94 lines
3.0 KiB
Rust
94 lines
3.0 KiB
Rust
// Build mcuboot as a library, based on the requested features.
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extern crate gcc;
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use std::env;
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use std::fs;
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use std::io;
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use std::path::Path;
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fn main() {
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// Feature flags.
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let sig_rsa = env::var("CARGO_FEATURE_SIG_RSA").is_ok();
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let sig_ecdsa = env::var("CARGO_FEATURE_SIG_ECDSA").is_ok();
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let overwrite_only = env::var("CARGO_FEATURE_OVERWRITE_ONLY").is_ok();
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let mut conf = gcc::Config::new();
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conf.define("__BOOTSIM__", None);
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conf.define("MCUBOOT_USE_FLASH_AREA_GET_SECTORS", None);
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conf.define("MCUBOOT_VALIDATE_SLOT0", None);
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// Currently, mbed TLS cannot build with both RSA and ECDSA.
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if sig_rsa && sig_ecdsa {
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panic!("mcuboot does not support RSA and ECDSA at the same time");
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}
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if sig_rsa {
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conf.define("MCUBOOT_SIGN_RSA", None);
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conf.define("MCUBOOT_USE_MBED_TLS", None);
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conf.define("MCUBOOT_USE_MBED_TLS", None);
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conf.define("MBEDTLS_CONFIG_FILE", Some("<config-boot.h>"));
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conf.include("mbedtls/include");
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conf.file("mbedtls/library/sha256.c");
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conf.file("../../boot/zephyr/keys.c");
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conf.file("mbedtls/library/rsa.c");
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conf.file("mbedtls/library/bignum.c");
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conf.file("mbedtls/library/asn1parse.c");
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} else if sig_ecdsa {
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conf.define("MCUBOOT_SIGN_ECDSA", None);
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conf.define("MCUBOOT_USE_TINYCRYPT", None);
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// TODO: Compile files + tinycrypt.
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panic!("ECDSA not yet implemented in sim");
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} else {
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// Neither signature type, only verify sha256.
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conf.define("MCUBOOT_USE_MBED_TLS", None);
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conf.define("MBEDTLS_CONFIG_FILE", Some("<config-boot.h>"));
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conf.include("mbedtls/include");
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conf.file("mbedtls/library/sha256.c");
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}
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if overwrite_only {
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conf.define("MCUBOOT_OVERWRITE_ONLY", None);
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}
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conf.file("../../boot/bootutil/src/image_validate.c");
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conf.file("../../boot/bootutil/src/image_rsa.c");
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conf.file("../../boot/bootutil/src/loader.c");
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conf.file("../../boot/bootutil/src/caps.c");
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conf.file("../../boot/bootutil/src/bootutil_misc.c");
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conf.file("csupport/run.c");
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conf.include("../../boot/bootutil/include");
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conf.include("../../boot/zephyr/include");
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conf.debug(true);
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conf.flag("-Wall");
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conf.flag("-Werror");
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conf.compile("libbootutil.a");
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walk_dir("../../boot").unwrap();
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walk_dir("csupport").unwrap();
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walk_dir("mbedtls/include").unwrap();
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walk_dir("mbedtls/library").unwrap();
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}
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// Output the names of all files within a directory so that Cargo knows when to rebuild.
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fn walk_dir<P: AsRef<Path>>(path: P) -> io::Result<()> {
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for ent in fs::read_dir(path.as_ref())? {
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let ent = ent?;
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let p = ent.path();
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if p.is_dir() {
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walk_dir(p)?;
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} else {
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// Note that non-utf8 names will fail.
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let name = p.to_str().unwrap();
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if name.ends_with(".c") || name.ends_with(".h") {
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println!("cargo:rerun-if-changed={}", name);
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}
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}
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}
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Ok(())
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}
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