1import os
2
3# toolchains options
4ARCH        ='risc-v'
5CPU         =''
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'~/.espressif/tools/riscv32-esp-elf/esp-2022r1-11.2.0/riscv32-esp-elf/bin'
14else:
15    print('Please make sure your toolchains is GNU GCC!')
16    exit(0)
17
18if os.getenv('RTT_EXEC_PATH'):
19    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
20EXEC_PATH = os.path.expanduser(EXEC_PATH)
21
22BUILD = 'debug'
23
24if PLATFORM == 'gcc':
25    # toolchains
26    PREFIX = 'riscv32-esp-elf-'
27    CC = PREFIX + 'gcc'
28    CXX = PREFIX + 'g++'
29    AS = PREFIX + 'gcc'
30    AR = PREFIX + 'ar'
31    LINK = PREFIX + 'g++'
32    TARGET_EXT = 'elf'
33    SIZE = PREFIX + 'size'
34    OBJDUMP = PREFIX + 'objdump'
35    OBJCPY = PREFIX + 'objcopy'
36    STRIP = PREFIX + 'strip'
37
38    DEVICE  = ' -nostartfiles -march=rv32imc --specs=nosys.specs -fasynchronous-unwind-tables '
39    CFLAGS = DEVICE + '-include ../../components/libc/compilers/common/include/sys/ioctl.h -gdwarf-4 -ggdb -Og '
40    AFLAGS =  ' -c' + DEVICE + ' -x assembler-with-cpp'
41    LFLAGS = DEVICE + ' -Wl,--cref -Wl,--defsym=IDF_TARGET_ESP32C3=0 -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T idf_port/ld/memory.ld -T idf_port/ld/sections.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.api.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.libgcc.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.newlib.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.version.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.eco3.ld -T packages/ESP-IDF-latest/components/soc/esp32c3/ld/esp32c3.peripherals.ld  -Wl,--wrap=_Unwind_SetEnableExceptionFdeSorting -Wl,--wrap=__register_frame_info_bases -Wl,--wrap=__register_frame_info -Wl,--wrap=__register_frame -Wl,--wrap=__register_frame_info_table_bases -Wl,--wrap=__register_frame_info_table -Wl,--wrap=__register_frame_table -Wl,--wrap=__deregister_frame_info_bases -Wl,--wrap=__deregister_frame_info -Wl,--wrap=_Unwind_Find_FDE -Wl,--wrap=_Unwind_GetGR -Wl,--wrap=_Unwind_GetCFA -Wl,--wrap=_Unwind_GetIP -Wl,--wrap=_Unwind_GetIPInfo -Wl,--wrap=_Unwind_GetRegionStart -Wl,--wrap=_Unwind_GetDataRelBase -Wl,--wrap=_Unwind_GetTextRelBase -Wl,--wrap=_Unwind_SetIP -Wl,--wrap=_Unwind_SetGR -Wl,--wrap=_Unwind_GetLanguageSpecificData -Wl,--wrap=_Unwind_FindEnclosingFunction -Wl,--wrap=_Unwind_Resume -Wl,--wrap=_Unwind_RaiseException -Wl,--wrap=_Unwind_DeleteException -Wl,--wrap=_Unwind_ForcedUnwind -Wl,--wrap=_Unwind_Resume_or_Rethrow -Wl,--wrap=_Unwind_Backtrace -Wl,--wrap=__cxa_call_unexpected -Wl,--eh-frame-hdr -Wl,--wrap=__gxx_personality_v0  -Wl,--cref -Wl,--defsym=IDF_TARGET_ESP32C3=0'
42    CXXFLAGS = CFLAGS
43
44    POST_ACTION = OBJCPY + ' -Oihex $TARGET rtthread.hex\n' + SIZE + ' $TARGET \n'
45