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py: Allow to stat and import frozen mpy files using new frozen "VFS".

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Freezing mpy files using mpy-tool.py now works again.
This commit is contained in:
Damien George 2016-05-23 12:42:23 +01:00
parent 3e33aeb0db
commit 274952a117
2 changed files with 73 additions and 38 deletions
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56
py/builtinimport.c
View File

@ -63,7 +63,7 @@ bool mp_obj_is_package(mp_obj_t module) {
// Stat either frozen or normal module by a given path
// (whatever is available, if at all).
STATIC mp_import_stat_t mp_import_stat_any(const char *path) {
#if MICROPY_MODULE_FROZEN_STR
#if MICROPY_MODULE_FROZEN
mp_import_stat_t st = mp_frozen_stat(path);
if (st != MP_IMPORT_STAT_NO_EXIST) {
return st;
@ -194,10 +194,37 @@ STATIC void do_execute_raw_code(mp_obj_t module_obj, mp_raw_code_t *raw_code) {
#endif
STATIC void do_load(mp_obj_t module_obj, vstr_t *file) {
#if MICROPY_PERSISTENT_CODE_LOAD || MICROPY_ENABLE_COMPILER
#if MICROPY_MODULE_FROZEN || MICROPY_PERSISTENT_CODE_LOAD || MICROPY_ENABLE_COMPILER
char *file_str = vstr_null_terminated_str(file);
#endif
// If we support frozen modules (either as str or mpy) then try to find the
// requested filename in the list of frozen module filenames.
#if MICROPY_MODULE_FROZEN
void *modref;
int frozen_type = mp_find_frozen_module(file_str, file->len, &modref);
#endif
// If we support frozen str modules and the compiler is enabled, and we
// found the filename in the list of frozen files, then load and execute it.
#if MICROPY_MODULE_FROZEN_STR
if (frozen_type == MP_FROZEN_STR) {
do_load_from_lexer(module_obj, modref, file_str);
return;
}
#endif
// If we support frozen mpy modules and we found a corresponding file (and
// its data) in the list of frozen files, execute it.
#if MICROPY_MODULE_FROZEN_MPY
if (frozen_type == MP_FROZEN_MPY) {
do_execute_raw_code(module_obj, modref);
return;
}
#endif
// If we support loading .mpy files then check if the file extension is of
// the correct format and, if so, load and execute the file.
#if MICROPY_PERSISTENT_CODE_LOAD
if (file_str[file->len - 3] == 'm') {
mp_raw_code_t *raw_code = mp_raw_code_load_file(file_str);
@ -206,29 +233,18 @@ STATIC void do_load(mp_obj_t module_obj, vstr_t *file) {
}
#endif
// If we can compile scripts then load the file and compile and execute it.
#if MICROPY_ENABLE_COMPILER
{
void *modref;
#if MICROPY_MODULE_FROZEN
int frozen_type = mp_find_frozen_module(file_str, file->len, &modref);
#else
int frozen_type = MP_FROZEN_NONE;
#endif
#if MICROPY_PERSISTENT_CODE_LOAD || MICROPY_MODULE_FROZEN_MPY
if (frozen_type == MP_FROZEN_MPY) {
do_execute_raw_code(module_obj, modref);
return;
}
#endif
if (frozen_type == MP_FROZEN_NONE) {
modref = mp_lexer_new_from_file(file_str);
}
do_load_from_lexer(module_obj, modref, file_str);
mp_lexer_t *lex = mp_lexer_new_from_file(file_str);
do_load_from_lexer(module_obj, lex, file_str);
return;
}
#else
#endif
// If we get here then the file was not frozen and we can't compile scripts.
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ImportError,
"script compilation not supported"));
#endif
}
STATIC void chop_component(const char *start, const char **end) {

55
py/frozenmod.c
View File

@ -43,24 +43,6 @@ extern const char mp_frozen_str_names[];
extern const uint32_t mp_frozen_str_sizes[];
extern const char mp_frozen_str_content[];
mp_import_stat_t mp_frozen_stat(const char *str) {
size_t len = strlen(str);
const char *name = mp_frozen_str_names;
for (int i = 0; *name != 0; i++) {
size_t l = strlen(name);
if (l >= len && !memcmp(str, name, len)) {
if (name[len] == 0) {
return MP_IMPORT_STAT_FILE;
} else if (name[len] == '/') {
return MP_IMPORT_STAT_DIR;
}
}
name += l + 1;
}
return MP_IMPORT_STAT_NO_EXIST;
}
STATIC mp_lexer_t *mp_find_frozen_str(const char *str, size_t len) {
const char *name = mp_frozen_str_names;
@ -103,6 +85,43 @@ STATIC const mp_raw_code_t *mp_find_frozen_mpy(const char *str, size_t len) {
#if MICROPY_MODULE_FROZEN
STATIC mp_import_stat_t mp_frozen_stat_helper(const char *name, const char *str) {
size_t len = strlen(str);
for (int i = 0; *name != 0; i++) {
size_t l = strlen(name);
if (l >= len && !memcmp(str, name, len)) {
if (name[len] == 0) {
return MP_IMPORT_STAT_FILE;
} else if (name[len] == '/') {
return MP_IMPORT_STAT_DIR;
}
}
name += l + 1;
}
return MP_IMPORT_STAT_NO_EXIST;
}
mp_import_stat_t mp_frozen_stat(const char *str) {
mp_import_stat_t stat;
#if MICROPY_MODULE_FROZEN_STR
stat = mp_frozen_stat_helper(mp_frozen_str_names, str);
if (stat != MP_IMPORT_STAT_NO_EXIST) {
return stat;
}
#endif
#if MICROPY_MODULE_FROZEN_MPY
stat = mp_frozen_stat_helper(mp_frozen_mpy_names, str);
if (stat != MP_IMPORT_STAT_NO_EXIST) {
return stat;
}
#endif
return MP_IMPORT_STAT_NO_EXIST;
}
int mp_find_frozen_module(const char *str, size_t len, void **data) {
#if MICROPY_MODULE_FROZEN_STR
mp_lexer_t *lex = mp_find_frozen_str(str, len);