1import os
2
3ARCH     = 'risc-v'
4CPU      = 'e310'
5VENDOR   = 'sifive'
6# toolchains options
7CROSS_TOOL  = 'gcc'
8
9#------- toolchains path -------------------------------------------------------
10if os.getenv('RTT_CC'):
11    CROSS_TOOL = os.getenv('RTT_CC')
12
13if  CROSS_TOOL == 'gcc':
14    PLATFORM    = 'gcc'
15    EXEC_PATH   = r'/opt/FreedomStudio/SiFive/riscv64-unknown-elf-gcc-8.3.0-2019.08.0/bin/'
16else:
17    print('Please make sure your toolchains is GNU GCC!')
18    exit(0)
19
20if os.getenv('RTT_EXEC_PATH'):
21    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
22
23BUILD = 'debug'
24#BUILD = 'release'
25
26CORE = 'risc-v'
27MAP_FILE = 'rtthread.map'
28LINK_FILE = './freedom-e-sdk/bsp/env/freedom-e300-hifive1/flash.lds'
29TARGET_NAME = 'rtthread.bin'
30TARGET_NAME_HEX = 'rtthread.hex'
31
32#------- GCC settings ----------------------------------------------------------
33if PLATFORM == 'gcc':
34    # toolchains
35    PREFIX = 'riscv64-unknown-elf-'
36    CC = PREFIX + 'gcc'
37    CXX= PREFIX + 'g++'
38    AS = PREFIX + 'gcc'
39    AR = PREFIX + 'ar'
40    LINK = PREFIX + 'gcc'
41    TARGET_EXT = 'elf'
42    SIZE = PREFIX + 'size'
43    OBJDUMP = PREFIX + 'objdump'
44    OBJCPY = PREFIX + 'objcopy'
45
46    DEVICE = ' -march=rv32imac -mabi=ilp32 -DUSE_PLIC -DUSE_M_TIME -DNO_INIT -mcmodel=medany -msmall-data-limit=8 -L.  -nostartfiles  -lc '
47    CFLAGS = DEVICE
48    CFLAGS += ' -save-temps=obj'
49    AFLAGS = '-c'+ DEVICE + ' -x assembler-with-cpp'
50    AFLAGS += ' -Iplatform -Ifreedom-e-sdk/bsp/include -Ifreedom-e-sdk/bsp/env'
51    LFLAGS = DEVICE
52    LFLAGS += ' -Wl,--gc-sections,-cref,-Map=' + MAP_FILE
53    LFLAGS += ' -T ' + LINK_FILE
54    LFLAGS += ' -Wl,-wrap=memset'
55
56    CPATH = ''
57    LPATH = ''
58
59    if BUILD == 'debug':
60        CFLAGS += ' -O0 -g3'
61        AFLAGS += ' -g3'
62    else:
63        CFLAGS += ' -O2'
64
65    CXXFLAGS = CFLAGS
66
67    POST_ACTION = OBJCPY + ' -O binary $TARGET ' + TARGET_NAME + '\n'
68    POST_ACTION += OBJCPY + ' -O ihex   $TARGET ' + TARGET_NAME_HEX + '\n'
69    #POST_ACTION += OBJCPY + ' -I binary -O ihex ' + TARGET_NAME + ' ' + TARGET_NAME_HEX + '\n'
70    POST_ACTION += SIZE + ' $TARGET\n'
71