| 100,6 → 100,10 |
|---|
| if (header->e_type != ET_EXEC) |
| return EE_UNSUPPORTED; |
| |
| /* Check if the ELF image starts on a page boundary */ |
| if (ALIGN_UP((uintptr_t)header, PAGE_SIZE) != (uintptr_t)header) |
| return EE_UNSUPPORTED; |
| |
| /* Walk through all segment headers and process them. */ |
| for (i = 0; i < header->e_phnum; i++) { |
| elf_segment_header_t *seghdr; |
| 182,6 → 186,8 |
|---|
| as_area_t *a; |
| int flags = 0; |
| mem_backend_data_t backend_data; |
| uintptr_t base; |
| size_t mem_sz; |
| |
| backend_data.elf = elf; |
| backend_data.segment = entry; |
| 201,13 → 207,14 |
|---|
| flags |= AS_AREA_READ; |
| flags |= AS_AREA_CACHEABLE; |
| |
| /* |
| * Check if the virtual address starts on page boundary. |
| /* |
| * Align vaddr down, inserting a little "gap" at the beginning. |
| * Adjust area size, so that its end remains in place. |
| */ |
| if (ALIGN_UP(entry->p_vaddr, PAGE_SIZE) != entry->p_vaddr) |
| return EE_UNSUPPORTED; |
| base = ALIGN_DOWN(entry->p_vaddr, PAGE_SIZE); |
| mem_sz = entry->p_memsz + (entry->p_vaddr - base); |
| |
| a = as_area_create(as, flags, entry->p_memsz, entry->p_vaddr, |
| a = as_area_create(as, flags, mem_sz, base, |
| AS_AREA_ATTR_NONE, &elf_backend, &backend_data); |
| if (!a) |
| return EE_MEMORY; |