bsp: add basic configure files for abstract-machine

bsp/abstract-machine/rtconfig.py

@@ -0,0 +1,54 @@
+import os
+
+# toolchains options
+ARCH        ='risc-v'
+CPU         ='virt64'
+CROSS_TOOL  ='gcc'
+
+RTT_ROOT = os.getenv('RTT_ROOT') or os.path.join(os.getcwd(), '..', '..')
+
+if os.getenv('RTT_CC'):
+    CROSS_TOOL = os.getenv('RTT_CC')
+
+if  CROSS_TOOL == 'gcc':
+    PLATFORM    = 'gcc'
+    EXEC_PATH   = r'/usr/bin'
+else:
+    print('Please make sure your toolchains is GNU GCC!')
+    exit(0)
+
+if os.getenv('RTT_EXEC_PATH'):
+    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+
+BUILD = 'debug'
+
+if PLATFORM == 'gcc':
+    # toolchains
+    PREFIX  = os.getenv('RTT_CC_PREFIX') or 'riscv64-linux-gnu-'
+    CC      = PREFIX + 'gcc'
+    CXX     = PREFIX + 'g++'
+    AS      = PREFIX + 'gcc'
+    AR      = PREFIX + 'ar'
+    LINK    = PREFIX + 'gcc'
+    TARGET_EXT = 'elf'
+    SIZE    = PREFIX + 'size'
+    OBJDUMP = PREFIX + 'objdump'
+    OBJCPY  = PREFIX + 'objcopy'
+
+    DEVICE  = ' -mcmodel=medany -march=rv64imac -mabi=lp64 '
+    CFLAGS  = DEVICE + '-ffreestanding -flax-vector-conversions -Wno-cpp -fno-common -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -fdiagnostics-color=always'
+    AFLAGS  = ' -c' + DEVICE + ' -x assembler-with-cpp -D__ASSEMBLY__ '
+    LFLAGS  = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T link.lds' + ' -lgcc -static'
+    CPATH   = ''
+    LPATH   = ''
+
+    if BUILD == 'debug':
+        CFLAGS += ' -O0 -ggdb -fvar-tracking '
+        AFLAGS += ' -ggdb'
+    else:
+        CFLAGS += ' -O2 -Os'
+
+    CXXFLAGS = CFLAGS
+
+DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtthread.asm\n'
+POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'