diff options
Diffstat (limited to 'meson.build')
| -rw-r--r-- | meson.build | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/meson.build b/meson.build index 8766fbf8c..14051a130 100644 --- a/meson.build +++ b/meson.build @@ -305,6 +305,23 @@ add_project_arguments( language : 'cpp', ) +if cxx.get_id() in ['gcc', 'clang'] + # 2024-03-24: jade benchmarked the default sanitize reporting in clang and got + # a regression of about 10% on hackage-packages.nix with clang. So we are trapping instead. + # + # This has an overhead of 0-4% on gcc and unmeasurably little on clang, in + # Nix evaluation benchmarks. + # + # N.B. Meson generates a completely nonsense warning here: + # https://github.com/mesonbuild/meson/issues/9822 + # Both of these args cannot be written in the default meson configuration. + # b_sanitize=signed-integer-overflow is ignored, and + # -fsanitize-undefined-trap-on-error is not representable. + sanitize_args = ['-fsanitize=signed-integer-overflow', '-fsanitize-undefined-trap-on-error'] + add_project_arguments(sanitize_args, language: 'cpp') + add_project_link_arguments(sanitize_args, language: 'cpp') +endif + add_project_link_arguments('-pthread', language : 'cpp') if cxx.get_linker_id() in ['ld.bfd', 'ld.gold'] add_project_link_arguments('-Wl,--no-copy-dt-needed-entries', language : 'cpp') |