UTS_MACHINE := arc
ifeq ($(CROSS_COMPILE),)
-CROSS_COMPILE := arc-linux-uclibc-
+CROSS_COMPILE := arc-linux-
endif
KBUILD_DEFCONFIG := nsim_700_defconfig
-cflags-y += -mA7 -fno-common -pipe -fno-builtin -D__linux__
+cflags-y += -fno-common -pipe -fno-builtin -D__linux__
+cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7
+cflags-$(CONFIG_ISA_ARCV2) += -mcpu=archs
+
+is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0)
+
+ifdef CONFIG_ISA_ARCOMPACT
+ifeq ($(is_700), 0)
+ $(error Toolchain not configured for ARCompact builds)
+endif
+endif
+
+ifdef CONFIG_ISA_ARCV2
+ifeq ($(is_700), 1)
+ $(error Toolchain not configured for ARCv2 builds)
+endif
+endif
ifdef CONFIG_ARC_CURR_IN_REG
# For a global register defintion, make sure it gets passed to every file
cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock
cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape
-cflags-$(CONFIG_ARC_HAS_RTSC) += -mrtsc
-cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables
+
+ifdef CONFIG_ISA_ARCV2
+
+ifndef CONFIG_ARC_HAS_LL64
+cflags-y += -mno-ll64
+endif
+
+ifndef CONFIG_ARC_HAS_DIV_REM
+cflags-y += -mno-div-rem
+endif
+
+endif
# By default gcc 4.8 generates dwarf4 which kernel unwinder can't grok
ifeq ($(atleast_gcc48),y)
ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
# Generic build system uses -O2, we want -O3
-cflags-y += -O3
+# Note: No need to add to cflags-y as that happens anyways
+ARCH_CFLAGS += -O3
endif
# small data is default for elf32 tool-chain. If not usable, disable it
LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel
-KBUILD_CFLAGS_MODULE += -mlong-calls
+KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode
# Finally dump eveything into kernel build system
KBUILD_CFLAGS += $(cflags-y)
# w/o this dtb won't embed into kernel binary
core-y += arch/arc/boot/dts/
-core-$(CONFIG_ARC_PLAT_FPGA_LEGACY) += arch/arc/plat-arcfpga/
-core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
+core-$(CONFIG_ARC_PLAT_SIM) += arch/arc/plat-sim/
+core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
+core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/
drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/
$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
dtbs: scripts
- $(Q)$(MAKE) $(build)=$(boot)/dts dtbs
+ $(Q)$(MAKE) $(build)=$(boot)/dts
archclean:
$(Q)$(MAKE) $(clean)=$(boot)