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6bded4a1fe
* codegen-units, lto, opt-level - Set to values to optimize binary
size[1].
* overflow-checks - Enabled because in release mode, integer overflows
are defined as two's complement wrap[2]. It is highly unlikely that
any program is intentionally relying on this behaviour; it would be
better to panic instead of continue execution in this case.
* debug, debug-assertions, panic, rpath - Set to their default (release)
values, to override any settings made by packages, e.g. ripgrep sets
debug = 1[3].
[1]: https://github.com/johnthagen/min-sized-rust
[2]: https://huonw.github.io/blog/2016/04/myths-and-legends-about-integer-overflow-in-rust/
[3]: https://github.com/BurntSushi/ripgrep/blob/13.0.0/Cargo.toml#L79-L80
Signed-off-by: Jeffery To <jeffery.to@gmail.com>
(cherry picked from commit 8bf2725f9b)
98 lines
2.7 KiB
Makefile
98 lines
2.7 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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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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