a1abd9761c
For a long time, when cross-building, say from native=amd64 to
target=powerpc, it was necessary to:
1. cross-build a _powerpc_ package called cross-libtool-base-powerpc,
and then
2. install the powerpc package _natively_ with `pkg_add -m x86_64' to
override the architecture check that normally forbids this kind of
shenanigans,
in order to cross-build anything that uses libtool as a tool.
This is partly because libtool doesn't follow the normal GNU
convention of `./configure --build=<native platform> --host=<platform
package will run on> --target=<platform package is configured to
operate on>' -- in this example, build=amd64, host=amd64,
target=powerpc.
Instead, libtool expects to be cross-built itself, even if it's going
to run as a tool. It's not as bonkers as it sounds at first: libtool
is just a shell script, and it caches various information about the
(cross-building!) toolchain it is built with so it can use that
information later when it is run as a tool itself to cross-compile
other software.
To make this work, we need to create the toolchain wrappers for
libtool _as if_ we were cross-building even if we are building a
native package. So mk/tools uses a new flag TOOLS_USE_CROSS_COMPILE
instead of USE_CROSS_COMPILE, and libtool internally sets
MACHINE_ARCH=${TARGET_ARCH} (in the example above, powerpc) to make
it look like we're cross-building. The new TOOLS_CROSS_DESTDIR is an
alias for the (defaulted) CROSS_DESTDIR, which must now be set
unconditionally in mk.conf in order for libtool to know where the
cross-destdir will be; _CROSS_DESTDIR remains empty when building any
native packages (including the native cross-libtool package).
Finally, we need to make the resulting package be a native package,
with MACHINE_ARCH set to the one that it will be installed on (in the
example above, amd64), so I added an indirection _BUILD_DEFS.${var}
to replace var on its own in the build definitions that get baked
into the package, shown by `pkg_info -B'. Setting
_BUILD_DEFS.MACHINE_ARCH=${NATIVE_MACHINE_ARCH} ensures that this
mutant hybrid cross-built libtool still produces a native package.
All of this logic is gated on setting USE_CROSS_COMPILE in mk.conf or
LIBTOOL_CROSS_COMPILE in the package makefile, so it should be safe
for non-cross-builds -- when USE_CROSS_COMPILE=no and you're not
building cross-libtool, everything is as before.
170 lines
5.5 KiB
Makefile
170 lines
5.5 KiB
Makefile
# $NetBSD: cwrappers.mk,v 1.35 2022/04/04 11:23:06 riastradh Exp $
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#
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# This Makefile fragment implements integration of pkgtools/cwrappers.
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.include "../../mk/wrapper/wrapper-defs.mk"
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.include "../../mk/buildlink3/bsd.buildlink3.mk"
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TOOL_DEPENDS+= cwrappers>=20220403:../../pkgtools/cwrappers
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# XXX This should be PREFIX, but USE_CROSSBASE overrides it.
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CWRAPPERS_SRC_DIR= ${LOCALBASE}/libexec/cwrappers
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CWRAPPERS_CONFIG_DIR= ${WRKDIR}/.cwrapper/config
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CONFIGURE_ENV+= CWRAPPERS_CONFIG_DIR=${CWRAPPERS_CONFIG_DIR}
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MAKE_ENV+= CWRAPPERS_CONFIG_DIR=${CWRAPPERS_CONFIG_DIR}
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ALL_ENV+= CWRAPPERS_CONFIG_DIR=${CWRAPPERS_CONFIG_DIR}
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# TODO: Fix direct calls to CC and LIBTOOL to provide correct environment.
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.export CWRAPPERS_CONFIG_DIR
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CWRAPPERS_CONFIG.as= as
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CWRAPPERS_CONFIG.cc= cc
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CWRAPPERS_CONFIG.cxx= c++
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CWRAPPERS_CONFIG.cpp= cpp
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CWRAPPERS_CONFIG.f77= f77
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CWRAPPERS_CONFIG.imake= imake
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CWRAPPERS_CONFIG.ld= ld
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CWRAPPERS_CONFIG.libtool= libtool
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CWRAPPERS_CONFIG.shlibtool= shlibtool
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CWRAPPERS_ALIASES.as= as
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CWRAPPERS_ALIASES.cc= cc gcc clang
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CWRAPPERS_ALIASES.cxx= c++ g++ cxx clang++
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CWRAPPERS_ALIASES.cpp= cpp clang-cpp
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CWRAPPERS_ALIASES.f77= f77 g77 gfortran
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CWRAPPERS_ALIASES.imake= imake
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CWRAPPERS_ALIASES.ld= ld
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CWRAPPERS_ALIASES.libtool= libtool
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CWRAPPERS_ALIASES.shlibtool= shlibtool
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.if !empty(TOOLS_USE_CROSS_COMPILE:M[yY][eE][sS])
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CWRAPPERS_ALIASES.cc+= ${CC:T}
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CWRAPPERS_ALIASES.cxx+= ${CXX:T}
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CWRAPPERS_ALIASES.ld+= ${LD:T}
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.endif
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CWRAPPERS_WRAPPEE.as= ${AS:Ufalse}
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CWRAPPERS_WRAPPEE.cxx= ${PKG_CXX:Ufalse}
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CWRAPPERS_WRAPPEE.cc= ${PKG_CC:Ufalse}
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CWRAPPERS_WRAPPEE.cpp= ${PKG_CPP:Ufalse}
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CWRAPPERS_WRAPPEE.f77= ${PKG_FC:Ufalse}
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CWRAPPERS_WRAPPEE.imake= ${TOOLS_PATH.imake:Ufalse}
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CWRAPPERS_WRAPPEE.ld= ${LD:Ufalse}
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CWRAPPERS_WRAPPEE.libtool= ${PKG_LIBTOOL:Ufalse}
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CWRAPPERS_WRAPPEE.shlibtool= ${PKG_SHLIBTOOL:Ufalse}
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# TODO: Find and fix packages depending on the implicit include path.
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CWRAPPERS_APPEND.cc+= -I${PREFIX}/include
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CWRAPPERS_APPEND.cxx+= -I${PREFIX}/include
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CWRAPPERS_APPEND.cpp+= -I${PREFIX}/include
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.if defined(USE_IMAKE) || !empty(USE_TOOLS:Mimake)
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CWRAPPERS_TRANSFORM.imake+= I:${PREFIX}/lib/X11/config:${PREFIX}/lib/X11/config
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CWRAPPERS_APPEND.imake+= ${IMAKEOPTS}
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.endif
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.PHONY: generate-cwrappers
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.for _target_ in ${WRAPPER_TARGETS}
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generate-cwrappers: ${_target_}
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.endfor
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generate-cwrappers:
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.for wrappee in as cxx cc cpp f77 imake ld libtool shlibtool
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${RUN}echo worklog=${WRKLOG:Q} > ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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${RUN}echo wrksrc=${WRKSRC:Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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${RUN}case ${wrappee} in *libtool) ;; *) echo path=${_PATH_COMPONENTS:N${WRAPPER_BINDIR}:ts::Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}};; esac
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${RUN}echo exec_path=${WRAPPER_BINDIR}/${CWRAPPERS_ALIASES.${wrappee}:[1]} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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${RUN}echo exec=${CWRAPPERS_WRAPPEE.${wrappee}:Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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. for cmd in ${WRAPPER_REORDER_CMDS}
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${RUN}echo reorder=${cmd:S/^reorder://:Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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. endfor
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. for cmd in ${CWRAPPERS_TRANSFORM.${wrappee}} ${_CWRAPPERS_TRANSFORM}
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${RUN}echo transform=${cmd:u:Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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. endfor
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. for cmd in ${CWRAPPERS_APPEND.${wrappee}:U}
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${RUN}echo append=${cmd:Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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. endfor
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. for cmd in ${CWRAPPERS_PREPEND.${wrappee}:U}
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${RUN}echo prepend=${cmd:Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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. endfor
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. for cmd in ${_CWRAPPERS_UNWRAP}
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${RUN}echo unwrap=${cmd:Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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. endfor
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. for alias in ${CWRAPPERS_ALIASES.${wrappee}}
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${RUN}ln -s ${CWRAPPERS_SRC_DIR}/${CWRAPPERS_CONFIG.${wrappee}}-wrapper ${WRAPPER_BINDIR}/${alias}
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. endfor
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. if ${_PKGSRC_MKPIE} == "yes"
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. if ${PKGSRC_OVERRIDE_MKPIE:tl} == "no"
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. for arg in ${_MKPIE_LDFLAGS}
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${RUN}echo append_executable=${arg} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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. endfor
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. endif
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. endif
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. if !empty(TOOLS_USE_CROSS_COMPILE:M[yY][eE][sS])
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${RUN}echo sysroot=${TOOLS_CROSS_DESTDIR:Q} >> ${CWRAPPERS_CONFIG_DIR}/${CWRAPPERS_CONFIG.${wrappee}}
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. endif
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.endfor
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PREPEND_PATH+= ${WRAPPER_BINDIR}
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_COOKIE.wrapper= ${WRKDIR}/.wrapper_done
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.PHONY: wrapper
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.if !target(wrapper)
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. if exists(${_COOKIE.wrapper}) && !${_CLEANING}
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wrapper:
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@${DO_NADA}
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. elif defined(_PKGSRC_BARRIER)
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wrapper: check-vulnerable patch acquire-wrapper-lock ${_COOKIE.wrapper} release-wrapper-lock
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. else
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wrapper: barrier
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. endif
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.endif
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.PHONY: acquire-wrapper-lock release-wrapper-lock
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acquire-wrapper-lock: acquire-lock
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release-wrapper-lock: release-lock
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.if exists(${_COOKIE.wrapper}) && !${_CLEANING}
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${_COOKIE.wrapper}:
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@${DO_NADA}
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.else
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${_COOKIE.wrapper}: real-wrapper
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.endif
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.PHONY: real-wrapper
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real-wrapper: wrapper-message wrapper-dirs wrapper-vars pre-wrapper do-wrapper post-wrapper wrapper-cookie error-check
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.PHONY: wrapper-message
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wrapper-message:
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@${PHASE_MSG} "Creating toolchain wrappers for ${PKGNAME}"
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.PHONY: wrapper-dirs
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wrapper-dirs:
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${RUN}${MKDIR} ${CWRAPPERS_CONFIG_DIR} ${WRAPPER_BINDIR}
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.PHONY: pre-wrapper do-wrapper post-wrapper
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do-wrapper: generate-cwrappers
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.if !target(do-wrapper)
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do-wrapper:
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@${DO_NADA}
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.endif
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.if !target(pre-wrapper)
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pre-wrapper:
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@${DO_NADA}
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.endif
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.if !target(post-wrapper)
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post-wrapper:
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@${DO_NADA}
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.endif
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.PHONY: wrapper-cookie
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wrapper-cookie:
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${RUN} [ ! -f ${_COOKIE.wrapper} ]
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${RUN} ${MKDIR} ${_COOKIE.wrapper:H}
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${RUN} ${ECHO} ${PKGNAME} > ${_COOKIE.wrapper}
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