[PATCH v2 04/10] riscv: Implement custom CC_CAN_LINK
From: Thomas Weißschuh <hidden>
Date: 2025-10-14 13:05:53
Also in:
linux-kbuild, linux-mips, linux-riscv, linux-s390, lkml, sparclinux
Subsystem:
risc-v architecture, the rest · Maintainers:
Paul Walmsley, Palmer Dabbelt, Albert Ou, Linus Torvalds
The generic CC_CAN_LINK detection relies on -m32/-m64 compiler flags. These are not supported by riscv compilers. Use architecture-specific logic using -mabi instead. Signed-off-by: Thomas Weißschuh <redacted> --- arch/riscv/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 0c6038dc5dfd529e1fe623f6bc2729a388b33fde..1faf6e6ec87d1417b4e3213ad54053439c87e331 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig@@ -25,6 +25,7 @@ config RISCV select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2 select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE select ARCH_HAS_BINFMT_FLAT + select ARCH_HAS_CC_CAN_LINK select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_HAS_DEBUG_VIRTUAL if MMU select ARCH_HAS_DEBUG_VM_PGTABLE
@@ -1335,6 +1336,16 @@ config PORTABLE config ARCH_PROC_KCORE_TEXT def_bool y +config ARCH_CC_CAN_LINK + bool + default $(cc_can_link_user,-mabi=lp64d) if 64BIT + default $(cc_can_link_user,-mabi=ilp32d) + +config ARCH_USERFLAGS + string + default "-mabi=lp64d" if 64BIT + default "-mabi=ilp32d" + menu "Power management options" source "kernel/power/Kconfig"
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2.51.0