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build: Work around clang's stack size calculation without optimization

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When building without optimization on clang, certain big functions trip
the stack size limit despite not actually reaching it. Relax the stack
limit size for clang without optimization.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Peter Krempa 2023-09-04 12:10:25 +02:00
parent 0152aa5673
commit b68faa99d9
1 changed files with 10 additions and 1 deletions
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11
meson.build
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@ -247,8 +247,17 @@ alloc_max = run_command(
check: true,
)
stack_frame_size = 2048
# clang without optimization enlarges stack frames in certain corner cases
if cc.get_id() == 'clang' and get_option('optimization') == '0'
stack_frame_size = 4096
endif
# sanitizer instrumentation may enlarge stack frames
stack_frame_size = get_option('b_sanitize') == 'none' ? 2048 : 32768
if get_option('b_sanitize') == 'none'
stack_frame_size == 32768
endif
# array_bounds=2 check triggers false positive on some GCC
# versions when using sanitizers. Seen on Fedora 34 with