diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2002-07-27 22:06:07 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2002-07-27 22:06:07 +0000 |
| commit | 659c2f0673396beeb4facd899032a54711bff499 (patch) | |
| tree | addf87d28512bf790c252835a6f977c6b5b34c98 /gnu/usr.bin | |
| parent | b2710fc8b5b6cf7f609d732331fb132ba95e82bf (diff) | |
ask uvm to map the bss of each .so module non-executable. again, we
cannot do this to the data segments until we know how big the got/plt
zone is... anyone want to track that down?
Diffstat (limited to 'gnu/usr.bin')
| -rw-r--r-- | gnu/usr.bin/ld/rtld/rtld.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/gnu/usr.bin/ld/rtld/rtld.c b/gnu/usr.bin/ld/rtld/rtld.c index 296cf4e8e58..aee02e4ccfa 100644 --- a/gnu/usr.bin/ld/rtld/rtld.c +++ b/gnu/usr.bin/ld/rtld/rtld.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rtld.c,v 1.27 2002/07/19 19:28:12 marc Exp $ */ +/* $OpenBSD: rtld.c,v 1.28 2002/07/27 22:06:06 deraadt Exp $ */ /* $NetBSD: rtld.c,v 1.43 1996/01/14 00:35:17 pk Exp $ */ /* * Copyright (c) 1993 Paul Kranenburg @@ -323,7 +323,7 @@ rtld(int version, struct crt_ldso *crtp, struct _dynamic *dp) /* Set breakpoint for the benefit of debuggers */ if (mprotect(addr, PAGSIZ, - PROT_READ|PROT_WRITE|PROT_EXEC) == -1) { + PROT_READ|PROT_WRITE|PROT_EXEC) == -1) { err(1, "Cannot set breakpoint (%s)", main_progname); } md_set_breakpoint((long)crtp->crt_bp, (long *)&ddp->dd_bpt_shadow); @@ -606,8 +606,8 @@ again: } if ((addr = mmap(0, hdr.a_text + hdr.a_data + hdr.a_bss, - PROT_READ|PROT_EXEC, - MAP_COPY, fd, 0)) == (caddr_t)-1) { + PROT_READ|PROT_EXEC, + MAP_COPY, fd, 0)) == (caddr_t)-1) { (void)close(fd); return NULL; } @@ -623,9 +623,9 @@ again: } if (mmap(addr + hdr.a_text + hdr.a_data, hdr.a_bss, - PROT_READ|PROT_WRITE|PROT_EXEC, - MAP_ANON|MAP_COPY|MAP_FIXED, - anon_fd, 0) == (caddr_t)-1) { + PROT_READ|PROT_WRITE, + MAP_ANON|MAP_COPY|MAP_FIXED, + anon_fd, 0) == (caddr_t)-1) { (void)close(fd); return NULL; } @@ -720,8 +720,8 @@ check_text_reloc(struct relocation_info *r, struct so_map *smp, caddr_t addr) if (smp->som_write == 0 && mprotect(smp->som_addr + LM_TXTADDR(smp), - LD_TEXTSZ(smp->som_dynamic), - PROT_READ|PROT_WRITE|PROT_EXEC) == -1) { + LD_TEXTSZ(smp->som_dynamic), + PROT_READ|PROT_WRITE|PROT_EXEC) == -1) { err(1, "Cannot enable writes to %s:%s", main_progname, smp->som_path); @@ -811,11 +811,10 @@ reloc_map(struct so_map *smp) if (smp->som_write) { if (mprotect(smp->som_addr + LM_TXTADDR(smp), - LD_TEXTSZ(smp->som_dynamic), - PROT_READ|PROT_EXEC) == -1) { - + LD_TEXTSZ(smp->som_dynamic), + PROT_READ|PROT_EXEC) == -1) { err(1, "Cannot disable writes to %s:%s", - main_progname, smp->som_path); + main_progname, smp->som_path); } smp->som_write = 0; } |