freebsd-dev/tools/build/Makefile
Jessica Clarke 968a3db715 kbdcontrol: Support building as a bootstrap tool on old and non-FreeBSD
Systems that predate 971bac5ace ("kbd: consolidate kb interfaces
(phase one)") cannot build kbdcontrol since kbdelays and kbrates moved
to sys/kbio.h. Moreover, on non-FreeBSD, it requires all kinds of ioctls
and sysctls that are highly FreeBSD-specific to build, but we use it as
a bootstrap tool to generate the keymaps used by some kernels (LINT ones
in particular). Thus, when bootstrapping kbdcontrol, disable everything
that's not needed for that singular use, and use the in-tree kbio.h to
get the definitions of the necessary structures.

This allows KBDMUX_DFLT_KEYMAP, UKBD_DFLT_KEYMAP and ATKBD_DFLT_KEYMAP
to be enabled when building on non-FreeBSD, and thus LINT kernels.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D41541
2023-08-22 21:00:28 +01:00

437 lines
15 KiB
Makefile

.PATH: ${.CURDIR}/../../include
LIB= egacy
SRC=
INCSGROUPS= INCS SYSINCS CASPERINC UFSINCS FFSINCS MSDOSFSINCS DISKINCS
INCSGROUPS+= MACHINESYSINCS RPCINCS
INCS=
SYSINCSDIR= ${INCLUDEDIR}/sys
CASPERINCDIR= ${INCLUDEDIR}/casper
# Also add ufs/ffs/msdosfs/disk headers to allow building makefs as a bootstrap tool
UFSINCSDIR= ${INCLUDEDIR}/ufs/ufs
FFSINCSDIR= ${INCLUDEDIR}/ufs/ffs
MSDOSFSINCSDIR= ${INCLUDEDIR}/fs/msdosfs
DISKINCSDIR= ${INCLUDEDIR}/sys/disk
MACHINESYSINCSDIR= ${INCLUDEDIR}/machine
RPCINCSDIR= ${INCLUDEDIR}/rpc
BOOTSTRAPPING?= 0
.if ${.MAKE.OS} == "Darwin"
_XCODE_ROOT!=xcode-select -p
# since macOS 10.14 C headers are no longer installed in /usr but only
# provided via the SDK
.if ${_XCODE_ROOT} == "/Library/Developer/CommandLineTools"
# Only command line tools installed -> host headers are in the SDKs directory
_MACOS_SDK_DIR=${_XCODE_ROOT}/SDKs/MacOSX.sdk/
.else
# Full XCode installed -> host headers are below Platforms/MacOSX.platform
_MACOS_SDK_DIR=${_XCODE_ROOT}/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk
.endif
HOST_INCLUDE_ROOT=${_MACOS_SDK_DIR}/usr/include
.if !exists(${HOST_INCLUDE_ROOT}/stdio.h)
.error You must install the macOS SDK (try xcode-select --install)
.endif
.else
HOST_INCLUDE_ROOT=/usr/include
.endif
# Allow building libc-internal files (also on non-FreeBSD hosts)
CFLAGS+= -I${.CURDIR}/libc-bootstrap
# Symbol versioning is not required for -legacy (and macOS bootstrap)
MK_SYMVER= no
_WITH_PWCACHEDB!= grep -c pwcache_groupdb ${HOST_INCLUDE_ROOT}/grp.h || true
.if ${_WITH_PWCACHEDB} == 0
.PATH: ${.CURDIR}/../../contrib/libc-pwcache
CFLAGS.pwcache.c+= -I${.CURDIR}/../../contrib/libc-pwcache
SRCS+= pwcache.c
.endif
_WITH_STRSVIS!= grep -c strsvis ${HOST_INCLUDE_ROOT}/vis.h 2>/dev/null || true
.if ${_WITH_STRSVIS} == 0
.PATH: ${.CURDIR}/../../contrib/libc-vis
INCS+= vis.h
SRCS+= vis.c unvis.c
CFLAGS.vis.c+= -I${.CURDIR}/../../contrib/libc-vis -DHAVE_VIS=0 -DHAVE_SVIS=0
CFLAGS.unvis.c+= -I${.CURDIR}/../../contrib/libc-vis -DHAVE_VIS=0 -DHAVE_SVIS=0
.endif
_WITH_REALLOCARRAY!= grep -c reallocarray ${HOST_INCLUDE_ROOT}/stdlib.h || true
.if ${_WITH_REALLOCARRAY} == 0
.PATH: ${.CURDIR}/../../lib/libc/stdlib
INCS+= stdlib.h
SRCS+= reallocarray.c
.endif
.if exists(${HOST_INCLUDE_ROOT}/sys/stat.h)
_WITH_UTIMENS!= grep -c utimensat ${HOST_INCLUDE_ROOT}/sys/stat.h || true
.else
_WITH_UTIMENS= 0
.endif
.if ${_WITH_UTIMENS} == 0
SYSINCS+= stat.h
SRCS+= futimens.c utimensat.c
.endif
_WITH_EXPLICIT_BZERO!= cat ${HOST_INCLUDE_ROOT}/strings.h ${HOST_INCLUDE_ROOT}/string.h | grep -c explicit_bzero || true
.if ${_WITH_EXPLICIT_BZERO} == 0
# .PATH: ${SRCTOP}/sys/libkern
# Adding sys/libkern to .PATH breaks building the cross-build compat library
# since that attempts to build strlcpy.c from libc and adding libkern here will
# cause it to pick the file from libkern instead (which won't compile).
# Avoid modifying .PATH by creating a copy in the build directory instead.
explicit_bzero.c: ${SRCTOP}/sys/libkern/explicit_bzero.c
cp ${.ALLSRC} ${.TARGET}
CLEANFILES+= explicit_bzero.c
INCS+= strings.h
SRCS+= explicit_bzero.c
.endif
_WITH_FSPACECTL!= grep -c fspacectl ${HOST_INCLUDE_ROOT}/fcntl.h || true
.if ${_WITH_FSPACECTL} == 0
INCS+= fcntl.h
SRCS+= fspacectl.c
.endif
.if exists(${HOST_INCLUDE_ROOT}/capsicum_helpers.h)
_WITH_CAPH_ENTER!= grep -c caph_enter ${HOST_INCLUDE_ROOT}/capsicum_helpers.h || true
_WITH_CAPH_RIGHTS_LIMIT!= grep -c caph_rights_limit ${HOST_INCLUDE_ROOT}/capsicum_helpers.h || true
.endif
.if !defined(_WITH_CAPH_ENTER) || ${_WITH_CAPH_ENTER} == 0 || ${_WITH_CAPH_RIGHTS_LIMIT} == 0
.PATH: ${SRCTOP}/lib/libcapsicum
INCS+= capsicum_helpers.h
.PATH: ${SRCTOP}/lib/libcasper/libcasper
INCS+= libcasper.h
.endif
# rpcgen should build against the source tree rpc/types.h and not the host.
# This is especially important on non-FreeBSD systems where the types may
# not match.
RPCINCS+= ${SRCTOP}/sys/rpc/types.h
INCS+= ${SRCTOP}/include/mpool.h
INCS+= ${SRCTOP}/include/ndbm.h
INCS+= ${SRCTOP}/include/err.h
INCS+= ${SRCTOP}/include/stringlist.h
# Needed to build arc4random.c
INCSGROUPS+= CHACHA20INCS
CHACHA20INCSDIR= ${INCLUDEDIR}/crypto/chacha20
CHACHA20INCS+= ${SRCTOP}/sys/crypto/chacha20/_chacha.h \
${SRCTOP}/sys/crypto/chacha20/chacha.h
.if ${MACHINE} == "host"
_host_arch= ${_HOST_ARCH}
.else
_host_arch=${MACHINE}
.endif
.if ${_host_arch} == "x86_64"
# bmake on Linux/mac often prints that instead of amd64
_host_arch=amd64
.elif ${_host_arch} == "aarch64"
# Linux calls arm64, aarch64, across the board
_host_arch=arm64
.elif ${_host_arch:Mppc*}
_host_arch=powerpc
.endif
.if ${_host_arch} == "unknown"
# HACK: If MACHINE is unknown, assume we are building on x86
_host_arch=amd64
.endif
MACHINESYSINCS+= ${SRCTOP}/sys/${_host_arch}/include/elf.h
.if ${_host_arch} == "amd64" || ${_host_arch} == "i386"
INCSGROUPS+= X86INCS
X86INCSDIR= ${INCLUDEDIR}/x86
X86INCS+= ${SRCTOP}/sys/x86/include/elf.h
.endif
# needed for btxld:
MACHINESYSINCS+= ${SRCTOP}/sys/${_host_arch}/include/exec.h
MACHINESYSINCS+= ${SRCTOP}/sys/${_host_arch}/include/reloc.h
INCS+= ${SRCTOP}/include/a.out.h
INCS+= ${SRCTOP}/include/nlist.h
SYSINCS+= ${SRCTOP}/sys/sys/imgact_aout.h
SYSINCS+= ${SRCTOP}/sys/sys/nlist_aout.h
# macOS's bitstring lacks FreeBSD-specific additions used by makefs's ZFS code
# and Linux doesn't have it at all. Older FreeBSD versions lack recent
# additions.
INCS+= ${SRCTOP}/include/bitstring.h
SYSINCS+= ${SRCTOP}/sys/sys/bitstring.h
.if ${.MAKE.OS} != "FreeBSD"
.PATH: ${.CURDIR}/cross-build
# Needed by our sys/types.h wrapper
SYSINCS+= ${SRCTOP}/sys/sys/bitcount.h
# dbopen() behaves differently on Linux and FreeBSD so we ensure that we
# bootstrap the FreeBSD db code. The cross-build headers #define dbopen() to
# __freebsd_dbopen() so that we don't ever use the host version
INCS+= ${SRCTOP}/include/db.h
LIBC_SRCTOP= ${SRCTOP}/lib/libc/
.include "${LIBC_SRCTOP}/db/Makefile.inc"
# Do the same as we did for dbopen() for getopt() on since it's not compatible
# on Linux (and to avoid surprises also compile the FreeBSD code on macOS)
.PATH: ${LIBC_SRCTOP}/stdlib
SRCS+= getopt.c getopt_long.c
INCS+= ${SRCTOP}/include/getopt.h
# getcap.c is needed for cap_mkdb:
.PATH: ${LIBC_SRCTOP}/gen
SRCS+= getcap.c
# Glibc does not provide all err*/warn* functions, and for macOS we need the
# alias with the extra underscore.
SRCS+= err.c
# Add various libbc functions that are not available in glibc:
SRCS+= stringlist.c setmode.c
SRCS+= strtonum.c merge.c heapsort.c reallocf.c
.PATH: ${LIBC_SRCTOP}/locale
SRCS+= rpmatch.c
.if ${.MAKE.OS} == "Linux"
# On Linux, glibc does not provide strlcpy,strlcat or strmode.
.PATH: ${LIBC_SRCTOP}/string
SRCS+= strlcpy.c strlcat.c strmode.c
# On Linux, glibc provides ffs* but not fls*
SRCS+= fls.c flsl.c flsll.c
# Compile the fgetln/fgetwln/closefrom fallback code from libbsd:
SRCS+= fgetln_fallback.c fgetwln_fallback.c closefrom.c
CFLAGS.closefrom.c+= -DSTDC_HEADERS -DHAVE_SYS_DIR_H -DHAVE_DIRENT_H \
-DHAVE_DIRFD -DHAVE_SYSCONF
# Provide getprogname/setprograme
SRCS+= progname.c
# Stub implementations of fflagstostr/strtofflags
SRCS+= fflags.c
.endif # ${MAKE.OS} == "Linux"
.if ${.MAKE.OS} == "Darwin"
# Standalone implementation of secure_getenv(), not available on MacOS.
SRCS+= secure_getenv.c
.endif # ${MAKE.OS} == "Darwin"
# Provide the same arc4random implementation on Linux/macOS
CFLAGS.arc4random.c+= -I${SRCTOP}/sys/crypto/chacha20 -D__isthreaded=1
SRCS+= arc4random.c arc4random_uniform.c
# expand_number() is not provided by either Linux or MacOS libutil
.PATH: ${SRCTOP}/lib/libutil
SRCS+= expand_number.c
# Linux libutil also doesn't have fparseln
SRCS+= fparseln.c
# A dummy sysctl for tzsetup:
SRCS+= fake_sysctl.c
# capsicum support
SYSINCS+= ${SRCTOP}/sys/sys/capsicum.h
SYSINCS+= ${SRCTOP}/sys/sys/caprights.h
SRCS+= capsicum_stubs.c
# XXX: we can't add ${SRCTOP}/sys/kern to .PATH since that will causes
# conflicts with other files. Instead copy subr_capability to the build dir.
subr_capability.c: ${SRCTOP}/sys/kern/subr_capability.c
cp ${.ALLSRC} ${.TARGET}
SRCS+= subr_capability.c
CLEANFILES+= subr_capability.c
.endif # ${MAKE.OS} != "FreeBSD"
CASPERINC+= ${SRCTOP}/lib/libcasper/services/cap_fileargs/cap_fileargs.h
CASPERINC+= ${SRCTOP}/lib/libcasper/services/cap_net/cap_net.h
.if empty(SRCS)
SRCS= dummy.c
.endif
.if defined(CROSS_BUILD_TESTING)
SUBDIR= cross-build
.endif
# To allow bootstrapping makefs on FreeBSD 11 or non-FreeBSD systems:
UFSINCS+= ${SRCTOP}/sys/ufs/ufs/dinode.h
UFSINCS+= ${SRCTOP}/sys/ufs/ufs/dir.h
FFSINCS+= ${SRCTOP}/sys/ufs/ffs/fs.h
MSDOSFSINCS+= ${SRCTOP}/sys/fs/msdosfs/bootsect.h
MSDOSFSINCS+= ${SRCTOP}/sys/fs/msdosfs/bpb.h
MSDOSFSINCS+= ${SRCTOP}/sys/fs/msdosfs/denode.h
MSDOSFSINCS+= ${SRCTOP}/sys/fs/msdosfs/direntry.h
MSDOSFSINCS+= ${SRCTOP}/sys/fs/msdosfs/fat.h
MSDOSFSINCS+= ${SRCTOP}/sys/fs/msdosfs/msdosfsmount.h
DISKINCS+= ${SRCTOP}/sys/sys/disk/bsd.h
# Needed to build config (since it uses libnv)
SYSINCS+= ${SRCTOP}/sys/sys/nv.h ${SRCTOP}/sys/sys/cnv.h \
${SRCTOP}/sys/sys/dnv.h ${SRCTOP}/sys/sys/nv_namespace.h
# Needed when bootstrapping ldd (since it uses DF_1_PIE)
SYSINCS+= ${SRCTOP}/sys/sys/elf32.h
SYSINCS+= ${SRCTOP}/sys/sys/elf64.h
SYSINCS+= ${SRCTOP}/sys/sys/elf_common.h
SYSINCS+= ${SRCTOP}/sys/sys/elf_generic.h
SYSINCS+= ${SRCTOP}/sys/sys/queue.h
SYSINCS+= ${SRCTOP}/sys/sys/md5.h
SYSINCS+= ${SRCTOP}/sys/sys/sbuf.h
SYSINCS+= ${SRCTOP}/sys/sys/tree.h
# vtfontcvt is using sys/font.h
SYSINCS+= ${SRCTOP}/sys/sys/font.h
# For mkscrfil.c:
SYSINCS+= ${SRCTOP}/sys/sys/consio.h
# for gencat:
INCS+= ${SRCTOP}/include/nl_types.h
# for vtfontcvt:
SYSINCS+= ${SRCTOP}/sys/sys/fnv_hash.h
# opensolaris compatibility
INCS+= ${SRCTOP}/include/elf.h
SYSINCS+= ${SRCTOP}/sys/sys/elf.h
SYSINCS+= ${SRCTOP}/sys/sys/ctf.h
# for kbdcontrol:
SYSINCS+= ${SRCTOP}/sys/sys/kbio.h
# We want to run the build with only ${WORLDTMP} in $PATH to ensure we don't
# accidentally run tools that are incompatible but happen to be in $PATH.
# This is especially important when building on Linux/MacOS where many of the
# programs used during the build accept different flags or generate different
# output. On those platforms we only symlink the tools known to be compatible
# (e.g. basic utilities such as mkdir) into ${WORLDTMP} and build all others
# from the FreeBSD sources during the bootstrap-tools stage.
# basic commands: It is fine to use the host version for all of these even on
# Linux/MacOS since we only use flags that are supported by all of them.
_host_tools_to_symlink= basename bzip2 bunzip2 chmod chown cmp comm cp date dd \
dirname echo env false find fmt gzip gunzip head hostname id ln ls \
mkdir mv nice patch rm sh sleep stat tee time touch tr true uname uniq \
unxz wc which xz
# We also need a symlink to the absolute path to the make binary used for
# the toplevel makefile. This is not necessarily the same as `which make`
# since e.g. on Linux and MacOS that will be GNU make.
_make_abs!= which "${MAKE}"
_host_abs_tools_to_symlink= ${_make_abs}:make ${_make_abs}:bmake
_LINK_HOST_TOOL= ln -sfn
.if ${.MAKE.OS} == "FreeBSD"
# When building on FreeBSD we always copy the host tools instead of linking
# into WORLDTMP to avoid issues with incompatible libraries (see r364030).
# Note: we could create links if we don't intend to update the current machine.
_COPY_HOST_TOOL= cp -pf
.else
# However, this is not necessary on Linux/macOS. Additionally, copying the host
# tools to another directory with cp -p results in freezes on macOS Big Sur for
# some unknown reason. It can also break building inside docker containers if
# there are ACLs on shared volumes.
_COPY_HOST_TOOL= ${_LINK_HOST_TOOL}
.if ${.MAKE.OS} == "Darwin"
# /usr/bin/cpp may invoke xcrun:
_host_tools_to_symlink+= xcrun
.endif # ${.MAKE.OS} == "Darwin"
# On Ubuntu /bin/sh is dash which is totally useless, and the same for modern
# macOS. Let's just link bash as the build sh since that will work fine.
_host_abs_tools_to_symlink+= /bin/bash:sh
_host_tools_to_symlink:= ${_host_tools_to_symlink:Nsh}
.endif
# We also need to symlink any non-absolute toolchain commands. Clang finds its
# resource directory relative to itself, so CC/CXX/CPP cannot be copied, and
# there should be no concerns about installing over the current system since we
# don't use the toolchain during install, so that's not an issue. However,
# before Clang 13 there was no symlink detection for FreeBSD so that was broken
# in the same way as copying (https://reviews.llvm.org/D103346), thus create a
# wrapper script for each to work around this and behave like a symlink.
# Remove this hack and just use a symlink once Clang 13 can be assumed.
# For consistency, we use the same strategy for LD.
.include <bsd.compiler.mk>
.if ${.MAKE.OS} == "FreeBSD" && ${COMPILER_TYPE} == "clang" && \
${COMPILER_VERSION} < 130000
_WRAP_HOST_TOOL= sh -c "printf '\#!/bin/sh\nexec \"\%s\" \"\$$@\"\n' \"\$$0\" > \"\$$1\" && chmod +x \"\$$1\""
.else
_WRAP_HOST_TOOL= ${_LINK_HOST_TOOL}
.endif
.for var in CC CXX CPP LD
.for X in $${_empty_var_} X
.if !empty(${X}${var}) && !${${X}${var}:M/*} && \
!${_toolchain_tools_to_symlink:U:M${${X}${var}}}
_toolchain_tools_to_symlink+= ${${X}${var}}
.endif
.endfor
.endfor
host-symlinks:
@echo "Linking host tools into ${DESTDIR}/bin"
.for _tool in ${_host_tools_to_symlink}
@export PATH=$${PATH}:/usr/local/bin; \
source_path=`which ${_tool} || echo /dev/null/no/such`; \
if [ ! -e "$${source_path}" ] ; then \
echo "Cannot find host tool '${_tool}' in PATH ($$PATH)." >&2; false; \
fi; \
rm -f "${DESTDIR}/bin/${_tool}"; \
${_COPY_HOST_TOOL} "$${source_path}" "${DESTDIR}/bin/${_tool}"
.endfor
.for _tool in ${_host_abs_tools_to_symlink}
@source_path="${_tool:S/:/ /:[1]}"; \
target_path="${DESTDIR}/bin/${_tool:S/:/ /:[2]}"; \
if [ ! -e "$${source_path}" ] ; then \
echo "Host tool '$${source_path}' is missing"; false; \
fi; \
rm -f "$${target_path}"; \
${_COPY_HOST_TOOL} "$${source_path}" "$${target_path}"
.endfor
.if exists(/usr/libexec/flua)
rm -f ${DESTDIR}/usr/libexec/flua
${_COPY_HOST_TOOL} /usr/libexec/flua ${DESTDIR}/usr/libexec/flua
.endif
.for _tool in ${_toolchain_tools_to_symlink}
@export PATH=$${PATH}:/usr/local/bin; \
source_path=`which ${_tool} || echo /dev/null/no/such`; \
if [ ! -e "$${source_path}" ] ; then \
echo "Cannot find host tool '${_tool}' in PATH ($$PATH)." >&2; false; \
fi; \
rm -f "${DESTDIR}/bin/${_tool}"; \
${_WRAP_HOST_TOOL} "$${source_path}" "${DESTDIR}/bin/${_tool}"
.endfor
# Create all the directories that are needed during the legacy, bootstrap-tools
# and cross-tools stages. We do this here using mkdir since mtree may not exist
# yet (this happens if we are crossbuilding from Linux/Mac).
INSTALLDIR_LIST= \
bin \
lib/geom \
usr/include/casper \
usr/include/private/ucl \
usr/include/private/zstd \
usr/lib \
usr/libdata/pkgconfig \
usr/libexec
installdirs:
mkdir -p ${INSTALLDIR_LIST:S,^,${DESTDIR}/,}
# Link usr/bin, sbin, and usr/sbin to bin so that it doesn't matter whether a
# bootstrap tool was added to WORLTMP with a symlink or by building it in the
# bootstrap-tools phase. We could also overrride BINDIR when building bootstrap
# tools but adding the symlinks is easier and means all tools are also
# in the directory that they are installed to normally.
.for _dir in sbin usr/sbin usr/bin
# delete existing directories from before r340157
@if [ -e ${DESTDIR}/${_dir} ] && [ ! -L ${DESTDIR}/${_dir} ]; then \
echo "removing old non-symlink ${DESTDIR}/${_dir}"; \
rm -rf "${DESTDIR}/${_dir}"; \
fi
.endfor
ln -sfn bin ${DESTDIR}/sbin
ln -sfn ../bin ${DESTDIR}/usr/bin
ln -sfn ../bin ${DESTDIR}/usr/sbin
.for _group in ${INCSGROUPS:NINCS}
mkdir -p "${DESTDIR}/${${_group}DIR}"
.endfor
.include <bsd.lib.mk>