gdb and binutils branch master updated. 2d1baf521e08bc390d604aaf1326347cc130ce1f

[palves@sourceware.org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2d1baf521e08bc390d604aaf1326347cc130ce1f

commit 2d1baf521e08bc390d604aaf1326347cc130ce1f
Author: Pedro Alves <palves@redhat.com>
Date:   Mon Apr 14 17:23:55 2014 +0100

    Make sym-file.exp work with remote targets and hosts.
    
    The main issue here is that this test passes the host's absolute path
    to the library to load to the "dlopen"-like routine, which doesn't
    work when either the target or the host are remote, unless a shared
    filesystem has been set up.
    
    Tests that dynamically load a library solve this by dlopen'ing by
    basename, and setting rpath to $ORIGIN.  See gdb_compile.
    
    This test doesn't use dlopen, but instead uses its own simple elf
    loader.  The fix is to pass this loader the library basename, and
    teach it to look up the library by basename in the executable's
    directory as well, i.e., assuming/emulating RPATH=$ORIGIN.
    
    Tested on x86_64 Fedora 17, native and gdbserver.
    
    I looked around in the web to figure out Linux's /proc/self/exe
    equivalents in other ELF OSs.  I think I covered all relevant, but if
    not, I think it'll be simple enough to add more.  (Note the test is
    skipped on non-ELF targets.)
    
    Tested on x86_64 Fedora 17, native and gdbserver.
    
    gdb/testsuite/
    2014-04-15  Pedro Alves  <palves@redhat.com>
    
    	* gdb.base/sym-file-loader.c: Include <limits.h>.
    	(SELF_LINK): New define.
    	(get_origin): New function.
    	(load_shlib): Use it.
    	* gdb.base/sym-file.exp: Don't early return if the target is
    	remote.  Use runto_main, and issue fail is that fails.  Use
    	gdb_load_shlibs.
    	(shlib_name): Delete.
    	(lib_so, lib_syms, lib_dlopen): New globals.  Use them throughout.

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

Summary of changes:
 gdb/testsuite/ChangeLog                  |   12 +++++
 gdb/testsuite/gdb.base/sym-file-loader.c |   70 ++++++++++++++++++++++++++++-
 gdb/testsuite/gdb.base/sym-file.exp      |   50 +++++++++++----------
 3 files changed, 106 insertions(+), 26 deletions(-)


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