From: Andrew Morton <akpm@linux-foundation.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Steven Rostedt <rostedt@goodmis.org>,
tglx@linutronix.de, Jason Baron <jbaron@redhat.com>,
"Frank Ch. Eigler" <fche@redhat.com>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Jiaying Zhang <jiayingz@google.com>,
Michael Rubin <mrubin@google.com>,
Martin Bligh <mbligh@google.com>,
Michael Davidson <md@google.com>
Subject: Re: [PATCH 2/2 v2] tracing/syscalls: support for syscalls tracing on x86-64
Date: Sat, 14 Mar 2009 20:53:06 -0700 [thread overview]
Message-ID: <20090314205306.cafe25c6.akpm@linux-foundation.org> (raw)
In-Reply-To: <1236955332-10133-3-git-send-email-fweisbec@gmail.com>
On Fri, 13 Mar 2009 15:42:12 +0100 Frederic Weisbecker <fweisbec@gmail.com> wrote:
> +static struct syscall_metadata *find_syscall_meta(unsigned long *syscall)
> +{
> + struct syscall_metadata *start;
> + struct syscall_metadata *stop;
> + char str[KSYM_SYMBOL_LEN];
> +
> +
> + start = (struct syscall_metadata *)__start_syscalls_metadata;
> + stop = (struct syscall_metadata *)__stop_syscalls_metadata;
> + kallsyms_lookup((unsigned long) syscall, NULL, NULL, NULL, str);
> +
> + for ( ; start < stop; start++) {
> + if (start->name && !strcmp(start->name, str))
> + return start;
> + }
> + return NULL;
> +}
afacit this feature can be enabled when CONFIG_KALLSYMS=n. Does that make
sense?
next prev parent reply other threads:[~2009-03-15 4:05 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-13 14:42 [PATCH 0/2 v2] Syscalls tracing Frederic Weisbecker
2009-03-13 14:42 ` [PATCH 1/2 v2] tracing/syscalls: core infrastructure for syscalls tracing Frederic Weisbecker
2009-03-13 16:09 ` [tip:tracing/syscalls] tracing/syscalls: core infrastructure for syscalls tracing, enhancements Frederic Weisbecker
2009-03-15 3:51 ` [PATCH 1/2 v2] tracing/syscalls: core infrastructure for syscalls tracing Andrew Morton
2009-03-15 4:59 ` Ingo Molnar
2009-03-15 8:02 ` Andrew Morton
2009-03-15 16:17 ` Frederic Weisbecker
2009-04-06 21:55 ` Tony Luck
2009-04-06 22:12 ` Frederic Weisbecker
2009-04-07 0:30 ` Steven Rostedt
2009-04-08 18:40 ` [PATCH] tracing/syscalls: use a dedicated file header Frederic Weisbecker
2009-04-08 19:36 ` Luck, Tony
2009-04-08 22:44 ` Steven Rostedt
2009-04-08 22:51 ` Luck, Tony
2009-04-08 23:02 ` Steven Rostedt
2009-04-08 23:08 ` Luck, Tony
2009-04-08 23:32 ` Steven Rostedt
2009-04-08 23:32 ` Joe Perches
2009-04-09 0:15 ` [GIT PULL][PATCH] " Steven Rostedt
2009-04-09 4:36 ` [tip:tracing/urgent] " Frederic Weisbecker
2009-03-13 14:42 ` [PATCH 2/2 v2] tracing/syscalls: support for syscalls tracing on x86-64 Frederic Weisbecker
2009-03-13 16:09 ` [tip:tracing/syscalls] tracing/syscalls: support for syscalls tracing on x86 Frederic Weisbecker
2009-03-15 3:53 ` Andrew Morton [this message]
2009-03-15 5:30 ` [PATCH 2/2 v2] tracing/syscalls: support for syscalls tracing on x86-64 Ingo Molnar
2009-03-15 16:05 ` Frederic Weisbecker
2009-03-13 15:16 ` [PATCH 0/2 v2] Syscalls tracing Frederic Weisbecker
2009-03-13 15:55 ` Ingo Molnar
2009-03-13 16:17 ` Ingo Molnar
2009-03-15 15:25 ` Frederic Weisbecker
2009-03-13 16:47 ` Mathieu Desnoyers
2009-03-15 16:01 ` Frederic Weisbecker
2009-03-23 16:32 ` Mathieu Desnoyers
2009-03-23 19:27 ` Frederic Weisbecker
2009-03-23 19:40 ` Ingo Molnar
2009-03-23 20:37 ` Mathieu Desnoyers
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