2 ## This file is part of the libpayload project.
4 ## Copyright (C) 2008 Advanced Micro Devices, Inc.
6 ## Redistribution and use in source and binary forms, with or without
7 ## modification, are permitted provided that the following conditions
9 ## 1. Redistributions of source code must retain the above copyright
10 ## notice, this list of conditions and the following disclaimer.
11 ## 2. Redistributions in binary form must reproduce the above copyright
12 ## notice, this list of conditions and the following disclaimer in the
13 ## documentation and/or other materials provided with the distribution.
14 ## 3. The name of the author may not be used to endorse or promote products
15 ## derived from this software without specific prior written permission.
17 ## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 ## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 ## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 ## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 ## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 ## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 ## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 ## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 ## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 ## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 # GCC wrapper for libpayload
31 # This is a hack, I know, but it makes sure that really simple user errors
32 # don't fork-bomb your machine.
34 if [ "$b" = "lpgcc" ]; then
40 if [ "$CC" != "" ]; then
48 # This will set the _LIBDIR and _INCDIR variables used below
51 _LDSCRIPT="-Wl,-T,$_LIBDIR/libpayload.ldscript"
54 $DEFAULT_CC $1 -S -xc /dev/null -o .$$.tmp &> /dev/null
63 # This variable will contain the command line that the user wants to
68 # Process various flags that would change our behavior
70 while [ $# -gt 0 ]; do
72 -m32|-fno-stack-protector)
77 error "Invalid option --64 - only 32 bit architectures are supported"
100 _CFLAGS="-m32 -nostdinc -nostdlib -I$_INCDIR"
102 # Check for the -fno-stack-protector silliness
104 trygccoption -fno-stack-protector
105 [ $? -eq 0 ] && _CFLAGS="$_CFLAGS -fno-stack-protector"
107 _CFLAGS="$_CFLAGS -I`$DEFAULT_CC -m32 -print-search-dirs | head -n 1 | cut -d' ' -f2`include"
109 _LDFLAGS="$_LDSCRIPT -static"
111 if [ $DOLINK -eq 0 ]; then
112 if [ $DEBUGME -eq 1 ]; then
113 echo "$DEFAULT_CC $_CFLAGS $CMDLINE"
116 $DEFAULT_CC $_CFLAGS $CMDLINE
118 _LIBGCC=`$DEFAULT_CC -m32 -print-libgcc-file-name`
119 if [ $DEBUGME -eq 1 ]; then
120 echo "$DEFAULT_CC $_CFLAGS $_LDFLAGS $_LIBDIR/i386/head.o $CMDLINE $_LIBDIR/libpayload.a $_LIBGCC"
123 # Note: i386/head.o must be the first object being linked, because it
124 # contains a Multiboot header. The Multiboot standard requires this
125 # header to be placed below 0x2000 in the resulting image. See:
126 # http://www.gnu.org/software/grub/manual/multiboot/html_node/OS-image-format.html
128 $DEFAULT_CC $_CFLAGS $_LDFLAGS $_LIBDIR/i386/head.o $CMDLINE $_LIBDIR/libpayload.a $_LIBGCC