kumquat-buildroot/package/rust/rust.mk
Romain Naour 20406b7159 package/rust: provide RUSTFLAGS for cargo
While building the rust toolchain, the build system ends up using
cargo (from [...]/output/build/host-rust-bin-1.74.1/cargo/bin/cargo)
to build some tools like rustdoc-tool.

But the host-rust package doesn't use the cargo infractructure (since
it provides cargo binary) and our cargo environment variables [1] are
not set to crosscompile cargo packages in the rust toolchain.

For exemple, we usually set RUSTFLAGS="-C link-arg=-Wl,-rpath,$(HOST_DIR)/lib"
to force cargo using libraries provided by Buildroot in $(HOST_DIR)/lib.

RUSTFLAGS is actually needed to find zlib library (host-zlib) to link
rustdoc-tool when zlib is not installed on the host.

Add $(HOST_PKG_CARGO_ENV) in HOST_RUST_BUILD_CMDS since it already
includes RUSTFLAGS but also CARGO_HOME.

Fixes:

  error: could not compile `rustdoc-tool` (bin "rustdoc_tool_binary") due to previous error

[1] https://gitlab.com/buildroot.org/buildroot/-/blob/2024.02-rc1/package/pkg-cargo.mk#L165

Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2024-03-04 20:24:35 +01:00

100 lines
3.1 KiB
Makefile

################################################################################
#
# rust
#
################################################################################
# When updating this version, check whether support/download/cargo-post-process
# still generates the same archives.
RUST_VERSION = 1.74.1
RUST_SOURCE = rustc-$(RUST_VERSION)-src.tar.xz
RUST_SITE = https://static.rust-lang.org/dist
RUST_LICENSE = Apache-2.0 or MIT
RUST_LICENSE_FILES = LICENSE-APACHE LICENSE-MIT
HOST_RUST_PROVIDES = host-rustc
HOST_RUST_DEPENDENCIES = \
toolchain \
host-pkgconf \
host-python3 \
host-rust-bin \
host-openssl \
host-zlib \
$(BR2_CMAKE_HOST_DEPENDENCY)
HOST_RUST_VERBOSITY = $(if $(VERBOSE),2,0)
# Some vendor crates contain Cargo.toml.orig files. The associated
# .cargo-checksum.json file will contain a checksum for Cargo.toml.orig but
# support/scripts/apply-patches.sh will delete them. This will cause the build
# to fail, as Cargo will not be able to find the file and verify the checksum.
# So, remove all Cargo.toml.orig entries from the affected .cargo-checksum.json
# files
define HOST_RUST_EXCLUDE_ORIG_FILES
for file in $$(find $(@D) -name '*.orig'); do \
crate=$$(dirname $${file}); \
fn=$${crate}/.cargo-checksum.json; \
sed -i -e 's/"Cargo.toml.orig":"[a-z0-9]\+",//g' $${fn}; \
done
endef
HOST_RUST_POST_EXTRACT_HOOKS += HOST_RUST_EXCLUDE_ORIG_FILES
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 = $(HOST_RUST_VERBOSITY)'; \
echo '[install]'; \
echo 'prefix = "$(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 'ninja = false'; \
echo 'ldflags = "$(HOST_LDFLAGS)"'; \
) > $(@D)/config.toml
endef
define HOST_RUST_BUILD_CMDS
cd $(@D); $(HOST_MAKE_ENV) $(HOST_PKG_CARGO_ENV) \
$(HOST_DIR)/bin/python$(PYTHON3_VERSION_MAJOR) x.py build
endef
HOST_RUST_INSTALL_OPTS = \
--prefix=$(HOST_DIR) \
--disable-ldconfig
define HOST_RUST_INSTALL_RUSTC
cd $(@D)/build/tmp/tarball/rust/$(RUSTC_HOST_NAME)/rust-$(RUST_VERSION)-$(RUSTC_HOST_NAME); \
./install.sh $(HOST_RUST_INSTALL_OPTS) --components=rustc,cargo,rust-std-$(RUSTC_HOST_NAME)
endef
ifeq ($(BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS),y)
define HOST_RUST_INSTALL_LIBSTD_TARGET
cd $(@D)/build/tmp/tarball/rust-std/$(RUSTC_TARGET_NAME)/rust-std-$(RUST_VERSION)-$(RUSTC_TARGET_NAME); \
./install.sh $(HOST_RUST_INSTALL_OPTS)
endef
endif
define HOST_RUST_INSTALL_CMDS
cd $(@D); $(HOST_MAKE_ENV) $(HOST_DIR)/bin/python$(PYTHON3_VERSION_MAJOR) x.py dist
$(HOST_RUST_INSTALL_RUSTC)
$(HOST_RUST_INSTALL_LIBSTD_TARGET)
endef
$(eval $(host-generic-package))