1 #!/bin/sh

     2 

     3 QMKSPEC=$1

     4 VERBOSE=$2

     5 SRCDIR=$3

     6 OUTDIR=$4

     7 

     8 # debuggery

     9 [ "$VERBOSE" = "yes" ] && echo "Determining floating point  word-order... ($*)"

    10 

    11 # build and run a test program

    12 test -d "$OUTDIR/config.tests/unix/doubleformat" || mkdir -p "$OUTDIR/config.tests/unix/doubleformat"

    13 "$OUTDIR/bin/qmake" -nocache -spec "$QMKSPEC" "$SRCDIR/config.tests/unix/doubleformat/doubleformattest.pro" -o "$OUTDIR/config.tests/unix/doubleformat/Makefile" >/dev/null 2>&1

    14 cd "$OUTDIR/config.tests/unix/doubleformat"

    15 

    16 DOUBLEFORMAT="UNKNOWN"

    17 [ "$VERBOSE" = "yes" ] && $MAKE || $MAKE >/dev/null 2>&1

    18 

    19 if [ -f ./doubleformattest ]; then

    20     : # nop

    21 else

    22     [ "$VERBOSE" = "yes" ] && echo "Unknown floating point format!"

    23     exit 2

    24 fi

    25 

    26 # LE: strings | grep 0123ABCD0123ABCD

    27 # BE: strings | grep DCBA3210DCBA3210

    28 # 

    29 # LE arm-swapped-dword-order: strings | grep ABCD0123ABCD0123

    30 # BE arm-swapped-dword-order: strings | grep 3210DCBA3210DCBA (untested)

    31 

    32 

    33 if strings ./doubleformattest | grep "0123ABCD0123ABCD" >/dev/null 2>&1; then

    34     [ "$VERBOSE" = "yes" ] && echo "     Normal little endian format"

    35     DOUBLEFORMAT="LITTLE"

    36 elif strings ./doubleformattest | grep "ABCD0123ABCD0123" >/dev/null 2>&1; then

    37     [ "$VERBOSE" = "yes" ] && echo "     Swapped little endian format"

    38     DOUBLEFORMAT="LITTLESWAPPED"

    39 elif strings ./doubleformattest | grep "DCBA3210DCBA3210" >/dev/null 2>&1; then

    40     [ "$VERBOSE" = "yes" ] && echo "     Normal big endian format"

    41     DOUBLEFORMAT="BIG"

    42 elif strings ./doubleformattest | grep "3210DCBA3210DCBA" >/dev/null 2>&1; then

    43     [ "$VERBOSE" = "yes" ] && echo "     Swapped big endian format"

    44     DOUBLEFORMAT="BIGSWAPPED"

    45 fi

    46 

    47 # done

    48 if [ "$DOUBLEFORMAT" = "LITTLE" ]; then

    49     [ "$VERBOSE" = "yes" ] && echo "Using little endian."

    50     exit 10

    51 elif [ "$DOUBLEFORMAT" = "BIG" ]; then

    52     [ "$VERBOSE" = "yes" ] && echo "Using big endian."

    53     exit 11

    54 elif [ "$DOUBLEFORMAT" = "LITTLESWAPPED" ]; then

    55     [ "$VERBOSE" = "yes" ] && echo "Using swapped little endian."

    56     exit 12

    57 elif [ "$DOUBLEFORMAT" = "BIGSWAPPED" ]; then

    58     [ "$VERBOSE" = "yes" ] && echo "Using swapped big endian."

    59     exit 13

    60 else

    61     [ "$VERBOSE" = "yes" ] && echo "Unknown floating point format!"

    62     exit 99

    63 fi