From 6c6320090733ae6e5edb2e9db7508b454984f11a Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 21 Apr 2005 21:49:23 +0000 Subject: * elf/dl-load.c (_dl_map_object_from_fd): Don't use MAP_DENYWRITE, since Linux ignores it in user mmap calls. --- elf/dl-load.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'elf') diff --git a/elf/dl-load.c b/elf/dl-load.c index d8b3a56..0d3fbb4 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -55,12 +55,6 @@ # define MAP_COPY MAP_PRIVATE #endif -/* We want to prevent people from modifying DSOs which are currently in - use. This is what MAP_DENYWRITE is for. */ -#ifndef MAP_DENYWRITE -# define MAP_DENYWRITE 0 -#endif - /* Some systems link their relocatable objects for another base address than 0. We want to know the base address for these such that we can subtract this address from the segment addresses during mapping. @@ -1181,7 +1175,7 @@ cannot allocate TLS data structures for initial thread"); /* Remember which part of the address space this object uses. */ l->l_map_start = (ElfW(Addr)) __mmap ((void *) mappref, maplength, c->prot, - MAP_COPY|MAP_FILE|MAP_DENYWRITE, + MAP_COPY | MAP_FILE, fd, c->mapoff); if (__builtin_expect ((void *) l->l_map_start == MAP_FAILED, 0)) { -- cgit v1.1