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df8127a17e
Attempt to address issue #386. unique_code_id's have been removed and replaced with a pointer to the "raw code" information. This pointer is stored in the actual byte code (aligned, so the GC can trace it), so that raw code (ie byte code, native code and inline assembler) is kept only for as long as it is needed. In memory it's now like a tree: the outer module's byte code points directly to its children's raw code. So when the outer code gets freed, if there are no remaining functions that need the raw code, then the children's code gets freed as well. This is pretty much like CPython does it, except that CPython stores indexes in the byte code rather than machine pointers. These indices index the per-function constant table in order to find the relevant code.
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
// These variables and functions glue the code emitters to the runtime.
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typedef enum {
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MP_CODE_UNUSED,
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MP_CODE_RESERVED,
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MP_CODE_BYTE,
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MP_CODE_NATIVE,
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MP_CODE_INLINE_ASM,
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} mp_raw_code_kind_t;
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typedef struct _mp_code_t {
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mp_raw_code_kind_t kind : 8;
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uint scope_flags : 8;
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uint n_args : 16;
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union {
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struct {
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byte *code;
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uint len;
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} u_byte;
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struct {
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mp_fun_t fun;
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} u_native;
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struct {
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void *fun;
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} u_inline_asm;
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};
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qstr *arg_names;
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} mp_raw_code_t;
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void mp_emit_glue_init(void);
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void mp_emit_glue_deinit(void);
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mp_raw_code_t *mp_emit_glue_new_raw_code(void);
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void mp_emit_glue_assign_byte_code(mp_raw_code_t *rc, byte *code, uint len, int n_args, int n_locals, uint scope_flags, qstr *arg_names);
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void mp_emit_glue_assign_native_code(mp_raw_code_t *rc, void *f, uint len, int n_args);
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void mp_emit_glue_assign_inline_asm_code(mp_raw_code_t *rc, void *f, uint len, int n_args);
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mp_obj_t mp_make_function_from_raw_code(mp_raw_code_t *rc, mp_obj_t def_args, mp_obj_t def_kw_args);
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mp_obj_t mp_make_closure_from_raw_code(mp_raw_code_t *rc, mp_obj_t closure_tuple, mp_obj_t def_args, mp_obj_t def_kw_args);
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