Commit 28071f51 authored May 24, 2017 by Milian Wolff Committed by Ingo Molnar May 24, 2017

perf report: Always honor callchain order for inlined nodes



So far, the inlined nodes where only reversed when we built perf
against libbfd. If that was not available, the addr2line fallback
code path was missing the inline_list__reverse call.

Now we always add the nodes in the correct order within
inline_list__append. This removes the need to reverse the list
and also ensures that all callers construct the list in the right
order.

Signed-off-by: Milian Wolff <milian.wolff@kdab.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yao Jin <yao.jin@linux.intel.com>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20170524062129.32529-6-namhyung@kernel.org


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 325fbff5

tools/perf/util/srcline.c

+4 −14

Original line number	Diff line number	Diff line
		@@ -56,7 +56,10 @@ static int inline_list__append(char filename, char funcname, int line_nr,
		}
		}

		if (callchain_param.order == ORDER_CALLEE)
		list_add_tail(&ilist->list, &node->val);
		else
		list_add(&ilist->list, &node->val);

		return 0;
		}
		@@ -200,14 +203,6 @@ static void addr2line_cleanup(struct a2l_data *a2l)

		#define MAX_INLINE_NEST 1024

		static void inline_list__reverse(struct inline_node *node)
		{
		struct inline_list ilist, n;

		list_for_each_entry_safe_reverse(ilist, n, &node->val, list)
		list_move_tail(&ilist->list, &node->val);
		}

		static int addr2line(const char *dso_name, u64 addr,
		char *file, unsigned int line, struct dso *dso,
		bool unwind_inlines, struct inline_node *node)
		@@ -250,11 +245,6 @@ static int addr2line(const char *dso_name, u64 addr,
		ret = 1;
		}
		}

		if ((node != NULL) &&
		(callchain_param.order != ORDER_CALLEE)) {
		inline_list__reverse(node);
		}
		}

		if (file) {