From: Peter Zijlstra <peterz@infradead.org>
To: Alexander Lobakin <alexandr.lobakin@intel.com>
Cc: linux-hardening@vger.kernel.org, x86@kernel.org,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Kristen Carlson Accardi <kristen@linux.intel.com>,
Kees Cook <keescook@chromium.org>,
Miklos Szeredi <miklos@szeredi.hu>,
Ard Biesheuvel <ardb@kernel.org>, Tony Luck <tony.luck@intel.com>,
Bruce Schlobohm <bruce.schlobohm@intel.com>,
Jessica Yu <jeyu@kernel.org>, kernel test robot <lkp@intel.com>,
Miroslav Benes <mbenes@suse.cz>,
Evgenii Shatokhin <eshatokhin@virtuozzo.com>,
Jonathan Corbet <corbet@lwn.net>,
Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
Nick Desaulniers <ndesaulniers@google.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
Thomas Gleixner <tglx@linutronix.de>,
Will Deacon <will@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Andy Lutomirski <luto@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Nathan Chancellor <nathan@kernel.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Marios Pomonis <pomonis@google.com>,
Sami Tolvanen <samitolvanen@google.com>,
linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org,
linux-arch@vger.kernel.org, live-patching@vger.kernel.org,
llvm@lists.linux.dev, hjl.tools@gmail.com
Subject: Re: [PATCH v8 05/14] x86: conditionally place regular ASM functions into separate sections
Date: Fri, 3 Dec 2021 10:44:10 +0100 [thread overview]
Message-ID: <Yanm6tJ2obi1aKv6@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20211202223214.72888-6-alexandr.lobakin@intel.com>
On Thu, Dec 02, 2021 at 11:32:05PM +0100, Alexander Lobakin wrote:
> Use the newly introduces macros to create unique separate sections
> for (almost) every "regular" ASM function (i.e. for those which
> aren't explicitly put into a specific one).
> There should be no leftovers as input .text will be size-asserted
> in the LD script generated for FG-KASLR.
*groan*...
Please, can't we do something like:
#define SYM_PUSH_SECTION(name) \
.if section == .text \
.push_section .text.##name \
.else \
.push_section .text \
.endif
#define SYM_POP_SECTION() \
.pop_section
and wrap that inside the existing SYM_FUNC_START*() SYM_FUNC_END()
macros.
next prev parent reply other threads:[~2021-12-03 9:44 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-02 22:32 [PATCH v8 00/14] Function Granular KASLR Alexander Lobakin
2021-12-02 22:32 ` [PATCH v8 01/14] x86: Makefile: Add build and config option for CONFIG_FG_KASLR Alexander Lobakin
2021-12-02 22:32 ` [PATCH v8 02/14] x86/tools: Add relative relocs for randomized functions Alexander Lobakin
2021-12-02 22:32 ` [PATCH v8 03/14] x86: Add support for function granular KASLR Alexander Lobakin
2021-12-03 9:18 ` Peter Zijlstra
2021-12-03 13:57 ` Alexander Lobakin
2021-12-03 10:34 ` Peter Zijlstra
2021-12-02 22:32 ` [PATCH v8 04/14] linkage: add macros for putting ASM functions into own sections Alexander Lobakin
2021-12-03 9:31 ` Peter Zijlstra
2021-12-03 14:08 ` Alexander Lobakin
2021-12-02 22:32 ` [PATCH v8 06/14] FG-KASLR: use a scripted approach to handle .text.* sections Alexander Lobakin
2021-12-03 9:54 ` Peter Zijlstra
2021-12-02 22:32 ` [PATCH v8 07/14] kallsyms: Hide layout Alexander Lobakin
2021-12-03 10:00 ` Peter Zijlstra
2021-12-03 10:03 ` Ard Biesheuvel
2021-12-07 5:31 ` Josh Poimboeuf
2021-12-02 22:32 ` [PATCH v8 08/14] livepatch: only match unique symbols when using FG-KASLR Alexander Lobakin
2021-12-03 10:05 ` Peter Zijlstra
2021-12-03 14:14 ` Alexander Lobakin
2021-12-06 6:03 ` Josh Poimboeuf
2021-12-02 22:32 ` [PATCH v8 09/14] x86/boot: allow FG-KASLR to be selected Alexander Lobakin
2021-12-02 22:32 ` [PATCH v8 10/14] arm64/crypto: conditionally place ASM functions into separate sections Alexander Lobakin
2021-12-02 22:32 ` [PATCH v8 11/14] module: Reorder functions Alexander Lobakin
2021-12-03 10:23 ` Peter Zijlstra
2021-12-02 22:32 ` [PATCH v8 12/14] module: use a scripted approach for FG-KASLR Alexander Lobakin
2021-12-02 22:32 ` [PATCH v8 13/14] Documentation: add documentation " Alexander Lobakin
2021-12-02 22:32 ` [PATCH v8 14/14] maintainers: add MAINTAINERS entry " Alexander Lobakin
[not found] ` <20211202223214.72888-6-alexandr.lobakin@intel.com>
2021-12-03 9:44 ` Peter Zijlstra [this message]
2021-12-03 14:10 ` [PATCH v8 05/14] x86: conditionally place regular ASM functions into separate sections Alexander Lobakin
2021-12-03 16:34 ` Peter Zijlstra
2021-12-03 16:51 ` H.J. Lu
2021-12-03 19:46 ` Nicolas Pitre
2021-12-04 8:31 ` Ard Biesheuvel
2021-12-04 8:55 ` Peter Zijlstra
2021-12-10 11:01 ` Alexander Lobakin
2021-12-10 13:20 ` Nicolas Pitre
2021-12-03 10:38 ` [PATCH v8 00/14] Function Granular KASLR Peter Zijlstra
2021-12-03 14:41 ` Alexander Lobakin
2021-12-03 16:32 ` Peter Zijlstra
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