Merge tag 'perf-core-for-mingo-20160901' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

User visible changes:

- Support generating cross arch probes, i.e. if you specify a vmlinux
  file for different arch than the one in the host machine,

	 $ perf probe --definition function_name args

  will generate the probe definition string needed to append to the
  target machine /sys/kernel/debug/tracing/kprobes_events file, using
  scripting (Masami Hiramatsu).

- Make 'perf probe' skip the function prologue in uprobes if program
  compiled without optimization, using the same strategy as gdb and
  systemtap uses, fixing a bug where:

	$ perf probe -x ./test 'foo i'

  When 'foo(42)' was used on the "./test" executable would produce i=0
  instead of the expected i=42 (Ravi Bangoria)

- Demangle symbols for synthesized @plt entries too (Millian Wolff)

Documentation changes:

- Show default report configuration in 'perf config' example
  and docs (Millian Wolff)

Infrastructure changes:

- Make 'perf test vmlinux' tolerate the symbol aliasing pruning done when
  loading kallsyms and vmlinux (Arnaldo Carvalho de Melo)

- Improve output of 'perf test vmlinux' test, to help identify on the verbose
  output which lines are warning and which are errors (Arnaldo Carvalho de Melo)

- Prep work to stop having to pass symbol_filter_t to lots of functions,
  simplifying symtab loading routines (Arnaldo Carvalho de Melo)

- Honor symbol_conf.allow_aliases when loading kallsyms as well, it was using
  it only when loading vmlinux files (Arnaldo Carvalho de Melo)

- Fixup symbol->end before doing alias pruning when loading symbol tables
  (Arnaldo Carvalho de Melo)

- Fix error handling of lzma kernel module decompression (Shawn Lin)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index a3223aa22213..e0919006fcba 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -680,7 +680,7 @@ static int symbol_filter(struct map *map, struct symbol *sym)
 		return 1;
 
 	if (symbol__is_idle(sym))
-		sym->ignore = true;
+		sym->idle = 1;
 
 	return 0;
 }
@@ -783,7 +783,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
 		}
 	}
 
-	if (al.sym == NULL || !al.sym->ignore) {
+	if (al.sym == NULL || !al.sym->idle) {
 		struct hists *hists = evsel__hists(evsel);
 		struct hist_entry_iter iter = {
 			.evsel		= evsel,
@@ -1324,7 +1324,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
 		callchain_param.order = ORDER_CALLER;
 
-	symbol_conf.priv_size = sizeof(struct annotation);
+	status = symbol__annotation_init();
+	if (status < 0)
+		goto out_delete_evlist;
 
 	symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
 	if (symbol__init(NULL) < 0)