From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
linux-kernel@vger.kernel.org, David Ahern <dsahern@gmail.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@gmail.com>,
Stephane Eranian <eranian@google.com>
Subject: [PATCH V3 15/25] perf tools: Add Intel PT log
Date: Fri, 24 Apr 2015 22:29:57 +0300 [thread overview]
Message-ID: <1429903807-20559-16-git-send-email-adrian.hunter@intel.com> (raw)
In-Reply-To: <1429903807-20559-1-git-send-email-adrian.hunter@intel.com>
Add a facility to log Intel Processor Trace
decoding. The log is intended for debugging
purposes only.
The log file name is "intel_pt.log" and is
opened in the current directory.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/util/intel-pt-decoder/Build | 2 +-
tools/perf/util/intel-pt-decoder/intel-pt-log.c | 155 ++++++++++++++++++++++++
tools/perf/util/intel-pt-decoder/intel-pt-log.h | 52 ++++++++
3 files changed, 208 insertions(+), 1 deletion(-)
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.c
create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.h
diff --git a/tools/perf/util/intel-pt-decoder/Build b/tools/perf/util/intel-pt-decoder/Build
index b608469..a8cf6df 100644
--- a/tools/perf/util/intel-pt-decoder/Build
+++ b/tools/perf/util/intel-pt-decoder/Build
@@ -1,4 +1,4 @@
-libperf-$(CONFIG_AUXTRACE) += intel-pt-pkt-decoder.o intel-pt-insn-decoder.o
+libperf-$(CONFIG_AUXTRACE) += intel-pt-pkt-decoder.o intel-pt-insn-decoder.o intel-pt-log.o
inat_tables_script = ../../arch/x86/tools/gen-insn-attr-x86.awk
inat_tables_maps = ../../arch/x86/lib/x86-opcode-map.txt
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-log.c b/tools/perf/util/intel-pt-decoder/intel-pt-log.c
new file mode 100644
index 0000000..d09c7d9
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-log.c
@@ -0,0 +1,155 @@
+/*
+ * intel_pt_log.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "intel-pt-log.h"
+#include "intel-pt-insn-decoder.h"
+
+#include "intel-pt-pkt-decoder.h"
+
+#define MAX_LOG_NAME 256
+
+static FILE *f;
+static char log_name[MAX_LOG_NAME];
+static bool enable_logging;
+
+void intel_pt_log_enable(void)
+{
+ enable_logging = true;
+}
+
+void intel_pt_log_disable(void)
+{
+ if (f)
+ fflush(f);
+ enable_logging = false;
+}
+
+void intel_pt_log_set_name(const char *name)
+{
+ strncpy(log_name, name, MAX_LOG_NAME - 5);
+ strcat(log_name, ".log");
+}
+
+static void intel_pt_print_data(const unsigned char *buf, int len, uint64_t pos,
+ int indent)
+{
+ int i;
+
+ for (i = 0; i < indent; i++)
+ fprintf(f, " ");
+
+ fprintf(f, " %08" PRIx64 ": ", pos);
+ for (i = 0; i < len; i++)
+ fprintf(f, " %02x", buf[i]);
+ for (; i < 16; i++)
+ fprintf(f, " ");
+ fprintf(f, " ");
+}
+
+static void intel_pt_print_no_data(uint64_t pos, int indent)
+{
+ int i;
+
+ for (i = 0; i < indent; i++)
+ fprintf(f, " ");
+
+ fprintf(f, " %08" PRIx64 ": ", pos);
+ for (i = 0; i < 16; i++)
+ fprintf(f, " ");
+ fprintf(f, " ");
+}
+
+static int intel_pt_log_open(void)
+{
+ if (!enable_logging)
+ return -1;
+
+ if (f)
+ return 0;
+
+ if (!log_name[0])
+ return -1;
+
+ f = fopen(log_name, "w+");
+ if (!f) {
+ enable_logging = false;
+ return -1;
+ }
+
+ return 0;
+}
+
+void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len,
+ uint64_t pos, const unsigned char *buf)
+{
+ char desc[INTEL_PT_PKT_DESC_MAX];
+
+ if (intel_pt_log_open())
+ return;
+
+ intel_pt_print_data(buf, pkt_len, pos, 0);
+ intel_pt_pkt_desc(packet, desc, INTEL_PT_PKT_DESC_MAX);
+ fprintf(f, "%s\n", desc);
+}
+
+void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip)
+{
+ char desc[INTEL_PT_INSN_DESC_MAX];
+ size_t len = intel_pt_insn->length;
+
+ if (intel_pt_log_open())
+ return;
+
+ if (len > INTEL_PT_INSN_DBG_BUF_SZ)
+ len = INTEL_PT_INSN_DBG_BUF_SZ;
+ intel_pt_print_data(intel_pt_insn->buf, len, ip, 8);
+ if (intel_pt_insn_desc(intel_pt_insn, desc, INTEL_PT_INSN_DESC_MAX) > 0)
+ fprintf(f, "%s\n", desc);
+ else
+ fprintf(f, "Bad instruction!\n");
+}
+
+void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn, uint64_t ip)
+{
+ char desc[INTEL_PT_INSN_DESC_MAX];
+
+ if (intel_pt_log_open())
+ return;
+
+ intel_pt_print_no_data(ip, 8);
+ if (intel_pt_insn_desc(intel_pt_insn, desc, INTEL_PT_INSN_DESC_MAX) > 0)
+ fprintf(f, "%s\n", desc);
+ else
+ fprintf(f, "Bad instruction!\n");
+}
+
+void intel_pt_log(const char *fmt, ...)
+{
+ va_list args;
+
+ if (intel_pt_log_open())
+ return;
+
+ va_start(args, fmt);
+ vfprintf(f, fmt, args);
+ va_end(args);
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-log.h b/tools/perf/util/intel-pt-decoder/intel-pt-log.h
new file mode 100644
index 0000000..db3942f
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-log.h
@@ -0,0 +1,52 @@
+/*
+ * intel_pt_log.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_LOG_H__
+#define INCLUDE__INTEL_PT_LOG_H__
+
+#include <stdint.h>
+#include <inttypes.h>
+
+struct intel_pt_pkt;
+
+void intel_pt_log_enable(void);
+void intel_pt_log_disable(void);
+void intel_pt_log_set_name(const char *name);
+
+void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len,
+ uint64_t pos, const unsigned char *buf);
+
+struct intel_pt_insn;
+
+void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip);
+void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn,
+ uint64_t ip);
+
+__attribute__((format(printf, 1, 2)))
+void intel_pt_log(const char *fmt, ...);
+
+#define x64_fmt "0x%" PRIx64
+
+static inline void intel_pt_log_at(const char *msg, uint64_t u)
+{
+ intel_pt_log("%s at " x64_fmt "\n", msg, u);
+}
+
+static inline void intel_pt_log_to(const char *msg, uint64_t u)
+{
+ intel_pt_log("%s to " x64_fmt "\n", msg, u);
+}
+
+#endif
--
1.9.1
next prev parent reply other threads:[~2015-04-24 19:33 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-24 19:29 [PATCH V3 00/25] perf tools: Introduce an abstraction for AUX Area and Instruction Tracing Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 01/25] perf tools: Amend mmap ref counting for the AUX area mmap Adrian Hunter
2015-05-06 3:11 ` [tip:perf/core] perf evlist: " tip-bot for Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 02/25] perf script: Always allow fields 'addr' and 'cpu' for auxtrace Adrian Hunter
2015-05-06 3:12 ` [tip:perf/core] " tip-bot for Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 03/25] perf report: Add Instruction Tracing support Adrian Hunter
2015-05-06 3:12 ` [tip:perf/core] " tip-bot for Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 04/25] perf tools: Add AUX area tracing index Adrian Hunter
2015-04-28 12:07 ` Jiri Olsa
2015-04-29 11:26 ` Adrian Hunter
2015-04-28 12:32 ` Jiri Olsa
2015-04-29 12:11 ` Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 05/25] perf tools: Hit all build ids when AUX area tracing Adrian Hunter
2015-04-28 12:45 ` Jiri Olsa
2015-04-29 12:24 ` Adrian Hunter
2015-04-29 15:26 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 06/25] perf tools: Add build option NO_AUXTRACE to exclude " Adrian Hunter
2015-04-28 12:59 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 07/25] perf auxtrace: Add option to synthesize events for transactions Adrian Hunter
2015-04-28 13:02 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 08/25] perf tools: Add support for PERF_RECORD_AUX Adrian Hunter
2015-04-28 13:09 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 09/25] perf tools: Add support for PERF_RECORD_ITRACE_START Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 10/25] perf tools: Add AUX area tracing Snapshot Mode Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 11/25] perf record: Add AUX area tracing Snapshot Mode support Adrian Hunter
2015-04-28 13:24 ` Jiri Olsa
2015-04-29 13:14 ` Adrian Hunter
2015-04-29 15:23 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 12/25] perf auxtrace: Add Intel PT as an AUX area tracing type Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 13/25] perf tools: Add Intel PT packet decoder Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 14/25] perf tools: Add Intel PT instruction decoder Adrian Hunter
2015-04-24 19:29 ` Adrian Hunter [this message]
2015-04-24 19:29 ` [PATCH V3 16/25] perf tools: Add Intel PT decoder Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 17/25] perf tools: Add Intel PT support Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 18/25] perf tools: Take Intel PT into use Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 19/25] perf tools: Allow auxtrace data alignment Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 20/25] perf tools: Add Intel BTS support Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 21/25] perf tools: Output sample flags and insn_len from intel_pt Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 22/25] perf tools: Output sample flags and insn_len from intel_bts Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 23/25] perf tools: Intel PT to always update thread stack trace number Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 24/25] perf tools: Intel BTS " Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 25/25] perf tools: Add example call-graph script Adrian Hunter
2015-04-24 20:33 ` [PATCH V3 00/25] perf tools: Introduce an abstraction for AUX Area and Instruction Tracing Arnaldo Carvalho de Melo
2015-04-28 14:33 ` Arnaldo Carvalho de Melo
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