gcc/libgo/mkruntimeinc.sh
Ian Lance Taylor 4a14082645 compile, runtime: permit anonymous and empty fields in C header
Permit putting structs with anonymous and empty fields in the C header
    file runtime.inc that is used to build the C runtime code.  This is
    required for upcoming 1.13 support, as the m struct has picked up an
    anonymous field.
    
    Doing this lets the C header contain all the type descriptor structs,
    so start using those in the C code.  This cuts the number of copies of
    type descriptor definitions from 3 to 2.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/192343

From-SVN: r275227
2019-08-30 21:49:49 +00:00

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#!/bin/sh
# Copyright 2018 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Create tmp-runtime.inc from runtime.inc.raw.
IN=runtime.inc.raw
OUT=tmp-runtime.inc
rm -f runtime.inc.tmp2 runtime.inc.tmp3
# _Complex_lock and _Reader_lock are Go translations of some AIX system
# types and should not be exported back to C
# semt is a Go translation of the C type sem_t; it fails to convert on
# some systems and need not be exported back to C.
# sigset conflicts with system type sigset on AIX, so we need to rename it.
# boundsError has a field name that is a C keyword, and we don't need it.
grep -v "#define _" ${IN} | grep -v "#define [cm][01234] " | grep -v "#define empty " | grep -v "#define \\$" > runtime.inc.tmp2
for pattern in '_[GP][a-z]' _Max _Lock _Sig _Trace _MHeap _Num
do
grep "#define $pattern" ${IN} >> runtime.inc.tmp2
done
TYPES="_Complex_lock _Reader_lock semt boundsError"
for TYPE in $TYPES
do
sed -e '/struct '${TYPE}' {/,/^}/s/^.*$//' runtime.inc.tmp2 > runtime.inc.tmp3;
mv runtime.inc.tmp3 runtime.inc.tmp2
done
sed -e 's/sigset/sigset_go/' runtime.inc.tmp2 > runtime.inc.tmp3
mv runtime.inc.tmp3 runtime.inc.tmp2
# Make all the fields of type structs const.
sed -e '/struct .*type {/,/^}/ s/ \(.*;\)/ const \1/' < runtime.inc.tmp2 > runtime.inc.tmp3
mv -f runtime.inc.tmp3 ${OUT}
rm -f runtime.inc.tmp2 runtime.inc.tmp3
exit 0