staprun.8.in: Updated.

	* buildrun.cxx (run_pass): Use "-v" instead of not "-q" to
	be compatible with latest staprun.
	* translate.cxx (emit_module_exit): Print warning using
	_stp_printf so it shows up at the end of all output.
	(translate_pass): Replace STP_RELAYFS with STP_BULKMODE.
	Eliminate STP_RELAYFS_MERGE.

2007-03-13  Frank Ch. Eigler  <fche@redhat.com>

	PR 4171.
	* Makefile.am (check, installcheck): Pass build-tree pointers
	in environment variables.
	* configure.ac: Run separate configury for testsuite/.
	* configure, Makefile.in: Regenerated.

2007-03-07  Frank Ch. Eigler  <fche@elastic.org>

	PR 4166.
	* tapsets.cxx (translate_components): Throw an exception rather
	then suffer an assertion failure for $ptr[index] expressions.

2007-03-05  David Smith  <dsmith@redhat.com>

	* systemtap.spec.in: Made example perl script non-executable so
	that the systemtap rpm won't require perl.

2007-03-04  Frank Ch. Eigler  <fche@redhat.com>

	* stap.1.in, stapex.5.in, staprun.8.in: Tweak text to remove
	authors credits, update examples and pointers.

2007-02-28  David Smith  <dsmith@redhat.com>

	* systemtap.spec.in: Fixed %{_libexecdir}/systemtap path in
	systemtap-runtime %files section.

2007-02-27  Frank Ch. Eigler  <fche@elastic.org>

	* systemtap.spec.in (/var/cache/systemtap): Forget it.
	(stp_check): Pack this in with systemtap-runtime.
	* stp_check.in: Add LANG=C for speed.

2007-02-27  David Smith  <dsmith@redhat.com>

	* staprun.8.in: Added a basic staprun man page.
	* Makefile.am: Added staprun.8.
	* Makefile.in: Regenerated.
	* configure.ac: Added staprun.8.
	* configure: Regenerated.
	* systemtap.spec.in: Added staprun.8 and other document files to
	staprun RPM.
	* .cvsignore: Ignores staprun.8.

2007-02-27  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (dwflpp setup): Print "missing kernel debuginfo"
	message consistently for, er, missing kernel debuginfo.
	(dwarf_builder::build): Don't try to help.
	(query_kernel_exists): Zapped.

2007-02-27  David Smith  <dsmith@redhat.com>

	* systemtap.spec.in: Fedora Packaging Guidelines updates.  Updated
	BuildRoot macro value to Fedora Extras standard value.  No longer
	uses %makeinstall macro.  The rpm now owns the
	/usr/libexec/systemtap directory.

2007-02-26  David Smith  <dsmith@redhat.com>

	* Makefile.am: Removed 'update-examples' target.  Moved
	functionality to systemtap.spec.in.
	* Makefile.in: Regenerated from Makefile.am.
	* systemtap.spec.in: Fixes paths in the example scripts directly.

	* Makefile.am: Added 'update-examples' target that fixes paths in
	the example code we ship in the rpm.
	* Makefile.in: Regenerated from Makefile.am.
	* systemtap.spec.in: Calls "make update-examples" target to fix
	the path to systemtap in the example scripts.

2007-02-25  Frank Ch. Eigler  <fche@redhat.com>

	* elaborate.h (match_node, derived_probe_builder): Add
	build_no_more member function.
	* elaborate.cxx (semantic_pass_symbols): Call it.
	* tapsets.cxx (dwarf_builder): Implement it by releasing dwflpp
	instance after pass 2, freeing mucho memory.

2007-02-23  Josh Stone  <joshua.i.stone@intel.com>

	PR 4096
	* tapsets.cxx (hrtimer_derived_probe_group::emit_module_decls):
	Adapt the function signature for changes in 2.6.21.
	(hrtimer_derived_probe_group::emit_module_init): Fix the enum name
	for 2.6.21 as well.

2007-02-19  Frank Ch. Eigler  <fche@elastic.org>

	PR 4078 and more, including patch from
	Eugeniy Meshcheryakov <eugen@debian.org>:
	* Makefile.am (AM_CXXFLAGS, AM_CFLAGS): Add -Wextra -Wall -Werror
	consistently.
	* Makefile.in: Regenerated.
	(*): Many minor warning fixes.

2007-02-17  Frank Ch. Eigler  <fche@elastic.org>

	PR 4066.
	* translate.cxx (var::init): Check stat scalar initialization,
	just like is done for arrays.
	(emit_module_exit): Check unlikely but possible null timing stat.

2007-02-15  David Smith  <dsmith@redhat.com>

	PR 3625.
	* tapsets.cxx (dwflpp::print_locals): New function to print all
	the variables/parameters of a function.
	(dwflpp::find_variable_and_frame_base): Calls print_locals() when
	target variable can't be found.
	(dwflpp::print_members): New function to print all the members of
	a union/structure.
	(dwflpp::translate_components) Calls print_members() when
	union/structure member target variable reference can't be found.

2007-02-14  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (emit_module_decls): Assert CONFIG_KPROBES,
	as suggested by Andreas Kostyrka <andreas@kostyrka.org>.

2007-02-12  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (query_statement): Tolerate null file name string.

2007-02-09  Frank Ch. Eigler  <fche@elastic.org>

	PR 3965
	* configure.ac: Add --enable-prologue option.
	* configure, config.in: Regenerated.
	* session.h (prologue_searching): New field.
	* main.cxx (main): Parse new "-P" option.  Initialize based on
	autoconf flag.
	* stap.1.in, NEWS: Document it.
	* hash.cxx (find_hash): Include it in computation.
	* tapsets.cxx (query_func_info, query_cu): Respect it.

2007-02-06  Frank Ch. Eigler  <fche@elastic.org>

	* stapfuncs.5.in: Add docs for kernel_{long,int,short,char} and
	some user_string* variants.

2007-01-31  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (translate_pass): Remove old string impedance
	mismatch stuff. Modify included files.

2007-01-29  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac, configure: Bumped version to 0.5.13 for development.

2007-01-29  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (emit_module_init): Add some more type casts to printk
	args.

2007-01-29  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (emit_module_init): BZ3888. Add memory usage for the
	runtime to the printk.

2007-01-29  Frank Ch. Eigler  <fche@elastic.org>

	* main.cxx (main): For successful last_pass=4, print compiled module
	name.
	* cache.cxx (get_from_cache): Ditto.

2007-01-23  Mike Mason <mmlnx@us.ibm.com>

	* Makefile.am, configure.ac: Add support for
	stapprobes.socket man page.
	* configure, Makefile.in: Regenerate.
	* man/stapprobes.socket.5.in: Socket tapset man page.
	* stapprobes.5.in: Add stapprobes.socket(5) to "See Also" section.
	* stapfuncs.5.in: Add new string and sockets functions.

2007-01-23  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (loc2c_error): Correct vasprintf ignored-rc warning.

2007-01-22  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (mapvar::exists): Use new _stp_map_exists function.
	Testing for zero is no longer correct after changes from 2007-01-10
	below.

2007-01-18  Frank Ch. Eigler  <fche@elastic.org>

	* main.cxx (version): Add (C) 2007.
	* translate.cxx (emit_module_init): Add a KERN_DEBUG printk
	at module startup time to aid debugging and auditing.

2007-01-12  David Smith  <dsmith@redhat.com>

	* tapsets.cxx
	(dwarf_var_expanding_copy_visitor::visit_target_symbol): Since
	array behavior has changed (setting to 0 no longer deletes the
	array element), we delete the internal counter array element when
	providing target variable access in return probes.

2007-01-11  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in (elfutils_version): Bump to 0.125.
	Older libdw's have known bugs, though the ABI has not changed.

2007-01-10  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (mapvar::del): Call the new _stp_map_del
	function instead of setting to zero.

2007-01-01  Frank Ch. Eigler  <fche@redhat.com>

	* configure.ac: Bump version to 0.5.12 for release.
	* configure: Regenerated.
	* NEWS, AUTHORS: Populate & repopulate.

2006-12-29  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (*group:emit_module_init): flush stdout less for timing
	mode.  Also, Set probe_point variable ...
	* translate.cxx (emit_module_init): ... so on registration failure, a
	usable error message can be generated.

2006-12-29  Frank Ch. Eigler  <fche@redhat.com>

	PR 3523.
	* tapsets.cxx (common_probe_entryfn_prologue,epilogue): Restore
	support for -t (benchmarking) mode.
	* translate.cxx (emit_common_header,emit_module_init):Ditto.
	(emit_module_exit,emit_probe): Ditto, with most meat here.

2006-12-22  Josh Stone  <joshua.i.stone@intel.com>

	* stap.1.in: Document how to specify the size of global arrays.

2006-12-21  Josh Stone  <joshua.i.stone@intel.com>

	PR 3671
	* parse.cxx (parser::parse_global): Allow a maxsize on global arrays.
	* staptree.h (struct vardecl): Add the maxsize field.
	* staptree.cxx (vardecl::vardecl): Init. maxsize.
	(vardecl::set_arity): Don't allow arity 0 when there's a maxsize.
	(vardecl::compatible_arity): Ditto.
	(vardecl::print): Include maxsize in output.
	(target_symbol::print): Ditto.
	* translate.cxx (struct mapvar, mapvar::mapvar): Add maxsize.
	(mapvar::init): Init maps with the given maxsize if specified, else
	keep using MAXMAPENTRIES.
	(mapvar::set): Make the error message give the maxsize.
	(mapvar::add): Ditto, and check for overflow on pmap add.
	(c_unparser::getmap): Pass the maxsize from the vardecl to mapvar.

2006-12-21  David Smith  <dsmith@redhat.com>

	* hash.cxx (find_hash): Added two more options into the hash that
	change the generated C file - '-M' (merge) and '-t' (benchmark
	timing).

2006-12-20  David Smith  <dsmith@redhat.com>

	PR 3519.
	* Makefile.am: Added 'examples' directory to the 'EXTRA_DIST'
	variable so that the examples directory will be added to the
	distribution directory.  Added variables 'SAMPLE_DEST_DIR' and
	'SAMPLE_SRC' and target 'dist-add-samples' to copy some of the
	testsuite sample scripts to the examples directory when creating a
	distribution directory.
	* Makefile.in: Regenerated.
	* systemtap.spec.in: Added 'examples' directory to the %doc list
	so that the examples directory will be installed on a user's
	system.

2006-12-19  Frank Ch. Eigler  <fche@redhat.com>

	PR 3522.
	* tapsets.cxx (dwflpp::emit_address): Call
	_stp_module_relocate only once per session.

	Error message cleanup: duplicate elimination etc.
	* session.h (saved_errors): Store a set of 'em.
	(num_errors): Return set size.  Remove old numeric field.
	Update all callers.
	* elaborate.cxx (systemtap_session::print_errors):
	Print each encountered message just once.
	* staptree (semantic_error): Make msg2 writeable.
	Add a chain field.
	* tapsets.cxx (*var_expanding*:visit_target_symbol): Set saved
	semantic_error's chain field.
	* elaborate.cxx (register_library_aliases, visit_foreach_loop,
	visit_functioncall, derive_probes): Plop "while: ..." error
	message	prefix/suffix right into the semantic_error message string.
	* parse.cxx (lexer::scan): Identify erroneous token better
	in error message for unresolvable $N/@M command line args.
	* util.h (lex_cast_hex): Use std::hex, not std::ios::hex.

2006-12-18  David Smith  <dsmith@redhat.com>

	* Makefile.am (EXTRA_DIST): Added header files - cache.h, hash.h,
	mdfour.h, and util.h.
	* Makefile.in: Regenerated.

2006-12-16  Frank Ch. Eigler  <fche@elastic.org>

	* main.cxx (main): Print version strings if verbose >=2 .
	* tapsets.cxx (common_probe_entryfn_prologue): Decorate an
	emitted local with __restrict__.

2006-12-14  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (struct dwarf_var_expanding_copy_visitor): Added
	'return_ts_map' member variable.
	(dwarf_var_expanding_copy_visitor::visit_target_symbol):
	Optimization.  If we've already seen this target variable in this
	return probe, return the last replacement (instead of creating a
	new replacement).

2006-12-13  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (struct dwarf_var_expanding_copy_visitor): Added
	'add_probe' member variable.  Initialized it in ctor.
	(dwarf_var_expanding_copy_visitor::visit_target_symbol):
	Optimization.  Instead of generating one entry probe per target
	variable accessed in a return probe, now just generates one entry
	probe for all target variables accessed in a particular return
	probe.  It does this by creating a new probe in the new
	'add_probe' member variable.
	(dwarf_derived_probe::dwarf_derived_probe): If add_probe isn't
	NULL, make sure it gets derived later.

2006-12-11  Josh Stone  <joshua.i.stone@intel.com>

	* parse.cxx (parse::parse_literal): Enforce the lower bound on
	negative literals.

2006-12-11  David Smith  <dsmith@redhat.com>

	* hash.cxx (find_hash): Fixed a caching bug.  Bulk mode (relayfs)
	status should be figured into the hash since it changes the
	generated C code.

2006-12-08  Josh Stone  <joshua.i.stone@intel.com>

	PR 3681.
	* staptree.h (struct vardecl): Add a literal 'init' member for the
	initialization value of globals.
	* staptree.cxx (vardecl::vardecl): Initialize 'init' to NULL.
	(vardecl::print): Print global init value during pass-1 output.
	* main.cxx (printscript): Print global init values during verbose
	pass-2 output.
	* parse.cxx (parser::parse_global): Set the initialization literal of
	global vardecls.
	* translate.cxx (var::init): Don't unconditionally override the value
	of numeric globals when the module_param isn't used.
	(c_unparser::emit_global_param): Write numeric module_params directly
	into the global variable, as an int64_t instead of long.
	(c_unparser::emit_global): Add initialization to global declarations.
	Don't create a temp module_param long for numeric globals anymore.

2006-12-07  Josh Stone  <joshua.i.stone@intel.com>

	PR 3624.
	* tapsets.cxx (struct be_derived_probe): Add a new priority parameter
	for begin/end probes, and a comparison function for sorting.
	(be_builder::build): Parse the priority & pass it to be_derived_probe.
	(be_derived_probe_group::emit_module_init, emit_module_exit): Sort the
	probe list by priority before emitting any code.
	(register_standard_tapsets): Add new begin/end variants.
	* parse.cxx (parser::parse_literal): Allow negative numeric literals,
	by checking for a '-' unary operator right before a number.
	* stapprobes.5.in: Document the new begin/end syntax.

2006-12-06  Josh Stone  <joshua.i.stone@intel.com>

	PR 3623.
	* tapsets.cxx (timer_derived_probe_group::emit_module_decls): Restart
	the timers if we are in STARTING or RUNNING state.
	(hrtimer_derived_probe_group::emit_module_decls): Ditto.
	(be_derived_probe_group::emit_module_init): indicate error to the rest
	of the initialization if any begin probes fail.
	* translate.cxx (c_unparser::emit_module_init): Set the global error
	state on an initialization error so timers know to shut down.

2006-12-05  Frank Ch. Eigler  <fche@redhat.com>

	PR 3648.
	* main.cxx (main): Tweak error message for tapset script execution.
	Also catch those clever rogues who use stdin.

2006-11-30  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (common_probe_entryfn_prologue): Tweak
	insufficient stack detection logic.

2006-11-30  David Smith  <dsmith@redhat.com>

	* main.cxx (printscript): Prints global embedded code.  Not
	printing the global embedded code was causing bad caching
	behavior.

2006-11-29  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (struct dwarf_var_expanding_copy_visitor): Added
	'add_block' member variable.  Constructor sets it to NULL.
	(dwarf_var_expanding_copy_visitor::visit_target_symbol): Fixes the
	problem of accessing a cached target variable in a loop.  Cached
	target variable is assigned to a temporary variable, which can be
	safely access multiple times.  In addition, the cached value is
	deleted after being read.
	(dwarf_derived_probe::dwarf_derived_probe): Adds in the new block
	of code created in visit_target_symbol() to the beginning of the
	derived probe.

2006-11-28  David Smith  <dsmith@redhat.com>

	* tapsets.cxx
	(dwarf_var_expanding_copy_visitor::visit_target_symbol):
	Improved handling target variables in return probes by having a
	per-thread counter.

2006-11-26  Frank Ch. Eigler  <fche@redhat.com>

	PRs 2685, 3596, toward 2725.
	* tapsets.cxx (common_probe_entryfn_prologue): Skip probe on
	insufficient stack.
	(build_blacklist): Add a slew of lock-related calls.
	(query_module): Check for debuginfo architecture match.
	* translate.cxx (translate_pass): Add default MINSTACKSPACE.
	* configure.ac: Link stap with -lebl too.
	* configure: Regenerated.
	* stap.1.in: Document MINSTACKSPACE parameter.

2006-11-21  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (emit_module_init): Adapt to 2.6.19 utsname().

2006-11-21  Frank Ch. Eigler  <fche@elastic.org>

	PR 3556.
	* translate.cxx (emit_module_init): Emit code to check
	system_utsname against translate-time version/machine strings.

2006-11-20  David Smith  <dsmith@redhat.com>

	* tapsets.cxx
	(dwarf_var_expanding_copy_visitor::visit_target_symbol):  BZ
	1382.  Target variables can be accessed in return probes.  A new
	function entry probe is generated that saves the target variables
	so that they can be accesssed in the return probe.

2006-11-19  Frank Ch. Eigler  <fche@elastic.org>

	* main.cxx (main): Signal parse error if a tapset script
	is given as the user script.

2006-11-15  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (d_v_e_c_v::visit_target_symbol): Restore lost
	exception-saving functionality that improves error messages
	for incorrect $target expressions.
	(translate_components): Systematize error messages somewhat.
	* translate.cxx (emit_function, emit_probe): Clarify
	"array locals" error message.

2006-11-10  David Smith  <dsmith@redhat.com>

	* tapsets.cxx
	(dwarf_var_expanding_copy_visitor::visit_target_symbol): Minor
	improvement to error handling by throwing exceptions before
	allocations are done.

2006-11-10  Frank Ch. Eigler  <fche@elastic.org>

	* stap.1.in: On urging of Adam Jackson, add blurbs on array syntax
	and default limits.

2006-11-09  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (staprun_LDADD): Need PROCFLAGS here too.

2006-11-09  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (staprun_CFLAGS): New. Use PROCFLAGS.

	* configure.ac: Add PROCFLAGS. Processor-dependent
	compilation flags.
	* configure: Rebuilt.
	* Makefile.in: Rebuilt.

2006-11-09  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (dwarf_query::dwarf_query): Looks for "maxactive"
	return probe variant.
	(dwarf_derived_probe::dwarf_derived_probe): Initializes
	has_maxactive and maxactive_val member variables.
	(dwarf_derived_probe::register_function_variants): Matches
	"maxactive" return probe variant.
	(dwarf_derived_probe_group::emit_module_decls): Emits code to use
	maxactive data.
	(dwarf_derived_probe_group::emit_module_init): Ditto.

2006-11-08  David Smith  <dsmith@redhat.com>

	* cache.cxx (get_from_cache): To preserve semantics with
	non-cached use, if the last pass is 3, display the cached C
	source.

2006-11-08  Frank Ch. Eigler  <fche@elastic.org>

	* staptree.cxx (print_format::components_to_string): Quote ".
	(c_unparser::visit_print_format): Don't use lex_cast_qstring
	as it overdoes \ quoting.  Resemble ::visit_literal_string
	instead.

2006-11-08  Frank Ch. Eigler  <fche@elastic.org>

	* util.h (lex_cast_qstring): Move def'n here.  Also quote \.
	(stringify, lex_cast, lex_cast_hex): Move defn here.
	* buildrun.cxx, elaborate.cxx, main.cxx, staptree.cxx: Adapt.

2006-11-07  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (profile_derived_probe_group::emit_module_decls):
	Pass along incoming pt_regs to context of timer.profile handlers.

2006-11-06  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (var::init): Check for errors when
	allocating arrays of stats, as well as other arrays.

2006-11-06  David Smith  <dsmith@redhat.com>

	Added "limit EXP" support to foreach statements.
	* translate.cxx (c_tmpcounter::visit_foreach_loop): Handles
	"limit" member variable.
	(c_unparser::visit_foreach_loop): Ditto.
	* staptree.cxx (foreach_loop::print): Prints "limit EXP"
	addition.
	(traversing_visitor::visit_foreach_loop): Handles "limit" member
	variable.
	(deep_copy_visitor::visit_foreach_loop): Ditto.
	* staptree.h (struct foreach_loop): Added "limit" member
	variable.
	* stap.1.in: Added documentation for the "limit EXP" addition to
	foreach statement.
	* parse.cxx (lexer::scan): Added "limit" keyword for foreach
	statements.
	(parser::parse_foreach_loop): Parses "limit" keyword for foreach
	statements.
	* elaborate.cxx (symresolution_info::visit_foreach_loop): Handles
	"limit" member variable.
	(typeresolution_info::visit_foreach_loop): Ditto.

2006-11-03  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (emit_address): Emit calls to _stp_module_relocate
	for $target-variable addresses in relocatable sections.

2006-11-02  Martin Hunt  <hunt@redhat.com>

	* session.h (struct systemtap_session): Add symtab. This controls
	if a symbol table is generated and compiled into the module.

	* main.cxx (main): Set session.symtab to false. This could later
	enabled by a command-line option if necessary.

	* translate.cxx (emit_symbol_data): Don't write a symbol table if
	session.symtab is false.

	* tapsets.cxx (emit_module_decls): Remove stap_module array and
	module_relocate.
	(emit_module_init): Use "_stp_module_relocate".

	* Makefile.am (staprun_SOURCES): Add symbols.c
	* Makefile.in: Rebuilt.

2006-11-02  David Smith  <dsmith@redhat.com>

	* main.cxx (main): Added '-r' check.  If the user changes the
	kernel release to compile against, make sure pass 5 isn't
	performed (since the resulting module won't be installable).

2006-11-02  Frank Ch. Eigler  <fche@elastic.org>

	* Makefile.am: Install tapset/README too.
	* Makefile.in: Regenerated.

2006-11-01  Josh Stone  <joshua.i.stone@intel.com>

	* tapsets.cxx (timer_derived_probe_group::emit_interval): New -
	Fixes randomization for jiffies timers in ms mode.
	(timer_derived_probe_group::emit_module_decls): Use emit_interval.
	(timer_derived_probe_group::emit_module_init): Ditto.

2006-11-01  David Smith  <dsmith@redhat.com>

	* translate.cxx (delete_statement_operand_visitor::visit_symbol):
	Added referent assert.
	(delete_statement_operand_tmp_visitor::visit_arrayindex): Ditto.
	(c_tmpcounter::visit_array_in): Ditto.
	(c_unparser::visit_symbol): Ditto.
	(c_unparser_assignment::visit_symbol): Ditto.
	(c_unparser::load_map_indices): Ditto.
	(c_tmpcounter::visit_arrayindex): Ditto.
	(c_tmpcounter_assignment::visit_arrayindex): Ditto.
	(c_tmpcounter::visit_functioncall): Ditto.
	(c_unparser::visit_functioncall): Ditto.

2006-10-31  Frank Ch. Eigler  <fche@redhat.com>

	Probe registration rework.  Offline dwarf processing for better
	cross-instrumentation.
	* elaborate.h (derived_probe): Remove registration-related code
	generation API.  Add new function sole_location().
	(derived_probe_group): Reworked this and associated classes.
	* session.h (systemntap_session): Create individual per-category
	derived_probe_groups.
	* elaborate.cxx (derived_probe_group): Reworked.
	(alias_derived_probe): Switch to new derived_probe API.
	(semantic_pass_symbols): Ditto.
	* translate.cxx (mapvar init): Check for array initialization error.
	(emit_module_init): Handle such failures, at least in theory.
	(emit_module_exit): Switch to new derived_probe_group API.  Call
	cpu_relax() during shutdown busywait.
	(emit_common_header): Elide context variables for elided handler fns.
	(c_unparser::emit_probe): Implement new, improved duplicate
	elimination technique for probe handlers.  Leave two older ones
	behind as compile options for education.
	* tapsets.cxx (*): Reworked all probe registration code, moving
	it from derived_probes into derived_probe_groups.  Shrunk output
	code.  Temporarily disabled probe timing and perfmon/mark probes.
	(dwflpp): Use offline reporting, so that module matching and
	relocation is performed at run time.
	(dwarf_query): Remove flavour logic, now supplanted by other
	duplicate elimination code.
	(dwarf_derived_probe): Reworked construction, centralized
	module/section/offset computations.
	* tapsets.h (all_session_groups): New little helper.

	* main.cxx (main): For pass-2 message, print number of embeds too.
	* systemtap.spec.in: Add a "BuildRequires: dejagnu" for make check.
	* configure.ac: Bump version to 0.5.11.
	* configure: Regenerated.

2006-10-23  Li Guanglei <guanglei@cn.ibm.com>

	* lket.5.in: Rearranged the sections, add more details.

2006-10-30  David Smith  <dsmith@redhat.com>

	* stap.1.in: Added notes about new caching feature.

2006-10-24  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (build_blacklist): Added
	"atomic_notifier_call_chain" to the blacklist (Bugzilla #3379).

2006-10-23  David Smith  <dsmith@redhat.com>

	* main.cxx (printscript): New function containing code moved from
	main().
	(main): Added code to create cache directory, call function to
	generate hash, and see if we can use cached source/module.  If
	pass 4 is actually run to produce a new module, we call
	add_to_cache() to cache the result.
	* session.h (struct systemtap_session): Added hash/cache session
	data.
	* cache.cxx: New file handling adding/getting files from the
	cache.
	* cache.h: New header file for cache.cxx.
	* hash.cxx: New file containing C++ wrapper for routines in
	mdfour.c and the find_hash function which computes the hash file
	name for an input script.
	* hash.h: New header file for hash.cxx.
	* mdfour.c: New file containing MD4 hash code.
	* mdfour.h: New header file for mdfour.c.
	* util.cxx: New file containing several utility functions used by
	the caching code.
	* util.h: New header file for util.cxx.
	* Makefile.am: Added new C/C++ files.
	* Makefile.in: Regenerated.

2006-10-23  Li Guanglei <guanglei@cn.ibm.com>

	* configure.ac, Makefile.am: add lket-b2a.1.in
	* Makefile.in, configure: regenreated
	* ket-b2a.1.in: new man page for lket-b2a
	* lket.5.in: document signal trace hooks

2006-10-18  Roland McGrath  <roland@redhat.com>

	PR 2727
	* configure.ac (elfutils build): Pass --prefix and --exec-prefix
	options to elfutils configure.
	(elfutils_abs_srcdir): New substituted variable.
	* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): New variable.
	* configure, config.in, Makefile.in: Regenerated.

2006-10-16  Li Guanglei <guanglei@cn.ibm.com>

	* configure.ac: add the checking for mysql_config,
	mysqlclient library and header files
	* runtime/lket/b2a/Makefile.am: set compile flags
	according to the existance of mysql_config
	* Makefile.in, configure, testsuite/Makefile.in,
	runtime/lket/b2a/Makefile.in: regenerated

2006-10-12  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (emit_common_header): Add a
	kretprobe_instance pointer to struct context.
	(emit_symbol_data): Include absolute symbols.

	* tapsets.cxx (emit_common_header): Initialize
	the kprobe instance pointer to 0;
	(emit_probe_entries): Set kretprobe instance
	pointer if appropriate.


2006-10-11  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (in_kprobes_function): New function that looks up
	the values of '__kprobes_text_start' and '__kprobes_text_end' in
	the kernel to be able to automatically exclude functions marked as
	'__kprobes' (BZ# 2639).
	(blacklisted_p): Calls in_kprobes_function().
	(query_kernel_module): Utility function that finds the kernel module.
	* session.h (struct systemtap_session): Added kprobes_text
	variables - kprobes_text_initialized, kprobes_text_start, and
	kprobes_text_end.
	* elaborate.cxx (systemtap_session::systemtap_session):
	kprobes_text variables get initialized.

2006-10-10  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in (elfutils_version): Require 0.124 now.

2006-10-10  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac: Override incomplete mysql checking for now.
	* configure: Regenerated.

2006-10-10  Li Guanglei <guanglei@cn.ibm.com>

	* configure.ac: add the checking of mysql client library
	* Makefile.in, configure: regenerated

2006-09-29  Li Guanglei <guanglei@cn.ibm.com>

	* man: newly created dir for stapprobes
	* man/stapprobes.iosched.5, man/stapprobes.netdev.5, man/stapprobes.nfs.5,
	man/stapprobes.nfsd.5, man/stapprobes.pagefault.5, man/stapprobes.process.5,
	man/stapprobes.rpc.5, man/stapprobes.scsi.5, man/stapprobes.signal.5,
	man/stapprobes.tcp.5, man/stapprobes.udp.5: Some of these man pages are from
	the old stapprobes.5.in. Some are newly created(rpc, nfs, nfsd)
	* man/.cvsignore: ignore the generated man page files

2006-09-29  Li Guanglei <guanglei@cn.ibm.com>

	PR 3282
	* Makefile.am: add -DPKGLIBDIR='"$(pkglibexecdir)"' to AM_CPPFLAGS

2006-09-28  Josh Stone  <joshua.i.stone@intel.com>

	PR 3278
	* tapsets.cxx (hrtimer_derived_probe::emit_probe_entries): Only
	restart timers when the session is still active and we updated the
	expire time.

2006-09-27  Josh Stone  <joshua.i.stone@intel.com>

	* session.h (struct systemtap_session): Add kernel_base_release
	to store the kernel version without the -NNN suffix.
	* main.cxx (main): Generate and use kernel_base_release.
	* parse.cxx (eval_pp_conditional): Use kernel_base_release.
	* tapsets.cxx (profile_derived_probe::profile_derived_probe):
	Use kernel_base_release.

	* tapsets.cxx (timer_builder::build): Support a wide variety of
	timer varients -- jiffies, s/sec, ms/msec, us/usec, ns/nsec, and
	hz.  Use hrtimers automatically on kernels that have it.
	(timer_builder::register_patterns): Bind all of the new timer
	varients in one easy place.
	(register_standard_tapsets): Call timer_builder::register_patterns.
	(struct hrtimer_builder): Removed since timer_builder is generic.
	* stapprobes.5.in: Document new timer.* functionality.

	* tapsets.cxx (hrtimer_derived_probe_group::emit_probes): Add a
	shared global for the actual hrtimer resolution, _stp_hrtimer_res.
	(hrtimer_derived_probe_group::emit_module): Init _stp_hrtimer_res.
	(hrtimer_derived_probe::emit_interval): Limit intervals at a
	minimum to the hrtimer's actual resolution.
	(hrtimer_derived_probe::emit_probe_entries): Forward timers
	based on previous expiration instead of restarting relative.

2006-09-26  David Smith  <dsmith@redhat.com>

	* .cvsignore: Changed 'stpd' reference to 'staprun'.
	* INTERNALS: Ditto.
	* buildrun.cxx (run_pass): Ditto.
	* lket.5.in: Ditto.
	* stap.1.in: Ditto.
	* stapruncs.5.in: Ditto.
	* examples/small_demos/demo_script.txt: Ditto.
	* examples/small_demos/sys.stp: Ditto.

	* systemtap.spec.in: Created a new subpackage,
	"systemtap-runtime", that contains staprun.

	* Makefile.am: Renamed 'stpd' to 'staprun' and moved it to
	$(bindir).
	* Makefile.in: Regenerated from Makefile.am.

	* configure.ac: Incremented version number.
	* configure: Regenerated from configure.ac.

2006-09-22  Tom Zanussi  <zanussi@us.ibm.com>

	* stp_check.in: Add debugfs mounting.

2006-09-22  Li Guanglei <guanglei@cn.ibm.com>

	From Gui Jian <guijian@cn.ibm.com>
	* lket.5.in: document RPC trace hooks

2006-09-20  Josh Stone  <joshua.i.stone@intel.com>

	PR 3233
	* stapfuncs.5.in: Document new gettimeofday_ns.

2006-09-19  Tom Zanussi  <zanussi@us.ibm.com>

	* README: Add CONFIG_DEBUG_FS to config options.

2006-09-18  Josh Stone  <joshua.i.stone@intel.com>

	PR 3219
	From Eugeniy Meshcheryakov <eugen@debian.org>:
	* stapprobes.5.in: Correct misuse of '-' -> '\-' in manpage

2006-09-18  Martin Hunt  <hunt@redhat.com>

	* buildrun.cxx (run_pass): Remove "-m" option to stpd.
	* translate.cxx (translate_pass): #define STP_RELAYFS_MERGE
	if appropriate.

2006-09-13  Martin Hunt  <hunt@redhat.com>

	* buildrun.cxx (run_pass): Remove "-r" option to stpd.

2006-09-13  Will Cohen  <wcohen@redhat.com>

	* tapsets.cxx (perfmon_derived_probe_group::emit_module_init):
	Do not throw sematic error unless probes actually used.

2006-09-12  Will Cohen  <wcohen@redhat.com>

	PR 909
	* configure.ac: Add perfmon support options.
	* configure: Regenerated.

	* stapfuncs.5.in:
	* stapprobes.5.in: Document the perfmon support.

	* session.h, main.cxx: Track number of perfmon probes.
	* translate.cxx: Gen STP_PERFMON when perfmon probes.

	* elaborate.h:
	* elaborate.cxx (derived_probe_group):  Add register_probe() for
		perfmon probe.

	* tapsets.cxx (derived_probe::emit_common_header): Gen perfmon data.
	(perfmon_var_expanding_copy_visitor): New struct.
	(struct perfmon_derived_probe):
	(struct perfmon_derived_probe_group):
	(struct perfmon_builder):  New Perfmon probe handling structures.
	(register_standard_tapsets): Add perfmon tapset binding.
	(derived_probe_group_container):
	(~derived_probe_group_container):
	(derived_probe_group_container::register_probe):
	(derived_probe_group_container::emit_probes):
	(derived_probe_group_container::emit_module_init):
	(derived_probe_group_container::emit_module_init_call):
	(derived_probe_group_container::emit_module_exit): Add perfmon tapset.

	* tapset/perfmon.stp: New.
	* runtime/perf.c: New.
	* runtime/perf.h: New.
	* runtime/runtime.h: Include perf.c.

	* testsuite/buildok/perfmon01.stp: Test to exercise perfmon
		probes.
	* testsuite/systemtap.pass1-4/buildok.exp:

2006-09-12  Li Guanglei <guanglei@cn.ibm.com>

	From Li Xuepeng <xuepengl@cn.ibm.com>
	* lket.5.in: document nfs trace hooks

2006-09-08  David Smith  <dsmith@redhat.com>

	* elaborate.h (struct derived_probe): Replace emit_registrations()
	function with emit_registrations_start() and
	emit_registrations_end().
	(struct derived_probe_group): Added emit_module_init().
	(struct derived_probe_group_container): Added emit_module_init(),
	emit_module_init_call(), and emit_module_exit().
	* elaborate.cxx (struct alias_derived_probe): Updated
	emit_regitrations calls.
	* translate.cxx (emit_module_init): Instead of actually emitting
	per-probe-point registrations/unregistrations, let the session's
	derived_probe_group_container do it.
	* tapsets.cxx (emit_probe_timing): New function that handles
	probe timing code.
	(be_derived_probe::emit_registrations_start): Renamed from
	emit_registrations.
	(be_derived_probe_group::emit_module_init): New function that
	outputs probes create and destroy functions.
	(dwarf_derived_probe::emit_registrations): Removed, but most code
	moved to emit_registrations_start().
	(dwarf_derived_probe::emit_registrations_start): Handles details
	of multiple dwarf probe registrations.
	(dwarf_derived_probe::emit_registrations_end): Handles cleanup
	details of multiple dwarf probe registrations.
	(dwarf_derived_probe_group::emit_module_init): New function that
	outputs probes create and destroy functions.
	(timer_derived_probe::emit_registrations_start): Renamed from
	emit_registrations.  Added mutiple probe handling.
	(timer_derived_probe::emit_registrations_end): Handles cleanup
	details of multiple probe registrations.
	(timer_derived_probe_group::emit_module_init): New function that
	outputs probes create and destroy functions.
	(profile_derived_probe::emit_registrations_start): Renamed from
	emit_registrations.  Added mutiple probe handling.
	(profile_derived_probe::emit_registrations_end): Handles cleanup
	details of multiple probe registrations.
	(profile_derived_probe_group::emit_module_init): New function that
	outputs probes create and destroy functions.
	(mark_derived_probe::emit_registrations_start): Renamed from
	emit_registrations.  Added mutiple probe handling.
	(mark_derived_probe::emit_registrations_end): Handles cleanup
	details of multiple probe registrations.
	(mark_derived_probe_group::emit_module_init): New function that
	outputs probes create and destroy functions.
	(hrtimer_derived_probe::emit_registrations_start): Renamed from
	emit_registrations.  Added mutiple probe handling.
	(hrtimer_derived_probe::emit_registrations_end): Dummy function.
	(hrtimer_derived_probe_group::emit_module_init): New function that
	outputs probes create and destroy functions.
	(derived_probe_group_container::emit_module_init): Added function
	to call all probe group's emit_module_int functions.
	(derived_probe_group_container::emit_module_init_call): Added
	function to handle probe group initialization cleanup.
	(derived_probe_group_container::emit_module_exit): Added
	function to handle probe group cleanup.


2006-09-06  Frank Ch. Eigler  <fche@elastic.org>

	Add basic support for initialized globals.
	* parse.cxx (parse_global): Parse initialization clause, implement
	by rewriting to "probe begin { var = value }".
	* parse.h: Corresponding changes.
	* stap.1.in: Document optional initialization.

2006-09-04  Frank Ch. Eigler  <fche@elastic.org>

	Improve unresolved target-symbol error messages.
	* staptree.h (target_symbol): Add new field saved_conversion_error.
	* elaborate.cxx (typeresolution_info::visit_target_symbol): Throw
	that if found instead of generic error.
	* tapsets.cxx (t_v_f_c_v::visit_target_symbol): Set it.

2006-08-30  Li Guanglei <guanglei@cn.ibm.com>

	* stapprobes.5.in: document signal.*

2006-08-28  David Smith  <dsmith@redhat.com>

	* translate.cxx: Added inclusion of session.h.
	(translate_pass): Instead of asking each probe to emit itself, we
	ask the session's probes member variable to emit all the probes.
	* tapsets.cxx: Added inclusion of session.h.  Added a
	register_probe member function to all derived_probe based
	classes.  Added a derived_probe_group derived class for all probe
	types:
	(be_derived_probe_group): New class.
	(never_derived_probe_group): New class.
	(dwarf_derived_probe_group): New class.
	(timer_derived_probe_group): New class.
	(profile_derived_probe_group): New class.
	(mark_derived_probe_group): New class.
	(hrtimer_derived_probe_group): New class
	(derived_probe_group_container): New class.
	* elaborate.h: Removed inclusion of session.h since session.h now
	includes elaborate.h.
	(derived_probe): Added register_probe member function.
	(derived_probe_group): Added class definition.  This is the base
	class of all of the derived probe groups - dwarf, timer, etc.
	(derived_probe_group_container): Added class definition.  An
	instance of this class will be stored in the session and contain
	all the other probe groups.
	* elaborate.cxx (derived_probe_group::register_probe): Added
	derived_probe_group::register_probe stubs.
	(alias_derived_probe::register_probe): Added register_probe member
	function.
	(semantic_pass_symbols): After deriving a probe, the probes now
	register themselves with the session.
	* session.h: Includes elaborate.h to get
	derived_probe_group_container definition. systemtap_session class
	'probes' member variable switched from a vector of derived probes
	to a derived_probe_group_container.
	* buildrun.cxx: Added inclusion of session.h since it was removed
	from elaborate.h.
	* main.cxx: Added inclusion of session.h since it was removed
	from elaborate.h.
	* parse.h: Added forward struct declarations.
	* staptree.h: Removed inclusion of session.h.

2006-08-23  Josh Stone  <joshua.i.stone@intel.com>

	PR 3093
	From Eugeniy Meshcheryakov <eugen@debian.org>:
	* main.cxx (main): Use setenv instead of putenv, since gcc 4.2
	doesn't like assigning string constants to char*.  Also use
	const char* for result from getenv.
	* tapsets.cxx (dwflpp::setup): Copy string constant into a
	local array, to fix gcc 4.2 warning.

2006-08-22  Josh Stone  <joshua.i.stone@intel.com>

	PR 3094
	From Eugeniy Meshcheryakov <eugen@debian.org>:
	* stap.1.in: In groff, '-' produces a Unicode hyphen.  Use '\-'
	where a plain-old minus sign is desired, e.g., code examples.
	* lket.5.in, stapex.5.in, stapfuncs.5.in, stapprobes.5.in: ditto

2006-08-15  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in (elfutils_version): Require 0.123 now.

2006-08-14  David Smith  <dsmith@redhat.com>

	* elaborate.cxx (semantic_pass): Calls semantic_pass_optimize1()
	and semantic_pass_optimize2().
	(visit_functioncall): Removed setting relaxed_p since
	semantic_pass_opt5 does it.
	(semantic_pass_opt5): Goes ahead and removes duplicate functions
	since semantic_pass_opt1() won't be run again.
	(semantic_pass_optimize1): Renamed from semantic_pass_optimize().
	Moved semantic_pass_opt5() to semantic_pass_optimize2().
	(semantic_pass_optimize2): New function that contains optimization
	passes that need to be done after type inference.

2006-08-12  Frank Ch. Eigler  <fche@elastic.org>

	* Makefile.am (dist-hook): Make "make dist" dist.
	* Makefile.in: Regenerated.

2006-08-12  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac, Makefile.am: Descend into testsuite/
	directory.  Remove local test logic.
	* configure, Makefile.in: Regenerated.
	* runtest.sh: Not yet removed.
	* HACKING: Update for new testsuite layout.

2006-08-10  David Smith  <dsmith@redhat.com>

	* elaborate.cxx (duplicate_function_remover): Added class.
	(get_functionsig): Added function.
	(semantic_pass_opt5): New function merges duplicate identical
	functions into one function.
	(semantic_pass_optimize): Calls semantic_pass_opt5.

	* translate.cxx (c_unparser::emit_probe): Changed to merge
	duplicate probes bodies by making the duplicate probe just call
	the original probe (BZ# 2421).

2006-08-08  Li Guanglei <guanglei@cn.ibm.com>

	* stapprobes.5.in: document process.*, tcp.*, udp.*

2006-08-09  Thang Nguyen  <thang.p.nguyen@intel.com>

	* testsuite/buildok/iolock_test.stp: Updated for new ioblock.stp

2006-08-09  Josh Stone  <joshua.i.stone@intel.com>

	* examples/small_demos/proc_snoop.stp,
	testsuite/buildok/process_test.stp: Rename process.signal_* to
	new signal.* tapset.
	* stapprobes.5.in, testsuite/buildok/memory.stp: move pagefault
	to vm.* namespace

2006-08-08  Eugene Teo  <eteo@redhat.com>

	* tapset/context.stp (probemod): New function.
	* stapfuncs.5.in: Document it.
	* testsuite/buildok/probemod.stp: Test it.

2006-08-08  Li Guanglei <guanglei@cn.ibm.com>

	* stapprobes.5.in: document scsi.*, ioscheduler.*, netdev.* and
	pagefault.

2006-08-01  Li Guanglei <guanglei@cn.ibm.com>

	PR 2422
	* tapsets.cxx: calling get_module_dwarf(false) to give a
	warning to those modules without debuginfo and skip them

2006-07-19  Roland McGrath  <roland@redhat.com>

	* configure.ac, systemtap.spec.in: Bump version to 0.5.9.
	* configure: Regenerated.

	* systemtap.spec.in: Fix syntax in last change.

2006-07-19  David Smith  <dsmith@redhat.com>

	* testsuite/buildok/scsi.stp: Only run the scsi test if the scsi
	kernel subsystem is running.

2006-07-17  David Smith  <dsmith@redhat.com>

	* stapfuncs.5.in: Removed retval function description, since it
	has been removed.

2006-07-17  Roland McGrath  <roland@redhat.com>

	* configure.ac, systemtap.spec.in: Require elfutils-0.122.
	* configure: Regenerated.

	* systemtap.spec.in (Release): Use %{?dist}.

2006-07-17  Li Guanglei <guanglei@cn.ibm.com>

	* main.cxx: add LKET's tapsets into stap's default tapsets
	search path

2006-07-13  Frank Ch. Eigler  <fche@elastic.org>

	* systemtap.spec.in: Add formerly missing admonitional verb.

2006-07-13  David Smith  <dsmith@redhat.com>

	* parse.cxx (parser::expect_unknown2): New function that looks for
	2 possible token types.
	* parse.cxx (parser::expect_ident_or_keyword): New function that
	calls parser::expect_unknown2.
	* parse.cxx (parser::parse_symbol): Calls
	parser::expect_ident_or_keyword to allow keywords to appear when
	expanding target symbols (Bugzilla #2913).
	* parse.h: Added prototypes for parser::expect_unknown2 and
	parser::expect_ident_or_keyword.
	* testsuite/parseok/seventeen.stp: New test to check for allowing
	keywords when expanding target symbols.

2006-06-30  Josh Stone  <joshua.i.stone@intel.com>

	* tapsets.cxx (hrtimer_builder::build): Enable hrtimers on >=2.6.17.
	* tapsets.cxx (hrtimer_derived_probe::emit_probe_entries): Correct
	compilation errors, fix return value.

2006-06-30  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (dwflpp::dwfl_assert): Added optional extra_msg
	parameter to be able to print out extra error message.
	(dwflpp::setup): Uses new 'extra_msg' parameter to dwfl_assert()
	to ask user to install kernel-debuginfo when
	dwfl_linux_kernel_report_kernel() or
	dwfl_linux_kernel_report_modules() fails (Bugzilla #2669).

	* buildrun.cxx (compile_pass): Checks to make sure module build
	directory exists before trying to run make there (Bugzilla #2669).

2006-06-27  Roland McGrath  <roland@redhat.com>

	* runtest.sh: Don't use eval, use proper quoting.

	* tapsets.cxx (dwflpp::emit_address): New instance method.  Get
	relocation details from Dwfl to emit in comment after address constant.
	(dwflpp::loc2c_emit_address): Just call that.

2006-06-26  Li Guanglei <guanglei@cn.ibm.com>

	* lket.in.5: update to AIO event hooks

2006-06-23  Thang P Nguyen  <thang.p.nguyen@intel.com>

	* testsuite/buildok/tcp_test.stp: updated inet calls
	* testsuite/buildok/udp_test.stp: test udp tapset

2006-06-22  Thang P Nguyen  <thang.p.nguyen@intel.com>

	* testsuite/buildok/tcp_test.stp: test tcp tapset

2006-06-16  Roland McGrath  <roland@redhat.com>

	* configure.ac, systemtap.spec.in: Bump version to 0.5.8.
	* configure: Regenerated.

	* systemtap.spec.in: Fix bundled_elfutils setting so builds can
	possibly work.  Add comment admonishing losers not to touch it.

	* aclocal.m4, Makefile.in: Regenerated with automake-1.9.6-2.

2006-06-16  Li Guanglei <guanglei@cn.ibm.com>

	* lket.in.5: update to reflect the latest changes
	to LKET

2006-06-15  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in: Require elfutils-0.121.

2006-06-14  Frank Ch. Eigler  <fche@elastic.org>

	* README: Add kernel.org blurb based on text from
	Chuck Ebbert <76306.1226@compuserve.com>.

2006-06-09  Li Guanglei <guanglei@cn.ibm.com>

	* parse.cxx, staptree.cxx, staptree.h, translate.cxx:
	delete lket_trace_extra
	* lket.5.in: delete the description of backtrace in
	LKET

2006-06-08  Thang P Nguyen  <thang.p.nguyen@intel.com>

	* testsuite/buildok/ioblock_test.stp: test ioblock

2006-06-05  David Smith  <dsmith@redhat.com>

	* tapsets.cxx (dwflpp::express_as_string): New function.
	Extracted from dwflpp::literal_stmt_for_local() so that
	dwflpp::literal_stmt_for_return() could also call it.
	(dwflpp::literal_stmt_for_local): Portion extracted to create
	dwflpp::express_as_string().
	(dwflpp::literal_stmt_for_return): New function.  Adds support for
	new symbolic access ("$return") to return value in .return
	probes.  Fixes PR 1132.
	(target_variable_flavour_calculating_visitor::visit_target_symbol):
	Calls dwflpp::literal_stmt_for_return() when in a return probe and
	the variable name is "$return".
	(dwarf_var_expanding_copy_visitor::visit_target_symbol): Ditto.
	* stapfuncs.5.in: Noted that the retval() function is deprecated.
	* stapprobes.5.in: Corrected the name of the return value
	variable.
	* tapset/return.stp: Marked the retval() function as deprecated.
	* testsuite/semko/return01.stp: Added new test.
	* testsuite/semko/return02.stp: Ditto.

2006-06-05  Frank Ch. Eigler  <fche@elastic.org>

	PR 2645 cont'd.
	* elaborate.cxx (derive_probes): Pass down optional flag
	from alias reference to expansion.
	* testsuite/semok/twentytwo.stp: Test passing-down.
	* stapprobes.5.in: Specify passing-down property of optional flag.

2006-06-02  Frank Ch. Eigler  <fche@elastic.org>

	PR 2645 cont'd.
	* elaborate.cxx (find_and_build): Support optional wildcards too.
	(derive_probes): Change last argument to indicate optionalness of
	parent probe point (alias reference).
	(alias_expansion_builder): Shrink epilogue-mode alias body copying.
	Pass along alias reference optionality.
	* elaborate.h: Corresponding changes.
	* testsuite/semko/thirtyfive.stp, semok/twentytwo.stp: New tests.

2006-06-02  Josh Stone  <joshua.i.stone@intel.com>

	* testsuite/buildok/process_test.stp: add signal_handle test
	* examples/small_demos/proc_snoop.stp: log signal_handle

2006-06-02  Frank Ch. Eigler  <fche@elastic.org>

	PR 2645.
	* stapprobes.5.in: Document "?" probe point suffix.
	* parse.cxx (parse_probe_point): Recognize "?" optional suffix.
	* elaborate.cxx (derive_probes): Observe probe_point->optional.
	* staptree.h, staptree.cxx: Corresponding changes.
	* tapsets.cxx (never_derived_probe, never_builder): New classes.
	(register_standard_tapsets): Support "never" probe point.
	* testsuite/buildok/six.stp, parseok/five.stp: Modifed tests.

	* translate.cxx (emit_module_init): Format "-t" (benchmarking)
	cycle-time reports similarly to "-v" (verbose) times.

2006-06-02  David Smith  <dsmith@redhat.com>

	* .cvsignore: Added more files to ignore.

	* main.cxx (usage): Added exitcode parameter.
	(main): Improved a few error messages.  Also, when an error is
	given, stap now always exits with a status of 1.

	* testsuite/buildok/cmdline01.stp: New test.
	* testsuite/parseko/cmdline01.stp: Ditto.
	* testsuite/parseko/cmdline02.stp: Ditto.
	* testsuite/parseko/cmdline03.stp: Ditto.
	* testsuite/parseko/cmdline04.stp: Ditto.
	* testsuite/parseko/cmdline05.stp: Ditto.
	* testsuite/parseko/cmdline06.stp: Ditto.
	* testsuite/parseok/cmdline01.stp: Ditto.
	* testsuite/parseok/cmdline02.stp: Ditto.

2006-06-01  Josh Stone  <joshua.i.stone@intel.com>

	* tapsets.cxx (hrtimer_derived_probe::emit_interval): update
	API usage of hrtimers in preparation of getting exports from
	the kernel.
	(hrtimer_derived_probe::emit_probe_entries): ditto

2006-06-01  Li Guanglei <guanglei@cn.ibm.com>

	* parse.cxx, staptree.cxx, staptree.h, translate.cxx:
	add new function lket_trace_extra at script level
	* lket.5.in: Modified the description of backtrace in
	LKET

2006-05-29  Li Guanglei <guanglei@cn.ibm.com>

	* systemtap.spec.in: include lket-b2a in the rpm package

2006-05-27  Li Guanglei <guanglei@cn.ibm.com>

	* configure.ac: add conditional build of lket-b2a
	if glib2-devel is not found, just skips and gives
	a warning
	* Makefile.am:  add conditional build of lket-b2a
	* Makefile.in, configure: regenerated
	* runtime/lket/b2a/Makefile: deleted. Should be
	generated by configure

2006-05-26  Josh Stone  <joshua.i.stone@intel.com>

	* tapsets.cxx (build_blacklist): build the sets of blacklisted
	functions and function returns.  Manually added many __kprobes
	functions that should not be probed.
	(dwarf_query::dwarf_query): Call build_blacklist.
	(dwarf_query::blacklisted_p): Use blacklist sets.

2006-05-25  Josh Stone  <joshua.i.stone@intel.com>

	* parse.cxx (parser::scan_pp): Free memory for tokens that are
	thrown away in the preprocessing stage.
	* tapsets.cxx
	(dwarf_var_expanding_copy_visitor::visit_target_symbol):
	Free allocated memory when supressing target-variable errors

2006-05-25  David Smith  <dsmith@redhat.com>

	* testsuite/semok/twentyone.stp: New file.

2006-05-24  Frank Ch. Eigler  <fche@elastic.org>

	Pass 4 speedup.
	* tapsets.cxx (derived_probe::emit_common_header): New
	function, to emit code formerly inlined by
	emit_probe_prologue/epilogue.
	* translate.cxx (emit_common_header): Call it.
	* elaborate.h: Corresponding changes.

2006-05-24  David Smith  <dsmith@redhat.com>

	* elaborate.cxx (isglob): New function.
	(match_key::globmatch): New function.
	(match_node::find_and_build): Uses isglob() and
	match_key::globmatch() to provide support for wildcards such as
	"kernel.syscall.*read*" (Bugzilla #1928).
	* elaborate.h (match_key::globmatch): Added function declaration.
	* parse.cxx (parser::parse_probe_point): Collects one or more
	tokens into a single probe-point functor string.

	* testsuite/parseko/twentytwo.stp: New file.
	* testsuite/parseok/sixteen.stp: New file.

2006-05-24  David Smith  <dsmith@redhat.com>

	* testsuite/parseko/cmdlinearg01.stp: New file.
	* testsuite/parseko/cmdlinearg02.stp: New file.
	* testsuite/parseko/eighteen.stp: New file.
	* testsuite/parseko/foreachstmt01.stp: New file.
	* testsuite/parseko/foreachstmt02.stp: New file.
	* testsuite/parseko/foreachstmt03.stp: New file.
	* testsuite/parseko/foreachstmt04.stp: New file.
	* testsuite/parseko/foreachstmt05.stp: New file.
	* testsuite/parseko/forstmt01.stp: New file.
	* testsuite/parseko/forstmt02.stp: New file.
	* testsuite/parseko/forstmt03.stp: New file.
	* testsuite/parseko/forstmt04.stp: New file.
	* testsuite/parseko/functiondecl01.stp: New file.
	* testsuite/parseko/functiondecl02.stp: New file.
	* testsuite/parseko/functiondecl03.stp: New file.
	* testsuite/parseko/functiondecl04.stp: New file.
	* testsuite/parseko/functiondecl05.stp: New file.
	* testsuite/parseko/functiondecl06.stp: New file.
	* testsuite/parseko/functiondecl07.stp: New file.
	* testsuite/parseko/ifstmt01.stp: New file.
	* testsuite/parseko/ifstmt02.stp: New file.
	* testsuite/parseko/nineteen.stp: New file.
	* testsuite/parseko/preprocess01.stp: New file.
	* testsuite/parseko/preprocess02.stp: New file.
	* testsuite/parseko/preprocess03.stp: New file.
	* testsuite/parseko/preprocess04.stp: New file.
	* testsuite/parseko/preprocess05.stp: New file.
	* testsuite/parseko/preprocess06.stp: New file.
	* testsuite/parseko/preprocess07.stp: New file.
	* testsuite/parseko/preprocess08.stp: New file.
	* testsuite/parseko/preprocess09.stp: New file.
	* testsuite/parseko/probepoint01.stp: New file.
	* testsuite/parseko/probepoint02.stp: New file.
	* testsuite/parseko/probepoint03.stp: New file.
	* testsuite/parseko/seventeen.stp: New file.
	* testsuite/parseko/ternarystmt01.stp: New file.
	* testsuite/parseko/twenty.stp: New file.
	* testsuite/parseko/twentyone.stp: New file.
	* testsuite/parseko/whilestmt01.stp: New file.
	* testsuite/parseko/whilestmt02.stp: New file.

2006-05-24  Li Guanglei <guanglei@cn.ibm.com>

	* configure.ac: add lket.5 & runtime/lket/b2a
	* Makefile.am:  add lket & runtime/lket/b2a
	* aclocal.m4, Makefile.in, configure: regenerated
	* runtime/lket/b2a/*: a binary to ascii converter used
	to convert LKET's default binary trace data.
	* lket.5.in: add intro of lket-b2a converter.

2006-05-23  David Smith  <dsmith@redhat.com>

	* parse.cxx (parse_for_loop): Corrected error message.

2006-05-22  David Smith  <dsmith@redhat.com>

	* elaborate.cxx (find_and_build): Fixed issue #2643.  Wildcard
	code was being too optimistic.

2006-05-22  Li Guanglei <guanglei@cn.ibm.com>

	* lket.in.5: draft version of manpage for LKET
	* Makefile.in, configure, stap.1.in: add lket.in.5

2006-05-18  Frank Ch. Eigler  <fche@elastic.org>

	Organize "-t" output by script/parse level probes rather than
	derived-probes.
	* elaborate.cxx (derived_probe ctor): Remove name field setting.
	(alias_derived_probe): New class.
	(alias_expandion_builder::build): Create an instance of the above
	instead of parse-tree-level plain probe.
	* elaborate.h: Corresponding changes.
	(derived_probe::basest): Define.
	* staptree.cxx (probe ctor): Set new name field.
	* staptree.h (probe): Corresponding changes.
	(probe::basest): New field.
	* tapsets.cxx (emit_probe_prologue, emit_probe_entries):
	Switch to basest() probe name for Stat instance.
	(dwarf_derived_probe ctor): Stash away base probe.
	* translate.cxx (unparser::emit_probe): Remove index
	operand, just use probe name to generate symbols.
	(emit_module_init): Reorganize -t output in unregister functions.
	(translate_pass): Remove unparser::current_probenum field and all
	uses.
	* translate.h: Corresponding changes.

2006-05-18  Li Guanglei <guanglei@cn.ibm.com>

	* tapset/LKET/*: tracing tapsets of LKET
	* tapset/context.stp: add stp_pid() func
	* tapset/ppc64/syscalls.stp: add conditional preprocessing
	since sys64_time is removed from kernel >= 2.6.16

2006-05-18  Li Guanglei <guanglei@cn.ibm.com>

	* tapset/tskschedule.stp: deleted, merge into scheduler.stp
	* tapset/scheduler.stp:   incorporate tskschedule.stp
	* testsuite/buildok/tskschedule.stp: deleted, merge into
	  sched_test.stp
	* testsuite/buildok/sched_test.stp: incorporate tskschedule.stp

2006-05-17  Josh Stone  <joshua.i.stone@intel.com>

	* testsuite/buildok/sched_test.stp: test scheduler tapset
	* examples/small_demos/sched_snoop.stp: demo scheduler tapset

2006-05-18  Li Guanglei <guanglei@cn.ibm.com>

	* testsuite/buildok/ioscheduler.stp: testcase for ioscheduler.stp
	* testsuite/buildok/memory.stp:      testcase for memory.stp
	* testsuite/buildok/networking.stp:  testcase for networking.stp
	* testsuite/buildok/scsi.stp:        testcase for scsi.stp
	* testsuite/buildok/tskschedule.stp: testcase for tskschedule.stp

2006-05-18  Li Guanglei <guanglei@cn.ibm.com>

	* tapset/ioscheduler.stp: generic IO scheduler tapsets from LKET
	* tapset/memory.stp:      generic pagefault tapsets from LKET
	* tapset/networking.stp:  generic networking tapsets from LKET
	* tapset/scsi.stp:        generic scsi tapsets from LKET
	* tapset/tskschedule.stp: generic task scheduler tapsets from LKET
	* tapset/process.stp:     changes to process.exec alias

2006-05-16  David Smith  <dsmith@redhat.com>

	* parse.cxx (parser::parser): Added initializer for 'context'
	member variable.
	(tt2str): Added support for new tok_keyword type.
	(operator <<): Ignores keyword content when outputting error
	message.
	(lexer::scan): Recognizes keywords, such as 'probe', 'global',
	'function', etc. and classifies them as type 'tok_keyword'.  This
	causes keywords to become reserved so they cannot be used for
	function names, variable names, etc.
	(parser::parse): Changed tok_identifier to tok_keyword when looking
	for "probe", "global", or "function".  Also sets context member
	variable which remembers if we're in probe, global, function, or
	embedded context.
	(parser::parse_probe, parser::parse_statement)
	(parser::parse_global, parser::parse_functiondecl)
	(parser::parse_if_statement, parser::parse_delete_statement)
	(parser::parse_break_statement, parser::parse_continue_statement)
	(parser::parse_for_loop, parser::parse_while_loop)
	(parser::parse_foreach_loop, parser::parse_array_in): Looks for
	tok_keyword instead of tok_identifier.
	(parser::parse_probe_point): Allows keywords as part of a probe
	name, since "return" and "function" are keywords.
	(parser::parse_return_statement): Looks for tok_keyword instead of
	tok_identifier.  Make sure we're in function context.
	(parser::parse_next_statement): Looks for tok_keyword instead of
	tok_identifier.  Make sure we're in probe context.
	* parse.h: Added parse_context enum.  Added 'tok_keyword' to
	token_type enum.  Added parse_context 'context' member variable to
	parser class.
	* stap.1.in: Because the string() function has been removed,
	the 'string()' function reference has been changed to a 'sprint()'
	function reference.
	* stapex.5.in: Ditto.
	* stapfuncs.5.in: The description of the string() and hexstring()
	functions has been removed.
	* testsuite/buildok/context_test.stp: Calls to the string()
	function were converted to sprint() function calls.
	* testsuite/buildok/fifteen.stp: Ditto.
	* testsuite/buildok/nineteen.stp: Ditto.
	* testsuite/buildok/process_test.stp: Ditto.
	* testsuite/buildok/task_test.stp: Ditto.
	* testsuite/buildok/timestamp.stp: Ditto.
	* testsuite/buildok/twentyone.stp: Ditto.
	* testsuite/semok/args.stp: Ditto.
	* testsuite/semok/seven.stp: Ditto.
	* testsuite/buildok/fourteen.stp: Calls to log()/string() were
	converted to a call to printf().
	* testsuite/buildok/sixteen.stp: Ditto.
	* testsuite/buildok/thirteen.stp: Ditto.
	* testsuite/buildok/twentythree.stp: Ditto.
	* testsuite/buildok/twentytwo.stp: Ditto.
	* testsuite/buildok/seven.stp: Calls to the string()
	function were converted to sprint() calls.  Calls to the
	hexstring() function were converted to sprintf() calls.
	* testsuite/semok/eleven.stp: Ditto.
	* testsuite/buildok/seventeen.stp: Calls to log()/hexstring() were
	converted to a call to printf().
	* testsuite/semko/nineteen.stp: Ditto.
	* testsuite/parseok/three.stp: Because keywords are reserved, a
	variable named 'string' was renamed to 'str'.
	* testsuite/parseok/two.stp: Because keywords are reserved, a
	variable named 'global' was renamed to 'gbl'.
	* testsuite/transko/two.stp: Because the parser now checks for
	'next' and 'return' statement context, a 'next' statement was
	removed from a function and a 'return' statement was removed from
	a probe.

2006-05-15  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx, translator.cxx (*): Designate more emitted
	functions as static.
	* translator.cxx (visit_print_format): Correct regression
	regression from two weeks ago.
	* stapfuncs.5.in: Tweak wording.  Deprecate returnval() in favour
	of retval().

2006-05-12  Thang P Nguyen  <thang.p.nguyen@intel.com>

	* testsuite/buildok/probefunc.stp: test probefunc()

2006-05-12  Frank Ch. Eigler  <fche@elastic.org>

	* stapfuncs.5.in: Clarify backtrace-related functions.

2006-05-11  David Smith  <dsmith@redhat.com>

	* tapset/ctime.stp: New file.

2006-05-09  Josh Stone  <joshua.i.stone@intel.com>

	* examples/small_demos/proc_snoop.stp: monitor all process events.
	* testsuite/buildok/task_test.stp: test compilation of all task
	functions.
	* testsuite/buildok/process_test.stp: test all process events and
	associated variables.

2006-05-09  Will Cohen  <wcohen@redhat.com>

	PR 2228
	* parse.h:
	* parse.cxx: Add << operator for struct source_loc.
	* translate.cxx (emit_module_init): Print location of probe in script.

2006-05-09  Li Guanglei <guanglei@cn.ibm.com>

	PR 2520
	* main.cxx: add -M option to stop merge per-cpu files in bulk mode
	* session.h: add merge member into systemtap_session
	* buildrun.cxx: generate stpd_cmd to stop merge per-cpu files if -M
	option is turned on by stap.

2006-05-08  Li Guanglei <guanglei@cn.ibm.com>

	PR 2627
	* elaborate.cxx: epilogue style alias expansion
	* parse.cxx: parse += alias definition
	* staptree.h: add epilogue_style member to probe_alias
	* stap.1.in: add the description of epilogue style alias
	* testsuite/parseok/fifteen.stp: testcase for epilogue style alias

2006-05-05  Roland McGrath  <roland@redhat.com>

	* configure.ac (build_elfutils): Pass CFLAGS to elfutils configure,
	editting out -Wall.
	* configure: Regenerated.

2006-05-05  Frank Ch. Eigler  <fche@elastic.org>

	PR 2643
	* testsuite/buildok/syscalls.stp: Take "-u" away again.
	* configure.ac, systemtap.spec.in: Bump version to 0.5.7.
	* configure: Regenerated.

2006-05-05  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac, systemtap.spec.in: Bump version to 0.5.6.
	* configure: Regenerated.

2006-05-05  Will Cohen  <wcohen@redhat.com>

	* small_demos/fileopen.stp: Shows use of target() to look at pid.
	* small_demos/rwtiming.stp: Shows per executable histograms of time
	spent in read and write system calls.

2006-05-05  Eugene Teo  <eteo@redhat.com>

	PR 2433
	* tapsets.cxx (dwarf_query::blacklisted_p): Extend the list of
	blacklisted .return probes to include "do_exit". Correct funcname
	typo for "sys_groupexit".
	* tapset/syscalls.stp: Remove .return probe aliases of never-
	returning syscall.exit and syscall.exit_group calls.

2006-05-05  David Smith  <dsmith@redhat.com>

	* translate.cxx (mapvar::exists): Added code for string array
	handling.  Otherwise, string array elements always exist.

2006-05-03  Josh Stone  <joshua.i.stone@intel.com>

	PR 2506
	* tapsets.cxx (dwarf_query::blacklisted_p): skip probes in .exit.*

2006-05-02  Will Cohen  <wcohen@redhat.com>

	* translate.cxx (emit_module_init): Move closing '}' inside #ifdef.

2006-05-02  Will Cohen  <wcohen@redhat.com>

	PR 2228
	* stap.1.in: Document "-t" option.
	* main.cxx (main): Add "-t" option for collecting timing information.
	* session.h (systemtap_session): Corresponding changes.
	* tapsets.cxx (emit_probe_prologue, emit_probe_epilogue,
	emit_probe_entries):
	* translate.cxx: (emit_common_header, emit_module_init,
	translate_pass): Add time collection of timing information.


2006-05-01  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (visit_print_format): Fix regression in
	"printf" pseudo-result initialization.

2006-04-30  Frank Ch. Eigler  <fche@elastic.org>

	PR 2610.
	* translate.cxx (c_unparser::visit_arrayindex, visit_stat_op):
	Detect empty aggregates consistently.
	(visit_print_format): Ditto.  Also detect errors due to
	argument evaluation.
	(translator_output::*): Add a flush before a failing assert,
	to produce more context when debugging.

2006-04-25  Frank Ch. Eigler  <fche@elastic.org>

	* Makefile.am: Removed "rpm" target.
	* Makefile.in, aclocal.m4: Regenerated.

2006-04-25  Frank Ch. Eigler  <fche@elastic.org>

	* elaborate.cxx (typeresolution_info::unresolved,invalid,
	mismatch): Print current function/probe name in error message.
	(semantic_pass_types): Pass sufficient information.
	* elaborate.h: Corresponding changes.

2006-04-25  Frank Ch. Eigler  <fche@elastic.org>

	PR 2427.
	* staptree.cxx (varuse_collecting_visitor::visit_embeddedcode):
	Support /* pure */ declaration.  Stop using __tvar_ naming hack.
	(v_c_u::visit_print_format): Mark sprint and sprintf as
	side-effect-free.
	(deep_copy_visitor::visit_print_format): Propagate raw_components.
	* stap.1.in: Document declaration.
	* elaborate.cxx (semantic_pass_opt2): Verbose message tweak.
	(dead_stmtexpr_remover): Extend for more aggressive optimization.
	* tapsets.cxx (dwarf,mark_var_expanding_copy_visotor): Add
	/* pure */ declaration to rvalue expansions.
	* tapset/*.stp: Added /* pure */ declarations to many functions.
	* testsuite/parseok/unparsers.stp: Propagate guru mode flag.
	* testsuite/buildok/twentyfour.stp: New test.

2006-04-24  Frank Ch. Eigler  <fche@elastic.org>

	PR 2599.
	* elaborate.cxx (visit_assignment): Tolerate null current_expr.
	* testsuite/semok/optimize.stp: Add relevant tests.

2006-04-23  Eugene Teo  <eteo@redhat.com>

	PR 2149
	* translate.cxx (mapvar::set): Test _stp_map_set_xx() for
	array overflows.

2006-04-23  Eugene Teo  <eteo@redhat.com>

	* small_demos/ansi_colors.stp: Add an example of using octal
	escape sequences to display all possible ansi colors.

2006-04-21  Eugene Teo  <eteo@redhat.com>

	PR 1326
	* translate.cxx (c_unparser::visit_binary_expression): Handle
	negative left and right shift count.

2006-04-21  Frank Ch. Eigler  <fche@elastic.org>

	PR 953
	* elaborate.h (derived_probe): Add field "name".  Stop passing
	"probe index" to other emit_* calls.
	(emit_probe_context_vars): New member function.
	* elaborate.cxx (derived_probe ctor): Generate unique name.
	* translate.cxx (*): Adapt to index->name.
	(emit_probe): Realize that probe locals only occur at nesting=0.
	* tapsets.cxx (*derived_probe::emit_*): Adapt to index->name.
	(mark_var_expanding_copy_visitor): New class to process $argN.
	(mark_derived_probe ctor): Call it.
	(mark_derived_probe::emit_probe_context_vars): Do it.
	* buildrun.cxx (compile_pass): Add more optional gcc verbosity.
	Add CFLAGS += -freorder-blocks.
	* testsuite/buildok/marker.stp: New test.

2006-04-19  Eugene Teo  <eteo@redhat.com>

	PR 2014
	* parse.cxx (lexer::scan): Added \[0-7]* case to preserve
	octal escape sequences.

2006-04-18  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (install-data-local): Another try.

2006-04-18  Frank Ch. Eigler  <fche@elastic.org>

	PR 2220
	* translate.cxx (visit_statement): Tolerate 0 first argument.
	(visit_for_loop, visit_foreach_loop): Call it thusly for condition
	expression.
	(visit_embededcode, visit_block, visit_null_statement): Don't
	call visit_statement() at all.

2006-04-18  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (install-data-local): Tweak previous fix.
	(install-data-local):

2006-04-18  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (install-data-local): Rewrite. Set
	ownership and permissions for all files and directories
	under runtime and tapset. Restrict files to source code.

	* Makefile.in: Rebuilt.

2006-04-18  Eugene Teo  <eteo@redhat.com>

	PR 1341
	* main.cxx (main): Use TMPDIR instead of hard-coded /tmp.

2006-04-17  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (mark_derived_probe::emit_{de}registrations):
	Use cmpxchg to synchronize.

2006-04-12  Tom Zanussi  <zanussi@us.ibm.com>

	PR 2538
	* buildrun.cxx (compile_pass): Remove space
	between -I and runtime path.

2006-04-12  Martin Hunt  <hunt@redhat.com>

	PR 2497
	* translate.cxx (translate_pass): Don't
	reset STP_STRING_SIZE if it was already defined.
	Set it to 1024 by default.

2006-04-10  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (visit_print_format): Call
	_stp_snprintf() instead of snprintf().

2006-04-09  Martin Hunt  <hunt@redhat.com>

	Add binary printf support.

	* elaborate.cxx (visit_print_format): Don't include
	conv_literal or conv_size  in components vector.
	Add conv_binary to switch statement.

	* translate.cxx (visit_print_format): Eliminate
	special cast to (long long) for pe_long because new
	vsnprintf uses int64_t.

	* staptree.h (struct print_format): Add conv_binary and conv_size.

	* staptree.cxx (components_to_string): Add conv_binary case.
	Add conv_size case.
	(string_to_components): Add cases for 'b' and 'n'

2006-04-08  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (resolve_prologue_endings): Rewrote.
	(resolve_prologue_endings2): Removed.

	* gen-stapmark.h: Emit a 0-arity marker.
	* stapmark.h: Regenerated for arities 0..6.

2006-04-04  Roland McGrath  <roland@redhat.com>

	* configure.ac: Bump version to 0.5.5.
	Require elfutils-0.120.
	* configure: Regenerated.
	* systemtap.spec.in: Likewise.

	* main.cxx (version): Use dwfl_version.

	* loc2c.c (array_stride): stride_size -> byte_stride

2006-04-04 Tom Zanussi  <zanussi@us.ibm.com>

	* stp_check: Change test for relay vs relayfs

2006-03-30  Martin Hunt  <hunt@redhat.com>

	* tapsets.cxx (dwarf_derived_probe::emit_registrations):
	Change maxactive so single-processor kernels using
	kretprobes don't get lots of dropped probes.

2006-03-30  Frank Ch. Eigler  <fche@elastic.org>

	PR 953, part 1
	* tapsets.cxx: (mark_derived_probe*): New classes.
	(register_standard_tapsets): Register kernel/module.mark() family.
	* stapmark.h: New header for static instrumentation markers.
	* gen-stapmark.h: New perl script to generate it.
	* elaborate.cxx (derived_probe ctor): Ignore null location*.

2006-03-29  Josh Stone  <joshua.i.stone@intel.com>

	* tapsets.cxx (hrtimer_derived_probe::*): creates a probe point
	based on the hrtimer APIs.
	* tapsets.cxx (hrtimer_builder::*):  parses the user's time-spec
	into a 64-bit nanosecond value, and calls the appropriate
	derived_probe.
	* tapsets.cxx (register_standard_tapsets): add hrtimer bindings
	* translate.cxx (translate_pass): add linux/random.h include,
	used for generating 64-bit random numbers for hrtimers.

2006-03-28  Martin Hunt  <hunt@redhat.com>

	* testsuite/buildok/syscall.stp: Update so
	it works again.

2006-03-16 Tom Zanussi  <zanussi@us.ibm.com>

	* configure.ac: Revert relayfs version check.
	* configure: Reverted.
	* translate.cxx (compile_pass): Remove relayfs include path.

2006-03-15 Tom Zanussi  <zanussi@us.ibm.com>

	* configure.ac: Add check for relayfs version.
	* configure: Regenerated.
	* stp_check.in: Remove bundled relayfs loading/compilation, add
	check for relay (vs relayfs).

2006-03-13  Josh Stone  <joshua.i.stone@intel.com>

	* safety/safety.py: Support IA64 disassembly matching.
	* safety/data/opcodes-ia64: new opcode rules for IA64.
	* safety/data/references: Add references used by example scripts
	when compiled for IA64.

2006-03-13  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (emit_globals): Tag globals, especially the locks,
	as __cacheline_aligned.

2006-03-09  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (emit_locks): Emit dummy references to unlock_ ...
	(emit_module_init): ... and probe_point.

2006-03-06  Frank Ch. Eigler  <fche@elastic.org>

	PR 2425
	* staptree.cxx (varuse_collecting_visitor::visit_embeddedcode):
	Realize that $var-setter functions have side-effects.
	* testsuite/transok/tval-opt.stp: New test.

2006-03-06  Martin Hunt  <hunt@redhat.com>

	* buildrun.cxx (run_pass): Add "-u username".
	* stapfuncs.5.in: Document system().

2006-03-06  Frank Ch. Eigler  <fche@elastic.org>

	* stapex.5.in: Use \[aq] for plain single quotes for encoding
	variation tolerance.

2006-03-03  Josh Stone  <joshua.i.stone@intel.com>

	* main.cxx (main): search forward for dashes in the kernel release,
	to work properly with release names with more than one dash.  Also
	* parse.cxx (eval_pp_conditional): ditto
	* tapsets.cxx (profile_derived_probe::profile_derived_probe): ditto
	* safety/safety.py (StaticSafety::__build_search_suffixes): ditto,
	and add copyright & GPL tag

	PR 2390
	* main.cxx (main): expand search path so that revision w.x.y.z
	searches w.x.y.z, w.x.y, and w.x.

2006-03-03  Frank Ch. Eigler  <fche@elastic.org>

	* tapset/indent.stp, indent-default.stp: New little tapset.
	* stapfuncs.5.in: Document it.
	* testsuite/buildok/indent.stp: Build it.

2006-02-27  Josh Stone  <joshua.i.stone@intel.com>

	* safety/*: Add a static safety checker.

2006-02-25  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (var::init): Don't crush string module_params.
	(emit_global_param): New function, forked out of emit_global,
	to put module_param calls at the bottom of C file.
	* translate.h: Corresponding changes.

2006-02-23  Frank Ch. Eigler  <fche@elastic.org>

	PR 1304
	* parse.cxx (lexer): Take systemtap_session argument.
	(lexer::scan): Support $1..$NNNN and @1...@NNNN expansion.
	* stap.1.in: Document this.
	* testsuite/semok/args.stp: New test.
	* translate.cxx (var::init, emit_global): Emit code to allow
	named module parameters to initialize global string/number scalars.
	* stap.1.in: Don't document this yet.

	PR 2334
	* main.cxx (main): Clarify "-v" option repeatibility.
	* stap.1.in: Ditto.

2006-02-23  Roland McGrath  <roland@redhat.com>

	* Makefile.am (AUTOMAKE_OPTIONS): New variable, set dist-bzip2.
	* Makefile.in: Regenerated.

2006-02-23  Martin Hunt  <hunt@redhat.com>

	PR 1989. Adds support for %p in printf
	* staptree.h (struct print_format): Add conv_unsigned_ptr.
	* staptree.cxx (components_to_string): Output 'p'
	for conv_unsigned_ptr.
	* elaborate.cxx (visit_print_format): Add case for
	conv_unsigned_ptr.

2006-02-23  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (install-data-local): Create tapset/i686 and
	tapset/x86_64 directories. This fixes a problem where they
	were included, but had bad permissions.
	* Makefile.in: Rebuilt.

2006-02-22  Frank Ch. Eigler  <fche@elastic.org>

	* stapfuncs.5.in: Document get_cycles().
	* testsuite/buildok/timestamp.stp: Build it and its friends.

2006-02-22  Frank Ch. Eigler  <fche@elastic.org>

	PR 2293.
	* tapsets.cxx (emit_probe_epilogue): Emit early local_irq_save().
	(emit_probe_epilogue): ... and matching _restore().

	* main.cxx (main): Emit a "hello, I'm starting" message
	before pass 5 in verbose mode.

2006-02-17  Frank Ch. Eigler  <fche@elastic.org>

	* stapfuncs.5.in (cpu): Document contextinfo function.

2006-02-15  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (varlock*): Removed now unnecessary class.
	(aggregation_locks): Renamed field to aggregations_active.

2006-02-14  Frank Ch. Eigler  <fche@elastic.org>

	* stapfuncs.5.in: Document new queue_stats tapset.
	* elaborate.cxx (*): Put "while:" clarification messages before a
	thrown semantic error.
	* staptree.cxx (print_format::string_to_components): Correct
	parse of "%%" formatting element.

2006-02-07  Frank Ch. Eigler  <fche@elastic.org>

	* src/testsuite/buildok/syscalls.stp: Build with "-u" to build-test
	all auxiliary functions.
	* tapsets.cxx (dwarf_query::add_probe_point): Add some "-vv" output.

2006-02-07  Josh Stone  <joshua.i.stone@intel.com>

	PR 2068
	* tapsets.cxx (dwarf_query::blacklisted_p): add __switch_to
	to the blacklist for x86_64 architecture only.

2006-02-06  Will Cohen  <wcohen@redhat.com>

	* tapset/syscall2.stp: Correct opening comment typo.

2006-02-06  Will Cohen  <wcohen@redhat.com>

	* tapset/syscall2.stp: Correct closing comment typos.

2006-02-01  Frank Ch. Eigler  <fche@elastic.org>

	* testsuite/semko/one.stp: Make sure test case stays broken.

2006-02-01  Martin Hunt  <hunt@redhat.com>

	* stapfuncs.5.in: Document is_return(), returnval() and
	probefunc().
	* testsuite/buildok/syscall.stp: Basic syscall test.

2006-02-01  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac, systemtap.spec.in: Version 0.5.4.
	* configure: Regenerated.

2006-01-31  Josh Stone  <joshua.i.stone@intel.com>

	PR 2252
	* translate.cxx (translate_pass): Fix legacy definition of
	read_trylock.

2006-01-30  Frank Ch. Eigler  <fche@elastic.org>

	* main.cxx (main): Also print elapsed real time for each pass.

2006-01-27  Frank Ch. Eigler  <fche@elastic.org>

	* main.cxx: Make "-v" (verbose) flag a counter.
	* stap.1.in: Document this.
	* session.h: Corresponding changes.
	* {elaborate,buildrun,tapsets,translate}.cxx: Update all uses of
	verbose flag to compare it to sensible level for value of message.

2006-01-27  Frank Ch. Eigler  <fche@elastic.org>

	* main.cxx (main): In verbose mode, print user+sys times after
	each pass.
	* buildrun.cxx (compile_pass): Move success message back to main().

2006-01-26  Frank Ch. Eigler  <fche@elastic.org>

	PR 2060: lock elevation, mop-up
	* staptree.cxx (functioncall_traversing_visitor): Store a
	current_function pointer during traversal.
	(visit_embeddedcode): Use it to handle $target-synthesized functions.
	(varuse_collecting_visitor::visit_assignment): Correct l-lr typo.
	(visit_foreach_loop): Note added write on sorted foreach.
	(visit_delete_statement): Note as read+write.
	* staptree.h: Corresponding changes.
	* elaborate.cxx (dead_assignment_remover::visit_expr_statement):
	Correct stmt token after possible expression rewriting.
	* tapsets.cxx (visit_target_symbol): Create naming convention
	to recognize $target-synthesized functions.
	* translate.cxx (emit_locks, emit_unlocks): New functions to
	emit lock/unlock sequences at the outermost level of a probe.
	(emit_probe): Call them.
	(varlock_*): #if-0 out the lock code generation.  Later, these
	classes should be removed.
	(translate_pass): Emit read_trylock() kludge macro for old kernels.

2006-01-25  Frank Ch. Eigler  <fche@elastic.org>

	PR 2205, patch from <hiramatu@sdl.hitachi.co.jp>:
	* parse.cxx (scan): Correct EOF detection for %{ %} case.

2006-01-24  Frank Ch. Eigler  <fche@elastic.org>

	PR 2060 etc.
	* tapsets.cxx (visit_target_symbol): Tolerate failed resolution by
	letting target_symbol instance pass through to optimizer and
	type checker.
	* elaborate.cxx (semantic_pass_optimize): New family of functions and
	associated visitor classes.
	(visit_for_loop): Tolerate absent init/incr clauses.
	(semantic_pass): Invoke unless unoptimized (-u) option given.
	* main.cxx, session.h: Add support for flag.
	* staptree.cxx (visit_for_loop): Tolerate absent init/incr clauses.
	(traversing_visitor::visit_arrayindex): Visit the index expressions.
	(functioncall_traversing_visitor): New class.
	(varuse_tracking_visitor): New class.
	* staptree.h: Corresponding changes.
	* parse.cxx (parse_for_loop): Represent absent init/incr expressions
	with null statement pointer instead of optimized-out dummy numbers.
	* stap.1.in: Document optimization.
	* testsuite/{semko,transko}/*.stp: Added "-u" or other code to many
	tests to check bad code without optimizer elision.
	* testsuite/semok/optimize.stp: New test.

	* elaborate.cxx (unresolved, invalid, mismatch): Standardize error
	message wording.
	* stapfuncs.5.in: Tweak print/printf docs.
	* tapset/logging.stp: Remove redundant "print" auxiliary function,
	since it's a translator built-in.
	* testsuite/transok/five.stp: Extend test.
	* translate.cxx (emit_symbol_data): Put symbol table into a separate
	temporary header file, to make "-p3" output easier on the eyes.
	* buildrun.cxx (compile_pass): Eliminate test-mode support throughout.
	* main.cxx, session.h, translate.cxx: Ditto.
	* main.cxx (main): For last-pass=2 runs, print post-optimization ASTs.

2006-01-18  Josh Stone  <joshua.i.stone@intel.com>

	* tapsets.cxx (profile_derived_probe::emit_probe_entries): Setup
	c->regs properly in light of the emit_probe_prologue change.

2006-01-18  Josh Stone  <joshua.i.stone@intel.com>

	* translate.cxx (c_unparser::visit_foreach_loop): improved the error
	message when _stp_pmap_agg fails.

2006-01-18  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (c_unparser_assignment::visit_arrayindex):
	Eliminate dummy assignments for "<<<" code.

2006-01-17  Josh Stone  <joshua.i.stone@intel.com>

	PR 2156
	* testsuite/buildok/pmap_foreach.stp: Add test with sorting

2006-01-17  Josh Stone  <joshua.i.stone@intel.com>

	PR 2156
	* translate.cxx (c_unparser::visit_foreach_loop): Check the return
	value of _stp_pmap_agg() for NULL.

2006-01-17  Frank Ch. Eigler  <fche@elastic.org>

	* systemtap.spec.in: Remove explicit kernel-devel dependency,
	since some old kernel rpm builds don't virtual-provide it for
	e.g. smp, hugemem.

2006-01-17  Frank Ch. Eigler  <fche@elastic.org>

	PR 2142
	* translate.cxx (EXTRACTORS_PERMISSIVE): New experimental policy
	parameter.
	(c_unparser::visit_arrayindex, visit_print_format, visit_stat_op):
	Tolerate absent index (= NULL runtime return) in pmap.
	(*): Make semantic_error messages consistently lower case.
	* testsuite/buildok/iterate_histogram_buckets.stp: Note some missing
	functionality.

2006-01-17  Josh Stone  <joshua.i.stone@intel.com>

	* stap.1.in: Document the 'delete' operator.

2006-01-16  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in (elfutils_version): Require 0.119 now.
	* configure.ac, systemtap.spec.in: Version 0.5.3.
	* configure: Regenerated.

2006-01-16  Josh Stone  <joshua.i.stone@intel.com>

	PR 2140
	* translate.cxx (mapvar::del): Add ability to delete an indexed stat
	from (p)maps.
	(delete_statement_operand_visitor::visit_symbol): Add ability to
	delete entire pmaps and scalars.
	(delete_statement_operand_tmp_visitor): Add a special tmpvar visitor
	to parallel delete_statement_operand_visitor.
	(c_tmpcounter::visit_delete_statement): Invoke the new visitor.
	* testsuite/buildok/delete.stp: Also test scalar deletes.
	* vim/syntax/stap.vim: Recognize 'delete' operator.

2006-01-15  Frank Ch. Eigler  <fche@elastic.org>

	PR 2148
	* translate.cxx (MAXERRORS): Actually the max should be 0, so first
	error aborts session.

2006-01-13  Frank Ch. Eigler  <fche@elastic.org>

	* main.cxx (main): Suppress "Try again with -v" message if already
	verbose.

2006-01-13  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (c_unparser:getmap): Correct exception throwing typo.

2006-01-12  Josh Stone  <joshua.i.stone@intel.com>

	PR 2056
	* translate.cxx (c_unparser::aggregation_locks): Keeps track of
	foreach's locks on pmaps to avoid extra aggregation.
	(c_unparser::visit_foreach_loop): Set aggregation_locks appropriately.
	(c_unparser::load_aggregate, mapvar::call_prefix, mapvar::get):
	Use a new parameter to indicate that we should read from the
	already-aggregated map rather than the full pmap..
	(c_unparser::visit_arrayindex c_unparser::visit_print_format,
	c_unparser::visit_stat_op): Use aggregation_locks to avoid taking a
	lock and aggregating the pmap.
	(c_unparser::emit_map_type_instantiations): To read from a pmap's
	aggregated map, we need to include map-gen.c for the _stp_map_*
	functions.
	(c_unparser::obtained_locks, varlock::varlock, varlock::~varlock):
	Add simple static checking to detect incompatible nested locks during
	translation, and flag it as an error.

2006-01-11  Josh Stone  <joshua.i.stone@intel.com>

	PR 2140
	* testsuite/buildok/delete.stp: Test correct compilation of the
	'delete' operator for all "legal" variations.

2006-01-11  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (MAXERRORS): Oops, set back to intended default of 1.

2006-01-10  Frank Ch. Eigler  <fche@redhat.com>

	PR 1972.
	* tapsets.cxx (var_expanding_copy_visitor::visit_target_symbol):
	Produce error message for $var access within .return probes.
	* testsuite/semko/thirtyfour.stp: New test.

2006-01-10  Frank Ch. Eigler  <fche@redhat.com>

	PR 2060.
	* buildrun.cxx (compile_pass): Add "V=1" to kbuild if verbose.
	* translate.cxx (translator_output): For output-file constructor,
	set an explicit output buffer.
	(emit_module_init, emit_module_exit): Reorganize output, to spit
	each individual probe registration/deregistration blurb into a
	separate function.
	* translate.h: Corresponding changes; set default buffer size to 8K.
	* translate.cxx, tapsets.cxx: Replace "endl" by buffer-friendly "\n"
	throughout code generation routines.

2006-01-09  Frank Ch. Eigler  <fche@redhat.com>

	* HACKING: Extend guidelines for tapset testing.

2006-01-06  Will Cohen  <wcohen@redhat.com>

	* Makefile.am (gcov,lcov): Don't remove .gcno .gcda files.
	* Makefile.am (gcov): Fix to report data when tests fail.
	* Makefile.am (lcov): New rule to generate html coverage data.
	* Makefile.in: Regenerated.

2006-01-05  Josh Stone  <joshua.i.stone@intel.com>

	PR 2056
	* translate.cxx (var::~var, var::hist, var::buckets): make these
	methods virtual, so we can use polymorphism.
	(mapvar::hist, mapvar::buckets):  Override the corresponding var
	methods to handle pmaps correctly.
	(c_unparser::visit_arrayindex, c_unparser::visit_print_format): Make
	use of the new polymorphic behavior of var & mapvar when dealing with
	histogram data.
	* testsuite/buildok/pmap_foreach.stp: Add tests to check histogram
	accesses with for/foreach.

2006-01-04  Frank Ch. Eigler  <fche@elastic.org>

	PR 2057.
	* translate.cxx (c_unparser_assignment::visit_arrayindex): Don't take
	write lock around pmap accumulation.

2006-01-04  Will Cohen  <wcohen@redhat.com>

	* testsuite/buildok/printf.stp: Improve test coverage.

2006-01-03  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (emit_deregistration): Fix bad thinko on loop nesting.

2006-01-03  Frank Ch. Eigler  <fche@redhat.com>

	PR 1144, 1379
	* tapsets.cxx (emit_probe_prologue, _epilogue): New routines.
	Call from existing derived_probe spots.  Implement soft errors in
	epilogue code.  Implement reentrancy detection in prologue code.
	(dwarf_derived_probe::emit_deregistration): Add kprobes layer
	"nmissed" to skipped_count.
	* translate.cxx (varlock): Use nsleep(TRYLOCKDELAY) in lock
	contention loop.
	(emit_module_exit): Report number of soft errors and skipped probes.
	(emit_function, _probe): Add __restrict__ marker to context pointer.
	(translate_pass): Define new MAXTRYLOCK, TRYLOCKDELAY, MAXERRORS,
	MAXSKIPPED parameters.
	* tapset/logging.stp (error): Don't stp_error, just set context state.
	* stap.1.in, stapfuncs.5.in: Document soft errors.
	* elaborate.h: Corresponding changes.

2005-12-23  Kevin Stafford  <krstaffo@us.ibm.com>

	* tapset/2.6.9-20.ELsmp/syscalls.stp: added kernel
	version tapset
	* tapset/2.6.9-20.ELsmp/i686/syscalls.stp: added kernel
	version arch specific tapset
	* tapset/doc/discrepancies.txt: log of kernel version
	discrepancies.

2005-12-22  Roland McGrath  <roland@redhat.com>

	* configure.ac: Pass LDFLAGS to elfutils configure to force DT_RUNPATH.
	* configure: Regeneraed.

2005-12-21  Josh Stone  <joshua.i.stone@intel.com>

	PR 2056
	* translate.cxx (itervar::next): emit different code for pmaps

2005-12-21  Frank Ch. Eigler  <fche@elastic.org>

	* loc2c.h: Add __attribute__ defeating code for g++ 3.3 compatibility.

2005-12-20  Josh Stone  <joshua.i.stone@intel.com>

	* vim/filetype.vim: defines *.stp files as SystemTap scripts
	* vim/ftplugin/stap.vim: sets the comment styles
	* vim/indent/stap.vim: enables simple auto-indenting
	* vim/syntax/stap.vim: defines syntax highlighting

2005-12-19  Roland McGrath  <roland@redhat.com>

	* configure.ac, systemtap.spec.in: Version 0.5.2.
	* configure: Regenerated.

2005-12-17  Roland McGrath  <roland@redhat.com>

	* staptree.h: #include <cassert> here.

2005-12-14  Kevin Stafford  <krstaffo@us.ibm.com>

	* tapset/2.6.14/syscalls.stp: Added 2.6.14 syscalls to tapset.
	* 2.tapset/6.14/i686/syscalls.stp: Added i386 arch specific syscalls
	to tapset for kernel 2.6.14.
	* tapset/2.6.9-24.ELsmp/syscalls.stp: Added 2.6.9-24.ELsmp syscalls.
	* tapset/2.6.9-24.ELsmp/x86_64/syscalls.stp: Added x86_64 arch
	specific syscalls to tapset for kernel 2.6.9-24.ELsmp.
	* tapset/system_calls.stp: File removed.

2005-12-14  Martin Hunt  <hunt@redhat.com>

	* tapset/system_calls.stp (epoll.ctl): Temporarily remove
	references to $op and $event because gcc 4.0.2 can't
	find them.
	(epoll.wait): Ditto for $maxevents.

2005-12-13  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (var_expanding_copy_visitor::visit_target):
	Transcribe token pointer to synthesized functiondecl.

2005-12-12  Josh Stone  <joshua.i.stone@intel.com>

	* tapset/context.stp
	(execname,pid,tid,ppid,pexecname,gid,egid,uid,euid): Removed
	in_interrupt checks and other pointer checks.  We now operate on
	the assumption that "current" and its related data are always
	valid.
	* tapsets.cxx (profile_derived_probe::*,profile_builder::build):
	Do kernel version checks at translation time, using the same
	internal mechanisms as the preprocessor - a la %( kernel_v <
	"2.6.10" %? ... %: ... %)

2005-12-12  Kevin Stafford  <krstaffo@us.ibm.com>

	* main.cxx (main): Added arch directory to the existing
	kernel-version-sensitive search path.

2005-12-12  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx (translate_pass): Emit #include <linux/profile.h>.

2005-12-12  Will Cohen  <wcohen@redhat.com>

	* tapset/logging.stp (function_exit): Make sure systemtap probes
	stop collection additional data.

2005-12-12  Frank Ch. Eigler  <fche@redhat.com>

	Fix parse tree pretty-printer.
	* staptree.h (print_format): Add raw_components field.
	* parse.cxx (parse_symbol): Set it.
	* staptree.cxx (lex_cast_qstring): Copy it here too.
	(binary_expression::print): Add a space around operator, due to
	lexical ambiguity (expr % paren-expr) vs %( preprocessor op.
	(array_in:: foreach_loop:: arrayindex::print): Print base as indexable.
	(print_format::string_to_components): Use parse_error, not semantic.
	(print_format::print): Properly quote formatting string.  Print
	histogram argument.
	* translate.cxx (visit_print_format): Properly quote formatting string.
	(varlock): Reword lock timeout error message.
	* testsuite/buildok/printf.stp: Add some quoting troublemakers.
	* testsuite/parseok/unparser.stp: New file.

2005-12-11  Roland McGrath  <roland@redhat.com>

	* configure.ac: Bump version to 0.5.1 for test builds.
	* systemtap.spec.in: Remove ExclusiveArch.
	* configure: Regenerated.

	PR 1916
	* configure.ac: Grok --with-elfutils.
	* Makefile.am [BUILD_ELFUTILS] (install-elfutils, stamp-elfutils):
	New targets.
	[BUILD_ELFUTILS] (stap_LDFLAGS, stap_LDFLAGS): Add flags
	to point at local elfutils build.
	[BUILD_ELFUTILS] (BUILT_SOURCES): Add stamp-elfutils.
	[BUILD_ELFUTILS] (stap_DEPENDENCIES): New variable.
	[BUILD_ELFUTILS] (lib-elfutils/libdw.so): New target.
	[BUILD_ELFUTILS] (install-exec-local): Depend on install-elfutils.
	(loc2c_test_LDADD): Set this to $(stap_LDADD).
	(loc2c_test_CPPFLAGS, loc2c_test_LDFLAGS): New variables.
	* Makefile.in: Regenerated.
	* compile: New file from automakeland.
	* systemtap.spec.in (elfutils_version): Require 0.118 or later.
	[bundled_elfutils]: Remove old hacks for building elfutils, and rely
	on configure --with-elfutils instead.

	* Makefile.am (pkglibexecdir): New variable.
	(AM_CPPFLAGS): Use it.
	(pkglibexec_PROGRAMS): Set this instead of noinst_PROGRAMS with stpd.
	(pkglibexec_SCRIPTS, CLEANFILES): New variables.
	(install-exec-local): Target removed.
	* runtest.sh: Set LD_LIBRARY_PATH when lib-elfutils is in use.

	* loc2c-test.c (get_location): Fix function name in error message.

2005-12-09  Graydon Hoare  <graydon@redhat.com>

	* elaborate.cxx (alias_expansion_builder::build): Fix comment typo.
	* tapsets.cxx (symbol_cache): New class.
	(dwflpp::cache): Add cache.
	(dwflpp::pattern_limited_cus): New member.
	(dwflpp::pattern_limited_funcs): New member.
	(dwflpp::limit_search_to_function_pattern): New method.
	(dwflpp::iterate_over_cus): Modify to use cached, limited sets.
	(dwflpp::iterate_over_functions): Likewise.
	(dwarf_builder::user_dw): New member.
	(dwarf_builder::kern_dw): New member.
	(dwarf_builder::~dwarf_builder): Add dtor.
	(query_module): Call dwflpp::limit_search_to_function_pattern.
	(dwarf_builder::build): Initialize persistent dwflpp members on demand.

2005-12-08  Graydon Hoare  <graydon@redhat.com>

	* translate.cxx (delete_statement_operand_visitor::visit_arrayindex):
	Prohibit deleting histogram buckets.
	(c_tmpcounter::visit_array_in): Direct to visit_arrayindex.
	(c_unparser::visit_array_in): Likewise.

	* testsuite/buildok/histogram_operator_in.stp: New test.

2005-12-08  Frank Ch. Eigler  <fche@elastic.org>

	PR 1937
	* buildrun.cxx (run_pass): Pass new "-d PID" option to stpd.
	Set SIGHUP to SIG_IGN too.

2005-12-07  Graydon Hoare  <graydon@redhat.com>

	* staptree.cxx (traversing_visitor::visit_foreach_loop): Visit
	the base indexable of the foreach loop.

	* translate.cxx (c_tmpcounter::visit_foreach_loop): Implement
	histogram bucket iteration arm.
	(c_unparser::visit_foreach_loop): Likewise.
	(c_tmpcounter::visit_arrayindex): Fix typo.

	* testsuite/buildok/iterate_histogram_buckets.stp: New test.

2005-12-07  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (mapvar::fini): Use _stp_pmap_del() on pmaps.
	(emit_global): For pmaps, use "PMAP" instead of "MAP".

2005-12-06  Frank Ch. Eigler  <fche@elastic.org>

	PR 1934.
	* tapsets.cxx (resolve_prologue_endings2): Add new heuristic for
	tail-call optimized functions.
	(query_func_info): Make somewhat less verbose.

2005-12-06  Graydon Hoare  <graydon@redhat.com>

	* translate.cxx (visit_print_format): Explicitly Cast int64_t
	(pe_long) args to (long long) in generated code, for portability.

2005-12-05  Frank Ch. Eigler  <fche@elastic.org>

	* *.cxx: Add <cassert> #include as needed.

2005-12-02  Graydon Hoare  <graydon@redhat.com>

	* elaborate.cxx (mutated_var_collector): Forward
	traversal portion of calls to base class.
	(mutated_var_collector::visit_arrayindex): Resolve
	arrayindex-into-histogram expression as pe_long.
	(typeresolution_info::visit_print_format): Traverse
	into histogram if present.

	* parse.cxx (parse_symbol): Handle parse ambiguity surrounding
	print(@hist_op(...)[...]).

	* staptree.cxx (traversing_visitor::visit_arrayindex): Visit
	base member of arrayindex.

	* translate.cxx (c_unparser::histogram_index_check): New method.
	(var::hist): Fix bug.
	(var::buckets): New method.
	(stmt_expr::stmt_expr): Print with newline.
	(c_unparser::load_map_indices): Handle indexing-histogram case.
	(c_tmpcounter::visit_arrayindex): Likewise.
	(c_unparser::visit_arrayindex): Likewise.
	(c_tmpcounter_assignment::visit_arrayindex): Throw error when
	user attempts to write to histogram bucket.
	(c_unparser_assignment::visit_arrayindex): Likewise.

	* testsuite/buildok/print_histogram_entry.stp: New test.

2005-12-02  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac: Bump version number.
	* stap.1.in: Document some of the new print/stats stuff.
	* configure: Regenerated.
	* systemtap.spec.in: Enable ia64 and ppc builds.

2005-12-01  Frank Ch. Eigler  <fche@elastic.org>

	PR 1944 improved hack.
	* translator.cxx (c_tmpcounter::visit_block): New routine, allows
	overlay of sequential statements' temporaries within context.

2005-12-01  Frank Ch. Eigler  <fche@redhat.com>

	PR 1944 quick hack.
	* translator.cxx (translate_pass): Reduce default MAXNESTING to 10.
	(emit_module_init): Add a paranoid check against oversize contexts.
	* stap.1.in: Document MAXNESTING change.

2005-11-30  Frank Ch. Eigler  <fche@redhat.com>

	PR 1276
	From Josh Stone <joshua.i.stone@intel.com>:
	* tapsets.cxx (profile_derived_probe, profile_builder,
	register_standard_tapsets): Support timer.profile variety.
	* stapprobes.5.in: Document it.
	* testsuite/builok/fourteen.stp: Test its buildability.

2005-11-28  Graydon Hoare  <graydon@redhat.com>

	* translate.cxx (var::assert_hist_compatible): New method.
	(var::hist): New method.
	(c_unparser::load_aggregate): New method.
	(hist_op_downcaster): Remove, it was a mistake.
	(expression_is_hist_op): Likewise.
	(c_tmpcounter::visit_print_format): Implement print(@hist(...)).
	(c_unparser::visit_print_format): Likewise.

	* staptree.h (struct print_format): Add optional hist_op* member.
	* staptree.cxx (traversing_visitor::visit_functioncall): Visit
	hist_op if present in print_format.
	(deep_copy_visitor::visit_print_format): Likewise.

	* parse.cxx (parse_symbol): Special case to consume print(@hist(...)).

	* elaborate.cxx (typeresolution_info::visit_arrayindex): Fix type inference bug.
	(typeresolution_info::visit_foreach_loop): Likewise.

	* testsuite/buildok/print_histograms.stp: New test.

2005-11-28  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx (c_tmpcounter_assignment::visit_symbol): Don't
	emit unused temporary into context.  Saves mucho space with strings.

2005-11-27  Roland McGrath  <roland@redhat.com>

	* loc2c.c (location_from_address): Diagnose null FB_ATTR specially.

	* loc2c.c (location_from_address): Fix function name in error message.

2005-11-27  Frank Ch. Eigler  <fche@elastic.org>

	* loc2c.c (location_from_address): Tolerate errors with NULL *input.

2005-11-26  Roland McGrath  <roland@redhat.com>

	PR 1868.
	* loc2c.c (struct location): Move frame_base member out of the union.
	(alloc_location): Initialize it.
	(new_synthetic_loc, translate, location_from_address): Update uses.
	(emit_loc_value): Don't handle frame_base here.
	(c_emit_location): Do it here instead.
	(translate): Track USED_DEREF separately for each piece.
	Use a temporary struct when allocating a new piece, letting
	a pending loc_address piece finish up first.

	* loc2c-test.c (main): Free SCOPES at end.
	(handle_variable): Free POOL at end.

	* loc2c.c (translate): Initialize LOC->address.used_deref at start.

2005-11-25  Frank Ch. Eigler  <fche@elastic.org>

	PR 1336.
	* tapsets.cxx (translate_final_fetch_or_store): Remove apparently
	unnecessary check.
	* testsuite/transok/ten.stp: New test for void* integerification.

2005-11-24  Frank Ch. Eigler  <fche@redhat.com>

	PR 1903
	* parse.cxx (eval_pp_conditional): Support %( arch == "i686" %) form.
	* stap.1.in: Document it.
	* testsuite/parseok/fourteen.stp: Test it.
	* session.h (architecture): New field.
	* main.cxx (main): Initialize it.

2005-11-24  Frank Ch. Eigler  <fche@redhat.com>

	PR 1917
	* translate.cxx (emit_common_header, emit_module_init,
	emit_module_exit): Switch context array to per-cpu kmalloc variant.
	* tapsets (*::emit_probe_entires): Use per_cpu_ptr() for my context.

2005-11-23  Graydon Hoare  <graydon@redhat.com>

	* elaborate.h (get_symbol_within_expression): Make visible.
	* elaborate.cxx (get_symbol_within_expression): Make non-static.
	(stat_decl_collector): New struct.
	(semantic_pass_stats): New semantic pass.
	(semantic_pass): Call it.
	(semantic_pass_symbols): Remove collection of statistic_decls from files.
	(visit_stat_op): Only fail if inferred type is not pe_long.

	* parse.cxx (parser::parse): Don't pass per-file statistic_decl
	into parse_global.
	(parser::parse_global): Don't parse global statistic_decls,
	they're obsolete.
	* parse.hh (parser::parse_global): Adjust signature to match.

	* session.h (statistic_decl::operator==): New method.

	* staptree.h (print_format::is_empty): New method.
	(stapfile::stat_decls): Remove field.
	* staptree.cxx (string_to_components): Fix bugs in format-string
	parser.

	* translate.cxx (var): Make private fields protected.
	(var::init): Support HIST_NONE stats.
	(aggvar): New struct.
	(mapvar::is_parallel): New method.
	(mapvar::call_prefix): Use it.
	(mapvar::calculate_aggregate): New method.
	(mapvar::fetch_existing_aggregate): New method.
	(mapvar::get): Support pe_stats.
	(mapvar::init): Use is_parallel(), and support HIST_NONE.
	(itervar::itervar): Only fault on pe_unknown.
	(itervar::start): Use mapvar::is_parallel and
	mapvar::fetch_existing_aggregate.
	(emit_map_type_instantiations): Include alloc.c before pmap-gen.c.
	Include pmap-gen.c for pe_stats maps.
	(c_unparser::gensym_aggregate): New method.
	(c_unparser::visit_foreach_loop): Handle mapvar::is_parallel case.
	(arrayindex_downcaster): New struct.
	(expression_is_arrayindex): New function.
	(c_tmpcounter::visit_stat_op): New method.
	(c_unparser::visit_stat_op): Implement.
	(c_unparser::visit_hist_op): Add commentary, still not implemented.

	* testsuite/buildok/stat_{insert,extract}.stp: New tests.
	* testsuite/semok/ten.stp: Correct for changes to global declarations.
	* testsuite/semko/*.stp: Likewise.

2005-11-21  Roland McGrath  <roland@redhat.com>

	* loc2c.c (c_translate_location): Take Dwarf_Op vector as argument
	directly, not Dwarf_Attribute.
	* loc2c.h: Update decl.
	* loc2c-test.c (get_location): New function.
	(handle_variable): Use it.
	* tapsets.cxx (dwflpp::translate_location): New method.
	(dwflpp::translate_components, dwflpp::literal_stmt_for_local): Use it.

2005-11-21  Frank Ch. Eigler  <fche@elastic.org>

	PR 1276
	From Josh Stone <joshua.i.stone@intel.com>:
	* tapsets.cxx (timer_derived_probe, timer_builder,
	register_standard_tapsets): Support timer.ms() variety.
	* stapprobes.5.in: Document it.
	* testsuite/builok/fourteen.stp: Test its buildability.

2005-11-18  Martin Hunt  <hunt@redhat.com>

	PR 1837
	* testsuite/buildko/one.stp: Replace printk.
	* testsuite/buildok/one.stp: Ditto.
	* testsuite/buildok/two.stp: Ditto.
	* testsuite/semko/fifteen.stp: Ditto.
	* testsuite/semko/fourteen.stp: Ditto.
	* testsuite/semko/thirteen.stp: Ditto.
	* testsuite/transok/eight.stp: Ditto.
	* testsuite/transok/seven.stp: Ditto.
	* testsuite/transok/six.stp: Ditto.

	* tapsets.cxx (*::emit_probe_entries): Replace printk() calls
	with _stp_warn().

	* stap.1.in: Replace printk with printf in example.

	* stapfuncs.5.in: Remove docs for printk and add for
	print and printf.

	* tapset/logging.stp (printk): Deleted.

2005-11-13  Graydon Hoare  <graydon@redhat.com>

	* staptree.h (struct indexable): New struct.
	(classify_indexable): New function.
	(classify_const_indexable): New function.
	(struct symbol): Implement indexable.
	(struct arrayindex): Take indexable as base.
	(struct foreach_loop): Take indexable as base.
	(struct print_format): New struct.
	(enum stat_component_type): New enum.
	(struct stat_op): New struct.
	(enum historgram_type): New enum.
	(struct hist_op): New struct.
	(struct visitor)
	(struct traversing_visitor)
	(struct throwing_visitor)
	(struct deep_copy_visitor): Add new visitor methods.
	(require): Specialize for indexable*.

	* staptree.cxx (print_format::*)
	(stat_op::*)
	(hist_op::*)
	(indexable::*)
	(traversing_visitor::*)
	(throwing_visitor::*)
	(deep_copy_visitor::*)
	(classify_indexable)
	(classify_const_indexable): Implement
	(deep_copy_visitor::*): Update to use indexables.

	* parse.h (parser::parse_indexable): New method.
	(parser::parse_hist_op_or_bare_name): New method.

	* parse.cxx (lexer::scan): Accept @ in identifiers.
	(parser::parse_array_in)
	(parser::parse_foreach_loop): Call parse_indexable.
	(parser::parse_hist_op_or_bare_name): Implement.
	(parser::parse_indexable): Implement.
	(parser::parse_symbol): Accept printf, stat_ops, hist_ops.

	* elaborate.h (struct typeresolution_info): Add methods for
	visiting print_format, stat_op, hist_op.

	* elaborate.cxx (symbol_fetcher): New class.
	(get_symbol_within_expression): New function.
	(get_symbol_within_indexable): New function.
	(mutated_var_collector): Replace mutated_map_collector.
	(no_var_mutation_during_iteration_check): Replace
	no_map_mutation_during_iteration_check.
	(semantic_pass_vars): Replace semantic_pass_maps.
	(semantic_pass): Update call accordingly.
	(symresolution_info::*) Add new visitors, teach about indexables
	(typeresolution_info::*) Likewise.

	* translate.cxx
	(c_unparser::getiter): Take symbol, not foreach_loop.
	(c_unparser::*) Add new visitors, teach about indexables.
	(c_tmpcounter::*)
	(delete_statement_operand_visitor::visit_arrayindex)
	(c_tmpcounter_assignment::*)
	(c_unparser_assignment::*): Likewise.
	(hist_op_downcaster): New struct.
	(expression_is_hist_op): New function.

	* testsuite/buildok/printf.stp: New test for print_format.

2005-11-10  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (c_unparser::visit_array_in, visit_arrayindex):
	Finish adapting to PR 1275 by switching back to read locks.

2005-11-09  Martin Hunt  <hunt@redhat.com>

	* translate.cxx: New API uses HIST_LOG and HIST_LINEAR
	instead of HSTAT_LOG and HSTAT_LINEAR.

2005-11-09  Frank Ch. Eigler  <fche@elastic.org>

	Reported by Guang Lei Li <liguangl@cn.ibm.com>:
	* tapset/context.stp (pid,ppid,tid): Correctly pick tgid vs pid.
	* testsuite/buildok/context_test.stp: Print out tid() too.

2005-11-08  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (blacklisted_p): Tolerate NULL filename parameter.
	* src/testsuite/semok/twenty.stp: New test to enumerate everything
	dwarfly probeable.

2005-11-08  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx (c_unparser::visit_foreach_loop): With PR 1275
	done, add back read lock around foreach loop.  Add a write lock
	around preceding sort operation.  Leave a race condition window. :-(

2005-11-08  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx (mapvar::exists): Correct some more.

2005-11-08  Frank Ch. Eigler  <fche@redhat.com>

	Patch from "Mao, Bibo" <bibo.mao@intel.com>
	* translate.cxx (mapvar::exists): Correct 64-bit type mismatch.

2005-11-08  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (blacklisted_p): Add blacklist for some .return
	probes to kludge around bug #1345.
	* tapset/system_calls.stp: Add some %( %? %) conditionals to
	get closer to using tapset on 2.6.9 kernel.

2005-11-07  Frank Ch. Eigler  <fche@redhat.com>

	PR 1828.
	* tapsets.cxx (blacklisted_p): New function.  Add a few blacklist
	entries.
	* testsuite/semko/thirtythree.stp: New test.

2005-11-07  Frank Ch. Eigler  <fche@redhat.com>

	* testsuite/buildok/twentytwo.stp: Add another test for PR 1271.

2005-11-04  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (dwarf_derived_probe::emit_registrations): Add
	possible kprobe address prechecking logic.  Set kretprobes
	maxactive to zero.
	* translate.cxx (emit_module_init): Set a more helpful default
	probe_point value for use in registration errors.  Exit properly
	after registration failure of probe #0.

2005-11-04  Roland McGrath  <roland@redhat.com>

	* tapsets.cxx (add_probe_point): Use dwfl_module_relocation_info to
	get symbol name when dwfl_module_relocations has the info.

2005-11-03  Roland McGrath  <roland@redhat.com>

	* tapsets.cxx (add_probe_point): Use explicit test with assignment in
	while condition.

2005-11-03  Frank Ch. Eigler  <fche@elastic.org>

	PR 1329.
	* tapsets.cxx (dwarf_query::add_probe_point): Look up section name
	containing given address.  Skip request if it came from .init.*.
	* testsuite/semko/thirtytwo.stp: New test.

2005-11-02  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (EXTRA_DIST): Add session.h.
	* Makefile.in: Regenerated.

2005-11-01  Frank Ch. Eigler  <fche@elastic.org>

	Sound advice from <drepper@redhat.com>:
	* configure.ac: Undo last change.
	* configure.ac: Unregenerated.
	* parse.cxx: Use glibc strverscmp function instead of rpmlib.
	* stap.1.in: Update correspondingly.

2005-11-01  Graydon Hoare  <graydon@redhat.com>

	* translate.cxx (c_unparser::collect_map_index_types)
	(c_unparser::emit_map_type_instantiations)
	(c_unparser::visit_arrayindex)
	(c_unparser::visit_array_in)
	(delete_statement_operand_visitor::visit_arrayindex)
	(c_unparser_assignment::visit_arrayindex)
	(mapvar::*): Update to new runtime map API.

2005-11-01  Frank Ch. Eigler  <fche@elastic.org>

	PR 1425.
	* configure.ac: Look for rpm-devel headers and libs.
	* configure: Regenerated.
	* session.h: New file to contain systemtap_session decl.
	* staptree.h: Likewise evict statistics_decl.
	* elaborate.h: Corresponding changes.
	* main.cxx (usage): Elaborate.  Re-enable "-r RELEASE" option.
	* parse.cxx (parser): Add systemtap_session& field.  Update users.
	(scan_pp, eval_pp_conditional): New routines for preprocessing.
	(peek, next): Call it.
	(lexer::scan): Lex the preprocessor operators.
	(parser::parse): Include an extra level of exception catching
	for parse errors that occur during recovery.
	* parse.h: Corresponding changes.
	(parse_error): Allow explicit token parameter.
	* stap.1.in: Document preprocessing.
	* testsuite/parseok/fourteen.stp: New test.

2005-10-31  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in, configure.ac: Version 0.4.2 cooked.
	* configure: Regenerated.

	* configure.ac: Update libdw test to require 0.116 with dwarf_diecu.
	* configure: Regenerated.
	* systemtap.spec.in: Update elfutils requirement to 0.116.
	* loc2c.c: Dwarf_Loc -> Dwarf_Op.
	(location_from_address): dwarf_addrloclists -> dwarf_getlocation_addr.
	(c_translate_location): Likewise.
	(max_fetch_size): Remove fakeo dwarf_diecu macro.
	* tapsets.cxx (dwflpp): Dwarf_Func -> Dwarf_Die;
	dwarf_func_name -> dwarf_diename;
	dwarf_func_entrypc -> dwarf_entrypc;
	dwarf_func_file, dwarf_func_line -> dwarf_decl_file, dwarf_decl_line.

2005-10-26  Roland McGrath  <roland@redhat.com>

	* loc2c.c (max_fetch_size): Default to host pointer size,
	while still waiting for new libdw entrypoint.

2005-10-25  Roland McGrath  <roland@redhat.com>

	PR 1271 cont'd.
	* testsuite/buildok/twentytwo.stp: New file.
	* testsuite/buildok/twentythree.stp: New file.
	* loc2c.c (discontiguify): Add missing ; in output.

2005-10-20  Graydon Hoare  <graydon@redhat.com>

	PR 917 (incomplete)
	* staptree.h (struct statistic_decl): New struct.
	(stapfile::stat_decls): New member.

	* parse.h, parse.cxx
	(parser::expect_known): Fix typo.
	(parser::expect_number): New method.
	(parser::parse_global): Parse global statistic_decls.

	* elaborate.h (systemtap_session::stat_decls): New member.
	* elaborate.cxx (semantic_pass_symbols): Copy per-file stat_decls
	to session-wide.
	(typeresolution_info::visit_assignment): Detect some semantic stats
	errors in type resolution pass.

	* translate.cxx (var::sd): New private member.
	(var::var): Initialize it.
	(var::sdecl): New accessor.
	(var::init): Handle stats values.
	(mapvar::mapvar): Pass through statistic_decl to var ctor.
	(mapvar::get): Test for long explicitly.
	(mapvar::set): Likewise.
	(mapvar::init): Handle stats values.
	(c_unparser::emit_common_header): Remove typedef of stats_t,
	include stat.c when necessary.
	(mapvar::key_typename): Typo.
	(c_unparser::emit_map_type_instantiations): Thinko: value_typename not key_typename.
	(c_unparser::c_typename): Implementation typename is "Stat", not "stats_t".
	(c_unparser::c_assign): Fix bad error message.
	(c_unparser_assignment::c_assignop): Handle operator <<<.
	(c_unparser::getvar): Feed session statistic_decl into var.
	(c_unparser::getmap): Likewise.
	(c_unparser::visit_assignment): Handle operator <<<.
	(c_tmpcounter_assignment::visit_symbol): Derive type from rvalue when present.
	(c_unparser_assignment::visit_symbol)
	(c_tmpcounter_assignment::visit_arrayindex)
	(c_unparser_assignment::load_map_indices): Likewise.
	(c_unparser::visit_arrayindex): Likewise, and Prohibit statistic rvalues.
	(c_unparser_assignment::visit_arrayindex): Handle operator <<<.

	* testsuite/semko/twentyfour.stp:
	* testsuite/semko/twentyfive.stp:
	* testsuite/semko/twentysix.stp:
	* testsuite/semko/twentyseven.stp:
	* testsuite/semko/twentyeight.stp:
	* testsuite/semko/twentynine.stp:
	* testsuite/semko/thirty.stp:
	* testsuite/semko/thirtyone.stp: New tests for prohibited statistic contexts.
	* testsuite/buildok/twentytwo.stp: New test for legal statistic contexts.

2005-10-19  Tom Zanussi  <zanussi@us.ibm.com>

	PR 1194.
	* elaborate.h: Move output_file variable into systemtap_session.
	* buildrun.cxx (run_pass): Pass output file to stpd if applicable.
	* main.cxx (main): Set output_file if -o option specified.

2005-10-18  Frank Ch. Eigler  <fche@redhat.com>

	PR 1477.
	* main.cxx (main): Set PATH and LC_ALL, so
	* buildrun.cxx (compile_pass, run_pass): ... and ...
	* translate.cxx (emit_symbol_data): ... don't have to.

2005-10-18  Frank Ch. Eigler  <fche@elastic.org>

	PR 1482 cont'd.
	* translator.cxx (emit_module_init): Set aside a variable for
	detailed probe point id.
	* tapsets.cxx (emit_registrations): Use it.
	(add_probe_point): Correct synthesized probe-point typo.

2005-10-17  Martin Hunt  <hunt@redhat.com>

	PR 1482
	* tapsets.cxx (emit_registrations): On failure, don't
	forget to unregister probe 0;

2005-10-17  Frank Ch. Eigler  <fche@elastic.org>

	PR 1338.
	* parse.cx (parse_probe): Unconditionally visit parse_probe_point.
	(parse_probe_point): Accept "*" as component name.
	* stapprobes.5.in: Document this.
	* elaborate.cxx (derive_probes): Rewrite.  Make top-level function.
	(match_node::find_and_build): New function to replace
	(find_builder): Removed.
	(match_key operator <): Correct one nasty typo.
	(match_node::bind): Refuse to bind "*" component names.
	(derived_probe_builder::build): Remove recursion output param.
	(alias_expandion_builder::build): Recurse to derive_probes instead.
	* elaborate.h: Corresponding changes.
	* tapsets.cxx: Ditto.
	(query_cu): Elide prologue finding for uninteresting CUs.
	* testsuite/semok/nineteen.stp: New test.
	* testsuite/semko/twentythree.stp: New test.
	* testsuite/semko/twentyone/two.stp: Fix -p2.

2005-10-17  Graydon Hoare  <graydon@redhat.com>

	* testsuite/semko/twentyone.stp: Check function doesn't match inline.

	* testsuite/semko/twentytwo.stp: Check inline doesn't match function.

	* testsuite/buildok/six.stp: Change "function" to "inline".

	* stapprobes.5.in: Describe "inline" probes.

	* tapsets.cxx (TOK_INLINE): New token "inline".
	(dwarf_query::has_inline_str)
	(dwarf_query::has_inline_num)
	(dwarf_query::inline_str_val)
	(dwarf_query::inline_num_val): New members.
	(dwarf_query::dwarf_query): Load new members.
	(query_dwarf_inline_instance)
	(query_dwarf_func)
	(query_cu)
	(query_module)
	(dwarf_derived_probe::add_probe_point)
	(dwarf_builder::build):
	Use inline-related members where appropriate.
	(dwarf_derived_probe::register_inline_variants): New method.
	(dwarf_derived_probe::register_function_and_statement_variants):
	Call it.

2005-10-14  Roland McGrath  <roland@redhat.com>

	PR 1271.
	* loc2c.c (translate): Set LOC->byte_size in loc_noncontiguous result.
	(struct location.address): New member `declare'.
	(new_synthetic_loc, translate): Initialize it.
	(struct location.type): Add loc_fragment, loc_decl to enum.
	(c_emit_location): Emit unadorned code for loc_fragment.
	(discontiguify): New function.
	(c_translate_fetch, c_translate_store): Call it.
	(get_bitfield): New function, broken out of ....
	(emit_bitfield): ... here.  Function removed.
	(declare_noncontig_union): New function.
	(max_fetch_size): New function.
	(translate_base_fetch): New function, broken out of ...
	(c_translate_fetch): ... here.  Call it.
	Use get_bitfield here, not emit_bitfield.
	(c_translate_store): Likewise.
	(c_emit_location): Emit declarations first.

	* loc2c.c (dwarf_diename_integrate): Function removed.
	Change all callers to use dwarf_diename.

	* loc2c-test.c (handle_variable): Check for "=" before fetching DIE
	from ATTR_MEM.

2005-10-13  Roland McGrath  <roland@redhat.com>

	* loc2c.c (c_emit_location): Use final location's used_deref flag too.

	* loc2c.c (translate): Pass LOC to alloc_location, not INPUT.

	* loc2c-test.c (fail): Print a newline after the error message.

2005-10-10  Frank Ch. Eigler  <fche@elastic.org>

	* elaborate.cxx (match_node::bind): Improve error message.
	(register_library_aliases): Catch and verbosify error message.
	(semantic_pass): Provide a back-up exception catcher.

2005-10-10  Frank Ch. Eigler  <fche@elastic.org>

	PR 1456.
	* translate.cxx (c_unparser_assignment): Rename "pre" field to "post",
	add blurb to clarify polarity.
	(visit_pre/post_crement): Flip passed flag value.

2005-10-07  Frank Ch. Eigler  <fche@elastic.org>

	PR 1366.
	* staptree.h (foreach_loop): Add sort_column, sort_direction fields.
	* parse.cxx (parse_foreach_loop): Parse "+"/"-" suffix operators.
	* stap.1.in, stapex.5.in: Document them.
	* staptree.cxx (foreach_loop print, copy): Propagate them.
	* translate.cxx (visit_foreach_loop): Support them.
	* testsuite/parseok/fifteen.stp, parseko/thirteen.stp,
	buildok/twentyone.stp: Test them.

2005-10-07  Kevin Stafford  <kevinrs@us.ibm.com>

        * tapset/system_calls.stp: All 281 syscalls *prototyped*. They
	are still untested. Many of the aliases useability are contin-
 	gent upon resolution of namely: bz #1295 & bz #1382.

2005-10-06  Frank Ch. Eigler  <fche@elastic.org>

	* stap.1.in: Document -b/-s options.
	* main.cxx (usage): Clarify -b/-s blurbs.
	* translator.cxx (translate_pass): Handle bulk_mode here instead.

2005-10-06  Frank Ch. Eigler  <fche@elastic.org>

	PR 1332.
	* translate.cxx (emit_symbol_data): New function to transcribe
	a processed address->symbol lookup table, based upon /proc/kallsyms.

2005-10-05  Tom Zanussi  <zanussi@us.ibm.com>

	* buildrun.cxx (run_pass): Add bulk/buffer_size flags to flags
	passed to stpd.
	* elaborate.h (systemtap_session): Add bulk/buffer_size flags.
	* main.cxx (usage,main): Add -b (bulk), -s (buffer_size) options.
	processing.

2005-10-04  Graydon Hoare  <graydon@redhat.com>

	PR 1131.
	* tapsets.cxx
	(target_variable_flavour_calculating_visitor::visit_target_symbol)
	(var_expanding_copy_visitor::visit_target_symbol):
	Require guru mode for writing to target vars.
	* testsuite/buildok/twenty.stp: Test writing to target vars.

2005-10-01  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (get_module_dwarf): Add "required" parameter, which
	throws an exception if debuginfo is not found.
	(focus_on_module_containing_global_address): Tolerate miss.
	(query_kernel_exists): New function to test for "kernel" module in
	dwfl_getmodules() result set.
	(dwarf_builder::build): Call it if appropriate.

2005-09-30  Graydon Hoare  <graydon@redhat.com>

	PR 1131.
	* tapsets.cxx (dwflpp::find_variable_and_frame_base)
	(dwflpp::translate_components)
	(dwflpp::resolve_unqualified_inner_typedie)
	(dwflpp::translate_final_fetch_or_store): New functions.
	(dwflpp::literal_stmt_for_local): Factor a bit.
	(variable_flavour_calculating_visitor::visit_target_symbol):
	Don't fault on lvalue, just collect an extra char.
	(var_expanding_copy_visitor::target_symbol_setter_functioncalls):
	New member.
	(var_expanding_copy_visitor::visit_assignment): New method.
	(var_expanding_copy_visitor::visit_target_symbol): Permit lvalues.

2005-09-30  Frank Ch. Eigler  <fche@elastic.org>

	* tapset/system_calls.stp (*_str): Simplified boolean test logic
	throughout, fixed some typos.

2005-09-28  Frank Ch. Eigler  <fche@elastic.org>

	PR 1182.
	* main.cxx (main): Support -D macro-setting option.
	* stap.1.in: Document it and related macros.
	* buildrun.cxx (compile_pass): Emit macro definitions.
	* translate.cxx (translate_pass): Guard limit macros with #ifdef.
	Eliminate MAXCONCURRENCY macro.
	* elaborate.h (systemtap_session): Add "macros" field.
	* parse.cxx (parse_if_statement): Clear "elseblock" if needed.

2005-09-27  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (query_cu_containing_global_address): Tolerate
	way out of range addresses that result in null cudie pointers.

2005-09-27  Frank Ch. Eigler  <fche@elastic.org>

	PR 1368.
	* translate.cxx (emit_common_header): Move some MAX* definitions out ...
	(translate_pass): ... to here.  Fix probe_start API impedance mismatch.
	(emit_module_init, exit): Tolerate registration errors, such as absence
	of kretprobes support.

2005-09-27  Frank Ch. Eigler  <fche@elastic.org>

	PR 1311.
	* tapsets.cxx (target_variable_flavour_calculating_visitor::
	visit_target_symbol): Print verbose error.
	(var_expanding_copy_visitor::visit_target_symbol): Throw
	simple error.

2005-09-26  Frank Ch. Eigler  <fche@elastic.org>

	* stapfuncs.5.in: Extend errno_str verbiage.
	* tapset/errno.stp: Canonicalize script code slightly.

2005-09-26  Frank Ch. Eigler  <fche@elastic.org>

	PR 1295.
	* tapsets.cxx (resolve_prologue_endings2): Try another heuristic
	for end-of-prologue.

2005-09-22  Graydon Hoare  <graydon@redhat.com>,
	Frank Ch. Eigler  <fche@elastic.org>

	PR 1330.
	* tapsets.cxx (dwarf_derived_probe): Allow multiple probe_point
	locations per derived_probe.
	(dwarf_query): Add probe "flavour" concept, to reuse probe bodies for
	identical flavours across wildcards.
	(dwarf::emit_registrations, emit_deregistrations, emit_probe_entries):
	Reorganize.
	* staptree (probe::printsig): Put multiple locations on separate lines.

2005-09-22  Will Cohen  <wcohen@redhat.com>

	* stap.1.in: Correct sys_read alias example.

2005-09-19  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (*::emit_probe_entries): Handle busy-count correctly
	upon contention.

2005-09-14  Graydon Hoare  <graydon@redhat.com>

	PR 1260
	* tapsets.cxx (dwflpp::resolve_prologue_endings): Correct logic
	error triggered by consecutive function-beginning line records.

2005-09-14  Frank Ch. Eigler  <fche@elastic.org>

	PR 1344
	* translate.cxx: Call _stp_map_clear for "delete ARRAY" statement.

2005-09-14  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in: Version 0.4.1 cooked.
	Build runpath into elfutils libs too.

2005-09-14  Frank Ch. Eigler  <fche@elastic.org>

	PR 1257
	* Makefile.am (AM_CFLAGS): Add -fexceptions.
	* loc2c.c (c_translate_location): Invoke *fail properly.
	* Makefile.in: Regenerated.

2005-09-13  Graydon Hoare  <graydon@redhat.com>

	PR 1260
	* tapsets.cxx (func_info::func_info): Initialize fields.
	(inline_instance_info::inline_instance_info): Likewise.
	(query_inline_instance_info): Add try-catch block.
	(query_func_info): Likewise, and fault when missing prologue-end.
	(query_dwarf_func): Fault when missing entrypc.

2005-09-12  Frank Ch. Eigler  <fche@elastic.org>

	PR 1335
	* translate.cxx (c_tmpcounter::visit_functioncall): Correct
	recursion sequence.
	* testsuite/buildok/nineteen.stp: New test case.

2005-09-12  Graydon Hoare  <graydon@redhat.com>

	PR 1306
	* tapsets.cxx (dwflpp::iterate_over_srcfile_lines): Fix two
	off-by-one errors in previous change.

2005-09-12  Graydon Hoare  <graydon@redhat.com>

	PR 1306
	* tapsets.cxx (dwflpp::has_single_line_record): New function.
	(dwflpp::iterate_over_srcfile_lines): Throw when user requests
	single statement line with multiple records (and provide advice).
	(query_cu): Adjust call to match.
	(query_srcfile_line): Fix indentation.

2005-09-10  Frank Ch. Eigler  <fche@elastic.org>

	* Makefile.am, runtest.sh: Use a "testresuilt/" directory in build
	tree rather than overloading "testsuite/".
	* TODO: Removed obsoleted file.
	* Makefile.in: Regenerated.

2005-09-07  Martin Hunt  <hunt@redhat.com>

	* stap.1.in: Document current "-c" and "-x" options.

2005-09-07  Frank Ch. Eigler  <fche@elastic.org>

	* systemtap.spec.in: Remove kernel-debuginfo dependency.

2005-09-07  Frank Ch. Eigler  <fche@redhat.com>

	* main.cxx (main): Choose getpid()-based module names.
	* tapsets.cxx: Make timer.jiffies' use of task_pt_regs __i386__-only.

2005-09-07  Frank Ch. Eigler  <fche@redhat.com>

	* stap.1.in: Oops, && and || do short-circuit.

2005-09-06  Frank Ch. Eigler  <fche@elastic.org>

	* stap.1.in: Clarify absence of short-circuiting in && and ||.
	* translate.cxx (emit_function): Improve "array locals" message.
	* tapset/timestamp.stp: Add gettimeofday_us function.  Correct
	arithmetic typing in other functions.
	* stapfuncs.5.in: Document new function.

2005-09-06  Martin Hunt  <hunt@redhat.com>

	* systemtap.spec.in: Bump elfutils_version to .115.

2005-09-05  Roland McGrath  <roland@redhat.com>

	* loc2c.h: Comment fix.

2005-09-06  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac: Require elfutils 0.115+.
	* tapsets.cxx: Restore graydon's PR 1244 code.
	* testsuite/buildok/eighteen.stp: Correct typing.
	* configure: Regenerated.

2005-09-06  Martin Hunt  <hunt@redhat.com>

	* tapset/context.stp: Add function target().
	* stapfuncs.5.in (target): Document it.
	* elaborate.h (struct systemtap_session): Add cmd and target_pid to
	the struct.
	* main.cxx (usage): Add descriptions of "-c" and "-x" options.
	(main): Set s.cmd and s.target_pid.
	* buildrun.cxx (stringify): Copy this utility func here too.
	(run_pass): Add new options to set cmd and pid to the stpd
	command line.

2005-09-06  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (emit_probe_entries): Disable fault_handler for now.

2005-09-05  Frank Ch. Eigler  <fche@elastic.org>

	PR 1289
	* translate.cxx (lex_cast_qstring): Correct "cast" of object
	to string containing more than one word.
	* tapset.cxx (lex_cast_qstring): Ditto.
	(dwarf_derived_module::emit_probe_entries): Emit and use
	a generic fault_handler.

2005-09-05  Frank Ch. Eigler  <fche@elastic.org>

	PR 1172.
	* staptree.h, staptree.cxx: Make all ::print*(), operator<<
	functions take const staptree objects.
	(literal_string::print): \-prefix double-quotes.
	* translate.cxx (emit_common_header): Add context probe_point field.
	Switch to atomic_t busy flags.
	(emit_module_exit): Use atomic operations for busy flag.
	(visit_*): Use lex_cast_qstring for last_stmt strings.
	* tapsets.cxx (lex_cast_qstring): New function.
	(*::emit_probe_entries): Populate probe_point.  Use atomic operations
	for busy flag.
	* tapset/context.stp (pp): New function.
	* stapfuncs.5.in: Document it.
	* testsuite/buildok/context_test.stp: Test it.

2005-09-04  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (visit_literal_string): \-prefix double-quotes.

2005-09-04  Martin Hunt  <hunt@redhat.com>

	* testsuite/buildok/context_test.stp: New test.
	* tapset/logging.stp (log): Call _stp_printf().
	* stapfuncs.5.in: Add contextinfo funcs.
	* tapset/context.stp: Minor cleanup.

2005-09-03  Frank Ch. Eigler  <fche@elastic.org>

	PR 1187 prime
	* tapset.cxx (literal_stmt_for_local): Don't automgaically copy
	target char*'s to systemtap strings.
	* tapset/conversions.stp (user_string, kernel_string): New functions.
	* stapfuncs.5.in: Document new functions.

2005-09-03  Frank Ch. Eigler  <fche@elastic.org>

	PR 1292, by popular request.
	* parse.cxx (parse_functiondecl): Allow optional value/param type
	declarations.
	* stap.1.in: Document this.
	* tapset/*.stp: Convert most functions accordingly.
	* testsuite/parseok/twelve.stp, semok/seven.stp,
	semko/twenty.stp: Test this.

2005-09-02  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx (varlock): Use trylock only for write locks.
	(translate_pass): Remove read_trylock macro hack.
	(visit_foreach_loop): Remove protective read lock, until PR 1275.
	(visit_*): Added many more "last_stmt"-setting expressions in the
	output, to improve last_error message locality.

2005-09-02  Martin Hunt  <hunt@redhat.com>

	* tapset/logging.stp: Make log() be same as print().

2005-09-02  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx: Temporarily rolled back graydon's changes.

2005-09-02  Frank Ch. Eigler  <fche@elastic.org>

	* tapset/*.stp: Renamed several files to simplify names.

2005-09-01  Graydon Hoare  <graydon@redhat.com>

	PR systemtap/1244
	* testsuite/buildok/eighteen.stp: New test.
	* tapsets.cxx (dwflpp::literal_stmt_for_local)
	(query_statement, query_inline_instance_info)
	(query_func_info, query_srcfile_line, query_cu)
	(var_expanding_copy_visitor, visit_target_symbol)
	(dwarf_derived_probe): Fix 1244.

2005-09-01  Martin Hunt  <hunt@redhat.com>

	* tapset/builtin_logging.stp: Add print.

	* tapset/context.stp: New file. First cut at some
	context info.

2005-09-01  Martin Hunt  <hunt@redhat.com>

	* translate.cxx (emit_probe): Add a call to _stp_print_flush
	at the end of each probe.
	(translate_pass): Define STP_NUM_STRINGS to be 1 for
	a scratch string. Include current.c and stack.c. Don't
	define KALLSYMS_LOOKUP_NAME or KALLSYMS_LOOKUP. Remove
	references to next_fmt() and stp_dbug().

2005-08-31  Graydon Hoare  <graydon@redhat.com>

	PR systemtap/1258
	* tapsets.cxx (dwflpp::literal_stmt_for_local):
	Support DW_TAG_enumeration_type tag as synonymous with
	DW_TAG_base_type.
	* loc2c.c (base_byte_size): Likewise.
	* testsuite/buildok/seven.stp: Adjust to work on UP kernels.

2005-08-31  Graydon Hoare  <graydon@redhat.com>

	* tapsets.cxx (dwflpp::iterate_over_srcfile_lines): Correct segv
	reported in PR 1270.

2005-08-31  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx (visit_array_in, visit_arrayindex): Use write locks
	even for array reads, until PR 1275.
	(translate_pass): Add read_trylock -> write_trylock escalation.

2005-08-30  Roland McGrath  <roland@redhat.com>

	* Makefile.am (install-data-local): Use mkdir -p, not -mkdir.
	* Makefile.in: Regenerated.

2005-08-30  Graydon Hoare  <graydon@redhat.com>

	* tapsets.cxx (dwflpp::literal_stmt_for_local): Handle dwarf
	pointer-to-1-byte-means-char case (found in PR 1187)
	* parse.cxx (parse_symbol): Eliminate use of "." from target
	symbol parser, conflicting with string concatenation operator.
	* staptree.h (target_symbol::component_type) Eliminate
	comp_struct_pointer_member, since . and -> are considered the
	same now.
	* staptree.cxx (target_symbol::print): Likewise.
	* testsuite/buildok/seventeen.stp: Test solution on PR 1191.
	* testsuite/buildok/six.stp: Test working portion of PR 1155.
	* testsuite/semko/nineteen.stp: Unresolved portion of PR 1155.

2005-08-30  Frank Ch. Eigler  <fche@elastic.org>

	PR systemtap/1268
	* translator (varlock): Add deadlock detection code.
	(emit_common_header): Add a new MAXTRYLOCK configuration macro.

2005-08-29  Graydon Hoare  <graydon@redhat.com>

	PR translator/1265
	* tapsets.cxx
	(func_info::decl_file)
	(func_info::decl_line)
	(inline_instance_info::decl_file)
	(inline_instance_info::decl_line): New fields.
	(dwflpp::function_srcfile): Remove.
	(dwflpp::function_file): Add.
	(dwflpp::function_line): Add.
	(dwarf_derived_probe::dwarf_derived_probe): Update.
	(query_statement): Pass func, file, line through.
	(query_inline_instance_info): Likewise.
	(query_func_info): Likewise.
	(query_srcfile_line): Query statement lines if
	statement_str exists, rather than *_info.
	(query_dwarf_inline_instance): Extract file and line.
	(query_dwarf_func): Likewise.
	(query_cu): Pass empty func, file, line, for address-based
	queries.

2005-08-29  Frank Ch. Eigler  <fche@redhat.com>

	* runtest.sh: Tolerate relative $SRCDIR.

2005-08-29  Frank Ch. Eigler  <fche@redhat.com>

	* stapprobes.5.in, stapfuncs.5.in, stapex.5.in: New man pages.
	* stap.1.in: Moved some content out.
	* Makefile.am (man_MANS): Add new man pages.
	* configure.ac (AC_CONFIG_FILES): Add them.
	* systemtap.spec.in: Package them.
	* Makefile.in, configure: Regenerated.
	* buildrun.cxx (run_pass): Pass "-r" to stpd.
	* translate.cxx (emit_common_header): Wrap try/catch around
	variable decls, to improve exception particularity.
	(visit_literal_number): Emit as unsigned literal, which is
	actually a subtle correctness issue.

2005-08-28  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (visit_target): Make target variable exceptions
	more informative.
	(literal_stmt_for_local): Improve bad-type exception message.
	* translate.cxx (emit_module_init): Include probe point in comments.

2005-08-27  Roland McGrath  <roland@redhat.com>

	* loc2c-test.c (print_type): New function.
	(print_vars): Use it.

	* loc2c-test.c (paddr, print_vars): New functions.
	(main): If given no variable name argument, print out variables.

2005-08-26  Graydon Hoare  <graydon@redhat.com>

	* translate.cxx: Revert tmp initialization changes.

2005-08-26  Graydon Hoare  <graydon@redhat.com>

	* parse.cxx (scan): Preserve basic C-ish escapes.
	* translate.cxx (c_tmpcounter::declaring): New flag.
	(c_tmpcounter::declare_or_init): New helper method.
	(c_tmpcounter::visit_*): Use declare_or_init.
	(c_unparser::emit_function): Run a tmpcounter to initialize tmps.
	(c_unparser::emit_probe): Likewise.
	(c_unparser::c_strcpy): Use strlcpy.
	(c_unparser::c_strcat): Use strlcat.

2005-08-25  Roland McGrath  <roland@redhat.com>

	* Makefile.am (EXTRA_DIST): List .h files explicitly.
	Automake really does not like wildcards.
	* Makefile.in: Regenerated.

2005-08-25  Frank Ch. Eigler  <fche@redhat.com>

	* Makefile.am (docs): Removed target.
	* Makefile.in: Regenerated.

2005-08-24  Graydon Hoare  <graydon@redhat.com>

	* tapsets.cxx (dwflpp::literal_stmt_for_local): Fetch pointer types,
	array types, strings, from target.

2005-08-24  Roland McGrath  <roland@redhat.com>

	* loc2c-test.c (handle_variable): Iterate on const_type/volatile_type.

2005-08-24  Frank Ch. Eigler  <fche@elastic.org>

	* configure.ac: Require elfutils 0.114.
	* tapsets.cxx: Brought back graydon's changes.
	* configure: Regenerated.

2005-08-24  Roland McGrath  <roland@redhat.com>

	* systemtap.spec.in: Update elfutils requirement.

2005-08-24  Frank Ch. Eigler  <fche@elastic.org>

	* translate.cxx (emit_global, emit_module_init): Use 2.6.9-compatible
	rwlock initialization.

2005-08-24  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (*::emit_probe_entries): Treat NULL and "" last_errors
	both as clean early returns, not errors.
	* translate.cxx: Revamp last_error handling logic.  Remove all
	"goto out" paths from expression context.
	(visit_statement): Handle last_error exit one nesting level at a time.
	(visit_return_statement, visit_functioncall): Set/reset last_error="".
	(c_tmpcounter::visit_for_loop): New routine.
	(c_unparser::visit_foreach, visit_for_loop): Rewrite to properly
	support continue/breaks, non-local exits, (foreach) locks.
	(emit_global): Emit lock variable.
	(varlock ctor, dtor): Lock/unlock global variable.
	(varlock_w, varlock_r): New concrete subclasses.  Update all users.
	* tapset/builtin_logging.stp (exit): Don't set last_error.
	* src/testsuite/buildok/sixteen.stp: New test.

	* tapsets.cxx: Temporarily rolled back graydon's changes.

2005-08-23  Graydon Hoare  <graydon@redhat.com>

	* tapsets.cxx: Re-implement dwarf probe-pattern resolution.

2005-08-22  Frank Ch. Eigler  <fche@elastic.org>

	PR systemtap/1134
	* elaborate.h (module_fds): New member in systemtap_session.
	* tapsets.cxx (dwarf_derived_probe ctor): Open /sys/module/$MOD/.text
	for the duration of a systemtap session, to lock module in memory.

2005-08-21  Frank Ch. Eigler  <fche@redhat.com>

	PR systemtap/1195, systemtap/1193
	* elaborate.cxx (alias_expansion_builder): Set new block token.
	* parse.cxx (parse_symbol): Set new target_symbol token.
	* runtest.sh: Store more pertinent failure data.
	* tapsets.cxx (emit_probe_entries): Rewrite error-handling path.
	* translate.cxx (emit_common_header): Goodbye errorcount, hello
	last_error & last_stmt.
	(c_unparser::visit_statement): New "header" for all other stmts.
	(c_assignop, visit_binary_expression): Adapt to last_error.
	* tapset/builtin_logging.stp: Adapt to last_error.

2005-08-19  Frank Ch. Eigler  <fche@elastic.org>

	PR systemtap/1213
	* translate.cxx (visit_if_statement): Translate else arms.

2005-08-19  Frank Ch. Eigler  <fche@elastic.org>

	PR systemtap/1209