void init_program(void) { /* Get the value of load-base and use it to determine the correct loader to use */ ucell addr; feval("load-base"); addr = POP(); #ifdef CONFIG_LOADER_AOUT if (is_aout((struct exec *)cell2pointer(addr))) { aout_init_program(); return; } #endif #ifdef CONFIG_LOADER_BOOTCODE if (is_bootcode((char *)cell2pointer(addr))) { bootcode_init_program(); return; } #endif #ifdef CONFIG_LOADER_BOOTINFO if (is_bootinfo((char *)cell2pointer(addr))) { bootinfo_init_program(); return; } #endif #ifdef CONFIG_LOADER_ELF if (is_elf((Elf_ehdr *)cell2pointer(addr))) { elf_init_program(); return; } #endif #ifdef CONFIG_LOADER_FCODE if (is_fcode((unsigned char *)cell2pointer(addr))) { fcode_init_program(); return; } #endif #ifdef CONFIG_LOADER_FORTH if (is_forth((char *)cell2pointer(addr))) { forth_init_program(); return; } #endif #ifdef CONFIG_LOADER_XCOFF if (is_xcoff((COFF_filehdr_t *)cell2pointer(addr))) { xcoff_init_program(); return; } #endif }
int fcode_load(ihandle_t dev) { int retval = -1; uint8_t fcode_header[8]; unsigned long start, size; unsigned int offset; /* Mark the saved-program-state as invalid */ feval("0 state-valid !"); fd = open_ih(dev); if (fd == -1) { goto out; } for (offset = 0; offset < 16 * 512; offset += 512) { seek_io(fd, offset); if (read_io(fd, &fcode_header, sizeof(fcode_header)) != sizeof(fcode_header)) { debug("Can't read FCode header from ihandle " FMT_ucellx "\n", dev); retval = LOADER_NOT_SUPPORT; goto out; } if (is_fcode(fcode_header)) goto found; } debug("Not a bootable FCode image\n"); retval = LOADER_NOT_SUPPORT; goto out; found: size = (fcode_header[4] << 24) | (fcode_header[5] << 16) | (fcode_header[6] << 8) | fcode_header[7]; fword("load-base"); start = POP(); printf("\nLoading FCode image...\n"); seek_io(fd, offset); if ((size_t)read_io(fd, (void *)start, size) != size) { printf("Can't read file (size 0x%lx)\n", size); goto out; } debug("Loaded %lu bytes\n", size); debug("entry point is %#lx\n", start); // Initialise load-state PUSH(size); feval("load-state >ls.file-size !"); feval("fcode load-state >ls.file-type !"); out: close_io(fd); return retval; }