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build.sh
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build.sh
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#! /usr/bin/env sh
# $NetBSD: build.sh,v 1.316 2017/04/08 18:22:35 christos Exp $
#
# Copyright (c) 2001-2011 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Todd Vierling and Luke Mewburn.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
# Top level build wrapper, to build or cross-build NetBSD.
#
#
# {{{ Begin shell feature tests.
#
# We try to determine whether or not this script is being run under
# a shell that supports the features that we use. If not, we try to
# re-exec the script under another shell. If we can't find another
# suitable shell, then we print a message and exit.
#
errmsg='' # error message, if not empty
shelltest=false # if true, exit after testing the shell
re_exec_allowed=true # if true, we may exec under another shell
# Parse special command line options in $1. These special options are
# for internal use only, are not documented, and are not valid anywhere
# other than $1.
case "$1" in
"--shelltest")
shelltest=true
re_exec_allowed=false
shift
;;
"--no-re-exec")
re_exec_allowed=false
shift
;;
esac
# Solaris /bin/sh, and other SVR4 shells, do not support "!".
# This is the first feature that we test, because subsequent
# tests use "!".
#
if test -z "$errmsg"; then
if ( eval '! false' ) >/dev/null 2>&1 ; then
:
else
errmsg='Shell does not support "!".'
fi
fi
# Does the shell support functions?
#
if test -z "$errmsg"; then
if ! (
eval 'somefunction() { : ; }'
) >/dev/null 2>&1
then
errmsg='Shell does not support functions.'
fi
fi
# Does the shell support the "local" keyword for variables in functions?
#
# Local variables are not required by SUSv3, but some scripts run during
# the NetBSD build use them.
#
# ksh93 fails this test; it uses an incompatible syntax involving the
# keywords 'function' and 'typeset'.
#
if test -z "$errmsg"; then
if ! (
eval 'f() { local v=2; }; v=1; f && test x"$v" = x"1"'
) >/dev/null 2>&1
then
errmsg='Shell does not support the "local" keyword in functions.'
fi
fi
# Does the shell support ${var%suffix}, ${var#prefix}, and their variants?
#
# We don't bother testing for ${var+value}, ${var-value}, or their variants,
# since shells without those are sure to fail other tests too.
#
if test -z "$errmsg"; then
if ! (
eval 'var=a/b/c ;
test x"${var#*/};${var##*/};${var%/*};${var%%/*}" = \
x"b/c;c;a/b;a" ;'
) >/dev/null 2>&1
then
errmsg='Shell does not support "${var%suffix}" or "${var#prefix}".'
fi
fi
# Does the shell support IFS?
#
# zsh in normal mode (as opposed to "emulate sh" mode) fails this test.
#
if test -z "$errmsg"; then
if ! (
eval 'IFS=: ; v=":a b::c" ; set -- $v ; IFS=+ ;
test x"$#;$1,$2,$3,$4;$*" = x"4;,a b,,c;+a b++c"'
) >/dev/null 2>&1
then
errmsg='Shell does not support IFS word splitting.'
fi
fi
# Does the shell support ${1+"$@"}?
#
# Some versions of zsh fail this test, even in "emulate sh" mode.
#
if test -z "$errmsg"; then
if ! (
eval 'set -- "a a a" "b b b"; set -- ${1+"$@"};
test x"$#;$1;$2" = x"2;a a a;b b b";'
) >/dev/null 2>&1
then
errmsg='Shell does not support ${1+"$@"}.'
fi
fi
# Does the shell support $(...) command substitution?
#
if test -z "$errmsg"; then
if ! (
eval 'var=$(echo abc); test x"$var" = x"abc"'
) >/dev/null 2>&1
then
errmsg='Shell does not support "$(...)" command substitution.'
fi
fi
# Does the shell support $(...) command substitution with
# unbalanced parentheses?
#
# Some shells known to fail this test are: NetBSD /bin/ksh (as of 2009-12),
# bash-3.1, pdksh-5.2.14, zsh-4.2.7 in "emulate sh" mode.
#
if test -z "$errmsg"; then
if ! (
eval 'var=$(case x in x) echo abc;; esac); test x"$var" = x"abc"'
) >/dev/null 2>&1
then
# XXX: This test is ignored because so many shells fail it; instead,
# the NetBSD build avoids using the problematic construct.
: ignore 'Shell does not support "$(...)" with unbalanced ")".'
fi
fi
# Does the shell support getopts or getopt?
#
if test -z "$errmsg"; then
if ! (
eval 'type getopts || type getopt'
) >/dev/null 2>&1
then
errmsg='Shell does not support getopts or getopt.'
fi
fi
#
# If shelltest is true, exit now, reporting whether or not the shell is good.
#
if $shelltest; then
if test -n "$errmsg"; then
echo >&2 "$0: $errmsg"
exit 1
else
exit 0
fi
fi
#
# If the shell was bad, try to exec a better shell, or report an error.
#
# Loops are broken by passing an extra "--no-re-exec" flag to the new
# instance of this script.
#
if test -n "$errmsg"; then
if $re_exec_allowed; then
for othershell in \
"${HOST_SH}" /usr/xpg4/bin/sh ksh ksh88 mksh pdksh dash bash
# NOTE: some shells known not to work are:
# any shell using csh syntax;
# Solaris /bin/sh (missing many modern features);
# ksh93 (incompatible syntax for local variables);
# zsh (many differences, unless run in compatibility mode).
do
test -n "$othershell" || continue
if eval 'type "$othershell"' >/dev/null 2>&1 \
&& "$othershell" "$0" --shelltest >/dev/null 2>&1
then
cat <<EOF
$0: $errmsg
$0: Retrying under $othershell
EOF
HOST_SH="$othershell"
export HOST_SH
exec $othershell "$0" --no-re-exec "$@" # avoid ${1+"$@"}
fi
# If HOST_SH was set, but failed the test above,
# then give up without trying any other shells.
test x"${othershell}" = x"${HOST_SH}" && break
done
fi
#
# If we get here, then the shell is bad, and we either could not
# find a replacement, or were not allowed to try a replacement.
#
cat <<EOF
$0: $errmsg
The NetBSD build system requires a shell that supports modern POSIX
features, as well as the "local" keyword in functions (which is a
widely-implemented but non-standardised feature).
Please re-run this script under a suitable shell. For example:
/path/to/suitable/shell $0 ...
The above command will usually enable build.sh to automatically set
HOST_SH=/path/to/suitable/shell, but if that fails, then you may also
need to explicitly set the HOST_SH environment variable, as follows:
HOST_SH=/path/to/suitable/shell
export HOST_SH
\${HOST_SH} $0 ...
EOF
exit 1
fi
#
# }}} End shell feature tests.
#
progname=${0##*/}
toppid=$$
results=/dev/null
tab=' '
nl='
'
trap "exit 1" 1 2 3 15
bomb()
{
cat >&2 <<ERRORMESSAGE
ERROR: $@
*** BUILD ABORTED ***
ERRORMESSAGE
kill ${toppid} # in case we were invoked from a subshell
exit 1
}
# Quote args to make them safe in the shell.
# Usage: quotedlist="$(shell_quote args...)"
#
# After building up a quoted list, use it by evaling it inside
# double quotes, like this:
# eval "set -- $quotedlist"
# or like this:
# eval "\$command $quotedlist \$filename"
#
shell_quote()
{(
local result=''
local arg qarg
LC_COLLATE=C ; export LC_COLLATE # so [a-zA-Z0-9] works in ASCII
for arg in "$@" ; do
case "${arg}" in
'')
qarg="''"
;;
*[!-./a-zA-Z0-9]*)
# Convert each embedded ' to '\'',
# then insert ' at the beginning of the first line,
# and append ' at the end of the last line.
# Finally, elide unnecessary '' pairs at the
# beginning and end of the result and as part of
# '\'''\'' sequences that result from multiple
# adjacent quotes in he input.
qarg="$(printf "%s\n" "$arg" | \
${SED:-sed} -e "s/'/'\\\\''/g" \
-e "1s/^/'/" -e "\$s/\$/'/" \
-e "1s/^''//" -e "\$s/''\$//" \
-e "s/'''/'/g"
)"
;;
*)
# Arg is not the empty string, and does not contain
# any unsafe characters. Leave it unchanged for
# readability.
qarg="${arg}"
;;
esac
result="${result}${result:+ }${qarg}"
done
printf "%s\n" "$result"
)}
statusmsg()
{
${runcmd} echo "===> $@" | tee -a "${results}"
}
statusmsg2()
{
local msg
msg="${1}"
shift
case "${msg}" in
????????????????*) ;;
??????????*) msg="${msg} ";;
?????*) msg="${msg} ";;
*) msg="${msg} ";;
esac
case "${msg}" in
?????????????????????*) ;;
????????????????????) msg="${msg} ";;
???????????????????) msg="${msg} ";;
??????????????????) msg="${msg} ";;
?????????????????) msg="${msg} ";;
????????????????) msg="${msg} ";;
esac
statusmsg "${msg}$*"
}
warning()
{
statusmsg "Warning: $@"
}
# Find a program in the PATH, and print the result. If not found,
# print a default. If $2 is defined (even if it is an empty string),
# then that is the default; otherwise, $1 is used as the default.
find_in_PATH()
{
local prog="$1"
local result="${2-"$1"}"
local oldIFS="${IFS}"
local dir
IFS=":"
for dir in ${PATH}; do
if [ -x "${dir}/${prog}" ]; then
result="${dir}/${prog}"
break
fi
done
IFS="${oldIFS}"
echo "${result}"
}
# Try to find a working POSIX shell, and set HOST_SH to refer to it.
# Assumes that uname_s, uname_m, and PWD have been set.
set_HOST_SH()
{
# Even if ${HOST_SH} is already defined, we still do the
# sanity checks at the end.
# Solaris has /usr/xpg4/bin/sh.
#
[ -z "${HOST_SH}" ] && [ x"${uname_s}" = x"SunOS" ] && \
[ -x /usr/xpg4/bin/sh ] && HOST_SH="/usr/xpg4/bin/sh"
# Try to get the name of the shell that's running this script,
# by parsing the output from "ps". We assume that, if the host
# system's ps command supports -o comm at all, it will do so
# in the usual way: a one-line header followed by a one-line
# result, possibly including trailing white space. And if the
# host system's ps command doesn't support -o comm, we assume
# that we'll get an error message on stderr and nothing on
# stdout. (We don't try to use ps -o 'comm=' to suppress the
# header line, because that is less widely supported.)
#
# If we get the wrong result here, the user can override it by
# specifying HOST_SH in the environment.
#
[ -z "${HOST_SH}" ] && HOST_SH="$(
(ps -p $$ -o comm | sed -ne "2s/[ ${tab}]*\$//p") 2>/dev/null )"
# If nothing above worked, use "sh". We will later find the
# first directory in the PATH that has a "sh" program.
#
[ -z "${HOST_SH}" ] && HOST_SH="sh"
# If the result so far is not an absolute path, try to prepend
# PWD or search the PATH.
#
case "${HOST_SH}" in
/*) :
;;
*/*) HOST_SH="${PWD}/${HOST_SH}"
;;
*) HOST_SH="$(find_in_PATH "${HOST_SH}")"
;;
esac
# If we don't have an absolute path by now, bomb.
#
case "${HOST_SH}" in
/*) :
;;
*) bomb "HOST_SH=\"${HOST_SH}\" is not an absolute path."
;;
esac
# If HOST_SH is not executable, bomb.
#
[ -x "${HOST_SH}" ] ||
bomb "HOST_SH=\"${HOST_SH}\" is not executable."
# If HOST_SH fails tests, bomb.
# ("$0" may be a path that is no longer valid, because we have
# performed "cd $(dirname $0)", so don't use $0 here.)
#
"${HOST_SH}" build.sh --shelltest ||
bomb "HOST_SH=\"${HOST_SH}\" failed functionality tests."
}
# initdefaults --
# Set defaults before parsing command line options.
#
initdefaults()
{
makeenv=
makewrapper=
makewrappermachine=
runcmd=
operations=
removedirs=
[ -d usr.bin/make ] || cd "$(dirname $0)"
[ -d usr.bin/make ] ||
bomb "usr.bin/make not found; build.sh must be run from the top \
level of source directory"
[ -f share/mk/bsd.own.mk ] ||
bomb "src/share/mk is missing; please re-fetch the source tree"
# Set various environment variables to known defaults,
# to minimize (cross-)build problems observed "in the field".
#
# LC_ALL=C must be set before we try to parse the output from
# any command. Other variables are set (or unset) here, before
# we parse command line arguments.
#
# These variables can be overridden via "-V var=value" if
# you know what you are doing.
#
unsetmakeenv INFODIR
unsetmakeenv LESSCHARSET
unsetmakeenv MAKEFLAGS
unsetmakeenv TERMINFO
setmakeenv LC_ALL C
# Find information about the build platform. This should be
# kept in sync with _HOST_OSNAME, _HOST_OSREL, and _HOST_ARCH
# variables in share/mk/bsd.sys.mk.
#
# Note that "uname -p" is not part of POSIX, but we want uname_p
# to be set to the host MACHINE_ARCH, if possible. On systems
# where "uname -p" fails, prints "unknown", or prints a string
# that does not look like an identifier, fall back to using the
# output from "uname -m" instead.
#
uname_s=$(uname -s 2>/dev/null)
uname_r=$(uname -r 2>/dev/null)
uname_m=$(uname -m 2>/dev/null)
uname_p=$(uname -p 2>/dev/null || echo "unknown")
case "${uname_p}" in
''|unknown|*[^-_A-Za-z0-9]*) uname_p="${uname_m}" ;;
esac
id_u=$(id -u 2>/dev/null || /usr/xpg4/bin/id -u 2>/dev/null)
# If $PWD is a valid name of the current directory, POSIX mandates
# that pwd return it by default which causes problems in the
# presence of symlinks. Unsetting PWD is simpler than changing
# every occurrence of pwd to use -P.
#
# XXX Except that doesn't work on Solaris. Or many Linuces.
#
unset PWD
TOP=$( (exec pwd -P 2>/dev/null) || (exec pwd 2>/dev/null) )
# The user can set HOST_SH in the environment, or we try to
# guess an appropriate value. Then we set several other
# variables from HOST_SH.
#
set_HOST_SH
setmakeenv HOST_SH "${HOST_SH}"
setmakeenv BSHELL "${HOST_SH}"
setmakeenv CONFIG_SHELL "${HOST_SH}"
# Set defaults.
#
toolprefix=nb
# Some systems have a small ARG_MAX. -X prevents make(1) from
# exporting variables in the environment redundantly.
#
case "${uname_s}" in
Darwin | FreeBSD | CYGWIN*)
MAKEFLAGS="-X ${MAKEFLAGS}"
;;
esac
# do_{operation}=true if given operation is requested.
#
do_expertmode=false
do_rebuildmake=false
do_removedirs=false
do_tools=false
do_cleandir=false
do_obj=false
do_build=false
do_distribution=false
do_release=false
do_kernel=false
do_releasekernel=false
do_kernels=false
do_modules=false
do_installmodules=false
do_install=false
do_sets=false
do_sourcesets=false
do_syspkgs=false
do_iso_image=false
do_iso_image_source=false
do_live_image=false
do_install_image=false
do_disk_image=false
do_params=false
do_rump=false
# done_{operation}=true if given operation has been done.
#
done_rebuildmake=false
# Create scratch directory
#
tmpdir="${TMPDIR-/tmp}/nbbuild$$"
mkdir "${tmpdir}" || bomb "Cannot mkdir: ${tmpdir}"
trap "cd /; rm -r -f \"${tmpdir}\"" 0
results="${tmpdir}/build.sh.results"
# Set source directories
#
setmakeenv NETBSDSRCDIR "${TOP}"
# Make sure KERNOBJDIR is an absolute path if defined
#
case "${KERNOBJDIR}" in
''|/*) ;;
*) KERNOBJDIR="${TOP}/${KERNOBJDIR}"
setmakeenv KERNOBJDIR "${KERNOBJDIR}"
;;
esac
# Find the version of NetBSD
#
DISTRIBVER="$(${HOST_SH} ${TOP}/sys/conf/osrelease.sh)"
# Set the BUILDSEED to NetBSD-"N"
#
setmakeenv BUILDSEED "NetBSD-$(${HOST_SH} ${TOP}/sys/conf/osrelease.sh -m)"
# Set MKARZERO to "yes"
#
setmakeenv MKARZERO "yes"
}
# valid_MACHINE_ARCH -- A multi-line string, listing all valid
# MACHINE/MACHINE_ARCH pairs.
#
# Each line contains a MACHINE and MACHINE_ARCH value, an optional ALIAS
# which may be used to refer to the MACHINE/MACHINE_ARCH pair, and an
# optional DEFAULT or NO_DEFAULT keyword.
#
# When a MACHINE corresponds to multiple possible values of
# MACHINE_ARCH, then this table should list all allowed combinations.
# If the MACHINE is associated with a default MACHINE_ARCH (to be
# used when the user specifies the MACHINE but fails to specify the
# MACHINE_ARCH), then one of the lines should have the "DEFAULT"
# keyword. If there is no default MACHINE_ARCH for a particular
# MACHINE, then there should be a line with the "NO_DEFAULT" keyword,
# and with a blank MACHINE_ARCH.
#
valid_MACHINE_ARCH='
MACHINE=acorn26 MACHINE_ARCH=arm
MACHINE=acorn32 MACHINE_ARCH=arm
MACHINE=algor MACHINE_ARCH=mips64el ALIAS=algor64
MACHINE=algor MACHINE_ARCH=mipsel DEFAULT
MACHINE=alpha MACHINE_ARCH=alpha
MACHINE=amd64 MACHINE_ARCH=x86_64
MACHINE=amiga MACHINE_ARCH=m68k
MACHINE=amigappc MACHINE_ARCH=powerpc
MACHINE=arc MACHINE_ARCH=mips64el ALIAS=arc64
MACHINE=arc MACHINE_ARCH=mipsel DEFAULT
MACHINE=atari MACHINE_ARCH=m68k
MACHINE=bebox MACHINE_ARCH=powerpc
MACHINE=cats MACHINE_ARCH=arm ALIAS=ocats
MACHINE=cats MACHINE_ARCH=earmv4 ALIAS=ecats DEFAULT
MACHINE=cesfic MACHINE_ARCH=m68k
MACHINE=cobalt MACHINE_ARCH=mips64el ALIAS=cobalt64
MACHINE=cobalt MACHINE_ARCH=mipsel DEFAULT
MACHINE=dreamcast MACHINE_ARCH=sh3el
MACHINE=emips MACHINE_ARCH=mipseb
MACHINE=epoc32 MACHINE_ARCH=arm
MACHINE=evbarm MACHINE_ARCH=arm ALIAS=evboarm-el
MACHINE=evbarm MACHINE_ARCH=armeb ALIAS=evboarm-eb
MACHINE=evbarm MACHINE_ARCH=earm ALIAS=evbearm-el DEFAULT
MACHINE=evbarm MACHINE_ARCH=earmeb ALIAS=evbearm-eb
MACHINE=evbarm MACHINE_ARCH=earmhf ALIAS=evbearmhf-el
MACHINE=evbarm MACHINE_ARCH=earmhfeb ALIAS=evbearmhf-eb
MACHINE=evbarm MACHINE_ARCH=earmv4 ALIAS=evbearmv4-el
MACHINE=evbarm MACHINE_ARCH=earmv4eb ALIAS=evbearmv4-eb
MACHINE=evbarm MACHINE_ARCH=earmv5 ALIAS=evbearmv5-el
MACHINE=evbarm MACHINE_ARCH=earmv5eb ALIAS=evbearmv5-eb
MACHINE=evbarm MACHINE_ARCH=earmv6 ALIAS=evbearmv6-el
MACHINE=evbarm MACHINE_ARCH=earmv6hf ALIAS=evbearmv6hf-el
MACHINE=evbarm MACHINE_ARCH=earmv6eb ALIAS=evbearmv6-eb
MACHINE=evbarm MACHINE_ARCH=earmv6hfeb ALIAS=evbearmv6hf-eb
MACHINE=evbarm MACHINE_ARCH=earmv7 ALIAS=evbearmv7-el
MACHINE=evbarm MACHINE_ARCH=earmv7eb ALIAS=evbearmv7-eb
MACHINE=evbarm MACHINE_ARCH=earmv7hf ALIAS=evbearmv7hf-el
MACHINE=evbarm MACHINE_ARCH=earmv7hfeb ALIAS=evbearmv7hf-eb
MACHINE=evbarm64 MACHINE_ARCH=aarch64 ALIAS=evbarm64-el DEFAULT
MACHINE=evbarm64 MACHINE_ARCH=aarch64eb ALIAS=evbarm64-eb
MACHINE=evbcf MACHINE_ARCH=coldfire
MACHINE=evbmips MACHINE_ARCH= NO_DEFAULT
MACHINE=evbmips MACHINE_ARCH=mips64eb ALIAS=evbmips64-eb
MACHINE=evbmips MACHINE_ARCH=mips64el ALIAS=evbmips64-el
MACHINE=evbmips MACHINE_ARCH=mipseb ALIAS=evbmips-eb
MACHINE=evbmips MACHINE_ARCH=mipsel ALIAS=evbmips-el
MACHINE=evbppc MACHINE_ARCH=powerpc DEFAULT
MACHINE=evbppc MACHINE_ARCH=powerpc64 ALIAS=evbppc64
MACHINE=evbsh3 MACHINE_ARCH= NO_DEFAULT
MACHINE=evbsh3 MACHINE_ARCH=sh3eb ALIAS=evbsh3-eb
MACHINE=evbsh3 MACHINE_ARCH=sh3el ALIAS=evbsh3-el
MACHINE=ews4800mips MACHINE_ARCH=mipseb
MACHINE=hp300 MACHINE_ARCH=m68k
MACHINE=hppa MACHINE_ARCH=hppa
MACHINE=hpcarm MACHINE_ARCH=arm ALIAS=hpcoarm
MACHINE=hpcarm MACHINE_ARCH=earmv4 ALIAS=hpcearm DEFAULT
MACHINE=hpcmips MACHINE_ARCH=mipsel
MACHINE=hpcsh MACHINE_ARCH=sh3el
MACHINE=i386 MACHINE_ARCH=i386
MACHINE=ia64 MACHINE_ARCH=ia64
MACHINE=ibmnws MACHINE_ARCH=powerpc
MACHINE=iyonix MACHINE_ARCH=arm ALIAS=oiyonix
MACHINE=iyonix MACHINE_ARCH=earm ALIAS=eiyonix DEFAULT
MACHINE=landisk MACHINE_ARCH=sh3el
MACHINE=luna68k MACHINE_ARCH=m68k
MACHINE=mac68k MACHINE_ARCH=m68k
MACHINE=macppc MACHINE_ARCH=powerpc DEFAULT
MACHINE=macppc MACHINE_ARCH=powerpc64 ALIAS=macppc64
MACHINE=mipsco MACHINE_ARCH=mipseb
MACHINE=mmeye MACHINE_ARCH=sh3eb
MACHINE=mvme68k MACHINE_ARCH=m68k
MACHINE=mvmeppc MACHINE_ARCH=powerpc
MACHINE=netwinder MACHINE_ARCH=arm ALIAS=onetwinder
MACHINE=netwinder MACHINE_ARCH=earmv4 ALIAS=enetwinder DEFAULT
MACHINE=news68k MACHINE_ARCH=m68k
MACHINE=newsmips MACHINE_ARCH=mipseb
MACHINE=next68k MACHINE_ARCH=m68k
MACHINE=ofppc MACHINE_ARCH=powerpc DEFAULT
MACHINE=ofppc MACHINE_ARCH=powerpc64 ALIAS=ofppc64
MACHINE=or1k MACHINE_ARCH=or1k
MACHINE=playstation2 MACHINE_ARCH=mipsel
MACHINE=pmax MACHINE_ARCH=mips64el ALIAS=pmax64
MACHINE=pmax MACHINE_ARCH=mipsel DEFAULT
MACHINE=prep MACHINE_ARCH=powerpc
MACHINE=riscv MACHINE_ARCH=riscv64 ALIAS=riscv64 DEFAULT
MACHINE=riscv MACHINE_ARCH=riscv32 ALIAS=riscv32
MACHINE=rs6000 MACHINE_ARCH=powerpc
MACHINE=sandpoint MACHINE_ARCH=powerpc
MACHINE=sbmips MACHINE_ARCH= NO_DEFAULT
MACHINE=sbmips MACHINE_ARCH=mips64eb ALIAS=sbmips64-eb
MACHINE=sbmips MACHINE_ARCH=mips64el ALIAS=sbmips64-el
MACHINE=sbmips MACHINE_ARCH=mipseb ALIAS=sbmips-eb
MACHINE=sbmips MACHINE_ARCH=mipsel ALIAS=sbmips-el
MACHINE=sgimips MACHINE_ARCH=mips64eb ALIAS=sgimips64
MACHINE=sgimips MACHINE_ARCH=mipseb DEFAULT
MACHINE=shark MACHINE_ARCH=arm ALIAS=oshark
MACHINE=shark MACHINE_ARCH=earmv4 ALIAS=eshark DEFAULT
MACHINE=sparc MACHINE_ARCH=sparc
MACHINE=sparc64 MACHINE_ARCH=sparc64
MACHINE=sun2 MACHINE_ARCH=m68000
MACHINE=sun3 MACHINE_ARCH=m68k
MACHINE=vax MACHINE_ARCH=vax
MACHINE=x68k MACHINE_ARCH=m68k
MACHINE=zaurus MACHINE_ARCH=arm ALIAS=ozaurus
MACHINE=zaurus MACHINE_ARCH=earm ALIAS=ezaurus DEFAULT
'
# getarch -- find the default MACHINE_ARCH for a MACHINE,
# or convert an alias to a MACHINE/MACHINE_ARCH pair.
#
# Saves the original value of MACHINE in makewrappermachine before
# alias processing.
#
# Sets MACHINE and MACHINE_ARCH if the input MACHINE value is
# recognised as an alias, or recognised as a machine that has a default
# MACHINE_ARCH (or that has only one possible MACHINE_ARCH).
#
# Leaves MACHINE and MACHINE_ARCH unchanged if MACHINE is recognised
# as being associated with multiple MACHINE_ARCH values with no default.
#
# Bombs if MACHINE is not recognised.
#
getarch()
{
local IFS
local found=""
local line
IFS="${nl}"
makewrappermachine="${MACHINE}"
for line in ${valid_MACHINE_ARCH}; do
line="${line%%#*}" # ignore comments
line="$( IFS=" ${tab}" ; echo $line )" # normalise white space
case "${line} " in
" ")
# skip blank lines or comment lines
continue
;;
*" ALIAS=${MACHINE} "*)
# Found a line with a matching ALIAS=<alias>.
found="$line"
break
;;
"MACHINE=${MACHINE} "*" NO_DEFAULT"*)
# Found an explicit "NO_DEFAULT" for this MACHINE.
found="$line"
break
;;
"MACHINE=${MACHINE} "*" DEFAULT"*)
# Found an explicit "DEFAULT" for this MACHINE.
found="$line"
break
;;
"MACHINE=${MACHINE} "*)
# Found a line for this MACHINE. If it's the
# first such line, then tentatively accept it.
# If it's not the first matching line, then
# remember that there was more than one match.
case "$found" in
'') found="$line" ;;
*) found="MULTIPLE_MATCHES" ;;
esac
;;
esac
done
case "$found" in
*NO_DEFAULT*|*MULTIPLE_MATCHES*)
# MACHINE is OK, but MACHINE_ARCH is still unknown
return
;;
"MACHINE="*" MACHINE_ARCH="*)
# Obey the MACHINE= and MACHINE_ARCH= parts of the line.
IFS=" "
for frag in ${found}; do
case "$frag" in
MACHINE=*|MACHINE_ARCH=*)
eval "$frag"
;;
esac
done
;;
*)
bomb "Unknown target MACHINE: ${MACHINE}"
;;
esac
}
# validatearch -- check that the MACHINE/MACHINE_ARCH pair is supported.
#
# Bombs if the pair is not supported.
#
validatearch()
{
local IFS
local line
local foundpair=false foundmachine=false foundarch=false
case "${MACHINE_ARCH}" in
"")
bomb "No MACHINE_ARCH provided"
;;
esac
IFS="${nl}"
for line in ${valid_MACHINE_ARCH}; do
line="${line%%#*}" # ignore comments
line="$( IFS=" ${tab}" ; echo $line )" # normalise white space
case "${line} " in
" ")
# skip blank lines or comment lines
continue
;;
"MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH} "*)
foundpair=true
;;
"MACHINE=${MACHINE} "*)
foundmachine=true
;;
*"MACHINE_ARCH=${MACHINE_ARCH} "*)
foundarch=true
;;
esac
done
case "${foundpair}:${foundmachine}:${foundarch}" in
true:*)
: OK
;;
*:false:*)
bomb "Unknown target MACHINE: ${MACHINE}"
;;
*:*:false)
bomb "Unknown target MACHINE_ARCH: ${MACHINE_ARCH}"
;;
*)
bomb "MACHINE_ARCH '${MACHINE_ARCH}' does not support MACHINE '${MACHINE}'"
;;
esac
}
# listarch -- list valid MACHINE/MACHINE_ARCH/ALIAS values,
# optionally restricted to those where the MACHINE and/or MACHINE_ARCH
# match specifed glob patterns.
#
listarch()
{
local machglob="$1" archglob="$2"
local IFS
local wildcard="*"
local line xline frag
local line_matches_machine line_matches_arch
local found=false
# Empty machglob or archglob should match anything
: "${machglob:=${wildcard}}"
: "${archglob:=${wildcard}}"
IFS="${nl}"
for line in ${valid_MACHINE_ARCH}; do
line="${line%%#*}" # ignore comments
xline="$( IFS=" ${tab}" ; echo $line )" # normalise white space
[ -z "${xline}" ] && continue # skip blank or comment lines
line_matches_machine=false
line_matches_arch=false
IFS=" "
for frag in ${xline}; do
case "${frag}" in
MACHINE=${machglob})
line_matches_machine=true ;;
ALIAS=${machglob})
line_matches_machine=true ;;
MACHINE_ARCH=${archglob})
line_matches_arch=true ;;
esac
done
if $line_matches_machine && $line_matches_arch; then
found=true
echo "$line"
fi
done
if ! $found; then
echo >&2 "No match for" \
"MACHINE=${machglob} MACHINE_ARCH=${archglob}"
return 1
fi
return 0
}
# nobomb_getmakevar --
# Given the name of a make variable in $1, print make's idea of the
# value of that variable, or return 1 if there's an error.
#
nobomb_getmakevar()
{
[ -x "${make}" ] || return 1
"${make}" -m ${TOP}/share/mk -s -B -f- _x_ <<EOF || return 1
_x_:
echo \${$1}
.include <bsd.prog.mk>
.include <bsd.kernobj.mk>
EOF
}
# bomb_getmakevar --
# Given the name of a make variable in $1, print make's idea of the
# value of that variable, or bomb if there's an error.
#
bomb_getmakevar()
{
[ -x "${make}" ] || bomb "bomb_getmakevar $1: ${make} is not executable"
nobomb_getmakevar "$1" || bomb "bomb_getmakevar $1: ${make} failed"
}
# getmakevar --
# Given the name of a make variable in $1, print make's idea of the
# value of that variable, or print a literal '$' followed by the
# variable name if ${make} is not executable. This is intended for use in
# messages that need to be readable even if $make hasn't been built,
# such as when build.sh is run with the "-n" option.
#
getmakevar()
{
if [ -x "${make}" ]; then
bomb_getmakevar "$1"
else
echo "\$$1"
fi
}
setmakeenv()
{
eval "$1='$2'; export $1"
makeenv="${makeenv} $1"
}
unsetmakeenv()
{
eval "unset $1"
makeenv="${makeenv} $1"
}
# Given a variable name in $1, modify the variable in place as follows:
# For each space-separated word in the variable, call resolvepath.
resolvepaths()
{
local var="$1"
local val
eval val=\"\${${var}}\"
local newval=''
local word
for word in ${val}; do
resolvepath word
newval="${newval}${newval:+ }${word}"
done
eval ${var}=\"\${newval}\"
}
# Given a variable name in $1, modify the variable in place as follows:
# Convert possibly-relative path to absolute path by prepending
# ${TOP} if necessary. Also delete trailing "/", if any.
resolvepath()
{
local var="$1"
local val
eval val=\"\${${var}}\"
case "${val}" in
/)
;;
/*)
val="${val%/}"
;;
*)
val="${TOP}/${val%/}"
;;
esac
eval ${var}=\"\${val}\"
}
usage()
{