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OMAP4: enable smc instruction in new assembler versions

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New assemblers need -march=armv7-a+sec on command line or
.arch_extension sec inline to enable use of the smc instruction.

This patch uses as-instr to check the latter to conditionally
enable the former in AFLAGS for files that use smc.

Checked on both old and new binutils to verify that it does
not break old versions.

Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
John Rigby 2010-12-01 05:57:51 +00:00 committed by Tony Lindgren
parent 1a6b59232b
commit fe297dde5a
1 changed files with 3 additions and 2 deletions
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5
arch/arm/mach-omap2/Makefile
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@ -26,8 +26,9 @@ obj-$(CONFIG_LOCAL_TIMERS) += timer-mpu.o
obj-$(CONFIG_HOTPLUG_CPU) += omap-hotplug.o obj-$(CONFIG_HOTPLUG_CPU) += omap-hotplug.o
obj-$(CONFIG_ARCH_OMAP4) += omap44xx-smc.o omap4-common.o obj-$(CONFIG_ARCH_OMAP4) += omap44xx-smc.o omap4-common.o
AFLAGS_omap-headsmp.o :=-Wa,-march=armv7-a plus_sec := $(call as-instr,.arch_extension sec,+sec)
AFLAGS_omap44xx-smc.o :=-Wa,-march=armv7-a AFLAGS_omap-headsmp.o :=-Wa,-march=armv7-a$(plus_sec)
AFLAGS_omap44xx-smc.o :=-Wa,-march=armv7-a$(plus_sec)
# Functions loaded to SRAM # Functions loaded to SRAM
obj-$(CONFIG_ARCH_OMAP2420) += sram242x.o obj-$(CONFIG_ARCH_OMAP2420) += sram242x.o