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| author | Indu Bhagat <indu.bhagat@oracle.com> | 2024-04-08 11:01:45 -0700 |
|---|---|---|
| committer | Indu Bhagat <indu.bhagat@oracle.com> | 2024-04-10 17:31:45 -0700 |
| commit | 936dd627cd90bdfa3f796712c043406958131d7c (patch) | |
| tree | 1b2952b6e0a1788061da22e7d944b88af1da7fb2 /gcc/cp/module.cc | |
| parent | 5c869aa8a4538b218d9e59de6c96133971e7b965 (diff) | |
| download | gcc-936dd627cd90bdfa3f796712c043406958131d7c.zip gcc-936dd627cd90bdfa3f796712c043406958131d7c.tar.gz gcc-936dd627cd90bdfa3f796712c043406958131d7c.tar.bz2 | |
btf: do not skip members of data type with type id BTF_VOID_TYPEID
The previous fix in gen_ctf_sou_type () exposes an issue in BTF
generation, however: BTF emission was currently decrementing the vlen
(indicating the number of members) to skip members of type CTF_K_UNKNOWN
altogether, but still emitting the BTF for the corresponding member (in
output_asm_btf_sou_fields ()).
One can see malformed BTF by executing the newly added CTF testcase
(gcc.dg/debug/ctf/ctf-bitfields-5.c) with -gbtf instead or even existing
btf-struct-2.c without this patch.
To fix the issue, it makes sense to rather _not_ skip members of data
type of type id BTF_VOID_TYPEID.
gcc/ChangeLog:
* btfout.cc (btf_asm_type): Do not skip emitting members of
unknown type.
gcc/testsuite/ChangeLog:
* gcc.dg/debug/btf/btf-bitfields-4.c: Update the vlen check.
* gcc.dg/debug/btf/btf-struct-2.c: Check that member named 'f'
with void data type is emitted.
Diffstat (limited to 'gcc/cp/module.cc')
0 files changed, 0 insertions, 0 deletions