162306a36Sopenharmony_ciThe struct perf_event_attr test (attr tests) support 262306a36Sopenharmony_ci==================================================== 362306a36Sopenharmony_ciThis testing support is embedded into perf directly and is governed 462306a36Sopenharmony_ciby the PERF_TEST_ATTR environment variable and hook inside the 562306a36Sopenharmony_cisys_perf_event_open function. 662306a36Sopenharmony_ci 762306a36Sopenharmony_ciThe general idea is to store 'struct perf_event_attr' details for 862306a36Sopenharmony_cieach event created within single perf command. Each event details 962306a36Sopenharmony_ciare stored into separate text file. Once perf command is finished 1062306a36Sopenharmony_cithese files are checked for values we expect for command. 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ciThe attr tests consist of following parts: 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_citests/attr.c 1562306a36Sopenharmony_ci------------ 1662306a36Sopenharmony_ciThis is the sys_perf_event_open hook implementation. The hook 1762306a36Sopenharmony_ciis triggered when the PERF_TEST_ATTR environment variable is 1862306a36Sopenharmony_cidefined. It must contain name of existing directory with access 1962306a36Sopenharmony_ciand write permissions. 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ciFor each sys_perf_event_open call event details are stored in 2262306a36Sopenharmony_ciseparate file. Besides 'struct perf_event_attr' values we also 2362306a36Sopenharmony_cistore 'fd' and 'group_fd' values to allow checking for groups. 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_citests/attr.py 2662306a36Sopenharmony_ci------------- 2762306a36Sopenharmony_ciThis is the python script that does all the hard work. It reads 2862306a36Sopenharmony_cithe test definition, executes it and checks results. 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_citests/attr/ 3162306a36Sopenharmony_ci----------- 3262306a36Sopenharmony_ciDirectory containing all attr test definitions. 3362306a36Sopenharmony_ciFollowing tests are defined (with perf commands): 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ci perf record kill (test-record-basic) 3662306a36Sopenharmony_ci perf record -b kill (test-record-branch-any) 3762306a36Sopenharmony_ci perf record -j any kill (test-record-branch-filter-any) 3862306a36Sopenharmony_ci perf record -j any_call kill (test-record-branch-filter-any_call) 3962306a36Sopenharmony_ci perf record -j any_ret kill (test-record-branch-filter-any_ret) 4062306a36Sopenharmony_ci perf record -j hv kill (test-record-branch-filter-hv) 4162306a36Sopenharmony_ci perf record -j ind_call kill (test-record-branch-filter-ind_call) 4262306a36Sopenharmony_ci perf record -j k kill (test-record-branch-filter-k) 4362306a36Sopenharmony_ci perf record -j u kill (test-record-branch-filter-u) 4462306a36Sopenharmony_ci perf record -c 123 kill (test-record-count) 4562306a36Sopenharmony_ci perf record -d kill (test-record-data) 4662306a36Sopenharmony_ci perf record -F 100 kill (test-record-freq) 4762306a36Sopenharmony_ci perf record -g kill (test-record-graph-default) 4862306a36Sopenharmony_ci perf record -g kill (test-record-graph-default-aarch64) 4962306a36Sopenharmony_ci perf record --call-graph dwarf kill (test-record-graph-dwarf) 5062306a36Sopenharmony_ci perf record --call-graph fp kill (test-record-graph-fp) 5162306a36Sopenharmony_ci perf record --call-graph fp kill (test-record-graph-fp-aarch64) 5262306a36Sopenharmony_ci perf record -e '{cycles,instructions}' kill (test-record-group1) 5362306a36Sopenharmony_ci perf record -e '{cycles/period=1/,instructions/period=2/}:S' kill (test-record-group2) 5462306a36Sopenharmony_ci perf record -D kill (test-record-no-delay) 5562306a36Sopenharmony_ci perf record -i kill (test-record-no-inherit) 5662306a36Sopenharmony_ci perf record -n kill (test-record-no-samples) 5762306a36Sopenharmony_ci perf record -c 100 -P kill (test-record-period) 5862306a36Sopenharmony_ci perf record -c 1 --pfm-events=cycles:period=2 (test-record-pfm-period) 5962306a36Sopenharmony_ci perf record -R kill (test-record-raw) 6062306a36Sopenharmony_ci perf record -c 2 -e arm_spe_0// -- kill (test-record-spe-period) 6162306a36Sopenharmony_ci perf record -e arm_spe_0/period=3/ -- kill (test-record-spe-period-term) 6262306a36Sopenharmony_ci perf record -e arm_spe_0/pa_enable=1/ -- kill (test-record-spe-physical-address) 6362306a36Sopenharmony_ci perf stat -e cycles kill (test-stat-basic) 6462306a36Sopenharmony_ci perf stat kill (test-stat-default) 6562306a36Sopenharmony_ci perf stat -d kill (test-stat-detailed-1) 6662306a36Sopenharmony_ci perf stat -dd kill (test-stat-detailed-2) 6762306a36Sopenharmony_ci perf stat -ddd kill (test-stat-detailed-3) 6862306a36Sopenharmony_ci perf stat -e '{cycles,instructions}' kill (test-stat-group1) 6962306a36Sopenharmony_ci perf stat -i -e cycles kill (test-stat-no-inherit) 70