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ARC: rework setting of ARC CPU specific compiler options

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It's a very rare if at all existing occasion when ARC CPU template
is used as is w/o any changes - in the end it's a beauty and competitive
advantage of ARC cores to be tailored for a particular use-case - and
so it doesn't make a lot of sense to offer template-based "-mcpu" selection.
Given for each and every platform we end-up adding quite a few more flags
it's logical to move "-mcpu" selection to platform's definition as well
which we exactly do here.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
This commit is contained in:
Eugeniy Paltsev
2020-02-12 14:23:54 +03:00
committed by Alexey Brodkin
parent defd1e71d0
commit c77bbc2215
12 changed files with 39 additions and 22 deletions
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20
arch/arc/config.mk
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@@ -22,26 +22,6 @@ ifdef CONFIG_ARC_MMU_VER
CONFIG_MMU = 1
endif
ifdef CONFIG_CPU_ARC750D
PLATFORM_CPPFLAGS += -mcpu=arc700
endif
ifdef CONFIG_CPU_ARC770D
PLATFORM_CPPFLAGS += -mcpu=arc700 -mlock -mswape
endif
ifdef CONFIG_CPU_ARCEM6
PLATFORM_CPPFLAGS += -mcpu=arcem
endif
ifdef CONFIG_CPU_ARCHS34
PLATFORM_CPPFLAGS += -mcpu=archs
endif
ifdef CONFIG_CPU_ARCHS38
PLATFORM_CPPFLAGS += -mcpu=archs
endif
PLATFORM_CPPFLAGS += -ffixed-r25 -D__ARC__ -gdwarf-2 -mno-sdata
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections -fno-common