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arch/arc: always needs -matomic with atomic extensions

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As reported by Alexey in:
    https://patchwork.ozlabs.org/patch/1087480/
    https://patchwork.ozlabs.org/patch/1087471/

when BR2_ARC_ATOMIC_EXT is enabled, -matomic needs to always be passed
to the compiler to allow atomic instructions to be used. So instead of
passing them through the command-line CFLAGS, we enforce them in the
toolchain wrapper directly.

Reported-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Yann E. MORIN 2019-07-18 22:52:49 +02:00 committed by Thomas Petazzoni
parent 4281288d2d
commit c568b4f37f
2 changed files with 4 additions and 4 deletions
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4
arch/arch.mk.arc Normal file
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@ -0,0 +1,4 @@
# -matomic is always required when the ARC core has the atomic extensions
ifeq ($(BR2_arc)$(BR2_ARC_ATOMIC_EXT),yy)
ARCH_TOOLCHAIN_WRAPPER_OPTS = -matomic
endif

4
package/Makefile.in
View file

@ -112,10 +112,6 @@ ifeq ($(BR2_xtensa),y)
TARGET_ABI += -mlongcalls -mauto-litpools
endif
ifeq ($(BR2_arc)$(BR2_ARC_ATOMIC_EXT),yy)
TARGET_ABI += -matomic
endif
STAGING_SUBDIR = $(GNU_TARGET_NAME)/sysroot
STAGING_DIR = $(HOST_DIR)/$(STAGING_SUBDIR)