![]() ![]() Projects configured to use armasm will fail to compile the new startup code. The IDE will recreate the startup code from the shipped template using the correct case.Īnother issue when updating existing projects can be the selection of assembler to be used. In this case the user needs to delete the file manually. Unfortunately, IDEs can fail renaming the files kept as part of the project. Hence the startup files have been renamed from startup_.s to startup_.S. The new style makes use of pre-processor features. The Assembly syntax used for Armv8-M pseudo devices has been changed from ARM to GNU. Updating existing Armv8-M projects using Assembly startup with Arm Compiler 6 The include must be placed before any CMSIS header include. Workaround Users of Arm Compiler 6 depending on Arm Compiler 5 compatibility functions need to include arm_compat.h, explicitly. Potential symptoms Users including arm_compat.h already in their code may face issues like error: redefinition of '_enable_irq' _enable_irq(void). Unfortunately, this may cause redefinition issues when arm_compat.h shall be used together with CMSIS. CMSIS now provides its own implementation of this functions for Arm Compiler 6. This specifically applies to _enable_irq() and _disable_irq(). ![]() Starting with CMSIS 5.8.0 this has been removed in favor of a functional safe implementation. ![]() Up to CMSIS 5.7.0 arm_compat.h was included by CMSIS indirectly. Known Issues Relying on Arm Compiler 5 intrinsics defined in Arm Compiler 6's arm_compat.hĪrm Compiler 6 ships a compatibility header arm_compat.h which defines some Arm Compiler 5 intrinsics, such as _current_sp(), _current_pc() or _schedule_barrier().
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