path: root/ChangeLog

2005-08-09  Graydon Hoare  <graydon@redhat.com>

	* testsuite/parseok/nine.stp: Update
	* testsuite/semok/{six,seven,eleven,seventeen}.stp: Update.

2005-08-09  Graydon Hoare  <graydon@redhat.com>

	* staptree.{cxx,h} 	
	(target_symbol): New struct.	
	(*_visitor::visit_target_symbol): Support it.
	(visitor::active_lvalues)
	(visitor::is_active_lvalue)
	(visitor::push_active_lvalue)
	(visitor::pop_active_lvalue): Support lvalue-detection.
	(delete_statement::visit)
	(pre_crement::visit)
	(post_crement::visit)
	(assignment::visit): Push and pop lvalue expressions.
	* elaborate.{cxx,h} 
	(lvalule_aware_traversing_visitor): Remove class.
	(no_map_mutation_during_iteration_check)
	(mutated_map_collector): Update lvalue logic.
	(typeresolution_info::visit_target_symbol): Add, throw error.
	* parse.{cxx,h}
	(tt2str)
	(tok_is)
	(parser::expect_*)
	(parser::peek_*): New helpers.
	(parser::parse_symbol): Rewrite, support target_symbols.
	* translate.cxx (c_unparser::visit_target_symbol): Implement.
	* tapsets.cxx (var_expanding_copy_visitor): Update lvalue logic,
	change visit_symbol to visit_target_symbol.

2005-08-09  Martin Hunt  <hunt@redhat.com>

	PR 1174
	* stp_check.in: Supply path for lsmod. 
	* stp_check: Removed.

2005-08-09  Graydon Hoare  <graydon@redhat.com>

	* elaborate.cxx: 
	(delete_statement_symresolution_info): New struct.
	(symresolution_info::visit_delete_statement): Use it.
	(delete_statement_typeresolution_info): New struct.
	(typeresolution_info::visit_delete_statement): Use it.
	(symresolution_info::find_var): Accept -1 as 'unknown' arity.
	* elaborate.h: Update to reflect changes in .cxx.
	* translate.cxx (mapvar::del): New method.
	(c_unparser::getmap): Check arity >= 1;
	(delete_statement_operand_visitor): New struct.
	(c_unparser::visit_delete_statement): Use it.
	* staptree.cxx (vardecl::set_arity): Accept and ignore -1.
	(vardecl::compatible_arity): Likewise.
	* testsuite/buildok/eight.stp: New test for 'delete' operator.

2005-08-08  Roland McGrath  <roland@redhat.com>

	* loc2c-test.c: New file.
	* Makefile.am (noinst_PROGRAMS): Add loc2c-test.
	(loc2c_test_SOURCES, loc2c_test_LDADD): New variables.
	* Makefile.in, aclocal.m4: Regenerated.

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

	* stap.1.in: Autoconfify old man page.
	* configure.ac: Make it so.
	* stap.1: Removed.
	* configure, Makefile.in, aclocal.m4: Regenerated.

2005-08-05  Frank Ch. Eigler  <fche@elastic.org>

	* runtest.sh: Keep around log files from crashed processes,
	those whose rc is neither 0 nor 1.

2005-08-05  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (query_statement|function|cu|module): Add explicit
	nested try/catch, since elfutils iteration seems to block
	exception catching.

2005-08-05  Frank Ch. Eigler  <fche@elastic.org>

	PR translator/1175
	* translate.cxx (*): Added unlikely() markers to most emitted error
	checks.
	(mapvar::get,set): Handle NULL<->"" impedance mismatch.
	(itervar::get_key): Ditto.  Use base index=1 for keys.
	* testsuite/buildok/one.stp: Extend.  And it runs with -p5 too.
	* stap.1: Document use of ";" statament as mechanism for grammar
	ambiguity resolution.
	* stp_check.in: Set $prefix.
	* systemtap.spec.in: Prereq kernel-devel, kernel-debuginfo,
	and not tcl.
	* tapsets.cxx: Make slightly less verbose.

2005-08-03  Graydon Hoare  <graydon@redhat.com>

	* tapsets.cxx (dwflpp): Fix address calculation logic a bit,
	and use prologue-end addresses for function probes.

2005-08-03  Frank Ch. Eigler  <fche@redhat.com>

	* stap.1: More meat, all stub sections filled.
	* elaborate.cxx (visit_assignment): Add numerous missing cases.
	* parse.cxx: Parse ".=" operator.
	* testsuite/semok/sixteen.stp: Check them.
	* main.cxx (usage): Don't show incompletely supported options.

2005-08-03  Martin Hunt  <hunt@redhat.com>

	* stp_check.in : Copy sources to /var/cache/systemtap.
	* systemtap.spec.in: Install stp_check.
	* Makefile.am (install-exec-local): Install stp_check.

2005-08-03  Martin Hunt  <hunt@redhat.com>

	* configure.ac: Add stp_check to AC_CONFIG_FILES.
	* stp_check.in : New file.

2005-08-03  Frank Ch. Eigler  <fche@elastic.org>

	* README: Be more specific about prerequisites.
	* tapset/builtin_string.stp: New builtin.
	* testsuite/buildok/seven.stp, semko/eighteen.stp: New tests.

2005-08-03  Roland McGrath  <roland@redhat.com>

	* configure.ac, systemtap.spec.in: Version 0.2.1.
	* Makefile.in, aclocal.m4, configure: Regenerated.

2005-08-02  Roland McGrath  <roland@redhat.com>

	* loc2c.c (emit_bitfield): Return bool, value from emit_base_fetch.
	(c_translate_fetch): Update caller.
	(c_translate_pointer): Never ignore emit_base_fetch return value.

	* systemtap.spec.in (%install): Remove parameters after %makeinstall.

2005-08-02  Frank Ch. Eigler  <fche@elastic.org>

	* loc2.c (emit_loc_address): Emit interleaved declaration into
	its own nested { } block.
	* tapsets.cxx (literal_stmt_for_local): Emit deref_fault block
	unconditionally.
	* tapset/builtin_hexstring.stp: New builtin.
	* testsuite/buildok/six.stp: New test.

2005-08-02  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx (emit_registrations): Treat module_name="kernel"
	as if module_name="".

2005-08-01  Graydon Hoare  <graydon@redhat.com>

	* staptree.{cxx,h} (probe_point::component): Add a ctor.
	* tapsets.cxx (dwarf_derived_probe): Synthesize concrete
	probe_point for matched pattern.
	(dwarf_probe_type)
	(dwarf_query::add_kernel_probe)
	(dwarf_query::add_module_probe): Remove, they were noise.
	(dwflpp::module_name_matches): Don't call get_module_dwarf().

2005-08-01  Frank Ch. Eigler  <fche@elastic.org>

	* tapsets.cxx: Support ".return" option for function probe points.
	* testuite/buildok/five.stp: Try it.

2005-08-01  Frank Ch. Eigler  <fche@elastic.org>

	* elaborate.cxx (derive_probes, semantic_pass_symbols): Improve
	error message specificity.
	* translate.cxx (emit_module_init): Compact partial registration
	recovery code.
	(emit_module_exit): Invert deregistration sequence.
	* testsuite/buildok/four.stp: Some module() test case.

2005-08-01  Frank Ch. Eigler  <fche@elastic.org>

	* elaborate.cxx (derive_probes): Print error if results empty.
	* tapsets.cxx (dwflpp_assert): Handle positive RCs, which likely
	came from errno.
	(dwflpp::setup): Improve missing debug-info messages.
	* testsuite/semko/sixteen,seventeen.stp: New tests.
	* runtest.sh: Save stdout/stderr of FAIL/XPASS test cases.
	* Makefile.am (clean-local): Clean up testsuite/.
	* Makefile.in, aclocal.m4: Regenerated.

2005-07-29  Frank Ch. Eigler  <fche@redhat.com>

	From Graydon Hoare <graydon@redhat.com:
	* tapsets.cxx (var_expanding_copy_visitor): Correct lvalue cases.

2005-07-29  Frank Ch. Eigler  <fche@redhat.com>

	* Makefile.am: Make sure stpd goes into libexec/systemtap/
	* Makefile.in: Regenerated.

2005-07-29  Frank Ch. Eigler  <fche@redhat.com>

	* configure.ac: Fail configure stage if elfutils 0.111+ is not found.
	* Makefile.am, elaborate.cxx, tapsets.cxx: Unconditionalize.
	* configure, Makefile.in, config.in: Regenerated.

2005-07-29  Roland McGrath  <roland@redhat.com>

	* Version 0.2 distribution.

	* systemtap.spec.in: Include %{_datadir}/systemtap/tapset directory.
	(%check): Add section, run make check.
	* Makefile.am (EXTRA_DIST): Add runtest.sh.
	* Makefile.in: Regenerated.

	* systemtap.spec.in: Include man pages.
	* Makefile.am (man_MANS): Renamed to dist_man_MANS.

	* configure.ac: Add AM_CONDITIONAL definition of HAVE_LIBDW.
	* Makefile.am [HAVE_LIBDW] (stap_SOURCES_libdw): New variable.
	(stap_SOURCES): Use it, moving loc2c.c there.
	* configure, config.in: Regenerated.

	* tapsets.cxx: <libdw.h> -> <elfutils/libdw.h>
	* loc2c.c, loc2c.h: Likewise.

	* main.cxx (main): Check return value of system.

	* systemtap.spec.in (LDFLAGS): Punt using $ORIGIN here, just hard-code
	%{_libdir}.
	(elfutils_version): Bump to 0.111.
	[bundled_elfutils]: Don't massage libdwfl.h header any more.

	* configure.ac: Don't check for libelf.h, not actually #include'd.
	Update -ldw check for merged libdwfl+libdw.
	(stap_LIBS): New substituted variable.  Set only this, not LIBS,
	with -ldw check.
	* Makefile.am (stap_LDADD): New variable, use @stap_LIBS@.

	* Makefile.am (AM_CPPFLAGS): Use ${pkgdatadir}.
	(AM_CFLAGS): Use -W instead of -Wextra, for gcc 3 compatibility.
	(stpd_LDFLAGS): Variable removed.
	(AM_MAKEFLAGS): Variable removed.

2005-07-28  Frank Ch. Eigler  <fche@elastic.org>

	* elaborate.cxx (find_var): Correct array dereferencing thinko.

2005-07-28  Graydon Hoare  <graydon@redhat.com>

	* elaborate.cxx (derived_probe::derived_probe): Accept NULL probe.
	* staptree.cxx (provide, require): Move from here...
	* staptree.h: to here, and virtualize deep-copy methods.
	* translate.cxx
	(c_unparser::emit_common_header): Include loc2c-runtime.h
	* tapsets.cxx
	(dwflpp::iterate_over_modules): Use new, faster getmodules loop.
	(dwflpp::literal_stmt_for_local): New method, call loc2c.
	(var_expanding_copy_visitor): New struct which expands $-vars.
	(dwarf_derived_probe): Rebuild this->body using var expander.
	(query_function): Refactor logic a bit for speed.
	* loc2c.{c,h}: Copies (with minor changes) of Roland's work
	from elfutils CVS.
	* Makefile.am (AM_CFLAGS): Set to elfutils-style.
	(stap_SOURCES): Add loc2c.c.
	* Makefile.in: Regenerate.

2005-07-28  Frank Ch. Eigler  <fche@redhat.com>

	* stap.1: Beginnings of a man page.
	* Makefile.am: Install it.  Comment out stpd LDADD goodies.
	* configure.ac: Futilely complain about non-stpd LIBS.
	* Makefile.in, configure.in: Regenerated.
	* main.cxx (usage): Remove ARGS from help text, as nothing is
	done with these yet.

2005-07-28  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx: Add "pt_regs*" field to context.
	* tapsets.cxx (*): Correct kprobes API interface.
	* testsuite/buildok/three.stp: New test, copied from semok.
	* Makefile.am (install-data-local): Also install runtime/relayfs,
	so scripts can build against headers located thereunder.
	* Makefile.in: Regenerated.

2005-07-28  Frank Ch. Eigler  <fche@redhat.com>

	translator/1120
	* main.cxx (main): Preset -R and -I options from environment
	variables (if set).  Pass guru mode flags to parser.
	* parse.cxx (privileged): New parser operation flag.  Update callers.
	(parse_embeddedcode): Throw an error if !privileged.
	(parse_functiondecl): Change signature.  Prevent duplicates.
	(parse_globals): Ditto.
	* parse.h: Corresponding changes.
	* tapset/*.stp: Beginnings of real tapset library, to replace
	previous builtins.
	* tapsets.cxx: Greatly reduce verbose mode output.
	* Makefile.am: Install & dist it.
	* runtest.sh: Refer to it.
	* Makefile.in, aclocal.m4: Regenerated.
	* testsuite/*/*.stp: Set guru mode via /bin/sh if needed.
	* testusite/*/*ko.stp: Homogenize shell scripts.

2005-07-28  Frank Ch. Eigler  <fche@redhat.com>

	translator/1120
	translator/1123
	* elaborate.cxx (semantic_pass_symbols): Print a more helpful
	error message around exceptions.
	* elaborate.h (systemtap_session): Add guru_mode field.
	* main.cxx (main): Initialize it to false.  Add version-sensitive
	script library searching.  Add more failure messages.
	* tapsets.cxx (dwflpp_assert): Add a decorative text parameter.
	Update callers.

2005-07-28  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (install-data-local): Add runtime/transport.
	* Makefile.in: regenerated.

2005-07-26  Graydon Hoare  <graydon@redhat.com>

	* elaborate.cxx: Revert builtin-function code.
	* translate.cxx: Likewise.
	* tapsets.{h,cxx}: Likewise.

2005-07-26  Martin Hunt  <hunt@redhat.com>

	* buildrun.cxx (compile_pass): Add -Wno-unused to CFLAGS because
	usually a module doesn't use every function in the runtime.

2005-07-26  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (stpd_LDFLAGS): Set rpath correclty because otherwise
	automake doesn't seem to get it right when binaries are in libexec
	subdirs.
	(AM_CPPFLAGS): revert.
	* systemtap.spec.in (LDFLAGS): Set libexecdir here instead.

2005-07-26  Frank Ch. Eigler  <fche@redhat.com>

	Support %{ embedded-c %}
	* staptree.h (embeddedcode): New statement subtype.  Stub support in
	visitors.
	* staptree.cxx: Ditto.
	* parse.cxx: Parse %{ / %}.  Accept "_" as identifier leading char.
	(parse_probe): Simplify calling convention.
	* elaborate.h: Store embedded code.
	* elaborate.cxx: Pass it.
	* translate.cxx: Transcribe it.  Return some dropped module init/exit
	code.
	* Makefile.am: Add buildok/buildko tests.
	* Makefile.in: Regenerated.
	* main.cxx: Return EXIT_SUCCESS/FAILURE even for weird rc.
	* testsuite/parseok/nine.stp: Test _identifiers.
	* testsuite/transko/*.stp: Tweak to force -p3 rather than -p2 errors.
	* testsuite/semok/transko.stp: ... and keep it that way in the future.
	* testsuite/parse*/*: Some new tests for %{ %}.
	* testsuite/build*/*: New tests for -p4.

2005-07-26  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (AM_CPPFLAGS): Set PKGLIBDIR correctly.

2005-07-26  Martin Hunt  <hunt@redhat.com>
	* systemtap.spec.in: Stpd goes in libexec/systemtap.
	* Makefile.am (libexecdir): Set to libexecdir/systemtap.
	* aclocal.m4, Makefile.in: Regenerated

2005-07-25  Roland McGrath  <roland@redhat.com>

	* configure.ac: Don't define PKGLIBDIR and PKGDATADIR here.
	* Makefile.am (AM_CPPFLAGS): New variable, use -D here instead.
	(dist-hook): Don't remove ChangeLog files.
	(install-data-local): Don't install docs, just runtime stuff.
	(rpm, clean-local): Use make variables instead of @substitution@s.
	* configure, config.in, aclocal.m4, Makefile.in: Regenerated

2005-07-22  Graydon Hoare  <graydon@redhat.com>

	* translate.cxx (itervar): New class.
	(*::visit_foreach_loop): Implement.
	Various bug fixes.
	* staptree.cxx (deep_copy_visitor::*): Copy tok fields.
	* elaborate.cxx (lvalue_aware_traversing_visitor):
	(mutated_map_collector):
	(no_map_mutation_during_iteration_check): New classes.
	(semantic_pass_maps): New function to check map usage.
	(semantic_pass): Call it.
	* testsuite/transok/eight.stp: Test 'foreach' loop translation.
	* testsuite/semko/{thirteen,fourteen,fifteen}.stp:
	Test prohibited forms of foreach loops.

2005-07-21  Martin Hunt  <hunt@redhat.com>

	* Makefile.am (EXTRA_DIST): Add systemtap.spec.
	(install-data-local): Install docs and probes.
	(docs): New target.
	(rpm): New target.

	* configure.ac: Set initial version to 0.1.1.
	(pkglibdir): Set to libexec.

	* Makefile.in: Regenerated.

2005-07-20  Graydon Hoare  <graydon@redhat.com>

	* elaborate.{cxx,h} (find_array): Remove.
	(find_scalar): Rename to find_var, add array support.
	* staptree.{cxx,h} (vardecl::compatible_arity): New method.
	* translate.cxx: Refactor, add array read/write support.
	* testsuite/transok/three.stp: Uncomment array uses.
	* testsuite/transok/seven.stp: New test of array r/w.

2005-07-20  Frank Ch. Eigler  <fche@redhat.com>

	* tapsets.cxx (*::emit_[de]registrations): Add logic for probe
	lifecycle control (session_state).
	* translate.cxx (emit_common_header,emit_module_{init,exit}): Ditto.
	(visit_*): Use per-context errorcount.

2005-07-19  Frank Ch. Eigler  <fche@redhat.com>

	* Makefile.am (dist-hook): Complete the resulting tarball.
	* Makefile.in: Regenerated.

2005-07-19  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx (emit_module_init/exit, translate_pass): Conform
	to newer runtime startup/shutdown hooks.

2005-07-15  Frank Ch. Eigler  <fche@redhat.com>

	* Makefile.am (install-data-local): Correct typo.
	* buildrun.cxx (compile_pass): Ditto.
	* main.cxx (main): Print errors if passes 4 or 5 fail.

2005-07-14  Frank Ch. Eigler  <fche@redhat.com>

	* buildrun.cxx (compile_pass, run_pass): Get closer to a working
	test_mode.
	* translate.cxx (emit_module_init, emit_common_header): Ditto.
	(translate_pass): Ditto.

2005-07-14  Frank Ch. Eigler  <fche@redhat.com>

	* Makefile.am (stpd): Install in $pkglibdir.
	(runtime): Copy to $pkgdatadir.
	* configure.ac: Pass along pkgdatadir and pkglibdir.
	* main.cxx: Default runtime_path from pkgdatadir.
	* buildrun.cxx (run_pass): Correct stpd directory.
	* Makefile.in, configure, config.in: Regenerated.

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

	* elaborate.cxx
	(semantic_pass_symbols): Only enter body if non-null.
	(semantic_pass_types): Likewise.
	(semantic_pass): Pass session to register_standard_tapsets.
	* translate.cxx
	(builtin_collector): New struct.
	(hookup_builtins): New function.
	(translate_pass): Only translate functions with bodies.
	(c_unparser::emit_common_header): Likewise, and call hookup_builtins.
	* tapsets.hh (builtin_function): New class.
	(register_standard_tapsets): Change parameter to session.
	* tapsets.cc (bultin_function::*): Implement class.
	(register_standard_tapsets): Register printk, log, warn.
	* testsuite/transok/six.stp: New test.

2005-07-12  Frank Ch. Eigler  <fche@redhat.com>

	* buildrun.cxx (compile_pass): Make non-verbose mode quieter.
	(run_pass): Spawn stpd for dirty work.
	* Makefile.am: Also build stpd into libexecdir.
	* configure.ac: Pass LIBEXECDIR.
	* Makefile.in, configure, config.in: Regenerated.
	* AUTHORS: Update.

2005-07-11  Graydon Hoare  <graydon@redhat.com>

	* staptree.cxx (require): Generally handle null pointers in src.
	(deep_copy_visitor::visit_if_statement): Revert fche's change.

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

	* parse.cxx (parse_literal): Compile cleanly on 64-bit host.
	* staptree.cxx (deep_copy_visitor::visit_if_statement): Don't
	freak on a null if_statement.elseblock.

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

	* staptree.{h,cxx} (deep_copy_visitor): New visitor.
	* elaborate.cxx
	(derived_probe::derived_probe):
	(alias_expansion_builder::build): Use it.
	* testsuite/semok/fifteen.stp: New test which relies on deep copy.

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

	* Makefile.am (dist): Package up the source tree, including
	testsuite and runtime.
	* main.cxx: Use clog instead of cerr for logging messages.
	* buildrun.cxx: Ditto.
	(compile_pass): Add -Iruntime/user for test mode.
	* translate.cxx (*): Commonalize test/real mode output.
	* Makefile.in: Regenerated.

2005-07-05  Graydon Hoare  <graydon@redhat.com>

	* elaborate.{h,cxx}: Revert previous changes.
	* tapsets.{h,cxx}: Adapt to verbose as a member of session.
	* elaborate.cxx (alias_expansion_builder::build): Avoid copying
	locals between alias definition and use.
	* testsuite/semok/{twelve,thirteen,fourteen}.stp: New tests.
	* staptree.cxx (probe_alias::printsig): Print equals sign.

2005-07-05  Frank Ch. Eigler  <fche@redhat.com>

	* elaborate.h (systemtap_session): Add more command-line arguments.
	* staptree.h (verbose): Bad global, no donut.
	* elaborate.cxx: Temporarily disable verbose variable access.
	* main.cxx: Support more arguments, build/run passes.  Revamp
	temporary file generation and partial-pass output generation.
	* tapsets.cxx, translate.cxx: Emit just enough extra punctuation
	and fluff to make generated probe pass -Werror.
	* buildrun.cxx, buildrun.h: New files for passes 4/5.  Partial
	support for build pass, nothing on probe execution yet.
	* testsuite/transok/*.stp: Force just -p3, now that -p4/5 exist.
	* Makefile.am, Makefile.in: Corresponding changes.

2005-07-04  Graydon Hoare  <graydon@redhat.com>

	* elaborate.h (symresolution_info::current_derived_probe): New field.
	(symresolution_info::current_probe): Change type.
	* elaborate.cxx (semantic_pass_symbols): Add passes for resolving
	locals in pre-derivation base probes and pre-expansion aliases.
	(symresolution_info::visit_symbol):
	(symresolution_info::find_scalar): Update to match new field.

2005-06-27  Graydon Hoare  <graydon@redhat.com>

	* staptree.{h,cxx} (probe_alias): New structure.
	* parse.{h,cxx} (parser::parse): Parse probes or probe aliases.
	(parser::parse_probe): Likewise.
	* tapsets.{h,cxx}:
	(derived_probe_builder):
	(match_key):
	(match_node):
	(alias_derived_probe): Move from here,
	* elaborate.{h,cxx}: to here.
	* elaborate.h (systemtap_session::pattern_root): New member.
	(register_library_aliases): New function.
	* tapsets.cxx: Build one dwarf_derived_probe per target address.

2005-06-23  Graydon Hoare  <graydon@redhat.com>

	* tapsets.cxx
	(probe_type): New enum.
	(probe_spec): New struct.
	(dwarf_derived_probe): Reorganize a bit, interpret .return.
	(query_statement): Translate addresses back to module space.
	(probe_entry_function_name):
	(probe_entry_struct_kprobe_name):
	(foreach_dwarf_probe_entry):
	(declare_dwarf_kernel_entry):
	(deregister_dwarf_kernel_entry):
	(register_dwarf_kernel_entry):
	(register_dwarf_module):
	(declare_dwarf_module_entry):
	(deregister_dwarf_module_entry):
	(register_dwarf_module_entry): New functions.
	(dwarf_derived_probes::emit_probe_entries):
	(dwarf_derived_probes::emit_registrations):
	(dwarf_derived_probes::emit_deregistrations): Implement.

2005-06-21  Frank Ch. Eigler  <fche@redhat.com>

	* config.in, configure: Regenerated.
	* tapsets.cxx: Make dwarf code conditional on new elfutils header.

2005-06-20  Graydon Hoare  <graydon@redhat.com>

	* configure.ac: Scan for libdwfl.
	* staptree.h (verbose): New global.
	* main.cxx (usage, main): Implement -v option.
	* tapsets.cxx (dwflpp): New struct.
	(query_statement): New function.
	(query_function): New function.
	(query_cu): New function.
	(query_module): New function.
	(dwarf_derived_probe): Implement primary forms.

2005-06-14  Graydon Hoare  <graydon@redhat.com>

	* tapsets.h: New file.
	(derived_probe_builder): Callback for making derived probes.
	(match_key): Component of pattern-matching tree.
	(match_node): Other component of pattern-matching tree.
	* tapsets.cxx: Add pattern-matching system for probes.
	(alias_derived_probe): Skeleton for alias probes.
	(dwarf_derived_probe): Skeleton for dwarf probes.
	(register_standard_tapsets): Registry for standard tapsets.

2005-06-13  Frank Ch. Eigler  <fche@redhat.com>

	Start separating out translator-side probe point recognition.
	* tapsets.cxx: New file.
	(be_derived_probe): Support for begin/end probes.
	(derive_probe): Ditto.  Reject anything unrecognized.
	* translator.cxx: Move out old code.
	* Makefile.am: Add new source file.
	* testsuite/semok/*: Switch to begin/end probes only.

2005-06-08  Frank Ch. Eigler  <fche@redhat.com>

	systemtap/916
	Implement all basic scalar operators, including modify-assignment.
	* parse.cxx (lexer): Allow multi-character lookahead in order to
	scan 1/2/3-character operators.
	(parse_boolean_or/and/xor/shift): New routines.
	* translate.cxx (visit_assignment, visit_binary_expression,
	visit_*_crement): Generally rewrote.
	(visit_*): Added more parentheses in output.
	(emit_module_init): Initialize globals.
	* staptree.h, elaborate.cxx, elaborate.h: Remove exponentiation.
	* main.cxx (main): Add an end-of-line to output file.
	* testsuite/*: Several new tests.

2005-06-05  Frank Ch. Eigler  <fche@elastic.org>

	Implement for/next/continue/break/while statements.
	* staptree.h: Declare new 0-arity statement types.  Tweak for_loop.
	* parse.cxx: Parse them all.
	* translate.cxx (c_unparser): Maintain break/continue label stack.
	(visit_for_loop, *_statement): New implementations.
	* elaborate.*, staptree.cxx: Mechanical changes.
	* testsuite/parseok/ten.stp, semko/twelve.stp, transko/two.stp,
	transok/five.stp: New tests.

2005-06-03  Frank Ch. Eigler  <fche@elastic.org>

	* elaborate.cxx (find_*): Remove arity checks from here ...
	* staptree.cxx (set_arity): Put arity match assertion here.
	* testsuite/semko/{six,nine}.stp: Confirm logic.
	* testsuite/transko/one.stp: First translation-time ko test.

2005-06-03  Frank Ch. Eigler  <fche@redhat.com>

	* TODO: Removed entries already represented in bugzilla.
	* elaborate.cxx: Rewrite type inference for several operators.
	* main.cxx (main): For -p2 runs, print types of function/probe locals.
	* parse.cxx (scan): Identify more two-character operators.
	(parse_comparison): Support the whole suite.
	* translate.cxx (visit_unary_expression, logical_or_expr,
	logical_and_expr, comparison,ternary_expression): New support.
	* testsuite/parseok/semok.stp: Clever new test.
	* testsuite/transok/four.stp: New test.
	* testsuite/*: Some tweaked tests for syntax changes.

2005-06-03  Frank Ch. Eigler  <fche@redhat.com>

	* parse.cxx (scan): Support C and C++ comment styles.
	* testsuite/parseok/four.stp: Test them some ...
	* testsuite/parseko/nine.stp: ... and some more.

2005-06-02  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx (visit_concatenation, visit_binary_expression):
	New basic implementation.
	(*): Reduce emitted whitespace and remove `# LINE "FILE"' lines.

2005-06-02  Frank Ch. Eigler  <fche@redhat.com>

	Parse foreach construct.  Added fuller copyright notices throughout.
	* staptree.h (foreach_loop): New tree node type.
	* staptree.cxx: Print it, visit it, love it, leave it.
	* parse.cxx: Parse it.
	(parse_stmt_block): Don't require ";" separators between statements.
	(parse_array_in): Use [] as index group operator instead of ().
	* elaborate.cxx (visit_foreach_loop): New code.
	* translate.cxx: Slightly tighten errorcount/actioncount handling.
	* main.cxx: Accept "-" as script file name standing for stdin.
	(visit_arrayindex): Switch to simpler set_arity call.
	* configure.ac: Generate DATE macro.
	* Makefile.in, configure, config.in: Regenerated.
	* testsuite/*: New/updated tests for syntax changes, foreach ().

2005-05-30  Frank Ch. Eigler  <fche@redhat.com>

	More fully parse & elaborate "expr in array" construct.
	* staptree.h (array_in): Make this unary.  Update .cxx to match.
	* parse.cxx (parse_array_in): Rewrite.
	(parse_symbol_plain): Removed.  Update .h to match.
	* elaborate.cxx (typeresolution_info::visit_array_in): New function.
	(find_array): Tentatively, accept arity=0.
	* translate.cxx (c_unparser::c_assign): New functions to eliminate
	much ugly duplication.  Use throughout.
	(visit_symbol): Correct function formal argument search.
	(c_tmpcounter*::visit): Add missing recursion in several functions.
	* testsuite/*: Add new tests for array-in construct.  Add the
	first "transok" test.
	* Makefile.am: Add transok tests.
	* Makefile.in: Regenerated.

2005-05-26  Frank Ch. Eigler  <fche@redhat.com>

	* translate.cxx: Traverse trees just for common-header generation,
	to emit explicit temp variables into context.  Switch to explicit
	"frame" pointer in generated function/probe bodies.  Initialize
	locals in function bodies.  Rename "test_unparser" to "c_unparser"
	throughout.

2005-05-24  Frank Ch. Eigler  <fche@redhat.com>

	* elaborate.cxx (find_array): Support automagic tapset globals.
	* testsuite/semok/nine.stp: Test it.
	* staptree.cxx (stapfile print): List globals.

2005-05-24  Frank Ch. Eigler  <fche@redhat.com>

	* testsuite/semlib/*: New tapset library chunks for "-I" testing.
	* testsuite/semok/eight.stp, nine.stp: New tests.

2005-05-22  Frank Ch. Eigler  <fche@elastic.org>

	* Makefile.am (gcov): New target to generate test-coverage data from
	a testsuite run.
	* Makefile.in: Regenerated.

2005-05-20  Frank Ch. Eigler  <fche@redhat.com>

	Many changes throughout.  Partial sketch of translation output.
	* elaborate.*: Elaboration pass.
	* translate.*: Translation pass.
	* staptree.*: Simplified for visitor concept.
	* main.cxx: Translator mainline.
	* *test.cxx: Removed.
	* testsuite/*: Some new tests, some changed for newer syntax.

2005-05-05  Frank Ch. Eigler  <fche@redhat.com>

	* parse.cxx (parse): Add helper methods.
	(lexer::scan, parse_assignment): Parse "<<<" operator.  Fix assignment
	associativity.
	(parse_symbol): Permit function with empty arg list.
	(parse_global, parse_statement, parse_functiondecl): Expect
	unconsumed leading keyword.
	(parse_global): Don't use ";" termination.
	* parse.h: Corresponding changes.
	* staptree.cxx (binary_expression::resolve_types): Fix <<<
	type inference.
	(translator_output): Improve pretty-printing.
	(*): Add general visitors to statement/expression types.
	* staptree.h: Corresponding changes.  Tweak symresolution_info fields.
	Add semantic_error class.
	* semtest.cxx: Adapt to this.
	* testsuite/parseok/two.stp, semok/*.stp: Adapt to syntax changes.

2005-03-15  Frank Ch. Eigler  <fche@redhat.com>

	* semtest.cxx: Print probe signatures properly.
	* staptree.cxx (probe::printsig): New function.

2005-03-15  Frank Ch. Eigler  <fche@redhat.com>

	* TODO: New file.  Include some probe-point-provider syntax examples.
	* parse.cxx (lexer::scan, parser::parse_literal): Support hex, octal
	numbers via strtol.
	(parse_probe, parse_probe_point): Modify for dotted syntax.
	* staptree.cxx: Ditto.
	* parsetest.cxx, semtest.cxx: Print parse/sem results even if
	.stp files were given on command line.
	* parse.h, staptree.h: Rename probe_point_spec -> probe_point.
	* runtest.sh: New test-runner front-end script.
	* Makefile.am: Use it for TESTS_ENVIRONMENT.
	* testsuite/*: Update probe point syntax.  Add a bunch of new tests.

2005-03-04  Frank Ch. Eigler  <fche@redhat.com>

	* parse.cxx (scan): Support '$' characters in identifiers.
	(parse_symbol): Support thread-> / process-> shorthand.
	* staptree.cxx (symresolution_info::find): Split up into
	find_scalar, find_array, find_function.
	(resolve_symbols): Call the above for symbol/arrayindex/functioncall.
	(find_scalar): Add stub support for synthetic builtin variables.
	* staptree.h: Corresponding changes.
	* testsuite/*: Some new tests.

2005-03-03  Frank Ch. Eigler  <fche@redhat.com>

	* parse.cxx (parse_assignment): Assert lvalueness of left
	operand.
	* staptree.h (expression): Add is_lvalue member.
	* staptree.cxx (functioncall::resolve_types): Don't crash on
	formal-vs-actual argument count mismatch.
	(*): Add some is_lvalue stub functions.
	* testsuite/*: Some new tests.

2005-03-01  Frank Ch. Eigler  <fche@redhat.com>

	* parse.cxx: Implement left-associativity for several types of
	operators.  Add some more statement types.  Parse functions.
	Be able to print tokens.  Simplify error generating functions.
	Save tokens in all parse tree nodes.
	* parse.h: Corresponding changes.
	* staptree.cxx: Move tree-printing functions here.  Add many
	new functions for symbol and type resolution.
	* staptree.h: Corresponding changes.
	* semtest.cxx: New semantic analysis pass & test driver.
	* testsuite/sem*/*: New tests.
	* parsetest.cxx: Separated parse test driver.
	* testsuite/parse*/*: Adapt tests to parsetest driver.
	* Makefile.am: Build semtest.  Run its tests.
	* Makefile.in: Regenerated.

2005-02-11  Frank Ch. Eigler  <fche@redhat.com>

	* parse.cxx, parse.h: New files: parser.
	* staptree.h: New file: semantic object declarations.
	* staptree.cxx: New dummy driver file.