| #!/bin/sh |
| ## This file is part of the libpayload project. |
| ## |
| ## Copyright (C) 2008 Advanced Micro Devices, Inc. |
| ## |
| ## Redistribution and use in source and binary forms, with or without |
| ## modification, are permitted provided that the following conditions |
| ## are met: |
| ## 1. Redistributions of source code must retain the above copyright |
| ## notice, this list of conditions and the following disclaimer. |
| ## 2. Redistributions in binary form must reproduce the above copyright |
| ## notice, this list of conditions and the following disclaimer in the |
| ## documentation and/or other materials provided with the distribution. |
| ## 3. The name of the author may not be used to endorse or promote products |
| ## derived from this software without specific prior written permission. |
| ## |
| ## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| ## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| ## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| ## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| ## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| ## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| ## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| ## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| ## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| ## SUCH DAMAGE. |
| |
| # GCC wrapper for libpayload |
| # let's not recurse. |
| # This is a hack, I know, but it makes sure that really simple user errors |
| # don't fork-bomb your machine. |
| echo "CC = $CC" |
| |
| b=`basename $CC` |
| if [ "$b" = "lpgcc" ]; then |
| CC="" |
| fi |
| |
| |
| |
| if [ "$CC" != "" ]; then |
| DEFAULT_CC=$CC |
| else |
| DEFAULT_CC=gcc |
| fi |
| |
| BASE=`dirname $0` |
| |
| # This will set the _LIBDIR and _INCDIR variables used below |
| . $BASE/lp.functions |
| |
| # include libpayload config |
| . $BASE/../libpayload.config |
| |
| _LDSCRIPT="-Wl,-T,$_LIBDIR/libpayload.ldscript" |
| |
| trygccoption() { |
| $DEFAULT_CC $1 -S -xc /dev/null -o .$$.tmp &> /dev/null |
| RET=$? |
| rm -f .$$.tmp |
| return $RET |
| } |
| |
| DEBUGME=0 |
| DOLINK=1 |
| |
| # This variable will contain the command line that the user wants to |
| # pass to gas |
| |
| CMDLINE= |
| |
| # Process various flags that would change our behavior |
| |
| while [ $# -gt 0 ]; do |
| case $1 in |
| -m32|-fno-stack-protector) |
| shift |
| continue |
| ;; |
| -m64) |
| error "Invalid option --64 - only 32 bit architectures are supported" |
| ;; |
| -c) |
| DOLINK=0 |
| ;; |
| -debug-wrapper) |
| DEBUGME=1 |
| shift |
| continue |
| ;; |
| -Wl,-T,*) |
| _LDSCRIPT="$1" |
| shift |
| continue |
| ;; |
| *) |
| ;; |
| esac |
| |
| CMDLINE="$CMDLINE $1" |
| shift |
| done |
| |
| if [ "$CONFIG_TARGET_I386" = "y" ]; then |
| _ARCHINCDIR=$_INCDIR/i386 |
| _ARCHLIBDIR=$_LIBDIR/i386 |
| fi |
| |
| if [ "$CONFIG_TARGET_POWERPC" = "y" ]; then |
| _ARCHINCDIR=$_INCDIR/powerpc |
| _ARCHLIBDIR=$_LIBDIR/powerpc |
| fi |
| |
| _CFLAGS="-m32 -nostdinc -nostdlib -I$_INCDIR -I$_ARCHINCDIR -D__LIBPAYLOAD__=1" |
| |
| # Check for the -fno-stack-protector silliness |
| |
| trygccoption -fno-stack-protector |
| [ $? -eq 0 ] && _CFLAGS="$_CFLAGS -fno-stack-protector" |
| |
| _CFLAGS="$_CFLAGS -I`$DEFAULT_CC -m32 -print-search-dirs | head -n 1 | cut -d' ' -f2`include" |
| |
| _LDFLAGS="$_LDSCRIPT -static" |
| |
| if [ $DOLINK -eq 0 ]; then |
| if [ $DEBUGME -eq 1 ]; then |
| echo "$DEFAULT_CC $_CFLAGS $CMDLINE" |
| fi |
| |
| $DEFAULT_CC $_CFLAGS $CMDLINE |
| else |
| _LIBGCC=`$DEFAULT_CC -m32 -print-libgcc-file-name` |
| if [ $DEBUGME -eq 1 ]; then |
| echo "$DEFAULT_CC $_CFLAGS $_LDFLAGS $_ARCHLIBDIR/head.o $CMDLINE $_LIBDIR/libpayload.a $_LIBGCC" |
| fi |
| |
| # Note: $_ARCHLIBDIR/head.o must be the first object being linked, because it |
| # contains a Multiboot header. The Multiboot standard requires this |
| # header to be placed below 0x2000 in the resulting image. See: |
| # http://www.gnu.org/software/grub/manual/multiboot/html_node/OS-image-format.html |
| |
| $DEFAULT_CC $_CFLAGS $_LDFLAGS $_ARCHLIBDIR/head.o $CMDLINE $_LIBDIR/libpayload.a $_LIBGCC |
| fi |