1import os
2
3# toolchains options
4ARCH        ='arm'
5CPU         ='cortex-a'
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'
18
19BUILD = 'debug'
20
21if os.getenv('RTT_EXEC_PATH'):
22    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
23
24if PLATFORM == 'gcc':
25    # toolchains
26    # PREFIX = 'arm-none-eabi-'
27    PREFIX  = os.getenv('RTT_CC_PREFIX') or 'arm-none-eabi-'
28    CC      = PREFIX + 'gcc'
29    CXX     = PREFIX + 'g++'
30    AS      = PREFIX + 'gcc'
31    AR      = PREFIX + 'ar'
32    LINK    = PREFIX + 'gcc'
33    TARGET_EXT = 'elf'
34    SIZE    = PREFIX + 'size'
35    OBJDUMP = PREFIX + 'objdump'
36    OBJCPY  = PREFIX + 'objcopy'
37
38    DEVICE = ' -march=armv8-a -mtune=cortex-a72'
39    CFLAGS = DEVICE + ' -Wall -Wno-cpp'
40    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -D__ASSEMBLY__'
41    LFLAGS  = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds'
42    CPATH   = ''
43    LPATH   = ''
44
45    if BUILD == 'debug':
46        CFLAGS += ' -O0 -gdwarf-2'
47        AFLAGS += ' -gdwarf-2'
48    else:
49        CFLAGS += ' -O2'
50
51    CXXFLAGS = CFLAGS
52
53DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
54POST_ACTION = OBJCPY + ' -O binary $TARGET kernel7.img\n' + SIZE + ' $TARGET \n'
55