temp

Author: EcmaXp

src/Makefile

@@ -12,9 +12,7 @@ FIRMWARE = $(BUILD)/firmware
 # include py core make definitions
 include $(TOP)/py/py.mk
 
-# TODO: common CROSS_COMPILE required
-CROSS_COMPILE = /opt/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-
-# CROSS_COMPILE = arm-none-eabi-
+CROSS_COMPILE = arm-none-eabi-
 
 INC += -I.
 INC += -I$(TOP)
@@ -27,7 +25,6 @@ CFLAGS_MCU_m0 = $(CFLAGS_CORTEX_M) -mtune=cortex-m0 -mcpu=cortex-m0 -mfloat-abi=
 CFLAGS = $(INC) -Wall -Werror -std=c99 -nostdlib $(CFLAGS_MCU_m0) $(COPT)
 CFLAGS += -DMP_CONFIGFILE="<mpconfigport.h>"
 CFLAGS += -DMPACK_HAS_CONFIG=1
-CFLAGS += -fno-jump-tables
 
 # when MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE = 1
 MPY_CROSS_FLAGS += -mcache-lookup-bc
@@ -39,6 +36,7 @@ else
 CFLAGS += -Os -DNDEBUG
 endif
 
+
 LDFLAGS = -nostdlib -T openpie.ld -Map=$@.map --cref
 LIBS = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
 

src/build.py

@@ -1,16 +1,12 @@
-import os
-import sys
-import time
+import shutil
 import traceback
-from collections import Container
 from pathlib import Path
 from subprocess import check_call, DEVNULL, CalledProcessError
-from typing import TypeVar, Generic
+from typing import TypeVar, Generic, Container
 
 from dataclasses import dataclass
 from elftools.elf.elffile import ELFFile
 from elftools.elf.sections import SymbolTableSection, Section, Symbol
-import shutil
 
 FOLDER = Path(__file__).parent
 OPMOD_PATH = FOLDER.parent / "opmod"

src/machine.c

@@ -32,13 +32,17 @@ void Reset_Handler(void) {
     __asm volatile ("mov sp, r1");
 
     // copy .data section from flash to RAM
-    for (uint32_t *src = &_sidata, *dest = &_sdata; dest < &_edata;) {
-        *dest++ = *src++;
+    if (__syscall3(SYS_CONTROL_INIT_COPY, (int) &_sidata, (int) &_sdata, (int) &_edata) == 0) {
+        for (uint32_t *src = &_sidata, *dest = &_sdata; dest < &_edata;) {
+            *dest++ = *src++;
+        }
     }
 
     // zero out .bss section
-    for (uint32_t *dest = &_sbss; dest < &_ebss;) {
-        *dest++ = 0;
+    if (__syscall2(SYS_CONTROL_INIT_ZERO, (int) &_sbss, (int) &_ebss) == 0) {
+        for (uint32_t *dest = &_sbss; dest < &_ebss;) {
+            *dest++ = 0;
+        }
     }
 
     // OPENPIE_CONTROLLER->PENDING = (uint32_t) &MP_STATE_VM(mp_pending_exception);

src/main.c

@@ -67,6 +67,9 @@ int main(int argc, char **argv) {
         mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_));
         mp_obj_list_init(mp_sys_argv, 0);
 
+        do_str("from pystone import main; main(2000)", MP_PARSE_FILE_INPUT);
+        __syscall0(0xDEADBEEF);
+
         do_frozen("bios.py");
 
         for (;;) {

src/modules/bios.py

@@ -24,7 +24,6 @@ def get_component(t):
 
 
 filesystems = components("filesystem")
-print(filesystems)
 def check_bootable(address):
     return address and address in filesystems and invoke(address, 'exists', init)
 
@@ -44,7 +43,6 @@ def load(address):
     content = b"".join(buffer)
     return content.decode()
 
-
 def main():
     address = invoke(__path__, 'getData').decode()
     if not check_bootable(address):

src/openpie.ld

@@ -5,7 +5,7 @@
 /* Specify the memory areas */
 MEMORY
 {
-    FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 256K
+    FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 512K
     SRAM (rw)       : ORIGIN = 0x20000000, LENGTH = 64K
     RAM (rw)        : ORIGIN = 0x60000000, LENGTH = 192K
 }

src/syscall_table.h

@@ -5,6 +5,8 @@
 #define SYS_CONTROL_REBOOT (SYS_CONTROL | 2)
 #define SYS_CONTROL_CRASH (SYS_CONTROL | 3)
 #define SYS_CONTROL_RETURN (SYS_CONTROL | 4)
+#define SYS_CONTROL_INIT_COPY (SYS_CONTROL | 16)
+#define SYS_CONTROL_INIT_ZERO (SYS_CONTROL | 17)
 
 #define SYS_SIGNAL (0x030000)
 #define SYS_SIGNAL_REQUEST (SYS_SIGNAL | 1)