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clang work with imxrt tested with metro rt1011 and rt1060 evk. Don't use startfiles for imxrt

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hathach 2024-04-22 22:00:45 +07:00
parent 6294e4aa43
commit c9e467822c
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GPG Key ID: 26FAB84F615C3C52
2 changed files with 39 additions and 22 deletions
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16
hw/bsp/imxrt/family.c
View File

@ -224,3 +224,19 @@ uint32_t board_millis(void) {
return system_ticks;
}
#endif
// Implement _start() since we use linker flag '-nostartfiles'.
// Requires defined __STARTUP_CLEAR_BSS,
extern int main(void);
TU_ATTR_UNUSED void _start(void) {
// called by startup code
main();
while (1) {}
}
#ifdef __clang__
void _exit (int __status) {
while (1) {}
}
#endif

45
hw/bsp/imxrt/family.cmake
View File

@ -1,9 +1,5 @@
include_guard()
if (NOT BOARD)
message(FATAL_ERROR "BOARD not specified")
endif ()
set(SDK_DIR ${TOP}/hw/mcu/nxp/mcux-sdk)
set(CMSIS_DIR ${TOP}/lib/CMSIS_5)
@ -26,7 +22,21 @@ function(add_board_target BOARD_TARGET)
return()
endif ()
# LD_FILE and STARTUP_FILE can be defined in board.cmake
if (NOT DEFINED LD_FILE_${CMAKE_C_COMPILER_ID})
set(LD_FILE_GNU ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/${MCU_VARIANT}xxxxx${MCU_CORE}_flexspi_nor.ld)
#set(LD_FILE_IAR ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/${MCU_VARIANT}xxxxx_flexspi_nor.ld)
endif ()
set(LD_FILE_Clang ${LD_FILE_GNU})
if (NOT DEFINED STARTUP_FILE_${CMAKE_C_COMPILER_ID})
set(STARTUP_FILE_GNU ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/startup_${MCU_VARIANT_WITH_CORE}.S)
#set(STARTUP_FILE_IAR ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/startup_${MCU_VARIANT_WITH_CORE}.S)
endif ()
set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
add_library(${BOARD_TARGET} STATIC
${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}/board/clock_config.c
${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}/board/pin_mux.c
${SDK_DIR}/drivers/common/fsl_common.c
@ -52,6 +62,7 @@ function(add_board_target BOARD_TARGET)
__ARMFPV5__=0
XIP_EXTERNAL_FLASH=1
XIP_BOOT_HEADER_ENABLE=1
__STARTUP_CLEAR_BSS
)
target_include_directories(${BOARD_TARGET} PUBLIC
${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
@ -68,31 +79,21 @@ function(add_board_target BOARD_TARGET)
update_board(${BOARD_TARGET})
# LD_FILE and STARTUP_FILE can be defined in board.cmake
if (NOT DEFINED LD_FILE_${CMAKE_C_COMPILER_ID})
set(LD_FILE_GNU ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/${MCU_VARIANT}xxxxx${MCU_CORE}_flexspi_nor.ld)
#set(LD_FILE_IAR ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/${MCU_VARIANT}xxxxx_flexspi_nor.ld)
endif ()
if (NOT DEFINED STARTUP_FILE_${CMAKE_C_COMPILER_ID})
set(STARTUP_FILE_GNU ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/startup_${MCU_VARIANT_WITH_CORE}.S)
#set(STARTUP_FILE_IAR ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/startup_${MCU_VARIANT_WITH_CORE}.S)
endif ()
target_sources(${BOARD_TARGET} PUBLIC
${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
)
if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
target_link_options(${BOARD_TARGET} PUBLIC
"LINKER:--script=${LD_FILE_GNU}"
# nanolib
--specs=nosys.specs
--specs=nano.specs
-nostartfiles
--specs=nosys.specs --specs=nano.specs
# force linker to look for these symbols
-Wl,-uimage_vector_table
-Wl,-ug_boot_data
)
elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
target_link_options(${BOARD_TARGET} PUBLIC
"LINKER:--script=${LD_FILE_GNU}"
-Wl,-uimage_vector_table
-Wl,-ug_boot_data
)
elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
target_link_options(${BOARD_TARGET} PUBLIC
"LINKER:--config=${LD_FILE_IAR}"