linux-kernel - [PATCH v2 2/3] tools/perf: Fix to use dwarf_attr

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Message-Id: <166731051988.2100653.13595339994343449770.stgit@devnote3>
Date:   Tue,  1 Nov 2022 22:48:39 +0900
From:   "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH v2 2/3] tools/perf: Fix to use dwarf_attr_integrate for generic attr accessor

From: Masami Hiramatsu (Google) <mhiramat@...nel.org>

Use dwarf_attr_integrate() instead of dwarf_attr() for generic attribute
acccessor functions, so that it can find the specified attribute from
abstact origin DIE etc.

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>
---
 tools/perf/util/dwarf-aux.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index 406b7bdc851a..216fc3d959e8 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -308,7 +308,7 @@ static int die_get_attr_udata(Dwarf_Die *tp_die, unsigned int attr_name,
 {
 	Dwarf_Attribute attr;
 
-	if (dwarf_attr(tp_die, attr_name, &attr) == NULL ||
+	if (dwarf_attr_integrate(tp_die, attr_name, &attr) == NULL ||
 	    dwarf_formudata(&attr, result) != 0)
 		return -ENOENT;
 
@@ -321,7 +321,7 @@ static int die_get_attr_sdata(Dwarf_Die *tp_die, unsigned int attr_name,
 {
 	Dwarf_Attribute attr;
 
-	if (dwarf_attr(tp_die, attr_name, &attr) == NULL ||
+	if (dwarf_attr_integrate(tp_die, attr_name, &attr) == NULL ||
 	    dwarf_formsdata(&attr, result) != 0)
 		return -ENOENT;