linux-kernel - [PATCH] arch/powerpc: Remove support for older GCC and binutils

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Message-ID: <b6b94cba7492c8581e8d5d25b15962e5ad7a37c2.1751366979.git.christophe.leroy@csgroup.eu>
Date: Tue,  1 Jul 2025 12:50:07 +0200
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Naveen N Rao <naveen@...nel.org>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@...roup.eu>,
	linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH] arch/powerpc: Remove support for older GCC and binutils

Commit 118c40b7b503 ("kbuild: require gcc-8 and binutils-2.30") raised
minimum GCC_VERSION and LD_VERSION.

Simplify powerpc build accordingly.

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/Kconfig      | 2 +-
 arch/powerpc/boot/wrapper | 6 +-----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c3e0cc83f120..cd35d90dfb49 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -252,7 +252,7 @@ config PPC
 	select HAVE_FUNCTION_ERROR_INJECTION
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER		if !COMPILE_TEST && (PPC64 || (PPC32 && CC_IS_GCC))
-	select HAVE_GCC_PLUGINS			if GCC_VERSION >= 50200   # plugin support on gcc <= 5.1 is buggy on PPC
+	select HAVE_GCC_PLUGINS
 	select HAVE_GENERIC_VDSO
 	select HAVE_HARDLOCKUP_DETECTOR_ARCH	if PPC_BOOK3S_64 && SMP
 	select HAVE_HARDLOCKUP_DETECTOR_PERF	if PERF_EVENTS && HAVE_PERF_EVENTS_NMI
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 3d8dc822282a..a75baefd1cff 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -226,11 +226,7 @@ ld_is_lld()
 
 # Do not include PT_INTERP segment when linking pie. Non-pie linking
 # just ignores this option.
-LD_VERSION=$(${CROSS}ld --version | ld_version)
-LD_NO_DL_MIN_VERSION=$(echo 2.26 | ld_version)
-if [ "$LD_VERSION" -ge "$LD_NO_DL_MIN_VERSION" ] ; then
-	nodl="--no-dynamic-linker"
-fi
+nodl="--no-dynamic-linker"
 
 # suppress some warnings in recent ld versions
 nowarn="-z noexecstack"
-- 
2.49.0