[Changes from v1: - Remove #defines for LINKAGE_* values, instead mirror enums from linux/btf.h to include/btf.h and use those. - Fix BTF generation for extern variable with both non-defining and defining decls in the same CU. Add a test for this. - Update several comments per review feedback. ]
Hi, This series fixes the issues reported in target/PR106773. I decided to split it into three commits, as there are ultimately three distinct issues and fixes. See each patch for details. Tested on bpf-unknown-none and x86_64-linux-gnu, no known regressions. OK to push? Thanks. David Faust (3): btf: add 'extern' linkage for variables [PR106773] btf: fix 'extern const void' variables [PR106773] btf: correct generation for extern funcs [PR106773] gcc/btfout.cc | 184 +++++++++++++----- .../gcc.dg/debug/btf/btf-datasec-2.c | 28 +++ .../gcc.dg/debug/btf/btf-function-6.c | 19 ++ gcc/testsuite/gcc.dg/debug/btf/btf-pr106773.c | 25 +++ .../gcc.dg/debug/btf/btf-variables-4.c | 24 +++ .../gcc.dg/debug/btf/btf-variables-5.c | 19 ++ include/btf.h | 29 ++- 7 files changed, 276 insertions(+), 52 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/debug/btf/btf-datasec-2.c create mode 100644 gcc/testsuite/gcc.dg/debug/btf/btf-function-6.c create mode 100644 gcc/testsuite/gcc.dg/debug/btf/btf-pr106773.c create mode 100644 gcc/testsuite/gcc.dg/debug/btf/btf-variables-4.c create mode 100644 gcc/testsuite/gcc.dg/debug/btf/btf-variables-5.c -- 2.38.1
