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bh=d3RYZ3+6vD59qvNSR99INzel292Ot602uZFnHAzYWPk=; b=bnCGCWusKdRx6Mbg8pbxn28hwKfEs9Aq1GB0TPIYy6xo4c6O8jSP622G bG6b+xBRAb++X68RdY9eDXq4pI0T8gOiIYfc8dcDVzymc2OVh6lyU6PZL UVJuqkknQoYAHchg+gst+wqBhBvP12Eu23/aOkPPs2igUesm7/4bjY7Bv loJIdPoK4e/bLiseD7OUS0tUuS9M0grUKBJwV7/7LavVKxMPeWncD+lxm nEjuMFr/95IjqimFTeWFp4ncNg9y/BiEW0VnB9rDh5S+R8gCijzN8kOhD k3HmkQ+r+aambQEJWfCL2dK+/0MPJ5yxjVPKDzjkMQG+vFW5S+MrronAJ g==; X-IronPort-AV: E=McAfee;i="6600,9927,10971"; a="394571887" X-IronPort-AV: E=Sophos;i="6.05,237,1701158400"; d="scan'208";a="394571887" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Feb 2024 03:01:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,237,1701158400"; d="scan'208";a="4639303" Received: from ahunter6-mobl1.ger.corp.intel.com (HELO ahunter-VirtualBox.home\044ger.corp.intel.com) ([10.252.59.118]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Feb 2024 03:01:43 -0800 From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Jiri Olsa , Namhyung Kim , Ian Rogers , Like Xu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Subject: [PATCH 1/2] perf script: Make it possible to see perf's kernel and module memory mappings Date: Fri, 2 Feb 2024 13:01:29 +0200 Message-Id: <20240202110130.3553-2-adrian.hunter@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240202110130.3553-1-adrian.hunter@intel.com> References: <20240202110130.3553-1-adrian.hunter@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789784772522076768 X-GMAIL-MSGID: 1789784772522076768 Dump kmaps if verbose > 2. Example: $ perf script -vvv 2>&1 >/dev/null | grep kvm.intel build id event received for /lib/modules/6.7.2-local/kernel/arch/x86/kvm/kvm-intel.ko: 0691d75e10e72ebbbd45a44c59f6d00a5604badf [20] Map: 0-3a3 4f5d8 [kvm_intel].modinfo Map: 0-5240 5f280 [kvm_intel]__versions Map: 0-30 64 [kvm_intel].note.Linux Map: 0-14 644c0 [kvm_intel].orc_header Map: 0-5297 43680 [kvm_intel].rodata Map: 0-5bee 3b837 [kvm_intel].text.unlikely Map: 0-7e0 41430 [kvm_intel].noinstr.text Map: 0-2080 713c0 [kvm_intel].bss Map: 0-26 705c8 [kvm_intel].data..read_mostly Map: 0-5888 6a4c0 [kvm_intel].data Map: 0-22 70220 [kvm_intel].data.once Map: 0-40 705f0 [kvm_intel].data..percpu Map: 0-1685 41d20 [kvm_intel].init.text Map: 0-4b8 6fd60 [kvm_intel].init.data Map: 0-380 70248 [kvm_intel]__dyndbg Map: 0-8 70218 [kvm_intel].exit.data Map: 0-438 4f980 [kvm_intel]__param Map: 0-5f5 4ca0f [kvm_intel].rodata.str1.1 Map: 0-3657 493b8 [kvm_intel].rodata.str1.8 Map: 0-e0 70640 [kvm_intel].data..ro_after_init Map: 0-500 70ec0 [kvm_intel].gnu.linkonce.this_module Map: ffffffffc13a7000-ffffffffc1421000 a0 /lib/modules/6.7.2-local/kernel/arch/x86/kvm/kvm-intel.ko The example above shows how the module section mappings are all wrong except for the main .text mapping at 0xffffffffc13a7000. Signed-off-by: Adrian Hunter --- tools/perf/builtin-script.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index b1f57401ff23..e764b319ef59 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -3806,6 +3806,16 @@ static int parse_callret_trace(const struct option *opt __maybe_unused, return 0; } +static void dump_kmaps(struct perf_session *session) +{ + int save_verbose = verbose; + + pr_debug("Kernel and module maps:\n"); + verbose = 0; /* Suppress verbose to print a summary only */ + maps__fprintf(machine__kernel_maps(&session->machines.host), stderr); + verbose = save_verbose; +} + int cmd_script(int argc, const char **argv) { bool show_full_info = false; @@ -4366,6 +4376,9 @@ int cmd_script(int argc, const char **argv) flush_scripting(); + if (verbose > 2) + dump_kmaps(session); + out_delete: if (script.ptime_range) { itrace_synth_opts__clear_time_range(&itrace_synth_opts);