1import os
2
3# toolchains options
4ARCH        ='aarch64'
5CPU         ='cortex-a'
6CROSS_TOOL  ='gcc'
7
8if os.getenv('RTT_ROOT'):
9    RTT_ROOT = os.getenv('RTT_ROOT')
10else:
11    RTT_ROOT = os.path.join(os.getcwd(), '..', '..', '..')
12
13if os.getenv('RTT_CC'):
14    CROSS_TOOL = os.getenv('RTT_CC')
15
16PLATFORM    = 'gcc'
17EXEC_PATH   = r'/opt/gcc-arm-8.3-2019.03-x86_64-aarch64-elf/bin/'
18
19if os.getenv('RTT_EXEC_PATH'):
20    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
21
22BUILD = 'debug'
23
24if PLATFORM == 'gcc':
25    # toolchains
26    PREFIX  = os.getenv('RTT_CC_PREFIX') or 'aarch64-none-elf-'
27    CC      = PREFIX + 'gcc'
28    CXX     = PREFIX + 'g++'
29    AS      = PREFIX + 'gcc'
30    AR      = PREFIX + 'ar'
31    LINK    = PREFIX + 'gcc'
32    TARGET_EXT = 'elf'
33    SIZE    = PREFIX + 'size'
34    OBJDUMP = PREFIX + 'objdump'
35    OBJCPY  = PREFIX + 'objcopy'
36
37    DEVICE = ' -g -march=armv8-a -mtune=cortex-a53'
38    CFLAGS = DEVICE + ' -Wall -Wno-cpp'
39    AFLAGS = ' -c' + ' -x assembler-with-cpp -D__ASSEMBLY__'
40    LFLAGS  = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds'
41    CPATH   = ''
42    LPATH   = ''
43
44    if BUILD == 'debug':
45        CFLAGS += ' -O0 -gdwarf-2'
46        AFLAGS += ' -gdwarf-2'
47    else:
48        CFLAGS += ' -O2'
49
50    CXXFLAGS = CFLAGS
51
52DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
53POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
54