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py: Allocate memory for assembled code at start of PASS_EMIT.

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Previously was allocating at end of PASS_COMPUTE, and this pass was
being run twice, so memory was being allocated twice.
This commit is contained in:
Damien George
2015-01-14 00:38:33 +00:00
parent bc47c287df
commit d9dc6fff21
4 changed files with 32 additions and 55 deletions
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17
py/asmx86.c
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@@ -131,21 +131,20 @@ void asm_x86_free(asm_x86_t *as, bool free_code) {
}
void asm_x86_start_pass(asm_x86_t *as, mp_uint_t pass) {
as->pass = pass;
as->code_offset = 0;
if (pass == ASM_X86_PASS_COMPUTE) {
// reset all labels
memset(as->label_offsets, -1, as->max_num_labels * sizeof(mp_uint_t));
}
}
void asm_x86_end_pass(asm_x86_t *as) {
if (as->pass == ASM_X86_PASS_COMPUTE) {
MP_PLAT_ALLOC_EXEC(as->code_offset, (void**) &as->code_base, &as->code_size);
if(as->code_base == NULL) {
} else if (pass == ASM_X86_PASS_EMIT) {
MP_PLAT_ALLOC_EXEC(as->code_offset, (void**)&as->code_base, &as->code_size);
if (as->code_base == NULL) {
assert(0);
}
}
as->pass = pass;
as->code_offset = 0;
}
void asm_x86_end_pass(asm_x86_t *as) {
}
// all functions must go through this one to emit bytes