| 185,16 → 185,14 |
|---|
| if (ALIGN_UP(entry->p_vaddr, PAGE_SIZE) != entry->p_vaddr) |
| return EE_UNSUPPORTED; |
| |
| /* |
| * Copying the segment out is certainly necessary for segments with p_filesz < p_memsz |
| * because of the effect of .bss-like sections. For security reasons, it looks like a |
| * good idea to copy the segment anyway. |
| */ |
| segment_size = ALIGN_UP(max(entry->p_filesz, entry->p_memsz), PAGE_SIZE); |
| segment = malloc(segment_size, 0); |
| if (entry->p_filesz < entry->p_memsz) |
| if ((entry->p_flags & PF_W)) { |
| /* If writable, copy data (should be COW in the future) */ |
| segment = malloc(segment_size, 0); |
| memsetb((__address) (segment + entry->p_filesz), segment_size - entry->p_filesz, 0); |
| memcpy(segment, (void *) (((__address) elf) + entry->p_offset), entry->p_filesz); |
| memcpy(segment, (void *) (((__address) elf) + entry->p_offset), entry->p_filesz); |
| } else /* Map identically original data */ |
| segment = ((void *) elf) + entry->p_offset; |
| |
| a = as_area_create(as, type, SIZE2FRAMES(entry->p_memsz), entry->p_vaddr); |
| if (!a) |