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1 | 5fe141fd | bellard | /*
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2 | 5fe141fd | bellard | * QEMU Executable loader
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3 | 5fafdf24 | ths | *
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4 | 5fe141fd | bellard | * Copyright (c) 2006 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | 5fe141fd | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 5fe141fd | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | 5fe141fd | bellard | * in the Software without restriction, including without limitation the rights
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9 | 5fe141fd | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 5fe141fd | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | 5fe141fd | bellard | * furnished to do so, subject to the following conditions:
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12 | 5fe141fd | bellard | *
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13 | 5fe141fd | bellard | * The above copyright notice and this permission notice shall be included in
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14 | 5fe141fd | bellard | * all copies or substantial portions of the Software.
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15 | 5fe141fd | bellard | *
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16 | 5fe141fd | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 5fe141fd | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 5fe141fd | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 5fe141fd | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 5fe141fd | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 5fe141fd | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 5fe141fd | bellard | * THE SOFTWARE.
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23 | 5fe141fd | bellard | */
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24 | 87ecb68b | pbrook | #include "qemu-common.h" |
25 | 5fe141fd | bellard | #include "disas.h" |
26 | 9596ebb7 | pbrook | #include "sysemu.h" |
27 | 1c7b3754 | pbrook | #include "uboot_image.h" |
28 | 5fe141fd | bellard | |
29 | 5fe141fd | bellard | /* return the size or -1 if error */
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30 | 5fe141fd | bellard | int get_image_size(const char *filename) |
31 | 5fe141fd | bellard | { |
32 | 5fe141fd | bellard | int fd, size;
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33 | 5fe141fd | bellard | fd = open(filename, O_RDONLY | O_BINARY); |
34 | 5fe141fd | bellard | if (fd < 0) |
35 | 5fe141fd | bellard | return -1; |
36 | 5fe141fd | bellard | size = lseek(fd, 0, SEEK_END);
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37 | 5fe141fd | bellard | close(fd); |
38 | 5fe141fd | bellard | return size;
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39 | 5fe141fd | bellard | } |
40 | 5fe141fd | bellard | |
41 | 5fe141fd | bellard | /* return the size or -1 if error */
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42 | 293f78bc | blueswir1 | /* deprecated, because caller does not specify buffer size! */
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43 | 5fe141fd | bellard | int load_image(const char *filename, uint8_t *addr) |
44 | 5fe141fd | bellard | { |
45 | 5fe141fd | bellard | int fd, size;
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46 | 5fe141fd | bellard | fd = open(filename, O_RDONLY | O_BINARY); |
47 | 5fe141fd | bellard | if (fd < 0) |
48 | 5fe141fd | bellard | return -1; |
49 | 5fe141fd | bellard | size = lseek(fd, 0, SEEK_END);
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50 | 5fe141fd | bellard | lseek(fd, 0, SEEK_SET);
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51 | 5fe141fd | bellard | if (read(fd, addr, size) != size) {
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52 | 5fe141fd | bellard | close(fd); |
53 | 5fe141fd | bellard | return -1; |
54 | 5fe141fd | bellard | } |
55 | 5fe141fd | bellard | close(fd); |
56 | 5fe141fd | bellard | return size;
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57 | 5fe141fd | bellard | } |
58 | 5fe141fd | bellard | |
59 | 293f78bc | blueswir1 | /* return the amount read, just like fread. 0 may mean error or eof */
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60 | 293f78bc | blueswir1 | int fread_targphys(target_phys_addr_t dst_addr, size_t nbytes, FILE *f)
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61 | 293f78bc | blueswir1 | { |
62 | 293f78bc | blueswir1 | uint8_t buf[4096];
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63 | 293f78bc | blueswir1 | target_phys_addr_t dst_begin = dst_addr; |
64 | 293f78bc | blueswir1 | size_t want, did; |
65 | 293f78bc | blueswir1 | |
66 | 293f78bc | blueswir1 | while (nbytes) {
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67 | 293f78bc | blueswir1 | want = nbytes > sizeof(buf) ? sizeof(buf) : nbytes; |
68 | 293f78bc | blueswir1 | did = fread(buf, 1, want, f);
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69 | 293f78bc | blueswir1 | if (did != want) break; |
70 | 293f78bc | blueswir1 | |
71 | 293f78bc | blueswir1 | cpu_physical_memory_write_rom(dst_addr, buf, did); |
72 | 293f78bc | blueswir1 | dst_addr += did; |
73 | 293f78bc | blueswir1 | nbytes -= did; |
74 | 293f78bc | blueswir1 | } |
75 | 293f78bc | blueswir1 | return dst_addr - dst_begin;
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76 | 293f78bc | blueswir1 | } |
77 | 293f78bc | blueswir1 | |
78 | 293f78bc | blueswir1 | /* returns 0 on error, 1 if ok */
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79 | 293f78bc | blueswir1 | int fread_targphys_ok(target_phys_addr_t dst_addr, size_t nbytes, FILE *f)
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80 | 293f78bc | blueswir1 | { |
81 | 293f78bc | blueswir1 | return fread_targphys(dst_addr, nbytes, f) == nbytes;
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82 | 293f78bc | blueswir1 | } |
83 | 293f78bc | blueswir1 | |
84 | 293f78bc | blueswir1 | /* read()-like version */
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85 | 293f78bc | blueswir1 | int read_targphys(int fd, target_phys_addr_t dst_addr, size_t nbytes) |
86 | 293f78bc | blueswir1 | { |
87 | 293f78bc | blueswir1 | uint8_t buf[4096];
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88 | 293f78bc | blueswir1 | target_phys_addr_t dst_begin = dst_addr; |
89 | 293f78bc | blueswir1 | size_t want, did; |
90 | 293f78bc | blueswir1 | |
91 | 293f78bc | blueswir1 | while (nbytes) {
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92 | 293f78bc | blueswir1 | want = nbytes > sizeof(buf) ? sizeof(buf) : nbytes; |
93 | 293f78bc | blueswir1 | did = read(fd, buf, want); |
94 | 293f78bc | blueswir1 | if (did != want) break; |
95 | 293f78bc | blueswir1 | |
96 | 293f78bc | blueswir1 | cpu_physical_memory_write_rom(dst_addr, buf, did); |
97 | 293f78bc | blueswir1 | dst_addr += did; |
98 | 293f78bc | blueswir1 | nbytes -= did; |
99 | 293f78bc | blueswir1 | } |
100 | 293f78bc | blueswir1 | return dst_addr - dst_begin;
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101 | 293f78bc | blueswir1 | } |
102 | 293f78bc | blueswir1 | |
103 | 293f78bc | blueswir1 | /* return the size or -1 if error */
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104 | 293f78bc | blueswir1 | int load_image_targphys(const char *filename, |
105 | 293f78bc | blueswir1 | target_phys_addr_t addr, int max_sz)
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106 | 293f78bc | blueswir1 | { |
107 | 293f78bc | blueswir1 | FILE *f; |
108 | 293f78bc | blueswir1 | size_t got; |
109 | 293f78bc | blueswir1 | |
110 | 293f78bc | blueswir1 | f = fopen(filename, "rb");
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111 | 293f78bc | blueswir1 | if (!f) return -1; |
112 | 293f78bc | blueswir1 | |
113 | 293f78bc | blueswir1 | got = fread_targphys(addr, max_sz, f); |
114 | 293f78bc | blueswir1 | if (ferror(f)) { fclose(f); return -1; } |
115 | 293f78bc | blueswir1 | fclose(f); |
116 | 293f78bc | blueswir1 | |
117 | 293f78bc | blueswir1 | return got;
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118 | 293f78bc | blueswir1 | } |
119 | 293f78bc | blueswir1 | |
120 | 293f78bc | blueswir1 | void pstrcpy_targphys(target_phys_addr_t dest, int buf_size, |
121 | 293f78bc | blueswir1 | const char *source) |
122 | 293f78bc | blueswir1 | { |
123 | 293f78bc | blueswir1 | static const uint8_t nul_byte = 0; |
124 | 293f78bc | blueswir1 | const char *nulp; |
125 | 293f78bc | blueswir1 | |
126 | 293f78bc | blueswir1 | if (buf_size <= 0) return; |
127 | 293f78bc | blueswir1 | nulp = memchr(source, 0, buf_size);
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128 | 293f78bc | blueswir1 | if (nulp) {
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129 | 293f78bc | blueswir1 | cpu_physical_memory_write_rom(dest, (uint8_t *)source, |
130 | 293f78bc | blueswir1 | (nulp - source) + 1);
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131 | 293f78bc | blueswir1 | } else {
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132 | 293f78bc | blueswir1 | cpu_physical_memory_write_rom(dest, (uint8_t *)source, buf_size - 1);
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133 | 293f78bc | blueswir1 | cpu_physical_memory_write_rom(dest, &nul_byte, 1);
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134 | 293f78bc | blueswir1 | } |
135 | 293f78bc | blueswir1 | } |
136 | 293f78bc | blueswir1 | |
137 | 5fe141fd | bellard | /* A.OUT loader */
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138 | 5fe141fd | bellard | |
139 | 5fe141fd | bellard | struct exec
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140 | 5fe141fd | bellard | { |
141 | 5fe141fd | bellard | uint32_t a_info; /* Use macros N_MAGIC, etc for access */
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142 | 5fe141fd | bellard | uint32_t a_text; /* length of text, in bytes */
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143 | 5fe141fd | bellard | uint32_t a_data; /* length of data, in bytes */
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144 | 5fe141fd | bellard | uint32_t a_bss; /* length of uninitialized data area, in bytes */
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145 | 5fe141fd | bellard | uint32_t a_syms; /* length of symbol table data in file, in bytes */
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146 | 5fe141fd | bellard | uint32_t a_entry; /* start address */
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147 | 5fe141fd | bellard | uint32_t a_trsize; /* length of relocation info for text, in bytes */
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148 | 5fe141fd | bellard | uint32_t a_drsize; /* length of relocation info for data, in bytes */
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149 | 5fe141fd | bellard | }; |
150 | 5fe141fd | bellard | |
151 | 5fe141fd | bellard | #ifdef BSWAP_NEEDED
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152 | 5fe141fd | bellard | static void bswap_ahdr(struct exec *e) |
153 | 5fe141fd | bellard | { |
154 | 5fe141fd | bellard | bswap32s(&e->a_info); |
155 | 5fe141fd | bellard | bswap32s(&e->a_text); |
156 | 5fe141fd | bellard | bswap32s(&e->a_data); |
157 | 5fe141fd | bellard | bswap32s(&e->a_bss); |
158 | 5fe141fd | bellard | bswap32s(&e->a_syms); |
159 | 5fe141fd | bellard | bswap32s(&e->a_entry); |
160 | 5fe141fd | bellard | bswap32s(&e->a_trsize); |
161 | 5fe141fd | bellard | bswap32s(&e->a_drsize); |
162 | 5fe141fd | bellard | } |
163 | 5fe141fd | bellard | #else
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164 | 5fe141fd | bellard | #define bswap_ahdr(x) do { } while (0) |
165 | 5fe141fd | bellard | #endif
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166 | 5fe141fd | bellard | |
167 | 5fe141fd | bellard | #define N_MAGIC(exec) ((exec).a_info & 0xffff) |
168 | 5fe141fd | bellard | #define OMAGIC 0407 |
169 | 5fe141fd | bellard | #define NMAGIC 0410 |
170 | 5fe141fd | bellard | #define ZMAGIC 0413 |
171 | 5fe141fd | bellard | #define QMAGIC 0314 |
172 | 5fe141fd | bellard | #define _N_HDROFF(x) (1024 - sizeof (struct exec)) |
173 | 5fe141fd | bellard | #define N_TXTOFF(x) \
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174 | 5fe141fd | bellard | (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \ |
175 | 5fe141fd | bellard | (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec))) |
176 | 5fe141fd | bellard | #define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? TARGET_PAGE_SIZE : 0) |
177 | 5fe141fd | bellard | #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
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178 | 5fe141fd | bellard | #define _N_SEGMENT_ROUND(x) (((x) + TARGET_PAGE_SIZE - 1) & ~(TARGET_PAGE_SIZE - 1)) |
179 | 5fe141fd | bellard | |
180 | 5fe141fd | bellard | #define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
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181 | 5fe141fd | bellard | |
182 | 5fe141fd | bellard | #define N_DATADDR(x) \
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183 | 5fe141fd | bellard | (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \ |
184 | 5fe141fd | bellard | : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) |
185 | 5fe141fd | bellard | |
186 | 5fe141fd | bellard | |
187 | 293f78bc | blueswir1 | int load_aout(const char *filename, target_phys_addr_t addr, int max_sz) |
188 | 5fe141fd | bellard | { |
189 | 5fe141fd | bellard | int fd, size, ret;
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190 | 5fe141fd | bellard | struct exec e;
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191 | 5fe141fd | bellard | uint32_t magic; |
192 | 5fe141fd | bellard | |
193 | 5fe141fd | bellard | fd = open(filename, O_RDONLY | O_BINARY); |
194 | 5fe141fd | bellard | if (fd < 0) |
195 | 5fe141fd | bellard | return -1; |
196 | 5fe141fd | bellard | |
197 | 5fe141fd | bellard | size = read(fd, &e, sizeof(e));
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198 | 5fe141fd | bellard | if (size < 0) |
199 | 5fe141fd | bellard | goto fail;
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200 | 5fe141fd | bellard | |
201 | 5fe141fd | bellard | bswap_ahdr(&e); |
202 | 5fe141fd | bellard | |
203 | 5fe141fd | bellard | magic = N_MAGIC(e); |
204 | 5fe141fd | bellard | switch (magic) {
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205 | 5fe141fd | bellard | case ZMAGIC:
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206 | 5fe141fd | bellard | case QMAGIC:
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207 | 5fe141fd | bellard | case OMAGIC:
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208 | 293f78bc | blueswir1 | if (e.a_text + e.a_data > max_sz)
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209 | 293f78bc | blueswir1 | goto fail;
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210 | 5fe141fd | bellard | lseek(fd, N_TXTOFF(e), SEEK_SET); |
211 | 293f78bc | blueswir1 | size = read_targphys(fd, addr, e.a_text + e.a_data); |
212 | 5fe141fd | bellard | if (size < 0) |
213 | 5fe141fd | bellard | goto fail;
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214 | 5fe141fd | bellard | break;
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215 | 5fe141fd | bellard | case NMAGIC:
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216 | 293f78bc | blueswir1 | if (N_DATADDR(e) + e.a_data > max_sz)
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217 | 293f78bc | blueswir1 | goto fail;
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218 | 5fe141fd | bellard | lseek(fd, N_TXTOFF(e), SEEK_SET); |
219 | 293f78bc | blueswir1 | size = read_targphys(fd, addr, e.a_text); |
220 | 5fe141fd | bellard | if (size < 0) |
221 | 5fe141fd | bellard | goto fail;
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222 | 293f78bc | blueswir1 | ret = read_targphys(fd, addr + N_DATADDR(e), e.a_data); |
223 | 5fe141fd | bellard | if (ret < 0) |
224 | 5fe141fd | bellard | goto fail;
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225 | 5fe141fd | bellard | size += ret; |
226 | 5fe141fd | bellard | break;
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227 | 5fe141fd | bellard | default:
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228 | 5fe141fd | bellard | goto fail;
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229 | 5fe141fd | bellard | } |
230 | 5fe141fd | bellard | close(fd); |
231 | 5fe141fd | bellard | return size;
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232 | 5fe141fd | bellard | fail:
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233 | 5fe141fd | bellard | close(fd); |
234 | 5fe141fd | bellard | return -1; |
235 | 5fe141fd | bellard | } |
236 | 5fe141fd | bellard | |
237 | 5fe141fd | bellard | /* ELF loader */
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238 | 5fe141fd | bellard | |
239 | 5fe141fd | bellard | static void *load_at(int fd, int offset, int size) |
240 | 5fe141fd | bellard | { |
241 | 5fe141fd | bellard | void *ptr;
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242 | 5fe141fd | bellard | if (lseek(fd, offset, SEEK_SET) < 0) |
243 | 5fe141fd | bellard | return NULL; |
244 | 5fe141fd | bellard | ptr = qemu_malloc(size); |
245 | 5fe141fd | bellard | if (!ptr)
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246 | 5fe141fd | bellard | return NULL; |
247 | 5fe141fd | bellard | if (read(fd, ptr, size) != size) {
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248 | 5fe141fd | bellard | qemu_free(ptr); |
249 | 5fe141fd | bellard | return NULL; |
250 | 5fe141fd | bellard | } |
251 | 5fe141fd | bellard | return ptr;
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252 | 5fe141fd | bellard | } |
253 | 5fe141fd | bellard | |
254 | 5fe141fd | bellard | |
255 | 5fe141fd | bellard | #define ELF_CLASS ELFCLASS32
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256 | 5fe141fd | bellard | #include "elf.h" |
257 | 5fe141fd | bellard | |
258 | 5fe141fd | bellard | #define SZ 32 |
259 | 5fe141fd | bellard | #define elf_word uint32_t
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260 | 82790064 | ths | #define elf_sword int32_t
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261 | 5fe141fd | bellard | #define bswapSZs bswap32s
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262 | 5fe141fd | bellard | #include "elf_ops.h" |
263 | 5fe141fd | bellard | |
264 | 5fe141fd | bellard | #undef elfhdr
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265 | 5fe141fd | bellard | #undef elf_phdr
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266 | 5fe141fd | bellard | #undef elf_shdr
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267 | 5fe141fd | bellard | #undef elf_sym
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268 | 5fe141fd | bellard | #undef elf_note
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269 | 5fe141fd | bellard | #undef elf_word
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270 | 82790064 | ths | #undef elf_sword
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271 | 5fe141fd | bellard | #undef bswapSZs
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272 | 5fe141fd | bellard | #undef SZ
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273 | 5fe141fd | bellard | #define elfhdr elf64_hdr
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274 | 5fe141fd | bellard | #define elf_phdr elf64_phdr
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275 | 5fe141fd | bellard | #define elf_note elf64_note
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276 | 5fe141fd | bellard | #define elf_shdr elf64_shdr
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277 | 5fe141fd | bellard | #define elf_sym elf64_sym
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278 | 5fe141fd | bellard | #define elf_word uint64_t
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279 | 82790064 | ths | #define elf_sword int64_t
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280 | 5fe141fd | bellard | #define bswapSZs bswap64s
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281 | 5fe141fd | bellard | #define SZ 64 |
282 | 5fe141fd | bellard | #include "elf_ops.h" |
283 | 5fe141fd | bellard | |
284 | 5fe141fd | bellard | /* return < 0 if error, otherwise the number of bytes loaded in memory */
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285 | 9ee3c029 | bellard | int load_elf(const char *filename, int64_t virt_to_phys_addend, |
286 | 74287114 | ths | uint64_t *pentry, uint64_t *lowaddr, uint64_t *highaddr) |
287 | 5fe141fd | bellard | { |
288 | 9042c0e2 | ths | int fd, data_order, host_data_order, must_swab, ret;
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289 | 5fe141fd | bellard | uint8_t e_ident[EI_NIDENT]; |
290 | 5fe141fd | bellard | |
291 | 699e4642 | bellard | fd = open(filename, O_RDONLY | O_BINARY); |
292 | 5fe141fd | bellard | if (fd < 0) { |
293 | 5fe141fd | bellard | perror(filename); |
294 | 5fe141fd | bellard | return -1; |
295 | 5fe141fd | bellard | } |
296 | 5fe141fd | bellard | if (read(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident)) |
297 | 5fe141fd | bellard | goto fail;
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298 | 5fe141fd | bellard | if (e_ident[0] != ELFMAG0 || |
299 | 5fe141fd | bellard | e_ident[1] != ELFMAG1 ||
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300 | 5fe141fd | bellard | e_ident[2] != ELFMAG2 ||
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301 | 5fe141fd | bellard | e_ident[3] != ELFMAG3)
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302 | 5fe141fd | bellard | goto fail;
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303 | 5fe141fd | bellard | #ifdef WORDS_BIGENDIAN
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304 | 5fe141fd | bellard | data_order = ELFDATA2MSB; |
305 | 5fe141fd | bellard | #else
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306 | 5fe141fd | bellard | data_order = ELFDATA2LSB; |
307 | 5fe141fd | bellard | #endif
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308 | 5fe141fd | bellard | must_swab = data_order != e_ident[EI_DATA]; |
309 | 9042c0e2 | ths | |
310 | 9042c0e2 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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311 | 9042c0e2 | ths | host_data_order = ELFDATA2MSB; |
312 | 9042c0e2 | ths | #else
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313 | 9042c0e2 | ths | host_data_order = ELFDATA2LSB; |
314 | 9042c0e2 | ths | #endif
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315 | 9042c0e2 | ths | if (host_data_order != e_ident[EI_DATA])
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316 | 9042c0e2 | ths | return -1; |
317 | 9042c0e2 | ths | |
318 | 5fe141fd | bellard | lseek(fd, 0, SEEK_SET);
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319 | 5fe141fd | bellard | if (e_ident[EI_CLASS] == ELFCLASS64) {
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320 | 74287114 | ths | ret = load_elf64(fd, virt_to_phys_addend, must_swab, pentry, |
321 | 74287114 | ths | lowaddr, highaddr); |
322 | 5fe141fd | bellard | } else {
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323 | 74287114 | ths | ret = load_elf32(fd, virt_to_phys_addend, must_swab, pentry, |
324 | 74287114 | ths | lowaddr, highaddr); |
325 | 5fe141fd | bellard | } |
326 | 5fe141fd | bellard | |
327 | 5fe141fd | bellard | close(fd); |
328 | 5fe141fd | bellard | return ret;
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329 | 5fe141fd | bellard | |
330 | 5fe141fd | bellard | fail:
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331 | 5fe141fd | bellard | close(fd); |
332 | 5fe141fd | bellard | return -1; |
333 | 5fe141fd | bellard | } |
334 | 1c7b3754 | pbrook | |
335 | 1c7b3754 | pbrook | static void bswap_uboot_header(uboot_image_header_t *hdr) |
336 | 1c7b3754 | pbrook | { |
337 | 1c7b3754 | pbrook | #ifndef WORDS_BIGENDIAN
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338 | 1c7b3754 | pbrook | bswap32s(&hdr->ih_magic); |
339 | 1c7b3754 | pbrook | bswap32s(&hdr->ih_hcrc); |
340 | 1c7b3754 | pbrook | bswap32s(&hdr->ih_time); |
341 | 1c7b3754 | pbrook | bswap32s(&hdr->ih_size); |
342 | 1c7b3754 | pbrook | bswap32s(&hdr->ih_load); |
343 | 1c7b3754 | pbrook | bswap32s(&hdr->ih_ep); |
344 | 1c7b3754 | pbrook | bswap32s(&hdr->ih_dcrc); |
345 | 1c7b3754 | pbrook | #endif
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346 | 1c7b3754 | pbrook | } |
347 | 1c7b3754 | pbrook | |
348 | 1c7b3754 | pbrook | /* Load a U-Boot image. */
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349 | 1c7b3754 | pbrook | int load_uboot(const char *filename, target_ulong *ep, int *is_linux) |
350 | 1c7b3754 | pbrook | { |
351 | 3b46e624 | ths | |
352 | 1c7b3754 | pbrook | int fd;
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353 | 1c7b3754 | pbrook | int size;
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354 | 1c7b3754 | pbrook | uboot_image_header_t h; |
355 | 1c7b3754 | pbrook | uboot_image_header_t *hdr = &h; |
356 | 1c7b3754 | pbrook | uint8_t *data = NULL;
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357 | 1c7b3754 | pbrook | |
358 | 1c7b3754 | pbrook | fd = open(filename, O_RDONLY | O_BINARY); |
359 | 1c7b3754 | pbrook | if (fd < 0) |
360 | 1c7b3754 | pbrook | return -1; |
361 | 1c7b3754 | pbrook | |
362 | 1c7b3754 | pbrook | size = read(fd, hdr, sizeof(uboot_image_header_t));
|
363 | 1c7b3754 | pbrook | if (size < 0) |
364 | 1c7b3754 | pbrook | goto fail;
|
365 | 1c7b3754 | pbrook | |
366 | 1c7b3754 | pbrook | bswap_uboot_header(hdr); |
367 | 1c7b3754 | pbrook | |
368 | 1c7b3754 | pbrook | if (hdr->ih_magic != IH_MAGIC)
|
369 | 1c7b3754 | pbrook | goto fail;
|
370 | 1c7b3754 | pbrook | |
371 | 1c7b3754 | pbrook | /* TODO: Implement Multi-File images. */
|
372 | 1c7b3754 | pbrook | if (hdr->ih_type == IH_TYPE_MULTI) {
|
373 | 1c7b3754 | pbrook | fprintf(stderr, "Unable to load multi-file u-boot images\n");
|
374 | 1c7b3754 | pbrook | goto fail;
|
375 | 1c7b3754 | pbrook | } |
376 | 1c7b3754 | pbrook | |
377 | 1c7b3754 | pbrook | /* TODO: Implement compressed images. */
|
378 | 1c7b3754 | pbrook | if (hdr->ih_comp != IH_COMP_NONE) {
|
379 | 1c7b3754 | pbrook | fprintf(stderr, "Unable to load compressed u-boot images\n");
|
380 | 1c7b3754 | pbrook | goto fail;
|
381 | 1c7b3754 | pbrook | } |
382 | 1c7b3754 | pbrook | |
383 | 1c7b3754 | pbrook | /* TODO: Check CPU type. */
|
384 | 1c7b3754 | pbrook | if (is_linux) {
|
385 | 1c7b3754 | pbrook | if (hdr->ih_type == IH_TYPE_KERNEL && hdr->ih_os == IH_OS_LINUX)
|
386 | 1c7b3754 | pbrook | *is_linux = 1;
|
387 | 1c7b3754 | pbrook | else
|
388 | 1c7b3754 | pbrook | *is_linux = 0;
|
389 | 1c7b3754 | pbrook | } |
390 | 1c7b3754 | pbrook | |
391 | 1c7b3754 | pbrook | *ep = hdr->ih_ep; |
392 | 1c7b3754 | pbrook | data = qemu_malloc(hdr->ih_size); |
393 | 1c7b3754 | pbrook | if (!data)
|
394 | 1c7b3754 | pbrook | goto fail;
|
395 | 1c7b3754 | pbrook | |
396 | 1c7b3754 | pbrook | if (read(fd, data, hdr->ih_size) != hdr->ih_size) {
|
397 | 1c7b3754 | pbrook | fprintf(stderr, "Error reading file\n");
|
398 | 1c7b3754 | pbrook | goto fail;
|
399 | 1c7b3754 | pbrook | } |
400 | 1c7b3754 | pbrook | |
401 | 1c7b3754 | pbrook | cpu_physical_memory_write_rom(hdr->ih_load, data, hdr->ih_size); |
402 | 1c7b3754 | pbrook | |
403 | 1c7b3754 | pbrook | return hdr->ih_size;
|
404 | 1c7b3754 | pbrook | |
405 | 1c7b3754 | pbrook | fail:
|
406 | 1c7b3754 | pbrook | if (data)
|
407 | 1c7b3754 | pbrook | qemu_free(data); |
408 | 1c7b3754 | pbrook | close(fd); |
409 | 1c7b3754 | pbrook | return -1; |
410 | 1c7b3754 | pbrook | } |