lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 6 Oct 2021 10:45:41 -0700 From: Sami Tolvanen <samitolvanen@...gle.com> To: Steven Rostedt <rostedt@...dmis.org> Cc: Josh Poimboeuf <jpoimboe@...hat.com>, X86 ML <x86@...nel.org>, Kees Cook <keescook@...omium.org>, Peter Zijlstra <peterz@...radead.org>, Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, Sedat Dilek <sedat.dilek@...il.com>, linux-hardening@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>, llvm@...ts.linux.dev Subject: Re: [PATCH v4 06/15] ftrace: Use an opaque type for functions not callable from C On Wed, Oct 6, 2021 at 9:58 AM Steven Rostedt <rostedt@...dmis.org> wrote: > > On Wed, 6 Oct 2021 09:31:04 -0700 > Sami Tolvanen <samitolvanen@...gle.com> wrote: > > > > > On Thu, Sep 30, 2021 at 11:05:22AM -0700, Sami Tolvanen wrote: > > > > > With CONFIG_CFI_CLANG, the compiler changes function references to point > > > > > to the CFI jump table. As ftrace_call, ftrace_regs_call, and mcount_call > > > > > are not called from C, use DECLARE_ASM_FUNC_SYMBOL to declare them. > > > > > > "not called from C" is a bit confusing. > > > > Any thoughts on how to make this less confusing? > > "Not called by C code, but injected by the compiler." > > ? Sure, sounds good to me. I'll update this in v5. Sami
Powered by blists - more mailing lists