buildroot 在编译rust时裁剪平台类型数量的方法

楼兰公子2026-05-13 22:21

在package/rust/rust.mk下修改宏定义HOST_RUST_CONFIGURE_CMDS

bash 复制代码

define HOST_RUST_CONFIGURE_CMDS
	( \
		echo '[build]'; \
		echo 'target = ["$(RUSTC_TARGET_NAME)"]'; \
		echo 'cargo = "$(HOST_RUST_BIN_DIR)/cargo/bin/cargo"'; \
		echo 'rustc = "$(HOST_RUST_BIN_DIR)/rustc/bin/rustc"'; \
		echo 'python = "$(HOST_DIR)/bin/python$(PYTHON3_VERSION_MAJOR)"'; \
		echo 'submodules = false'; \
		echo 'vendor = true'; \
		echo 'extended = true'; \
		echo 'tools = ["cargo"]'; \
		echo 'compiler-docs = false'; \
		echo 'docs = false'; \
		echo 'verbose = $(HOST_RUST_VERBOSITY)'; \
		echo 'local-rebuild = true'; \
		echo '[install]'; \
		echo 'prefix = "$(HOST_DIR)"'; \
		echo 'sysconfdir = "$(HOST_DIR)/etc"'; \
		echo '[rust]'; \
		echo 'channel = "stable"'; \
		echo 'musl-root = "$(STAGING_DIR)"' ; \
		echo '[target.$(RUSTC_TARGET_NAME)]'; \
		echo 'cc = "$(TARGET_CROSS)gcc"'; \
		echo '[llvm]'; \
		echo 'download-ci-llvm = false'; \
		echo 'ninja = false'; \
		echo 'ldflags = "$(HOST_LDFLAGS)"'; \
	) > $(@D)/config.toml
	    # 修正 LLVM targets，禁止实验性目标
    $(SED) '/^\[llvm\]/a targets = "AArch64;ARM;X86"' $(@D)/config.toml
    $(SED) '/^\[llvm\]/a experimental-targets = ""' $(@D)/config.toml
endef