#!/bin/sh

base=`pwd`/../Mesa-7.4.2/include/GL

files="gl.h glu.h"

if [ "$1" != "" ] ; then
    os=$1
fi

if [ "$os" == "" ] ; then
    os=`uname`
fi

for f in $files ; do cat $base/$f ; done |
    grep ^GLAPI.*ENTRY |
    sed 's/GLAPI\ .*\ .*ENTRY\ \([^\ ]*\)\ *(.*/\1/' |
    grep -v MESA\$ |
    grep -v ATI\$ |
    grep -v EXT\$ |
    sort -u > tmp-symbol-list.txt

echo ".text"

if [ "$os" == "Darwin" ] ; then
cat tmp-symbol-list.txt | while read symbol ; do
    echo ".globl _m$symbol"
    echo "_m$symbol:"
    echo "jmp L_$symbol\$stub"
done

echo ".section __IMPORT,__jump_table,symbol_stubs,self_modifying_code+pure_instructions,5"

cat tmp-symbol-list.txt | while read symbol ; do
    echo "L_$symbol\$stub:"
    echo ".indirect_symbol _$symbol"
    echo "hlt; hlt; hlt; hlt; hlt;"
done

echo ".subsections_via_symbols"

elif [ "$os" == "Linux" ] ; then

cat tmp-symbol-list.txt | while read symbol ; do
    echo ".globl m$symbol"
    echo ".type m$symbol, @function"
    echo "m$symbol:"
    echo "jmp $symbol"
    echo ".size m$symbol, .-m$symbol"
done

elif [ "$os" == "mingw32" ] ; then

cat tmp-symbol-list.txt | while read symbol ; do
    echo ".globl _m$symbol"
    echo ".def _m$symbol; .scl 2; .type 32; .endef;"
    echo "_m$symbol:"
    echo "jmp _$symbol"
done

cat tmp-symbol-list.txt | while read symbol ; do
    echo ".def _$symbol; .scl 2; .type 32; .endef;"
done

fi

rm tmp-symbol-list.txt