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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