https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117447
--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by David Faust <dfa...@gcc.gnu.org>: https://gcc.gnu.org/g:0e1382034246a594f1da8dbaee97c4a06743f31a commit r15-5026-g0e1382034246a594f1da8dbaee97c4a06743f31a Author: David Faust <david.fa...@oracle.com> Date: Thu Nov 7 09:27:07 2024 -0800 bpf: avoid possible null deref in btf_ext_output [PR target/117447] The BPF-specific .BTF.ext section is always generated for BPF programs if -gbtf is specified, and generating it requires BTF information and assumes that the BTF info has already been generated. Compiling non-C languages to BPF is not supported, nor is generating CTF/BTF for non-C. But, compiling another language like C++ to BPF with -gbtf specified meant that we would try to generate the .BTF.ext section anyway, and then ICE because no BTF information was available. Add a check to bail out of btf_ext_output if the TU CTFC does not exist, meaning no BTF info is available. gcc/ PR target/117447 * config/bpf/btfext-out.cc (btf_ext_output): Bail if TU CTFC is null.
