• Jiri Olsa's avatar
    perf tools: Add libunwind dependency for DWARF CFI unwinding · 6a40cd90
    Jiri Olsa authored
    Adding libunwind to be linked with perf if available. It's required
    for the to get dwarf cfi unwinding support.
    
    Also building perf with the dwarf call frame informations by default,
    so that we can unwind callchains in perf itself.
    
    Adding LIBUNWIND_DIR Makefile variable allowing user to specify
    the directory with libunwind to be linked. This is used for
    debug purposes.
    Signed-off-by: default avatarJiri Olsa <jolsa@redhat.com>
    Original-patch-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
    Cc: "Frank Ch. Eigler" <fche@redhat.com>
    Cc: Arun Sharma <asharma@fb.com>
    Cc: Benjamin Redelings <benjamin.redelings@nescent.org>
    Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
    Cc: Cyrill Gorcunov <gorcunov@openvz.org>
    Cc: Frank Ch. Eigler <fche@redhat.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Robert Richter <robert.richter@amd.com>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Tom Zanussi <tzanussi@gmail.com>
    Cc: Ulrich Drepper <drepper@gmail.com>
    Link: http://lkml.kernel.org/r/1344345647-11536-10-git-send-email-jolsa@redhat.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    6a40cd90
feature-tests.mak 2.78 KB