[PATCH v2 08/10] x86/Kconfig: Implement custom CC_CAN_LINK
From: Thomas Weißschuh <hidden>
Date: 2025-10-14 13:05:56
Also in:
linux-kbuild, linux-mips, linux-riscv, linux-s390, lkml, sparclinux
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
The generic CC_CAN_LINK detection does not work for all architectures. To make it clearer how the detection works on x86 create an architecture-specific variant. Signed-off-by: Thomas Weißschuh <redacted> --- arch/x86/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fa3b616af03a2d50eaf5f922bc8cd4e08a284045..a98675cd01c0c27e2a5716fb6d051416ddcc956f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig@@ -73,6 +73,7 @@ config X86 select ARCH_ENABLE_SPLIT_PMD_PTLOCK if (PGTABLE_LEVELS > 2) && (X86_64 || X86_PAE) select ARCH_ENABLE_THP_MIGRATION if X86_64 && TRANSPARENT_HUGEPAGE select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI + select ARCH_HAS_CC_CAN_LINK select ARCH_HAS_CPU_ATTACK_VECTORS if CPU_MITIGATIONS select ARCH_HAS_CACHE_LINE_SIZE select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
@@ -3171,6 +3172,16 @@ config HAVE_ATOMIC_IOMAP def_bool y depends on X86_32 +config ARCH_CC_CAN_LINK + bool + default $(cc_can_link_user,-m64) if 64BIT + default $(cc_can_link_user,-m32) + +config ARCH_USERFLAGS + string + default "-m64" if 64BIT + default "-m32" + source "arch/x86/kvm/Kconfig" source "arch/x86/Kconfig.cpufeatures"
--
2.51.0