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Diffstat (limited to 'circuitpython/py/persistentcode.h')
| -rw-r--r-- | circuitpython/py/persistentcode.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/circuitpython/py/persistentcode.h b/circuitpython/py/persistentcode.h new file mode 100644 index 0000000..1c53ca1 --- /dev/null +++ b/circuitpython/py/persistentcode.h @@ -0,0 +1,114 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * SPDX-FileCopyrightText: Copyright (c) 2013-2016 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef MICROPY_INCLUDED_PY_PERSISTENTCODE_H +#define MICROPY_INCLUDED_PY_PERSISTENTCODE_H + +#include "py/mpprint.h" +#include "py/reader.h" +#include "py/emitglue.h" + +// The current version of .mpy files +#define MPY_VERSION 5 + +// Macros to encode/decode flags to/from the feature byte +#define MPY_FEATURE_ENCODE_FLAGS(flags) (flags) +#define MPY_FEATURE_DECODE_FLAGS(feat) ((feat) & 3) + +// Macros to encode/decode native architecture to/from the feature byte +#define MPY_FEATURE_ENCODE_ARCH(arch) ((arch) << 2) +#define MPY_FEATURE_DECODE_ARCH(feat) ((feat) >> 2) + +// The feature flag bits encode the compile-time config options that affect +// the generate bytecode. Note: position 0 is now unused +// (formerly MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE). +#define MPY_FEATURE_FLAGS ( \ + ((MICROPY_PY_BUILTINS_STR_UNICODE) << 1) \ + ) +// This is a version of the flags that can be configured at runtime. +#define MPY_FEATURE_FLAGS_DYNAMIC ( \ + ((MICROPY_PY_BUILTINS_STR_UNICODE_DYNAMIC) << 1) \ + ) + +// Define the host architecture +#if MICROPY_EMIT_X86 + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_X86) +#elif MICROPY_EMIT_X64 + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_X64) +#elif MICROPY_EMIT_THUMB + #if defined(__thumb2__) + #if defined(__ARM_FP) && (__ARM_FP & 8) == 8 + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV7EMDP) + #elif defined(__ARM_FP) && (__ARM_FP & 4) == 4 + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV7EMSP) + #else + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV7EM) + #endif + #else + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV7M) + #endif + #define MPY_FEATURE_ARCH_TEST(x) (MP_NATIVE_ARCH_ARMV6M <= (x) && (x) <= MPY_FEATURE_ARCH) +#elif MICROPY_EMIT_ARM + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV6) +#elif MICROPY_EMIT_XTENSA + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_XTENSA) +#elif MICROPY_EMIT_XTENSAWIN + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_XTENSAWIN) +#else + #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_NONE) +#endif + +#ifndef MPY_FEATURE_ARCH_TEST +#define MPY_FEATURE_ARCH_TEST(x) ((x) == MPY_FEATURE_ARCH) +#endif + +// 16-bit little-endian integer with the second and third bytes of supported .mpy files +#define MPY_FILE_HEADER_INT (MPY_VERSION \ + | (MPY_FEATURE_ENCODE_FLAGS(MPY_FEATURE_FLAGS) | MPY_FEATURE_ENCODE_ARCH(MPY_FEATURE_ARCH)) << 8) + +enum { + MP_NATIVE_ARCH_NONE = 0, + MP_NATIVE_ARCH_X86, + MP_NATIVE_ARCH_X64, + MP_NATIVE_ARCH_ARMV6, + MP_NATIVE_ARCH_ARMV6M, + MP_NATIVE_ARCH_ARMV7M, + MP_NATIVE_ARCH_ARMV7EM, + MP_NATIVE_ARCH_ARMV7EMSP, + MP_NATIVE_ARCH_ARMV7EMDP, + MP_NATIVE_ARCH_XTENSA, + MP_NATIVE_ARCH_XTENSAWIN, +}; + +mp_raw_code_t *mp_raw_code_load(mp_reader_t *reader); +mp_raw_code_t *mp_raw_code_load_mem(const byte *buf, size_t len); +mp_raw_code_t *mp_raw_code_load_file(const char *filename); + +void mp_raw_code_save(mp_raw_code_t *rc, mp_print_t *print); +void mp_raw_code_save_file(mp_raw_code_t *rc, const char *filename); + +void mp_native_relocate(void *reloc, uint8_t *text, uintptr_t reloc_text); + +#endif // MICROPY_INCLUDED_PY_PERSISTENTCODE_H |