Semihosting with EFM32PG12B, Linker Error: __HeapBase

[timParticipant]

Hello,

I want to use “semihosting” with Target: EFM32PG12B500F1024GM48

C++

Error Messages: Error undefined reference to `__HeapBase' EmTestSemihosting C:\Workspace\VS2019\EmTestSemihosting\VisualGDB\Debug\__BSP_ROOT__\framework\common\toolchain\src\sl_memory.o 0 Error undefined reference to `__HeapLimit' EmTestSemihosting m:\Repository\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.silabs.efm32\framework\common\toolchain\src\sl_memory.c 109

1 2 3

Error Messages: Error undefined reference to `__HeapBase' EmTestSemihosting C:\Workspace\VS2019\EmTestSemihosting\VisualGDB\Debug\__BSP_ROOT__\framework\common\toolchain\src\sl_memory.o 0 Error undefined reference to `__HeapLimit' EmTestSemihosting m:\Repository\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.silabs.efm32\framework\common\toolchain\src\sl_memory.c 109

The BSP is EFM32 6.4.4

corresponding Linker Script: EFM32PG12B500F1024GM48_flash.lds

There is now Definition for

C++

extern char __HeapBase[]; extern char __HeapLimit[];

1 2	extern char __HeapBase[]; extern char __HeapLimit[];

Do I need Heap at all? (for semihosting)

Kind Regards

Thomas

 

• This topic was modified 3 weeks, 6 days ago by  support. Reason: formatting

[supportKeymaster]

Hi,

Thanks for pointing this out. The new Gecko SDK indeed provided its own implementation of _sbrk() that was not fully compatible with the VisualGDB-generated linker scripts.

Since VisualGDB provides its own implementation, it is not really needed. We have updated the BSP removing it. Feel free to re-download it via Tools->VisualGDB->Manage VisualGDB Packages.

[Author]

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