From 73cdf24e81e4eba52a40a6b10c6cf285d0ac23fd Mon Sep 17 00:00:00 2001 From: Hari Bathini Date: Tue, 27 Jan 2026 14:19:24 +0530 Subject: [PATCH] powerpc64: make clang cross-build friendly ARCH_USING_PATCHABLE_FUNCTION_ENTRY depends on toolchain support for -fpatchable-function-entry option. The current script that checks for this support only handles GCC. Rename the script and extend it to detect support for -fpatchable-function-entry with Clang as well, allowing clean cross-compilation with Clang toolchains. Signed-off-by: Hari Bathini Tested-by: Venkat Rao Bagalkote Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20260127084926.34497-2-hbathini@linux.ibm.com --- arch/powerpc/Kconfig | 4 ++-- ...e-function-entry.sh => check-fpatchable-function-entry.sh} | 0 2 files changed, 2 insertions(+), 2 deletions(-) rename arch/powerpc/tools/{gcc-check-fpatchable-function-entry.sh => check-fpatchable-function-entry.sh} (100%) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index ad7a2fe63a2a4..10240cb809043 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -573,8 +573,8 @@ config ARCH_USING_PATCHABLE_FUNCTION_ENTRY depends on FUNCTION_TRACER && (PPC32 || PPC64_ELF_ABI_V2) depends on $(cc-option,-fpatchable-function-entry=2) def_bool y if PPC32 - def_bool $(success,$(srctree)/arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh $(CC) -mlittle-endian) if PPC64 && CPU_LITTLE_ENDIAN - def_bool $(success,$(srctree)/arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh $(CC) -mbig-endian) if PPC64 && CPU_BIG_ENDIAN + def_bool $(success,$(srctree)/arch/powerpc/tools/check-fpatchable-function-entry.sh $(CC) $(CLANG_FLAGS) -mlittle-endian) if PPC64 && CPU_LITTLE_ENDIAN + def_bool $(success,$(srctree)/arch/powerpc/tools/check-fpatchable-function-entry.sh $(CC) -mbig-endian) if PPC64 && CPU_BIG_ENDIAN config PPC_FTRACE_OUT_OF_LINE def_bool PPC64 && ARCH_USING_PATCHABLE_FUNCTION_ENTRY diff --git a/arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh b/arch/powerpc/tools/check-fpatchable-function-entry.sh similarity index 100% rename from arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh rename to arch/powerpc/tools/check-fpatchable-function-entry.sh -- 2.47.3