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| Rev 3561 | Rev 3677 | ||
|---|---|---|---|
| Line 57... | Line 57... | ||
| 57 | #include <as.h> |
57 | #include <as.h> |
| 58 | 58 | ||
| 59 | #include <elf.h> |
59 | #include <elf.h> |
| 60 | #include <elf_load.h> |
60 | #include <elf_load.h> |
| 61 | 61 | ||
| 62 | /** |
- | |
| 63 | * Bias used for loading the dynamic linker. This will be soon replaced |
- | |
| 64 | * by automatic placement. |
- | |
| 65 | */ |
- | |
| 66 | #define RTLD_BIAS 0x80000 |
- | |
| 67 | - | ||
| 68 | /** Pathname of the file that will be loaded */ |
62 | /** Pathname of the file that will be loaded */ |
| 69 | static char *pathname = NULL; |
63 | static char *pathname = NULL; |
| 70 | 64 | ||
| 71 | /** The Program control block */ |
65 | /** The Program control block */ |
| 72 | static pcb_t pcb; |
66 | static pcb_t pcb; |
| Line 227... | Line 221... | ||
| 227 | */ |
221 | */ |
| 228 | static int loader_load(ipc_callid_t rid, ipc_call_t *request) |
222 | static int loader_load(ipc_callid_t rid, ipc_call_t *request) |
| 229 | { |
223 | { |
| 230 | int rc; |
224 | int rc; |
| 231 | 225 | ||
| 232 | // printf("Load program '%s'\n", pathname); |
- | |
| 233 | - | ||
| 234 | rc = elf_load_file(pathname, 0, 0, &prog_info); |
226 | rc = elf_load_file(pathname, 0, 0, &prog_info); |
| 235 | if (rc < 0) { |
227 | if (rc < 0) { |
| 236 | printf("failed to load program\n"); |
228 | printf("Failed to load executable '%s'.\n", pathname); |
| 237 | ipc_answer_0(rid, EINVAL); |
229 | ipc_answer_0(rid, EINVAL); |
| 238 | return 1; |
230 | return 1; |
| 239 | } |
231 | } |
| 240 | 232 | ||
| 241 | // printf("Create PCB\n"); |
- | |
| 242 | elf_create_pcb(&prog_info, &pcb); |
233 | elf_create_pcb(&prog_info, &pcb); |
| 243 | 234 | ||
| 244 | pcb.argc = argc; |
235 | pcb.argc = argc; |
| 245 | pcb.argv = argv; |
236 | pcb.argv = argv; |
| 246 | 237 | ||
| 247 | if (prog_info.interp == NULL) { |
238 | if (prog_info.interp == NULL) { |
| 248 | /* Statically linked program */ |
239 | /* Statically linked program */ |
| 249 | // printf("Run statically linked program\n"); |
- | |
| 250 | // printf("entry point: 0x%lx\n", prog_info.entry); |
- | |
| 251 | is_dyn_linked = false; |
240 | is_dyn_linked = false; |
| 252 | ipc_answer_0(rid, EOK); |
241 | ipc_answer_0(rid, EOK); |
| 253 | return 0; |
242 | return 0; |
| 254 | } |
243 | } |
| 255 | 244 | ||
| 256 | printf("Load dynamic linker '%s'\n", prog_info.interp); |
245 | printf("Load ELF interpreter '%s'\n", prog_info.interp); |
| 257 | rc = elf_load_file(prog_info.interp, RTLD_BIAS, 0, &interp_info); |
246 | rc = elf_load_file(prog_info.interp, 0, 0, &interp_info); |
| 258 | if (rc < 0) { |
247 | if (rc < 0) { |
| 259 | printf("failed to load dynamic linker\n"); |
248 | printf("Failed to load interpreter '%s.'\n", prog_info.interp); |
| 260 | ipc_answer_0(rid, EINVAL); |
249 | ipc_answer_0(rid, EINVAL); |
| 261 | return 1; |
250 | return 1; |
| 262 | } |
251 | } |
| 263 | 252 | ||
| 264 | /* |
- | |
| 265 | * Provide dynamic linker with some useful data |
- | |
| 266 | */ |
- | |
| 267 | pcb.rtld_dynamic = interp_info.dynamic; |
- | |
| 268 | pcb.rtld_bias = RTLD_BIAS; |
- | |
| 269 | - | ||
| 270 | printf("run dynamic linker\n"); |
253 | printf("Run interpreter.\n"); |
| 271 | printf("rtld_dynamic = 0x%lx\n", pcb.rtld_dynamic); |
- | |
| 272 | printf("entry point: 0x%lx\n", interp_info.entry); |
254 | printf("entry point: 0x%lx\n", interp_info.entry); |
| 273 | printf("pcb address: 0x%lx\n", &pcb); |
255 | printf("pcb address: 0x%lx\n", &pcb); |
| 274 | 256 | ||
| 275 | is_dyn_linked = true; |
257 | is_dyn_linked = true; |
| 276 | ipc_answer_0(rid, EOK); |
258 | ipc_answer_0(rid, EOK); |