diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dl-load.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c index 07ac3597..84951ea 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -864,11 +864,18 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname, { /* There was no PT_PHDR specified. We need to find the phdr in the load image ourselves. We assume it is in fact in the load image - somewhere, and that the first load command starts at the - beginning of the file and thus contains the ELF file header. */ - ElfW(Addr) bof = l->l_addr + loadcmds[0].mapstart; - assert (loadcmds[0].mapoff == 0); - l->l_phdr = (void *) (bof + ((const ElfW(Ehdr) *) bof)->e_phoff); + somewhere. */ + for (c = loadcmds; c < &loadcmds[nloadcmds]; c++) + if (c->mapoff <= header->e_phoff + && (c->mapend - c->mapstart + c->mapoff + >= header->e_phoff + header->e_phnum * sizeof (ElfW(Phdr)))) + { + ElfW(Addr) bof = l->l_addr + c->mapstart; + l->l_phdr = (void *) (bof + header->e_phoff - c->mapoff); + break; + } + if (l->l_phdr == 0) + LOSE ("program headers not contained in any loaded segment"); } else /* Adjust the PT_PHDR value by the runtime load address. */ @@ -948,7 +955,7 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname, /* Now move the existing entries one back. */ memmove (&l->l_scope[1], &l->l_scope[0], - 3 * sizeof (struct r_scope_elem *)); + sizeof (l->l_scope) - sizeof (l->l_scope[0])); /* Now add the new entry. */ l->l_scope[0] = &l->l_symbolic_searchlist; |