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trezor-firmware/core/embed/rust/build.rs
cepetr 089db2cadf refactor(core): restructure embed folder 
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2024-11-18 09:41:02 +01:00

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#[cfg(feature = "test")]
use std::ffi::OsStr;
use std::{env, path::PathBuf, process::Command};
fn main() {
println!("cargo:rustc-env=BUILD_DIR={}", build_dir());
#[cfg(feature = "micropython")]
generate_qstr_bindings();
#[cfg(feature = "micropython")]
generate_micropython_bindings();
generate_trezorhal_bindings();
#[cfg(feature = "crypto")]
generate_crypto_bindings();
#[cfg(feature = "test")]
link_core_objects();
}
fn build_dir() -> String {
let build_dir_str = env::var("BUILD_DIR").unwrap_or(String::from("../../build/unix"));
PathBuf::from(build_dir_str)
.canonicalize()
.unwrap()
.to_str()
.unwrap()
.to_string()
}
const DEFAULT_BINDGEN_MACROS_COMMON: &[&str] = &[
"-I../projects/unix",
"-I../../build/unix",
"-I../../vendor/micropython/ports/unix",
"-I../../../crypto",
"-I../../../storage",
"-I../../vendor/micropython",
"-I../../vendor/micropython/lib/uzlib",
"-I../rtl/inc",
"-I../gfx/inc",
"-I../io/button/inc",
"-I../io/display/inc",
"-I../io/haptic/inc",
"-I../io/touch/inc",
"-I../io/rgb_led/inc",
"-I../io/usb/inc",
"-I../sec/entropy/inc",
"-I../sys/time/inc",
"-I../util/flash/inc",
"-I../util/translations/inc",
"-I../models",
"-DTREZOR_EMULATOR",
"-DUSE_BUTTON",
"-DUSE_TOUCH",
"-DUSE_HAPTIC",
"-DUSE_RGB_LED",
];
#[cfg(feature = "model_tt")]
const DEFAULT_BINDGEN_MACROS_T2T1: &[&str] = &[
"-DSTM32F427",
"-DTREZOR_MODEL_T",
"-DFLASH_BIT_ACCESS=1",
"-DFLASH_BLOCK_WORDS=1",
"-DTREZOR_BOARD=\"T2T1/boards/t2t1-unix.h\"",
];
#[cfg(not(feature = "model_tt"))]
const DEFAULT_BINDGEN_MACROS_T2T1: &[&str] = &[];
#[cfg(feature = "model_tr")]
const DEFAULT_BINDGEN_MACROS_T2B1: &[&str] = &[
"-DSTM32F427",
"-DTREZOR_MODEL_R",
"-DFLASH_BIT_ACCESS=1",
"-DFLASH_BLOCK_WORDS=1",
"-DTREZOR_BOARD=\"T2B1/boards/t2b1-unix.h\"",
];
#[cfg(not(feature = "model_tr"))]
const DEFAULT_BINDGEN_MACROS_T2B1: &[&str] = &[];
#[cfg(feature = "model_mercury")]
const DEFAULT_BINDGEN_MACROS_T3T1: &[&str] = &[
"-DSTM32U5",
"-DTREZOR_MODEL_T3T1",
"-DFLASH_BIT_ACCESS=0",
"-DFLASH_BLOCK_WORDS=4",
"-DTREZOR_BOARD=\"T3T1/boards/t3t1-unix.h\"",
];
#[cfg(not(feature = "model_mercury"))]
const DEFAULT_BINDGEN_MACROS_T3T1: &[&str] = &[];
fn add_bindgen_macros<'a>(clang_args: &mut Vec<&'a str>, envvar: Option<&'a str>) {
let default_macros = DEFAULT_BINDGEN_MACROS_COMMON
.iter()
.chain(DEFAULT_BINDGEN_MACROS_T2T1)
.chain(DEFAULT_BINDGEN_MACROS_T2B1)
.chain(DEFAULT_BINDGEN_MACROS_T3T1);
match envvar {
Some(envvar) => clang_args.extend(envvar.split(',')),
None => clang_args.extend(default_macros),
}
}
/// Generates Rust module that exports QSTR constants used in firmware.
#[cfg(feature = "micropython")]
fn generate_qstr_bindings() {
let out_path = env::var("OUT_DIR").unwrap();
// Tell cargo to invalidate the built crate whenever the header changes.
println!("cargo:rerun-if-changed=qstr.h");
let dest_file = PathBuf::from(out_path).join("qstr.rs");
bindgen::Builder::default()
.header("qstr.h")
// Build the Qstr enum as a newtype so we can define method on it.
.default_enum_style(bindgen::EnumVariation::NewType {
is_bitfield: false,
is_global: false,
})
// Pass in correct include paths.
.clang_args(&["-I", &build_dir()])
// Customize the standard types.
.use_core()
.ctypes_prefix("cty")
.size_t_is_usize(true)
// Tell cargo to invalidate the built crate whenever any of the
// included header files change.
.parse_callbacks(Box::new(bindgen::CargoCallbacks))
.generate()
.expect("Unable to generate Rust QSTR bindings")
.write_to_file(&dest_file)
.unwrap();
// rewrite the file to change internal representation of the qstr newtype
let qstr_generated = std::fs::read_to_string(&dest_file).unwrap();
let qstr_modified = qstr_generated.replace(
"pub struct Qstr(pub cty::c_uint);",
"pub struct Qstr(pub usize);",
);
assert_ne!(qstr_generated, qstr_modified, "Failed to rewrite type of Qstr in qstr.rs file.\nThis indicates that the generated file has changed. Please update the rewriting code.");
std::fs::write(&dest_file, qstr_modified).unwrap();
}
fn prepare_bindings() -> bindgen::Builder {
let mut bindings = bindgen::Builder::default();
let build_dir_include = format!("-I{}", build_dir());
let mut clang_args: Vec<&str> = Vec::new();
let bindgen_macros_env = env::var("BINDGEN_MACROS").ok();
add_bindgen_macros(&mut clang_args, bindgen_macros_env.as_deref());
#[cfg(feature = "framebuffer")]
{
bindings = bindings.clang_args(&["-DFRAMEBUFFER"]);
}
clang_args.push(&build_dir_include);
// Pass in correct include paths and defines.
if is_firmware() {
clang_args.push("-nostdinc");
// Append gcc-arm-none-eabi's include paths.
let cc_output = Command::new("arm-none-eabi-gcc")
.arg("-E")
.arg("-Wp,-v")
.arg("-")
.output()
.expect("arm-none-eabi-gcc failed to execute");
if !cc_output.status.success() {
panic!("arm-none-eabi-gcc failed");
}
let include_paths =
String::from_utf8(cc_output.stderr).expect("arm-none-eabi-gcc returned invalid output");
let include_args = include_paths
.lines()
.skip_while(|s| !s.contains("search starts here:"))
.take_while(|s| !s.contains("End of search list."))
.filter(|s| s.starts_with(' '))
.map(|s| format!("-I{}", s.trim()));
bindings = bindings.clang_args(include_args);
}
bindings = bindings.clang_args(&clang_args);
bindings
// Customize the standard types.
.use_core()
.ctypes_prefix("cty")
.size_t_is_usize(true)
// Disable the layout tests. They spew out a lot of code-style bindings, and are not too
// relevant for our use-case.
.layout_tests(false)
// Tell cargo to invalidate the built crate whenever any of the
// included header files change.
.parse_callbacks(Box::new(bindgen::CargoCallbacks))
}
#[cfg(feature = "micropython")]
fn generate_micropython_bindings() {
let out_path = env::var("OUT_DIR").unwrap();
// Tell cargo to invalidate the built crate whenever the header changes.
println!("cargo:rerun-if-changed=micropython.h");
let bindings = prepare_bindings()
.header("micropython.h")
// obj
.new_type_alias("mp_obj_t")
.allowlist_type("mp_obj_type_t")
.allowlist_type("mp_obj_base_t")
.allowlist_function("mp_obj_new_int")
.allowlist_function("mp_obj_new_int_from_ll")
.allowlist_function("mp_obj_new_int_from_ull")
.allowlist_function("mp_obj_new_int_from_uint")
.allowlist_function("mp_obj_new_bytes")
.allowlist_function("mp_obj_new_str")
.allowlist_function("mp_obj_new_tuple")
.allowlist_function("mp_obj_new_attrtuple")
.allowlist_function("mp_obj_get_int_maybe")
.allowlist_function("mp_obj_is_true")
.allowlist_function("mp_call_function_n_kw")
.allowlist_function("trezor_obj_get_ll_checked")
.allowlist_function("trezor_obj_str_from_rom_text")
// buffer
.allowlist_function("mp_get_buffer")
.allowlist_var("MP_BUFFER_READ")
.allowlist_var("MP_BUFFER_WRITE")
.allowlist_var("mp_type_str")
.allowlist_var("mp_type_bytes")
.allowlist_var("mp_type_bytearray")
.allowlist_var("mp_type_memoryview")
// dict
.allowlist_type("mp_obj_dict_t")
.allowlist_function("mp_obj_new_dict")
.allowlist_var("mp_type_dict")
// fun
.allowlist_type("mp_obj_fun_builtin_fixed_t")
.allowlist_var("mp_type_fun_builtin_0")
.allowlist_var("mp_type_fun_builtin_1")
.allowlist_var("mp_type_fun_builtin_2")
.allowlist_var("mp_type_fun_builtin_3")
.allowlist_type("mp_obj_fun_builtin_var_t")
.allowlist_var("mp_type_fun_builtin_var")
// gc
.allowlist_function("gc_alloc")
.allowlist_function("gc_free")
.allowlist_var("GC_ALLOC_FLAG_HAS_FINALISER")
// iter
.allowlist_type("mp_obj_iter_buf_t")
.allowlist_function("mp_getiter")
.allowlist_function("mp_iternext")
// list
.allowlist_type("mp_obj_list_t")
.allowlist_function("mp_obj_new_list")
.allowlist_function("mp_obj_list_append")
.allowlist_function("mp_obj_list_get")
.allowlist_function("mp_obj_list_set_len")
.allowlist_var("mp_type_list")
// map
.allowlist_type("mp_map_elem_t")
.allowlist_function("mp_map_init")
.allowlist_function("mp_map_init_fixed_table")
.allowlist_function("mp_map_lookup")
// exceptions
.allowlist_function("nlr_jump")
.allowlist_function("mp_obj_new_exception")
.allowlist_function("mp_obj_new_exception_args")
.allowlist_function("trezor_obj_call_protected")
.allowlist_var("mp_type_AttributeError")
.allowlist_var("mp_type_EOFError")
.allowlist_var("mp_type_IndexError")
.allowlist_var("mp_type_KeyError")
.allowlist_var("mp_type_MemoryError")
.allowlist_var("mp_type_OverflowError")
.allowlist_var("mp_type_ValueError")
.allowlist_var("mp_type_TypeError")
// time
.allowlist_function("mp_hal_ticks_ms")
.allowlist_function("mp_hal_delay_ms")
// debug
.allowlist_function("mp_print_strn")
.allowlist_var("mp_plat_print")
// typ
.allowlist_var("mp_type_type")
// module
.allowlist_type("mp_obj_module_t")
.allowlist_var("mp_type_module")
// qstr
.allowlist_function("qstr_data")
// tuple
.allowlist_type("mp_obj_tuple_t")
// `ffi::mp_map_t` type is not allowed to be `Clone` or `Copy` because we tie it
// to the data lifetimes with the `MapRef` type, see `src/micropython/map.rs`.
// TODO: We should disable `Clone` and `Copy` for all types and only allow-list
// the specific cases we require.
.no_copy("_mp_map_t");
// Write the bindings to a file in the OUR_DIR.
bindings
.generate()
.expect("Unable to generate bindings")
.write_to_file(PathBuf::from(out_path).join("micropython.rs"))
.unwrap();
}
fn generate_trezorhal_bindings() {
let out_path = env::var("OUT_DIR").unwrap();
// Tell cargo to invalidate the built crate whenever the header changes.
println!("cargo:rerun-if-changed=trezorhal.h");
let bindings = prepare_bindings()
.header("trezorhal.h")
// model
.allowlist_var("MODEL_INTERNAL_NAME")
.allowlist_var("MODEL_FULL_NAME")
// entropy
.allowlist_var("HW_ENTROPY_LEN")
.allowlist_function("entropy_get")
// secbool
.allowlist_type("secbool")
.must_use_type("secbool")
.allowlist_var("sectrue")
.allowlist_var("secfalse")
// flash
.allowlist_function("flash_init")
// storage
.allowlist_var("EXTERNAL_SALT_SIZE")
.allowlist_function("storage_init")
.allowlist_function("storage_wipe")
.allowlist_function("storage_is_unlocked")
.allowlist_function("storage_lock")
.allowlist_function("storage_unlock")
.allowlist_function("storage_has_pin")
.allowlist_function("storage_get_pin_rem")
.allowlist_function("storage_change_pin")
.allowlist_function("storage_ensure_not_wipe_code")
.allowlist_function("storage_has")
.allowlist_function("storage_get")
.allowlist_function("storage_set")
.allowlist_function("storage_delete")
.allowlist_function("storage_set_counter")
.allowlist_function("storage_next_counter")
.allowlist_function("translations_read")
.allowlist_function("translations_write")
.allowlist_function("translations_erase")
.allowlist_function("translations_area_bytesize")
// display
.allowlist_function("display_refresh")
.allowlist_function("display_set_backlight")
.allowlist_function("display_get_backlight")
.allowlist_function("display_wait_for_sync")
.allowlist_var("DISPLAY_RESX")
.allowlist_var("DISPLAY_RESY")
.allowlist_type("display_fb_info_t")
.allowlist_function("display_get_frame_buffer")
.allowlist_function("display_fill")
.allowlist_function("display_copy_rgb565")
// gfx_bitblt
.allowlist_type("gfx_bitblt_t")
.allowlist_function("gfx_rgb565_fill")
.allowlist_function("gfx_rgb565_copy_mono4")
.allowlist_function("gfx_rgb565_copy_rgb565")
.allowlist_function("gfx_rgb565_blend_mono4")
.allowlist_function("gfx_rgb565_blend_mono8")
.allowlist_function("gfx_rgba8888_fill")
.allowlist_function("gfx_rgba8888_copy_mono4")
.allowlist_function("gfx_rgba8888_copy_rgb565")
.allowlist_function("gfx_rgba8888_copy_rgba8888")
.allowlist_function("gfx_rgba8888_blend_mono4")
.allowlist_function("gfx_rgba8888_blend_mono8")
.allowlist_function("gfx_mono8_fill")
.allowlist_function("gfx_mono8_copy_mono1p")
.allowlist_function("gfx_mono8_copy_mono4")
.allowlist_function("gfx_mono8_blend_mono1p")
.allowlist_function("gfx_mono8_blend_mono4")
.allowlist_function("gfx_bitblt_wait")
// fonts
.allowlist_function("font_height")
.allowlist_function("font_max_height")
.allowlist_function("font_baseline")
.allowlist_function("font_get_glyph")
.allowlist_function("font_text_width")
// uzlib
.allowlist_function("uzlib_uncompress_init")
.allowlist_function("uzlib_uncompress")
// bip39
.allowlist_function("mnemonic_word_completion_mask")
.allowlist_var("BIP39_WORDLIST_ENGLISH")
.allowlist_var("BIP39_WORD_COUNT")
// slip39
.allowlist_function("slip39_word_completion_mask")
.allowlist_function("button_sequence_to_word")
.allowlist_var("SLIP39_WORDLIST")
.allowlist_var("SLIP39_WORD_COUNT")
// random
.allowlist_function("random_uniform")
// rgb led
.allowlist_function("rgb_led_set_color")
// systick
.allowlist_function("systick_delay_ms")
.allowlist_function("systick_ms")
// toif
.allowlist_type("toif_format_t")
//usb
.allowlist_function("usb_configured")
// touch
.allowlist_function("touch_get_event")
// button
.allowlist_type("button_t")
.allowlist_function("button_get_event")
// haptic
.allowlist_type("haptic_effect_t")
.allowlist_function("haptic_play")
.allowlist_function("haptic_play_custom");
// Write the bindings to a file in the OUR_DIR.
bindings
.generate()
.expect("Unable to generate bindings")
.write_to_file(PathBuf::from(out_path).join("trezorhal.rs"))
.unwrap();
}
fn generate_crypto_bindings() {
let out_path = env::var("OUT_DIR").unwrap();
// Tell cargo to invalidate the built crate whenever the header changes.
println!("cargo:rerun-if-changed=crypto.h");
let bindings = prepare_bindings()
.header("crypto.h")
// ed25519
.allowlist_type("ed25519_signature")
.allowlist_type("ed25519_public_key")
.allowlist_function("ed25519_cosi_combine_publickeys")
// incorrect signature from bindgen, see crypto::ed25519:ffi_override
//.allowlist_function("ed25519_sign_open")
// sha256
.allowlist_var("SHA256_DIGEST_LENGTH")
.allowlist_type("SHA256_CTX")
.no_copy("SHA256_CTX")
.allowlist_function("sha256_Init")
.allowlist_function("sha256_Update")
.allowlist_function("sha256_Final");
// Write the bindings to a file in the OUR_DIR.
bindings
.clang_arg("-fgnuc-version=0") // avoid weirdness with ed25519.h CONST definition
.generate()
.expect("Unable to generate bindings")
.write_to_file(PathBuf::from(out_path).join("crypto.rs"))
.unwrap();
}
fn is_firmware() -> bool {
let target = env::var("TARGET").unwrap();
target.starts_with("thumbv7") || target.starts_with("thumbv8")
}
#[cfg(feature = "test")]
fn link_core_objects() {
let crate_path = env::var("CARGO_MANIFEST_DIR").unwrap();
let build_path = format!("{}/../../build/unix", crate_path);
// List of object filenames to ignore in the `embed` directory
let embed_blocklist = [OsStr::new("main_main.o")];
// Collect all objects that the `core` library uses, and link it in. We have to
// make sure to avoid the object with the `_main` symbol, so we don't get any
// duplicates.
let mut cc = cc::Build::new();
for obj in glob::glob(&format!("{}/embed/**/*.o", build_path)).unwrap() {
let obj = obj.unwrap();
if embed_blocklist.contains(&obj.file_name().unwrap()) {
// Ignore.
} else {
cc.object(obj);
}
}
for obj in glob::glob(&format!("{}/vendor/**/*.o", build_path)).unwrap() {
let obj = obj.unwrap();
cc.object(obj);
}
// Add frozen modules, if present.
for obj in glob::glob(&format!("{}/*.o", build_path)).unwrap() {
cc.object(obj.unwrap());
}
// Compile all the objects into a static library and link it in automatically.
cc.compile("core_lib");
println!("cargo:rustc-link-lib=SDL2");
println!("cargo:rustc-link-lib=SDL2_image");
}
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