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98790d81 | 1 | ;\r |
2 | ; Copyright (c) 2011, Hewlett-Packard Company. All rights reserved.<BR>\r | |
3 | ; \r | |
4 | ; This program and the accompanying materials \r | |
5 | ; are licensed and made available under the terms and conditions of the BSD License \r | |
6 | ; which accompanies this distribution. The full text of the license may be found at \r | |
7 | ; http://opensource.org/licenses/bsd-license.php \r | |
8 | ; \r | |
9 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | ; \r | |
12 | \r | |
13 | LOCAL &fvbase &fvsig &fvsig &ffsoffset &ffsfilesize &ffsfileaddr\r | |
14 | ENTRY &fvbase\r | |
15 | \r | |
16 | &fvsig=Data.Long(a:&fvbase+0x28)\r | |
17 | if &fvsig!=0x4856465F\r | |
18 | (\r | |
19 | print "FV does not have proper signature, exiting"\r | |
20 | return\r | |
21 | )\r | |
22 | \r | |
23 | print "FV signature found"\r | |
24 | \r | |
25 | &fvlen=Data.Long(a:&fvbase+0x20)\r | |
26 | \r | |
27 | ; first ffs file is after fv header, use headerlength field\r | |
28 | &ffsoffset=(Data.Long(a:&fvbase+0x30)&0xffff)\r | |
29 | \r | |
30 | ; loop through ffs files\r | |
31 | &ffsfilesize=1\r | |
32 | while (&ffsfilesize!=0)&&(&ffsoffset<(&fvlen))\r | |
33 | (\r | |
34 | &ffsfileaddr=&fvbase+&ffsoffset\r | |
35 | ;print "found ffs file at &ffsfileaddr"\r | |
36 | \r | |
37 | ; process ffs file and increment by ffs file size field\r | |
38 | gosub ProcessFfsFile &ffsfileaddr\r | |
39 | \r | |
40 | &ffsfilesize=(Data.Long(a:&ffsfileaddr+0x14)&0x00ffffff)\r | |
41 | ;print "ffsfilesize is &ffsfilesize"\r | |
42 | \r | |
43 | &ffsoffset=&ffsoffset+&ffsfilesize\r | |
44 | \r | |
45 | &ffsfilesize=(Data.Long(a:&fvbase+&ffsoffset+0x14)&0x00ffffff)\r | |
46 | ;print "ffsfilesize now is &ffsfilesize"\r | |
47 | if &ffsfilesize==0xffffff\r | |
48 | (\r | |
49 | enddo\r | |
50 | )\r | |
51 | \r | |
52 | ; align to next 8 byte boundary\r | |
53 | if (&ffsoffset&0x7)!=0\r | |
54 | (\r | |
55 | &ffsoffset=&ffsoffset+(0x8-(&ffsoffset&0x7))\r | |
56 | )\r | |
57 | \r | |
58 | ) ; end fv ffs loop\r | |
59 | \r | |
60 | enddo\r | |
61 | \r | |
62 | ProcessFfsFile:\r | |
63 | LOCAL &ffsfilestart &ffsfilesize &ffsfiletype &secoffset &secsize\r | |
64 | ENTRY &ffsfilestart\r | |
65 | \r | |
66 | ;print "processing ffs file at &ffsfilestart"\r | |
67 | &ffsfilesize=Data.Long(a:&ffsfilestart+0x14)\r | |
68 | &ffsfiletype=(&ffsfilesize&0xff000000)>>24.\r | |
69 | &ffsfilesize=&ffsfilesize&0x00ffffff\r | |
70 | \r | |
71 | if &ffsfiletype==0\r | |
72 | (\r | |
73 | return\r | |
74 | )\r | |
75 | \r | |
76 | print "ffs file at &ffsfilestart size &ffsfilesize type &ffsfiletype"\r | |
77 | \r | |
78 | &secoffset=&ffsfilestart+0x18\r | |
79 | \r | |
80 | ; loop through sections in file\r | |
81 | while &secoffset<(&ffsfilestart+&ffsfilesize)\r | |
82 | (\r | |
83 | print "secoffset at &secoffset"\r | |
84 | \r | |
85 | ; process fv section and increment section offset by size\r | |
86 | &secsize=(Data.Long(a:&secoffset)&0x00ffffff)\r | |
87 | \r | |
88 | gosub ProcessFvSection &secoffset\r | |
89 | \r | |
90 | \r | |
91 | &secoffset=(&secoffset+&secsize)\r | |
92 | \r | |
93 | ;print "secsize is &secsize"\r | |
94 | ;print "secoffset at &secoffset"\r | |
95 | \r | |
96 | ; align to next 4 byte boundary\r | |
97 | if (&secoffset&0x3)!=0\r | |
98 | (\r | |
99 | &secoffset=&secoffset+(0x4-(&secoffset&0x3))\r | |
100 | )\r | |
101 | ) ; end section loop\r | |
102 | return\r | |
103 | \r | |
104 | \r | |
105 | ProcessFvSection:\r | |
106 | LOCAL &secstart §ionsize §iontype &secoffset &secsize\r | |
107 | ENTRY &secstart\r | |
108 | \r | |
109 | §ionsize=Data.Long(a:&secstart)\r | |
110 | §iontype=((§ionsize&0xff000000)>>24.)\r | |
111 | §ionsize=§ionsize&0x00ffffff;\r | |
112 | \r | |
113 | print "fv section at &secstart size §ionsize type §iontype"\r | |
114 | \r | |
115 | if §iontype==0x10 ; PE32\r | |
116 | (\r | |
117 | do EfiProcessPeImage (&secstart+0x4)\r | |
118 | )\r | |
119 | else\r | |
120 | (\r | |
121 | if §iontype==0x12 ; TE\r | |
122 | (\r | |
123 | do EfiProcessTeImage (&secstart+0x4)\r | |
124 | )\r | |
125 | else\r | |
126 | (\r | |
127 | print "unknown section type"\r | |
128 | )\r | |
129 | )\r | |
130 | \r | |
131 | return\r |