diff --git a/devel/llvm-cheri/Makefile b/devel/llvm-cheri/Makefile
index a398436498e7..19151a681629 100644
--- a/devel/llvm-cheri/Makefile
+++ b/devel/llvm-cheri/Makefile
@@ -1,293 +1,295 @@
 PORTNAME=	llvm
 PORTVERSION=	${LLVM_MAJOR}.0.d${SNAPDATE}
 PORTREVISION=	0
 CATEGORIES=	devel lang
 PKGNAMESUFFIX=	${LLVM_SUFFIX}
 
 MAINTAINER=	brooks@FreeBSD.org
 COMMENT?=	LLVM and Clang with support for the CHERI architecture
 WWW?=		https://cheri-cpu.org
 
 LICENSE_DIR=	${WRKSRC}/llvm
 .include "${.PARSEDIR}/../llvm-devel/Makefile.LICENSE"
 LICENSE:=       ${LICENSE:NARM}
 LICENSE+=	LLVM2
 LICENSE_FILE_LLVM2=	${LICENSE_DIR}/LICENSE.TXT
 LICENSE_NAME_LLVM2=	Apache License 2.0 with LLVM Exceptions
 LICENSE_PERMS_LLVM2=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 
 NOT_FOR_ARCHS=		i386 armv6 armv7 powerpc mips
 NOT_FOR_ARCHS_REASON=	No one will develop CHERI from 32-bit
 
 LLVM_SUFFIX?=	-cheri
 LLVM_PREFIX=	${PREFIX}/llvm${LLVM_SUFFIX}
 COMMAND_SUFFIX=	${LLVM_SUFFIX}
 DOCSDIR=	${PREFIX}/share/doc/${PORTNAME}${LLVM_SUFFIX}
 DATADIR=	${PREFIX}/share/${PORTNAME}${LLVM_SUFFIX}
 
 USES=		cmake compiler:c++17-lang cpe shebangfix
 USE_LDCONFIG=	${LLVM_PREFIX}/lib
 SHEBANG_FILES=	\
 		clang/tools/clang-format/git-clang-format \
 		clang/tools/clang-format/clang-format-diff.py \
 		clang/tools/scan-build-py/bin/analyze-build \
 		clang/tools/scan-build-py/bin/intercept-build \
 		clang/tools/scan-build-py/bin/scan-build \
 		clang/tools/scan-build-py/libexec/analyze-cc \
 		clang/tools/scan-build-py/libexec/analyze-c++ \
 		clang/tools/scan-build-py/libexec/intercept-cc \
 		clang/tools/scan-build-py/libexec/intercept-c++ \
 		clang/tools/scan-view/bin/scan-view \
 		clang/utils/hmaptool/hmaptool \
 		llvm/tools/opt-viewer/optrecord.py \
 		llvm/tools/opt-viewer/opt-diff.py \
 		llvm/tools/opt-viewer/opt-stats.py \
 		llvm/tools/opt-viewer/opt-viewer.py \
 		llvm/utils/lit/lit.py \
 		llvm/utils/llvm-lit/llvm-lit.in
 
 SUB_FILES+=	llvm-wrapper.sh
 SUB_LIST+=	LLVM_PREFIX="${LLVM_PREFIX}" LLVM_SUFFIX="${LLVM_SUFFIX}"
 
 CMAKE_INSTALL_PREFIX=	${LLVM_PREFIX}
 CMAKE_SOURCE_PATH=	${WRKSRC}/llvm
 CMAKE_ARGS+=	-DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_LINK_LLVM_DYLIB=ON
 CMAKE_ARGS+=	-DCMAKE_INSTALL_MANDIR:PATH="share/man"
 CMAKE_ARGS+=	-DLLVM_PARALLEL_LINK_JOBS=1
 CMAKE_ARGS+=	-DLLVM_ENABLE_Z3_SOLVER=OFF
 CMAKE_ARGS+=	-DLLVM_ENABLE_LIBXML2=OFF
 CMAKE_ARGS+=	-DLLVM_ENABLE_LIBEDIT=OFF
 CMAKE_ARGS+=	-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS}"
 
 .ifndef USE_GITLAB
 USE_GITHUB=	yes
 GH_PROJECT=	llvm-project
 GH_ACCOUNT=	CTSRD-CHERI
 GH_TAGNAME=	${LLVM_COMMIT}
 .endif
 
 .ifndef SNAPDATE
 .sinclude "${.PARSEDIR}/Makefile.snapshot"
 .endif
 
 OPTIONS_DEFINE=	CLANG DOCS LIT LLD STATIC_LIBS
 OPTIONS_DEFAULT=	CLANG LIT LLD
 OPTIONS_SUB=	yes
 
 CLANG_DESC=		Build clang
 CLANG_PORTDOCS=		clang
 CLANG_USES=		perl5
 # scan-build does require, but users can install it manually.
 CLANG_USE=		PERL5=build
 PLIST_FILES+=		share/toolchains/llvm${LLVM_SUFFIX}.mk
 SUB_FILES+=		xtoolchain.mk
 DOCS_BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}sphinx>=0,1:textproc/py-sphinx@${PY_FLAVOR} \
 			${PYTHON_PKGNAMEPREFIX}recommonmark>=0.0.20180530:textproc/py-recommonmark@${PY_FLAVOR}
 DOCS_CMAKE_ON=		-DLLVM_ENABLE_SPHINX=ON \
 			-DSPHINX_EXECUTABLE=${LOCALBASE}/bin/sphinx-build-${PYTHON_VER} \
 			-DSPHINX_WARNINGS_AS_ERRORS=OFF \
 			-DLLVM_BUILD_DOCS=ON
 DOCS_PLIST_FILES=	${MAN1SRCS:S|^|man/man1/|:S|.1$|${LLVM_SUFFIX}.1.gz|}
 DOCS_PORTDOCS=		llvm
 LIT_DESC=		Install lit and FileCheck test tools
 LIT_MOD_NAME=		lit${LLVM_SUFFIX:S/-/_/g}
 LIT_PLIST_SUB=		LIT_MOD_NAME=${LIT_MOD_NAME}
 LLD_DESC=		Install lld linker
 LLD_PORTDOCS=		lld
 LLDB_DESC=		Install lldb, the LLVM debugger
 LLDB_BUILD_DEPENDS=	swig:devel/swig
 STATIC_LIBS_DESC=	Install static libraries (does not effect sanitizers)
 
 LLVM_TARGETS?=		AArch64;ARM;PowerPC;RISCV;X86
 
 PLIST_SUB+=	COMMAND_SUFFIX=${COMMAND_SUFFIX} \
 		LLVM_MAJOR=${LLVM_MAJOR} \
 		LLVM_RELEASE=${LLVM_RELEASE} \
 		LLVM_SUFFIX=${LLVM_SUFFIX}
 
 COMMANDS=	${LLVM_COMMANDS}
 FIRST_COMMAND=	${COMMANDS:C/^/XXXX/1:MXXXX*:C/^XXXX//}
 
 MAN1SRCS+=	${LLVM_MAN1SRCS}
 
 STRIP_LIBS=	BugpointPasses.so \
 		LLVMHello.so \
 		${LIBNAME}.0 \
 		libLTO.so
 
+EXTRA_PATCHES+=	${PATCHDIR}/llvm${LLVM_MAJOR}-backport-version-fixes
+
 .include <bsd.port.options.mk>
 
 # keep in sync with /usr/src/lib/clang/clang.build.mk
 CONFIGURE_TARGET:=${ARCH:C/amd64/x86_64/:C/armv6hf/armv6/}-portbld-${OPSYS:tl}${OSREL}
 
 .if ${PORT_OPTIONS:MCLANG}
 LLVM_ENABLE_PROJECTS+=	clang
 COMMANDS+=	${CLANG_COMMANDS}
 MAN1SRCS+=	${CLANG_MAN1SRCS}
 USES+=		gnome
 .endif
 
 .if ${PORT_OPTIONS:MLIT}
 MAN1SRCS+=	${LIT_MAN1SRCS}
 # lit requires python, but don't install it by default.  Users can install.
 #_USES_PYTHON=	python
 .endif
 
 .if ${PORT_OPTIONS:MLLD}
 LLVM_ENABLE_PROJECTS+=	lld
 COMMANDS+=	${LLD_COMMANDS}
 .endif
 
 .if ${PORT_OPTIONS:MLLDB}
 LLVM_ENABLE_PROJECTS+=	lldb
 COMMANDS+=	${LLDB_COMMANDS}
 MAN1SRCS+=	${LLDB_MAN1SRCS}
 _USES_PYTHON=	python
 .endif
 
 .if defined(LLVM_ENABLE_PROJECTS)
 CMAKE_ARGS+=	-DLLVM_ENABLE_PROJECTS="${LLVM_ENABLE_PROJECTS:ts;}"
 .endif
 
 _USES_PYTHON?=	python:build
 USES+=		${_USES_PYTHON}
 
 .include <bsd.port.pre.mk>
 .include "${.CURDIR}/Makefile.COMMANDS"
 .include "${.CURDIR}/Makefile.MAN1SRCS"
 
 post-patch:
 	${REINPLACE_CMD} -e 's|import lit|import ${LIT_MOD_NAME}|' \
 	    -e 's|from lit|from ${LIT_MOD_NAME}|' \
 	    -e 's|lit\.|${LIT_MOD_NAME}.|' \
 	    ${WRKSRC}/llvm/utils/lit/lit.py ${WRKSRC}/llvm/utils/lit/lit/*.py
 
 post-patch-LLD-on:
 		${REINPLACE_CMD} -e "s|'indexsidebar.html'|['indexsidebar.html']|" \
 			${PATCH_WRKSRC}/lld/docs/conf.py
 
 post-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/share/toolchains/
 	${INSTALL_DATA} ${WRKDIR}/xtoolchain.mk \
 	    ${STAGEDIR}${PREFIX}/share/toolchains/llvm${LLVM_SUFFIX}.mk
 	${INSTALL_SCRIPT} ${WRKDIR}/llvm-wrapper.sh \
 	    ${STAGEDIR}${PREFIX}/bin/${COMMAND_PREFIX}${FIRST_COMMAND}${COMMAND_SUFFIX}
 .for command in ${COMMANDS:C/^/XXXX/1:NXXXX*}
 	${LN} -f ${STAGEDIR}${PREFIX}/bin/${COMMAND_PREFIX}${FIRST_COMMAND}${COMMAND_SUFFIX} \
 	    ${STAGEDIR}${PREFIX}/bin/${COMMAND_PREFIX}${command}${COMMAND_SUFFIX}
 .endfor
 	${RMDIR} ${STAGEDIR}${LLVM_PREFIX}/include/llvm/CHERI/cheri-compressed-cap/.github/workflows
 	${RMDIR} ${STAGEDIR}${LLVM_PREFIX}/include/llvm/CHERI/cheri-compressed-cap/.github
 
 post-install-DOCS-on:
 .if ${LLVM_MAJOR} == 13
 	${MV} ${STAGEDIR}${LLVM_PREFIX}/share/doc ${STAGEDIR}${DOCSDIR}
 .else
 	${RM} -r ${STAGEDIR}${DOCSDIR}
 	${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${MV} ${STAGEDIR}${LLVM_PREFIX}/share/doc/LLVM/* ${STAGEDIR}${DOCSDIR}
 	${RMDIR} ${STAGEDIR}${LLVM_PREFIX}/share/doc/LLVM
 	${RMDIR} ${STAGEDIR}${LLVM_PREFIX}/share/doc
 .endif
 .for _man in ${MAN1SRCS}
 	${MV} ${STAGEDIR}${LLVM_PREFIX}/share/man/man1/${_man} \
 	    ${STAGEDIR}${MANPREFIX}/man/man1/${_man:R}${LLVM_SUFFIX}.1
 .endfor
 .if ! ${PORT_OPTIONS:MLIT}
 	${RM} ${STAGEDIR}${LLVM_PREFIX}/share/man/man1/lit.1
 	${RM} ${STAGEDIR}${LLVM_PREFIX}/share/man/man1/FileCheck.1
 .endif
 #.if ${PORT_OPTIONS:MCLANG}
 #	${MV} ${STAGEDIR}${LLVM_PREFIX}/share/man/man1/scan-build.1 \
 #	    ${STAGEDIR}${MANPREFIX}/man/man1/scan-build${LLVM_SUFFIX}.1
 #.endif
 .if !${PORT_OPTIONS:MLLDB}
 	${RM} ${STAGEDIR}${LLVM_PREFIX}/share/man/man1/lldb-tblgen.1
 .endif
 	${RM} ${STAGEDIR}${LLVM_PREFIX}/share/man/man1/mlir-tblgen.1
 	${RMDIR} ${STAGEDIR}${LLVM_PREFIX}/share/man/man1/
 	${RMDIR} ${STAGEDIR}${LLVM_PREFIX}/share/man/
 
 post-install-LLD-on:
 	${LN} -s ld.lld ${STAGEDIR}${LLVM_PREFIX}/bin/ld
 
 post-install-LLDB-on:
 .if ${OPSYS} != "FreeBSD" || ${CHOSEN_COMPILER_TYPE} == clang
 	${RM} ${STAGEDIR}${LLVM_PREFIX}/lib/python*/site-packages/lib
 .endif
 
 post-install-CLANG-on:
 	${LN} -f ${STAGEDIR}${LLVM_PREFIX}/bin/clang \
 	    ${STAGEDIR}${LLVM_PREFIX}/bin/clang-cpp
 
 post-install-LIT-on:
 	${INSTALL_SCRIPT} ${PATCH_WRKSRC}/llvm/utils/lit/lit.py \
 	    ${STAGEDIR}${LLVM_PREFIX}/bin/lit
 	${LN} -f ${STAGEDIR}${LLVM_PREFIX}/bin/lit \
 	    ${STAGEDIR}${LLVM_PREFIX}/bin/llvm-lit
 	${LN} -f ${STAGEDIR}${LLVM_PREFIX}/bin/lit \
 	    ${STAGEDIR}${PREFIX}/bin/${COMMAND_PREFIX}lit${LLVM_SUFFIX}
 	${LN} -f ${STAGEDIR}${LLVM_PREFIX}/bin/lit \
 	    ${STAGEDIR}${PREFIX}/bin/${COMMAND_PREFIX}llvm-lit${LLVM_SUFFIX}
 	${MKDIR} ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/${LIT_MOD_NAME}
 	${INSTALL_DATA} ${WRKSRC}/llvm/utils/lit/lit/*.py \
 	    ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/${LIT_MOD_NAME}
 	${INSTALL_PROGRAM} ${WRKDIR}/.build/bin/FileCheck \
 	    ${STAGEDIR}${LLVM_PREFIX}/bin/
 	${LN} -f ${STAGEDIR}${LLVM_PREFIX}/bin/FileCheck \
 	    ${STAGEDIR}${PREFIX}/bin/${COMMAND_PREFIX}FileCheck${COMMAND_SUFFIX}
 
 post-install-STATIC_LIBS-off:
 	${RM} ${STAGEDIR}${LLVM_PREFIX}/lib/lib*.a
 
 TEST_CMD=	'(cd ${WRKSRC}/llvm/test; ${SETENV} ${MAKE_ENV} LD_LIBRARY_PATH=${WRKSRC}/Release/lib ${MAKE_CMD} check-local-lit)'
 do-test:
 	if [ `${ID} -u` = 0 ]; then \
 		${CHOWN} -R nobody ${WRKSRC}/llvm/test; \
 		su -m nobody -c ${TEST_CMD}; \
 	else \
 		${SH} -c ${TEST_CMD}; \
 	fi
 
 build-plist:
 	${RM} ${PLIST} ${PLIST}.tmp
 .for command in ${COMMANDS}
 	${ECHO_CMD} bin/${COMMAND_PREFIX}${command}%%COMMAND_SUFFIX%% >> ${PLIST}.tmp
 .endfor
 .for command in ${LIT_COMMANDS}
 	${ECHO_CMD} %%LIT%%bin/${COMMAND_PREFIX}${command}%%COMMAND_SUFFIX%% >> ${PLIST}.tmp
 	${ECHO_CMD} %%LIT%%${LLVM_PREFIX:S|${PREFIX}/||:S|${LLVM_SUFFIX}|%%LLVM_SUFFIX%%|}/bin/${command} >> ${PLIST}.tmp
 .endfor
 	${FIND} ${STAGEDIR}${LLVM_PREFIX} -type f -o -type l | \
 	    ${GREP} -v '[/-]lit$$' | ${GREP} -v 'FileCheck$$' | \
 	    ${GREP} -v man/man1 | ${SED} -e 's|${STAGEDIR}${PREFIX}/||' \
 	    -e 's|${PORTVERSION}|%%PORTVERSION%%|' \
 	    -e 's|release.cmake|%%CMAKE_BUILD_TYPE%%.cmake|' \
 	    -e 's|${LLVM_RELEASE:C/\./\\./g}|%%LLVM_RELEASE%%|' \
 	    -e 's|${LLVM_MAJOR:C/\./\\./}|%%LLVM_MAJOR%%|' \
 	    -e 's|${LLVM_SUFFIX}|%%LLVM_SUFFIX%%|' \
 	    | ${SORT} >> ${PLIST}.tmp
 	${FIND} ${STAGEDIR}${PYTHON_SITELIBDIR}/${LIT_MOD_NAME} -type f | \
 	    ${SED} -e 's|${STAGEDIR}${PYTHON_SITELIBDIR}|%%LIT%%%%PYTHON_SITELIBDIR%%|' \
 	    -e 's|${LIT_MOD_NAME}|%%LIT_MOD_NAME%%|' \
 	    -e 's|${LLVM_RELEASE:C/\./\\./g}|%%LLVM_RELEASE%%|' \
 	    -e 's|${LLVM_MAJOR:C/\./\\./}|%%LLVM_MAJOR%%|' \
 	    -e 's|${LLVM_SUFFIX}|%%LLVM_SUFFIX%%|' \
 	    | ${SORT} >> ${PLIST}.tmp
 	awk '{ \
 	    if ($$0 ~ /lib.lib[a-zA-Z].*\.a$$/) {printf "%%%%STATIC_LIBS%%%%"} \
 	    if ($$0 ~ /clang/ && $$0 !~ /omp.h/) {printf "%%%%CLANG%%%%"} \
 	    if ($$0 ~ /(bin\/(ld|lld|wasm-ld))|liblld[^b]|\/lld\// && $$0 !~ /lldb/) {printf "%%%%LLD%%%%"} \
 	    if ($$0 ~ /(argdumper|lldb)/) {printf "%%%%LLDB%%%%"} \
 	    print \
 	}' \${PLIST}.tmp >> ${PLIST}
 	${ECHO_CMD} '@postexec if type ccache-update-links >/dev/null 2>&1; then ccache-update-links -v; fi' >> ${PLIST}
 	${ECHO_CMD} '@postunexec if type ccache-update-links >/dev/null 2>&1; then ccache-update-links -v; fi' >> ${PLIST}
 	${RM} ${PLIST}.tmp
 
 check-commands:
 .for command in ${COMMANDS}
 	test -e ${STAGEDIR}${LLVM_PREFIX}/bin/${command}
 .endfor
 
 .include <bsd.port.post.mk>
diff --git a/devel/llvm-cheri/files/llvm13-backport-version-fixes b/devel/llvm-cheri/files/llvm13-backport-version-fixes
new file mode 100644
index 000000000000..52055a095912
--- /dev/null
+++ b/devel/llvm-cheri/files/llvm13-backport-version-fixes
@@ -0,0 +1,355 @@
+diff --git llvm/tools/lto/CMakeLists.txt llvm/tools/lto/CMakeLists.txt
+index 0af29ad762c5..055ce247e4e3 100644
+--- llvm/tools/lto/CMakeLists.txt
++++ llvm/tools/lto/CMakeLists.txt
+@@ -19,7 +19,11 @@ set(SOURCES
+   lto.cpp
+   )
+ 
+-set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/lto.exports)
++if (LLVM_LINK_LLVM_DYLIB)
++  set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/lto.dylib.exports)
++else()
++  set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/lto.exports)
++endif()
+ 
+ if(CMAKE_SYSTEM_NAME STREQUAL AIX)
+     set(LTO_LIBRARY_TYPE MODULE)
+diff --git llvm/tools/lto/lto.dylib.exports llvm/tools/lto/lto.dylib.exports
+new file mode 100644
+index 000000000000..8fdbd3522b9b
+--- /dev/null
++++ llvm/tools/lto/lto.dylib.exports
+@@ -0,0 +1,76 @@
++lto_get_error_message
++lto_get_version
++lto_initialize_disassembler
++lto_module_create
++lto_module_create_from_fd
++lto_module_create_from_fd_at_offset
++lto_module_create_from_memory
++lto_module_create_from_memory_with_path
++lto_module_create_in_local_context
++lto_module_create_in_codegen_context
++lto_module_get_linkeropts
++lto_module_get_macho_cputype
++lto_module_get_num_symbols
++lto_module_get_symbol_attribute
++lto_module_get_symbol_name
++lto_module_get_target_triple
++lto_module_set_target_triple
++lto_module_is_object_file
++lto_module_is_object_file_for_target
++lto_module_is_object_file_in_memory
++lto_module_is_object_file_in_memory_for_target
++lto_module_has_objc_category
++lto_module_dispose
++lto_api_version
++lto_codegen_set_diagnostic_handler
++lto_codegen_add_module
++lto_codegen_set_module
++lto_codegen_add_must_preserve_symbol
++lto_codegen_compile
++lto_codegen_create
++lto_codegen_create_in_local_context
++lto_codegen_dispose
++lto_codegen_set_debug_model
++lto_codegen_set_pic_model
++lto_codegen_write_merged_modules
++lto_codegen_debug_options
++lto_codegen_debug_options_array
++lto_codegen_set_assembler_args
++lto_codegen_set_assembler_path
++lto_codegen_set_cpu
++lto_codegen_compile_to_file
++lto_codegen_optimize
++lto_codegen_compile_optimized
++lto_codegen_set_should_internalize
++lto_codegen_set_should_embed_uselists
++lto_set_debug_options
++thinlto_create_codegen
++thinlto_codegen_dispose
++thinlto_codegen_add_module
++thinlto_codegen_process
++thinlto_module_get_num_objects
++thinlto_module_get_object
++thinlto_codegen_set_pic_model
++thinlto_codegen_set_cache_dir
++thinlto_codegen_set_cache_pruning_interval
++thinlto_codegen_set_cache_entry_expiration
++thinlto_codegen_set_final_cache_size_relative_to_available_space
++thinlto_codegen_set_cache_size_bytes
++thinlto_codegen_set_cache_size_megabytes
++thinlto_codegen_set_cache_size_files
++thinlto_codegen_set_savetemps_dir
++thinlto_codegen_set_cpu
++thinlto_debug_options
++lto_module_is_thinlto
++thinlto_codegen_add_must_preserve_symbol
++thinlto_codegen_add_cross_referenced_symbol
++thinlto_codegen_set_codegen_only
++thinlto_codegen_disable_codegen
++thinlto_module_get_num_object_files
++thinlto_module_get_object_file
++thinlto_set_generated_objects_dir
++lto_input_create
++lto_input_dispose
++lto_input_get_num_dependent_libraries
++lto_input_get_dependent_library
++lto_runtime_lib_symbols_list
+diff --git llvm/tools/lto/lto.exports llvm/tools/lto/lto.exports
+index 1948bba29b67..8fdbd3522b9b 100644
+--- llvm/tools/lto/lto.exports
++++ llvm/tools/lto/lto.exports
+@@ -44,12 +44,6 @@ lto_codegen_compile_optimized
+ lto_codegen_set_should_internalize
+ lto_codegen_set_should_embed_uselists
+ lto_set_debug_options
+-LLVMCreateDisasm
+-LLVMCreateDisasmCPU
+-LLVMDisasmDispose
+-LLVMDisasmInstruction
+-LLVMSetDisasmOptions
+-LLVMCreateDisasmCPUFeatures
+ thinlto_create_codegen
+ thinlto_codegen_dispose
+ thinlto_codegen_add_module
+diff --git llvm/tools/remarks-shlib/CMakeLists.txt llvm/tools/remarks-shlib/CMakeLists.txt
+index 865436247270..81a1d75964f0 100644
+--- llvm/tools/remarks-shlib/CMakeLists.txt
++++ llvm/tools/remarks-shlib/CMakeLists.txt
+@@ -9,7 +9,11 @@ if(LLVM_ENABLE_PIC)
+     libremarks.cpp
+     )
+ 
+-  set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/Remarks.exports)
++  if (LLVM_LINK_LLVM_DYLIB)
++    set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/Remarks.dylib.exports)
++  else()
++    set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/Remarks.exports)
++  endif()
+ 
+   add_llvm_library(Remarks SHARED INSTALL_WITH_TOOLCHAIN ${SOURCES})
+ 
+diff --git llvm/tools/remarks-shlib/Remarks.dylib.exports llvm/tools/remarks-shlib/Remarks.dylib.exports
+new file mode 100644
+index 000000000000..0c2a3c38c78c
+--- /dev/null
++++ llvm/tools/remarks-shlib/Remarks.dylib.exports
+@@ -0,0 +1 @@
++LLVMRemarkVersion
+diff --git openmp/libomptarget/plugins/exports openmp/libomptarget/plugins/exports
+index 61cc6746defd..cc7beda183af 100644
+--- openmp/libomptarget/plugins/exports
++++ openmp/libomptarget/plugins/exports
+@@ -1,29 +1,6 @@
+ VERS1.0 {
+   global:
+-    __tgt_rtl_is_valid_binary;
+-    __tgt_rtl_is_data_exchangable;
+-    __tgt_rtl_number_of_devices;
+-    __tgt_rtl_init_requires;
+-    __tgt_rtl_init_device;
+-    __tgt_rtl_load_binary;
+-    __tgt_rtl_data_alloc;
+-    __tgt_rtl_data_submit;
+-    __tgt_rtl_data_submit_async;
+-    __tgt_rtl_data_retrieve;
+-    __tgt_rtl_data_retrieve_async;
+-    __tgt_rtl_data_exchange;
+-    __tgt_rtl_data_exchange_async;
+-    __tgt_rtl_data_delete;
+-    __tgt_rtl_run_target_team_region;
+-    __tgt_rtl_run_target_team_region_async;
+-    __tgt_rtl_run_target_region;
+-    __tgt_rtl_run_target_region_async;
+-    __tgt_rtl_synchronize;
+-    __tgt_rtl_register_lib;
+-    __tgt_rtl_unregister_lib;
+-    __tgt_rtl_supports_empty_images;
+-    __tgt_rtl_set_info_flag;
+-    __tgt_rtl_print_device_info;
++    __tgt_rtl*;
+   local:
+     *;
+ };
+diff --git openmp/runtime/cmake/LibompHandleFlags.cmake openmp/runtime/cmake/LibompHandleFlags.cmake
+index 9e19e59ba17d..1ddbc870e0f1 100644
+--- openmp/runtime/cmake/LibompHandleFlags.cmake
++++ openmp/runtime/cmake/LibompHandleFlags.cmake
+@@ -98,7 +98,6 @@ function(libomp_get_ldflags ldflags)
+     IF_DEFINED CMAKE_C_OSX_CURRENT_VERSION_FLAG)
+   libomp_append(ldflags_local "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}${LIBOMP_VERSION_MAJOR}.${LIBOMP_VERSION_MINOR}"
+     IF_DEFINED CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG)
+-  libomp_append(ldflags_local -Wl,--warn-shared-textrel LIBOMP_HAVE_WARN_SHARED_TEXTREL_FLAG)
+   libomp_append(ldflags_local -Wl,--as-needed LIBOMP_HAVE_AS_NEEDED_FLAG)
+   libomp_append(ldflags_local "-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
+   libomp_append(ldflags_local -static-libgcc LIBOMP_HAVE_STATIC_LIBGCC_FLAG)
+diff --git openmp/runtime/cmake/config-ix.cmake openmp/runtime/cmake/config-ix.cmake
+index 56d0ddb321f6..6608d182692d 100644
+--- openmp/runtime/cmake/config-ix.cmake
++++ openmp/runtime/cmake/config-ix.cmake
+@@ -114,9 +114,8 @@ if(WIN32)
+   libomp_check_linker_flag(/SAFESEH LIBOMP_HAVE_SAFESEH_FLAG)
+ elseif(NOT APPLE)
+   libomp_check_linker_flag(-Wl,-x LIBOMP_HAVE_X_FLAG)
+-  libomp_check_linker_flag(-Wl,--warn-shared-textrel LIBOMP_HAVE_WARN_SHARED_TEXTREL_FLAG)
+   libomp_check_linker_flag(-Wl,--as-needed LIBOMP_HAVE_AS_NEEDED_FLAG)
+-  libomp_check_linker_flag("-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
++  libomp_check_linker_flag("-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_test_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
+   libomp_check_linker_flag(-static-libgcc LIBOMP_HAVE_STATIC_LIBGCC_FLAG)
+   libomp_check_linker_flag(-Wl,-z,noexecstack LIBOMP_HAVE_Z_NOEXECSTACK_FLAG)
+ endif()
+diff --git openmp/runtime/src/exports_so.txt openmp/runtime/src/exports_so.txt
+index cb79ae72e67b..16f2438647fe 100644
+--- openmp/runtime/src/exports_so.txt
++++ openmp/runtime/src/exports_so.txt
+@@ -71,10 +71,8 @@ VERSION {
+         __kmp_fork_call;
+         __kmp_invoke_microtask;
+ #if KMP_USE_MONITOR
+-        __kmp_launch_monitor;
+         __kmp_reap_monitor;
+ #endif
+-        __kmp_launch_worker;
+         __kmp_reap_worker;
+         __kmp_release_64;
+         __kmp_wait_64;
+diff --git openmp/runtime/src/exports_test_so.txt openmp/runtime/src/exports_test_so.txt
+new file mode 100644
+index 000000000000..912d160e7c06
+--- /dev/null
++++ openmp/runtime/src/exports_test_so.txt
+@@ -0,0 +1,60 @@
++# exports_test_so.txt #
++
++#
++#//===----------------------------------------------------------------------===//
++#//
++#// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
++#// See https://llvm.org/LICENSE.txt for license information.
++#// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
++#//
++#//===----------------------------------------------------------------------===//
++#
++
++# This is used only to test if the linker supports version scripts. If the full
++# version script it used we may error on undefined symbols and erroneously fail.
++
++VERSION {
++
++    global: # Exported symbols.
++
++        *;         # All symbols as exported for testing.
++
++    local: # Non-exported symbols.
++
++        *;         # All other symbols are not exported.
++
++}; # VERSION
++
++# sets up GCC OMP_ version dependency chain
++OMP_1.0 {
++};
++OMP_2.0 {
++} OMP_1.0;
++OMP_3.0 {
++} OMP_2.0;
++OMP_3.1 {
++} OMP_3.0;
++OMP_4.0 {
++} OMP_3.1;
++OMP_4.5 {
++} OMP_4.0;
++OMP_5.0 {
++} OMP_4.5;
++
++# sets up GCC GOMP_ version dependency chain
++GOMP_1.0 {
++};
++GOMP_2.0 {
++} GOMP_1.0;
++GOMP_3.0 {
++} GOMP_2.0;
++GOMP_4.0 {
++} GOMP_3.0;
++GOMP_4.5 {
++} GOMP_4.0;
++GOMP_5.0 {
++} GOMP_4.5;
++GOMP_5.0.1 {
++} GOMP_5.0;
++
++# end of file #
+diff --git openmp/runtime/src/kmp_runtime.cpp openmp/runtime/src/kmp_runtime.cpp
+index 16d415dc8a74..1d873773bbc2 100644
+--- openmp/runtime/src/kmp_runtime.cpp
++++ openmp/runtime/src/kmp_runtime.cpp
+@@ -8844,3 +8844,20 @@ void __kmp_set_nesting_mode_threads() {
+   if (__kmp_nesting_mode == 1) // turn on nesting for this case only
+     set__max_active_levels(thread, __kmp_nesting_mode_nlevels);
+ }
++
++// Empty symbols to export (see exports_so.txt) when feature is disabled
++extern "C" {
++#if !KMP_STATS_ENABLED
++void __kmp_reset_stats() {}
++#endif
++#if !USE_DEBUGGER
++int __kmp_omp_debug_struct_info = FALSE;
++int __kmp_debugging = FALSE;
++#endif
++#if !USE_ITT_BUILD || !USE_ITT_NOTIFY
++void __kmp_itt_fini_ittlib() {}
++void __kmp_itt_init_ittlib() {}
++#endif
++}
++
++// end of file
+diff --git openmp/runtime/src/kmp_utility.cpp openmp/runtime/src/kmp_utility.cpp
+index c4bfead9d0d6..5846a993619e 100644
+--- openmp/runtime/src/kmp_utility.cpp
++++ openmp/runtime/src/kmp_utility.cpp
+@@ -397,3 +397,16 @@ void __kmp_expand_file_name(char *result, size_t rlen, char *pattern) {
+ 
+   *pos = '\0';
+ }
++
++#if !OMPT_SUPPORT
++extern "C" {
++typedef struct ompt_start_tool_result_t ompt_start_tool_result_t;
++// Define symbols expected by VERSION script
++ompt_start_tool_result_t *ompt_start_tool(unsigned int omp_version,
++                                          const char *runtime_version) {
++  return nullptr;
++}
++
++void ompt_libomp_connect(ompt_start_tool_result_t *result) { result = nullptr; }
++}
++#endif
+diff --git openmp/runtime/src/z_Linux_util.cpp openmp/runtime/src/z_Linux_util.cpp
+index 42ad1d56f9ec..19fca31a2db0 100644
+--- openmp/runtime/src/z_Linux_util.cpp
++++ openmp/runtime/src/z_Linux_util.cpp
+@@ -987,7 +987,7 @@ void __kmp_exit_thread(int exit_status) {
+ #if KMP_USE_MONITOR
+ void __kmp_resume_monitor();
+ 
+-void __kmp_reap_monitor(kmp_info_t *th) {
++extern "C" void __kmp_reap_monitor(kmp_info_t *th) {
+   int status;
+   void *exit_val;
+ 
+@@ -1029,6 +1029,12 @@ void __kmp_reap_monitor(kmp_info_t *th) {
+ 
+   KMP_MB(); /* Flush all pending memory write invalidates.  */
+ }
++#else
++// Empty symbol to export (see exports_so.txt) when
++// monitor thread feature is disabled
++extern "C" void __kmp_reap_monitor(kmp_info_t *th) {
++  (void)th;
++}
+ #endif // KMP_USE_MONITOR
+ 
+ void __kmp_reap_worker(kmp_info_t *th) {
diff --git a/devel/llvm-cheri/files/llvm14-backport-version-fixes b/devel/llvm-cheri/files/llvm14-backport-version-fixes
new file mode 100644
index 000000000000..6964bfd7e54d
--- /dev/null
+++ b/devel/llvm-cheri/files/llvm14-backport-version-fixes
@@ -0,0 +1,375 @@
+diff --git llvm/tools/lto/CMakeLists.txt llvm/tools/lto/CMakeLists.txt
+index 67f6d3af40e0..9382ee9588b3 100644
+--- llvm/tools/lto/CMakeLists.txt
++++ llvm/tools/lto/CMakeLists.txt
+@@ -19,7 +19,11 @@ set(SOURCES
+   lto.cpp
+   )
+ 
+-set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/lto.exports)
++if (LLVM_LINK_LLVM_DYLIB)
++  set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/lto.dylib.exports)
++else()
++  set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/lto.exports)
++endif()
+ 
+ if(CMAKE_SYSTEM_NAME STREQUAL AIX)
+     set(LTO_LIBRARY_TYPE MODULE)
+diff --git llvm/tools/lto/lto.dylib.exports llvm/tools/lto/lto.dylib.exports
+new file mode 100644
+index 000000000000..4164c3919a97
+--- /dev/null
++++ llvm/tools/lto/lto.dylib.exports
+@@ -0,0 +1,77 @@
++lto_get_error_message
++lto_get_version
++lto_initialize_disassembler
++lto_module_create
++lto_module_create_from_fd
++lto_module_create_from_fd_at_offset
++lto_module_create_from_memory
++lto_module_create_from_memory_with_path
++lto_module_create_in_local_context
++lto_module_create_in_codegen_context
++lto_module_has_ctor_dtor
++lto_module_get_linkeropts
++lto_module_get_macho_cputype
++lto_module_get_num_symbols
++lto_module_get_symbol_attribute
++lto_module_get_symbol_name
++lto_module_get_target_triple
++lto_module_set_target_triple
++lto_module_is_object_file
++lto_module_is_object_file_for_target
++lto_module_is_object_file_in_memory
++lto_module_is_object_file_in_memory_for_target
++lto_module_has_objc_category
++lto_module_dispose
++lto_api_version
++lto_codegen_set_diagnostic_handler
++lto_codegen_add_module
++lto_codegen_set_module
++lto_codegen_add_must_preserve_symbol
++lto_codegen_compile
++lto_codegen_create
++lto_codegen_create_in_local_context
++lto_codegen_dispose
++lto_codegen_set_debug_model
++lto_codegen_set_pic_model
++lto_codegen_write_merged_modules
++lto_codegen_debug_options
++lto_codegen_debug_options_array
++lto_codegen_set_assembler_args
++lto_codegen_set_assembler_path
++lto_codegen_set_cpu
++lto_codegen_compile_to_file
++lto_codegen_optimize
++lto_codegen_compile_optimized
++lto_codegen_set_should_internalize
++lto_codegen_set_should_embed_uselists
++lto_set_debug_options
++thinlto_create_codegen
++thinlto_codegen_dispose
++thinlto_codegen_add_module
++thinlto_codegen_process
++thinlto_module_get_num_objects
++thinlto_module_get_object
++thinlto_codegen_set_pic_model
++thinlto_codegen_set_cache_dir
++thinlto_codegen_set_cache_pruning_interval
++thinlto_codegen_set_cache_entry_expiration
++thinlto_codegen_set_final_cache_size_relative_to_available_space
++thinlto_codegen_set_cache_size_bytes
++thinlto_codegen_set_cache_size_megabytes
++thinlto_codegen_set_cache_size_files
++thinlto_codegen_set_savetemps_dir
++thinlto_codegen_set_cpu
++thinlto_debug_options
++lto_module_is_thinlto
++thinlto_codegen_add_must_preserve_symbol
++thinlto_codegen_add_cross_referenced_symbol
++thinlto_codegen_set_codegen_only
++thinlto_codegen_disable_codegen
++thinlto_module_get_num_object_files
++thinlto_module_get_object_file
++thinlto_set_generated_objects_dir
++lto_input_create
++lto_input_dispose
++lto_input_get_num_dependent_libraries
++lto_input_get_dependent_library
++lto_runtime_lib_symbols_list
+diff --git llvm/tools/lto/lto.exports llvm/tools/lto/lto.exports
+index 3abae5f0fcba..4164c3919a97 100644
+--- llvm/tools/lto/lto.exports
++++ llvm/tools/lto/lto.exports
+@@ -45,12 +45,6 @@ lto_codegen_compile_optimized
+ lto_codegen_set_should_internalize
+ lto_codegen_set_should_embed_uselists
+ lto_set_debug_options
+-LLVMCreateDisasm
+-LLVMCreateDisasmCPU
+-LLVMDisasmDispose
+-LLVMDisasmInstruction
+-LLVMSetDisasmOptions
+-LLVMCreateDisasmCPUFeatures
+ thinlto_create_codegen
+ thinlto_codegen_dispose
+ thinlto_codegen_add_module
+diff --git llvm/tools/remarks-shlib/CMakeLists.txt llvm/tools/remarks-shlib/CMakeLists.txt
+index f22cedd9ead7..2f108a42c9aa 100644
+--- llvm/tools/remarks-shlib/CMakeLists.txt
++++ llvm/tools/remarks-shlib/CMakeLists.txt
+@@ -9,7 +9,11 @@ if(LLVM_ENABLE_PIC)
+     libremarks.cpp
+     )
+ 
+-  set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/Remarks.exports)
++  if (LLVM_LINK_LLVM_DYLIB)
++    set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/Remarks.dylib.exports)
++  else()
++    set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/Remarks.exports)
++  endif()
+ 
+   add_llvm_library(Remarks SHARED INSTALL_WITH_TOOLCHAIN ${SOURCES})
+ 
+diff --git llvm/tools/remarks-shlib/Remarks.dylib.exports llvm/tools/remarks-shlib/Remarks.dylib.exports
+new file mode 100644
+index 000000000000..0c2a3c38c78c
+--- /dev/null
++++ llvm/tools/remarks-shlib/Remarks.dylib.exports
+@@ -0,0 +1 @@
++LLVMRemarkVersion
+diff --git openmp/libomptarget/plugins/exports openmp/libomptarget/plugins/exports
+index 8664a2e493ee..cc7beda183af 100644
+--- openmp/libomptarget/plugins/exports
++++ openmp/libomptarget/plugins/exports
+@@ -1,36 +1,6 @@
+ VERS1.0 {
+   global:
+-    __tgt_rtl_is_valid_binary;
+-    __tgt_rtl_is_data_exchangable;
+-    __tgt_rtl_number_of_devices;
+-    __tgt_rtl_init_requires;
+-    __tgt_rtl_init_device;
+-    __tgt_rtl_load_binary;
+-    __tgt_rtl_data_alloc;
+-    __tgt_rtl_data_submit;
+-    __tgt_rtl_data_submit_async;
+-    __tgt_rtl_data_retrieve;
+-    __tgt_rtl_data_retrieve_async;
+-    __tgt_rtl_data_exchange;
+-    __tgt_rtl_data_exchange_async;
+-    __tgt_rtl_data_delete;
+-    __tgt_rtl_run_target_team_region;
+-    __tgt_rtl_run_target_team_region_async;
+-    __tgt_rtl_run_target_region;
+-    __tgt_rtl_run_target_region_async;
+-    __tgt_rtl_synchronize;
+-    __tgt_rtl_register_lib;
+-    __tgt_rtl_unregister_lib;
+-    __tgt_rtl_supports_empty_images;
+-    __tgt_rtl_set_info_flag;
+-    __tgt_rtl_print_device_info;
+-    __tgt_rtl_create_event;
+-    __tgt_rtl_record_event;
+-    __tgt_rtl_wait_event;
+-    __tgt_rtl_sync_event;
+-    __tgt_rtl_destroy_event;
+-    __tgt_rtl_init_device_info;
+-    __tgt_rtl_init_async_info;
++    __tgt_rtl*;
+   local:
+     *;
+ };
+diff --git openmp/libomptarget/src/exports openmp/libomptarget/src/exports
+index 0ef4c8cce521..425a6fad49cf 100644
+--- openmp/libomptarget/src/exports
++++ openmp/libomptarget/src/exports
+@@ -48,7 +48,6 @@ VERS1.0 {
+     omp_get_interop_int;
+     omp_get_interop_name;
+     omp_get_interop_type_desc;
+-    omp_get_interop_rc_desc;
+     __tgt_interop_init;
+     __tgt_interop_use;
+     __tgt_interop_destroy;
+diff --git openmp/runtime/cmake/LibompHandleFlags.cmake openmp/runtime/cmake/LibompHandleFlags.cmake
+index 9e19e59ba17d..1ddbc870e0f1 100644
+--- openmp/runtime/cmake/LibompHandleFlags.cmake
++++ openmp/runtime/cmake/LibompHandleFlags.cmake
+@@ -98,7 +98,6 @@ function(libomp_get_ldflags ldflags)
+     IF_DEFINED CMAKE_C_OSX_CURRENT_VERSION_FLAG)
+   libomp_append(ldflags_local "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}${LIBOMP_VERSION_MAJOR}.${LIBOMP_VERSION_MINOR}"
+     IF_DEFINED CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG)
+-  libomp_append(ldflags_local -Wl,--warn-shared-textrel LIBOMP_HAVE_WARN_SHARED_TEXTREL_FLAG)
+   libomp_append(ldflags_local -Wl,--as-needed LIBOMP_HAVE_AS_NEEDED_FLAG)
+   libomp_append(ldflags_local "-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
+   libomp_append(ldflags_local -static-libgcc LIBOMP_HAVE_STATIC_LIBGCC_FLAG)
+diff --git openmp/runtime/cmake/config-ix.cmake openmp/runtime/cmake/config-ix.cmake
+index 0fe1266b0067..d3806a446743 100644
+--- openmp/runtime/cmake/config-ix.cmake
++++ openmp/runtime/cmake/config-ix.cmake
+@@ -131,9 +131,8 @@ if(WIN32)
+   libomp_check_linker_flag(/SAFESEH LIBOMP_HAVE_SAFESEH_FLAG)
+ elseif(NOT APPLE)
+   libomp_check_linker_flag(-Wl,-x LIBOMP_HAVE_X_FLAG)
+-  libomp_check_linker_flag(-Wl,--warn-shared-textrel LIBOMP_HAVE_WARN_SHARED_TEXTREL_FLAG)
+   libomp_check_linker_flag(-Wl,--as-needed LIBOMP_HAVE_AS_NEEDED_FLAG)
+-  libomp_check_linker_flag("-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
++  libomp_check_linker_flag("-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_test_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
+   libomp_check_linker_flag(-static-libgcc LIBOMP_HAVE_STATIC_LIBGCC_FLAG)
+   libomp_check_linker_flag(-Wl,-z,noexecstack LIBOMP_HAVE_Z_NOEXECSTACK_FLAG)
+ endif()
+diff --git openmp/runtime/src/exports_so.txt openmp/runtime/src/exports_so.txt
+index ac188af31055..834c6118d820 100644
+--- openmp/runtime/src/exports_so.txt
++++ openmp/runtime/src/exports_so.txt
+@@ -71,10 +71,8 @@ VERSION {
+         __kmp_fork_call;
+         __kmp_invoke_microtask;
+ #if KMP_USE_MONITOR
+-        __kmp_launch_monitor;
+         __kmp_reap_monitor;
+ #endif
+-        __kmp_launch_worker;
+         __kmp_reap_worker;
+         __kmp_release_64;
+         __kmp_wait_64;
+diff --git openmp/runtime/src/exports_test_so.txt openmp/runtime/src/exports_test_so.txt
+new file mode 100644
+index 000000000000..912d160e7c06
+--- /dev/null
++++ openmp/runtime/src/exports_test_so.txt
+@@ -0,0 +1,60 @@
++# exports_test_so.txt #
++
++#
++#//===----------------------------------------------------------------------===//
++#//
++#// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
++#// See https://llvm.org/LICENSE.txt for license information.
++#// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
++#//
++#//===----------------------------------------------------------------------===//
++#
++
++# This is used only to test if the linker supports version scripts. If the full
++# version script it used we may error on undefined symbols and erroneously fail.
++
++VERSION {
++
++    global: # Exported symbols.
++
++        *;         # All symbols as exported for testing.
++
++    local: # Non-exported symbols.
++
++        *;         # All other symbols are not exported.
++
++}; # VERSION
++
++# sets up GCC OMP_ version dependency chain
++OMP_1.0 {
++};
++OMP_2.0 {
++} OMP_1.0;
++OMP_3.0 {
++} OMP_2.0;
++OMP_3.1 {
++} OMP_3.0;
++OMP_4.0 {
++} OMP_3.1;
++OMP_4.5 {
++} OMP_4.0;
++OMP_5.0 {
++} OMP_4.5;
++
++# sets up GCC GOMP_ version dependency chain
++GOMP_1.0 {
++};
++GOMP_2.0 {
++} GOMP_1.0;
++GOMP_3.0 {
++} GOMP_2.0;
++GOMP_4.0 {
++} GOMP_3.0;
++GOMP_4.5 {
++} GOMP_4.0;
++GOMP_5.0 {
++} GOMP_4.5;
++GOMP_5.0.1 {
++} GOMP_5.0;
++
++# end of file #
+diff --git openmp/runtime/src/kmp_runtime.cpp openmp/runtime/src/kmp_runtime.cpp
+index e1af2f43dae7..3db713e8c88b 100644
+--- openmp/runtime/src/kmp_runtime.cpp
++++ openmp/runtime/src/kmp_runtime.cpp
+@@ -9156,3 +9156,20 @@ void __kmp_set_nesting_mode_threads() {
+   if (__kmp_nesting_mode == 1) // turn on nesting for this case only
+     set__max_active_levels(thread, __kmp_nesting_mode_nlevels);
+ }
++
++// Empty symbols to export (see exports_so.txt) when feature is disabled
++extern "C" {
++#if !KMP_STATS_ENABLED
++void __kmp_reset_stats() {}
++#endif
++#if !USE_DEBUGGER
++int __kmp_omp_debug_struct_info = FALSE;
++int __kmp_debugging = FALSE;
++#endif
++#if !USE_ITT_BUILD || !USE_ITT_NOTIFY
++void __kmp_itt_fini_ittlib() {}
++void __kmp_itt_init_ittlib() {}
++#endif
++}
++
++// end of file
+diff --git openmp/runtime/src/kmp_utility.cpp openmp/runtime/src/kmp_utility.cpp
+index 48d31e5ee7b7..5937f8026e39 100644
+--- openmp/runtime/src/kmp_utility.cpp
++++ openmp/runtime/src/kmp_utility.cpp
+@@ -403,3 +403,16 @@ void __kmp_expand_file_name(char *result, size_t rlen, char *pattern) {
+ 
+   *pos = '\0';
+ }
++
++#if !OMPT_SUPPORT
++extern "C" {
++typedef struct ompt_start_tool_result_t ompt_start_tool_result_t;
++// Define symbols expected by VERSION script
++ompt_start_tool_result_t *ompt_start_tool(unsigned int omp_version,
++                                          const char *runtime_version) {
++  return nullptr;
++}
++
++void ompt_libomp_connect(ompt_start_tool_result_t *result) { result = nullptr; }
++}
++#endif
+diff --git openmp/runtime/src/z_Linux_util.cpp openmp/runtime/src/z_Linux_util.cpp
+index 5cd6ad6a0339..f6cad7b5320a 100644
+--- openmp/runtime/src/z_Linux_util.cpp
++++ openmp/runtime/src/z_Linux_util.cpp
+@@ -987,7 +987,7 @@ void __kmp_exit_thread(int exit_status) {
+ #if KMP_USE_MONITOR
+ void __kmp_resume_monitor();
+ 
+-void __kmp_reap_monitor(kmp_info_t *th) {
++extern "C" void __kmp_reap_monitor(kmp_info_t *th) {
+   int status;
+   void *exit_val;
+ 
+@@ -1029,6 +1029,12 @@ void __kmp_reap_monitor(kmp_info_t *th) {
+ 
+   KMP_MB(); /* Flush all pending memory write invalidates.  */
+ }
++#else
++// Empty symbol to export (see exports_so.txt) when
++// monitor thread feature is disabled
++extern "C" void __kmp_reap_monitor(kmp_info_t *th) {
++  (void)th;
++}
+ #endif // KMP_USE_MONITOR
+ 
+ void __kmp_reap_worker(kmp_info_t *th) {