kernel/linux.git/tools/perf/tests/llvm.c, branch v6.1.168

perf: Stop using bpf_object__open_buffer() API

2022-01-25T04:44:09+00:00

bpf_object__open_buffer() API is deprecated, use the unified opts bpf_object__open_mem() API in perf instead. This requires at least libbpf 0.0.6. Signed-off-by: Christy Lee Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20220125005923.418339-3-christylee@fb.com

perf test: Remove skip_if_fail

2021-11-13T21:11:50+00:00

Remove optionality, always run tests in a suite even if one fails. This brings perf's test more inline with kunit that lacks this notion. Signed-off-by: Ian Rogers Tested-by: Sohaib Mohamed Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Brendan Higgins Cc: Daniel Latypov Cc: David Gow Cc: Ingo Molnar Cc: Jin Yao Cc: John Garry Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: https://lore.kernel.org/r/20211104064208.3156807-23-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: Convert llvm tests to test cases.

2021-11-13T21:11:49+00:00

Use null terminated array of test cases rather than the previous sub test functions. Signed-off-by: Ian Rogers Tested-by: Sohaib Mohamed Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Brendan Higgins Cc: Daniel Latypov Cc: David Gow Cc: Ingo Molnar Cc: Jin Yao Cc: John Garry Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: https://lore.kernel.org/r/20211104064208.3156807-15-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: Rename struct test to test_suite

2021-11-13T13:32:22+00:00

This is to align with kunit's terminology. Signed-off-by: Ian Rogers Tested-by: Sohaib Mohamed Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Brendan Higgins Cc: Daniel Latypov Cc: David Gow Cc: Ingo Molnar Cc: Jin Yao Cc: John Garry Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: https://lore.kernel.org/r/20211104064208.3156807-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: Move each test suite struct to its test

2021-11-13T13:30:58+00:00

Rather than export test functions, export the test struct. Rename with a suite__ prefix to avoid name collisions. Committer notes: Its '&suite__vectors_page', not '&suite__vectors_pages', noticed when cross building to arm (32-bit). Signed-off-by: Ian Rogers Tested-by: Sohaib Mohamed Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Brendan Higgins Cc: Daniel Latypov Cc: David Gow Cc: Ingo Molnar Cc: Jin Yao Cc: John Garry Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: https://lore.kernel.org/r/20211104064208.3156807-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Fix LLVM test failure when running in verbose mode

2021-08-31T18:17:45+00:00

A CI system might want to run all tests in verbose mode so that there is enough information to diagnose issues. This LLVM test is the only test that uses "-v" to signify to not skip the test if the preconditions aren't met (LLVM isn't installed). This means that running the test in verbose mode without LLVM installed causes a test failure. For consistency with the other tests, remove this verbose/skip check. An alternate solution would be to make _all_ tests not skip when run in verbose mode, but I don't think that would be intuitive. Also change the search_program() call to search_program_and_warn(). Previously the hint about installing LLVM was only printed by the actual test because this check was skipped in verbose mode. To maintain the old behaviour, the precondition check must also print the full warning. Previous output: $ ./perf test llvm 40: LLVM search and compile : 40.1: Basic BPF llvm compile : Skip $ ./perf test -v llvm 40: LLVM search and compile : 40.1: Basic BPF llvm compile : --- start --- test child forked, pid 2085835 ERROR: unable to find clang. Hint: Try to install latest clang/llvm to support BPF. Check your $PATH ... test child finished with -1 ---- end ---- LLVM search and compile subtest 1: FAILED! New output (non verbose mode is identical, verbose changes from fail to skip): $ ./perf test llvm 40: LLVM search and compile : 40.1: Basic BPF llvm compile : Skip $ ./perf test -v llvm 40: LLVM search and compile : 40.1: Basic BPF llvm compile : --- start --- test child forked, pid 2087680 ERROR: unable to find clang. Hint: Try to install latest clang/llvm to support BPF. Check your $PATH ... No clang, skip this test test child finished with -2 ---- end ---- LLVM search and compile subtest 1: Skip Signed-off-by: James Clark Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: clang-built-linux@googlegroups.com Link: http://lore.kernel.org/lkml/20210831145501.2135754-2-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Skip the llvm and bpf tests if HAVE_LIBBPF_SUPPORT isn't defined

2020-11-04T12:42:41+00:00

If either NO_LIBBPF=1 is passed, explicitely disabling it or if libbpf is not available due to some missing dependency, skip its tests, telling the user the feature isn't available. # perf test 40: LLVM search and compile : Skip (not compiled in) 41: Session topology : Ok 42: BPF filter : Skip (not compiled in) Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove util.h from where it is not needed

2019-09-20T12:19:20+00:00

Check that it is not needed and remove, fixing up some fallout for places where it was only serving to get something else. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-9h6dg6lsqe2usyqjh5rrues4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove needless evlist.h include directives

2019-09-01T01:24:10+00:00

Remove the last unneeded use of cache.h in a header, we can check where it is really needed, i.e. we can remove it and be sure that it isn't being obtained indirectly. This is an old file, used by now incorrectly in many places, so it was providing includes needed indirectly, fixup this fallout. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-3x3l8gihoaeh7714os861ia7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add missing headers, mostly stdlib.h

2019-07-09T13:13:22+00:00

Part of the erosion of util/util.h, that will lose its include stdlib.h, we need to add it to places where it is needed but was getting it indirectly. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-1imnqezw99ahc07fjeb51qby@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo