mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-23 14:58:09 +00:00
b41d4c71f0
use `trezor.utils.mem_dump("somefile.json")` in a key place, then
`analyze.py src/somefile.json` to look at what is going on
50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
from typing import *
|
|
|
|
|
|
# extmod/modtrezorutils/modtrezorutils-meminfo.h
|
|
def meminfo(filename: str) -> None:
|
|
"""Dumps map of micropython GC arena to a file.
|
|
The JSON file can be decoded by analyze.py
|
|
Only available in the emulator.
|
|
"""
|
|
|
|
|
|
# extmod/modtrezorutils/modtrezorutils.c
|
|
def consteq(sec: bytes, pub: bytes) -> bool:
|
|
"""
|
|
Compares the private information in `sec` with public, user-provided
|
|
information in `pub`. Runs in constant time, corresponding to a length
|
|
of `pub`. Can access memory behind valid length of `sec`, caller is
|
|
expected to avoid any invalid memory access.
|
|
"""
|
|
|
|
|
|
# extmod/modtrezorutils/modtrezorutils.c
|
|
def memcpy(
|
|
dst: bytearray | memoryview,
|
|
dst_ofs: int,
|
|
src: bytes,
|
|
src_ofs: int,
|
|
n: int | None = None,
|
|
) -> int:
|
|
"""
|
|
Copies at most `n` bytes from `src` at offset `src_ofs` to
|
|
`dst` at offset `dst_ofs`. Returns the number of actually
|
|
copied bytes. If `n` is not specified, tries to copy
|
|
as much as possible.
|
|
"""
|
|
|
|
|
|
# extmod/modtrezorutils/modtrezorutils.c
|
|
def halt(msg: str | None = None) -> None:
|
|
"""
|
|
Halts execution.
|
|
"""
|
|
SCM_REVISION: bytes
|
|
VERSION_MAJOR: int
|
|
VERSION_MINOR: int
|
|
VERSION_PATCH: int
|
|
MODEL: str
|
|
EMULATOR: bool
|
|
BITCOIN_ONLY: bool
|