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fix(core): presize __main__ module to avoid heap fragmentation

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Roman Zeyde 2025-03-31 10:46:48 +03:00 committed by Roman Zeyde
parent 101d584aa4
commit ec87d2d21d
3 changed files with 4 additions and 0 deletions
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1
core/embed/projects/firmware/mpconfigport.h
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@ -41,6 +41,7 @@
#define MICROPY_ALLOC_PATH_MAX (128) #define MICROPY_ALLOC_PATH_MAX (128)
#define MICROPY_ENABLE_PYSTACK (1) #define MICROPY_ENABLE_PYSTACK (1)
#define MICROPY_LOADED_MODULES_DICT_SIZE (160) #define MICROPY_LOADED_MODULES_DICT_SIZE (160)
#define MICROPY_MAIN_DICT_SIZE (8)
// emitters // emitters
#define MICROPY_PERSISTENT_CODE_LOAD (0) #define MICROPY_PERSISTENT_CODE_LOAD (0)

1
core/embed/projects/unix/mpconfigport.h
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@ -46,6 +46,7 @@
#define MICROPY_MEM_STATS (1) #define MICROPY_MEM_STATS (1)
#define MICROPY_ENABLE_PYSTACK (1) #define MICROPY_ENABLE_PYSTACK (1)
#define MICROPY_LOADED_MODULES_DICT_SIZE (160) #define MICROPY_LOADED_MODULES_DICT_SIZE (160)
#define MICROPY_MAIN_DICT_SIZE (8)
// emitters // emitters
#define MICROPY_PERSISTENT_CODE_LOAD (0) #define MICROPY_PERSISTENT_CODE_LOAD (0)

2
docs/core/misc/fragmentation.md
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@ -49,6 +49,8 @@ Micropython to preallocate 160 slots in `mpconfigport.h` variable
`trezor.utils`, so if we ever need more modules than that, the test suite _should_ catch `trezor.utils`, so if we ever need more modules than that, the test suite _should_ catch
it. it.
Presizing is also applied to `__main__` module by setting `MICROPY_MAIN_DICT_SIZE`.
## Top-level and function-local imports ## Top-level and function-local imports
In order to keep the imported image size in check, in certain places we avoid importing In order to keep the imported image size in check, in certain places we avoid importing