Date: Wed, 25 Mar 2015 21:59:37 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r280639 - head Message-ID: <201503252159.t2PLxbpo026850@svn.freebsd.org>
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Author: imp Date: Wed Mar 25 21:59:36 2015 New Revision: 280639 URL: https://svnweb.freebsd.org/changeset/base/280639 Log: Add some more explanation to the different phases of the build. Modified: head/Makefile.inc1 Modified: head/Makefile.inc1 ============================================================================== --- head/Makefile.inc1 Wed Mar 25 21:57:03 2015 (r280638) +++ head/Makefile.inc1 Wed Mar 25 21:59:36 2015 (r280639) @@ -209,7 +209,9 @@ INSTALLTMP!= /usr/bin/mktemp -d -u -t in # 1. legacy stage [BMAKE] # This stage is responsible for creating compatibility # shims that are needed by the bootstrap-tools, -# build-tools and cross-tools stages. +# build-tools and cross-tools stages. These are generally +# APIs that tools from one of those three stages need to +# build that aren't present on the host. # 1. bootstrap-tools stage [BMAKE] # This stage is responsible for creating programs that # are needed for backward compatibility reasons. They @@ -220,7 +222,7 @@ INSTALLTMP!= /usr/bin/mktemp -d -u -t in # the build process. # 3. cross-tools stage [XMAKE] # This stage is responsible for creating any tools that -# are needed for cross-builds. A cross-compiler is one +# are needed for building the system. A cross-compiler is one # of them. # 4. world stage [WMAKE] # This stage actually builds the world. @@ -1222,7 +1224,9 @@ update: # # -# legacy: Build compatibility shims for the next three targets +# legacy: Build compatibility shims for the next three targets. This is a minimal +# set of tools and shims necessary to compensate for older systems which don't have +# the APIs that the targets built in bootstrap-tools, build-tools or cross-tools. # legacy: .if ${BOOTSTRAPPING} < 800107 && ${BOOTSTRAPPING} != 0 @@ -1240,7 +1244,10 @@ legacy: .endfor # -# bootstrap-tools: Build tools needed for compatibility +# bootstrap-tools: Build tools needed for compatibility. These are binaries that +# are built to build other binaries in the system. However, the focus of these +# binaries is usually quite narrow. Bootstrap tools use the host's compiler and +# libraries, augmented by -legacy. # _bt= _bootstrap-tools @@ -1446,7 +1453,9 @@ kernel-tools: .MAKE -p ${MAKEOBJDIRPREFIX}/usr >/dev/null # -# cross-tools: Build cross-building tools +# cross-tools: All the tools needed to build the rest of the system after +# we get done with the earlier stages. It is the last set of tools needed +# to begin building the target binaries. # .if ${TARGET_ARCH} != ${MACHINE_ARCH} .if ${TARGET_ARCH} == "amd64" || ${TARGET_ARCH} == "i386"
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