diff options
Diffstat (limited to 'elf/dl-reloc.c')
| -rw-r--r-- | elf/dl-reloc.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c index 35ef88ab71..be860af940 100644 --- a/elf/dl-reloc.c +++ b/elf/dl-reloc.c @@ -1,5 +1,5 @@ /* Relocate a shared object and resolve its references to other loaded objects. - Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -108,11 +108,21 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[], caddr_t mapend = ((caddr_t) l->l_addr + ((ph->p_vaddr + ph->p_memsz + _dl_pagesize - 1) & ~(_dl_pagesize - 1))); - int prot = 0; - if (ph->p_flags & PF_R) - prot |= PROT_READ; - if (ph->p_flags & PF_X) - prot |= PROT_EXEC; + extern unsigned char _dl_pf_to_prot[8]; + int prot; + + if ((PF_R | PF_W | PF_X) == 7 + && (PROT_READ | PROT_WRITE | PROT_EXEC) == 7) + prot = _dl_pf_to_prot[ph->p_flags & (PF_R | PF_X)]; + else + { + prot = 0; + if (ph->p_flags & PF_R) + prot |= PROT_READ; + if (ph->p_flags & PF_X) + prot |= PROT_EXEC; + } + if (__mprotect (mapstart, mapend - mapstart, prot) < 0) _dl_signal_error (errno, l->l_name, "can't restore segment prot after reloc"); |