gdb and binutils branch master updated. 6682d9595ed8d9b9bba5470bfd7fd1ccd378f19a

gdb and binutils branch master updated. 6682d9595ed8d9b9bba5470bfd7fd1ccd378f19a

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6682d9595ed8d9b9bba5470bfd7fd1ccd378f19a

commit 6682d9595ed8d9b9bba5470bfd7fd1ccd378f19a
Author: Andreas Arnez <arnez at linux dot vnet dot ibm dot com>
Date:   Tue Nov 5 18:43:50 2013 +0100

    S390: Fix TDB regset recognition
    
    When checking for the presence of the TDB regset, the current code
    interprets ENODATA from PTRACE_GETREGSET as an indication that the TDB
    regset *could* occur on this system, but the inferior stopped outside
    a transaction.  However, the Linux kernel actually reports ENODATA
    even on systems without the transactional execution facility.  Thus
    the logic is now changed to check the TE field in the HWCAP as well.
    
    This version also checks the existence of the TDB regset -- just to be
    on the safe side when running on TE-enabled hardware with a kernel
    that does not offer the TDB regset for some reason.
    
    gdb/
    	* s390-linux-nat.c (s390_read_description): Consider the TE field
    	in the HWCAP for determining 'have_regset_tdb'.
    
    gdbserver/
    	* linux-s390-low.c (HWCAP_S390_TE): New define.
    	(s390_arch_setup): Consider the TE field in the HWCAP for
    	determining 'have_regset_tdb'.

-----------------------------------------------------------------------

Summary of changes:
 gdb/ChangeLog                  |    5 ++++
 gdb/gdbserver/ChangeLog        |    6 +++++
 gdb/gdbserver/linux-s390-low.c |   48 +++++++++++++++++++++++++---------------
 gdb/s390-linux-nat.c           |    5 ++-
 4 files changed, 44 insertions(+), 20 deletions(-)


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