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 if [ "$CC" != "" ]; then
39 # This will set the _LIBDIR and _INCDIR variables used below
43 $DEFAULT_CC $1 -S -xc /dev/null -o .$$.tmp &> /dev/null
52 # This variable will contain the command line that the user wants to
57 # Process various flags that would change our behavior
59 while [ $# -gt 0 ]; do
61 -m32|-fno-stack-protector)
66 error "Invalid option --64 - only 32 bit architectures are supported"
84 _CFLAGS="-m32 -nostdinc -nostdlib -I$_INCDIR"
86 # Check for the -fno-stack-protector silliness
88 trygccoption -fno-stack-protector
89 [ $? -eq 0 ] && _CFLAGS="$_CFLAGS -fno-stack-protector"
91 _CFLAGS="$_CFLAGS -I`$DEFAULT_CC -m32 -print-search-dirs | head -n 1 | cut -d' ' -f2`include"
93 _LDFLAGS="-Wl,-T,$_LIBDIR/libpayload.ldscript -static"
95 if [ $DOLINK -eq 0 ]; then
96 if [ $DEBUGME -eq 1 ]; then
97 echo "$DEFAULT_CC $_CFLAGS $CMDLINE"
100 $DEFAULT_CC $_CFLAGS $CMDLINE
102 _LIBGCC=`$DEFAULT_CC -m32 -print-libgcc-file-name`
103 if [ $DEBUGME -eq 1 ]; then
104 echo "$DEFAULT_CC $_CFLAGS $_LDFLAGS $_LIBDIR/i386/head.o $CMDLINE $_LIBDIR/libpayload.a $_LIBGCC"
107 # Note: i386/head.o must be the first object being linked, because it
108 # contains a Multiboot header. The Multiboot standard requires this
109 # header to be placed below 0x2000 in the resulting image. See:
110 # http://www.gnu.org/software/grub/manual/multiboot/html_node/OS-image-format.html
112 $DEFAULT_CC $_CFLAGS $_LDFLAGS $_LIBDIR/i386/head.o $CMDLINE $_LIBDIR/libpayload.a $_LIBGCC