Patchwork powerpc: Update compilation flags with core specific options

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Submitter Udma Catalin-Dan-B32721
Date July 1, 2013, 9:33 a.m.
Message ID <FE751157F0442848A159F3AB4CB1F55B3DBA47@039-SN1MPN1-001.039d.mgd.msft.net>
Download mbox | patch
Permalink /patch/256101/
State Superseded
Headers show

Comments

Udma Catalin-Dan-B32721 - July 1, 2013, 9:33 a.m.
From: Catalin Udma <catalin.udma@freescale.com>

If CONFIG_E500 is enabled, the compilation flags are updated
specifying the target core -mcpu=e5500/e500mc/8540
Also remove -Wa,-me500, being incompatible with -mcpu=e5500/e6500
The assembler option is redundant if the -mcpu= flag is set.
The patch fixes the kernel compilation problem for e5500/e6500
when using gcc option -mcpu=e5500/e6500.

Signed-off-by: Catalin Udma <catalin.udma@freescale.com>
---
 arch/powerpc/Makefile |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)

Patch

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 0624909..82808b5 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -140,6 +140,18 @@  ifeq ($(CONFIG_6xx),y)
 KBUILD_CFLAGS		+= -mcpu=powerpc
 endif
 
+ifeq ($(CONFIG_E500),y)
+ifeq ($(CONFIG_64BIT),y)
+KBUILD_CFLAGS		+= -mcpu=e5500
+else
+ifeq ($(CONFIG_PPC_E500MC),y)
+KBUILD_CFLAGS		+= -mcpu=e500mc
+else
+KBUILD_CFLAGS		+= -mcpu=8540
+endif
+endif
+endif
+
 # Work around a gcc code-gen bug with -fno-omit-frame-pointer.
 ifeq ($(CONFIG_FUNCTION_TRACER),y)
 KBUILD_CFLAGS		+= -mno-sched-epilog
@@ -147,7 +159,6 @@  endif
 
 cpu-as-$(CONFIG_4xx)		+= -Wa,-m405
 cpu-as-$(CONFIG_ALTIVEC)	+= -Wa,-maltivec
-cpu-as-$(CONFIG_E500)		+= -Wa,-me500
 cpu-as-$(CONFIG_E200)		+= -Wa,-me200
 
 KBUILD_AFLAGS += $(cpu-as-y)