On mips target, binutils currently sets DT_MIPS_RLD_MAP to 0 in dynamic
section if a --version-script sets _RLD_MAP to local. This is apparently
a binutils bug, but libc shouldn't segfault in this case.

see also: http://sourceware.org/bugilla/show_bug.cgi?id=11615

9/19/2010 - added by Qing He <qing.he@intel.com>

Upstream-status: Pending

---
diff -ru glibc-2.10.1.orig/ports/sysdeps/mips/dl-machine.h glibc-2.10.1/ports/sysdeps/mips/dl-machine.h
--- glibc-2.10.1.orig/ports/sysdeps/mips/dl-machine.h	2009-05-16 16:36:20.000000000 +0800
+++ glibc-2.10.1/ports/sysdeps/mips/dl-machine.h	2010-09-19 09:11:53.000000000 +0800
@@ -70,7 +70,8 @@
 /* If there is a DT_MIPS_RLD_MAP entry in the dynamic section, fill it in
    with the run-time address of the r_debug structure  */
 #define ELF_MACHINE_DEBUG_SETUP(l,r) \
-do { if ((l)->l_info[DT_MIPS (RLD_MAP)]) \
+do { if ((l)->l_info[DT_MIPS (RLD_MAP)] && \
+         (l)->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr) \
        *(ElfW(Addr) *)((l)->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr) = \
        (ElfW(Addr)) (r); \
    } while (0)