From: Dan Li <ashimida.1990@gmail.com>
To: Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
Nick Desaulniers <ndesaulniers@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Sami Tolvanen <samitolvanen@google.com>,
Kees Cook <keescook@chromium.org>,
Nathan Chancellor <nathan@kernel.org>, Tom Rix <trix@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Marco Elver <elver@google.com>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Song Liu <song@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Uros Bizjak <ubizjak@gmail.com>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Juergen Gross <jgross@suse.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Borislav Petkov <bp@suse.de>,
Masami Hiramatsu <mhiramat@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Aaron Tomlin <atomlin@redhat.com>,
Kalesh Singh <kaleshsingh@google.com>,
Yuntao Wang <ytcoode@gmail.com>,
Changbin Du <changbin.du@intel.com>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev,
linux-hardening@vger.kernel.org
Subject: Re: [RFC/RFT] CFI: Add support for gcc CFI in aarch64
Date: Sun, 18 Dec 2022 22:38:09 -0800 [thread overview]
Message-ID: <20221219063809.xgd6jjio4f7j5ysw@ubuntu> (raw)
In-Reply-To: <20221219061758.23321-1-ashimida.1990@gmail.com>
+ Cc: linux-hardening@vger.kernel.org
On 12/18, Dan Li wrote:
> Based on Sami's patch[1], this patch makes the corresponding kernel
> configuration of CFI available when compiling the kernel with the gcc[2].
>
> The code after enabling cfi is as follows:
>
> int (*p)(void);
> int func (int)
> {
> p();
> }
>
> __cfi_func:
> .4byte 0x439d3502
> func:
> ......
> adrp x0, p
> add x0, x0, :lo12:p
> mov w1, 23592
> movk w1, 0x4601, lsl 16
> cmp w0, w1
> beq .L2
> ......
> bl cfi_check_failed
> .L2:
> blr x19
> ret
>
> In the compiler part[4], there are some differences from Sami's
> implementation[3], mainly including:
WARNING: multiple messages have this Message-ID (diff)
From: Dan Li <ashimida.1990@gmail.com>
To: Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
Nick Desaulniers <ndesaulniers@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Sami Tolvanen <samitolvanen@google.com>,
Kees Cook <keescook@chromium.org>,
Nathan Chancellor <nathan@kernel.org>, Tom Rix <trix@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Marco Elver <elver@google.com>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Song Liu <song@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Uros Bizjak <ubizjak@gmail.com>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Juergen Gross <jgross@suse.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Borislav Petkov <bp@suse.de>,
Masami Hiramatsu <mhiramat@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Aaron Tomlin <atomlin@redhat.com>,
Kalesh Singh <kaleshsingh@google.com>,
Yuntao Wang <ytcoode@gmail.com>,
Changbin Du <changbin.du@intel.com>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev,
linux-hardening@vger.kernel.org
Subject: Re: [RFC/RFT] CFI: Add support for gcc CFI in aarch64
Date: Sun, 18 Dec 2022 22:38:09 -0800 [thread overview]
Message-ID: <20221219063809.xgd6jjio4f7j5ysw@ubuntu> (raw)
In-Reply-To: <20221219061758.23321-1-ashimida.1990@gmail.com>
+ Cc: linux-hardening@vger.kernel.org
On 12/18, Dan Li wrote:
> Based on Sami's patch[1], this patch makes the corresponding kernel
> configuration of CFI available when compiling the kernel with the gcc[2].
>
> The code after enabling cfi is as follows:
>
> int (*p)(void);
> int func (int)
> {
> p();
> }
>
> __cfi_func:
> .4byte 0x439d3502
> func:
> ......
> adrp x0, p
> add x0, x0, :lo12:p
> mov w1, 23592
> movk w1, 0x4601, lsl 16
> cmp w0, w1
> beq .L2
> ......
> bl cfi_check_failed
> .L2:
> blr x19
> ret
>
> In the compiler part[4], there are some differences from Sami's
> implementation[3], mainly including:
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-12-19 6:38 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-19 6:17 [RFC/RFT] CFI: Add support for gcc CFI in aarch64 Dan Li
2022-12-19 6:17 ` Dan Li
2022-12-19 6:38 ` Dan Li [this message]
2022-12-19 6:38 ` Dan Li
2022-12-19 10:40 ` Peter Zijlstra
2022-12-19 10:40 ` Peter Zijlstra
2022-12-19 13:32 ` Dan Li
2022-12-19 13:32 ` Dan Li
2022-12-19 15:04 ` Peter Zijlstra
2022-12-19 15:04 ` Peter Zijlstra
2022-12-19 23:38 ` Dan Li
2022-12-19 23:38 ` Dan Li
2023-01-03 8:55 ` Mark Rutland
2023-01-03 8:55 ` Mark Rutland
2023-01-07 3:36 ` Kees Cook
2023-01-07 3:36 ` Kees Cook
2023-01-07 15:42 ` Dan Li
2023-01-07 15:42 ` Dan Li
2023-02-08 19:35 ` Kees Cook
2023-02-08 19:35 ` Kees Cook
2023-02-10 16:14 ` Dan Li
2023-02-10 16:14 ` Dan Li
2023-01-03 8:53 ` Mark Rutland
2023-01-03 8:53 ` Mark Rutland
2023-01-07 15:37 ` Dan Li
2023-01-07 15:37 ` Dan Li
2023-03-25 8:54 ` [RFC/RFT,V2] " Dan Li
2023-03-27 9:30 ` Peter Zijlstra
2023-03-27 22:17 ` Sami Tolvanen
2023-04-05 11:49 ` Dan Li
2023-12-13 8:48 ` Dan Li
[not found] ` <4a84af95-6270-6764-6a40-875ec20fc3e1@lixiang.com>
2023-12-13 14:45 ` Mark Rutland
2023-12-13 19:35 ` Kees Cook
2023-04-05 11:48 ` Dan Li
2023-12-13 8:28 ` [RFC/RFT] " Dan Li
2023-12-13 8:28 ` Dan Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20221219063809.xgd6jjio4f7j5ysw@ubuntu \
--to=ashimida.1990@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=atomlin@redhat.com \
--cc=bp@suse.de \
--cc=catalin.marinas@arm.com \
--cc=changbin.du@intel.com \
--cc=christophe.leroy@csgroup.eu \
--cc=dmitry.torokhov@gmail.com \
--cc=ebiederm@xmission.com \
--cc=elver@google.com \
--cc=frederic@kernel.org \
--cc=jgross@suse.com \
--cc=jpoimboe@kernel.org \
--cc=kaleshsingh@google.com \
--cc=keescook@chromium.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=mark.rutland@arm.com \
--cc=masahiroy@kernel.org \
--cc=mcgrof@kernel.org \
--cc=memxor@gmail.com \
--cc=mhiramat@kernel.org \
--cc=michal.lkml@markovi.net \
--cc=nathan@kernel.org \
--cc=ndesaulniers@google.com \
--cc=paulmck@kernel.org \
--cc=peterz@infradead.org \
--cc=samitolvanen@google.com \
--cc=song@kernel.org \
--cc=trix@redhat.com \
--cc=ubizjak@gmail.com \
--cc=will@kernel.org \
--cc=ytcoode@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.