Commit cff9f02c authored by Paul Sokolovsky's avatar Paul Sokolovsky
Browse files

zephyr: Initial Zephyr RTOS port, MicroPython part.

parent fa5ac678
#
# This is main Makefile, which uses MicroPython build system, but
# Zephyr arch-specific toolchain (setup by Zephyr's Makefile.toolchain.*).
# Unfortunately, it's currently not possible to get target (as in: specific
# board to run on) specific compile-time options from Zephyr, so these must
# be set (duplicated) in this Makefile. Currently, these configured for
# ARM Cortex-M3. This Makefile builds MicroPython as a library, and then
# calls recursively Makefile.zephyr to build complete application using
# Zephyr build system.
#
ARCH ?= x86
BOARD ?= qemu_x86
# Zephyr 1.5.0
#OUTDIR_PREFIX =
# Zephyr 1.6.0
OUTDIR_PREFIX = $(BOARD)
# Zephyr toolchain config is 2-pass, so included twice
include $(ZEPHYR_BASE)/scripts/Makefile.toolchain.$(ZEPHYR_GCC_VARIANT)
include $(ZEPHYR_BASE)/scripts/Makefile.toolchain.$(ZEPHYR_GCC_VARIANT)
CFLAGS_arm = -mthumb -mcpu=cortex-m3 -mabi=aapcs
CFLAGS_x86 = -fno-asynchronous-unwind-tables -ffreestanding -fno-stack-protector \
-fno-omit-frame-pointer -mpreferred-stack-boundary=2 -mno-sse -march=pentium
CFLAGS_TARGET = $(CFLAGS_$(ARCH))
include ../py/mkenv.mk
include ../py/py.mk
INC += -I.
INC += -I..
INC += -I$(BUILD)
INC += -I$(ZEPHYR_BASE)/include -I$(ZEPHYR_BASE) \
-Ioutdir/$(OUTDIR_PREFIX)/misc/generated/sysgen \
-I$(dir $(Z_AUTOCONF_H))
SRC_C = main.c \
uart_core.c \
lib/utils/stdout_helpers.c \
lib/utils/printf.c \
lib/utils/pyexec.c \
lib/mp-readline/readline.c \
$(SRC_MOD)
OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
COPT = -Os -DNDEBUG -fdata-sections -ffunction-sections
CFLAGS = -std=gnu99 $(TOOLCHAIN_CFLAGS) $(INC) $(CFLAGS_MOD) $(COPT) $(CFLAGS_TARGET)
include ../py/mkrules.mk
all: $(LIBMICROPYTHON)
$(MAKE) -f Makefile.zephyr BOARD=$(BOARD)
qemu: all
$(MAKE) -f Makefile.zephyr qemu BOARD=$(BOARD)
Z_AUTOCONF_H = outdir/$(OUTDIR_PREFIX)/include/generated/autoconf.h
$(LIBMICROPYTHON): $(Z_AUTOCONF_H)
build/genhdr/qstr.i.last: $(Z_AUTOCONF_H)
$(Z_AUTOCONF_H):
rm -f $(LIBMICROPYTHON)
-$(MAKE) -f Makefile.zephyr BOARD=$(BOARD)
# Clean Zephyr things too
CLEAN_EXTRA = outdir
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "py/nlr.h"
#include "py/compile.h"
#include "py/runtime.h"
#include "py/repl.h"
#include "py/gc.h"
#include "lib/utils/pyexec.h"
void do_str(const char *src, mp_parse_input_kind_t input_kind) {
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
if (lex == NULL) {
printf("MemoryError: lexer could not allocate memory\n");
return;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
qstr source_name = lex->source_name;
mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
mp_obj_t module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, true);
mp_call_function_0(module_fun);
nlr_pop();
} else {
// uncaught exception
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
}
}
static char *stack_top;
static char heap[16 * 1024];
int real_main(void) {
int stack_dummy;
stack_top = (char*)&stack_dummy;
#if MICROPY_ENABLE_GC
gc_init(heap, heap + sizeof(heap));
#endif
mp_init();
#if MICROPY_REPL_EVENT_DRIVEN
pyexec_event_repl_init();
for (;;) {
int c = mp_hal_stdin_rx_chr();
if (pyexec_event_repl_process_char(c)) {
break;
}
}
#else
pyexec_friendly_repl();
#endif
//do_str("print('hello world!', list(x+1 for x in range(10)), end='eol\\n')", MP_PARSE_SINGLE_INPUT);
//do_str("for i in range(10):\r\n print(i)", MP_PARSE_FILE_INPUT);
mp_deinit();
return 0;
}
void gc_collect(void) {
// WARNING: This gc_collect implementation doesn't try to get root
// pointers from CPU registers, and thus may function incorrectly.
void *dummy;
gc_collect_start();
gc_collect_root(&dummy, ((mp_uint_t)stack_top - (mp_uint_t)&dummy) / sizeof(mp_uint_t));
gc_collect_end();
gc_dump_info();
}
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
return NULL;
}
mp_import_stat_t mp_import_stat(const char *path) {
return MP_IMPORT_STAT_NO_EXIST;
}
mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
void nlr_jump_fail(void *val) {
}
void NORETURN __fatal_error(const char *msg) {
while (1);
}
#ifndef NDEBUG
void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
__fatal_error("Assertion failed");
}
#endif
#include <alloca.h>
// Saving extra crumbs to make sure binary fits in 128K
#define MICROPY_COMP_CONST_FOLDING (0)
#define MICROPY_COMP_CONST (0)
#define MICROPY_COMP_DOUBLE_TUPLE_ASSIGN (0)
#define MICROPY_ENABLE_GC (1)
#define MICROPY_HELPER_REPL (1)
#define MICROPY_REPL_AUTO_INDENT (1)
#define MICROPY_CPYTHON_COMPAT (0)
#define MICROPY_PY_ASYNC_AWAIT (0)
#define MICROPY_PY_ATTRTUPLE (0)
#define MICROPY_PY_BUILTINS_ENUMERATE (0)
#define MICROPY_PY_BUILTINS_FILTER (0)
#define MICROPY_PY_BUILTINS_MIN_MAX (0)
#define MICROPY_PY_BUILTINS_PROPERTY (0)
#define MICROPY_PY_BUILTINS_RANGE_ATTRS (0)
#define MICROPY_PY_BUILTINS_REVERSED (0)
#define MICROPY_PY_BUILTINS_SET (0)
#define MICROPY_PY_BUILTINS_SLICE (0)
#define MICROPY_PY_ARRAY (0)
#define MICROPY_PY_COLLECTIONS (0)
#define MICROPY_PY_CMATH (0)
#define MICROPY_PY_IO (0)
#define MICROPY_PY_STRUCT (0)
#define MICROPY_PY_SYS_MODULES (0)
#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_LONGLONG)
#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_FLOAT)
#define MICROPY_PY_BUILTINS_COMPLEX (0)
#define MICROPY_HW_BOARD_NAME "zephyr-generic"
#define MICROPY_HW_MCU_NAME "unknown-cpu"
typedef int mp_int_t; // must be pointer size
typedef unsigned mp_uint_t; // must be pointer size
typedef void *machine_ptr_t; // must be of pointer size
typedef const void *machine_const_ptr_t; // must be of pointer size
typedef long mp_off_t;
#define BYTES_PER_WORD (sizeof(mp_int_t))
#define MP_STATE_PORT MP_STATE_VM
#define MICROPY_PORT_ROOT_POINTERS \
const char *readline_hist[8];
// Include Zephyr's autoconf.h, which should be made first by Zephyr makefiles
#include "autoconf.h"
static inline mp_uint_t mp_hal_ticks_ms(void) { return 0; }
static inline void mp_hal_set_interrupt_char(char c) {}
#include <unistd.h>
#include "py/mpconfig.h"
#include "src/zephyr_getchar.h"
// Stopgap
extern void printk(const char*, ...);
/*
* Core UART functions to implement for a port
*/
// Receive single character
int mp_hal_stdin_rx_chr(void) {
return zephyr_getchar();
}
// Send string of given length
void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
while (len--) {
printk("%c", *str++);
}
}
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