43 lines
1.2 KiB
Diff
43 lines
1.2 KiB
Diff
From: Ben Hutchings <ben@decadent.org.uk>
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Date: Wed, 26 Dec 2018 00:00:40 +0000
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Subject: powerpc: Fix -mcpu= options for SPE-only compiler
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Forwarded: https://lists.debian.org/debian-kernel/2018/12/msg00295.html
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GCC for Debian's "powerpcspe" architecture only supports 32-bit
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SPE targets, and using -mcpu=powerpc or -mcpu=powerpc64 is a fatal
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error.
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* Change the test for a biarch compiler to pass both the -m32 and -m64
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options, so that it doesn't catch 32-bit-only compilers
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* Add an ifdef CONFIG_PPC64 around the 64-bit CPU option definitions
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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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---
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--- a/arch/powerpc/Makefile
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+++ b/arch/powerpc/Makefile
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@@ -12,7 +12,7 @@
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# Rewritten by Cort Dougan and Paul Mackerras
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#
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-HAS_BIARCH := $(call cc-option-yn, -m32)
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+HAS_BIARCH := $(call cc-option-yn, -m32 -m64)
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# Set default 32 bits cross compilers for vdso and boot wrapper
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CROSS32_COMPILE ?=
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@@ -155,6 +155,7 @@
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CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-mno-readonly-in-sdata)
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+ifdef CONFIG_PPC64
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ifdef CONFIG_PPC_BOOK3S_64
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ifdef CONFIG_CPU_LITTLE_ENDIAN
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CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power8
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@@ -166,6 +167,7 @@
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else
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CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
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endif
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+endif
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ifdef CONFIG_FUNCTION_TRACER
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CC_FLAGS_FTRACE := -pg
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