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trezor-firmware/core/embed/rust/build.rs

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Rust
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#[cfg(feature = "test")]
use std::ffi::OsStr;
use std::{env, path::PathBuf, process::Command};
fn main() {
#[cfg(feature = "micropython")]
generate_qstr_bindings();
#[cfg(feature = "micropython")]
generate_micropython_bindings();
generate_trezorhal_bindings();
#[cfg(feature = "test")]
link_core_objects();
}
fn model() -> String {
match env::var("TREZOR_MODEL") {
Ok(model) => model,
Err(_) => String::from("T"),
}
}
fn board() -> String {
if !is_firmware() {
return String::from("board-unix.h");
}
match env::var("TREZOR_BOARD") {
Ok(board) => {
format!("boards/{}", board)
}
Err(_) => String::from("boards/trezor_t.h"),
}
}
/// 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");
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 })
// Pass in correct include paths.
.clang_args(&[
"-I",
if is_firmware() {
"../../build/firmware"
} else {
"../../build/unix"
},
])
// 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(PathBuf::from(out_path).join("qstr.rs"))
.unwrap();
}
fn prepare_bindings() -> bindgen::Builder {
let mut bindings = bindgen::Builder::default();
// Common include paths and defines
bindings = bindings.clang_args([
"-I../../../crypto",
"-I../../../storage",
"-I../../vendor/micropython",
"-I../../vendor/micropython/lib/uzlib",
"-I../extmod/modtrezorui", // for display.h
format!("-DTREZOR_MODEL_{}", model()).as_str(),
format!("-DTREZOR_BOARD=\"{}\"", board()).as_str(),
]);
// Pass in correct include paths and defines.
if is_firmware() {
bindings = bindings.clang_args(&[
"-nostdinc",
"-I../firmware",
"-I../trezorhal",
"-I../../build/firmware",
"-I../../vendor/micropython/lib/stm32lib/STM32F4xx_HAL_Driver/Inc",
"-I../../vendor/micropython/lib/stm32lib/CMSIS/STM32F4xx/Include",
"-I../../vendor/micropython/lib/cmsis/inc",
"-DSTM32F427xx",
"-DUSE_HAL_DRIVER",
"-DSTM32_HAL_H=<stm32f4xx.h>",
]);
// 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);
} else {
bindings = bindings.clang_args(&[
"-I../unix",
"-I../../build/unix",
"-I../../vendor/micropython/ports/unix",
"-DTREZOR_EMULATOR",
]);
}
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_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_get_ull_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_BUFFER_RW")
.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_function("mp_obj_dict_store")
.allowlist_var("mp_type_dict")
// fun
.allowlist_type("mp_obj_fun_builtin_fixed_t")
.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")
// 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_type("mp_map_lookup_kind_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_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")
// `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")
// common
.allowlist_var("HW_ENTROPY_DATA")
// 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_var("FLAG_PUBLIC")
.allowlist_var("FLAGS_WRITE")
.allowlist_var("MAX_APPID")
.allowlist_type("PIN_UI_WAIT_CALLBACK")
.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")
// display
.allowlist_function("display_init")
.allowlist_function("display_offset")
.allowlist_function("display_refresh")
.allowlist_function("display_backlight")
.allowlist_function("display_text")
.allowlist_function("display_text_render_buffer")
.allowlist_function("display_text_width")
.allowlist_function("display_bar")
.allowlist_function("display_bar_radius")
.allowlist_function("display_icon")
.allowlist_function("display_image")
.allowlist_function("display_toif_info")
.allowlist_function("display_loader")
.allowlist_function("display_pixeldata")
.allowlist_function("display_pixeldata_dirty")
.allowlist_function("display_set_window")
.allowlist_var("DISPLAY_CMD_ADDRESS")
.allowlist_var("DISPLAY_DATA_ADDRESS")
.allowlist_type("toif_format_t")
// fonts
.allowlist_function("font_height")
.allowlist_function("font_max_height")
.allowlist_function("font_baseline")
.allowlist_function("font_get_glyph")
// 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")
// random
.allowlist_function("random_uniform")
// rgb led
.allowlist_function("rgb_led_set_color")
// time
.allowlist_function("hal_delay")
.allowlist_function("hal_ticks_ms")
// dma2d
.allowlist_function("dma2d_setup_4bpp_over_4bpp")
.allowlist_function("dma2d_setup_4bpp_over_16bpp")
.allowlist_function("dma2d_start_blend")
.allowlist_function("dma2d_wait_for_transfer")
//buffers
.allowlist_function("buffers_get_line_buffer_16bpp")
.allowlist_function("buffers_get_line_buffer_4bpp")
.allowlist_function("buffers_get_text_buffer")
.allowlist_var("text_buffer_height")
.allowlist_var("buffer_width");
// 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 is_firmware() -> bool {
let target = env::var("TARGET").unwrap();
target.starts_with("thumbv7")
}
#[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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