From: Masami Hiramatsu <mhiramat@kernel.org>
To: Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
x86@kernel.org, Paul McKenney <paulmck@kernel.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Joel Fernandes <joel@joelfernandes.org>,
Steven Rostedt <rostedt@goodmis.org>,
Alexei Starovoitov <ast@kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Brian Gerst <brgerst@gmail.com>, Juergen Gross <jgross@suse.com>,
Alexandre Chartre <alexandre.chartre@oracle.com>,
Peter Zijlstra <peterz@infradead.org>,
Tom Lendacky <thomas.lendacky@amd.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: [PATCH -tip 0/4] kprobes: Support __kprobes and NOKPROBE_SYMBOL in modules
Date: Thu, 26 Mar 2020 23:49:23 +0900 [thread overview]
Message-ID: <158523416289.24735.10455512519475919061.stgit@devnote2> (raw)
Hi,
Here is a series for adding support of __kprobes attribute
and NOKPROBE_SYMBOL() macro in modules. With this series,
kprobes user can add its handlers and sub-functions to kprobe
blacklist so that other kprobes don't probe it.
Note that user should not use both __kprobes and NOKPROBE_SYMBOL()
to same function. In that case, the function will appear twice
on the blacklist, and that is a waste of memory.
Thomas, it is easy to add ".noinstr.text" support to this series.
as same as __kprobes (.kprobes.text) support in [2/4], we can
add mod->noinstr_text_start and mod->noinstr_text_size and
register it in add_module_kprobe_blacklist().
Thank you,
---
Masami Hiramatsu (4):
kprobes: Lock kprobe_mutex while showing kprobe_blacklist
kprobes: Support __kprobes blacklist in modules
kprobes: Support NOKPROBE_SYMBOL() in modules
samples/kprobes: Add __kprobes and NOKPROBE_SYMBOL() for handlers.
include/linux/module.h | 6 +++
kernel/kprobes.c | 67 ++++++++++++++++++++++++++++++++++-
kernel/module.c | 7 ++++
samples/kprobes/kprobe_example.c | 6 ++-
samples/kprobes/kretprobe_example.c | 2 +
5 files changed, 85 insertions(+), 3 deletions(-)
--
Masami Hiramatsu (Linaro) <mhiramat@kernel.org>
next reply other threads:[~2020-03-26 14:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 14:49 Masami Hiramatsu [this message]
2020-03-26 14:49 ` [PATCH -tip 1/4] kprobes: Lock kprobe_mutex while showing kprobe_blacklist Masami Hiramatsu
2020-03-26 14:49 ` [PATCH -tip 2/4] kprobes: Support __kprobes blacklist in modules Masami Hiramatsu
2020-03-26 14:50 ` [PATCH -tip 3/4] kprobes: Support NOKPROBE_SYMBOL() " Masami Hiramatsu
2020-03-26 14:50 ` [PATCH -tip 4/4] samples/kprobes: Add __kprobes and NOKPROBE_SYMBOL() for handlers Masami Hiramatsu
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