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Preprocessor define when migrating code from Compiler Version 5 to 6

OFreddy

I want to migrate my projects from Keil Arm Compiler V5 to V6.

According to this tutorial the language extensions need to be revised in the code.

https://www.keil.com/appnotes/files/apnt_298.pdf

What will be the recommended preprocessor definition to identfy the compiler?

Example:

#if defined(__ARM_COMPILER_V5__)

#define __WEAK__ __weak

#define __PACKED__ __packed

#endif

#if defined(__ARM_COMPILER_V6__)

#define __WEAK__ __attribute__((weak))

#define __PACKED__  __attribute__((packed))

#endif

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  • 0 in reply to rkopsch

    Thank you for the quick reply.

    I have already found the listed documents and links. However, the directives listed there did not seem to me to be goal-oriented or too complex. The __CC_ARM and __GNUC__ directives have not been found to be reliable. I'll try __ARMCC_VERSION then.

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  • 0 in reply to rkopsch

    Thank you for the quick reply.

    I have already found the listed documents and links. However, the directives listed there did not seem to me to be goal-oriented or too complex. The __CC_ARM and __GNUC__ directives have not been found to be reliable. I'll try __ARMCC_VERSION then.

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