patches/eglibc/ports-2_16/003-mips-rld-map-check.patch
author Esben Haabendal <esben.haabendal@prevas.dk>
Wed Sep 26 09:09:23 2012 +0200 (2012-09-26)
changeset 3065 603ccf80c48b
permissions -rw-r--r--
kernel/linux: change m68k/no-mmu linux arch tuple to use -uclinux

GCC requires m68k arch tuples to be *-*-uclinux-* to support Linux on
no-mmu m68k (ColdFire) cpus.

Blackfin arch tuple must be *-*-linux-uclibc for FD_PIC_ELF toolchains,
so we cannot just switch to uclinux for no-mmu Linux toolchains.

Signed-off-by: "Esben Haabendal" <esben@haabendal.dk>
Message-Id: <876271s1ee.fsf@arh128.prevas.dk>
PatchWork-Id: 186976
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On mips target, binutils currently sets DT_MIPS_RLD_MAP to 0 in dynamic
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section if a --version-script sets _RLD_MAP to local. This is apparently
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a binutils bug, but libc shouldn't segfault in this case.
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see also: http://sourceware.org/bugilla/show_bug.cgi?id=11615
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Upstream-Status: Pending
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9/19/2010 - added by Qing He <qing.he@intel.com>
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---
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diff -ru glibc-2.10.1.orig/ports/sysdeps/mips/dl-machine.h glibc-2.10.1/sysdeps/mips/dl-machine.h
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--- glibc-2.10.1.orig/ports/sysdeps/mips/dl-machine.h	2009-05-16 16:36:20.000000000 +0800
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+++ glibc-2.10.1/ports/sysdeps/mips/dl-machine.h	2010-09-19 09:11:53.000000000 +0800
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@@ -70,7 +70,8 @@
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 /* If there is a DT_MIPS_RLD_MAP entry in the dynamic section, fill it in
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    with the run-time address of the r_debug structure  */
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 #define ELF_MACHINE_DEBUG_SETUP(l,r) \
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-do { if ((l)->l_info[DT_MIPS (RLD_MAP)]) \
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+do { if ((l)->l_info[DT_MIPS (RLD_MAP)] && \
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+         (l)->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr) \
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        *(ElfW(Addr) *)((l)->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr) = \
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        (ElfW(Addr)) (r); \
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    } while (0)