blob: f60ad4719ace561a9784a7d81fd10b596c37aaf7 [file] [log] [blame]
# additional interop for things like macros and inlined functions
add_library(
rust_wrapper
STATIC
rust_wrapper.c
)
# generate architecture specific wrappers
set(WRAPPER_TARGET ${CMAKE_BINARY_DIR}/rust/src/wrapper_${RUST_BINDINGS}.rs)
set(COMMAND ${BINDGEN_EXECUTABLE} "wrapper.h"
-o ${WRAPPER_TARGET}
--no-derive-default
--enable-function-attribute-detection
--use-core
--size_t-is-usize
--default-macro-constant-type="signed"
--rustified-enum="point_conversion_form_t"
# These are not BoringSSL symbols, they are from glibc
# and are not relevant to the build besides throwing warnings
# about their 'long double' (aka u128) not being FFI safe.
# We block those functions so that the build doesn't
# spam warnings.
#
# https://github.com/rust-lang/rust-bindgen/issues/1549 describes the current problem
# and other folks' solutions.
#
# We will explore migrating to https://github.com/rust-lang/rust-bindgen/pull/2122
# when it lands
--blocklist-function="strtold"
--blocklist-function="qecvt"
--blocklist-function="qecvt_r"
--blocklist-function="qgcvt"
--blocklist-function="qfcvt"
--blocklist-function="qfcvt_r"
-- # these are LLVM arg passthroughs
-I../include
# https://doc.rust-lang.org/nightly/rustc/platform-support.html
--target=${RUST_BINDINGS})
set(INCLUDES "include!(\"wrapper_${RUST_BINDINGS}.rs\");\n")
add_custom_target(
bindgen_rust_${RUST_BINDINGS}
ALL
${COMMAND}
BYPRODUCTS ${WRAPPER_TARGET}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
)
# move files into build directory
configure_file("src/lib.rs" "src/lib.rs")
if(NOT BUILD_SHARED_LIBS)
configure_file("build.rs" "build.rs" COPYONLY)
endif()
configure_file("Cargo.toml" "Cargo.toml" COPYONLY)