100 lines
2.3 KiB
Plaintext
100 lines
2.3 KiB
Plaintext
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#!/bin/sh
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# $NetBSD: mknative,v 1.1 2002/02/11 21:24:10 tv Exp $
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#
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# Shell script for generating all the constants needed for a native
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# platform build of src/gnu/dist/toolchain.
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#
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bomb () {
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echo >&1 "ABORT: $*"
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exit 1
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}
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# usage: getsysvar VARNAME
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getsysvar () {
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$MAKE -f - _x_ <<EOF || bomb "getvars $1 failed"
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.include <bsd.hostprog.mk>
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_x_:
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@echo \${$1}
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EOF
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}
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# usage: getvars MAKEFILE VARNAME [VARNAME...]
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getvars () {
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_mf="$1"; shift
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$MAKE -f - _x_ <<EOF || bomb "getvars $_mf $* failed"
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_x_:
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.for var in $*
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@echo G_\${var}=\${\${var}:Q} | sed 's,$_VPATH,\$\${DIST},g'
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.endfor
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.include "$_TMPDIR/$_mf"
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EOF
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}
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# usage: write_c FILENAME
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write_c () {
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echo '/* This file is automatically generated. DO NOT EDIT! */' >$_TOP/$1.tmp || \
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bomb "cannot create $1"
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grep '$''NetBSD' $0 | sed 's,[#$],,g;s,.*,/* Generated from: & */,' >>$_TOP/$1.tmp
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echo '' >>$_TOP/$1.tmp
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writefile $1
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}
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# usage: write_mk FILENAME
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write_mk () {
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echo '# This file is automatically generated. DO NOT EDIT!' >$_TOP/$1.tmp || \
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bomb "cannot create $1"
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grep '$''NetBSD' $0 | sed 's,[#$],,g;s,.*,# Generated from: &,' >>$_TOP/$1.tmp
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echo '#' >>$_TOP/$1.tmp
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writefile $1
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}
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writefile () {
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sed 's,netbsd\(elf\)*1[0-9\.]*\(_\)*[A-Z]*,netbsd\1,' >>$_TOP/$1.tmp
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# Compare new file, sans "generated from" comments and RCS Id, to
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# old file. If they match, don't change anything.
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rm -f $_TMPDIR/.1 $_TMPDIR/.2
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grep -v 'Generated from:' $_TOP/$1 >$_TMPDIR/.1
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grep -v 'Generated from:' $_TOP/$1.tmp >$_TMPDIR/.2
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# will not overwrite a file that has the same content
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if cmp $_TMPDIR/.1 $_TMPDIR/.2 >/dev/null 2>&1; then
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echo >&2 "$1 is unchanged"
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rm -f $_TOP/$1.tmp
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else
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echo >&2 "$1 created"
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mv -f $_TOP/$1.tmp $_TOP/$1
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fi
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}
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##### gnu/lib/libgcc #####
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get_libgcc () {
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# DPBIT, FPBIT only used on mn10[23]00, we don't need them.
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getvars gcc/Makefile \
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CXX_EXTRA_HEADERS CXX_LIB2FUNCS CXX_LIB2SRCS \
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INCLUDES LIB2ADD LIB2FUNCS LIB2FUNCS_EH \
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LIBGCC2_CFLAGS MAYBE_USE_COLLECT2 \
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| write_mk gnu/lib/libgcc/$MACHINE_ARCH.mk
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for f in tconfig tm; do
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write_c gnu/usr.bin/gcc/arch/$MACHINE_ARCH/$f.h <$_TMPDIR/gcc/$f.h
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done
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}
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##### main #####
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_TMPDIR=`pwd`/build
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_VPATH=`grep VPATH ${_TMPDIR}/Makefile | sed 's,^.*= ,,'`
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case $1 in
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libgcc) # .mk and .h files for libgcc bootstrap (from host build)
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_TOP=$2
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get_libgcc
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exit 0
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;;
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*) echo invalid arguments; exit 1;;
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esac
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