[PATCH 0/5] Fix segfaults related to missing BTF support

[Arnaldo Carvalho de Melo <acme@kernel.org>]

Sorry for the top post: Only the cover letter ended up reaching the
mailing list, so resending to have it there :-\

Hi,

	While looking for reports to fix before release 1.28 I got to
Matthias reports about segfaults in systems where BTF isn't present, so
I introduced a regression test and infrastructure to allow testing
handling such a system, please take a look.

Thanks,

- Arnaldo

Arnaldo Carvalho de Melo (5):
  core: Add method to get the vmlinux BTF filename, allow overriding it via env var
  tests default_vmlinux_btf: Introduce test for using BTF by default
  pahole: Honour exclusive BTF loading
  tests default_vmlinux_btf: Cover the no args segfault too
  core, libctf: Check if constructor arguments are NULL before using them

 dwarves.c                    | 33 ++++++++++++++++++++++++++++++---
 dwarves.h                    |  2 ++
 libctf.c                     |  3 +++
 man-pages/pahole.1           |  4 ++++
 pahole.c                     | 11 +++++++++--
 tests/default_vmlinux_btf.sh | 32 ++++++++++++++++++++++++++++++++
 6 files changed, 80 insertions(+), 5 deletions(-)
 create mode 100755 tests/default_vmlinux_btf.sh

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2.47.0