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head/sys/arm/arm/machdep_boot.c
| Show First 20 Lines • Show All 346 Lines • ▼ Show 20 Lines | |||||
| /* | /* | ||||
| * Fake up a boot descriptor table | * Fake up a boot descriptor table | ||||
| */ | */ | ||||
| vm_offset_t | vm_offset_t | ||||
| fake_preload_metadata(struct arm_boot_params *abp __unused, void *dtb_ptr, | fake_preload_metadata(struct arm_boot_params *abp __unused, void *dtb_ptr, | ||||
| size_t dtb_size) | size_t dtb_size) | ||||
| { | { | ||||
| #ifdef DDB | |||||
| vm_offset_t zstart = 0, zend = 0; | |||||
| #endif | |||||
| vm_offset_t lastaddr; | vm_offset_t lastaddr; | ||||
| int i = 0; | int i = 0; | ||||
| static uint32_t fake_preload[35]; | static uint32_t fake_preload[35]; | ||||
| lastaddr = (vm_offset_t)&end; | |||||
| fake_preload[i++] = MODINFO_NAME; | fake_preload[i++] = MODINFO_NAME; | ||||
| fake_preload[i++] = strlen("kernel") + 1; | fake_preload[i++] = strlen("kernel") + 1; | ||||
| strcpy((char*)&fake_preload[i++], "kernel"); | strcpy((char*)&fake_preload[i++], "kernel"); | ||||
| i += 1; | i += 1; | ||||
| fake_preload[i++] = MODINFO_TYPE; | fake_preload[i++] = MODINFO_TYPE; | ||||
| fake_preload[i++] = strlen("elf kernel") + 1; | fake_preload[i++] = strlen("elf kernel") + 1; | ||||
| strcpy((char*)&fake_preload[i++], "elf kernel"); | strcpy((char*)&fake_preload[i++], "elf kernel"); | ||||
| i += 2; | i += 2; | ||||
| fake_preload[i++] = MODINFO_ADDR; | fake_preload[i++] = MODINFO_ADDR; | ||||
| fake_preload[i++] = sizeof(vm_offset_t); | fake_preload[i++] = sizeof(vm_offset_t); | ||||
| fake_preload[i++] = KERNVIRTADDR; | fake_preload[i++] = KERNVIRTADDR; | ||||
| fake_preload[i++] = MODINFO_SIZE; | fake_preload[i++] = MODINFO_SIZE; | ||||
| fake_preload[i++] = sizeof(uint32_t); | fake_preload[i++] = sizeof(uint32_t); | ||||
| fake_preload[i++] = (uint32_t)&end - KERNVIRTADDR; | fake_preload[i++] = (uint32_t)&end - KERNVIRTADDR; | ||||
| #ifdef DDB | |||||
| if (*(uint32_t *)KERNVIRTADDR == MAGIC_TRAMP_NUMBER) { | |||||
| fake_preload[i++] = MODINFO_METADATA|MODINFOMD_SSYM; | |||||
| fake_preload[i++] = sizeof(vm_offset_t); | |||||
| fake_preload[i++] = *(uint32_t *)(KERNVIRTADDR + 4); | |||||
| fake_preload[i++] = MODINFO_METADATA|MODINFOMD_ESYM; | |||||
| fake_preload[i++] = sizeof(vm_offset_t); | |||||
| fake_preload[i++] = *(uint32_t *)(KERNVIRTADDR + 8); | |||||
| lastaddr = *(uint32_t *)(KERNVIRTADDR + 8); | |||||
| zend = lastaddr; | |||||
| zstart = *(uint32_t *)(KERNVIRTADDR + 4); | |||||
| db_fetch_ksymtab(zstart, zend); | |||||
| } else | |||||
| #endif | |||||
| lastaddr = (vm_offset_t)&end; | |||||
| if (dtb_ptr != NULL) { | if (dtb_ptr != NULL) { | ||||
| /* Copy DTB to KVA space and insert it into module chain. */ | /* Copy DTB to KVA space and insert it into module chain. */ | ||||
| lastaddr = roundup(lastaddr, sizeof(int)); | lastaddr = roundup(lastaddr, sizeof(int)); | ||||
| fake_preload[i++] = MODINFO_METADATA | MODINFOMD_DTBP; | fake_preload[i++] = MODINFO_METADATA | MODINFOMD_DTBP; | ||||
| fake_preload[i++] = sizeof(uint32_t); | fake_preload[i++] = sizeof(uint32_t); | ||||
| fake_preload[i++] = (uint32_t)lastaddr; | fake_preload[i++] = (uint32_t)lastaddr; | ||||
| memmove((void *)lastaddr, dtb_ptr, dtb_size); | memmove((void *)lastaddr, dtb_ptr, dtb_size); | ||||
| lastaddr += dtb_size; | lastaddr += dtb_size; | ||||
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