--- /dev/null
+# Copyright (C) 2013-2015 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# Notes:
+# 1) This follows a Python convention for marking internal vs public functions.
+# Internal functions are prefixed with "_".
+
+# A simple testcase generator.
+#
+# Usage Notes:
+#
+# 1) The length of each parameter list must either be one, in which case the
+# same value is used for each run, or the length must match all other
+# parameters of length greater than one.
+#
+# 2) Values for parameters that vary across runs must appear in increasing
+# order. E.g. nr_gen_shlibs = { 0 1 10 } is good, { 1 0 10 } is bad.
+# This rule simplifies the code a bit, without being onerous on the user:
+# a) Report generation doesn't have to sort the output by run, it'll already
+# be sorted.
+# b) In the static object file case, the last run can be used used to generate
+# all the source files.
+#
+# TODO:
+# 1) have functions call each other within an objfile and across
+# objfiles to measure things like backtrace times
+# 2) enums
+#
+# Implementation Notes:
+#
+# 1) The implementation would be a bit simpler if we could assume Tcl 8.5.
+# Then we could use a dictionary to record the testcase instead of an array.
+# With the array we use here, there is only one copy of it and instead of
+# passing its value we pass its name. Yay Tcl. An alternative is to just
+# use a global variable.
+#
+# 2) Because these programs can be rather large, we try to avoid recompilation
+# where we can. We don't have a makefile: we could generate one but it's
+# not clear that's simpler than our chosen mechanism which is to record
+# sums of all the inputs, and detect if an input has changed that way.
+
+if ![info exists CAT_PROGRAM] {
+ set CAT_PROGRAM "/bin/cat"
+}
+
+# TODO(dje): Time md5sum vs sha1sum with our testcases.
+if ![info exists SHA1SUM_PROGRAM] {
+ set SHA1SUM_PROGRAM "/usr/bin/sha1sum"
+}
+
+namespace eval GenPerfTest {
+
+ # The default level of compilation parallelism we support.
+ set DEFAULT_PERF_TEST_COMPILE_PARALLELISM 10
+
+ # The language of the test.
+ set DEFAULT_LANGUAGE "c"
+
+ # Extra source files for the binary.
+ # This must at least include the file with main(),
+ # and each test must supply its own.
+ set DEFAULT_BINARY_EXTRA_SOURCES {}
+
+ # Header files used by generated files and extra sources.
+ set DEFAULT_BINARY_EXTRA_HEADERS {}
+
+ # Extra source files for each generated shlib.
+ # The compiler passes -DSHLIB=NNN which the source can use, for example,
+ # to define unique symbols for each shlib.
+ set DEFAULT_GEN_SHLIB_EXTRA_SOURCES {}
+
+ # Header files used by generated files and extra sources.
+ set DEFAULT_GEN_SHLIB_EXTRA_HEADERS {}
+
+ # Source files for a tail shlib, or empty if none.
+ # This library is loaded after all other shlibs (except any system shlibs
+ # like libstdc++). It is useful for exercising issues that can appear
+ # with system shlibs, without having to cope with implementation details
+ # and bugs in system shlibs. E.g., gcc pr 65669.
+ set DEFAULT_TAIL_SHLIB_SOURCES {}
+
+ # Header files for the tail shlib.
+ set DEFAULT_TAIL_SHLIB_HEADERS {}
+
+ # The number of shared libraries to create.
+ set DEFAULT_NR_GEN_SHLIBS 0
+
+ # The number of compunits in each objfile.
+ set DEFAULT_NR_COMPUNITS 1
+
+ # The number of public globals in each compunit.
+ set DEFAULT_NR_EXTERN_GLOBALS 1
+
+ # The number of static globals in each compunit.
+ set DEFAULT_NR_STATIC_GLOBALS 1
+
+ # The number of public functions in each compunit.
+ set DEFAULT_NR_EXTERN_FUNCTIONS 1
+
+ # The number of static functions in each compunit.
+ set DEFAULT_NR_STATIC_FUNCTIONS 1
+
+ # Class generation.
+ # This is only used if the selected language permits it.
+ # The class specs here are used for each compunit.
+ # Additional flexibility can be added as needed, but for now KISS.
+ #
+ # key/value list of:
+ # count: number of classes
+ # Default: 1
+ # name: list of namespaces and class name prefix
+ # E.g., { ns0 ns1 foo } -> ns0::ns1::foo_<cu#>_{0,1,...}
+ # There is no default, this value must be specified.
+ # nr_members: number of members
+ # Default: 0
+ # nr_static_members: number of static members
+ # Default: 0
+ # nr_methods: number of methods
+ # Default: 0
+ # nr_inline_methods: number of inline methods
+ # Default: 0
+ # nr_static_methods: number of static methods
+ # Default: 0
+ # nr_static_inline_methods: number of static inline methods
+ # Default: 0
+ #
+ # E.g.,
+ # class foo {};
+ # namespace ns1 { class foo {}; }
+ # namespace ns2 { class bar {}; }
+ # would be represented as
+ # {
+ # { count 1 name { foo } }
+ # { count 1 name { ns1 foo } }
+ # { count 1 name { ns2 bar } }
+ # }
+ # The actual generated class names will be
+ # cu_N_foo_0, ns1::cu_N_foo_0, ns2::cu_N_bar_0
+ # where "N" is the CU number.
+ #
+ # To keep things simple for now, all class definitions go in headers,
+ # one class per header, with non-inline method definitions going
+ # into corresponding source files.
+ set DEFAULT_CLASS_SPECS {}
+
+ # The default value for the "count" field of class_specs.
+ set DEFAULT_CLASS_COUNT 1
+
+ # The default number of members in each class.
+ set DEFAULT_CLASS_NR_MEMBERS 0
+
+ # The default number of static members in each class.
+ set DEFAULT_CLASS_NR_STATIC_MEMBERS 0
+
+ # The default number of methods in each class.
+ set DEFAULT_CLASS_NR_METHODS 0
+
+ # The default number of inline methods in each class.
+ set DEFAULT_CLASS_NR_INLINE_METHODS 0
+
+ # The default number of static methods in each class.
+ set DEFAULT_CLASS_NR_STATIC_METHODS 0
+
+ # The default number of static inline methods in each class.
+ set DEFAULT_CLASS_NR_STATIC_INLINE_METHODS 0
+
+ set header_suffixes(c) "h"
+ set header_suffixes(c++) "h"
+ set source_suffixes(c) "c"
+ set source_suffixes(c++) "cc"
+
+ # Generate .worker files that control building all the "pieces" of the
+ # testcase. This doesn't include "main" or any test-specific stuff.
+ # This mostly consists of the "bulk" (aka "crap" :-)) of the testcase to
+ # give gdb something meaty to chew on.
+ # The result is 0 for success, -1 for failure.
+ #
+ # Benchmarks generated by some of the tests are big. I mean really big.
+ # And it's a pain to build one piece at a time, we need a parallel build.
+ # To achieve this, given the framework we're working with, we need to
+ # generate arguments to pass to a parallel make. This is done by
+ # generating several files and then passing the file names to the parallel
+ # make. All of the needed info is contained in the file name, so we could
+ # do this differently, but this is pretty simple and flexible.
+
+ proc gen_worker_files { test_description_exp } {
+ global objdir PERF_TEST_COMPILE_PARALLELISM
+
+ if { [file tail $test_description_exp] != $test_description_exp } {
+ error "test description file contains directory name"
+ }
+
+ set program_name [file rootname $test_description_exp]
+ set workers_dir "$objdir/gdb.perf/workers/$program_name"
+ file mkdir $workers_dir
+
+ set nr_workers $PERF_TEST_COMPILE_PARALLELISM
+ verbose -log "gen_worker_files: $test_description_exp $nr_workers workers"
+
+ for { set i 0 } { $i < $nr_workers } { incr i } {
+ set file_name "${workers_dir}/${program_name}-${i}.worker"
+ verbose -log "gen_worker_files: Generating $file_name"
+ set f [open $file_name "w"]
+ puts $f "# DO NOT EDIT, machine generated file."
+ puts $f "# See perftest.exp:GenPerfTest::gen_worker_files."
+ close $f
+ }
+
+ return 0
+ }
+
+ # Load a perftest description.
+ # Test descriptions are used to build the input files (binary + shlibs)
+ # of one or more performance tests.
+
+ proc load_test_description { basename } {
+ global srcdir
+
+ if { [file tail $basename] != $basename } {
+ error "test description file contains directory name"
+ }
+
+ verbose -log "load_file $srcdir/gdb.perf/$basename"
+ if { [load_file $srcdir/gdb.perf/$basename] == 0 } {
+ error "Unable to load test description $basename"
+ }
+ }
+
+ # Create a testcase object for test NAME.
+ # The caller must call this as:
+ # array set my_test [GenPerfTest::init_testcase $name]
+
+ proc init_testcase { name } {
+ set testcase(name) $name
+ set testcase(language) $GenPerfTest::DEFAULT_LANGUAGE
+ set testcase(run_names) [list $name]
+ set testcase(binary_extra_sources) $GenPerfTest::DEFAULT_BINARY_EXTRA_SOURCES
+ set testcase(binary_extra_headers) $GenPerfTest::DEFAULT_BINARY_EXTRA_HEADERS
+ set testcase(gen_shlib_extra_sources) $GenPerfTest::DEFAULT_GEN_SHLIB_EXTRA_SOURCES
+ set testcase(gen_shlib_extra_headers) $GenPerfTest::DEFAULT_GEN_SHLIB_EXTRA_HEADERS
+ set testcase(tail_shlib_sources) $GenPerfTest::DEFAULT_TAIL_SHLIB_SOURCES
+ set testcase(tail_shlib_headers) $GenPerfTest::DEFAULT_TAIL_SHLIB_HEADERS
+ set testcase(nr_gen_shlibs) $GenPerfTest::DEFAULT_NR_GEN_SHLIBS
+ set testcase(nr_compunits) $GenPerfTest::DEFAULT_NR_COMPUNITS
+
+ set testcase(nr_extern_globals) $GenPerfTest::DEFAULT_NR_EXTERN_GLOBALS
+ set testcase(nr_static_globals) $GenPerfTest::DEFAULT_NR_STATIC_GLOBALS
+ set testcase(nr_extern_functions) $GenPerfTest::DEFAULT_NR_EXTERN_FUNCTIONS
+ set testcase(nr_static_functions) $GenPerfTest::DEFAULT_NR_STATIC_FUNCTIONS
+
+ set testcase(class_specs) $GenPerfTest::DEFAULT_CLASS_SPECS
+
+ # The location of this file drives the location of all other files.
+ # The choice is derived from standard_output_file. We don't use it
+ # because of the parallel build support, we want each worker's log/sum
+ # files to go in different directories, but we don't want their output
+ # to go in different directories.
+ # N.B. The value here must be kept in sync with Makefile.in.
+ global objdir
+ set name_no_spaces [_convert_spaces $name]
+ set testcase(binfile) "$objdir/gdb.perf/outputs/$name_no_spaces/$name_no_spaces"
+
+ return [array get testcase]
+ }
+
+ proc _verify_parameter_lengths { self_var } {
+ upvar 1 $self_var self
+ set params {
+ binary_extra_sources binary_extra_headers
+ gen_shlib_extra_sources gen_shlib_extra_headers
+ tail_shlib_sources tail_shlib_headers
+ nr_gen_shlibs nr_compunits
+ nr_extern_globals nr_static_globals
+ nr_extern_functions nr_static_functions
+ class_specs
+ }
+ set nr_runs [llength $self(run_names)]
+ foreach p $params {
+ set n [llength $self($p)]
+ if { $n > 1 } {
+ if { $n != $nr_runs } {
+ error "Bad number of values for parameter $p"
+ }
+ set values $self($p)
+ for { set i 0 } { $i < $n - 1 } { incr i } {
+ if { [lindex $values $i] > [lindex $values [expr $i + 1]] } {
+ error "Values of parameter $p are not increasing"
+ }
+ }
+ }
+ }
+ }
+
+ # Verify the class_specs parameter.
+
+ proc _verify_class_specs { self_var } {
+ upvar 1 $self_var self
+ set nr_runs [llength $self(run_names)]
+ for { set run_nr 0 } { $run_nr < $nr_runs } { incr run_nr } {
+ set class_specs [_get_param $self(class_specs) $run_nr]
+ foreach { spec } $class_specs {
+ if { [llength $spec] % 2 != 0 } {
+ error "Uneven number of values in class spec: $spec"
+ }
+ foreach { key value } $spec {
+ switch -exact -- $key {
+ name { }
+ count -
+ nr_members - nr_static_members -
+ nr_methods - nr_static_methods -
+ nr_inline_methods - nr_static_inline_methods
+ {
+ if ![string is integer $value] {
+ error "Non-integer value $value for key $key in class_specs: $class_specs"
+ }
+ }
+ default {
+ error "Unrecognized key $key in class_specs: $class_specs"
+ }
+ }
+ }
+ }
+ }
+ }
+
+ # Verify the testcase is valid (as best we can, this isn't exhaustive).
+
+ proc _verify_testcase { self_var } {
+ upvar 1 $self_var self
+ _verify_parameter_lengths self
+ _verify_class_specs self
+
+ # Each test must supply its own main(). We don't check for main here,
+ # but we do verify the test supplied something.
+ if { [llength $self(binary_extra_sources)] == 0 } {
+ error "Missing value for binary_extra_sources"
+ }
+ }
+
+ # Return the value of parameter PARAM for run RUN_NR.
+
+ proc _get_param { param run_nr } {
+ if { [llength $param] == 1 } {
+ # Since PARAM may be a list of lists we need to use lindex. This
+ # also works for scalars (scalars are degenerate lists).
+ return [lindex $param 0]
+ }
+ return [lindex $param $run_nr]
+ }
+
+ # Return non-zero if all files (binaries + shlibs) can be compiled from
+ # one set of object files. This is a simple optimization to speed up
+ # test build times. This happens if the only variation among runs is
+ # nr_gen_shlibs or nr_compunits.
+
+ proc _static_object_files_p { self_var } {
+ upvar 1 $self_var self
+ # These values are either scalars, or can vary across runs but don't
+ # affect whether we can share the generated object objects between
+ # runs.
+ set static_object_file_params {
+ name language run_names nr_gen_shlibs nr_compunits
+ binary_extra_sources gen_shlib_extra_sources tail_shlib_sources
+ }
+ foreach name [array names self] {
+ if { [lsearch $static_object_file_params $name] < 0 } {
+ # name is not in static_object_file_params.
+ if { [llength $self($name)] > 1 } {
+ # The user could provide a list that is all the same value,
+ # so check for that.
+ set first_value [lindex $self($name) 0]
+ foreach elm [lrange $self($name) 1 end] {
+ if { $elm != $first_value } {
+ return 0
+ }
+ }
+ }
+ }
+ }
+ return 1
+ }
+
+ # Return non-zero if classes are enabled.
+
+ proc _classes_enabled_p { self_var run_nr } {
+ upvar 1 $self_var self
+ set class_specs [_get_param $self(class_specs) $run_nr]
+ return [expr [llength $class_specs] > 0]
+ }
+
+ # Spaces in file names are a pain, remove them.
+ # They appear if the user puts spaces in the test name or run name.
+
+ proc _convert_spaces { file_name } {
+ return [regsub -all " " $file_name "-"]
+ }
+
+ # Return the compilation flags for the test.
+
+ proc _compile_options { self_var } {
+ upvar 1 $self_var self
+ set result {debug}
+ switch $self(language) {
+ c++ {
+ lappend result "c++"
+ }
+ }
+ return $result
+ }
+
+ # Return the path to put source/object files in for run number RUN_NR.
+
+ proc _make_object_dir_name { self_var static run_nr } {
+ upvar 1 $self_var self
+ # Note: The output directory already includes the name of the test
+ # description file.
+ set bindir [file dirname $self(binfile)]
+ # Put the pieces in a subdirectory, there are a lot of them.
+ if $static {
+ return "$bindir/pieces"
+ } else {
+ set run_name [_convert_spaces [lindex $self(run_names) $run_nr]]
+ return "$bindir/pieces/$run_name"
+ }
+ }
+
+ # RUN_NR is ignored if STATIC is non-zero.
+ # SO_NR is the shlib number or "" for the binary.
+ # CU_NR is either the compilation unit number or "main".
+
+ proc _make_header_basename { self_var static run_nr so_nr cu_nr } {
+ upvar 1 $self_var self
+ set header_suffix $GenPerfTest::header_suffixes($self(language))
+ if { !$static } {
+ set run_name [_get_param $self(run_names) $run_nr]
+ if { "$so_nr" != "" } {
+ set header_name "${run_name}-lib${so_nr}-cu${cu_nr}.$header_suffix"
+ } else {
+ set header_name "${run_name}-cu${cu_nr}.$header_suffix"
+ }
+ } else {
+ if { "$so_nr" != "" } {
+ set header_name "lib${so_nr}-cu${cu_nr}.$header_suffix"
+ } else {
+ set header_name "cu${cu_nr}.$header_suffix"
+ }
+ }
+ return "[_convert_spaces $header_name]"
+ }
+
+ # RUN_NR is ignored if STATIC is non-zero.
+ # SO_NR is the shlib number or "" for the binary.
+ # CU_NR is either the compilation unit number or "main".
+
+ proc _make_header_name { self_var static run_nr so_nr cu_nr } {
+ upvar 1 $self_var self
+ set header_name [_make_header_basename self $static $run_nr $so_nr $cu_nr]
+ return "[_make_object_dir_name self $static $run_nr]/$header_name"
+ }
+
+ # RUN_NR is ignored if STATIC is non-zero.
+ # SO_NR is the shlib number or "" for the binary.
+ # CU_NR is either the compilation unit number or "main".
+
+ proc _make_source_basename { self_var static run_nr so_nr cu_nr } {
+ upvar 1 $self_var self
+ set source_suffix $GenPerfTest::source_suffixes($self(language))
+ if { !$static } {
+ set run_name [_get_param $self(run_names) $run_nr]
+ if { "$so_nr" != "" } {
+ set source_name "${run_name}-lib${so_nr}-cu${cu_nr}.$source_suffix"
+ } else {
+ set source_name "${run_name}-cu${cu_nr}.$source_suffix"
+ }
+ } else {
+ if { "$so_nr" != "" } {
+ set source_name "lib${so_nr}-cu${cu_nr}.$source_suffix"
+ } else {
+ set source_name "cu${cu_nr}.$source_suffix"
+ }
+ }
+ return "[_convert_spaces $source_name]"
+ }
+
+ # RUN_NR is ignored if STATIC is non-zero.
+ # SO_NR is the shlib number or "" for the binary.
+ # CU_NR is either the compilation unit number or "main".
+
+ proc _make_source_name { self_var static run_nr so_nr cu_nr } {
+ upvar 1 $self_var self
+ set source_name [_make_source_basename self $static $run_nr $so_nr $cu_nr]
+ return "[_make_object_dir_name self $static $run_nr]/$source_name"
+ }
+
+ # Generated object files get put in the same directory as their source.
+ # WARNING: This means that we can't do parallel compiles from the same
+ # source file, they have to have different names.
+
+ proc _make_binary_object_name { self_var static run_nr cu_nr } {
+ upvar 1 $self_var self
+ set source_name [_make_source_name self $static $run_nr "" $cu_nr]
+ return [file rootname $source_name].o
+ }
+
+ # Return the list of source/object files for the binary.
+ # This is the source files specified in test param binary_extra_sources as
+ # well as the names of all the object file "pieces".
+ # STATIC is the value of _static_object_files_p for the test.
+
+ proc _make_binary_input_file_names { self_var static run_nr } {
+ upvar 1 $self_var self
+ global srcdir subdir
+ set nr_compunits [_get_param $self(nr_compunits) $run_nr]
+ set result {}
+ foreach source [_get_param $self(binary_extra_sources) $run_nr] {
+ lappend result "$srcdir/$subdir/$source"
+ }
+ for { set cu_nr 0 } { $cu_nr < $nr_compunits } { incr cu_nr } {
+ lappend result [_make_binary_object_name self $static $run_nr $cu_nr]
+ }
+ return $result
+ }
+
+ proc _make_binary_name { self_var run_nr } {
+ upvar 1 $self_var self
+ set run_name [_get_param $self(run_names) $run_nr]
+ set exe_name "$self(binfile)-[_convert_spaces ${run_name}]"
+ return $exe_name
+ }
+
+ # SO_NAME is either a shlib number or "tail".
+
+ proc _make_shlib_name { self_var static run_nr so_name } {
+ upvar 1 $self_var self
+ if { !$static } {
+ set run_name [_get_param $self(run_names) $run_nr]
+ set lib_name "$self(name)-${run_name}-lib${so_name}.so"
+ } else {
+ set lib_name "$self(name)-lib${so_name}.so"
+ }
+ set output_dir [file dirname $self(binfile)]
+ return "[_make_object_dir_name self $static $run_nr]/[_convert_spaces $lib_name]"
+ }
+
+ proc _create_file { self_var path } {
+ upvar 1 $self_var self
+ verbose -log "Creating file: $path"
+ set f [open $path "w"]
+ return $f
+ }
+
+ proc _write_intro { self_var f } {
+ upvar 1 $self_var self
+ puts $f "// DO NOT EDIT, machine generated file."
+ puts $f "// See perftest.exp:GenPerfTest."
+ }
+
+ proc _write_includes { self_var f includes } {
+ upvar 1 $self_var self
+ if { [llength $includes] > 0 } {
+ puts $f ""
+ }
+ foreach i $includes {
+ switch -glob -- $i {
+ "<*>" {
+ puts $f "#include $i"
+ }
+ default {
+ puts $f "#include \"$i\""
+ }
+ }
+ }
+ }
+
+ proc _make_header_macro { name c } {
+ return [string toupper "${name}_${c}"]
+ }
+
+ proc _write_static_globals { self_var f run_nr } {
+ upvar 1 $self_var self
+ puts $f ""
+ set nr_static_globals [_get_param $self(nr_static_globals) $run_nr]
+ # Rather than parameterize the number of const/non-const globals,
+ # and their types, we keep it simple for now. Even the number of
+ # bss/non-bss globals may be useful; later, if warranted.
+ for { set i 0 } { $i < $nr_static_globals } { incr i } {
+ if { $i % 2 == 0 } {
+ set const "const "
+ } else {
+ set const ""
+ }
+ puts $f "static ${const}int static_global_$i = $i;"
+ }
+ }
+
+ # ID is "" for the binary, and a unique symbol prefix for each SO.
+
+ proc _write_extern_globals { self_var f run_nr id cu_nr } {
+ upvar 1 $self_var self
+ puts $f ""
+ set nr_extern_globals [_get_param $self(nr_extern_globals) $run_nr]
+ # Rather than parameterize the number of const/non-const globals,
+ # and their types, we keep it simple for now. Even the number of
+ # bss/non-bss globals may be useful; later, if warranted.
+ for { set i 0 } { $i < $nr_extern_globals } { incr i } {
+ if { $i % 2 == 0 } {
+ set const "const "
+ } else {
+ set const ""
+ }
+ puts $f "${const}int ${id}global_${cu_nr}_$i = $cu_nr * 1000 + $i;"
+ }
+ }
+
+ proc _write_static_functions { self_var f run_nr } {
+ upvar 1 $self_var self
+ set nr_static_functions [_get_param $self(nr_static_functions) $run_nr]
+ for { set i 0 } { $i < $nr_static_functions } { incr i } {
+ puts $f ""
+ puts $f "static void"
+ puts $f "static_function_$i (void)"
+ puts $f "{"
+ puts $f "}"
+ }
+ }
+
+ # ID is "" for the binary, and a unique symbol prefix for each SO.
+
+ proc _write_extern_functions { self_var f run_nr id cu_nr } {
+ upvar 1 $self_var self
+ set nr_extern_functions [_get_param $self(nr_extern_functions) $run_nr]
+ for { set i 0 } { $i < $nr_extern_functions } { incr i } {
+ puts $f ""
+ puts $f "void"
+ puts $f "${id}function_${cu_nr}_$i (void)"
+ puts $f "{"
+ puts $f "}"
+ }
+ }
+
+ proc _get_class_spec { spec name } {
+ foreach { key value } $spec {
+ if { $key == $name } {
+ return $value
+ }
+ }
+ switch $name {
+ count {
+ return $GenPerfTest::DEFAULT_CLASS_COUNT
+ }
+ nr_members {
+ return $GenPerfTest::DEFAULT_CLASS_NR_MEMBERS
+ }
+ nr_static_members {
+ return $GenPerfTest::DEFAULT_CLASS_NR_STATIC_MEMBERS
+ }
+ nr_methods {
+ return $GenPerfTest::DEFAULT_CLASS_NR_METHODS
+ }
+ nr_inline_methods {
+ return $GenPerfTest::DEFAULT_CLASS_NR_INLINE_METHODS
+ }
+ nr_static_methods {
+ return $GenPerfTest::DEFAULT_CLASS_NR_STATIC_METHODS
+ }
+ nr_static_inline_methods {
+ return $GenPerfTest::DEFAULT_CLASS_NR_STATIC_INLINE_METHODS
+ }
+ default {
+ error "required class-spec not present: $name"
+ }
+ }
+ }
+
+ # SO_NR is the shlib number or "" for the binary.
+ # CU_NR is either the compilation unit number or "main".
+ # NAME is the "name" field from the class spec, which is
+ # { ns0 ns1 ... nsN class_name }.
+ # C is the iteration number, from the "count" field from the class spec.
+
+ proc _make_class_name { so_nr cu_nr name c } {
+ set class_name [lindex $name [expr [llength $name] - 1]]
+ if { "$so_nr" != "" } {
+ set prefix "shlib${so_nr}_"
+ } else {
+ set prefix ""
+ }
+ return "${prefix}cu_${cu_nr}_${class_name}_${c}"
+ }
+
+ proc _make_namespace_name { name } {
+ if { "$name" == "anonymous" } {
+ return ""
+ }
+ return $name
+ }
+
+ proc _write_class_definitions { self_var f static run_nr so_nr cu_nr } {
+ upvar 1 $self_var self
+ set class_specs [_get_param $self(class_specs) $run_nr]
+ foreach spec $class_specs {
+ set count [_get_class_spec $spec count]
+ set name [_get_class_spec $spec name]
+ set nr_members [_get_class_spec $spec nr_members]
+ set nr_static_members [_get_class_spec $spec nr_static_members]
+ set nr_methods [_get_class_spec $spec nr_methods]
+ set nr_static_methods [_get_class_spec $spec nr_static_methods]
+ set depth [expr [llength $name] - 1]
+ for { set c 0 } { $c < $count } { incr c } {
+ puts $f ""
+ for { set i 0 } { $i < $depth } { incr i } {
+ puts $f "namespace [_make_namespace_name [lindex $name $i]]"
+ puts $f "\{"
+ puts $f ""
+ }
+ set class_name [_make_class_name $so_nr $cu_nr $name $c]
+ puts $f "class $class_name"
+ puts $f "\{"
+ puts $f " public:"
+ for { set i 0 } { $i < $nr_members } { incr i } {
+ puts $f " int member_$i;"
+ }
+ for { set i 0 } { $i < $nr_static_members } { incr i } {
+ # Rather than parameterize the number of const/non-const
+ # members, and their types, we keep it simple for now.
+ if { $i % 2 == 0 } {
+ puts $f " static const int static_member_$i = $i;"
+ } else {
+ puts $f " static int static_member_$i;"
+ }
+ }
+ for { set i 0 } { $i < $nr_methods } { incr i } {
+ puts $f " void method_$i (void);"
+ }
+ for { set i 0 } { $i < $nr_static_methods } { incr i } {
+ puts $f " static void static_method_$i (void);"
+ }
+ _write_inline_methods self $f $so_nr $cu_nr $spec $c
+ _write_static_inline_methods self $f $so_nr $cu_nr $spec $c
+ puts $f "\};"
+ for { set i [expr $depth - 1] } { $i >= 0 } { incr i -1 } {
+ puts $f ""
+ puts $f "\} // [lindex $name $i]"
+ }
+ }
+ }
+ }
+
+ proc _write_inline_methods { self_var f so_nr cu_nr spec c } {
+ upvar 1 $self_var self
+ set name [_get_class_spec $spec name]
+ set nr_inline_methods [_get_class_spec $spec nr_inline_methods]
+ for { set i 0 } { $i < $nr_inline_methods } { incr i } {
+ puts $f " void inline_method_$i (void) { }"
+ }
+ }
+
+ proc _write_static_inline_methods { self_var f so_nr cu_nr spec c } {
+ upvar 1 $self_var self
+ set name [_get_class_spec $spec name]
+ set nr_static_inline_methods [_get_class_spec $spec nr_static_inline_methods]
+ for { set i 0 } { $i < $nr_static_inline_methods } { incr i } {
+ puts $f " static void static_inline_method_$i (void) { }"
+ }
+ }
+
+ proc _write_class_implementations { self_var f static run_nr so_nr cu_nr } {
+ upvar 1 $self_var self
+ set class_specs [_get_param $self(class_specs) $run_nr]
+ foreach spec $class_specs {
+ set count [_get_class_spec $spec count]
+ set name [_get_class_spec $spec name]
+ set depth [expr [llength $name] - 1]
+ for { set c 0 } { $c < $count } { incr c } {
+ for { set i 0 } { $i < $depth } { incr i } {
+ puts $f ""
+ puts $f "namespace [_make_namespace_name [lindex $name $i]]"
+ puts $f "\{"
+ }
+ _write_static_members self $f $so_nr $cu_nr $spec $c
+ _write_methods self $f $so_nr $cu_nr $spec $c
+ _write_static_methods self $f $so_nr $cu_nr $spec $c
+ for { set i [expr $depth - 1] } { $i >= 0 } { incr i -1 } {
+ puts $f ""
+ puts $f "\} // [lindex $name $i]"
+ }
+ }
+ }
+ }
+
+ proc _write_static_members { self_var f so_nr cu_nr spec c } {
+ upvar 1 $self_var self
+ set name [_get_class_spec $spec name]
+ set nr_static_members [_get_class_spec $spec nr_static_members]
+ set class_name [_make_class_name $so_nr $cu_nr $name $c]
+ puts $f ""
+ # Rather than parameterize the number of const/non-const
+ # members, and their types, we keep it simple for now.
+ for { set i 0 } { $i < $nr_static_members } { incr i } {
+ if { $i % 2 == 0 } {
+ # Static const members are initialized inline.
+ } else {
+ puts $f "int ${class_name}::static_member_$i = $i;"
+ }
+ }
+ }
+
+ proc _write_methods { self_var f so_nr cu_nr spec c } {
+ upvar 1 $self_var self
+ set name [_get_class_spec $spec name]
+ set nr_methods [_get_class_spec $spec nr_methods]
+ set class_name [_make_class_name $so_nr $cu_nr $name $c]
+ for { set i 0 } { $i < $nr_methods } { incr i } {
+ puts $f ""
+ puts $f "void"
+ puts $f "${class_name}::method_$i (void)"
+ puts $f "{"
+ puts $f "}"
+ }
+ }
+
+ proc _write_static_methods { self_var f so_nr cu_nr spec c } {
+ upvar 1 $self_var self
+ set name [_get_class_spec $spec name]
+ set nr_static_methods [_get_class_spec $spec nr_static_methods]
+ set class_name [_make_class_name $so_nr $cu_nr $name $c]
+ for { set i 0 } { $i < $nr_static_methods } { incr i } {
+ puts $f ""
+ puts $f "void"
+ puts $f "${class_name}::static_method_$i (void)"
+ puts $f "{"
+ puts $f "}"
+ }
+ }
+
+ proc _gen_compunit_header { self_var static run_nr so_nr cu_nr } {
+ upvar 1 $self_var self
+ set header_file [_make_header_name self $static $run_nr $so_nr $cu_nr]
+ set f [_create_file self $header_file]
+ _write_intro self $f
+ set header_macro [_make_header_macro "HEADER_CU" $cu_nr]
+ puts $f ""
+ puts $f "#ifndef $header_macro"
+ puts $f "#define $header_macro"
+ if [_classes_enabled_p self $run_nr] {
+ _write_class_definitions self $f $static $run_nr $so_nr $cu_nr
+ }
+ puts $f ""
+ puts $f "#endif // $header_macro"
+ close $f
+ return $header_file
+ }
+
+ proc _gen_binary_compunit_source { self_var static run_nr cu_nr } {
+ upvar 1 $self_var self
+ set source_file [_make_source_name self $static $run_nr "" $cu_nr]
+ set f [_create_file self $source_file]
+ _write_intro self $f
+ _write_includes self $f [_get_param $self(binary_extra_headers) $run_nr]
+ set header_file [_make_header_basename self $static $run_nr "" $cu_nr]
+ puts $f "#include \"$header_file\""
+ _write_static_globals self $f $run_nr
+ _write_extern_globals self $f $run_nr "" $cu_nr
+ _write_static_functions self $f $run_nr
+ _write_extern_functions self $f $run_nr "" $cu_nr
+ if [_classes_enabled_p self $run_nr] {
+ _write_class_implementations self $f $static $run_nr "" $cu_nr
+ }
+ close $f
+ return $source_file
+ }
+
+ # Generate the sources for the pieces of the binary.
+ # The result is a list of source file names and accompanying object file
+ # names. The pieces are split across workers.
+ # E.g., with 10 workers the result for worker 0 is
+ # { { source0 header0 object0 } { source10 header10 object10 } ... }
+
+ proc _gen_binary_source { self_var worker_nr static run_nr } {
+ upvar 1 $self_var self
+ verbose -log "GenPerfTest::_gen_binary_source worker $worker_nr run $run_nr, started [timestamp -format %c]"
+ set nr_compunits [_get_param $self(nr_compunits) $run_nr]
+ global PERF_TEST_COMPILE_PARALLELISM
+ set nr_workers $PERF_TEST_COMPILE_PARALLELISM
+ set result {}
+ for { set cu_nr $worker_nr } { $cu_nr < $nr_compunits } { incr cu_nr $nr_workers } {
+ set header_file [_gen_compunit_header self $static $run_nr "" $cu_nr]
+ set source_file [_gen_binary_compunit_source self $static $run_nr $cu_nr]
+ set object_file [_make_binary_object_name self $static $run_nr $cu_nr]
+ lappend result [list $source_file $header_file $object_file]
+ }
+ verbose -log "GenPerfTest::_gen_binary_source worker $worker_nr run $run_nr, done [timestamp -format %c]"
+ return $result
+ }
+
+ proc _gen_shlib_compunit_source { self_var static run_nr so_nr cu_nr } {
+ upvar 1 $self_var self
+ set source_file [_make_source_name self $static $run_nr $so_nr $cu_nr]
+ set f [_create_file self $source_file]
+ _write_intro self $f
+ _write_includes self $f [_get_param $self(gen_shlib_extra_headers) $run_nr]
+ set header_file [_make_header_basename self $static $run_nr $so_nr $cu_nr]
+ puts $f "#include \"$header_file\""
+ _write_static_globals self $f $run_nr
+ _write_extern_globals self $f $run_nr "shlib${so_nr}_" $cu_nr
+ _write_static_functions self $f $run_nr
+ _write_extern_functions self $f $run_nr "shlib${so_nr}_" $cu_nr
+ if [_classes_enabled_p self $run_nr] {
+ _write_class_implementations self $f $static $run_nr $so_nr $cu_nr
+ }
+ close $f
+ return $source_file
+ }
+
+ # CU_NAME is a name from gen_shlib_extra_sources or tail_shlib_sources.
+
+ proc _make_shlib_common_source_name { self_var static run_nr so_nr cu_name } {
+ upvar 1 $self_var self
+ if { !$static } {
+ set run_name [_get_param $self(run_names) $run_nr]
+ set source_name "${run_name}-lib${so_nr}-${cu_name}"
+ } else {
+ set source_name "lib${so_nr}-${cu_name}"
+ }
+ return "[_make_object_dir_name self $static $run_nr]/[_convert_spaces $source_name]"
+ }
+
+ # N.B. gdb_compile_shlib doesn't support parallel builds of shlibs from
+ # common sources: the .o file path will be the same across all shlibs.
+ # gen_shlib_extra_sources may be common across all shlibs but they're each
+ # compiled with -DSHLIB=$SHLIB so we need different .o files for each
+ # shlib, and therefore we need different source files for each shlib.
+ # If this turns out to be too cumbersome we can augment gdb_compile_shlib.
+
+ proc _gen_shlib_common_source { self_var static run_nr so_nr source_name } {
+ upvar 1 $self_var self
+ global srcdir
+ set source_file [_make_shlib_common_source_name self $static $run_nr $so_nr $source_name]
+ file copy -force "$srcdir/gdb.perf/$source_name" ${source_file}
+ return $source_file
+ }
+
+ # Generate the sources for a shared library.
+ # The result is a list of source and header file names.
+ # E.g., { { source0 source1 ... common0 ... } { header0 header1 ... } }
+
+ proc _gen_shlib_source { self_var static run_nr so_nr } {
+ upvar 1 $self_var self
+ verbose -log "GenPerfTest::_gen_shlib_source run $run_nr so $so_nr, started [timestamp -format %c]"
+ set headers {}
+ set sources {}
+ set nr_compunits [_get_param $self(nr_compunits) $run_nr]
+ for { set cu_nr 0 } { $cu_nr < $nr_compunits } { incr cu_nr } {
+ lappend headers [_gen_compunit_header self $static $run_nr $so_nr $cu_nr]
+ lappend sources [_gen_shlib_compunit_source self $static $run_nr $so_nr $cu_nr]
+ }
+ foreach source_name [_get_param $self(gen_shlib_extra_sources) $run_nr] {
+ lappend sources [_gen_shlib_common_source self $static $run_nr $so_nr $source_name]
+ }
+ verbose -log "GenPerfTest::_gen_shlib_source run $run_nr so $so_nr, done [timestamp -format %c]"
+ return [list $sources $headers]
+ }
+
+ # Write Tcl array ARRAY_NAME to F.
+
+ proc _write_tcl_array { self_var f array_name } {
+ upvar 1 $self_var self
+ if { "$array_name" != "$self_var" } {
+ global $array_name
+ }
+ puts $f "== $array_name =="
+ foreach { name value } [array get $array_name] {
+ puts $f "$name: $value"
+ }
+ }
+
+ # Write global Tcl state used for compilation to F.
+ # If anything changes we want to recompile.
+
+ proc _write_tcl_state { self_var f dest } {
+ upvar 1 $self_var self
+
+ # TODO(dje): gdb_default_target_compile references a lot of global
+ # state. Can we capture it all? For now these are the important ones.
+
+ set vars { CC_FOR_TARGET CXX_FOR_TARGET CFLAGS_FOR_TARGET }
+ foreach v $vars {
+ global $v
+ if [info exists $v] {
+ eval set value $$v
+ puts $f "$v: $value"
+ }
+ }
+
+ puts $f ""
+ _write_tcl_array self $f target_info
+ puts $f ""
+ _write_tcl_array self $f board_info
+ }
+
+ # Write all sideband non-file inputs, as well as OPTIONS to INPUTS_FILE.
+ # If anything changes we want to recompile.
+
+ proc _write_inputs_file { self_var dest inputs_file options } {
+ upvar 1 $self_var self
+ global env
+ set f [open $inputs_file "w"]
+ _write_tcl_array self $f self
+ puts $f ""
+ puts $f "options: $options"
+ puts $f "PATH: [getenv PATH]"
+ puts $f ""
+ _write_tcl_state self $f $dest
+ close $f
+ }
+
+ # Generate the sha1sum of all the inputs.
+ # The result is a list of { error_code text }.
+ # Upon success error_code is zero and text is the sha1sum.
+ # Otherwise, error_code is non_zero and text is the error message.
+
+ proc _gen_sha1sum_for_inputs { source_files header_files inputs } {
+ global srcdir subdir CAT_PROGRAM SHA1SUM_PROGRAM
+ set header_paths ""
+ foreach f $header_files {
+ switch -glob -- $f {
+ "<*>" {
+ # skip
+ }
+ "*gdb.perf/outputs/*" {
+ # in build tree
+ append header_paths " $f"
+ }
+ default {
+ append header_paths " $srcdir/$subdir/$f"
+ }
+ }
+ }
+ verbose -log "_gen_sha1sum_for_inputs: summing $source_files $header_paths $inputs"
+ set catch_result [catch "exec $CAT_PROGRAM $source_files $header_paths $inputs | $SHA1SUM_PROGRAM" output]
+ return [list $catch_result $output]
+ }
+
+ # Return the contents of TEXT_FILE.
+ # It is assumed TEXT_FILE exists and is readable.
+ # This is used for reading files containing sha1sums, the
+ # last newline is removed.
+
+ proc _read_file { text_file } {
+ set f [open $text_file "r"]
+ set result [read -nonewline $f]
+ close $f
+ return $result
+ }
+
+ # Write TEXT to TEXT_FILE.
+ # It is assumed TEXT_FILE can be opened/created and written to.
+
+ proc _write_file { text_file text } {
+ set f [open $text_file "w"]
+ puts $f $text
+ close $f
+ }
+
+ # Wrapper on gdb_compile* that computes sha1sums of inputs to decide
+ # whether the compile is needed.
+ # The result is the result of gdb_compile*: "" == success, otherwise
+ # a compilation error occurred and the output is an error message.
+ # This doesn't take all inputs into account, just the useful ones.
+ # As an extension (or simplification) on gdb_compile*, if TYPE is
+ # shlib then call gdb_compile_shlib, otherwise call gdb_compile.
+ # Other possibilities *could* be handled this way, e.g., pthreads. TBD.
+
+ proc _perftest_compile { self_var source_files header_files dest type options } {
+ upvar 1 $self_var self
+ verbose -log "_perftest_compile $source_files $header_files $dest $type $options"
+ # To keep things simple, we put all non-file inputs into a file and
+ # then cat all input files through sha1sum.
+ set sha1sum_file ${dest}.sha1sum
+ set sha1new_file ${dest}.sha1new
+ set inputs_file ${dest}.inputs
+ global srcdir subdir
+ set all_options $options
+ lappend all_options "incdir=$srcdir/$subdir"
+ _write_inputs_file self $dest $inputs_file $all_options
+ set sha1sum [_gen_sha1sum_for_inputs $source_files $header_files $inputs_file]
+ if { [lindex $sha1sum 0] != 0 } {
+ return "sha1sum generation error: [lindex $sha1sum 1]"
+ }
+ set sha1sum [lindex $sha1sum 1]
+ if ![file exists $dest] {
+ file delete $sha1sum_file
+ }
+ if [file exists $sha1sum_file] {
+ set last_sha1sum [_read_file $sha1sum_file]
+ verbose -log "last: $last_sha1sum, new: $sha1sum"
+ if { $sha1sum == $last_sha1sum } {
+ verbose -log "using existing build for $dest"
+ return ""
+ }
+ }
+ # No such luck, we need to compile.
+ file delete $sha1sum_file
+ if { $type == "shlib" } {
+ set result [gdb_compile_shlib $source_files $dest $all_options]
+ } else {
+ set result [gdb_compile $source_files $dest $type $all_options]
+ }
+ if { $result == "" } {
+ _write_file $sha1sum_file $sha1sum
+ verbose -log "wrote sha1sum: $sha1sum"
+ }
+ return $result
+ }
+
+ proc _compile_binary_pieces { self_var worker_nr static run_nr } {
+ upvar 1 $self_var self
+ set compile_options [_compile_options self]
+ set nr_compunits [_get_param $self(nr_compunits) $run_nr]
+ set extra_headers [_get_param $self(binary_extra_headers) $run_nr]
+ global PERF_TEST_COMPILE_PARALLELISM
+ set nr_workers $PERF_TEST_COMPILE_PARALLELISM
+ # Generate the source first so we can more easily measure how long that
+ # takes. [It doesn't take hardly any time at all, relative to the time
+ # it takes to compile it, but this will provide numbers to show that.]
+ set todo_list [_gen_binary_source self $worker_nr $static $run_nr]
+ verbose -log "GenPerfTest::_compile_binary_pieces worker $worker_nr run $run_nr, started [timestamp -format %c]"
+ foreach elm $todo_list {
+ set source_file [lindex $elm 0]
+ set header_file [lindex $elm 1]
+ set object_file [lindex $elm 2]
+ set all_header_files $extra_headers
+ lappend all_header_files $header_file
+ set compile_result [_perftest_compile self $source_file $all_header_files $object_file object $compile_options]
+ if { $compile_result != "" } {
+ verbose -log "GenPerfTest::_compile_binary_pieces worker $worker_nr run $run_nr, failed [timestamp -format %c]"
+ verbose -log $compile_result
+ return -1
+ }
+ }
+ verbose -log "GenPerfTest::_compile_binary_pieces worker $worker_nr run $run_nr, done [timestamp -format %c]"
+ return 0
+ }
+
+ # Helper function to compile the pieces of a shlib.
+ # Note: gdb_compile_shlib{,_pthreads} don't support first building object
+ # files and then building the shlib. Therefore our hands are tied, and we
+ # just build the shlib in one step. This is less of a parallelization
+ # problem if there are multiple shlibs: Each worker can build a different
+ # shlib. If this proves to be a problem in practice we can enhance
+ # gdb_compile_shlib* then.
+
+ proc _compile_shlib { self_var static run_nr so_nr } {
+ upvar 1 $self_var self
+ set files [_gen_shlib_source self $static $run_nr $so_nr]
+ set source_files [lindex $files 0]
+ set header_files [lindex $files 1]
+ set extra_headers [_get_param $self(gen_shlib_extra_headers) $run_nr]
+ set shlib_file [_make_shlib_name self $static $run_nr $so_nr]
+ set compile_options "[_compile_options self] additional_flags=-DSHLIB=$so_nr"
+ set all_header_files $header_files
+ append all_header_files $extra_headers
+ set compile_result [_perftest_compile self $source_files $all_header_files $shlib_file shlib $compile_options]
+ if { $compile_result != "" } {
+ verbose -log "_compile_shlib failed: $compile_result"
+ return -1
+ }
+ return 0
+ }
+
+ proc _gen_tail_shlib_source { self_var static run_nr } {
+ upvar 1 $self_var self
+ verbose -log "GenPerfTest::_gen_tail_shlib_source run $run_nr"
+ set source_files [_get_param $self(tail_shlib_sources) $run_nr]
+ if { [llength $source_files] == 0 } {
+ return ""
+ }
+ set result ""
+ foreach source_name $source_files {
+ lappend result [_gen_shlib_common_source self $static $run_nr tail $source_name]
+ }
+ return $result
+ }
+
+ proc _make_tail_shlib_name { self_var static run_nr } {
+ upvar 1 $self_var self
+ set source_files [_get_param $self(tail_shlib_sources) $run_nr]
+ if { [llength $source_files] == 0 } {
+ return ""
+ }
+ return [_make_shlib_name self $static $run_nr "tail"]
+ }
+
+ # Helper function to compile the tail shlib, if it's specified.
+
+ proc _compile_tail_shlib { self_var static run_nr } {
+ upvar 1 $self_var self
+ set source_files [_gen_tail_shlib_source self $static $run_nr]
+ if { [llength $source_files] == 0 } {
+ return 0
+ }
+ set header_files [_get_param $self(tail_shlib_headers) $run_nr]
+ set shlib_file [_make_tail_shlib_name self $static $run_nr]
+ set compile_options [_compile_options self]
+ set compile_result [_perftest_compile self $source_files $header_files $shlib_file shlib $compile_options]
+ if { $compile_result != "" } {
+ verbose -log "_compile_tail_shlib failed: $compile_result"
+ return -1
+ }
+ verbose -log "_compile_tail_shlib failed: succeeded"
+ return 0
+ }
+
+ # Compile the pieces of the binary and possible shlibs for the test.
+ # The result is 0 for success, -1 for failure.
+
+ proc _compile_pieces { self_var worker_nr } {
+ upvar 1 $self_var self
+ global PERF_TEST_COMPILE_PARALLELISM
+ set nr_workers $PERF_TEST_COMPILE_PARALLELISM
+ set nr_runs [llength $self(run_names)]
+ set static [_static_object_files_p self]
+ verbose -log "_compile_pieces: static flag: $static"
+ file mkdir "[file dirname $self(binfile)]/pieces"
+ if $static {
+ # All the generated pieces look the same (run over run) so just
+ # build all the shlibs of the last run (which is the largest).
+ set last_run [expr $nr_runs - 1]
+ set nr_gen_shlibs [_get_param $self(nr_gen_shlibs) $last_run]
+ set object_dir [_make_object_dir_name self $static ignored]
+ file mkdir $object_dir
+ for { set so_nr $worker_nr } { $so_nr < $nr_gen_shlibs } { incr so_nr $nr_workers } {
+ if { [_compile_shlib self $static $last_run $so_nr] < 0 } {
+ return -1
+ }
+ }
+ # We don't shard building of tail-shlib, so only build it once.
+ if { $worker_nr == 0 } {
+ if { [_compile_tail_shlib self $static $last_run] < 0 } {
+ return -1
+ }
+ }
+ if { [_compile_binary_pieces self $worker_nr $static $last_run] < 0 } {
+ return -1
+ }
+ } else {
+ for { set run_nr 0 } { $run_nr < $nr_runs } { incr run_nr } {
+ set nr_gen_shlibs [_get_param $self(nr_gen_shlibs) $run_nr]
+ set object_dir [_make_object_dir_name self $static $run_nr]
+ file mkdir $object_dir
+ for { set so_nr $worker_nr } { $so_nr < $nr_gen_shlibs } { incr so_nr $nr_workers } {
+ if { [_compile_shlib self $static $run_nr $so_nr] < 0 } {
+ return -1
+ }
+ }
+ # We don't shard building of tail-shlib, so only build it once.
+ if { $worker_nr == 0 } {
+ if { [_compile_tail_shlib self $static $run_nr] < 0 } {
+ return -1
+ }
+ }
+ if { [_compile_binary_pieces self $worker_nr $static $run_nr] < 0 } {
+ return -1
+ }
+ }
+ }
+ return 0
+ }
+
+ # Main function invoked by each worker.
+ # This builds all the things that are possible to build in parallel,
+ # sharded up among all the workers.
+
+ proc compile_pieces { self_var worker_nr } {
+ upvar 1 $self_var self
+ verbose -log "GenPerfTest::compile_pieces worker $worker_nr, started [timestamp -format %c]"
+ verbose -log "self: [array get self]"
+ _verify_testcase self
+ if { [_compile_pieces self $worker_nr] < 0 } {
+ verbose -log "GenPerfTest::compile_pieces worker $worker_nr, failed [timestamp -format %c]"
+ return -1
+ }
+ verbose -log "GenPerfTest::compile_pieces worker $worker_nr, done [timestamp -format %c]"
+ return 0
+ }
+
+ proc _make_shlib_options { self_var static run_nr } {
+ upvar 1 $self_var self
+ set nr_gen_shlibs [_get_param $self(nr_gen_shlibs) $run_nr]
+ set result ""
+ for { set i 0 } { $i < $nr_gen_shlibs } { incr i } {
+ lappend result "shlib=[_make_shlib_name self $static $run_nr $i]"
+ }
+ set tail_shlib_name [_make_tail_shlib_name self $static $run_nr]
+ if { "$tail_shlib_name" != "" } {
+ lappend result "shlib=$tail_shlib_name"
+ }
+ return $result
+ }
+
+ proc _compile_binary { self_var static run_nr } {
+ upvar 1 $self_var self
+ set input_files [_make_binary_input_file_names self $static $run_nr]
+ set extra_headers [_get_param $self(binary_extra_headers) $run_nr]
+ set binary_file [_make_binary_name self $run_nr]
+ set compile_options [_compile_options self]
+ set shlib_options [_make_shlib_options self $static $run_nr]
+ if { [llength $shlib_options] > 0 } {
+ append compile_options " " $shlib_options
+ }
+ set compile_result [_perftest_compile self $input_files $extra_headers $binary_file executable $compile_options]
+ if { $compile_result != "" } {
+ verbose -log "_compile_binary failed: $compile_result"
+ return -1
+ }
+ return 0
+ }
+
+ # Helper function for compile.
+ # The result is 0 for success, -1 for failure.
+
+ proc _compile { self_var } {
+ upvar 1 $self_var self
+ set nr_runs [llength $self(run_names)]
+ set static [_static_object_files_p self]
+ verbose -log "_compile: static flag: $static"
+ for { set run_nr 0 } { $run_nr < $nr_runs } { incr run_nr } {
+ if { [_compile_binary self $static $run_nr] < 0 } {
+ return -1
+ }
+ }
+ return 0
+ }
+
+ # Main function to compile the test program.
+ # It is assumed all the pieces of the binary (all the .o's, except those
+ # from test-supplied sources) have already been built with compile_pieces.
+ # There's no need to compile any shlibs here, as compile_pieces will have
+ # already built them too.
+ # The result is 0 for success, -1 for failure.
+
+ proc compile { self_var } {
+ upvar 1 $self_var self
+ verbose -log "GenPerfTest::compile, started [timestamp -format %c]"
+ verbose -log "self: [array get self]"
+ _verify_testcase self
+ if { [_compile self] < 0 } {
+ verbose -log "GenPerfTest::compile, failed [timestamp -format %c]"
+ return -1
+ }
+ verbose -log "GenPerfTest::compile, done [timestamp -format %c]"
+ return 0
+ }
+
+ # Main function for running a test.
+ # It is assumed that the test program has already been built.
+
+ proc run { builder_exp_file_name make_config_thunk_name py_file_name test_class_name } {
+ verbose -log "GenPerfTest::run, started [timestamp -format %c]"
+ verbose -log "GenPerfTest::run, $builder_exp_file_name $make_config_thunk_name $py_file_name $test_class_name"
+
+ set testprog [file rootname $builder_exp_file_name]
+
+ # This variable is required by perftest.exp.
+ # This isn't the name of the test program, it's the name of the .py
+ # test. The harness assumes they are the same, which is not the case
+ # here.
+ global testfile
+ set testfile [file rootname $py_file_name]
+
+ GenPerfTest::load_test_description $builder_exp_file_name
+
+ array set testcase [$make_config_thunk_name]
+
+ PerfTest::assemble {
+ # Compilation is handled elsewhere.
+ return 0
+ } {
+ clean_restart
+ return 0
+ } {
+ global gdb_prompt
+ gdb_test_multiple "python ${test_class_name}('$testprog:$testfile', [tcl_string_list_to_python_list $testcase(run_names)], '$testcase(binfile)').run()" "run test" {
+ -re "Error while executing Python code.\[\r\n\]+$gdb_prompt $" {
+ return -1
+ }
+ -re "\[\r\n\]+$gdb_prompt $" {
+ }
+ }
+ return 0
+ }
+ verbose -log "GenPerfTest::run, done [timestamp -format %c]"
+ return 0
+ }
+
+ # This function is invoked by the testcase builder scripts
+ # (e.g., gmonster[12].exp).
+ # It is not invoked by the testcase runner scripts
+ # (e.g., gmonster[12]-*.exp).
+
+ proc standard_compile_driver { exp_file_name make_config_thunk_name } {
+ global GDB_PERFTEST_MODE GDB_PERFTEST_SUBMODE
+ if ![info exists GDB_PERFTEST_SUBMODE] {
+ # Probably a plain "make check-perf", nothing to do.
+ # Give the user a reason why we're not running this test.
+ verbose -log "Test must be compiled/run in separate steps."
+ return 0
+ }
+ switch -glob -- "$GDB_PERFTEST_MODE/$GDB_PERFTEST_SUBMODE" {
+ compile/gen-workers {
+ if { [GenPerfTest::gen_worker_files $exp_file_name] < 0 } {
+ fail $GDB_PERFTEST_MODE
+ return -1
+ }
+ pass $GDB_PERFTEST_MODE
+ }
+ compile/build-pieces {
+ array set testcase [$make_config_thunk_name]
+ global PROGRAM_NAME WORKER_NR
+ if { [GenPerfTest::compile_pieces testcase $WORKER_NR] < 0 } {
+ fail $GDB_PERFTEST_MODE
+ # This gdb.log lives in a different place, help the user
+ # find it.
+ set output_dir "gdb.perf/outputs"
+ send_user "check ${output_dir}/${PROGRAM_NAME}/${PROGRAM_NAME}-${WORKER_NR}/gdb.log\n"
+ return -1
+ }
+ pass $GDB_PERFTEST_MODE
+ }
+ compile/final {
+ array set testcase [$make_config_thunk_name]
+ if { [GenPerfTest::compile testcase] < 0 } {
+ fail $GDB_PERFTEST_MODE
+ return -1
+ }
+ pass $GDB_PERFTEST_MODE
+ }
+ run/* - both/* {
+ # Since the builder script is a .exp file living in gdb.perf
+ # we can get here (dejagnu will find this file for a default
+ # "make check-perf"). We can also get here when
+ # standard_run_driver loads the builder .exp file.
+ }
+ default {
+ error "Bad value for GDB_PERFTEST_MODE/GDB_PERFTEST_SUBMODE: $GDB_PERFTEST_MODE/$GDB_PERFTEST_SUBMODE"
+ }
+ }
+ return 0
+ }
+
+ # This function is invoked by the testcase runner scripts
+ # (e.g., gmonster[12]-*.exp).
+ # It is not invoked by the testcase builder scripts
+ # (e.g., gmonster[12].exp).
+ #
+ # These tests are built separately with
+ # "make build-perf" and run with
+ # "make check-perf GDB_PERFTEST_MODE=run".
+ # Eventually we can support GDB_PERFTEST_MODE=both, but for now we don't.
+
+ proc standard_run_driver { builder_exp_file_name make_config_thunk_name py_file_name test_class_name } {
+ global GDB_PERFTEST_MODE
+ # First step is to compile the test.
+ switch $GDB_PERFTEST_MODE {
+ compile - both {
+ # Here is where we'd add code to support a plain
+ # "make check-perf".
+ }
+ run {
+ }
+ default {
+ error "Bad value for GDB_PERFTEST_MODE: $GDB_PERFTEST_MODE"
+ }
+ }
+ # Now run the test.
+ switch $GDB_PERFTEST_MODE {
+ compile {
+ }
+ both {
+ # Give the user a reason why we're not running this test.
+ verbose -log "Test must be compiled/run in separate steps."
+ }
+ run {
+ if { [GenPerfTest::run $builder_exp_file_name $make_config_thunk_name $py_file_name $test_class_name] < 0 } {
+ fail $GDB_PERFTEST_MODE
+ return -1
+ }
+ pass $GDB_PERFTEST_MODE
+ }
+ }
+ return 0
+ }
+}
+
+if ![info exists PERF_TEST_COMPILE_PARALLELISM] {
+ set PERF_TEST_COMPILE_PARALLELISM $GenPerfTest::DEFAULT_PERF_TEST_COMPILE_PARALLELISM
+}
projects / binutils-gdb.git / commitdiff