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From: guoren@kernel.org
To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com,
	tglx@linutronix.de, peterz@infradead.org, luto@kernel.org,
	conor.dooley@microchip.com, heiko@sntech.de, jszhang@kernel.org,
	lazyparser@gmail.com, falcon@tinylab.org, chenhuacai@kernel.org,
	apatel@ventanamicro.com, atishp@atishpatra.org,
	palmer@dabbelt.com, paul.walmsley@sifive.com,
	mark.rutland@arm.com, zouyipeng@huawei.com,
	bigeasy@linutronix.de, David.Laight@aculab.com
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	Lai Jiangshan <laijs@linux.alibaba.com>,
	Borislav Petkov <bp@alien8.de>, Miguel Ojeda <ojeda@kernel.org>,
	Kees Cook <keescook@chromium.org>,
	Nick Desaulniers <ndesaulniers@google.com>
Subject: [PATCH V5 04/11] compiler_types.h: Add __noinstr_section() for noinstr
Date: Sun, 18 Sep 2022 11:52:39 -0400	[thread overview]
Message-ID: <20220918155246.1203293-5-guoren@kernel.org> (raw)
In-Reply-To: <20220918155246.1203293-1-guoren@kernel.org>

From: Lai Jiangshan <laijs@linux.alibaba.com>

And it will be extended for C entry code.

Cc: Borislav Petkov <bp@alien8.de>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
---
 include/linux/compiler_types.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index 4f2a819fd60a..e9ce11ea4d8b 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -227,9 +227,11 @@ struct ftrace_likely_data {
 #endif
 
 /* Section for code which can't be instrumented at all */
-#define noinstr								\
-	noinline notrace __attribute((__section__(".noinstr.text")))	\
-	__no_kcsan __no_sanitize_address __no_profile __no_sanitize_coverage
+#define __noinstr_section(section)				\
+	noinline notrace __section(section) __no_profile	\
+	__no_kcsan __no_sanitize_address __no_sanitize_coverage
+
+#define noinstr __noinstr_section(".noinstr.text")
 
 #endif /* __KERNEL__ */
 
-- 
2.36.1


  parent reply	other threads:[~2022-09-18 15:53 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-18 15:52 [PATCH V5 00/11] riscv: Add GENERIC_ENTRY support and related features guoren
2022-09-18 15:52 ` [PATCH V5 01/11] riscv: elf_kexec: Fixup compile warning guoren
2022-09-18 15:52 ` [PATCH V5 02/11] riscv: compat_syscall_table: " guoren
2022-09-18 15:52 ` [PATCH V5 03/11] riscv: ptrace: Remove duplicate operation guoren
2022-09-18 15:52 ` guoren [this message]
2022-09-18 15:52 ` [PATCH V5 05/11] riscv: traps: Add noinstr to prevent instrumentation inserted guoren
2022-09-18 15:52 ` [PATCH V5 06/11] entry: Prevent DEBUG_PREEMPT warning guoren
2022-09-19 11:58   ` Peter Zijlstra
2022-09-20  1:45     ` Guo Ren
2022-09-30 12:27       ` Guo Ren
2022-09-18 15:52 ` [PATCH V5 07/11] riscv: convert to generic entry guoren
2022-09-19 13:34   ` Peter Zijlstra
2022-09-20  6:36     ` Guo Ren
2022-09-20  7:22       ` Peter Zijlstra
2022-09-30 11:28         ` Guo Ren
2022-09-18 15:52 ` [PATCH V5 08/11] riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK guoren
2022-09-19 13:45   ` Peter Zijlstra
2022-09-20  6:08     ` Guo Ren
2022-09-20  7:27       ` Peter Zijlstra
2022-09-20  7:34         ` Peter Zijlstra
2022-09-21  6:16           ` Guo Ren
2022-09-21  8:34   ` Chen Zhongjin
2022-09-21  9:53     ` Guo Ren
2022-09-21 11:56       ` Chen Zhongjin
2022-09-22  1:26         ` Guo Ren
2022-09-18 15:52 ` [PATCH V5 09/11] riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK guoren
2022-09-20  0:11   ` Guo Ren
2022-09-18 15:52 ` [PATCH V5 10/11] riscv: Add config of thread stack size guoren
2022-09-18 15:52 ` [PATCH V5 11/11] riscv: Add support for STACKLEAK gcc plugin guoren

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