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py/emitglue: Provide a truncated mp_raw_code_t for non-asm code.

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The `asm_n_pos_args` and `asm_type_sig` members of `mp_raw_code_t` are only
used for raw codes of type MP_CODE_NATIVE_ASM, which are rare, for example
in frozen code.  So using a truncated `mp_raw_code_t` in these cases helps
to reduce frozen code size on targets that have MICROPY_EMIT_INLINE_ASM
enabled.

With this, change in firmware size of RPI_PICO builds is -648.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2024-02-09 13:25:58 +11:00
parent 39bf055d23
commit 416465d81e
3 changed files with 35 additions and 9 deletions
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17
tools/mpy-tool.py
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@@ -683,7 +683,7 @@ class CompiledModule:
else:
print(" .obj_table = NULL,")
print(" },")
print(" .rc = &raw_code_%s," % self.raw_code.escaped_name)
print(" .rc = (const mp_raw_code_t *)&raw_code_%s," % self.raw_code.escaped_name)
print("};")
def freeze_constant_obj(self, obj_name, obj):
@@ -898,7 +898,7 @@ class RawCode(object):
print()
print("static const mp_raw_code_t *const children_%s[] = {" % self.escaped_name)
for rc in self.children:
print(" &raw_code_%s," % rc.escaped_name)
print(" (const mp_raw_code_t *)&raw_code_%s," % rc.escaped_name)
if prelude_ptr:
print(" (void *)%s," % prelude_ptr)
print("};")
@@ -906,7 +906,11 @@ class RawCode(object):
def freeze_raw_code(self, prelude_ptr=None, type_sig=0):
# Generate mp_raw_code_t.
print("static const mp_raw_code_t raw_code_%s = {" % self.escaped_name)
if self.code_kind == MP_CODE_NATIVE_ASM:
raw_code_type = "mp_raw_code_t"
else:
raw_code_type = "mp_raw_code_truncated_t"
print("static const %s raw_code_%s = {" % (raw_code_type, self.escaped_name))
print(" .kind = %s," % RawCode.code_kind_str[self.code_kind])
print(" .scope_flags = 0x%02x," % self.scope_flags)
print(" .fun_data = fun_data_%s," % self.escaped_name)
@@ -949,10 +953,9 @@ class RawCode(object):
print(" },")
print(" #endif")
print(" #endif")
print(" #if MICROPY_EMIT_INLINE_ASM")
print(" .asm_n_pos_args = %u," % self.n_pos_args)
print(" .asm_type_sig = %u," % type_sig)
print(" #endif")
if self.code_kind == MP_CODE_NATIVE_ASM:
print(" .asm_n_pos_args = %u," % self.n_pos_args)
print(" .asm_type_sig = %u," % type_sig)
print("};")
global raw_code_count, raw_code_content