arch/Config.in.x86: drop knightslanding and knightsmill archs
According to the GCC 14.x release notes at
https://gcc.gnu.org/gcc-14/changes.html:
Xeon Phi CPUs support (a.k.a. Knight Landing and Knight Mill) are
marked as deprecated. GCC will emit a warning when using the
-mavx5124fmaps, -mavx5124vnniw, -mavx512er, -mavx512pf,
-mprefetchwt1, -march=knl, -march=knm, -mtune=knl or -mtune=knm
compiler switches. Support will be removed in GCC 15.
Using those architectures already emits warnings, which when treated
as errors cause build failures, such as:
cc1: error: '-march=knm' support will be removed in GCC 15 [-Werror=deprecated]
cc1: all warnings being treated as errors
Therefore, let's drop support for those two architectures, which are
anyway not common at all, especially in the embedded space.
Fixes:
http://autobuild.buildroot.net/results/ce98c41b22212f52bf7b53d84871b8e03409dbca/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
diff --git a/Config.in.legacy b/Config.in.legacy
index da6f243..a746f68 100644
--- a/Config.in.legacy
+++ b/Config.in.legacy
@@ -146,6 +146,20 @@
comment "Legacy options removed in 2024.08"
+config BR2_x86_knightslanding
+ bool "knightslanding x86 architecture support dropped"
+ select BR2_LEGACY
+ help
+ GCC 14.x has marked this architecture as obsolete, and emits
+ a warning causing build failures.
+
+config BR2_x86_knightsmill
+ bool "knightsmill x86 architecture support dropped"
+ select BR2_LEGACY
+ help
+ GCC 14.x has marked this architecture as obsolete, and emits
+ a warning causing build failures.
+
config BR2_PACKAGE_DVB_APPS
bool "dvb-apps package removed"
select BR2_LEGACY
diff --git a/arch/Config.in.x86 b/arch/Config.in.x86
index 93a223b..f9b3213 100644
--- a/arch/Config.in.x86
+++ b/arch/Config.in.x86
@@ -379,30 +379,6 @@
select BR2_X86_CPU_HAS_AVX
select BR2_X86_CPU_HAS_AVX2
select BR2_ARCH_NEEDS_GCC_AT_LEAST_13
-config BR2_x86_knightslanding
- bool "knightslanding"
- select BR2_X86_CPU_HAS_MMX
- select BR2_X86_CPU_HAS_SSE
- select BR2_X86_CPU_HAS_SSE2
- select BR2_X86_CPU_HAS_SSE3
- select BR2_X86_CPU_HAS_SSSE3
- select BR2_X86_CPU_HAS_SSE4
- select BR2_X86_CPU_HAS_SSE42
- select BR2_X86_CPU_HAS_AVX
- select BR2_X86_CPU_HAS_AVX2
- select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
-config BR2_x86_knightsmill
- bool "knightsmill"
- select BR2_X86_CPU_HAS_MMX
- select BR2_X86_CPU_HAS_SSE
- select BR2_X86_CPU_HAS_SSE2
- select BR2_X86_CPU_HAS_SSE3
- select BR2_X86_CPU_HAS_SSSE3
- select BR2_X86_CPU_HAS_SSE4
- select BR2_X86_CPU_HAS_SSE42
- select BR2_X86_CPU_HAS_AVX
- select BR2_X86_CPU_HAS_AVX2
- select BR2_ARCH_NEEDS_GCC_AT_LEAST_8
config BR2_x86_skylake_avx512
bool "skylake-avx512"
select BR2_X86_CPU_HAS_MMX
@@ -791,8 +767,6 @@
default "tremont" if BR2_x86_tremont
default "sierraforest" if BR2_x86_sierraforest
default "grandridge" if BR2_x86_grandridge
- default "knl" if BR2_x86_knightslanding
- default "knm" if BR2_x86_knightsmill
default "skylake-avx512" if BR2_x86_skylake_avx512
default "cannonlake" if BR2_x86_cannonlake
default "icelake-client" if BR2_x86_icelake_client
