Env

env编译问题，keil编译器

发布于 2025-04-29 09:18:10 浏览：77 订阅该版

[tocm]

想使用ARM compiler变成v5编译程序 每次使用env命令scons --target=mdk5 之后MDK的ARM compiler变成v6 MDK版本v5.25
```python
import os

# toolchains options
ARCH='arm'
CPU='cortex-m4'
CROSS_TOOL='keil'

# bsp lib config
BSP_LIBRARY_TYPE = None

if os.getenv('RTT_CC'):
    CROSS_TOOL = os.getenv('RTT_CC')
if os.getenv('RTT_ROOT'):
    RTT_ROOT = os.getenv('RTT_ROOT')

# cross_tool provides the cross compiler
# EXEC_PATH is the compiler execute path, for example, CodeSourcery, Keil MDK, IAR
if  CROSS_TOOL == 'gcc':
    PLATFORM    = 'gcc'
    EXEC_PATH   = r'C:\Users\XXYYZZ'
elif CROSS_TOOL == 'keil':
    PLATFORM    = 'armcc'
    EXEC_PATH   = r'C:/Keil_v5'
elif CROSS_TOOL == 'iar':
    PLATFORM    = 'iccarm'
    EXEC_PATH   = r'C:/Program Files (x86)/IAR Systems/Embedded Workbench 8.3'
elif CROSS_TOOL == 'llvm-arm':
    PLATFORM    = 'llvm-arm'
    EXEC_PATH   = r'D:\Progrem\LLVMEmbeddedToolchainForArm-17.0.1-Windows-x86_64\bin'

if os.getenv('RTT_EXEC_PATH'):
    EXEC_PATH = os.getenv('RTT_EXEC_PATH')

BUILD = 'debug'

if PLATFORM == 'gcc':
    # toolchains
    PREFIX = 'arm-none-eabi-'
    CC = PREFIX + 'gcc'
    AS = PREFIX + 'gcc'
    AR = PREFIX + 'ar'
    CXX = PREFIX + 'g++'
    LINK = PREFIX + 'gcc'
    TARGET_EXT = 'elf'
    SIZE = PREFIX + 'size'
    OBJDUMP = PREFIX + 'objdump'
    OBJCPY = PREFIX + 'objcopy'

DEVICE = ' -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard -ffunction-sections -fdata-sections'
    CFLAGS = DEVICE + ' -Dgcc'
    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -Wa,-mimplicit-it=thumb '
    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rt-thread.map,-cref,-u,Reset_Handler -T board/linker_scripts/link.lds'

CPATH = ''
    LPATH = ''

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

CXXFLAGS = CFLAGS

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

elif PLATFORM == 'armcc':
    # toolchains
    CC = 'armcc'
    CXX = 'armcc'
    AS = 'armasm'
    AR = 'armar'
    LINK = 'armlink'
    TARGET_EXT = 'axf'

DEVICE = ' --cpu Cortex-M4.fp '
    CFLAGS = '-c ' + DEVICE + ' --apcs=interwork --c99'
    AFLAGS = DEVICE + ' --apcs=interwork '
    LFLAGS = DEVICE + ' --scatter "board\linker_scripts\link.sct" --info sizes --info totals --info unused --info veneers --list rt-thread.map --strict'
    CFLAGS += ' -I' + EXEC_PATH + '/ARM/ARMCC/include'
    LFLAGS += ' --libpath=' + EXEC_PATH + '/ARM/ARMCC/lib'

CFLAGS += ' -D__MICROLIB '
    AFLAGS += ' --pd "__MICROLIB SETA 1" '
    LFLAGS += ' --library_type=microlib '
    EXEC_PATH += '/ARM/ARMCC/bin/'

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

CXXFLAGS = CFLAGS 
    CFLAGS += ' -std=c99'

POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'

elif PLATFORM == 'armclang':
    # toolchains
    CC = 'armclang'
    CXX = 'armclang'
    AS = 'armasm'
    AR = 'armar'
    LINK = 'armlink'
    TARGET_EXT = 'axf'

DEVICE = ' --cpu Cortex-M4.fp '
    CFLAGS = ' --target=arm-arm-none-eabi -mcpu=cortex-m4 '
    CFLAGS += ' -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 '
    CFLAGS += ' -mfloat-abi=hard -c -fno-rtti -funsigned-char -fshort-enums -fshort-wchar '
    CFLAGS += ' -gdwarf-3 -ffunction-sections '
    AFLAGS = DEVICE + ' --apcs=interwork '
    LFLAGS = DEVICE + ' --info sizes --info totals --info unused --info veneers '
    LFLAGS += ' --list rt-thread.map '
    LFLAGS += r' --strict --scatter "board\linker_scripts\link.sct" '
    CFLAGS += ' -I' + EXEC_PATH + '/ARM/ARMCLANG/include'
    LFLAGS += ' --libpath=' + EXEC_PATH + '/ARM/ARMCLANG/lib'

EXEC_PATH += '/ARM/ARMCLANG/bin/'

if BUILD == 'debug':
        CFLAGS += ' -g -O1' # armclang recommend
        AFLAGS += ' -g'
    else:
        CFLAGS += ' -O2'
        
    CXXFLAGS = CFLAGS
    CFLAGS += ' -std=c99'

POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'

elif PLATFORM == 'iccarm':
    # toolchains
    CC = 'iccarm'
    CXX = 'iccarm'
    AS = 'iasmarm'
    AR = 'iarchive'
    LINK = 'ilinkarm'
    TARGET_EXT = 'out'

DEVICE = '-Dewarm'

CFLAGS = DEVICE
    CFLAGS += ' --diag_suppress Pa050'
    CFLAGS += ' --no_cse'
    CFLAGS += ' --no_unroll'
    CFLAGS += ' --no_inline'
    CFLAGS += ' --no_code_motion'
    CFLAGS += ' --no_tbaa'
    CFLAGS += ' --no_clustering'
    CFLAGS += ' --no_scheduling'
    CFLAGS += ' --endian=little'
    CFLAGS += ' --cpu=Cortex-M4'
    CFLAGS += ' -e'
    CFLAGS += ' --fpu=VFPv4_sp'
    CFLAGS += ' --dlib_config "' + EXEC_PATH + '/arm/INC/c/DLib_Config_Normal.h"'
    CFLAGS += ' --silent'

AFLAGS = DEVICE
    AFLAGS += ' -s+'
    AFLAGS += ' -w+'
    AFLAGS += ' -r'
    AFLAGS += ' --cpu Cortex-M4'
    AFLAGS += ' --fpu VFPv4_sp'
    AFLAGS += ' -S'

if BUILD == 'debug':
        CFLAGS += ' --debug'
        CFLAGS += ' -On'
    else:
        CFLAGS += ' -Oh'

LFLAGS = ' --config "board/linker_scripts/link.icf"'
    LFLAGS += ' --entry __iar_program_start'

CXXFLAGS = CFLAGS
    
    EXEC_PATH = EXEC_PATH + '/arm/bin/'
    POST_ACTION = 'ielftool --bin $TARGET rtthread.bin'
elif PLATFORM == 'llvm-arm':
    # toolchains
    PREFIX = 'llvm-'
    CC = 'clang'
    AS = 'clang'
    AR = PREFIX + 'ar'
    CXX = 'clang++'
    LINK = 'clang'
    TARGET_EXT = 'elf'
    SIZE = PREFIX + 'size'
    OBJDUMP = PREFIX + 'objdump'
    OBJCPY = PREFIX + 'objcopy'
    DEVICE = ' --target=arm-none-eabihf -mfloat-abi=hard -march=armv7em -mfpu=fpv4-sp-d16'
    DEVICE += ' -ffunction-sections -fdata-sections -fno-exceptions -fno-rtti'
    CFLAGS = DEVICE
    AFLAGS = ' -c' + DEVICE + ' -Wa,-mimplicit-it=thumb ' ## -x assembler-with-cpp
    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rt-thread.map,-u,Reset_Handler -lcrt0 -T board/linker_scripts/link.lds'

CPATH = ''
    LPATH = ''

if BUILD == 'debug':
        CFLAGS += ' -O0 -gdwarf-2 -g'
        AFLAGS += ' -gdwarf-2'
    else:
        CFLAGS += ' -O3'

CXXFLAGS = CFLAGS

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

def dist_handle(BSP_ROOT, dist_dir):
    import sys
    cwd_path = os.getcwd()
    sys.path.append(os.path.join(os.path.dirname(BSP_ROOT), 'tools'))
    from sdk_dist import dist_do_building
    dist_do_building(BSP_ROOT, dist_dir)

```
![微信截图_20250429091521.png](https://oss-club.rt-thread.org/uploads/20250429/9b25f335572b3e3aff563e9cfbcd7693.png.webp)