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py/persistentcode: Add architecture flags check for RV32 platforms.

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This commit introduces the MPY architecture flags checking code specific
for the RV32 target, currently checking for the only additional
extension that is supported by the runtime: Zba.

The warnings inside "mpy-cross" have also been removed since now there
is a way to reject incompatible MPY files at runtime.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
This commit is contained in:
Alessandro Gatti
2025-09-23 22:52:44 +02:00
parent a6bc1ccbe5
commit 64971f1a65
4 changed files with 39 additions and 9 deletions
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19
py/persistentcode.c
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@@ -63,6 +63,10 @@ typedef struct _bytecode_prelude_t {
uint code_info_size;
} bytecode_prelude_t;
#if MICROPY_EMIT_RV32
#include "py/asmrv32.h"
#endif
#endif // MICROPY_PERSISTENT_CODE_LOAD || MICROPY_PERSISTENT_CODE_SAVE
#if MICROPY_PERSISTENT_CODE_LOAD
@@ -485,8 +489,19 @@ void mp_raw_code_load(mp_reader_t *reader, mp_compiled_module_t *cm) {
size_t arch_flags = 0;
if (MPY_FEATURE_ARCH_FLAGS_TEST(header[2])) {
(void)arch_flags;
mp_raise_ValueError(MP_ERROR_TEXT("incompatible .mpy file"));
#if MICROPY_EMIT_RV32
arch_flags = read_uint(reader);
if (MPY_FEATURE_ARCH_TEST(MP_NATIVE_ARCH_RV32IMC)) {
if ((arch_flags & (size_t)asm_rv32_allowed_extensions()) != arch_flags) {
mp_raise_ValueError(MP_ERROR_TEXT("incompatible .mpy file"));
}
} else
#endif
{
(void)arch_flags;
mp_raise_ValueError(MP_ERROR_TEXT("incompatible .mpy file"));
}
}
size_t n_qstr = read_uint(reader);