1import os
2
3# toolchains options
4ARCH        ='arm'
5CPU         ='cortex-a'
6CROSS_TOOL  = 'gcc'
7PLATFORM    = 'gcc'
8EXEC_PATH   = os.getenv('RTT_EXEC_PATH') or r'/usr/bin'
9BUILD       = 'debug'
10
11LINK_SCRIPT = 'link.lds'
12
13if PLATFORM == 'gcc':
14    PREFIX  = os.getenv('RTT_CC_PREFIX') or 'arm-none-eabi-'
15    CC      = PREFIX + 'gcc'
16    CXX     = PREFIX + 'g++'
17    AS      = PREFIX + 'gcc'
18    AR      = PREFIX + 'ar'
19    LINK    = PREFIX + 'gcc'
20    TARGET_EXT = 'elf'
21    SIZE    = PREFIX + 'size'
22    OBJDUMP = PREFIX + 'objdump'
23    OBJCPY  = PREFIX + 'objcopy'
24    STRIP   = PREFIX + 'strip'
25    CFPFLAGS = ' -msoft-float'
26    AFPFLAGS = ' -mfloat-abi=softfp -mfpu=neon'
27    DEVICE   = ' -march=armv7-a -mtune=cortex-a7 -ftree-vectorize -ffast-math -funwind-tables -fno-strict-aliasing'
28
29    CXXFLAGS= DEVICE + CFPFLAGS + ' -Wall -fdiagnostics-color=always'
30    CFLAGS  = DEVICE + CFPFLAGS + ' -Wall -Wno-cpp -std=gnu99 -D_POSIX_SOURCE -fdiagnostics-color=always'
31    AFLAGS  = DEVICE + ' -c' + AFPFLAGS + ' -x assembler-with-cpp'
32    LFLAGS  = DEVICE + ' -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T '+ LINK_SCRIPT + ' -lsupc++ -lgcc -static'
33    CPATH   = ''
34    LPATH   = ''
35
36    if BUILD == 'debug':
37        CFLAGS   += ' -O0 -gdwarf-2'
38        CXXFLAGS += ' -O0 -gdwarf-2'
39        AFLAGS   += ' -gdwarf-2'
40    else:
41        CFLAGS   += ' -Os'
42        CXXFLAGS += ' -Os'
43    CXXFLAGS += ' -Woverloaded-virtual -fno-rtti'
44    MKIMAGE = '-t imximage -b rtthread.bin -o rtthread.imx -g rtthread.img -a 0x80001000'
45
46    M_CFLAGS = CFLAGS + ' -mlong-calls -fPIC '
47    M_CXXFLAGS = CXXFLAGS + ' -mlong-calls -fPIC'
48    M_LFLAGS = DEVICE + CXXFLAGS + ' -Wl,--gc-sections,-z,max-page-size=0x4' +\
49                                    ' -shared -fPIC -nostartfiles -nostdlib -static-libgcc'
50    M_POST_ACTION = STRIP + ' -R .hash $TARGET\n' + SIZE + ' $TARGET \n'
51
52    DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
53    POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n' +\
54              'python3 mkimage.py ' + MKIMAGE + '\n'
55