diff options
Diffstat (limited to 'lldb/tools/lldb-perf/common/stepping/lldb-perf-stepping.cpp')
| -rw-r--r-- | lldb/tools/lldb-perf/common/stepping/lldb-perf-stepping.cpp | 528 |
1 files changed, 240 insertions, 288 deletions
diff --git a/lldb/tools/lldb-perf/common/stepping/lldb-perf-stepping.cpp b/lldb/tools/lldb-perf/common/stepping/lldb-perf-stepping.cpp index bb607ef06fa..0df8bdc9fdc 100644 --- a/lldb/tools/lldb-perf/common/stepping/lldb-perf-stepping.cpp +++ b/lldb/tools/lldb-perf/common/stepping/lldb-perf-stepping.cpp @@ -1,305 +1,259 @@ #include <CoreFoundation/CoreFoundation.h> -#include "lldb-perf/lib/Timer.h" -#include "lldb-perf/lib/Metric.h" #include "lldb-perf/lib/Measurement.h" +#include "lldb-perf/lib/Metric.h" #include "lldb-perf/lib/TestCase.h" +#include "lldb-perf/lib/Timer.h" #include "lldb-perf/lib/Xcode.h" -#include <unistd.h> -#include <string> #include <getopt.h> +#include <string> +#include <unistd.h> using namespace lldb_perf; -class StepTest : public TestCase -{ - typedef void (*no_function) (void); - +class StepTest : public TestCase { + typedef void (*no_function)(void); + public: - StepTest(bool use_single_stepping = false) : - m_main_source("stepping-testcase.cpp"), + StepTest(bool use_single_stepping = false) + : m_main_source("stepping-testcase.cpp"), m_use_single_stepping(use_single_stepping), - m_time_measurements(nullptr) - { - } - - virtual - ~StepTest() {} - - virtual bool - Setup (int& argc, const char**& argv) - { - TestCase::Setup (argc, argv); - - // Toggle the fast stepping command on or off as required. - const char *single_step_cmd = "settings set target.use-fast-stepping false"; - const char *fast_step_cmd = "settings set target.use-fast-stepping true"; - const char *cmd_to_use; - - if (m_use_single_stepping) - cmd_to_use = single_step_cmd; - else - cmd_to_use = fast_step_cmd; - - SBCommandReturnObject return_object; - m_debugger.GetCommandInterpreter().HandleCommand(cmd_to_use, - return_object); - if (!return_object.Succeeded()) - { - if (return_object.GetError() != NULL) - printf ("Got an error running settings set: %s.\n", return_object.GetError()); - else - printf ("Failed running settings set, no error.\n"); - } - - m_target = m_debugger.CreateTarget(m_app_path.c_str()); - m_first_bp = m_target.BreakpointCreateBySourceRegex("Here is some code to stop at originally.", m_main_source); - - const char* file_arg = m_app_path.c_str(); - const char* empty = nullptr; - const char* args[] = {file_arg, empty}; - SBLaunchInfo launch_info (args); - - return Launch (launch_info); + m_time_measurements(nullptr) {} + + virtual ~StepTest() {} + + virtual bool Setup(int &argc, const char **&argv) { + TestCase::Setup(argc, argv); + + // Toggle the fast stepping command on or off as required. + const char *single_step_cmd = "settings set target.use-fast-stepping false"; + const char *fast_step_cmd = "settings set target.use-fast-stepping true"; + const char *cmd_to_use; + + if (m_use_single_stepping) + cmd_to_use = single_step_cmd; + else + cmd_to_use = fast_step_cmd; + + SBCommandReturnObject return_object; + m_debugger.GetCommandInterpreter().HandleCommand(cmd_to_use, return_object); + if (!return_object.Succeeded()) { + if (return_object.GetError() != NULL) + printf("Got an error running settings set: %s.\n", + return_object.GetError()); + else + printf("Failed running settings set, no error.\n"); } - void - WriteResults (Results &results) - { - // Gotta turn off the last timer now. - m_individual_step_times.push_back(m_time_measurements.Stop()); - - size_t num_time_measurements = m_individual_step_times.size(); - - Results::Dictionary& results_dict = results.GetDictionary(); - const char *short_format_string = "step-time-%0.2d"; - const size_t short_size = strlen(short_format_string) + 5; - char short_buffer[short_size]; - const char *long_format_string = "The time it takes for step %d in the step sequence."; - const size_t long_size = strlen(long_format_string) + 5; - char long_buffer[long_size]; - - for (size_t i = 0; i < num_time_measurements; i++) - { - snprintf (short_buffer, short_size, short_format_string, i); - snprintf (long_buffer, long_size, long_format_string, i); - - results_dict.AddDouble(short_buffer, - long_buffer, - m_individual_step_times[i]); - - } - results_dict.AddDouble ("total-time", "Total time spent stepping.", m_time_measurements.GetMetric().GetSum()); - results_dict.AddDouble ("stddev-time", "StdDev of time spent stepping.", m_time_measurements.GetMetric().GetStandardDeviation()); - - results.Write(m_out_path.c_str()); - } - - - const char * - GetExecutablePath () const - { - if (m_app_path.empty()) - return NULL; - return m_app_path.c_str(); - } + m_target = m_debugger.CreateTarget(m_app_path.c_str()); + m_first_bp = m_target.BreakpointCreateBySourceRegex( + "Here is some code to stop at originally.", m_main_source); - const char * - GetResultFilePath () const - { - if (m_out_path.empty()) - return NULL; - return m_out_path.c_str(); - } + const char *file_arg = m_app_path.c_str(); + const char *empty = nullptr; + const char *args[] = {file_arg, empty}; + SBLaunchInfo launch_info(args); - void - SetExecutablePath (const char *path) - { - if (path && path[0]) - m_app_path = path; - else - m_app_path.clear(); - } - - void - SetResultFilePath (const char *path) - { - if (path && path[0]) - m_out_path = path; - else - m_out_path.clear(); - } - - void - SetUseSingleStep (bool use_it) - { - m_use_single_stepping = use_it; + return Launch(launch_info); + } + + void WriteResults(Results &results) { + // Gotta turn off the last timer now. + m_individual_step_times.push_back(m_time_measurements.Stop()); + + size_t num_time_measurements = m_individual_step_times.size(); + + Results::Dictionary &results_dict = results.GetDictionary(); + const char *short_format_string = "step-time-%0.2d"; + const size_t short_size = strlen(short_format_string) + 5; + char short_buffer[short_size]; + const char *long_format_string = + "The time it takes for step %d in the step sequence."; + const size_t long_size = strlen(long_format_string) + 5; + char long_buffer[long_size]; + + for (size_t i = 0; i < num_time_measurements; i++) { + snprintf(short_buffer, short_size, short_format_string, i); + snprintf(long_buffer, long_size, long_format_string, i); + + results_dict.AddDouble(short_buffer, long_buffer, + m_individual_step_times[i]); } + results_dict.AddDouble("total-time", "Total time spent stepping.", + m_time_measurements.GetMetric().GetSum()); + results_dict.AddDouble( + "stddev-time", "StdDev of time spent stepping.", + m_time_measurements.GetMetric().GetStandardDeviation()); + + results.Write(m_out_path.c_str()); + } + + const char *GetExecutablePath() const { + if (m_app_path.empty()) + return NULL; + return m_app_path.c_str(); + } + + const char *GetResultFilePath() const { + if (m_out_path.empty()) + return NULL; + return m_out_path.c_str(); + } + + void SetExecutablePath(const char *path) { + if (path && path[0]) + m_app_path = path; + else + m_app_path.clear(); + } + + void SetResultFilePath(const char *path) { + if (path && path[0]) + m_out_path = path; + else + m_out_path.clear(); + } + + void SetUseSingleStep(bool use_it) { m_use_single_stepping = use_it; } + private: - virtual void - TestStep (int counter, ActionWanted &next_action) - { - if (counter > 0) - { - m_individual_step_times.push_back(m_time_measurements.Stop()); - - } - - // Disable the breakpoint, just in case it gets multiple locations we don't want that confusing the stepping. - if (counter == 0) - m_first_bp.SetEnabled(false); - - next_action.StepOver(m_process.GetThreadAtIndex(0)); - m_time_measurements.Start(); - - + virtual void TestStep(int counter, ActionWanted &next_action) { + if (counter > 0) { + m_individual_step_times.push_back(m_time_measurements.Stop()); } - - SBBreakpoint m_first_bp; - SBFileSpec m_main_source; - TimeMeasurement<no_function> m_time_measurements; - std::vector<double> m_individual_step_times; - bool m_use_single_stepping; - std::string m_app_path; - std::string m_out_path; - + // Disable the breakpoint, just in case it gets multiple locations we don't + // want that confusing the stepping. + if (counter == 0) + m_first_bp.SetEnabled(false); + + next_action.StepOver(m_process.GetThreadAtIndex(0)); + m_time_measurements.Start(); + } + + SBBreakpoint m_first_bp; + SBFileSpec m_main_source; + TimeMeasurement<no_function> m_time_measurements; + std::vector<double> m_individual_step_times; + bool m_use_single_stepping; + std::string m_app_path; + std::string m_out_path; }; -struct Options -{ - std::string test_file_path; - std::string out_file; - bool verbose; - bool fast_step; - bool error; - bool print_help; - - Options() : - verbose (false), - fast_step (true), - error (false), - print_help (false) - { - } -}; +struct Options { + std::string test_file_path; + std::string out_file; + bool verbose; + bool fast_step; + bool error; + bool print_help; -static struct option g_long_options[] = { - { "verbose", no_argument, NULL, 'v' }, - { "single-step", no_argument, NULL, 's' }, - { "test-file", required_argument, NULL, 't' }, - { "out-file", required_argument, NULL, 'o' }, - { NULL, 0, NULL, 0 } + Options() + : verbose(false), fast_step(true), error(false), print_help(false) {} }; - -std::string -GetShortOptionString (struct option *long_options) -{ - std::string option_string; - for (int i = 0; long_options[i].name != NULL; ++i) - { - if (long_options[i].flag == NULL) - { - option_string.push_back ((char) long_options[i].val); - switch (long_options[i].has_arg) - { - default: - case no_argument: - break; - case required_argument: - option_string.push_back (':'); - break; - case optional_argument: - option_string.append (2, ':'); - break; - } - } +static struct option g_long_options[] = { + {"verbose", no_argument, NULL, 'v'}, + {"single-step", no_argument, NULL, 's'}, + {"test-file", required_argument, NULL, 't'}, + {"out-file", required_argument, NULL, 'o'}, + {NULL, 0, NULL, 0}}; + +std::string GetShortOptionString(struct option *long_options) { + std::string option_string; + for (int i = 0; long_options[i].name != NULL; ++i) { + if (long_options[i].flag == NULL) { + option_string.push_back((char)long_options[i].val); + switch (long_options[i].has_arg) { + default: + case no_argument: + break; + case required_argument: + option_string.push_back(':'); + break; + case optional_argument: + option_string.append(2, ':'); + break; + } } - return option_string; + } + return option_string; } -int main(int argc, const char * argv[]) -{ +int main(int argc, const char *argv[]) { + + // Prepare for & make calls to getopt_long_only. - // Prepare for & make calls to getopt_long_only. - - std::string short_option_string (GetShortOptionString(g_long_options)); - - StepTest test; + std::string short_option_string(GetShortOptionString(g_long_options)); - Options option_data; - bool done = false; + StepTest test; + + Options option_data; + bool done = false; #if __GLIBC__ - optind = 0; + optind = 0; #else - optreset = 1; - optind = 1; + optreset = 1; + optind = 1; #endif - while (!done) - { - int long_options_index = -1; - const int short_option = ::getopt_long_only (argc, - const_cast<char **>(argv), - short_option_string.c_str(), - g_long_options, - &long_options_index); - - switch (short_option) - { - case 0: - // Already handled - break; - - case -1: - done = true; - break; - - case '?': - option_data.print_help = true; - break; - - case 'h': - option_data.print_help = true; - break; - - case 'v': - option_data.verbose = true; - break; - - case 's': - option_data.fast_step = false; - test.SetUseSingleStep(true); - break; - - case 't': - { - SBFileSpec file(optarg); - if (file.Exists()) - test.SetExecutablePath(optarg); - else - fprintf(stderr, "error: file specified in --test-file (-t) option doesn't exist: '%s'\n", optarg); - } - break; - - case 'o': - test.SetResultFilePath(optarg); - break; - - default: - option_data.error = true; - option_data.print_help = true; - fprintf (stderr, "error: unrecognized option %c\n", short_option); - break; - } + while (!done) { + int long_options_index = -1; + const int short_option = ::getopt_long_only( + argc, const_cast<char **>(argv), short_option_string.c_str(), + g_long_options, &long_options_index); + + switch (short_option) { + case 0: + // Already handled + break; + + case -1: + done = true; + break; + + case '?': + option_data.print_help = true; + break; + + case 'h': + option_data.print_help = true; + break; + + case 'v': + option_data.verbose = true; + break; + + case 's': + option_data.fast_step = false; + test.SetUseSingleStep(true); + break; + + case 't': { + SBFileSpec file(optarg); + if (file.Exists()) + test.SetExecutablePath(optarg); + else + fprintf(stderr, "error: file specified in --test-file (-t) option " + "doesn't exist: '%s'\n", + optarg); + } break; + + case 'o': + test.SetResultFilePath(optarg); + break; + + default: + option_data.error = true; + option_data.print_help = true; + fprintf(stderr, "error: unrecognized option %c\n", short_option); + break; } + } - - if (option_data.print_help) - { - puts(R"( + if (option_data.print_help) { + puts(R"( NAME lldb-perf-stepping -- a tool that measures LLDB peformance of simple stepping operations. @@ -310,26 +264,24 @@ DESCRIPTION Runs a set of stepping operations, timing each step and outputs results to a plist file. )"); - exit(0); - } - if (option_data.error) - { - exit(1); - } - - if (test.GetExecutablePath() == NULL) - { - // --clang is mandatory - option_data.print_help = true; - option_data.error = true; - fprintf (stderr, "error: the '--test-file=PATH' option is mandatory\n"); - } - - // Update argc and argv after parsing options - argc -= optind; - argv += optind; - - test.SetVerbose(true); - TestCase::Run(test, argc, argv); - return 0; + exit(0); + } + if (option_data.error) { + exit(1); + } + + if (test.GetExecutablePath() == NULL) { + // --clang is mandatory + option_data.print_help = true; + option_data.error = true; + fprintf(stderr, "error: the '--test-file=PATH' option is mandatory\n"); + } + + // Update argc and argv after parsing options + argc -= optind; + argv += optind; + + test.SetVerbose(true); + TestCase::Run(test, argc, argv); + return 0; } |
