lib/glibc
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Update.

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2004-03-26  Ulrich Drepper  <drepper@redhat.com>

	* elf/dl-caller.c: New file.
	* include/caller.h: New file.
	* Makefile (distribute): Add include/caller.h.
	* elf/Makefile (dl-routines): Add dl-caller.
	* elf/dl-load.c (_dl_map_object_from_fd): Record l_text_end.
	* elf/dl-open.c (check_libc_caller): Removed.
	(dl_open_worker): Use __check_caller instead.
	* elf/rtld.c (_rtld_global_ro): Initialize _dl_check_caller.
	(_dl_start_final): Record l_text_end for ld.so map.
	(dl_main): Record l_text_end for main object and vdso.
	* include/link.h (struct link_map): Add l_text_end field.
	* sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Add
	_dl_check_caller field.
	Define enum allowmask.  Add declaration of _dl_check_caller.
	* sysdeps/unix/sysv/linux/dl-execstack.c: Also use __check_caller test.
This commit is contained in:
Ulrich Drepper
2004-03-27 03:40:33 +00:00
parent 17c263876b
commit eec8b6cae5
12 changed files with 159 additions and 79 deletions
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5
elf/dl-load.c
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@@ -1110,7 +1110,7 @@ cannot allocate TLS data structures for initial thread");
unallocated. Then jump into the normal segment-mapping loop to
handle the portion of the segment past the end of the file
mapping. */
__mprotect ((caddr_t) (l->l_addr + c->mapend),
__mprotect ((caddr_t) l->l_text_end,
loadcmds[nloadcmds - 1].allocend - c->mapend,
PROT_NONE);
@@ -1146,6 +1146,9 @@ cannot allocate TLS data structures for initial thread");
goto map_error;
postmap:
if (c->prot & PROT_EXEC)
l->l_text_end = l->l_addr + c->mapend;
if (l->l_phdr == 0
&& (ElfW(Off)) c->mapoff <= header->e_phoff
&& ((size_t) (c->mapend - c->mapstart + c->mapoff)