On Wed, Oct 16, 2019 at 4:49 AM Andrii Nakryiko <andriin@xxxxxx> wrote: > > 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 - patch #7 cleans up test_libbpf.sh/test_libbpf_open superseded by test_progs.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; something really odd here. Before the patchset ./test_progs -n 27 passes after the patch it simply hangs. Though strace -f ./test_progs -n 27 passes. Any idea?
