+2012-05-10 Samuel Thibault <samuel.thibault@ens-lyon.org>
+
+ * sysdeps/generic/ldsodefs.h [LIBC_STACK_END_NOT_RELRO]
+ (__libc_stack_end): Do not use attribute_relro.
+ * sysdeps/mach/hurd/dl-sysdep.h (LIBC_STACK_END_NOT_RELRO): Define.
+ * sysdeps/mach/hurd/i386/init-first.c (init): Update __libc_stack_end
+ to libthread-provided value.
+ * sysdeps/mach/hurd/dl-sysdep.c (__libc_stack_end): Do not use
+ attribute_relro.
+
2012-05-10 Thomas Schwinge <thomas@schwinge.name>
[BZ #3748]
might use the variable which results in copy relocations on some
platforms. But this does not matter, ld.so can always use the local
copy. */
-extern void *__libc_stack_end attribute_relro;
+extern void *__libc_stack_end
+#ifndef LIBC_STACK_END_NOT_RELRO
+ attribute_relro
+#endif
+ ;
rtld_hidden_proto (__libc_stack_end)
/* Parameters passed to the dynamic linker. */
/* System-specific settings for dynamic linker code. Hurd version.
- Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2002-2012 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
#define RTLD_PRIVATE_ERRNO 0
#ifdef SHARED
-/* _dl_argv cannot be attribute_relro, because the stack-switching
+/* _dl_argv and __libc_stack_end cannot be attribute_relro, because the stack-switching
libc initializer for using cthreads might write into it. */
# define DL_ARGV_NOT_RELRO 1
+# define LIBC_STACK_END_NOT_RELRO 1
#endif
void switch_stacks (void);
+ __libc_stack_end = newsp;
+
/* Copy per-thread variables from that temporary
area onto the new cthread stack. */
memcpy (__hurd_threadvar_location_from_sp (0, newsp),