1import os
2ARCH     = 'risc-v'
3CPU      = 'e310'
4# toolchains options
5CROSS_TOOL  = 'gcc'
6
7#------- toolchains path -------------------------------------------------------
8if os.getenv('RTT_CC'):
9    CROSS_TOOL = os.getenv('RTT_CC')
10
11if  CROSS_TOOL == 'gcc':
12    PLATFORM    = 'gcc'
13    EXEC_PATH   = r'/opt/unknown-gcc/bin'
14else:
15    print('Please make sure your toolchains is GNU GCC!')
16    exit(0)
17
18if os.getenv('RTT_EXEC_PATH'):
19    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
20
21BUILD = 'debug'
22#BUILD = 'release'
23
24CORE = 'risc-v'
25MAP_FILE = 'rtthread.map'
26LINK_FILE = './freedom-e-sdk/bsp/env/freedom-e300-hifive1/flash.lds'
27TARGET_NAME = 'rtthread.bin'
28
29#------- GCC settings ----------------------------------------------------------
30if PLATFORM == 'gcc':
31    # toolchains
32    PREFIX = 'riscv-none-embed-'
33    CC = PREFIX + 'gcc'
34    CXX= PREFIX + 'g++'
35    AS = PREFIX + 'gcc'
36    AR = PREFIX + 'ar'
37    LINK = PREFIX + 'gcc'
38    TARGET_EXT = 'elf'
39    SIZE = PREFIX + 'size'
40    OBJDUMP = PREFIX + 'objdump'
41    OBJCPY = PREFIX + 'objcopy'
42
43    DEVICE = ' -march=rv32imac -mabi=ilp32 -DUSE_PLIC -DUSE_M_TIME -DNO_INIT -mcmodel=medany -msmall-data-limit=8 -L.  -nostartfiles  -lc '
44    CFLAGS = DEVICE
45    CFLAGS += ' -save-temps=obj'
46    AFLAGS = '-c'+ DEVICE + ' -x assembler-with-cpp'
47    AFLAGS += ' -Iplatform -Ifreedom-e-sdk/bsp/include -Ifreedom-e-sdk/bsp/env'
48    LFLAGS = DEVICE
49    LFLAGS += ' -Wl,--gc-sections,-cref,-Map=' + MAP_FILE
50    LFLAGS += ' -T ' + LINK_FILE
51    LFLAGS += ' -Wl,-wrap=memset'
52
53    CPATH = ''
54    LPATH = ''
55
56    if BUILD == 'debug':
57        CFLAGS += ' -O0 -g3'
58        AFLAGS += ' -g3'
59    else:
60        CFLAGS += ' -O2'
61
62    POST_ACTION = OBJCPY + ' -O binary $TARGET ' + TARGET_NAME + '\n'
63    POST_ACTION += SIZE + ' $TARGET\n'
64