Commit 73cdf24e authored by Hari Bathini's avatar Hari Bathini Committed by Madhavan Srinivasan
Browse files

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: default avatarHari Bathini <hbathini@linux.ibm.com>
Tested-by: default avatarVenkat Rao Bagalkote <venkat88@linux.ibm.com>
Signed-off-by: default avatarMadhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260127084926.34497-2-hbathini@linux.ibm.com
parent 04e707cb

arch/powerpc/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -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