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UPSTREAM: arm64: Default to building compat vDSO with clang when CONFIG_CC_IS_CLANG

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Rather than force the use of GCC for the compat cross-compiler, instead
extract the target from CROSS_COMPILE_COMPAT and pass it to clang if the
main compiler is clang.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 24ee01a927bfe56c66429ec4b1df6955a814adc8)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 154668398
Change-Id: I66ffadbc63519d9d97557335a4050d8c33233b5b
This commit is contained in:
Will Deacon
2019-10-04 14:08:13 +01:00
committed by Alistair Delva
parent 0ae601f9a3
commit 16df258295
1 changed files with 4 additions and 0 deletions
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4
arch/arm64/Makefile
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@@ -49,7 +49,11 @@ $(warning Detected assembler with broken .inst; disassembly will be unreliable)
endif endif
endif endif
ifeq ($(CONFIG_CC_IS_CLANG), y)
COMPATCC ?= $(CC) --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
else
COMPATCC ?= $(CROSS_COMPILE_COMPAT)gcc COMPATCC ?= $(CROSS_COMPILE_COMPAT)gcc
endif
export COMPATCC export COMPATCC
ifeq ($(CONFIG_GENERIC_COMPAT_VDSO), y) ifeq ($(CONFIG_GENERIC_COMPAT_VDSO), y)