From: Andi Kleen <andi@firstfloor.org>
To: acme@kernel.org
Cc: jolsa@kernel.org, mhiramat@kernel.org, adrian.hunter@intel.com,
linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 09/12] perf, tools: Downgrade register mapping message to warning
Date: Mon, 27 Nov 2017 16:23:18 -0800 [thread overview]
Message-ID: <20171128002321.2878-10-andi@firstfloor.org> (raw)
In-Reply-To: <20171128002321.2878-1-andi@firstfloor.org>
From: Andi Kleen <ak@linux.intel.com>
When tracing floating point code it's quite possible that perf
doesn't recognize the register number. Downgrade the warning
for unknown registers to a debug message.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/util/probe-finder.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 137b2fe71838..5fe6466254f9 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -272,8 +272,8 @@ static int convert_variable_location(Dwarf_Die *vr_die, Dwarf_Addr addr,
regs = get_dwarf_regstr(regn, machine);
if (!regs) {
- /* This should be a bug in DWARF or this tool */
- pr_warning("Mapping for the register number %u "
+ /* This can happen with floating point */
+ pr_debug("Mapping for the register number %u "
"missing on this architecture.\n", regn);
return -ENOTSUP;
}
--
2.13.6
next prev parent reply other threads:[~2017-11-28 0:23 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-28 0:23 Implement dwarf variable/type resolving for perf script Andi Kleen
2017-11-28 0:23 ` [PATCH 01/12] perf, tools, pt: Clear instruction for ptwrite samples Andi Kleen
2017-11-28 0:23 ` [PATCH 02/12] perf, tools, script: Print insn/insnlen for non PT sample Andi Kleen
2017-11-28 0:23 ` [PATCH 03/12] perf, tools: Support storing additional data in strlist Andi Kleen
2017-11-28 13:31 ` Masami Hiramatsu
2017-11-28 0:23 ` [PATCH 04/12] perf, tools: Store variable name and register for dwarf variable lists Andi Kleen
2017-11-28 0:23 ` [PATCH 05/12] perf, tools, probe: Print location for resolved variables Andi Kleen
2017-11-29 1:19 ` Masami Hiramatsu
2017-11-28 0:23 ` [PATCH 06/12] perf, tools, probe: Support a quiet argument for debug info open Andi Kleen
2017-11-29 3:14 ` Masami Hiramatsu
2017-11-29 3:39 ` Andi Kleen
2017-11-30 2:36 ` Masami Hiramatsu
2017-11-28 0:23 ` [PATCH 07/12] perf, tools, script: Resolve variable names for registers Andi Kleen
2017-11-28 0:23 ` [PATCH 08/12] perf, tools: Always print probe finder warnings with -v Andi Kleen
2017-11-29 3:16 ` Masami Hiramatsu
2017-11-28 0:23 ` Andi Kleen [this message]
2017-11-29 5:56 ` [PATCH 09/12] perf, tools: Downgrade register mapping message to warning Masami Hiramatsu
2017-11-28 0:23 ` [PATCH 10/12] perf, tools: Add args and gprs shortcut for registers Andi Kleen
2017-11-28 0:23 ` [PATCH 11/12] perf, tools: Print probe warnings for binaries only once per binary Andi Kleen
2017-11-30 2:38 ` Masami Hiramatsu
2017-11-28 0:23 ` [PATCH 12/12] perf, tools, script: Implement dwarf resolving of instructions Andi Kleen
2017-12-01 2:36 ` Masami Hiramatsu
2017-11-28 5:31 ` Implement dwarf variable/type resolving for perf script Masami Hiramatsu
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