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Diffstat (limited to 'lang/rust/rustc_targets.mk')
| -rw-r--r-- | lang/rust/rustc_targets.mk | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/lang/rust/rustc_targets.mk b/lang/rust/rustc_targets.mk new file mode 100644 index 0000000..c2b02be --- /dev/null +++ b/lang/rust/rustc_targets.mk @@ -0,0 +1,100 @@ +# Pull target info so we can type the CPU/CPU_SUBTYPE +target_conf=$(subst .,_,$(subst -,_,$(subst /,_,$(1)))) +PLATFORM_DIR:=$(TOPDIR)/target/linux/$(BOARD) +SUBTARGET:=$(strip $(foreach subdir,$(patsubst $(PLATFORM_DIR)/%/target.mk,%,$(wildcard $(PLATFORM_DIR)/*/target.mk)),$(if $(CONFIG_TARGET_$(call target_conf,$(BOARD)_$(subdir))),$(subdir)))) +PLATFORM_SUBDIR:=$(PLATFORM_DIR)$(if $(SUBTARGET),/$(SUBTARGET)) +include $(PLATFORM_DIR)/Makefile +ifneq ($(PLATFORM_DIR),$(PLATFORM_SUBDIR)) + -include $(PLATFORM_SUBDIR)/target.mk +endif + +# Rust Environmental Vars +CONFIG_HOST_SUFFIX:=$(shell cut -d"-" -f4 <<<"$(GNU_HOST_NAME)") +RUSTC_HOST_ARCH:=$(HOST_ARCH)-unknown-linux-$(CONFIG_HOST_SUFFIX) +RUSTC_TARGET_ARCH:=$(REAL_GNU_TARGET_NAME) +CARGO_HOME:=$(STAGING_DIR_HOST)/.cargo +LLVM_DIR:=$(STAGING_DIR_HOST)/llvm-rust +RUSTC_CPU_TYPE=$(CPU_TYPE) +RUSTFLAGS= +$(warning CPU_TYPE is $(RUSTC_CPU_TYPE)) + +# ARM Logic +ifeq ($(ARCH),arm) +$(warning Entering ARM) + # Split out ARMv7 + ifeq ($(CONFIG_arm_v7),y) + $(warning Target is ARMv7) + RUSTC_TARGET_ARCH:=$(subst arm,armv7,$(RUSTC_TARGET_ARCH)) + # Set ARMv7 Soft-Float vs Hard-Float Instruction Sets + ifeq ($(CONFIG_HAS_FPU),y) + RUST_FEATURES += +v7 -d32 +thumb2 + else + RUST_FEATURES += +v7 +thumb2 +soft-float + endif + endif + + # ARMv5 + ifeq ($(RUSTC_CPU_TYPE),arm926ej-s) + RUSTC_TARGET_ARCH:=$(subst arm,armv5tej,$(RUSTC_TARGET_ARCH)) + RUST_FEATURES += +soft-float +strict-align + endif + + # ARMv6 uses arm-openwrt-linux + ifeq ($(RUSTC_CPU_TYPE),arm1176jzf-s) + $(warning Target is ARMv6) + RUST_FEATURES += +v6 +vfp2 -d32 + endif + + ifeq ($(RUSTC_CPU_TYPE),mpcore) + $(warning Target is mpcore) + RUSTC_TARGET_ARCH:=$(subst arm,armv6k,$(RUSTC_TARGET_ARCH)) + RUST_FEATURES += +v6 +soft-float +strict-align + endif + + # Set Hard-Float ABI if TARGET has FPU + ifeq ($(CONFIG_HAS_FPU),y) + RUSTC_TARGET_ARCH:=$(RUSTC_TARGET_ARCH:muslgnueabi=muslgnueabihf) + endif + + # CPU_SUBTYPE carries instruction flags in OpenWrt + ifneq ($(CPU_SUBTYPE),) + # NEON Support + ifneq ($(findstring neon,$(CPU_SUBTYPE)),) + RUST_FEATURES += +neon + else + RUST_FEATURES += -neon + endif + + ### + # vfpv prefix is not recognized by LLVM - convert to vfp and remove the + # hyphen. This is important for CPU_SUBTYPE that use hyphenated CPU_SUBTYPE + # like neon-vfpv4 and vfpv3-d16 + RUST_FEATURES += +$(lastword $(subst neon,,$(subst vfpv,vfp,$(subst -,,$(CPU_SUBTYPE))))) + endif + + ### + # If the RUST_FEATURES is empty or a single word, use as is, otherwise + # split it into a Comma-delimited format for use with target-features + ifneq ($(words $(RUST_FEATURES)),1) + RUST_TARGET_FEATURES = $(subst $(space),$(comma),$(RUST_FEATURES)) + else + RUST_TARGET_FEATURES = $(RUST_FEATURES) + endif + + ifeq ($(RUSTC_CPU_TYPE),fa526) + RUSTC_TARGET_ARCH:=$(subst arm,armv7,$(RUSTC_TARGET_ARCH)) + RUSTC_CPU_TYPE := generic + endif +endif + +# ARM Logic +ifeq ($(ARCH),mips64) + RUSTC_CPU_TYPE := octeon+ +endif + +# AArch64 Flags +ifeq ($(ARCH),aarch64) + RUSTFLAGS += -C link-arg=-lgcc +endif + +$(warning RUST_TARGET_FEATURES is $(RUST_TARGET_FEATURES))
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