From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933909Ab1KCQAR (ORCPT ); Thu, 3 Nov 2011 12:00:17 -0400 Received: from mx1.redhat.com ([209.132.183.28]:1148 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933689Ab1KCQAO (ORCPT ); Thu, 3 Nov 2011 12:00:14 -0400 Message-ID: <4EB2BA74.5070207@redhat.com> Date: Thu, 03 Nov 2011 10:59:48 -0500 From: David Smith User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0) Gecko/20110927 Thunderbird/7.0 MIME-Version: 1.0 To: Linux Kernel Mailing List CC: Steven Rostedt , Ingo Molnar , Peter Zijlstra Subject: [RFC PATCH v2] Tracepoint: add exec tracepoint Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org New version corrects 2 small problems. Include linux/binfmts.h in trace/events/sched.h to provide definition of 'struct linux_binprm'. To avoid future abi problems, add 'struct task_struct' parameter (like most of the other sched tracepoints have). --- From: David Smith Added general purpose exec tracepoint. The 'bprm' argument gives details of the exec. Signed-off-by: David Smith --- fs/exec.c | 6 +++++- include/trace/events/sched.h | 23 +++++++++++++++++++++++ 2 files changed, 28 insertions(+), 1 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index 25dcbe5..b0f4919 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -61,6 +61,8 @@ #include #include "internal.h" +#include + int core_uses_pid; char core_pattern[CORENAME_MAX_SIZE] = "core"; unsigned int core_pipe_limit; @@ -1401,9 +1403,11 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) */ bprm->recursion_depth = depth; if (retval >= 0) { - if (depth == 0) + if (depth == 0) { + trace_sched_process_exec(current, bprm); ptrace_event(PTRACE_EVENT_EXEC, old_pid); + } put_binfmt(fmt); allow_write_access(bprm->file); if (bprm->file) diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 959ff18..ca8d084 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -6,6 +6,7 @@ #include #include +#include /* * Tracepoint for calling kthread_stop, performed to end a kthread: @@ -276,6 +277,28 @@ TRACE_EVENT(sched_process_fork, ); /* + * Tracepoint for exec: + */ +TRACE_EVENT(sched_process_exec, + + TP_PROTO(struct task_struct *p, struct linux_binprm *bprm), + + TP_ARGS(p, bprm), + + TP_STRUCT__entry( + __string( filename, bprm->filename ) + __field( pid_t, pid ) + ), + + TP_fast_assign( + __assign_str(filename, bprm->filename); + __entry->pid = p->pid; + ), + + TP_printk("filename=%s pid=%d", __get_str(filename), __entry->pid) +); + +/* * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE * adding sched_stat support to SCHED_FIFO/RR would be welcome. */