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* sysdeps/generic/ldsodefs.h (rtld_global): Reorder some elements

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to fill in holes
	(rtld_global_ro): Likewise.

2007-06-18  Jakub Jelinek  <jakub@redhat.com>

	* elf/dl-addr.c (_dl_addr): Skip PT_LOAD checking if l_contiguous.
	Move PT_LOAD checking to...
	(_dl_addr_inside_object): ... here, new function.
	* elf/dl-sym.c (do_sym): If not l_contiguous,
	call _dl_addr_inside_object.
	* elf/dl-iteratephdr.c (__dl_iterate_phdr): Likewise.
	* dlfcn/dlinfo.c (dlinfo_doit): Likewise.
	* elf/dl-open.c (dl_open_worker): Likewise.
	(_dl_addr_inside_object): New function if IS_IN_rtld.
	* elf/dl-load.c (_dl_map_object_from_fd): Set l_contiguous if no
	holes are present or are PROT_NONE protected.
	* include/link.h (struct link_map): Add l_contiguous field.
	* sysdeps/generic/ldsodefs.h (_dl_addr_inside_object): New prototype.
This commit is contained in:
Ulrich Drepper
2007-06-19 22:59:48 +00:00
parent ae1ad3aebb
commit 9be09e060f
9 changed files with 93 additions and 41 deletions
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5
elf/dl-load.c
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@@ -1,5 +1,5 @@
/* Map in a shared object's segments from the file.
Copyright (C) 1995-2005, 2006 Free Software Foundation, Inc.
Copyright (C) 1995-2005, 2006, 2007 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
@@ -1223,6 +1223,8 @@ cannot allocate TLS data structures for initial thread");
loadcmds[nloadcmds - 1].mapstart - c->mapend,
PROT_NONE);
l->l_contiguous = 1;
goto postmap;
}
@@ -1242,6 +1244,7 @@ cannot allocate TLS data structures for initial thread");
/* Remember which part of the address space this object uses. */
l->l_map_start = c->mapstart + l->l_addr;
l->l_map_end = l->l_map_start + maplength;
l->l_contiguous = !has_holes;
while (c < &loadcmds[nloadcmds])
{