Great, that should be a safe change to patch then. I submitted this today here <https://github.com/protocolbuffers/protobuf/commit/435c182ae66906891d4345159577a11ae5addbf7>, but it will take some time for that change to make it into a release.
On Tue, Jun 11, 2024 at 5:40 AM 'Ky Waegel' via Protocol Buffers < protobuf@googlegroups.com> wrote: > Yes, that seems to work. > > On Friday, June 7, 2024 at 2:50:24 PM UTC-7 Adam Cozzette wrote: > >> Does putting an asterisk in front of pb::* here >> <https://github.com/protocolbuffers/protobuf/blob/54d8f03974c108ef8fd0f26568cd9eb086165568/src/libprotobuf.map#L5> >> fix the problem? I think we're trying to export everything under the pb >> namespace, but for some reason the type info for pb::CppFeatures is not >> getting exported. >> >> On Thu, Jun 6, 2024 at 5:04 PM 'Ky Waegel' via Protocol Buffers < >> prot...@googlegroups.com> wrote: >> >>> I've been working to build Protobuf with ASan and/or UBSan support >>> (mostly for compatibility with a containing project), and I've been running >>> into some weird symbol visibility errors. Example trying to run `protoc` >>> with "-fsanitize=address" enabled: >>> >>> protobuf-27.1/libprotoc.so.27.1.0: undefined symbol: >>> _ZTIN2pb11CppFeaturesE >>> >>> I initially thought this was just a weird quirk in my build system, but >>> then I discovered this patch >>> <https://fossies.org/linux/mysql/extra/protobuf/protobuf-24.4/src/libprotobuf.map> >>> to a vendored copy of Protobuf inside of MySQL 8.4.0 that reference the >>> same symbol, mentions that the change is required for UBSan support, and >>> fixes my symbol issue. >>> >>> Anyone know what's going on here? Asking here before filing a bug >>> because I'm not entirely sure if this is a bug, or of I'm (ab)using the >>> build flags somehow. >>> >>> (Initially ran into this with v24.3, but the same thing happens with >>> v27.1.) >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Protocol Buffers" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to protobuf+u...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/protobuf/69654ee7-b09e-405c-b9ad-d5ad8709f1b8n%40googlegroups.com >>> <https://groups.google.com/d/msgid/protobuf/69654ee7-b09e-405c-b9ad-d5ad8709f1b8n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "Protocol Buffers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to protobuf+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/protobuf/9b8acea7-bee4-4060-9ccd-019f0a2a49c1n%40googlegroups.com > <https://groups.google.com/d/msgid/protobuf/9b8acea7-bee4-4060-9ccd-019f0a2a49c1n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to protobuf+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/protobuf/CADqAXr6n_111Lme0D72EnzAkcgJiz7PFvaaGSX%3DyDnasmVgArw%40mail.gmail.com.
