rt-thread/bsp/x86/rtconfig.py

import os

# toolchains options
ARCH='ia32'
CPU=''
CROSS_TOOL= os.getenv('RTT_CC') or 'gcc'

# cross_tool provides the cross compiler
# EXEC_PATH is the compiler execute path, for example, CodeSourcery,

if  CROSS_TOOL == 'gcc':
    PLATFORM    = 'gcc'
    EXEC_PATH   = os.getenv('RTT_EXEC_PATH') or 'E:/Program Files/CodeSourcery/Sourcery_CodeBench_Lite_for_IA32_ELF/bin'
else:
    print('Unknown toolchains, only support GCC')
    exit(0)

BUILD = 'debug'

if PLATFORM == 'gcc':
    # toolchains
    PREFIX = 'i386-unknown-elf-'
    CC = PREFIX + 'gcc'
    AS = PREFIX + 'gcc'
    AR = PREFIX + 'ar'
    LINK = PREFIX + 'gcc'
    TARGET_EXT = 'elf'
    SIZE = PREFIX + 'size'
    OBJDUMP = PREFIX + 'objdump'
    OBJCPY = PREFIX + 'objcopy'

    DEVICE = ' -mtune=generic'
    CFLAGS = DEVICE + ' -Wall'
    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T x86_ram.lds -nostartfiles'

    CPATH = ''
    LPATH = ''

    if BUILD == 'debug':
        CFLAGS += ' -O0 -gdwarf-2'
        AFLAGS += ' -gdwarf-2'
    else:
        CFLAGS += ' -O2'

    POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'