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| author | David Faust <david.faust@oracle.com> | 2022-12-07 11:44:28 -0800 |
|---|---|---|
| committer | David Faust <david.faust@oracle.com> | 2022-12-14 10:20:52 -0800 |
| commit | 2bce22e88e1c8486a0f2d42311506a8d3da20fb7 (patch) | |
| tree | 911e7df680b0a6f1ea5ccd4ecfe80cf1ea5a3efa /gcc/gcov.cc | |
| parent | 0e9495303db062cf118869b7526132b5821833e9 (diff) | |
| download | gcc-2bce22e88e1c8486a0f2d42311506a8d3da20fb7.zip gcc-2bce22e88e1c8486a0f2d42311506a8d3da20fb7.tar.gz gcc-2bce22e88e1c8486a0f2d42311506a8d3da20fb7.tar.bz2 | |
btf: add 'extern' linkage for variables [PR106773]
Add support for the 'extern' linkage value for BTF_KIND_VAR records,
which is used for variables declared as extern in the source file.
This also fixes a bug with BTF generation for extern variables which
have both a non-defining declaration and a defining declaration in the
same CU.
PR target/106773
gcc/
* btfout.cc (btf_collect_datasec): Mark extern variables as such.
(btf_dvd_emit_preprocess_cb): Skip non-defining extern variable decl
if there is a defining decl for the same variable.
(btf_asm_varent): Accomodate 'extern' linkage.
gcc/testsuite/
* gcc.dg/debug/btf/btf-variables-4.c: New test.
* gcc.dg/debug/btf/btf-variables-5.c: New test.
include/
* btf.h (enum btf_var_linkage): New.
(struct btf_var): Update comment to note 'extern' linkage.
Diffstat (limited to 'gcc/gcov.cc')
0 files changed, 0 insertions, 0 deletions