gdb and binutils branch master updated. f23981e9917c0322223aaa8941bd1ca13d1dcc58

[palves at sourceware dot org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f23981e9917c0322223aaa8941bd1ca13d1dcc58

commit f23981e9917c0322223aaa8941bd1ca13d1dcc58
Author: Pedro Alves <palves@redhat.com>
Date:   Wed Dec 11 09:49:08 2013 +0000

    Eliminate UNSUPPORTED_ERROR.
    
    I have a case that could use an exception for "unsupported feature".
    I found UNSUPPORTED_ERROR, but looking deeper, I think as is, reusing
    it for other things would be fragile.  E.g., if the Python script
    sourced by source_script_from_stream triggers any other missing
    functionality that would result in UNSUPPORTED_ERROR being propagated
    out to source_script_from_stream, that would confuse the error for
    Python not being built into GDB.
    
    This patch thus redoes things a little.  Instead of using an exception
    for the "No Python" scenario, check whether Python is configured in
    before actually trying to source the file.  It adds a new function
    instead of using #ifdef HAVE_PYTHON directly, as that is better at
    avoiding bitrot, as both Python and !Python paths are visible to the
    compiler this way.
    
    Tested on Fedora 17, with and without Python.
    
    gdb/
    2013-12-12  Pedro Alves  <palves@redhat.com>
    
    	* cli/cli-cmds.c (source_script_from_stream) Use have_python
    	instead of catching UNSUPPORTED_ERROR.
    	* exceptions.h (UNSUPPORTED_ERROR): Delete.
    	* python/python.c (source_python_script) [!HAVE_PYTHON]: Internal
    	error if called.
    	* python/python.h (have_python): New static inline function.

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

Summary of changes:
 gdb/ChangeLog       |    9 +++++++++
 gdb/cli/cli-cmds.c  |   26 +++++++-------------------
 gdb/exceptions.h    |    3 ---
 gdb/python/python.c |    5 +++--
 gdb/python/python.h |   13 +++++++++++++
 5 files changed, 32 insertions(+), 24 deletions(-)


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