From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Nick Desaulniers <ndesaulniers@google.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
"Naveen N . Rao" <naveen.n.rao@linux.ibm.com>,
Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
"David S . Miller" <davem@davemloft.net>,
Arnd Bergmann <arnd@arndb.de>,
Nathan Chancellor <nathan@kernel.org>, Tom Rix <trix@redhat.com>,
sparkhuang <huangshaobo6@huawei.com>,
Ard Biesheuvel <ardb@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Linus Walleij <linus.walleij@linaro.org>,
Chen Zhongjin <chenzhongjin@huawei.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
llvm@lists.linux.dev, Naresh Kamboju <naresh.kamboju@linaro.org>,
regressions@lists.linux.dev, lkft-triage@lists.linaro.org,
Linux Kernel Functional Testing <lkft@linaro.org>,
Logan Chien <loganchien@google.com>
Subject: Re: [PATCH v2] ARM: kprobes: move __kretprobe_trampoline to out of line assembler
Date: Tue, 27 Sep 2022 23:35:24 +0100 [thread overview]
Message-ID: <YzN6rH6wOiC8a8sN@shell.armlinux.org.uk> (raw)
In-Reply-To: <20220927222851.37550-1-ndesaulniers@google.com>
On Tue, Sep 27, 2022 at 03:28:51PM -0700, Nick Desaulniers wrote:
> commit 1069c1dd20a3 ("ARM: 9231/1: Recover kretprobes return address for
> EABI stack unwinder")
> tickled a bug in clang's integrated assembler where the .save and .pad
> directives must have corresponding .fnstart directives. The integrated
> assembler is unaware that the compiler will be generating the .fnstart
> directive.
Has it been confirmed that gcc does generate a .fnstart for naked
functions?
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next prev parent reply other threads:[~2022-09-27 22:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-26 13:27 arch/arm/probes/kprobes/core.c:409:30: error: .fnstart must precede .save or .vsave directives Naresh Kamboju
2022-09-26 15:44 ` Nathan Chancellor
2022-09-26 15:46 ` Nathan Chancellor
2022-09-26 17:42 ` Nick Desaulniers
2022-09-26 18:02 ` Russell King (Oracle)
2022-09-26 18:17 ` Nick Desaulniers
2022-09-26 18:37 ` [PATCH] ARM: kprobes: move __kretprobe_trampoline to out of line assembler Nick Desaulniers
2022-09-26 18:42 ` Nick Desaulniers
2022-09-27 22:28 ` [PATCH v2] " Nick Desaulniers
2022-09-27 22:35 ` Russell King (Oracle) [this message]
2022-09-28 16:39 ` Nick Desaulniers
2022-10-05 22:59 ` [PATCH] " Ard Biesheuvel
2022-09-26 16:11 ` arch/arm/probes/kprobes/core.c:409:30: error: .fnstart must precede .save or .vsave directives Russell King (Oracle)
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