mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
110 lines
3.1 KiB
Bash
110 lines
3.1 KiB
Bash
#! /bin/sh
|
|
|
|
# Generate gcc's config.h, which is not your normal autoconf-generated
|
|
# config.h (that's auto-(host|build).h). $1 is the file to generate.
|
|
# HEADERS, DEFINES, and possibly TARGET_CPU_DEFAULT are expected to be
|
|
# set in the environment.
|
|
|
|
if [ -z "$1" ]; then
|
|
echo "Usage: HEADERS='list' DEFINES='list' mkconfig.sh FILE" >&2
|
|
exit 1
|
|
fi
|
|
|
|
output=$1
|
|
rm -f $output.T
|
|
|
|
# We used to exec > $output.T but apparently this has bugs.
|
|
# Use a redirected subshell instead.
|
|
(
|
|
|
|
# Define TARGET_CPU_DEFAULT if the system wants one.
|
|
# This substitutes for lots of *.h files.
|
|
if [ "$TARGET_CPU_DEFAULT" != "" ]; then
|
|
echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)"
|
|
fi
|
|
|
|
# The first entry in HEADERS may be auto-host.h or auto-build.h;
|
|
# it wants to be included even when not -DIN_GCC.
|
|
if [ -n "$HEADERS" ]; then
|
|
set $HEADERS; first=$1
|
|
case $first in auto-* )
|
|
echo "#include \"$first\""
|
|
shift
|
|
HEADERS=$*
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
# Provide three core typedefs used by everything, if we are compiling
|
|
# GCC. These used to be found in rtl.h and tree.h, but this is no
|
|
# longer practical. Providing these in config.h/tconfig.h/hconfig.h
|
|
# rather than system.h allows the typedefs to be used anywhere in GCC.
|
|
case $output in
|
|
*config.h | *hconfig.h | *tconfig.h)
|
|
echo "#ifdef IN_GCC"
|
|
echo "/* Provide three core typedefs used by everything, if we are compiling"
|
|
echo " GCC. These used to be found in rtl.h and tree.h, but this is no"
|
|
echo " longer practical. Providing these here rather that system.h allows"
|
|
echo " the typedefs to be used everywhere within GCC. */"
|
|
echo "struct rtx_def;"
|
|
echo "typedef struct rtx_def *rtx;"
|
|
echo "struct rtvec_def;"
|
|
echo "typedef struct rtvec_def *rtvec;"
|
|
echo "union tree_node;"
|
|
echo "typedef union tree_node *tree;"
|
|
echo "#endif"
|
|
;;
|
|
esac
|
|
|
|
if [ -n "$HEADERS" ]; then
|
|
echo '#ifdef IN_GCC'
|
|
for file in $HEADERS; do
|
|
echo "# include \"$file\""
|
|
done
|
|
echo '#endif'
|
|
fi
|
|
|
|
for def in $DEFINES; do
|
|
echo "#ifndef $def" | sed 's/=.*//'
|
|
echo "# define $def" | sed 's/=/ /'
|
|
echo "#endif"
|
|
done
|
|
|
|
# If this is tm_p.h, include tm-preds.h unconditionally.
|
|
# If this is tconfig.h or hconfig.h, include no more files.
|
|
# Otherwise, include insn-constants.h and insn-flags.h,
|
|
# but only if GENERATOR_FILE is not defined.
|
|
case $output in
|
|
*tm_p.h)
|
|
echo "#include \"tm-preds.h\""
|
|
;;
|
|
*tconfig.h | *hconfig.h)
|
|
;;
|
|
*)
|
|
echo "#ifndef GENERATOR_FILE"
|
|
echo "# include \"insn-constants.h\""
|
|
echo "# include \"insn-flags.h\""
|
|
echo "#endif"
|
|
;;
|
|
esac
|
|
|
|
# Prevent obstack.c from thinking it can do i18n of its error message
|
|
# when it's being linked against a build-side program.
|
|
echo '#ifdef GENERATOR_FILE'
|
|
echo '# undef ENABLE_NLS'
|
|
echo '#endif'
|
|
|
|
) > $output.T
|
|
|
|
# Avoid changing the actual file if possible.
|
|
if [ -f $output ] && cmp $output.T $output >/dev/null 2>&1; then
|
|
echo $output is unchanged >&2
|
|
rm -f $output.T
|
|
else
|
|
mv -f $output.T $output
|
|
fi
|
|
|
|
# Touch a stamp file for Make's benefit.
|
|
rm -f cs-$output
|
|
echo timestamp > cs-$output
|