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i#1729 offline traces: add static bursty trace support
Adds testing for gathering a bursty trace using statically linked code: Adds a static client drmemtrace_static. Adds a test tool.drcacheoff.burst_static which includes an application that uses the start/stop API to start DR midway through a big loop and to detach fully from DR a few iterations later. This "bursty trace" is saved by the linked drmemtrace_static client to a file and passed to the cache simulator as part of the test. Review-URL: https://codereview.appspot.com/307330043
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| /* ********************************************************** | ||
| * Copyright (c) 2016 Google, Inc. All rights reserved. | ||
| * **********************************************************/ | ||
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| /* | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are met: | ||
| * | ||
| * * Redistributions of source code must retain the above copyright notice, | ||
| * this list of conditions and the following disclaimer. | ||
| * | ||
| * * Redistributions in binary form must reproduce the above copyright notice, | ||
| * this list of conditions and the following disclaimer in the documentation | ||
| * and/or other materials provided with the distribution. | ||
| * | ||
| * * Neither the name of Google, Inc. nor the names of its contributors may be | ||
| * used to endorse or promote products derived from this software without | ||
| * specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| * ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE, INC. OR CONTRIBUTORS BE LIABLE | ||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | ||
| * DAMAGE. | ||
| */ | ||
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| /* This application links in drmemtrace_static and acquires a trace during | ||
| * a "burst" of execution in the middle of the application. It then detaches. | ||
| */ | ||
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| #include <assert.h> | ||
| #include <iostream> | ||
| #include <math.h> | ||
| #include <stdlib.h> | ||
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| #include "dr_api.h" | ||
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| bool | ||
| my_setenv(const char *var, const char *value) | ||
| { | ||
| #ifdef UNIX | ||
| return setenv(var, value, 1/*override*/) == 0; | ||
| #else | ||
| return SetEnvironmentVariable(var, value) == TRUE; | ||
| #endif | ||
| } | ||
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| static int | ||
| do_some_work(int i) | ||
| { | ||
| static int iters = 512; | ||
| double val = (double)i; | ||
| for (int i = 0; i < iters; ++i) { | ||
| val += sin(val); | ||
| } | ||
| return (val > 0); | ||
| } | ||
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| int | ||
| main(int argc, const char *argv[]) | ||
| { | ||
| static int outer_iters = 2048; | ||
| /* We trace a 4-iter burst of execution. */ | ||
| static int iter_start = outer_iters/3; | ||
| static int iter_stop = iter_start + 4; | ||
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| my_setenv("DYNAMORIO_OPTIONS", "-stderr_mask 0xc -client_lib ';;-offline'"); | ||
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| std::cerr << "pre-DR init\n"; | ||
| dr_app_setup(); | ||
| assert(!dr_app_running_under_dynamorio()); | ||
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| for (int i = 0; i < outer_iters; ++i) { | ||
| if (i == iter_start) { | ||
| std::cerr << "pre-DR start\n"; | ||
| dr_app_start(); | ||
| } | ||
| if (i >= iter_start && i <= iter_stop) | ||
| assert(dr_app_running_under_dynamorio()); | ||
| else | ||
| assert(!dr_app_running_under_dynamorio()); | ||
| if (do_some_work(i) < 0) | ||
| std::cerr << "error in computation\n"; | ||
| if (i == iter_stop) { | ||
| std::cerr << "pre-DR detach\n"; | ||
| dr_app_stop_and_cleanup(); | ||
| } | ||
| } | ||
| std::cerr << "all done\n"; | ||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,22 @@ | ||
| pre-DR init | ||
| pre-DR start | ||
| pre-DR detach | ||
| all done | ||
| Core #0 \(1 thread\(s\)\) | ||
| L1I stats: | ||
| Hits: *[0-9,\.]*..... | ||
| Misses: [0-9].. | ||
| .* Miss rate: 0[,\.]..% | ||
| L1D stats: | ||
| Hits: *[0-9,\.]*..... | ||
| Misses: *[0-9]*. | ||
| .* Miss rate: 0[,\.]..% | ||
| Core #1 \(0 thread\(s\)\) | ||
| Core #2 \(0 thread\(s\)\) | ||
| Core #3 \(0 thread\(s\)\) | ||
| LL stats: | ||
| Hits: *[0-9]* | ||
| Misses: *[0-9]*.. | ||
| .* Local miss rate: *[0-9]*[,\.]..% | ||
| Child hits: *[0-9,\.]*... | ||
| Total miss rate: [0-1][,\.]..% |
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@@ -1301,7 +1301,11 @@ function(torun test key source native standalone_dr dr_ops exe_ops added_out) | |
| # Some apps have enough output that ctest runs out of memory when | ||
| # doing its built-in regex cmp so we use a separate script. | ||
| # We also use this approach for tests that need custom success tests. | ||
| set(cmd_with_at ${rundr} ${exepath} ${exe_ops}) | ||
| if (DEFINED ${key}_nodr) | ||
| set(cmd_with_at ${exepath} ${exe_ops}) | ||
| else () | ||
| set(cmd_with_at ${rundr} ${exepath} ${exe_ops}) | ||
| endif () | ||
| # we pass intra-arg spaces via @@ and inter-arg via @ and ; via ! | ||
| # to get around the pain of trying to quote everything just right: | ||
| # much simpler this way. | ||
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@@ -2407,22 +2411,30 @@ if (CLIENT_INTERFACE) | |
| # Test offline traces. | ||
| # XXX: we could exclude the pipe files and build the offline trace | ||
| # support by itself for Windows and Android. | ||
| torunonly_ci(tool.drcacheoff.simple ${ci_shared_app} drcachesim | ||
| # We could use drcachesim-simple.templatex if we had the launcher fork | ||
| # and print out the "---- <application exited with code 0> ----". | ||
| "offline-simple.c" # for templatex basename | ||
| "-offline" "" "") | ||
| set(tool.drcacheoff.simple_toolname "drcachesim") | ||
| set(tool.drcacheoff.simple_basedir | ||
| "${PROJECT_SOURCE_DIR}/clients/drcachesim/tests") | ||
| set(tool.drcacheoff.simple_rawtemp ON) # no preprocessor | ||
| get_target_path_for_execution(drcachesim_path drcachesim) | ||
| prefix_cmd_if_necessary(drcachesim_path ON ${drcachesim_path}) | ||
| set(tool.drcacheoff.simple_runcmp "${CMAKE_CURRENT_SOURCE_DIR}/runmulti.cmake") | ||
| set(tool.drcacheoff.simple_precmd | ||
| "${CMAKE_COMMAND}@-E@[email protected]_app.*.log") | ||
| set(tool.drcacheoff.simple_postcmd | ||
| "${drcachesim_path}@[email protected]_app.*.log") | ||
| macro (torunonly_drcacheoff testname exetgt) | ||
| torunonly_ci(tool.drcacheoff.${testname} ${exetgt} drcachesim | ||
| "offline-${testname}.c" # for templatex basename | ||
| "-offline" "" "") | ||
| set(tool.drcacheoff.${testname}_toolname "drcachesim") | ||
| set(tool.drcacheoff.${testname}_basedir | ||
| "${PROJECT_SOURCE_DIR}/clients/drcachesim/tests") | ||
| set(tool.drcacheoff.${testname}_rawtemp ON) # no preprocessor | ||
| get_target_path_for_execution(drcachesim_path drcachesim) | ||
| prefix_cmd_if_necessary(drcachesim_path ON ${drcachesim_path}) | ||
| set(tool.drcacheoff.${testname}_runcmp | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/runmulti.cmake") | ||
| set(tool.drcacheoff.${testname}_precmd | ||
| "${CMAKE_COMMAND}@-E@remove@memtrace.${exetgt}.*.log") | ||
| set(tool.drcacheoff.${testname}_postcmd | ||
| "${drcachesim_path}@-infile@memtrace.${exetgt}.*.log") | ||
| endmacro() | ||
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| # We could share drcachesim-simple.templatex if we had the launcher fork | ||
| # and print out the "---- <application exited with code 0> ----". | ||
| torunonly_drcacheoff(simple ${ci_shared_app}) | ||
| torunonly_drcacheoff(burst_static tool.drcacheoff.burst_static) | ||
| set(tool.drcacheoff.burst_static_nodr ON) | ||
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| endif () | ||
| endif () | ||
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