1import os
2
3# toolchains options
4ARCH        ='armv8-a'
5CPU         ='cortex-a53'
6CROSS_TOOL  ='gcc'
7
8if os.getenv('RTT_ROOT'):
9    RTT_ROOT = os.getenv('RTT_ROOT')
10else:
11    RTT_ROOT = r'../../..'
12
13if os.getenv('RTT_CC'):
14    CROSS_TOOL = os.getenv('RTT_CC')
15
16PLATFORM    = 'gcc'
17EXEC_PATH   = r'/usr/bin'
18if os.getenv('RTT_EXEC_PATH'):
19    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
20
21BUILD = 'debug'
22
23if PLATFORM == 'gcc':
24    # toolchains
25    PREFIX = 'arm-none-eabi-'
26    CC      = PREFIX + 'gcc'
27    CXX     = PREFIX + 'g++'
28    AS      = PREFIX + 'gcc'
29    AR      = PREFIX + 'ar'
30    LINK    = PREFIX + 'gcc'
31    TARGET_EXT = 'elf'
32    SIZE    = PREFIX + 'size'
33    OBJDUMP = PREFIX + 'objdump'
34    OBJCPY  = PREFIX + 'objcopy'
35
36    DEVICE = ' -mfloat-abi=softfp -march=armv8-a -mtune=cortex-a53 -ftree-vectorize -ffast-math'
37    CFLAGS = DEVICE + ' -Wall'
38    AFLAGS = ' -c' + ' -march=armv8-a -x assembler-with-cpp -D__ASSEMBLY__'
39    LFLAGS  = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds'
40    CPATH   = ''
41    LPATH   = ''
42
43    if BUILD == 'debug':
44        CFLAGS += ' -O0 -gdwarf-2'
45        AFLAGS += ' -gdwarf-2'
46    else:
47        CFLAGS += ' -O2'
48
49    CXXFLAGS = CFLAGS
50
51DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
52POST_ACTION = OBJCPY + ' -O binary $TARGET kernel7.img\n' + SIZE + ' $TARGET \n'
53