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authorAl Viro <viro@ftp.linux.org.uk>2006-09-22 20:37:41 -0400
committerPaul Mackerras <paulus@samba.org>2006-09-26 01:41:02 -0400
commitc32527a14049130eb29103b8da27520f07092371 (patch)
tree7b99a321bc489d5e774b20ee456021f15fa151b0 /arch/ppc
parent8c42ec2c99502f8a81076f24f57775b9c646351a (diff)
[POWERPC] rewrite mkprep and mkbugboot in sane C
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc')
-rw-r--r--arch/ppc/boot/utils/mkbugboot.c208
-rw-r--r--arch/ppc/boot/utils/mkprep.c416
2 files changed, 267 insertions, 357 deletions
diff --git a/arch/ppc/boot/utils/mkbugboot.c b/arch/ppc/boot/utils/mkbugboot.c
index 29115e01f60..1640c4199ca 100644
--- a/arch/ppc/boot/utils/mkbugboot.c
+++ b/arch/ppc/boot/utils/mkbugboot.c
@@ -19,36 +19,13 @@
19#include <stdlib.h> 19#include <stdlib.h>
20#include <errno.h> 20#include <errno.h>
21#include <fcntl.h> 21#include <fcntl.h>
22#include <netinet/in.h>
22#ifdef __sun__ 23#ifdef __sun__
23#include <inttypes.h> 24#include <inttypes.h>
24#else 25#else
25#include <stdint.h> 26#include <stdint.h>
26#endif 27#endif
27 28
28#ifdef __i386__
29#define cpu_to_be32(x) le32_to_cpu(x)
30#define cpu_to_be16(x) le16_to_cpu(x)
31#else
32#define cpu_to_be32(x) (x)
33#define cpu_to_be16(x) (x)
34#endif
35
36#define cpu_to_le32(x) le32_to_cpu((x))
37unsigned long le32_to_cpu(unsigned long x)
38{
39 return (((x & 0x000000ffU) << 24) |
40 ((x & 0x0000ff00U) << 8) |
41 ((x & 0x00ff0000U) >> 8) |
42 ((x & 0xff000000U) >> 24));
43}
44
45#define cpu_to_le16(x) le16_to_cpu((x))
46unsigned short le16_to_cpu(unsigned short x)
47{
48 return (((x & 0x00ff) << 8) |
49 ((x & 0xff00) >> 8));
50}
51
52/* size of read buffer */ 29/* size of read buffer */
53#define SIZE 0x1000 30#define SIZE 0x1000
54 31
@@ -62,124 +39,109 @@ typedef struct bug_boot_header {
62 39
63#define HEADER_SIZE sizeof(bug_boot_header_t) 40#define HEADER_SIZE sizeof(bug_boot_header_t)
64 41
65uint32_t copy_image(int32_t in_fd, int32_t out_fd) 42void update_checksum(void *buf, size_t size, uint16_t *sum)
66{ 43{
67 uint8_t buf[SIZE]; 44 uint32_t csum = *sum;
68 int n; 45
69 uint32_t image_size = 0; 46 while (size) {
70 uint8_t zero = 0; 47 csum += *(uint16_t *)buf;
71 48 if (csum > 0xffff)
72 lseek(in_fd, ELF_HEADER_SIZE, SEEK_SET); 49 csum -= 0xffff;
73 50 buf = (uint16_t *)buf + 1;
74 /* Copy an image while recording its size */ 51 size -= 2;
75 while ( (n = read(in_fd, buf, SIZE)) > 0 ) 52 }
76 { 53 *sum = csum;
77 image_size = image_size + n;
78 write(out_fd, buf, n);
79 }
80
81 /* BUG romboot requires that our size is divisible by 2 */
82 /* align image to 2 byte boundary */
83 if (image_size % 2)
84 {
85 image_size++;
86 write(out_fd, &zero, 1);
87 }
88
89 return image_size;
90} 54}
91 55
92void write_bugboot_header(int32_t out_fd, uint32_t boot_size) 56uint32_t copy_image(int in_fd, int out_fd, uint16_t *sum)
93{ 57{
94 uint8_t header_block[HEADER_SIZE]; 58 uint8_t buf[SIZE];
95 bug_boot_header_t *bbh = (bug_boot_header_t *)&header_block[0]; 59 int offset = 0;
96 60 int n;
97 memset(header_block, 0, HEADER_SIZE); 61 uint32_t image_size = 0;
98 62
99 /* Fill in the PPCBUG ROM boot header */ 63 lseek(in_fd, ELF_HEADER_SIZE, SEEK_SET);
100 strncpy(bbh->magic_word, "BOOT", 4); /* PPCBUG magic word */ 64
101 bbh->entry_offset = cpu_to_be32(HEADER_SIZE); /* Entry address */ 65 /* Copy an image while recording its size */
102 bbh->routine_length= cpu_to_be32(HEADER_SIZE+boot_size+2); /* Routine length */ 66 while ( (n = read(in_fd, buf + offset, SIZE - offset)) > 0 ) {
103 strncpy(bbh->routine_name, "LINUXROM", 8); /* Routine name */ 67 n += offset;
104 68 offset = n & 1;
105 /* Output the header and bootloader to the file */ 69 n -= offset;
106 write(out_fd, header_block, HEADER_SIZE); 70 image_size = image_size + n;
71 /* who's going to deal with short writes? */
72 write(out_fd, buf, n);
73 update_checksum(buf, n, sum);
74 if (offset)
75 buf[0] = buf[n];
76 }
77
78 /* BUG romboot requires that our size is divisible by 2 */
79 /* align image to 2 byte boundary */
80 if (offset) {
81 image_size += 2;
82 buf[1] = '\0';
83 write(out_fd, buf, 2);
84 update_checksum(buf, 2, sum);
85 }
86 return image_size;
107} 87}
108 88
109uint16_t calc_checksum(int32_t bug_fd) 89void write_bugboot_header(int out_fd, uint32_t boot_size, uint16_t *sum)
110{ 90{
111 uint32_t checksum_var = 0; 91 static bug_boot_header_t bbh = {
112 uint8_t buf[2]; 92 .magic_word = "BOOT",
113 int n; 93 .routine_name = "LINUXROM"
114 94 };
115 /* Checksum loop */ 95
116 while ( (n = read(bug_fd, buf, 2) ) ) 96 /* Fill in the PPCBUG ROM boot header */
117 { 97 bbh.entry_offset = htonl(HEADER_SIZE); /* Entry address */
118 checksum_var = checksum_var + *(uint16_t *)buf; 98 bbh.routine_length= htonl(HEADER_SIZE+boot_size+2); /* Routine length */
119 99
120 /* If we carry out, mask it and add one to the checksum */ 100 /* Output the header and bootloader to the file */
121 if (checksum_var >> 16) 101 write(out_fd, &bbh, sizeof(bug_boot_header_t));
122 checksum_var = (checksum_var & 0x0000ffff) + 1; 102 update_checksum(&bbh, sizeof(bug_boot_header_t), sum);
123 }
124
125 return checksum_var;
126} 103}
127 104
128int main(int argc, char *argv[]) 105int main(int argc, char *argv[])
129{ 106{
130 int32_t image_fd, bugboot_fd; 107 int image_fd, bugboot_fd;
131 int argptr = 1; 108 uint32_t kernel_size = 0;
132 uint32_t kernel_size = 0; 109 uint16_t checksum = 0;
133 uint16_t checksum = 0;
134 uint8_t bugbootname[256];
135
136 if ( (argc != 3) )
137 {
138 fprintf(stderr, "usage: %s <kernel_image> <bugboot>\n",argv[0]);
139 exit(-1);
140 }
141
142 /* Get file args */
143
144 /* kernel image file */
145 if ((image_fd = open( argv[argptr] , 0)) < 0)
146 exit(-1);
147 argptr++;
148 110
149 /* bugboot file */ 111 if (argc != 3) {
150 if ( !strcmp( argv[argptr], "-" ) ) 112 fprintf(stderr, "usage: %s <kernel_image> <bugboot>\n",argv[0]);
151 bugboot_fd = 1; /* stdout */ 113 exit(-1);
152 else 114 }
153 if ((bugboot_fd = creat( argv[argptr] , 0755)) < 0)
154 exit(-1);
155 else
156 strcpy(bugbootname, argv[argptr]);
157 argptr++;
158 115
159 /* Set file position after ROM header block where zImage will be written */ 116 /* Get file args */
160 lseek(bugboot_fd, HEADER_SIZE, SEEK_SET);
161 117
162 /* Copy kernel image into bugboot image */ 118 /* kernel image file */
163 kernel_size = copy_image(image_fd, bugboot_fd); 119 if ((image_fd = open(argv[1] , 0)) < 0)
164 close(image_fd); 120 exit(-1);
165 121
166 /* Set file position to beginning where header/romboot will be written */ 122 /* bugboot file */
167 lseek(bugboot_fd, 0, SEEK_SET); 123 if (!strcmp(argv[2], "-"))
124 bugboot_fd = 1; /* stdout */
125 else if ((bugboot_fd = creat(argv[2] , 0755)) < 0)
126 exit(-1);
168 127
169 /* Write out BUG header/romboot */ 128 /* Set file position after ROM header block where zImage will be written */
170 write_bugboot_header(bugboot_fd, kernel_size); 129 lseek(bugboot_fd, HEADER_SIZE, SEEK_SET);
171 130
172 /* Close bugboot file */ 131 /* Copy kernel image into bugboot image */
173 close(bugboot_fd); 132 kernel_size = copy_image(image_fd, bugboot_fd, &checksum);
174 133
175 /* Reopen it as read/write */ 134 /* Set file position to beginning where header/romboot will be written */
176 bugboot_fd = open(bugbootname, O_RDWR); 135 lseek(bugboot_fd, 0, SEEK_SET);
177 136
178 /* Calculate checksum */ 137 /* Write out BUG header/romboot */
179 checksum = calc_checksum(bugboot_fd); 138 write_bugboot_header(bugboot_fd, kernel_size, &checksum);
180 139
181 /* Write out the calculated checksum */ 140 /* Write out the calculated checksum */
182 write(bugboot_fd, &checksum, 2); 141 lseek(bugboot_fd, 0, SEEK_END);
142 write(bugboot_fd, &checksum, 2);
183 143
184 return 0; 144 /* Close bugboot file */
145 close(bugboot_fd);
146 return 0;
185} 147}
diff --git a/arch/ppc/boot/utils/mkprep.c b/arch/ppc/boot/utils/mkprep.c
index f6d5a2f2fcf..192bb397126 100644
--- a/arch/ppc/boot/utils/mkprep.c
+++ b/arch/ppc/boot/utils/mkprep.c
@@ -15,279 +15,227 @@
15 * Modified for Sparc hosted builds by Peter Wahl <PeterWahl@web.de> 15 * Modified for Sparc hosted builds by Peter Wahl <PeterWahl@web.de>
16 */ 16 */
17 17
18#include <fcntl.h>
19#include <stdio.h> 18#include <stdio.h>
20#include <stdlib.h>
21#include <string.h> 19#include <string.h>
22#include <strings.h> 20#include <stdlib.h>
23#include <sys/stat.h>
24#include <unistd.h>
25
26#define cpu_to_le32(x) le32_to_cpu((x))
27unsigned long le32_to_cpu(unsigned long x)
28{
29 return (((x & 0x000000ffU) << 24) |
30 ((x & 0x0000ff00U) << 8) |
31 ((x & 0x00ff0000U) >> 8) |
32 ((x & 0xff000000U) >> 24));
33}
34
35
36#define cpu_to_le16(x) le16_to_cpu((x))
37unsigned short le16_to_cpu(unsigned short x)
38{
39 return (((x & 0x00ff) << 8) |
40 ((x & 0xff00) >> 8));
41}
42
43#define cpu_to_be32(x) (x)
44#define be32_to_cpu(x) (x)
45#define cpu_to_be16(x) (x)
46#define be16_to_cpu(x) (x)
47 21
48/* size of read buffer */ 22/* size of read buffer */
49#define SIZE 0x1000 23#define SIZE 0x1000
50 24
51
52typedef unsigned long dword_t;
53typedef unsigned short word_t;
54typedef unsigned char byte_t;
55typedef byte_t block_t[512];
56typedef byte_t page_t[4096];
57
58
59/* 25/*
60 * Partition table entry 26 * Partition table entry
61 * - from the PReP spec 27 * - from the PReP spec
62 */ 28 */
63typedef struct partition_entry { 29typedef struct partition_entry {
64 byte_t boot_indicator; 30 unsigned char boot_indicator;
65 byte_t starting_head; 31 unsigned char starting_head;
66 byte_t starting_sector; 32 unsigned char starting_sector;
67 byte_t starting_cylinder; 33 unsigned char starting_cylinder;
68 34
69 byte_t system_indicator; 35 unsigned char system_indicator;
70 byte_t ending_head; 36 unsigned char ending_head;
71 byte_t ending_sector; 37 unsigned char ending_sector;
72 byte_t ending_cylinder; 38 unsigned char ending_cylinder;
73 39
74 dword_t beginning_sector; 40 unsigned char beginning_sector[4];
75 dword_t number_of_sectors; 41 unsigned char number_of_sectors[4];
76} partition_entry_t; 42} partition_entry_t;
77 43
78#define BootActive 0x80 44#define BootActive 0x80
79#define SystemPrep 0x41 45#define SystemPrep 0x41
80 46
81void copy_image(int , int); 47void copy_image(FILE *, FILE *);
82void write_prep_partition(int , int ); 48void write_prep_partition(FILE *, FILE *);
83void write_asm_data( int in, int out ); 49void write_asm_data(FILE *, FILE *);
84 50
85unsigned int elfhdr_size = 65536; 51unsigned int elfhdr_size = 65536;
86 52
87int main(int argc, char *argv[]) 53int main(int argc, char *argv[])
88{ 54{
89 int in_fd, out_fd; 55 FILE *in, *out;
90 int argptr = 1; 56 int argptr = 1;
91 unsigned int prep = 0; 57 int prep = 0;
92 unsigned int asmoutput = 0; 58 int asmoutput = 0;
93 59
94 if ( (argc < 3) || (argc > 4) ) 60 if (argc < 3 || argc > 4) {
95 { 61 fprintf(stderr, "usage: %s [-pbp] [-asm] <boot-file> <image>\n",
96 fprintf(stderr, "usage: %s [-pbp] [-asm] <boot-file> <image>\n",argv[0]); 62 argv[0]);
97 exit(-1); 63 exit(-1);
98 } 64 }
99 65
100 /* needs to handle args more elegantly -- but this is a small/simple program */ 66/* needs to handle args more elegantly -- but this is a small/simple program */
101 67
102 /* check for -pbp */ 68 /* check for -pbp */
103 if ( !strcmp( argv[argptr], "-pbp" ) ) 69 if (!strcmp(argv[argptr], "-pbp")) {
104 { 70 prep = 1;
105 prep = 1; 71 argptr++;
106 argptr++; 72 }
107 } 73
108 74 /* check for -asm */
109 /* check for -asm */ 75 if (!strcmp(argv[argptr], "-asm")) {
110 if ( !strcmp( argv[argptr], "-asm" ) ) 76 asmoutput = 1;
111 { 77 argptr++;
112 asmoutput = 1; 78 }
113 argptr++; 79
114 } 80 /* input file */
115 81 if (!strcmp(argv[argptr], "-"))
116 /* input file */ 82 in = stdin;
117 if ( !strcmp( argv[argptr], "-" ) ) 83 else if (!(in = fopen(argv[argptr], "r")))
118 in_fd = 0; /* stdin */ 84 exit(-1);
119 else 85 argptr++;
120 if ((in_fd = open( argv[argptr] , 0)) < 0) 86
121 exit(-1); 87 /* output file */
122 argptr++; 88 if (!strcmp(argv[argptr], "-"))
123 89 out = stdout;
124 /* output file */ 90 else if (!(out = fopen(argv[argptr], "w")))
125 if ( !strcmp( argv[argptr], "-" ) ) 91 exit(-1);
126 out_fd = 1; /* stdout */ 92 argptr++;
127 else 93
128 if ((out_fd = creat( argv[argptr] , 0755)) < 0) 94 /* skip elf header in input file */
129 exit(-1); 95 /*if ( !prep )*/
130 argptr++; 96 fseek(in, elfhdr_size, SEEK_SET);
131 97
132 /* skip elf header in input file */ 98 /* write prep partition if necessary */
133 /*if ( !prep )*/ 99 if (prep)
134 lseek(in_fd, elfhdr_size, SEEK_SET); 100 write_prep_partition(in, out);
135 101
136 /* write prep partition if necessary */ 102 /* write input image to bootimage */
137 if ( prep ) 103 if (asmoutput)
138 write_prep_partition( in_fd, out_fd ); 104 write_asm_data(in, out);
139 105 else
140 /* write input image to bootimage */ 106 copy_image(in, out);
141 if ( asmoutput ) 107
142 write_asm_data( in_fd, out_fd ); 108 return 0;
143 else
144 copy_image(in_fd, out_fd);
145
146 return 0;
147} 109}
148 110
149void write_prep_partition(int in, int out) 111void store_le32(unsigned int v, unsigned char *p)
150{ 112{
151 unsigned char block[512]; 113 p[0] = v;
152 partition_entry_t pe; 114 p[1] = v >>= 8;
153 dword_t *entry = (dword_t *)&block[0]; 115 p[2] = v >>= 8;
154 dword_t *length = (dword_t *)&block[sizeof(long)]; 116 p[3] = v >> 8;
155 struct stat info; 117}
156 118
157 if (fstat(in, &info) < 0) 119void write_prep_partition(FILE *in, FILE *out)
158 { 120{
159 fprintf(stderr,"info failed\n"); 121 unsigned char block[512];
160 exit(-1); 122 partition_entry_t pe;
161 } 123 unsigned char *entry = block;
162 124 unsigned char *length = block + 4;
163 bzero( block, sizeof block ); 125 long pos = ftell(in), size;
164 126
165 /* set entry point and boot image size skipping over elf header */ 127 if (fseek(in, 0, SEEK_END) < 0) {
166#ifdef __i386__ 128 fprintf(stderr,"info failed\n");
167 *entry = 0x400/*+65536*/; 129 exit(-1);
168 *length = info.st_size-elfhdr_size+0x400; 130 }
169#else 131 size = ftell(in);
170 *entry = cpu_to_le32(0x400/*+65536*/); 132 if (fseek(in, pos, SEEK_SET) < 0) {
171 *length = cpu_to_le32(info.st_size-elfhdr_size+0x400); 133 fprintf(stderr,"info failed\n");
172#endif /* __i386__ */ 134 exit(-1);
173 135 }
174 /* sets magic number for msdos partition (used by linux) */ 136
175 block[510] = 0x55; 137 memset(block, '\0', sizeof(block));
176 block[511] = 0xAA; 138
177 139 /* set entry point and boot image size skipping over elf header */
178 /* 140 store_le32(0x400/*+65536*/, entry);
179 * Build a "PReP" partition table entry in the boot record 141 store_le32(size-elfhdr_size+0x400, length);
180 * - "PReP" may only look at the system_indicator 142
181 */ 143 /* sets magic number for msdos partition (used by linux) */
182 pe.boot_indicator = BootActive; 144 block[510] = 0x55;
183 pe.system_indicator = SystemPrep; 145 block[511] = 0xAA;
184 /* 146
185 * The first block of the diskette is used by this "boot record" which 147 /*
186 * actually contains the partition table. (The first block of the 148 * Build a "PReP" partition table entry in the boot record
187 * partition contains the boot image, but I digress...) We'll set up 149 * - "PReP" may only look at the system_indicator
188 * one partition on the diskette and it shall contain the rest of the 150 */
189 * diskette. 151 pe.boot_indicator = BootActive;
190 */ 152 pe.system_indicator = SystemPrep;
191 pe.starting_head = 0; /* zero-based */ 153 /*
192 pe.starting_sector = 2; /* one-based */ 154 * The first block of the diskette is used by this "boot record" which
193 pe.starting_cylinder = 0; /* zero-based */ 155 * actually contains the partition table. (The first block of the
194 pe.ending_head = 1; /* assumes two heads */ 156 * partition contains the boot image, but I digress...) We'll set up
195 pe.ending_sector = 18; /* assumes 18 sectors/track */ 157 * one partition on the diskette and it shall contain the rest of the
196 pe.ending_cylinder = 79; /* assumes 80 cylinders/diskette */ 158 * diskette.
197 159 */
198 /* 160 pe.starting_head = 0; /* zero-based */
199 * The "PReP" software ignores the above fields and just looks at 161 pe.starting_sector = 2; /* one-based */
200 * the next two. 162 pe.starting_cylinder = 0; /* zero-based */
201 * - size of the diskette is (assumed to be) 163 pe.ending_head = 1; /* assumes two heads */
202 * (2 tracks/cylinder)(18 sectors/tracks)(80 cylinders/diskette) 164 pe.ending_sector = 18; /* assumes 18 sectors/track */
203 * - unlike the above sector numbers, the beginning sector is zero-based! 165 pe.ending_cylinder = 79; /* assumes 80 cylinders/diskette */
204 */ 166
167 /*
168 * The "PReP" software ignores the above fields and just looks at
169 * the next two.
170 * - size of the diskette is (assumed to be)
171 * (2 tracks/cylinder)(18 sectors/tracks)(80 cylinders/diskette)
172 * - unlike the above sector numbers, the beginning sector is zero-based!
173 */
205#if 0 174#if 0
206 pe.beginning_sector = cpu_to_le32(1); 175 store_le32(1, pe.beginning_sector);
207#else
208 /* This has to be 0 on the PowerStack? */
209#ifdef __i386__
210 pe.beginning_sector = 0;
211#else 176#else
212 pe.beginning_sector = cpu_to_le32(0); 177 /* This has to be 0 on the PowerStack? */
213#endif /* __i386__ */ 178 store_le32(0, pe.beginning_sector);
214#endif 179#endif
215 180
216#ifdef __i386__ 181 store_le32(2*18*80-1, pe.number_of_sectors);
217 pe.number_of_sectors = 2*18*80-1;
218#else
219 pe.number_of_sectors = cpu_to_le32(2*18*80-1);
220#endif /* __i386__ */
221 182
222 memcpy(&block[0x1BE], &pe, sizeof(pe)); 183 memcpy(&block[0x1BE], &pe, sizeof(pe));
223 184
224 write( out, block, sizeof(block) ); 185 fwrite(block, sizeof(block), 1, out);
225 write( out, entry, sizeof(*entry) ); 186 fwrite(entry, 4, 1, out);
226 write( out, length, sizeof(*length) ); 187 fwrite(length, 4, 1, out);
227 /* set file position to 2nd sector where image will be written */ 188 /* set file position to 2nd sector where image will be written */
228 lseek( out, 0x400, SEEK_SET ); 189 fseek( out, 0x400, SEEK_SET );
229} 190}
230 191
231 192
232 193
233void 194void copy_image(FILE *in, FILE *out)
234copy_image(int in, int out)
235{ 195{
236 char buf[SIZE]; 196 char buf[SIZE];
237 int n; 197 int n;
238 198
239 while ( (n = read(in, buf, SIZE)) > 0 ) 199 while ( (n = fread(buf, 1, SIZE, in)) > 0 )
240 write(out, buf, n); 200 fwrite(buf, 1, n, out);
241} 201}
242 202
243 203
244void 204void
245write_asm_data( int in, int out ) 205write_asm_data(FILE *in, FILE *out)
246{ 206{
247 int i, cnt, pos, len; 207 int i, cnt, pos = 0;
248 unsigned int cksum, val; 208 unsigned int cksum = 0, val;
249 unsigned char *lp; 209 unsigned char *lp;
250 unsigned char buf[SIZE]; 210 unsigned char buf[SIZE];
251 unsigned char str[256]; 211 size_t len;
252 212
253 write( out, "\t.data\n\t.globl input_data\ninput_data:\n", 213 fputs("\t.data\n\t.globl input_data\ninput_data:\n", out);
254 strlen( "\t.data\n\t.globl input_data\ninput_data:\n" ) ); 214 while ((len = fread(buf, 1, sizeof(buf), in)) > 0) {
255 pos = 0; 215 cnt = 0;
256 cksum = 0; 216 lp = buf;
257 while ((len = read(in, buf, sizeof(buf))) > 0) 217 /* Round up to longwords */
258 { 218 while (len & 3)
259 cnt = 0; 219 buf[len++] = '\0';
260 lp = (unsigned char *)buf; 220 for (i = 0; i < len; i += 4) {
261 len = (len + 3) & ~3; /* Round up to longwords */ 221 if (cnt == 0)
262 for (i = 0; i < len; i += 4) 222 fputs("\t.long\t", out);
263 { 223 fprintf(out, "0x%02X%02X%02X%02X",
264 if (cnt == 0) 224 lp[0], lp[1], lp[2], lp[3]);
265 { 225 val = *(unsigned long *)lp;
266 write( out, "\t.long\t", strlen( "\t.long\t" ) ); 226 cksum ^= val;
267 } 227 lp += 4;
268 sprintf( str, "0x%02X%02X%02X%02X", lp[0], lp[1], lp[2], lp[3]); 228 if (++cnt == 4) {
269 write( out, str, strlen(str) ); 229 cnt = 0;
270 val = *(unsigned long *)lp; 230 fprintf(out, " # %x \n", pos+i-12);
271 cksum ^= val; 231 } else {
272 lp += 4; 232 fputs(",", out);
273 if (++cnt == 4) 233 }
274 { 234 }
275 cnt = 0; 235 if (cnt)
276 sprintf( str, " # %x \n", pos+i-12); 236 fputs("0\n", out);
277 write( out, str, strlen(str) ); 237 pos += len;
278 } else 238 }
279 { 239 fprintf(out, "\t.globl input_len\ninput_len:\t.long\t0x%x\n", pos);
280 write( out, ",", 1 ); 240 fprintf(stderr, "cksum = %x\n", cksum);
281 }
282 }
283 if (cnt)
284 {
285 write( out, "0\n", 2 );
286 }
287 pos += len;
288 }
289 sprintf(str, "\t.globl input_len\ninput_len:\t.long\t0x%x\n", pos);
290 write( out, str, strlen(str) );
291
292 fprintf(stderr, "cksum = %x\n", cksum);
293} 241}
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