diff options
| author | Alexei Starovoitov <ast@kernel.org> | 2022-11-22 09:15:29 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-11-22 13:34:08 -0800 |
| commit | dc79f035b2062e4ff4f6432eda18f461f82b1333 (patch) | |
| tree | 4ab578497dc37992c6e531ab389ea507d37f4253 /tools/testing/selftests/bpf/prog_tests | |
| parent | 0b2971a2703c015b5737d66688c2c7c81a5e391b (diff) | |
selftests/bpf: Workaround for llvm nop-4 bug
Currently LLVM fails to recognize .data.* as data section and defaults to .text
section. Later BPF backend tries to emit 4-byte NOP instruction which doesn't
exist in BPF ISA and aborts.
The fix for LLVM is pending:
https://reviews.llvm.org/D138477
While waiting for the fix lets workaround the linked_list test case
by using .bss.* prefix which is properly recognized by LLVM as BSS section.
Fix libbpf to support .bss. prefix and adjust tests.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/linked_list.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/linked_list.c b/tools/testing/selftests/bpf/prog_tests/linked_list.c index dd73d0a62c6e..9a7d4c47af63 100644 --- a/tools/testing/selftests/bpf/prog_tests/linked_list.c +++ b/tools/testing/selftests/bpf/prog_tests/linked_list.c @@ -189,7 +189,7 @@ static void test_linked_list_success(int mode, bool leave_in_map) ASSERT_OK(ret, "global_list_push_pop"); ASSERT_OK(opts.retval, "global_list_push_pop retval"); if (!leave_in_map) - clear_fields(skel->maps.data_A); + clear_fields(skel->maps.bss_A); if (mode == PUSH_POP) goto end; @@ -211,7 +211,7 @@ ppm: ASSERT_OK(ret, "global_list_push_pop_multiple"); ASSERT_OK(opts.retval, "global_list_push_pop_multiple retval"); if (!leave_in_map) - clear_fields(skel->maps.data_A); + clear_fields(skel->maps.bss_A); if (mode == PUSH_POP_MULT) goto end; @@ -233,7 +233,7 @@ lil: ASSERT_OK(ret, "global_list_in_list"); ASSERT_OK(opts.retval, "global_list_in_list retval"); if (!leave_in_map) - clear_fields(skel->maps.data_A); + clear_fields(skel->maps.bss_A); end: linked_list__destroy(skel); } |