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[clang] fix generation of .debug_aranges with LTO
Right now in case of LTO the section is not emited: $ cat test.c void __attribute__((optnone)) bar() { } void __attribute__((optnone)) foo() { bar(); } int main() { foo(); } $ clang -flto=thin -gdwarf-aranges -g -O3 test.c $ eu-readelf -waranges a.out | fgrep -c -e foo -e bar 0 $ clang -gdwarf-aranges -g -O3 test.c $ eu-readelf -waranges a.out | fgrep -c -e foo -e bar 2 Fix this by passing explicitly -mllvm -generate-arange-section. P.S. although this looks like a hack, since none of -mllvm was passed to the lld before. Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com> Suggested-by: OCHyams <orlando.hyams@sony.com> Reviewed By: dblaikie Differential Revision: https://reviews.llvm.org/D133092
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