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authorLukas Bulwahn <lukas.bulwahn@redhat.com>2025-10-10 11:21:38 +0300
committerAndrew Morton <akpm@linux-foundation.org>2025-11-12 21:00:14 +0300
commitcd4eaccc00d79ab97d9a96f7922558558b13f220 (patch)
tree95a0411aee34c223c9b9aab8b2114c6d98ce4d67
parent02582ac3b7d2decc578bd3cef90db95c57031a42 (diff)
downloadlinux-cd4eaccc00d79ab97d9a96f7922558558b13f220.tar.xz
treewide: drop outdated compiler version remarks in Kconfig help texts
As of writing, Documentation/Changes states the minimal versions of GNU C being 8.1, Clang being 15.0.0 and binutils being 2.30. A few Kconfig help texts are pointing out that specific GCC and Clang versions are needed, but by now, those pointers to versions, such later than 4.0, later than 4.4, or clang later than 5.0, are obsolete and unlikely to be found by users configuring their kernel builds anyway. Drop these outdated remarks in Kconfig help texts referring to older compiler and binutils versions. No functional change. Link: https://lkml.kernel.org/r/20251010082138.185752-1-lukas.bulwahn@redhat.com Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com> Cc: Bill Wendling <morbo@google.com> Cc: Justin Stitt <justinstitt@google.com> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Russel King <linux@armlinux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--arch/Kconfig19
-rw-r--r--arch/arm/Kconfig2
-rw-r--r--lib/Kconfig.debug3
3 files changed, 9 insertions, 15 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 61130b88964b..31220f512b16 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -232,17 +232,14 @@ config HAVE_EFFICIENT_UNALIGNED_ACCESS
config ARCH_USE_BUILTIN_BSWAP
bool
help
- Modern versions of GCC (since 4.4) have builtin functions
- for handling byte-swapping. Using these, instead of the old
- inline assembler that the architecture code provides in the
- __arch_bswapXX() macros, allows the compiler to see what's
- happening and offers more opportunity for optimisation. In
- particular, the compiler will be able to combine the byteswap
- with a nearby load or store and use load-and-swap or
- store-and-swap instructions if the architecture has them. It
- should almost *never* result in code which is worse than the
- hand-coded assembler in <asm/swab.h>. But just in case it
- does, the use of the builtins is optional.
+ GCC and Clang have builtin functions for handling byte-swapping.
+ Using these allows the compiler to see what's happening and
+ offers more opportunity for optimisation. In particular, the
+ compiler will be able to combine the byteswap with a nearby load
+ or store and use load-and-swap or store-and-swap instructions if
+ the architecture has them. It should almost *never* result in code
+ which is worse than the hand-coded assembler in <asm/swab.h>.
+ But just in case it does, the use of the builtins is optional.
Any architecture with load-and-swap or store-and-swap
instructions should set this. And it shouldn't hurt to set it
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4fb985b76e97..ff61891abe53 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1161,8 +1161,6 @@ config AEABI
disambiguate both ABIs and allow for backward compatibility support
(selected with CONFIG_OABI_COMPAT).
- To use this you need GCC version 4.0.0 or later.
-
config OABI_COMPAT
bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
depends on AEABI && !THUMB2_KERNEL
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 3034e294d50d..e89c024dcbdf 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -332,8 +332,7 @@ config DEBUG_INFO_COMPRESSED_ZLIB
depends on $(cc-option,-gz=zlib)
depends on $(ld-option,--compress-debug-sections=zlib)
help
- Compress the debug information using zlib. Requires GCC 5.0+ or Clang
- 5.0+, binutils 2.26+, and zlib.
+ Compress the debug information using zlib.
Users of dpkg-deb via debian/rules may find an increase in
size of their debug .deb packages with this config set, due to the