| Commit message (Collapse) | Author | Age | Files | Lines |
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PR 5102
* translate.cxx (visit_statement): Add new parameter regarding whether
c->last_stmt needs to be updated. Update callers, mostly passing
"false".
(visit_EXPRESSIONTYPE): Generally omit setting c->last_stmt, unless
the construct can set c->last_error.
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2007-10-03 Frank Ch. Eigler <fche@elastic.org>
PR 5096
* translate.cxx (emit_function): Put nesting limit/control logic into
function body ...
(visit_functioncall): ... and not into each call site.
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2007-10-02 Frank Ch. Eigler <fche@redhat.com>
PR 3635
* translate.cxx (emit_global): Wrap all globals and locks into one
top-level struct. Update references to former "global_VAR" prefix.
* translate.h (emit_global_init): New function.
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PR 5078
* tapsets.cxx (be_derived_probe): Rework to add error probe support.
Emit probe description array in C for traversal by generated code.
* register_standard_tapsets: Add error probes.
* stapprobes.5.in: Document.
* translate.cxx (emit_module_init): Handle errors that may occur
during begin probes.
(emit_module_exit): Use schedule() rather than cpu_relax() during
shutdown synchronization wait loop.
* staptree.cxx (probe::printsig): Put multiple probe points on same
line.
2007-10-02 Frank Ch. Eigler <fche@redhat.com>
PR 5078
* semok/twentysix.stp, systemtap.base/beginenderror.*: New tests.
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* tapsets.cxx (translator_output::~translator_output): Fix mismatched
delete / delete [].
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PR 5023
* translate.cxx (c_unparser::visit_literal_number): Support LLONG_MIN.
(visit_unary_expression): Likewise.
2007-09-12 Frank Ch. Eigler <fche@elastic.org>
PR 5023.
* buildok/ten.stp: Extend some more.
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PR 5019
* elaborate.cxx (visit_hist_op): Remove log histogram param.
* translate.cxx (assert_hist_compatible): Ditto.
* staptree.cxx (hist_op::print): Ditto.
* session.h (statistic_decl): Ditto.
* parse.cxx (expect_number): Allow negative numbers.
Also validate that input is really numeric. This is used
by histograms to get the parameters.
(parse_hist_op_or_bare_name): Remove code to get parameter
for log histograms.
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* translate.cxx (c_unparser::emit_common_header): Added 'data'
variable to context structure to support procfs probes.
* tapsets.cxx: Improved procfs probe handling.
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PR 4983
* translate.cxx (c_tmpcounter::visit_print_format): Don't declare
temporaries for number and string constants.
(c_unparser::visit_print_format): Use numeric and string constants
directly instead of copying them into temporaries.
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PR 2305
* translate.cxx (c_unparser::visit_foreach_loop): When the user
requested sorting an array of aggregates by value, sort by
@count.
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PR 4591
* parse.cxx (parser::parse_symbol): Tweak 'print' matching to allow
all the new variants with printd and println.
* staptree.h (struct print_format): Add fields for the new print
variants, and parse_print() to help matching.
* staptree.cxx (print_format::parse_print): New static method to
match the print variants and determine their properties.
(print_format::print): Handle the new print types.
(deep_copy_visitor::visit_print_format): Copy the new fields.
* translate.cxx (c_unparser::visit_print_format): Insert delims and
newlines where appropriate for new print functions.
* stap1.in: Document the new print functions.
testsuite/
* lib/stap_run.exp: Make sure to match the entire output, in case
there are multiple pass/fail messages.
* buildok/printf.stp: Add lines for new print variants.
* parseko/printd01.stp: Make sure that bad printd calls are handled.
* parseko/printd02.stp: Ditto.
* parseko/printd03.stp: Ditto.
* parseko/printd04.stp: Ditto.
* systemtap.base/print.stp: Try a bunch of different print calls.
* systemtap.base/print.exp: Driver for above.
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PR 4593
* translate.cxx (c_unparser::emit_common_header): Add an
error_buffer to the context to allow dynamic error messages.
* tapsets.cxx (dwflpp::express_as_string): Let deref / store_deref
fill in last_error with a detailed message.
runtime/
* loc2c-runtime.h (deref, store_deref): Set an error message with
the pointer value and name into last_error, since it's hard to
determine the details once you've already jumped to deref_fault.
tapset/
* conversions.stp (kernel_string, kernel_long, kernel_int,
kernel_short, kernel_char, user_string_warn): Use the
CONTEXT->error_buffer to create an error message instead of a static
local array.
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From Lai Jiangshan <laijs@cn.fujitsu.com>:
* translate.cxx (emit_module_exit): Use stp_warn for warning.
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* translate.cxx (emit_module_init): Emit translator/elfutils
version numbers together.
* main.cxx (version): Ditto.
(main): Skip printing tapset directories where no sources were found.
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PR 4446.
* elaborate.h (derived_probe::initialize_probe_context_vars): New
virtual function that will allow added context vars to be
initialized.
* translate.cxx (c_unparser::emit_common_header): Added
'mark_va_list'.
(c_unparser::emit_probe): Calls new function
initialize_probe_context_vars.
(translate_pass): Includes linux/marker.h if CONFIG_MARKERS is
defined.
* tapsets.cxx (struct dwarf_query): Split into base_query (which
contains most of the original code) and a much smaller
dwarf_query class.
(struct base_query): New class.
(dwarf_query::handle_query_module): New function.
(query_module): Moved code into dwarf_query::handle_query_module().
(mark_derived_probe): Adjusted for new kernel markers.
(mark_derived_probe_group): Ditto.
(mark_var_expanding_copy_visitor): Ditto.
(mark_var_expanding_copy_visitor::visit_target_symbol): Generates
code for new kernel markers.
(struct mark_query): New class.
(mark_query::handle_query_module): New function.
(mark_derived_probe::mark_derived_probe): Adjusted for new kernel
markers.
(mark_derived_probe::join_group): Ditto.
(mark_derived_probe::emit_probe_context_vars): Ditto.
(mark_derived_probe::parse_probe_sig): New function.
(mark_derived_probe::initialize_probe_context_vars): New function.
(mark_derived_probe::emit_module_decls): Adjust for new kernel markers.
(mark_derived_probe::emit_module_init): Ditto.
(mark_derived_probe::emit_module_exit): Ditto.
(struct mark_builder): Ditto.
(mark_builder::build): Ditto.
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* translate.cxx (c_tmpcounter::visit_functioncall): Updated
temporary handling.
(c_unparser::visit_functioncall): No longer copies numeric and
string constants to temporary variables.
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* translate.cxx (c_tmpcounter::visit_binary_expression): Updated
temporary handling.
(c_unparser::visit_binary_expression): Improved handing of numeric
constants when handling '%' and '/' operators.
(c_tmpcounter::visit_print_format): Updated temporary handling.
(c_unparser::visit_print_format): Removed the need for a result
temporary when printing to a stream.
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PR 2339
* translate.cxx (c_unparser_assignment::c_assignop): Improved
handling of numeric constants in the rest of the assignment
operators.
(c_tmpcounter_assignment::c_assignop): Updated temporary
handling.
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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.
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GCC 4.3 compatibility patches from Debian.
* buildrun.cxx, hash.cxx, tapsets.cxx, translate.cxx: #include a few
more C++ headers.
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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().
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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.
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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.
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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.
2007-03-20 Frank Ch. Eigler <fche@elastic.org>
PR 4224.
* sym.c (_stp_module_relocate): Support kernel relocations.
2007-03-20 Frank Ch. Eigler <fche@elastic.org>
* symbols.c (_stp_do_symbols): Add cautionary blurb for important
setup of _stp_modules[0]->text.
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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.
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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.
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* 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.
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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.
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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.
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* translate.cxx (translate_pass): Remove old string impedance
mismatch stuff. Modify included files.
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* translate.cxx (emit_module_init): Add some more type casts to printk args.
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* translate.cxx (emit_module_init): BZ3888. Add memory usage for the
runtime to the printk.
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* translate.cxx (mapvar::exists): Use new _stp_map_exists function.
Testing for zero is no longer correct after changes from 2007-01-10
below.
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* 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.
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* translate.cxx (mapvar::del): Call the new _stp_map_del
function instead of setting to zero.
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* 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.
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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.
2006-12-29 Frank Ch. Eigler <fche@redhat.com>
PR 3523.
* buildok/fourteen.stp, fourteen-plus.stp: Tweak & add a test.
* systemtap.base/bench.stp: Work around randomized-ordered probes.
* systemtap.base/bench.exp: Tighten output requirements.
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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.
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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.
2006-12-19 Frank Ch. Eigler <fche@redhat.com>
PR 3522.
* buildok/twentyfive.stp: New test for static $var access.
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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.
runtime/
* runtime.h (param_set_int64_t, param_get_int64_t,
param_check_int64_t): New functions to allow taking module parameters
directly as int64_t values.
testsuite/
* systemtap.base/global_init.exp, systemtap.base/global_init.stp: New
test for checking the timeliness of global initialization.
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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.
runtime/
* time.c (stp_timer_reregister): Add a global to control whether the
gettimeofday timer should restart itself, for clean shutdown.
(__stp_time_timer_callback): Check the global.
(_stp_kill_time, _stp_init_time): Set the global.
(_stp_gettimeofday_ns): Switch to preempt_enable_no_resched.
* time.c (__stp_time_cpufreq_callback): Use the cpu# from the notifier.
(_stp_init_time): No need to disable preemption around cpufreq init.
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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.
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* translate.cxx (emit_module_init): Adapt to 2.6.19 utsname().
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PR 3556.
* translate.cxx (emit_module_init): Emit code to check
system_utsname against translate-time version/machine strings.
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* 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.
2006-11-17 Frank Ch. Eigler <fche@redhat.com>
* semko/thirtysix.stp, transko/three.stp: New tests.
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* 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.
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* 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.
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* translate.cxx (var::init): Check for errors when
allocating arrays of stats, as well as other arrays.
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