STM32 hardware float compilation failure

[paradajz]

Hi,

 

I just downloaded trial version of VisualGDB, and so far, I haven’t even managed to compile a test project. I’ve chosen “STM32F405RG” as processor, selected Hardware float support and then I get the following error:

 

Tool arguments: -Wl,–start-group “C:\Users\paradajz\AppData\Local\Temp\/VisualGDB_TrivialProgram.o” -o “C:\Users\paradajz\AppData\Local\Temp\/VisualGDB_TrivialProgram.bin” -Wl,-gc-sections –specs=rdimon.specs -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -TC:\Users\paradajz\AppData\Local\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.stm32/STM32F4xxxx/LinkerScripts/STM32F405RG_flash.lds -Wl,–end-group
c:/stm32toolchain/gcc-arm/bin/../lib/gcc/arm-none-eabi/5.4.1/../../../../arm-none-eabi/bin/ld.exe: error: C:\Users\paradajz\AppData\Local\Temp\/VisualGDB_TrivialProgram.o uses VFP register arguments, C:\Users\paradajz\AppData\Local\Temp\/VisualGDB_TrivialProgram.bin does not
c:/stm32toolchain/gcc-arm/bin/../lib/gcc/arm-none-eabi/5.4.1/../../../../arm-none-eabi/bin/ld.exe: failed to merge target specific data of file C:\Users\paradajz\AppData\Local\Temp\/VisualGDB_TrivialProgram.o
c:/stm32toolchain/gcc-arm/bin/../lib/gcc/arm-none-eabi/5.4.1/../../../../arm-none-eabi/bin/ld.exe: warning: cannot find entry symbol Reset_Handler; defaulting to 08000000
collect2.exe: error: ld returned 1 exit status

Why is this failing?

[support]

Hi,

Looks like your toolchain might not support hardware floating point properly. Please try using the ARM toolchain that comes with VisualGDB.

[MajesticRa]

I had exactly the same issue when I first time installed VisualGDB and used my tool chain (installed somewhere in the system).  As support answers, the problem disappeared after I allowed VisualGDB to download toolchain on its own.

[Author]

Posts