py/persistentcode: Remove remaining native qstr linking support.
Support for architecture-specific qstr linking was removed ind4d53e9e11, where native code was changed to access qstr values via qstr_table. The only remaining use for the special qstr link table in persistentcode.c is to support native module written in C, linked via mpy_ld.py. But native modules can also use the standard module-level qstr_table (and obj_table) which was introduced in the .mpy file reworking inf2040bfc7e. This commit removes the remaining native qstr liking support in persistentcode.c's load_raw_code function, and adds two new relocation options for constants.qstr_table and constants.obj_table. mpy_ld.py is updated to use these relocations options instead of the native qstr link table. Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
parent
2111ca0b8f
commit
b37b578214
@ -71,6 +71,7 @@ STATIC size_t read_uint(mp_reader_t *reader);
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typedef struct _reloc_info_t {
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mp_reader_t *reader;
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mp_module_context_t *context;
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uint8_t *rodata;
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uint8_t *bss;
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} reloc_info_t;
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@ -112,11 +113,17 @@ void mp_native_relocate(void *ri_in, uint8_t *text, uintptr_t reloc_text) {
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dest = (uintptr_t)ri->bss;
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}
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} else if (op == 6) {
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// Destination is qstr_table
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dest = (uintptr_t)ri->context->constants.qstr_table;
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} else if (op == 7) {
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// Destination is obj_table
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dest = (uintptr_t)ri->context->constants.obj_table;
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} else if (op == 8) {
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// Destination is mp_fun_table itself
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dest = (uintptr_t)&mp_fun_table;
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} else {
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// Destination is an entry in mp_fun_table
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dest = ((uintptr_t *)&mp_fun_table)[op - 7];
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dest = ((uintptr_t *)&mp_fun_table)[op - 9];
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}
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while (n--) {
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*addr_to_adjust++ += dest;
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@ -205,7 +212,7 @@ STATIC mp_obj_t load_obj(mp_reader_t *reader) {
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}
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}
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STATIC mp_raw_code_t *load_raw_code(mp_reader_t *reader) {
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STATIC mp_raw_code_t *load_raw_code(mp_reader_t *reader, mp_module_context_t *context) {
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// Load function kind and data length
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size_t kind_len = read_uint(reader);
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int kind = (kind_len & 3) + MP_CODE_BYTECODE;
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@ -239,24 +246,6 @@ STATIC mp_raw_code_t *load_raw_code(mp_reader_t *reader) {
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MP_PLAT_ALLOC_EXEC(fun_data_len, (void **)&fun_data, &fun_alloc);
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read_bytes(reader, fun_data, fun_data_len);
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if (kind == MP_CODE_NATIVE_PY || kind == MP_CODE_NATIVE_VIPER) {
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// Parse qstr link table and link native code
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size_t n_qstr_link = read_uint(reader);
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for (size_t i = 0; i < n_qstr_link; ++i) {
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size_t off = read_uint(reader);
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qstr qst = load_qstr(reader);
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uint8_t *dest = fun_data + (off >> 2);
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if ((off & 3) == 0) {
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// Generic 16-bit link
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dest[0] = qst & 0xff;
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dest[1] = (qst >> 8) & 0xff;
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} else if ((off & 3) == 3) {
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// Generic, aligned qstr-object link
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*(mp_obj_t *)dest = MP_OBJ_NEW_QSTR(qst);
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}
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}
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}
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if (kind == MP_CODE_NATIVE_PY) {
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// Read prelude offset within fun_data, and extract scope flags.
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prelude_offset = read_uint(reader);
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@ -315,7 +304,7 @@ STATIC mp_raw_code_t *load_raw_code(mp_reader_t *reader) {
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n_children = read_uint(reader);
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children = m_new(mp_raw_code_t *, n_children + (kind == MP_CODE_NATIVE_PY));
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for (size_t i = 0; i < n_children; ++i) {
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children[i] = load_raw_code(reader);
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children[i] = load_raw_code(reader, context);
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}
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}
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@ -349,7 +338,7 @@ STATIC mp_raw_code_t *load_raw_code(mp_reader_t *reader) {
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#endif
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// Relocate and commit code to executable address space
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reloc_info_t ri = {reader, rodata, bss};
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reloc_info_t ri = {reader, context, rodata, bss};
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#if defined(MP_PLAT_COMMIT_EXEC)
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void *opt_ri = (native_scope_flags & MP_SCOPE_FLAG_VIPERRELOC) ? &ri : NULL;
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fun_data = MP_PLAT_COMMIT_EXEC(fun_data, fun_data_len, opt_ri);
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@ -429,7 +418,7 @@ mp_compiled_module_t mp_raw_code_load(mp_reader_t *reader, mp_module_context_t *
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// Load top-level module.
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mp_compiled_module_t cm2;
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cm2.rc = load_raw_code(reader);
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cm2.rc = load_raw_code(reader, context);
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cm2.context = context;
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#if MICROPY_PERSISTENT_CODE_SAVE
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@ -567,11 +556,6 @@ STATIC void save_raw_code(mp_print_t *print, const mp_raw_code_t *rc) {
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mp_print_bytes(print, rc->fun_data, rc->fun_data_len);
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#if MICROPY_EMIT_MACHINE_CODE
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if (rc->kind == MP_CODE_NATIVE_PY || rc->kind == MP_CODE_NATIVE_VIPER) {
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// Save qstr link table for native code
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mp_print_uint(print, 0);
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}
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if (rc->kind == MP_CODE_NATIVE_PY) {
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// Save prelude size
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mp_print_uint(print, rc->prelude_offset);
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@ -74,9 +74,7 @@ user_files = {
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b'\x02' # 2 children
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b'\x42' # 8 bytes, no children, viper code
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b'\x00\x00\x00\x00\x00\x00' # dummy machine code
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b'\x00\x00' # slot for qstr0
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b'\x01\x0c\x0aprint\x00' # n_qstr=1, qstr0
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b'\x00\x00\x00\x00\x00\x00\x00\x00' # dummy machine code
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b'\x00' # scope_flags
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b'\x43' # 8 bytes, no children, asm code
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@ -102,7 +100,6 @@ user_files = {
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b'\x22' # 4 bytes, no children, viper code
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b'\x00\x00\x00\x00' # dummy machine code
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b'\x00' # n_qstr=0
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b'\x70' # scope_flags: VIPERBSS | VIPERRODATA | VIPERRELOC
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b'\x06\x04' # rodata=6 bytes, bss=4 bytes
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b'rodata' # rodata content
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@ -49,9 +49,9 @@ class UserFS:
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# by the required value of sys.implementation._mpy.
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features0_file_contents = {
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# -march=x64
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0x806: b'M\x06\b\x1f\x01\x004build/features0.native.mpy\x00\x8aB\xe9/\x00\x00\x00SH\x8b\x1d\x83\x00\x00\x00\xbe\x02\x00\x00\x00\xffS\x18\xbf\x01\x00\x00\x00H\x85\xc0u\x0cH\x8bC \xbe\x02\x00\x00\x00[\xff\xe0H\x0f\xaf\xf8H\xff\xc8\xeb\xe6ATUSH\x8b\x1dQ\x00\x00\x00H\x8bG\x08L\x8bc(H\x8bx\x08A\xff\xd4H\x8d5+\x00\x00\x00H\x89\xc5H\x8b\x059\x00\x00\x00\x0f\xb78\xffShH\x89\xefA\xff\xd4H\x8b\x03[]A\\\xc3\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x85\x00\x12factorial\x00\x10\r$\x01&\x9f \x01"\xff',
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0x806: b'M\x06\x08\x1f\x02\x004build/features0.native.mpy\x00\x12factorial\x00\x8a\x02\xe9/\x00\x00\x00SH\x8b\x1d\x83\x00\x00\x00\xbe\x02\x00\x00\x00\xffS\x18\xbf\x01\x00\x00\x00H\x85\xc0u\x0cH\x8bC \xbe\x02\x00\x00\x00[\xff\xe0H\x0f\xaf\xf8H\xff\xc8\xeb\xe6ATUSH\x8b\x1dQ\x00\x00\x00H\x8bG\x08L\x8bc(H\x8bx\x08A\xff\xd4H\x8d5+\x00\x00\x00H\x89\xc5H\x8b\x059\x00\x00\x00\x0f\xb7x\x02\xffShH\x89\xefA\xff\xd4H\x8b\x03[]A\\\xc3\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x11$\r&\xa3 \x01"\xff',
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# -march=armv6m
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0x1006: b'M\x06\x10\x1f\x01\x004build/features0.native.mpy\x00\x88"\x18\xe0\x00\x00\x10\xb5\tK\tJ{D\x9cX\x02!\xe3h\x98G\x03\x00\x01 \x00+\x02\xd0XC\x01;\xfa\xe7\x02!#i\x98G\x10\xbd\xc0Fj\x00\x00\x00\x00\x00\x00\x00\xf8\xb5\nN\nK~D\xf4XChgiXh\xb8G\x05\x00\x07K\x08I\xf3XyD\x18\x88ck\x98G(\x00\xb8G h\xf8\xbd\xc0F:\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x1e\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x01\x84\x00\x12factorial\x00\x10\r<\x01>\x9f8\x01:\xff',
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0x1006: b"M\x06\x10\x1f\x02\x004build/features0.native.mpy\x00\x12factorial\x00\x88\x02\x18\xe0\x00\x00\x10\xb5\tK\tJ{D\x9cX\x02!\xe3h\x98G\x03\x00\x01 \x00+\x02\xd0XC\x01;\xfa\xe7\x02!#i\x98G\x10\xbd\xc0Fj\x00\x00\x00\x00\x00\x00\x00\xf8\xb5\nN\nK~D\xf4XChgiXh\xb8G\x05\x00\x07K\x08I\xf3XyDX\x88ck\x98G(\x00\xb8G h\xf8\xbd\xc0F:\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x1e\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x11<\r>\xa38\x01:\xff",
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}
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# Populate armv7m-derived archs based on armv6m.
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@ -976,7 +976,6 @@ class RawCodeNative(RawCode):
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kind,
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fun_data,
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prelude_offset,
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qstr_links,
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scope_flags,
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n_pos_args,
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type_sig,
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@ -989,7 +988,6 @@ class RawCodeNative(RawCode):
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self.scope_flags = scope_flags
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self.n_pos_args = n_pos_args
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self.qstr_links = qstr_links
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self.type_sig = type_sig
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if config.native_arch in (
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MP_NATIVE_ARCH_X86,
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@ -1196,15 +1194,6 @@ def read_raw_code(reader, cm_escaped_name, qstr_table, obj_table, segments):
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rc = RawCodeBytecode(cm_escaped_name, qstr_table, obj_table, fun_data)
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else:
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# Create native raw code.
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qstr_links = []
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if kind in (MP_CODE_NATIVE_PY, MP_CODE_NATIVE_VIPER):
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# Read qstr link table.
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n_qstr_link = reader.read_uint()
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for _ in range(n_qstr_link):
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off = reader.read_uint()
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qst = read_qstr(reader, segments)
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qstr_links.append((off >> 2, off & 3, qst))
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native_scope_flags = 0
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native_n_pos_args = 0
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native_type_sig = 0
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@ -1242,7 +1231,6 @@ def read_raw_code(reader, cm_escaped_name, qstr_table, obj_table, segments):
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kind,
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fun_data,
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prelude_offset,
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qstr_links,
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native_scope_flags,
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native_n_pos_args,
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native_type_sig,
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@ -36,6 +36,8 @@ import makeqstrdata as qstrutil
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# MicroPython constants
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MPY_VERSION = 6
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MP_CODE_BYTECODE = 2
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MP_CODE_NATIVE_VIPER = 4
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MP_NATIVE_ARCH_X86 = 1
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MP_NATIVE_ARCH_X64 = 2
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MP_NATIVE_ARCH_ARMV6M = 4
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@ -44,8 +46,7 @@ MP_NATIVE_ARCH_ARMV7EMSP = 7
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MP_NATIVE_ARCH_ARMV7EMDP = 8
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MP_NATIVE_ARCH_XTENSA = 9
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MP_NATIVE_ARCH_XTENSAWIN = 10
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MP_CODE_BYTECODE = 2
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MP_CODE_NATIVE_VIPER = 4
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MP_PERSISTENT_OBJ_STR = 5
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MP_SCOPE_FLAG_VIPERRELOC = 0x10
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MP_SCOPE_FLAG_VIPERRODATA = 0x20
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MP_SCOPE_FLAG_VIPERBSS = 0x40
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@ -110,21 +111,20 @@ def asm_jump_xtensa(entry):
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class ArchData:
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def __init__(self, name, mpy_feature, qstr_entry_size, word_size, arch_got, asm_jump):
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def __init__(self, name, mpy_feature, word_size, arch_got, asm_jump, *, separate_rodata=False):
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self.name = name
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self.mpy_feature = mpy_feature
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self.qstr_entry_size = qstr_entry_size
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self.qstr_entry_size = 2
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self.word_size = word_size
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self.arch_got = arch_got
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self.asm_jump = asm_jump
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self.separate_rodata = name == "EM_XTENSA" and qstr_entry_size == 4
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self.separate_rodata = separate_rodata
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ARCH_DATA = {
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"x86": ArchData(
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"EM_386",
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MP_NATIVE_ARCH_X86 << 2,
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2,
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4,
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(R_386_PC32, R_386_GOT32, R_386_GOT32X),
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asm_jump_x86,
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@ -132,7 +132,6 @@ ARCH_DATA = {
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"x64": ArchData(
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"EM_X86_64",
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MP_NATIVE_ARCH_X64 << 2,
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2,
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8,
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(R_X86_64_GOTPCREL, R_X86_64_REX_GOTPCRELX),
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asm_jump_x86,
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@ -140,7 +139,6 @@ ARCH_DATA = {
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"armv6m": ArchData(
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"EM_ARM",
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MP_NATIVE_ARCH_ARMV6M << 2,
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2,
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4,
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(R_ARM_GOT_BREL,),
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asm_jump_thumb,
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@ -148,7 +146,6 @@ ARCH_DATA = {
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"armv7m": ArchData(
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"EM_ARM",
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MP_NATIVE_ARCH_ARMV7M << 2,
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2,
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4,
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(R_ARM_GOT_BREL,),
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asm_jump_thumb2,
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@ -156,7 +153,6 @@ ARCH_DATA = {
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"armv7emsp": ArchData(
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"EM_ARM",
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MP_NATIVE_ARCH_ARMV7EMSP << 2,
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2,
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4,
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(R_ARM_GOT_BREL,),
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asm_jump_thumb2,
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@ -164,7 +160,6 @@ ARCH_DATA = {
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"armv7emdp": ArchData(
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"EM_ARM",
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MP_NATIVE_ARCH_ARMV7EMDP << 2,
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2,
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4,
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(R_ARM_GOT_BREL,),
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asm_jump_thumb2,
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@ -172,7 +167,6 @@ ARCH_DATA = {
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"xtensa": ArchData(
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"EM_XTENSA",
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MP_NATIVE_ARCH_XTENSA << 2,
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2,
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4,
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(R_XTENSA_32, R_XTENSA_PLT),
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asm_jump_xtensa,
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@ -181,9 +175,9 @@ ARCH_DATA = {
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"EM_XTENSA",
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MP_NATIVE_ARCH_XTENSAWIN << 2,
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4,
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4,
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(R_XTENSA_32, R_XTENSA_PLT),
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asm_jump_xtensa,
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separate_rodata=True,
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),
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}
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@ -435,8 +429,8 @@ def populate_got(env):
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# Create a relocation for each GOT entry
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for got_entry in got_list:
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if got_entry.name == "mp_fun_table":
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dest = "mp_fun_table"
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if got_entry.name in ("mp_native_qstr_table", "mp_native_obj_table", "mp_fun_table"):
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dest = got_entry.name
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elif got_entry.name.startswith("mp_fun_table+0x"):
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dest = int(got_entry.name.split("+")[1], 16) // env.arch.word_size
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elif got_entry.sec_name.startswith(".text"):
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@ -754,19 +748,19 @@ def link_objects(env, native_qstr_vals_len, native_qstr_objs_len):
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env.lit_section = Section("LIT", bytearray(lit_size), env.arch.word_size)
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env.sections.insert(1, env.lit_section)
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# Create section to contain mp_native_qstr_val_table
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env.qstr_val_section = Section(
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".text.QSTR_VAL",
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# Create section to contain mp_native_qstr_table
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env.qstr_table_section = Section(
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".external.qstr_table",
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bytearray(native_qstr_vals_len * env.arch.qstr_entry_size),
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env.arch.qstr_entry_size,
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)
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env.sections.append(env.qstr_val_section)
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# Create section to contain mp_native_qstr_obj_table
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env.qstr_obj_section = Section(
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".text.QSTR_OBJ", bytearray(native_qstr_objs_len * env.arch.word_size), env.arch.word_size
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# Create section to contain mp_native_obj_table
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env.obj_table_section = Section(
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".external.obj_table",
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bytearray(native_qstr_objs_len * env.arch.word_size),
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env.arch.word_size,
|
||||
)
|
||||
env.sections.append(env.qstr_obj_section)
|
||||
|
||||
# Resolve unknown symbols
|
||||
mp_fun_table_sec = Section(".external.mp_fun_table", b"", 0)
|
||||
@ -796,10 +790,10 @@ def link_objects(env, native_qstr_vals_len, native_qstr_objs_len):
|
||||
pass
|
||||
elif sym.name == "mp_fun_table":
|
||||
sym.section = Section(".external", b"", 0)
|
||||
elif sym.name == "mp_native_qstr_val_table":
|
||||
sym.section = env.qstr_val_section
|
||||
elif sym.name == "mp_native_qstr_obj_table":
|
||||
sym.section = env.qstr_obj_section
|
||||
elif sym.name == "mp_native_qstr_table":
|
||||
sym.section = env.qstr_table_section
|
||||
elif sym.name == "mp_native_obj_table":
|
||||
sym.section = env.obj_table_section
|
||||
elif sym.name in env.known_syms:
|
||||
sym.resolved = env.known_syms[sym.name]
|
||||
else:
|
||||
@ -923,13 +917,21 @@ def build_mpy(env, entry_offset, fmpy, native_qstr_vals, native_qstr_objs):
|
||||
out.write_bytes(bytearray([ord("M"), MPY_VERSION, env.arch.mpy_feature, MP_SMALL_INT_BITS]))
|
||||
|
||||
# MPY: n_qstr
|
||||
out.write_uint(1)
|
||||
out.write_uint(1 + len(native_qstr_vals))
|
||||
|
||||
# MPY: n_obj
|
||||
out.write_uint(0)
|
||||
out.write_uint(len(native_qstr_objs))
|
||||
|
||||
# MPY: qstr table
|
||||
out.write_qstr(fmpy) # filename
|
||||
for q in native_qstr_vals:
|
||||
out.write_qstr(q)
|
||||
|
||||
# MPY: object table
|
||||
for q in native_qstr_objs:
|
||||
out.write_bytes(bytearray([MP_PERSISTENT_OBJ_STR]))
|
||||
out.write_uint(len(q))
|
||||
out.write_bytes(bytes(q, "utf8") + b"\x00")
|
||||
|
||||
# MPY: kind/len
|
||||
out.write_uint(len(env.full_text) << 3 | (MP_CODE_NATIVE_VIPER - MP_CODE_BYTECODE))
|
||||
@ -937,17 +939,6 @@ def build_mpy(env, entry_offset, fmpy, native_qstr_vals, native_qstr_objs):
|
||||
# MPY: machine code
|
||||
out.write_bytes(env.full_text)
|
||||
|
||||
# MPY: n_qstr_link (assumes little endian)
|
||||
out.write_uint(len(native_qstr_vals) + len(native_qstr_objs))
|
||||
for q in range(len(native_qstr_vals)):
|
||||
off = env.qstr_val_section.addr + q * env.arch.qstr_entry_size
|
||||
out.write_uint(off << 2)
|
||||
out.write_qstr(native_qstr_vals[q])
|
||||
for q in range(len(native_qstr_objs)):
|
||||
off = env.qstr_obj_section.addr + q * env.arch.word_size
|
||||
out.write_uint(off << 2 | 3)
|
||||
out.write_qstr(native_qstr_objs[q])
|
||||
|
||||
# MPY: scope_flags
|
||||
scope_flags = MP_SCOPE_FLAG_VIPERRELOC
|
||||
if len(env.full_rodata):
|
||||
@ -978,10 +969,14 @@ def build_mpy(env, entry_offset, fmpy, native_qstr_vals, native_qstr_objs):
|
||||
kind = 0
|
||||
elif isinstance(kind, str) and kind.startswith(".bss"):
|
||||
kind = bss_const_table_idx
|
||||
elif kind == "mp_fun_table":
|
||||
elif kind == "mp_native_qstr_table":
|
||||
kind = 6
|
||||
elif kind == "mp_native_obj_table":
|
||||
kind = 7
|
||||
elif kind == "mp_fun_table":
|
||||
kind = 8
|
||||
else:
|
||||
kind = 7 + kind
|
||||
kind = 9 + kind
|
||||
assert addr % env.arch.word_size == 0, addr
|
||||
offset = addr // env.arch.word_size
|
||||
if kind == prev_kind and base == prev_base and offset == prev_offset + 1:
|
||||
@ -1023,18 +1018,14 @@ def do_preprocess(args):
|
||||
for i, q in enumerate(static_qstrs):
|
||||
print("#define %s (%u)" % (q, i + 1), file=f)
|
||||
for i, q in enumerate(sorted(qstr_vals)):
|
||||
print("#define %s (mp_native_qstr_val_table[%d])" % (q, i), file=f)
|
||||
print("#define %s (mp_native_qstr_table[%d])" % (q, i + 1), file=f)
|
||||
for i, q in enumerate(sorted(qstr_objs)):
|
||||
print(
|
||||
"#define MP_OBJ_NEW_QSTR_%s ((mp_obj_t)mp_native_qstr_obj_table[%d])" % (q, i),
|
||||
"#define MP_OBJ_NEW_QSTR_%s ((mp_obj_t)mp_native_obj_table[%d])" % (q, i),
|
||||
file=f,
|
||||
)
|
||||
if args.arch == "xtensawin":
|
||||
qstr_type = "uint32_t" # esp32 can only read 32-bit values from IRAM
|
||||
else:
|
||||
qstr_type = "uint16_t"
|
||||
print("extern const {} mp_native_qstr_val_table[];".format(qstr_type), file=f)
|
||||
print("extern const mp_uint_t mp_native_qstr_obj_table[];", file=f)
|
||||
print("extern const uint16_t mp_native_qstr_table[];", file=f)
|
||||
print("extern const mp_uint_t mp_native_obj_table[];", file=f)
|
||||
|
||||
|
||||
def do_link(args):
|
||||
|
||||
Loading…
Reference in New Issue
Block a user