1import os
2
3# toolchains options
4ARCH='arm'
5CPU='am335x'
6CROSS_TOOL='gcc'
7
8if os.getenv('RTT_CC'):
9    CROSS_TOOL = os.getenv('RTT_CC')
10
11if  CROSS_TOOL == 'gcc':
12    PLATFORM 	= 'gcc'
13    EXEC_PATH 	= r'C:\Program Files (x86)\CodeSourcery\Sourcery_CodeBench_Lite_for_ARM_EABI\bin'
14elif CROSS_TOOL == 'iar':
15    PLATFORM    = 'iccarm'
16    EXEC_PATH   = r'C:\Program Files\IAR Systems\Embedded Workbench 9.1'
17
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 = ' -Wall -march=armv7-a -mtune=cortex-a8'+\
37             ' -ftree-vectorize -ffast-math -mfpu=vfpv3-d16 -mfloat-abi=softfp'
38    #DEVICE = ' '
39    CFLAGS = DEVICE
40    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -D__ASSEMBLY__'
41    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-beaglebone.map,-cref,-u,Reset_Handler -T beaglebone_ram.lds'
42
43    CPATH = ''
44    LPATH = ''
45
46    if BUILD == 'debug':
47        CFLAGS += ' -O0 -gdwarf-2 -Wall'
48        AFLAGS += ' -gdwarf-2'
49    else:
50        CFLAGS += ' -O2 -Wall'
51
52    POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' +\
53                  SIZE + ' $TARGET \n'
54
55elif PLATFORM == 'iccarm':
56    # toolchains
57    CC = 'iccarm'
58    CXX = 'iccarm'
59    AS = 'iasmarm'
60    AR = 'iarchive'
61    LINK = 'ilinkarm'
62    TARGET_EXT = 'out'
63
64    DEVICE = '-Dewarm'
65
66    # ATTENTION from author vipox@qq.com: below *FLAGS are unverified and maybe wrong!
67    # I just copied it from STM32 and changed it according to my own understanding.
68    # However, even if it is wrong, it does not affect our generation of IAR project.
69    CFLAGS = DEVICE
70    CFLAGS += ' --diag_suppress Pa050'
71    CFLAGS += ' --no_cse'
72    CFLAGS += ' --no_unroll'
73    CFLAGS += ' --no_inline'
74    CFLAGS += ' --no_code_motion'
75    CFLAGS += ' --no_tbaa'
76    CFLAGS += ' --no_clustering'
77    CFLAGS += ' --no_scheduling'
78    CFLAGS += ' --endian=little'
79    CFLAGS += ' --cpu=Cortex-A8'
80    CFLAGS += ' -e'
81    CFLAGS += ' --fpu=VFPv3'
82    CFLAGS += ' --dlib_config "' + EXEC_PATH + '/arm/INC/c/DLib_Config_Normal.h"'
83    CFLAGS += ' --silent'
84
85    AFLAGS = DEVICE
86    AFLAGS += ' -s+'
87    AFLAGS += ' -w+'
88    AFLAGS += ' -r'
89    AFLAGS += ' --cpu Cortex-A8'
90    AFLAGS += ' --fpu VFPv3'
91    AFLAGS += ' -S'
92
93    if BUILD == 'debug':
94        CFLAGS += ' --debug'
95        CFLAGS += ' -On'
96    else:
97        CFLAGS += ' -Oh'
98
99    LFLAGS = ' --config "beaglebone_ram.icf"'
100    LFLAGS += ' --entry __iar_program_start'
101
102    CXXFLAGS = CFLAGS
103
104    EXEC_PATH = EXEC_PATH + '/arm/bin/'
105    POST_ACTION = 'ielftool --bin $TARGET rtthread.bin'
106