3d799c3eee
Patch the target triple for Rust with glibc to include hard floating
point support.
The GNU target triple used elsewhere does not include hard float support,
instead `-mfloat-abi=hard` is passed separately. For Rust it must be
included in the target triple. This was already being done for musl,
this commit adds the same patching for glibc.
Without this patch Rust compilation fails with an error like this
(abbreviated to fit the line length):
ld: error: libstd.so uses VFP register arguments, ... does not
ld: failed to merge target specific data of file ...
Signed-off-by: Drew Young <dyoung@viridiparente.com>
98 lines
2.8 KiB
Makefile
98 lines
2.8 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Copyright (C) 2023 Luca Barbato and Donald Hoskins
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# Rust Environmental Vars
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RUSTC_HOST_SUFFIX:=$(word 4, $(subst -, ,$(GNU_HOST_NAME)))
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RUSTC_HOST_ARCH:=$(HOST_ARCH)-unknown-linux-$(RUSTC_HOST_SUFFIX)
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CARGO_HOME:=$(DL_DIR)/cargo
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ifeq ($(CONFIG_USE_MUSL),y)
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# Force linking of the SSP library for musl
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ifdef CONFIG_PKG_CC_STACKPROTECTOR_REGULAR
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ifeq ($(strip $(PKG_SSP)),1)
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RUSTC_LDFLAGS+=-lssp_nonshared
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endif
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endif
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ifdef CONFIG_PKG_CC_STACKPROTECTOR_STRONG
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ifeq ($(strip $(PKG_SSP)),1)
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RUSTC_LDFLAGS+=-lssp_nonshared
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endif
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endif
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endif
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CARGO_RUSTFLAGS+=-Ctarget-feature=-crt-static $(RUSTC_LDFLAGS)
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ifeq ($(HOST_OS),Darwin)
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ifeq ($(HOST_ARCH),arm64)
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RUSTC_HOST_ARCH:=aarch64-apple-darwin
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endif
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endif
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# mips64 openwrt has a specific targed in rustc
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ifeq ($(ARCH),mips64)
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RUSTC_TARGET_ARCH:=$(REAL_GNU_TARGET_NAME)
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else
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RUSTC_TARGET_ARCH:=$(subst openwrt,unknown,$(REAL_GNU_TARGET_NAME))
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endif
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RUSTC_TARGET_ARCH:=$(subst muslgnueabi,musleabi,$(RUSTC_TARGET_ARCH))
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ifeq ($(ARCH),i386)
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RUSTC_TARGET_ARCH:=$(subst i486,i586,$(RUSTC_TARGET_ARCH))
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else ifeq ($(ARCH),riscv64)
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RUSTC_TARGET_ARCH:=$(subst riscv64,riscv64gc,$(RUSTC_TARGET_ARCH))
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endif
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# ARM Logic
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ifeq ($(ARCH),arm)
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ifeq ($(CONFIG_arm_v7),y)
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RUSTC_TARGET_ARCH:=$(subst arm,armv7,$(RUSTC_TARGET_ARCH))
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endif
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ifeq ($(CONFIG_HAS_FPU),y)
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RUSTC_TARGET_ARCH:=$(subst musleabi,musleabihf,$(RUSTC_TARGET_ARCH))
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RUSTC_TARGET_ARCH:=$(subst gnueabi,gnueabihf,$(RUSTC_TARGET_ARCH))
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endif
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endif
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ifeq ($(ARCH),aarch64)
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RUSTC_CFLAGS:=-mno-outline-atomics
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endif
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# Support only a subset for now.
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RUST_ARCH_DEPENDS:=@(aarch64||arm||i386||i686||mips||mipsel||mips64||mips64el||mipsel||powerpc64||riscv64||x86_64)
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ifneq ($(CONFIG_RUST_SCCACHE),)
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RUST_SCCACHE_DIR:=$(if $(call qstrip,$(CONFIG_RUST_SCCACHE_DIR)),$(call qstrip,$(CONFIG_RUST_SCCACHE_DIR)),$(TOPDIR)/.sccache)
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RUST_SCCACHE_VARS:= \
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CARGO_INCREMENTAL=0 \
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RUSTC_WRAPPER=sccache \
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SCCACHE_DIR=$(RUST_SCCACHE_DIR)
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endif
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CARGO_HOST_CONFIG_VARS= \
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$(RUST_SCCACHE_VARS) \
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CARGO_HOME=$(CARGO_HOME)
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CARGO_HOST_PROFILE:=release
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CARGO_PKG_CONFIG_VARS= \
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$(RUST_SCCACHE_VARS) \
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CARGO_BUILD_TARGET=$(RUSTC_TARGET_ARCH) \
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CARGO_HOME=$(CARGO_HOME) \
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CARGO_PROFILE_RELEASE_CODEGEN_UNITS=1 \
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CARGO_PROFILE_RELEASE_DEBUG=false \
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CARGO_PROFILE_RELEASE_DEBUG_ASSERTIONS=false \
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CARGO_PROFILE_RELEASE_LTO=true \
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CARGO_PROFILE_RELEASE_OPT_LEVEL=z \
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CARGO_PROFILE_RELEASE_OVERFLOW_CHECKS=true \
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CARGO_PROFILE_RELEASE_PANIC=unwind \
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CARGO_PROFILE_RELEASE_RPATH=false \
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CARGO_TARGET_$(subst -,_,$(call toupper,$(RUSTC_TARGET_ARCH)))_LINKER=$(TARGET_CC_NOCACHE) \
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RUSTFLAGS="$(CARGO_RUSTFLAGS)" \
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TARGET_CC=$(TARGET_CC_NOCACHE) \
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TARGET_CFLAGS="$(TARGET_CFLAGS) $(RUSTC_CFLAGS)"
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CARGO_PKG_PROFILE:=$(if $(CONFIG_DEBUG),dev,release)
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