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patches/eglibc/ports-2_16/003-mips-rld-map-check.patch
author David Holsgrove <david.holsgrove@xilinx.com>
Thu Oct 04 15:59:31 2012 +1000 (2012-10-04)
changeset 3073 a6981147ccc0
permissions -rw-r--r--
scripts/gcc: Canadian Cross skip -print-multi-lib log output

Attempting to ${CT_TARGET}-gcc -print-multi-lib will fail

In do_cc_core_backend, for the final compiler in a canadian cross
baremetal, warn that multi-libs cannot be determined

In do_cc_backend, for either final compiler for a canadian cross,
warn that multi-libs cannot be determined

(Plus fixed CT_PREFIX_DIR in do_cc_backend to be ${prefix})

Signed-off-by: "David Holsgrove" <david.holsgrove@xilinx.com>
Message-Id: <CAM=EW8aQDoNx-CkJHjXBoDP4iTDJ8z5hh3=KhO5UTU6rp3Pj=w@mail.gmail.com>
Patchwork-Id: 189053 
     1 

     2 On mips target, binutils currently sets DT_MIPS_RLD_MAP to 0 in dynamic

     3 section if a --version-script sets _RLD_MAP to local. This is apparently

     4 a binutils bug, but libc shouldn't segfault in this case.

     5 

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

     7 

     8 Upstream-Status: Pending

     9 

    10 9/19/2010 - added by Qing He <qing.he@intel.com>

    11 

    12 

    13 ---

    14 diff -ru glibc-2.10.1.orig/ports/sysdeps/mips/dl-machine.h glibc-2.10.1/sysdeps/mips/dl-machine.h

    15 --- glibc-2.10.1.orig/ports/sysdeps/mips/dl-machine.h	2009-05-16 16:36:20.000000000 +0800

    16 +++ glibc-2.10.1/ports/sysdeps/mips/dl-machine.h	2010-09-19 09:11:53.000000000 +0800

    17 @@ -70,7 +70,8 @@

    18  /* If there is a DT_MIPS_RLD_MAP entry in the dynamic section, fill it in

    19     with the run-time address of the r_debug structure  */

    20  #define ELF_MACHINE_DEBUG_SETUP(l,r) \

    21 -do { if ((l)->l_info[DT_MIPS (RLD_MAP)]) \

    22 +do { if ((l)->l_info[DT_MIPS (RLD_MAP)] && \

    23 +         (l)->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr) \

    24         *(ElfW(Addr) *)((l)->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr) = \

    25         (ElfW(Addr)) (r); \

    26     } while (0)
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