https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230399
--- Comment #6 from Dimitry Andric <d...@freebsd.org> ---
This is how libunwind.s built with clang 6.0.1 ends:
.ident "FreeBSD clang version 6.0.1 (tags/RELEASE_601/final 335540)
(based on LLVM 6.0.1)"
.section ".note.GNU-stack","",@progbits
.section .debug_line,"",@progbits
.Lline_table_start0:
Compare to this with clang 7.0.0:
.ident "FreeBSD clang version 7.0.0 (branches/release_70 338892)
(based on LLVM 7.0.0svn)"
.section ".note.GNU-stack","",@progbits
.addrsig
.addrsig_sym __gxx_personality_v0
.addrsig_sym
_ZZN9libunwind17LocalAddressSpace18findUnwindSectionsEmRNS_18UnwindInfoSectionsEENUlP12dl_phdr_infomPvE_8__invokeES4_mS5_
.addrsig_sym _ZN9libunwind17LocalAddressSpace17sThisAddressSpaceE
.addrsig_sym
_ZN9libunwind13DwarfFDECacheINS_17LocalAddressSpaceEE5_lockE
.addrsig_sym
_ZN9libunwind13DwarfFDECacheINS_17LocalAddressSpaceEE14_initialBufferE
.section .debug_line,"",@progbits
.Lline_table_start0:
For some reason, it adds these .addrsig_sym directives, but no idea what
they're for.
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