patches/eglibc/ports-2_16/003-mips-rld-map-check.patch
author Yann Diorcet <diorcet.yann@gmail.com>
Mon Nov 19 21:45:09 2012 +0100 (2012-11-19)
changeset 3121 5016315d88ba
permissions -rw-r--r--
binutils/binutils: simplify gold dependencies

In preparation of adding a new kernel-type, Yann D. came up
with a change in semantic on binutils/gold availability.

So far, it was architectures' responsibility to declare that
they did support binutils/gold or not. It makes much more sense
that binutils/gold declares its own availability depending on
the current architecture; after all, architectures have no way
to know wether gold supports them, while gold does know it.

Signed-off-by:Yann Diorcet <diorcet.yann@gmail.com>
[yann.morin.1998@free.fr: split up original patch for self-contained changes]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <d3d1d51f399e6d2c1163.1353320546@macbook-smorlat.local>
Patchwork-Id: 199971
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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)