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#!/bin/sh
QMKSPEC=$1
VERBOSE=$2
SRCDIR=$3
OUTDIR=$4
# debuggery
[ "$VERBOSE" = "yes" ] && echo "Determining floating point word-order... ($*)"
# build and run a test program
test -d "$OUTDIR/config.tests/unix/doubleformat" || mkdir -p "$OUTDIR/config.tests/unix/doubleformat"
"$OUTDIR/bin/qmake" -nocache -spec "$QMKSPEC" "$SRCDIR/config.tests/unix/doubleformat/doubleformattest.pro" -o "$OUTDIR/config.tests/unix/doubleformat/Makefile" >/dev/null 2>&1
cd "$OUTDIR/config.tests/unix/doubleformat"
DOUBLEFORMAT="UNKNOWN"
[ "$VERBOSE" = "yes" ] && $MAKE || $MAKE >/dev/null 2>&1
if [ -f ./doubleformattest ]; then
: # nop
else
[ "$VERBOSE" = "yes" ] && echo "Unknown floating point format!"
exit 2
fi
# LE: strings | grep 0123ABCD0123ABCD
# BE: strings | grep DCBA3210DCBA3210
#
# LE arm-swapped-dword-order: strings | grep ABCD0123ABCD0123
# BE arm-swapped-dword-order: strings | grep 3210DCBA3210DCBA (untested)
if strings ./doubleformattest | grep "0123ABCD0123ABCD" >/dev/null 2>&1; then
[ "$VERBOSE" = "yes" ] && echo " Normal little endian format"
DOUBLEFORMAT="LITTLE"
elif strings ./doubleformattest | grep "ABCD0123ABCD0123" >/dev/null 2>&1; then
[ "$VERBOSE" = "yes" ] && echo " Swapped little endian format"
DOUBLEFORMAT="LITTLESWAPPED"
elif strings ./doubleformattest | grep "DCBA3210DCBA3210" >/dev/null 2>&1; then
[ "$VERBOSE" = "yes" ] && echo " Normal big endian format"
DOUBLEFORMAT="BIG"
elif strings ./doubleformattest | grep "3210DCBA3210DCBA" >/dev/null 2>&1; then
[ "$VERBOSE" = "yes" ] && echo " Swapped big endian format"
DOUBLEFORMAT="BIGSWAPPED"
fi
# done
if [ "$DOUBLEFORMAT" = "LITTLE" ]; then
[ "$VERBOSE" = "yes" ] && echo "Using little endian."
exit 10
elif [ "$DOUBLEFORMAT" = "BIG" ]; then
[ "$VERBOSE" = "yes" ] && echo "Using big endian."
exit 11
elif [ "$DOUBLEFORMAT" = "LITTLESWAPPED" ]; then
[ "$VERBOSE" = "yes" ] && echo "Using swapped little endian."
exit 12
elif [ "$DOUBLEFORMAT" = "BIGSWAPPED" ]; then
[ "$VERBOSE" = "yes" ] && echo "Using swapped big endian."
exit 13
else
[ "$VERBOSE" = "yes" ] && echo "Unknown floating point format!"
exit 99
fi
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