f358f322da
* Rebase patches to Buildroot 2021.02-rc3 * Update Buildroot to 2021.02-rc3 * Declare Kernel headers to be Linux version 5.10 (since they are, and new Buildroot knows about 5.10)
54 lines
1.7 KiB
Diff
54 lines
1.7 KiB
Diff
From a0919e3177295f4aaa9006915adcddc31788d809 Mon Sep 17 00:00:00 2001
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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: [PATCH] powerpc: Fix -mcpu= options for SPE-only compiler
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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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[Romain: Patch from Debian repository:
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https://salsa.debian.org/kernel-team/linux/-/blob/buster/debian/patches/bugfix/powerpc/powerpc-fix-mcpu-options-for-spe-only-compiler.patch]
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Signed-off-by: Romain Naour <romain.naour@gmail.com>
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---
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arch/powerpc/Makefile | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
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index 5c8c06215dd4..e3dbea6d7ae0 100644
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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 := $(call cc-option-yn, -m32 -m64)
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# Set default 32 bits cross compilers for vdso and boot wrapper
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CROSS32_COMPILE ?=
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@@ -164,6 +164,7 @@ CFLAGS-$(CONFIG_PPC32) += $(call cc-option, $(MULTIPLEWORD))
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CFLAGS-$(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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@@ -175,6 +176,7 @@ endif
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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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--
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2.17.1
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