Projetos/rpi-buildroot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arch/Config.in.x86: drop knightslanding and knightsmill archs

Browse Source 
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>
This commit is contained in:
Thomas Petazzoni
2024-07-19 22:58:01 +02:00
parent 7fab00ff15
commit 01becc082d
2 changed files with 14 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
arch/Config.in.x86
View File

@@ -379,30 +379,6 @@ config BR2_x86_grandridge
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 @@ config BR2_GCC_TARGET_ARCH
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