diff options
Diffstat (limited to 'gen/mkh.sh')
| -rwxr-xr-x | gen/mkh.sh | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/gen/mkh.sh b/gen/mkh.sh new file mode 100755 index 00000000..c4c4d6d4 --- /dev/null +++ b/gen/mkh.sh @@ -0,0 +1,173 @@ +#!/bin/sh + +TOPDIR=$(dirname $0) +if [ -z "${INCDIR}" ]; then + INCDIR="${TOPDIR}/include" +fi +. "${TOPDIR}/mk.sh" + +export LC_ALL=POSIX +export LANG=POSIX +HEADER=$1 +HEADERNAME=$(echo $HEADER | sed -e "s#^${INCDIR}/*##") +GUARD=__$(echo $HEADERNAME | tr a-z/. A-Z__)__ +mkdir -p $(dirname $HEADER) +exec > $HEADER + +if [ $(basename $HEADER) != assert.h ]; then + printf '#ifndef %s\n#define %s\n\n' ${GUARD} ${GUARD} +fi + +printf "/*\nUNG's Not GNU\n\n%s\n*/\n\n" "$(cat LICENSE)" + +rm -rf $HEADER.* +for i in $(cat "${TOPDIR}/.deps/h/${HEADERNAME}.deps" | sort -u); do + # TODO: refs + type=$(classify_source $i) + source=$i + if [ $type = "REFERENCE" ] && ! grep -Fq 'REFERENCE(<' $source; then + source=src/$(grep REFERENCE $i | m4 -DREFERENCE='$1') + type=$(classify_source $source) + fi + version=v$(grep -F -e 'STDC(' -e 'POSIX(' -e 'XOPEN(' $i | sed -e 's/STDC/C/' | sort | tr , - | tr -d '() \n') + mkdir -p $HEADER.$type + echo $source >> $HEADER.$type/$version + + if ! [ -f $(dirname $0)/.deps/ftm/$version ]; then + mkdir -p $(dirname $0)/.deps/ftm + version_guard $source > $(dirname $0)/.deps/ftm/$version + fi + + printf '%s <%s> (%s)\n' "$i" "$HEADER" "$version" >&2 +done + +### +### TODO: prevent _XOPEN_SOURCE expanding to empty string +### +if grep -Fq -e '_XOPEN_SOURCE <' -e '< _XOPEN_SOURCE' $(cat $(HEADER.*/*); then +cat <<-EOF + #if defined _XOPEN_SOURCE && _XOPEN_SOURCE - 1 < 0 + # undef _XOPEN_SOURCE + # define _XOPEN_SOURCE 400 + #endif +EOF +fi + +if grep -Fq 'POSIX(' $(cat $HEADER.*/*); then +cat <<-EOF + #if defined _XOPEN_SOURCE && !defined _POSIX_C_SOURCE + # if (_XOPEN_SOURCE >= 700) + # define _POSIX_C_SOURCE 200809L + # elif (_XOPEN_SOURCE >= 600) + # define _POSIX_C_SOURCE 200112L + # elif (_XOPEN_SOURCE >= 500) + # define _POSIX_C_SOURCE 199506L + # else + # define _POSIX_C_SOURCE 2 + # endif + #endif + + #if defined _POSIX_C_SOURCE && !defined _POSIX_SOURCE + # define _POSIX_SOURCE + #endif + +EOF +fi + +if grep -Fq -e 'POSIX(' -e 'XOPEN(' $(cat $HEADER.*/*); then +cat <<-EOF + #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 19901L + # if (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 200112L) + # error POSIX.1-2001 and later require a C99 compiler + # elif(defined _XOPEN_SOURCE && _XOPEN_SOURCE >= 600) + # error XOPEN Issue 6 and later require a C99 compiler + # endif + #endif +EOF +fi + +for type in REFERENCE MACRO TYPE TYPE_LONG RECORD FNTYPE EXTERN; do + if [ -d $HEADER.$type ]; then + for v in $HEADER.$type/*; do + version=$(cat $(dirname $0)/.deps/ftm/$(basename $v | sed -e 's/^.*\.//')) + if [ -n "$version" ]; then + printf '%s\n' "$version" + fi + + for i in $(sort -u $v); do + printf '/* %s */\n' $i + get_declaration $i + done + + if [ -n "$version" ]; then + printf '#endif\n' + fi + + printf '\n' + done + rm -rf $HEADER.$type + fi +done + +if [ -d $HEADER.TGFN ]; then + for v in $HEADER.TGFN/*; do + version=$(cat $(dirname $0)/.deps/ftm/$(basename $v | sed -e 's/^.*\.//')) + if [ -n "$version" ]; then + printf '%s\n' "$version" + fi + + for i in $(sort -u $v); do + printf '/* %s */\n' $i + get_declaration $i TGFN + done + + if [ -n "$version" ]; then + printf '#endif\n' + fi + + printf '\n' + done + rm -rf $HEADER.TGFN +fi + +if [ -d $HEADER.FUNCTION ]; then + if grep -q restrict $(cat $HEADER.FUNCTION/*); then + if grep -Fq -e 'STDC(1)' -e 'STDC(1,' -e 'STDC(199409' $(grep -l restrict $(cat $HEADER.FUNCTION/*)) || ! grep -Fq 'STDC(' $(grep -l restrict $(cat $HEADER.FUNCTION/*)); then + printf '#if (!defined __STDC_VERSION__) || (__STDC_VERSION__ < 199901L)\n' + printf '#define restrict\n' + printf '#endif\n\n' + fi + fi + + ### TODO: only if header works with C<11 + if grep -q _Noreturn $(cat $HEADER.FUNCTION/*); then + printf '#if (!defined __STDC_VERSION__) || (__STDC_VERSION__ < 200112L)\n' + printf '#define _Noreturn\n' + printf '#endif\n\n' + fi + + for v in $HEADER.FUNCTION/*; do + version=$(cat $(dirname $0)/.deps/ftm/$(basename $v | sed -e 's/^.*\.//')) + if [ -n "$version" ]; then + printf '%s\n' "$version" + fi + + for i in $(sort -u $v); do + printf '/* %s */\n' $i + get_declaration $i FUNCTION | sed -e 's/\([a-zA-Z_][a-zA-Z_0-9]*\)\([,)]\)/__\1\2/g;s/(__\([a-zA-Z_][a-zA-Z_0-9]*\))/(\1)/g' + done + + if [ -n "$version" ]; then + printf '#endif\n' + fi + + printf '\n' + done + rm -rf $HEADER.FUNCTION +fi + +rm -rf $HEADER.REFERENCE + +if [ $(basename $HEADER) != assert.h ]; then + printf '\n#endif\n' +fi |