[PATCH v2 07/10] MIPS: Implement custom CC_CAN_LINK
From: Thomas Weißschuh <hidden>
Date: 2025-10-14 13:05:55
Also in:
linux-kbuild, linux-mips, linux-riscv, linux-s390, lkml, sparclinux
Subsystem:
mips, the rest · Maintainers:
Thomas Bogendoerfer, Linus Torvalds
The generic CC_CAN_LINK detection does not handle different byte orders. This may lead to userprogs which are not actually runnable on the target kernel. Use architecture-specific logic supporting byte orders instead. Signed-off-by: Thomas Weißschuh <redacted> --- arch/mips/Kconfig | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e8683f58fd3e2a43bf9384e1c3c3e454a8e59861..b4f07558ad395eb9bb626a264a2e00fdfbdb7f72 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig@@ -4,6 +4,7 @@ config MIPS default y select ARCH_32BIT_OFF_T if !64BIT select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT + select ARCH_HAS_CC_CAN_LINK select ARCH_HAS_CPU_CACHE_ALIASING select ARCH_HAS_CPU_FINALIZE_INIT select ARCH_HAS_CURRENT_STACK_POINTER
@@ -3126,6 +3127,20 @@ config CC_HAS_MNO_BRANCH_LIKELY config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH def_bool y if CC_IS_CLANG +config ARCH_CC_CAN_LINK + bool + default $(cc_can_link_user,-m64 -EL) if 64BIT && CPU_LITTLE_ENDIAN + default $(cc_can_link_user,-m64 -EB) if 64BIT && CPU_BIG_ENDIAN + default $(cc_can_link_user,-m32 -EL) if CPU_LITTLE_ENDIAN + default $(cc_can_link_user,-m32 -EB) if CPU_BIG_ENDIAN + +config ARCH_USERFLAGS + string + default "-m64 -EL" if 64BIT && CPU_LITTLE_ENDIAN + default "-m64 -EB" if 64BIT && CPU_BIG_ENDIAN + default "-m32 -EL" if CPU_LITTLE_ENDIAN + default "-m32 -EB" if CPU_BIG_ENDIAN + menu "Power management options" config ARCH_HIBERNATION_POSSIBLE
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2.51.0