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py/emitglue: Always flush caches when assigning native ARM code.

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Prior to this commit, cache flushing for ARM native code was done only in
the assembler code asm_thumb_end_pass()/asm_arm_end_pass(), at the last
pass of the assembler.  But this misses flushing the cache when loading
native code from an .mpy file, ie in persistentcode.c.

The change here makes sure the cache is always flushed/cleaned/invalidated
when assigning native code on ARM architectures.

This problem was found running tests/micropython/import_mpy_native_gc.py on
the mimxrt port.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2021-06-04 01:17:09 +10:00
parent fad0efdcf2
commit a70a4e6688
5 changed files with 31 additions and 36 deletions
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4
py/asmthumb.h
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@@ -70,7 +70,9 @@ typedef struct _asm_thumb_t {
uint32_t stack_adjust;
} asm_thumb_t;
void asm_thumb_end_pass(asm_thumb_t *as);
static inline void asm_thumb_end_pass(asm_thumb_t *as) {
(void)as;
}
void asm_thumb_entry(asm_thumb_t *as, int num_locals);
void asm_thumb_exit(asm_thumb_t *as);