1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
#!/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 = $CC"
if [ -n "$CC" ]; then
b=`basename $CC`
if [ "$b" = "lpgcc" ]; then
CC=""
fi
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 /dev/null &> /dev/null
return $?
}
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="-L$BASE/../lib $_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 -lpayload $_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 -lpayload $_LIBGCC
fi
|
