linux-kernel - [PATCH 2/5] X86-64 should not uniquely require a third ELF package to build.

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Message-ID: <e184ece9-2779-675e-0c84-f0a62413c7fd@landley.net>
Date:   Tue, 21 Feb 2023 14:56:22 -0600
From:   Rob Landley <rob@...dley.net>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH 2/5] X86-64 should not uniquely require a third ELF package to
 build.

x86-64 is the only architecture that can't compile without an extra
ELF library installed on the host. (The kernel already has multiple ELF
parse implementations built-in, so requiring another one is questionable
at best.) You can switch it back on in menuconfig if you want to, this
just stops it being mandatory.

See https://lkml.iu.edu/hypermail/linux/kernel/2110.3/00402.html
and https://lkml.iu.edu/hypermail/linux/kernel/2110.3/00278.html

Signed-off-by: Rob Landley <rob@...dley.net>
---
 arch/x86/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 3604074a878b..b63510d79baf 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -243,7 +243,6 @@ config X86
 	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
 	select HAVE_PERF_EVENTS