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tools/build: Create toolchain symlinks for non-absolute compiler/linker
If any of the toolchain variables are not absolute then we need to create a symlink in WORLDTMP/legacy/bin in order to make them available during a BUILD_WITH_STRICT_TMPPATH build. Reviewed by: brooks, jhb Differential Revision: https://reviews.freebsd.org/D41188
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@ -602,9 +602,8 @@ STRICTTMPPATH= ${XPATH}:${BPATH}:${UNIVERSE_TOOLCHAIN_PATH}
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# still allow using the old behaviour (inheriting $PATH) if
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# BUILD_WITH_STRICT_TMPPATH is set to 0 but this will eventually be removed.
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# Currently strict $PATH can cause build failures and does not work yet with
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# USING_SYSTEM_LINKER/USING_SYSTEM_COMPILER. Once these issues have been
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# resolved it will be turned on by default.
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# Currently strict $PATH can cause build failures. Once the remaining issues
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# have been resolved it will be turned on by default.
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BUILD_WITH_STRICT_TMPPATH?=0
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.if defined(CROSSBUILD_HOST)
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# When building on non-FreeBSD we can't rely on the tools in /usr/bin being compatible
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@ -312,6 +312,8 @@ _host_tools_to_symlink= basename bzip2 bunzip2 chmod chown cmp comm cp date dd \
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_make_abs!= which "${MAKE}"
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_host_abs_tools_to_symlink= ${_make_abs}:make ${_make_abs}:bmake
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_LINK_HOST_TOOL= ln -sfn
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.if ${.MAKE.OS} == "FreeBSD"
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# When building on FreeBSD we always copy the host tools instead of linking
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# into WORLDTMP to avoid issues with incompatible libraries (see r364030).
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@ -322,7 +324,7 @@ _COPY_HOST_TOOL= cp -pf
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# tools to another directory with cp -p results in freezes on macOS Big Sur for
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# some unknown reason. It can also break building inside docker containers if
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# there are ACLs on shared volumes.
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_COPY_HOST_TOOL= ln -sfn
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_COPY_HOST_TOOL= ${_LINK_HOST_TOOL}
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.if ${.MAKE.OS} == "Darwin"
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# /usr/bin/cpp may invoke xcrun:
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@ -335,6 +337,20 @@ _host_abs_tools_to_symlink+= /bin/bash:sh
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_host_tools_to_symlink:= ${_host_tools_to_symlink:Nsh}
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.endif
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# We also need to symlink any non-absolute toolchain commands. Clang finds its
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# resource directory relative to itself, so CC/CXX/CPP must be symlinked, and
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# we do the same for LD for consistency. There should be no concerns about
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# installing over the current system since we don't use the toolchain during
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# install.
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.for var in CC CXX CPP LD
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.for X in $${_empty_var_} X
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.if !empty(${X}${var}) && !${${X}${var}:M/*} && \
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!${_toolchain_tools_to_symlink:U:M${${X}${var}}}
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_toolchain_tools_to_symlink+= ${${X}${var}}
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.endif
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.endfor
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.endfor
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host-symlinks:
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@echo "Linking host tools into ${DESTDIR}/bin"
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.for _tool in ${_host_tools_to_symlink}
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@ -359,6 +375,15 @@ host-symlinks:
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rm -f ${DESTDIR}/usr/libexec/flua
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${_COPY_HOST_TOOL} /usr/libexec/flua ${DESTDIR}/usr/libexec/flua
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.endif
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.for _tool in ${_toolchain_tools_to_symlink}
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@export PATH=$${PATH}:/usr/local/bin; \
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source_path=`which ${_tool} || echo /dev/null/no/such`; \
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if [ ! -e "$${source_path}" ] ; then \
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echo "Cannot find host tool '${_tool}' in PATH ($$PATH)." >&2; false; \
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fi; \
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rm -f "${DESTDIR}/bin/${_tool}"; \
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${_LINK_HOST_TOOL} "$${source_path}" "${DESTDIR}/bin/${_tool}"
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.endfor
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# Create all the directories that are needed during the legacy, bootstrap-tools
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# and cross-tools stages. We do this here using mkdir since mtree may not exist
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