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Date: Tue, 15 Oct 2019 23:00:44 -0700 From: Andrii Nakryiko <andriin@...com> To: <bpf@...r.kernel.org>, <netdev@...r.kernel.org>, <ast@...com>, <daniel@...earbox.net> CC: <andrii.nakryiko@...il.com>, <kernel-team@...com>, Andrii Nakryiko <andriin@...com> Subject: [PATCH v4 bpf-next 0/7] Fix, clean up, and revamp selftests/bpf Makefile This patch set extensively revamps selftests/bpf's Makefile to generalize test runner concept and apply it uniformly to test_maps and test_progs test runners, along with test_progs' few build "flavors", exercising various ways to build BPF programs. As we do that, we fix dependencies between various phases of test runners, and simplify some one-off rules and dependencies currently present in Makefile. test_progs' flavors are now built into root $(OUTPUT) directory and can be run without any extra steps right from there. E.g., test_progs-alu32 is built and is supposed to be run from $(OUTPUT). It will cd into alu32/ subdirectory to load correct set of BPF object files (which are different from the ones built for test_progs). Outline: - patch #1 teaches test_progs about flavor sub-directories; - patch #2 fixes one of CO-RE tests to not depend strictly on process name; - patch #3 changes test_maps's usage of map_tests/tests.h to be the same as test_progs' one; - patch #4 adds convenient short `make test_progs`-like targets to build only individual tests, if necessary; - patch #5 is a main patch in the series; it uses a bunch of make magic (mainly $(call) and $(eval)) to define test runner "skeleton" and apply it to 4 different test runners, lots more details in corresponding commit description; - patch #6 does a bit of post-clean up for test_queue_map and test_stack_map BPF programs; - patch #7 cleans up test_libbpf.sh/test_libbpf_open superseded by test_progs. v3->v4: - remove accidentally checked in binaries; v2->v3: - drop test_xdp.o mixed compilation mode, remove test_libbpf.sh (Alexei); v1->v2: - drop test_progs-native causing compilation failures due to __builtin_preserve_field_access, add back test_xdp.o override, which will now emit rule re-definition warning. Andrii Nakryiko (7): selftests/bpf: teach test_progs to cd into subdir selftests/bpf: make CO-RE reloc test impartial to test_progs flavor selftests/bpf: switch test_maps to test_progs' test.h format selftests/bpf: add simple per-test targets to Makefile selftests/bpf: replace test_progs and test_maps w/ general rule selftests/bpf: move test_queue_stack_map.h into progs/ where it belongs selftest/bpf: remove test_libbpf.sh and test_libbpf_open tools/testing/selftests/bpf/.gitignore | 6 +- tools/testing/selftests/bpf/Makefile | 335 ++++++++++-------- .../selftests/bpf/prog_tests/core_reloc.c | 4 +- .../selftests/bpf/progs/core_reloc_types.h | 2 +- .../bpf/progs/test_core_reloc_kernel.c | 3 +- .../bpf/{ => progs}/test_queue_stack_map.h | 0 tools/testing/selftests/bpf/test_libbpf.sh | 43 --- .../testing/selftests/bpf/test_libbpf_open.c | 144 -------- tools/testing/selftests/bpf/test_maps.c | 8 +- tools/testing/selftests/bpf/test_progs.c | 33 +- 10 files changed, 232 insertions(+), 346 deletions(-) rename tools/testing/selftests/bpf/{ => progs}/test_queue_stack_map.h (100%) delete mode 100755 tools/testing/selftests/bpf/test_libbpf.sh delete mode 100644 tools/testing/selftests/bpf/test_libbpf_open.c -- 2.17.1
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