linux-kernel - [PATCH v2 23/25] objtool: Add HAVE_NOINSTR

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Message-Id: <488e94f69db4df154499bc098573d90e5db1c826.1650300597.git.jpoimboe@redhat.com>
Date:   Mon, 18 Apr 2022 09:50:42 -0700
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     x86@...nel.org
Cc:     Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org, Miroslav Benes <mbenes@...e.cz>
Subject: [PATCH v2 23/25] objtool: Add HAVE_NOINSTR_VALIDATION

Remove CONFIG_NOINSTR_VALIDATION's dependency on HAVE_OBJTOOL, since
other arches might want to implement objtool without it.

Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>
---
 arch/Kconfig      | 3 +++
 arch/x86/Kconfig  | 1 +
 lib/Kconfig.debug | 2 +-
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 6ba6e34db0ea..1e19da774e55 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1038,6 +1038,9 @@ config HAVE_JUMP_LABEL_HACK
 config HAVE_NOINSTR_HACK
 	bool
 
+config HAVE_NOINSTR_VALIDATION
+	bool
+
 config HAVE_STACK_VALIDATION
 	bool
 	help
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cc7cca041745..c8f560802bf2 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -233,6 +233,7 @@ config X86
 	select HAVE_MOVE_PUD
 	select HAVE_NOINSTR_HACK		if HAVE_OBJTOOL
 	select HAVE_NMI
+	select HAVE_NOINSTR_VALIDATION		if HAVE_OBJTOOL
 	select HAVE_OBJTOOL			if X86_64
 	select HAVE_OPTPROBES
 	select HAVE_PCSPKR_PLATFORM
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 73359d6cd9a2..55b9acb2f524 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -502,7 +502,7 @@ config STACK_VALIDATION
 
 config NOINSTR_VALIDATION
 	bool
-	depends on HAVE_OBJTOOL && DEBUG_ENTRY
+	depends on HAVE_NOINSTR_VALIDATION && DEBUG_ENTRY
 	select OBJTOOL
 	default y
 
-- 
2.34.1