mirror_ubuntu-kernels/tools/testing
Tony Ambardar c9a83e76b5 selftests/bpf: Fix compile if backtrace support missing in libc
Include GNU <execinfo.h> header only with glibc and provide weak, stubbed
backtrace functions as a fallback in test_progs.c. This allows for non-GNU
replacements while avoiding compile errors (e.g. with musl libc) like:

  test_progs.c:13:10: fatal error: execinfo.h: No such file or directory
     13 | #include <execinfo.h> /* backtrace */
        |          ^~~~~~~~~~~~
  test_progs.c: In function 'crash_handler':
  test_progs.c:1034:14: error: implicit declaration of function 'backtrace' [-Werror=implicit-function-declaration]
   1034 |         sz = backtrace(bt, ARRAY_SIZE(bt));
        |              ^~~~~~~~~
  test_progs.c:1045:9: error: implicit declaration of function 'backtrace_symbols_fd' [-Werror=implicit-function-declaration]
   1045 |         backtrace_symbols_fd(bt, sz, STDERR_FILENO);
        |         ^~~~~~~~~~~~~~~~~~~~

Fixes: 9fb156bb82 ("selftests/bpf: Print backtrace on SIGSEGV in test_progs")
Signed-off-by: Tony Ambardar <tony.ambardar@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/aa6dc8e23710cb457b278039d0081de7e7b4847d.1722244708.git.tony.ambardar@gmail.com
2024-07-30 13:45:45 -07:00
..
crypto/chacha20-s390
cxl cxl/region: check interleave capability 2024-06-25 14:45:27 -07:00
fault-injection
ktest
kunit RISC-V SoC Kconfig Updates for v6.10 2024-05-07 11:02:56 +02:00
memblock memblock tests: add memblock_overlaps_region_checks 2024-06-05 10:22:22 +03:00
nvdimm testing: nvdimm: Add MODULE_DESCRIPTION() macros 2024-06-17 18:43:08 -05:00
radix-tree tools/testing/radix-tree/idr-test: add missing MODULE_DESCRIPTION define 2024-06-28 19:36:27 -07:00
scatterlist
selftests selftests/bpf: Fix compile if backtrace support missing in libc 2024-07-30 13:45:45 -07:00
vsock test/vsock: add install target 2024-07-13 15:17:35 -07:00