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#
# Copyright OpenEmbedded Contributors
#
# SPDX-License-Identifier: MIT
#
##
## Purpose:
## This class is to support building with cargo. It
## must be different than cargo.bbclass because Rust
## now builds with Cargo but cannot use cargo.bbclass
## due to dependencies and assumptions in cargo.bbclass
## that Rust & Cargo are already installed. So this
## is used by cargo.bbclass and Rust
##
# add crate fetch support
inherit rust-common
# Where we download our registry and dependencies to
export CARGO_HOME = "${WORKDIR}/cargo_home"
# The pkg-config-rs library used by cargo build scripts disables itself when
# cross compiling unless this is defined. We set up pkg-config appropriately
# for cross compilation, so tell it we know better than it.
export PKG_CONFIG_ALLOW_CROSS = "1"
# Don't instruct cargo to use crates downloaded by bitbake. Some rust packages,
# for example the rust compiler itself, come with their own vendored sources.
# Specifying two [source.crates-io] will not work.
CARGO_DISABLE_BITBAKE_VENDORING ?= "0"
# Used by libstd-rs to point to the vendor dir included in rustc src
CARGO_VENDORING_DIRECTORY ?= "${CARGO_HOME}/bitbake"
CARGO_RUST_TARGET_CCLD ?= "${RUST_TARGET_CCLD}"
cargo_common_do_configure () {
mkdir -p ${CARGO_HOME}/bitbake
cat <<- EOF > ${CARGO_HOME}/config
# EXTRA_OECARGO_PATHS
paths = [
$(for p in ${EXTRA_OECARGO_PATHS}; do echo \"$p\",; done)
]
EOF
cat <<- EOF >> ${CARGO_HOME}/config
# Local mirror vendored by bitbake
[source.bitbake]
directory = "${CARGO_VENDORING_DIRECTORY}"
EOF
if [ ${CARGO_DISABLE_BITBAKE_VENDORING} = "0" ]; then
cat <<- EOF >> ${CARGO_HOME}/config
[source.crates-io]
replace-with = "bitbake"
local-registry = "/nonexistant"
EOF
fi
cat <<- EOF >> ${CARGO_HOME}/config
[http]
# Multiplexing can't be enabled because http2 can't be enabled
# in curl-native without dependency loops
multiplexing = false
# Ignore the hard coded and incorrect path to certificates
cainfo = "${STAGING_ETCDIR_NATIVE}/ssl/certs/ca-certificates.crt"
EOF
cat <<- EOF >> ${CARGO_HOME}/config
# HOST_SYS
[target.${RUST_HOST_SYS}]
linker = "${CARGO_RUST_TARGET_CCLD}"
EOF
if [ "${RUST_HOST_SYS}" != "${RUST_BUILD_SYS}" ]; then
cat <<- EOF >> ${CARGO_HOME}/config
# BUILD_SYS
[target.${RUST_BUILD_SYS}]
linker = "${RUST_BUILD_CCLD}"
EOF
fi
if [ "${RUST_TARGET_SYS}" != "${RUST_BUILD_SYS}" -a "${RUST_TARGET_SYS}" != "${RUST_HOST_SYS}" ]; then
cat <<- EOF >> ${CARGO_HOME}/config
# TARGET_SYS
[target.${RUST_TARGET_SYS}]
linker = "${RUST_TARGET_CCLD}"
EOF
fi
# Put build output in build directory preferred by bitbake instead of
# inside source directory unless they are the same
if [ "${B}" != "${S}" ]; then
cat <<- EOF >> ${CARGO_HOME}/config
[build]
# Use out of tree build destination to avoid poluting the source tree
target-dir = "${B}/target"
EOF
fi
cat <<- EOF >> ${CARGO_HOME}/config
[term]
progress.when = 'always'
progress.width = 80
EOF
}
oe_cargo_fix_env () {
export CC="${RUST_TARGET_CC}"
export CXX="${RUST_TARGET_CXX}"
export CFLAGS="${CFLAGS}"
export CXXFLAGS="${CXXFLAGS}"
export AR="${AR}"
export TARGET_CC="${RUST_TARGET_CC}"
export TARGET_CXX="${RUST_TARGET_CXX}"
export TARGET_CFLAGS="${CFLAGS}"
export TARGET_CXXFLAGS="${CXXFLAGS}"
export TARGET_AR="${AR}"
export HOST_CC="${RUST_BUILD_CC}"
export HOST_CXX="${RUST_BUILD_CXX}"
export HOST_CFLAGS="${BUILD_CFLAGS}"
export HOST_CXXFLAGS="${BUILD_CXXFLAGS}"
export HOST_AR="${BUILD_AR}"
}
EXTRA_OECARGO_PATHS ??= ""
EXPORT_FUNCTIONS do_configure