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toolchain: add support of ARCv2 architecture

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This change adds support of ARC ISAv2 processors in
OpenWRT toolchain.

In general gcc for ARC may compile code for both ISA versions
simultaneously but libgcc will be built only for default
architecture that's why it's necessary to specify --with-cpu
on gcc configuration.

As for uClibc we need to use different configurations for
different ARC ISAs.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Jo-Philipp Wich <jow@openwrt.org>
Cc: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 48739
This commit is contained in:
John Crispin 2016-02-18 08:22:17 +00:00
parent 7a29f7c22d
commit 7b821a5ae8
3 changed files with 13 additions and 1 deletions
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1
toolchain/gcc/common.mk
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@ -111,6 +111,7 @@ GCC_CONFIGURE:= \
$(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \ $(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
$(if $(CONFIG_mips64)$(CONFIG_mips64el),--with-arch=mips64 \ $(if $(CONFIG_mips64)$(CONFIG_mips64el),--with-arch=mips64 \
--with-abi=$(call qstrip,$(CONFIG_MIPS64_ABI))) \ --with-abi=$(call qstrip,$(CONFIG_MIPS64_ABI))) \
$(if $(CONFIG_arc),--with-cpu=$(CONFIG_CPU_TYPE)) \
--with-gmp=$(TOPDIR)/staging_dir/host \ --with-gmp=$(TOPDIR)/staging_dir/host \
--with-mpfr=$(TOPDIR)/staging_dir/host \ --with-mpfr=$(TOPDIR)/staging_dir/host \
--with-mpc=$(TOPDIR)/staging_dir/host \ --with-mpc=$(TOPDIR)/staging_dir/host \

3
toolchain/uClibc/common.mk
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@ -41,8 +41,9 @@ GEN_CONFIG=$(SCRIPT_DIR)/kconfig.pl -n \
$(if $(CONFIG_UCLIBC_ENABLE_DEBUG),$(if $(wildcard $(CONFIG_DIR)/debug),'+' $(CONFIG_DIR)/debug)) \ $(if $(CONFIG_UCLIBC_ENABLE_DEBUG),$(if $(wildcard $(CONFIG_DIR)/debug),'+' $(CONFIG_DIR)/debug)) \
$(CONFIG_DIR)/$(ARCH)$(strip \ $(CONFIG_DIR)/$(ARCH)$(strip \
$(if $(wildcard $(CONFIG_DIR)/$(ARCH).$(BOARD)),.$(BOARD), \ $(if $(wildcard $(CONFIG_DIR)/$(ARCH).$(BOARD)),.$(BOARD), \
$(if $(filter archs,$(subst ",,$(CONFIG_CPU_TYPE))),hs, \
$(if $(CONFIG_MIPS64_ABI),.$(subst ",,$(CONFIG_MIPS64_ABI)), \ $(if $(CONFIG_MIPS64_ABI),.$(subst ",,$(CONFIG_MIPS64_ABI)), \
$(if $(CONFIG_HAS_SPE_FPU),$(if $(wildcard $(CONFIG_DIR)/$(ARCH).e500),.e500))))) $(if $(CONFIG_HAS_SPE_FPU),$(if $(wildcard $(CONFIG_DIR)/$(ARCH).e500),.e500))))))
CPU_CFLAGS = \ CPU_CFLAGS = \
-funsigned-char -fno-builtin -fno-asm \ -funsigned-char -fno-builtin -fno-asm \

10
toolchain/uClibc/config/archs Normal file
View File

@ -0,0 +1,10 @@
ARCH_ANY_ENDIAN=y
ARCH_LITTLE_ENDIAN=y
ARCH_WANTS_LITTLE_ENDIAN=y
TARGET_ARCH="arc"
TARGET_arc=y
# CONFIG_ARC_CPU_700 is not set
CONFIG_ARC_CPU_HS=y
CONFIG_ARC_PAGE_SIZE_8K=y
# CONFIG_ARC_PAGE_SIZE_16K is not set
# CONFIG_ARC_PAGE_SIZE_4K is not set