forked from amazingfate/loongoffice
f0aa1a78fb
As discussed in b4f6b26b5a1a78fecfa95ec2eb7ac8b80495d8aa "SAL_DLLPUBLIC_RTTI for proper RTTI visibility for LLVM," RTTI-based -fsanitize= checks with Clang on Linux need special precautions to make RTTI symbols visible across DSOs. The approach taken there, as well as in 598d8194b0ea1a64e0ebba28a86c128bafa57c7c "Visible function type RTTI for Clang -fsanitize=function," was to add explicit SAL_DLLPUBLIC_RTTI annontations to relevant type definitions. However, for -fsanitize=vptr that would have required many more of those, so it appears easier to "misuse" -fsanitize-ms-compat in that case, which happens to give all RTTI symbols default visibility (while otherwise still honoring our SAL_DLLPUBLIC/PRIVATE annotations). The SAL_DLLPUBLIC_RTTI annotations from 598d8194b0ea1a64e0ebba28a86c128bafa57c7c "Visible function type RTTI for Clang -fsanitize=function" can likely be removed again. Change-Id: Ibeff7ab8c908111a7dc66ff0677204f112b24db8
12 lines
444 B
Diff
12 lines
444 B
Diff
--- configure
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+++ configure
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@@ -17060,7 +17060,7 @@
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fvisibility=hidden compiler flag" >&5
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$as_echo_n "checking for -fvisibility=hidden compiler flag... " >&6; }
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saved_CXXFLAGS="$CXXFLAGS"
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- CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
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+ CXXFLAGS="$CXXFLAGS -fvisibility-ms-compat"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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