Here is a snippet from the log on main-arm64-default: FAILED: bin/lldb-server : && /usr/bin/c++ -O2 -pipe -DNDEBUG -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -DNDEBUG -isystem /usr/local/include -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-declarations -Wno-unknown-pragmas -Wno-strict-aliasing -Wno-deprecated-register -Wno-vla-extension -O2 -pipe -DNDEBUG -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -DNDEBUG -isystem /usr/local/include -fstack-protector-strong -Wl,--color-diagnostics -Wl,-z,origin -Wl,-O3 -Wl,--gc-sections tools/lldb/tools/lldb-server/CMakeFiles/lldb-server.dir/Acceptor.cpp.o tools/lldb/tools/lldb-server/CMakeFiles/lldb-server.dir/lldb-gdbserver.cpp.o tools/lldb/tools/lldb-server/CMakeFiles/lldb-server.dir/lldb-platform.cpp.o tools/lldb/tools/lldb-server/CMakeFiles/lldb-server.dir/lldb-server.cpp.o tools/lldb/tools/lldb-server/CMakeFiles/lldb-server.dir/LLDBServerUtilities.cpp.o tools/lldb/tools/lldb-server/CMakeFiles/lldb-server.dir/SystemInitializerLLGS.cpp.o -o bin/lldb-server -Wl,-rpath,"\$ORIGIN/../lib:/usr/local/lib" -lpthread lib/liblldbBase.a lib/liblldbHost.a lib/liblldbInitialization.a lib/liblldbPluginProcessFreeBSDRemote.a lib/liblldbPluginProcessFreeBSD.a lib/liblldbPluginObjectFileELF.a lib/liblldbPluginInstructionARM.a lib/liblldbPluginInstructionMIPS.a lib/liblldbPluginInstructionMIPS64.a lib/liblldbPluginProcessGDBRemote.a lib/liblldbPluginPlatformMacOSX.a lib/liblldbPluginPlatformPOSIX.a lib/liblldbPluginProcessPOSIX.a lib/liblldbCore.a lib/liblldbSymbol.a lib/liblldbTarget.a lib/liblldbPluginProcessUtility.a lib/liblldbBreakpoint.a lib/liblldbInterpreter.a lib/liblldbDataFormatters.a lib/liblldbExpression.a lib/liblldbPluginCPlusPlusLanguage.a lib/liblldbPluginObjCLanguage.a lib/liblldbPluginExpressionParserClang.a lib/liblldbCommands.a lib/liblldbPluginObjectFileJIT.a lib/liblldbPluginClangCommon.a lib/liblldbPluginCPPRuntime.a lib/liblldbPluginTypeSystemClang.a lib/liblldbPluginAppleObjCRuntime.a lib/liblldbPluginObjCRuntime.a lib/liblldbPluginRenderScriptRuntime.a lib/liblldbPluginSymbolFileDWARF.a lib/liblldbPluginSymbolFilePDB.a lib/liblldbPluginSymbolFileNativePDB.a lib/liblldbPluginObjectFilePDB.a lib/liblldbCore.a lib/liblldbSymbol.a lib/liblldbTarget.a lib/liblldbPluginProcessUtility.a lib/liblldbBreakpoint.a lib/liblldbInterpreter.a lib/liblldbDataFormatters.a lib/liblldbExpression.a lib/liblldbPluginCPlusPlusLanguage.a lib/liblldbPluginObjCLanguage.a lib/liblldbPluginExpressionParserClang.a lib/liblldbCommands.a lib/liblldbPluginObjectFileJIT.a lib/liblldbPluginClangCommon.a lib/liblldbPluginCPPRuntime.a lib/liblldbPluginTypeSystemClang.a lib/liblldbPluginAppleObjCRuntime.a lib/liblldbPluginObjCRuntime.a lib/liblldbPluginRenderScriptRuntime.a lib/liblldbPluginSymbolFileDWARF.a lib/liblldbPluginSymbolFilePDB.a lib/liblldbPluginSymbolFileNativePDB.a lib/liblldbPluginObjectFilePDB.a lib/liblldbCore.a lib/liblldbSymbol.a lib/liblldbTarget.a lib/liblldbPluginProcessUtility.a lib/liblldbBreakpoint.a lib/liblldbInterpreter.a lib/liblldbDataFormatters.a lib/liblldbExpression.a lib/liblldbPluginCPlusPlusLanguage.a lib/liblldbPluginObjCLanguage.a lib/liblldbPluginExpressionParserClang.a lib/liblldbCommands.a lib/liblldbPluginObjectFileJIT.a lib/liblldbPluginClangCommon.a lib/liblldbPluginCPPRuntime.a lib/liblldbPluginTypeSystemClang.a lib/liblldbPluginAppleObjCRuntime.a lib/liblldbPluginObjCRuntime.a lib/liblldbPluginRenderScriptRuntime.a lib/liblldbPluginSymbolFileDWARF.a lib/liblldbPluginSymbolFilePDB.a lib/liblldbPluginSymbolFileNativePDB.a lib/liblldbPluginObjectFilePDB.a lib/liblldbCore.a lib/liblldbSymbol.a lib/liblldbTarget.a lib/liblldbPluginProcessUtility.a lib/liblldbBreakpoint.a lib/liblldbInterpreter.a lib/liblldbDataFormatters.a lib/liblldbExpression.a lib/liblldbPluginCPlusPlusLanguage.a lib/liblldbPluginObjCLanguage.a lib/liblldbPluginExpressionParserClang.a lib/liblldbCommands.a lib/liblldbPluginObjectFileJIT.a lib/liblldbPluginClangCommon.a lib/liblldbPluginCPPRuntime.a lib/liblldbPluginTypeSystemClang.a lib/liblldbPluginAppleObjCRuntime.a lib/liblldbPluginObjCRuntime.a lib/liblldbPluginRenderScriptRuntime.a lib/liblldbPluginSymbolFileDWARF.a lib/liblldbPluginSymbolFilePDB.a lib/liblldbPluginSymbolFileNativePDB.a lib/liblldbPluginObjectFilePDB.a lib/liblldbCore.a lib/liblldbSymbol.a lib/liblldbTarget.a lib/liblldbPluginProcessUtility.a lib/liblldbBreakpoint.a lib/liblldbInterpreter.a lib/liblldbDataFormatters.a lib/liblldbExpression.a lib/liblldbPluginCPlusPlusLanguage.a lib/liblldbPluginObjCLanguage.a lib/liblldbPluginExpressionParserClang.a lib/liblldbCommands.a lib/liblldbPluginObjectFileJIT.a lib/liblldbPluginClangCommon.a lib/liblldbPluginCPPRuntime.a lib/liblldbPluginTypeSystemClang.a lib/liblldbPluginAppleObjCRuntime.a lib/liblldbPluginObjCRuntime.a lib/liblldbPluginRenderScriptRuntime.a lib/liblldbPluginSymbolFileDWARF.a lib/liblldbPluginSymbolFilePDB.a lib/liblldbPluginSymbolFileNativePDB.a lib/liblldbPluginObjectFilePDB.a /usr/lib/libcurses.so /usr/lib/libform.so /usr/lib/libpanel.so lib/liblldbBase.a lib/liblldbHost.a /usr/local/lib/libxml2.so /usr/local/lib/libedit.so /usr/lib/liblzma.so /usr/local/lib/libedit.so /usr/lib/liblzma.so lib/liblldbUtility.a -lpthread lib/libclang-cpp.so.12 lib/libLLVM-12.so && : ld: error: undefined symbol: lldb_private::process_freebsd::NativeRegisterContextFreeBSD::CreateHostNativeRegisterContextFreeBSD(lldb_private::ArchSpec const&, lldb_private::NativeThreadProtocol&) >>> referenced by NativeThreadFreeBSD.cpp >>> NativeThreadFreeBSD.cpp.o:(lldb_private::process_freebsd::NativeThreadFreeBSD::NativeThreadFreeBSD(lldb_private::process_freebsd::NativeProcessFreeBSD&, unsigned long)) in archive lib/liblldbPluginProcessFreeBSDRemote.a c++: error: linker command failed with exit code 1 (use -v to see invocation) The errors are similar on riscv64/13 (crossbuilt) and powerpc64/12. I have not tested the others yet.
http://ampere2.nyi.freebsd.org/data/main-arm64-default/p567446_se53138694a/logs/errors/llvm12-12.0.0.r2.log
Also ok on main-i386-default.
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/ports/commit/?id=cc0bbd86088c545607a8585256adb8e3cfb132ad commit cc0bbd86088c545607a8585256adb8e3cfb132ad Author: Brooks Davis <brooks@FreeBSD.org> AuthorDate: 2021-04-07 17:26:40 +0000 Commit: Brooks Davis <brooks@FreeBSD.org> CommitDate: 2021-04-07 17:26:40 +0000 llvm12: Disable LLDB on non-x86 architectures The 12.0.0 branch point hit point in the rework of FreeBSD debug targets were non-x86 architectures are broken. For now, simply disable LLDB builds on those platforms. PR: 254082 devel/llvm12/Makefile | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
A commit in branch 2021Q2 references this bug: URL: https://cgit.FreeBSD.org/ports/commit/?id=3ce785449ff3bd8d33020a697759cd2ecdc12478 commit 3ce785449ff3bd8d33020a697759cd2ecdc12478 Author: Brooks Davis <brooks@FreeBSD.org> AuthorDate: 2021-04-07 17:26:40 +0000 Commit: Jan Beich <jbeich@FreeBSD.org> CommitDate: 2021-04-23 16:11:03 +0000 llvm12: Disable LLDB on non-x86 architectures The 12.0.0 branch point hit point in the rework of FreeBSD debug targets were non-x86 architectures are broken. For now, simply disable LLDB builds on those platforms. PR: 254082 (cherry picked from commit cc0bbd86088c545607a8585256adb8e3cfb132ad) devel/llvm12/Makefile | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)