Posted by lee.combs on 2021-09-22 15:11

Hi,

The issue is I’ve combined two projects and after fixing all the include errors I can’t figure out where this build error is coming from.

The consol text is below:

//
08:55:43 **** Incremental Build of configuration Debug for project IOLMA_ll_STM32F7_SW4STM32_PROTO_01 ****
make -j8 all
Building target: IOLMA_ll_STM32F7_SW4STM32_PROTO_01.elf
Invoking: MCU GCC Linker
arm-none-eabi-gcc -mcpu=cortex-m7 -mthumb -mfloat-abi=hard -mfpu=fpv5-sp-d16 -T”U:/Projects_Tasks/Current_Projects/Cora_Spreader/IO_Link_/NUCLEO-F746ZG/CODE/IOLMA_ll_STM32F7_SW4STM32_PROTO_01/STM32F746ZGTx_FLASH.ld” -Wl,-Map=output.map -Wl,--gc-sections -o “IOLMA_ll_STM32F7_SW4STM32_PROTO_01.elf” @”objects.list” -lm
c:/ac6/systemworkbench/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.17.0.201812190825/tools/compiler/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc.a(lib_a-sbrkr.o): In function `_sbrk_r’:
sbrkr.c:(.text._sbrk_r+0xc): undefined reference to `_sbrk’
c:/ac6/systemworkbench/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.17.0.201812190825/tools/compiler/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc.a(lib_a-writer.o): In function `_write_r’:
writer.c:(.text._write_r+0x12): undefined reference to `_write’
c:/ac6/systemworkbench/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.17.0.201812190825/tools/compiler/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc.a(lib_a-closer.o): In function `_close_r’:
closer.c:(.text._close_r+0xc): undefined reference to `_close’
c:/ac6/systemworkbench/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.17.0.201812190825/tools/compiler/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc.a(lib_a-fstatr.o): In function `_fstat_r’:
fstatr.c:(.text._fstat_r+0x10): undefined reference to `_fstat’
c:/ac6/systemworkbench/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.17.0.201812190825/tools/compiler/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc.a(lib_a-isattyr.o): In function `_isatty_r’:
isattyr.c:(.text._isatty_r+0xc): undefined reference to `_isatty’
c:/ac6/systemworkbench/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.17.0.201812190825/tools/compiler/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc.a(lib_a-lseekr.o): In function `_lseek_r’:
lseekr.c:(.text._lseek_r+0x12): undefined reference to `_lseek’
c:/ac6/systemworkbench/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.17.0.201812190825/tools/compiler/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc.a(lib_a-readr.o): In function `_read_r’:
readr.c:(.text._read_r+0x12): undefined reference to `_read’
collect2.exe: error: ld returned 1 exit status
makefile:39: recipe for target ‘IOLMA_ll_STM32F7_SW4STM32_PROTO_01.elf’ failed
make: *** IOLMA_ll_STM32F7_SW4STM32_PROTO_01.elf Error 1

08:55:46 Build Finished (took 2s.976ms)
//

Any help on this topic would be greatly appreciated.

Thank you