Issues due to optimization level

[Muthaiah Murugappan]

Posted on June 26, 2018 at 23:00

Hello All,

              I hope your doing good. I am working on a project based on STM32L476RG using Keil v5. I have used assert in my code. It works correctly for the compiler optimization L2 and L3. But when I change to Level 1 or 0, i get

'G3\G3.axf: Error: L6218E: Undefined symbol __aeabi_assert (referred from st_spi.o).'

 Anybody with any leads on this. Thank you all for your time.

Muthaiah Murugappan

#optimization #hal-spi #stm32l476

[Bob S]

Posted on June 26, 2018 at 23:15

See this link:

http://www.keil.com/support/man/docs/armlib/armlib_chr1358938924063.htm

Apparently with the Keil compiler the assert() macro behaves differently depending on the optimization level.  The real question is why the linker isn't finding the __atabi_assert() function that is supposed to be in a library somewhere.

[Muthaiah Murugappan]

Posted on June 26, 2018 at 23:48

Hello Bob,

                Thanks for getting back to me. The link you sent describes a better picture for my issue. Thanks for the information. 

Even I'm not able to figure out, why the compiler doesn't find out the library function.

Thanks

Muthaiah Murugappan

[Tesla DeLorean]

Posted on June 27, 2018 at 00:21

>>Even I'm not able to figure out, why the compiler doesn't find out the library function.

Keil has support contact numbers for such issues.

[Muthaiah Murugappan]

Posted on June 27, 2018 at 15:11

Hey Clive, thanks for responding, I will get in touch with keil support and post an update here.

[Tesla DeLorean]

Posted on June 27, 2018 at 17:49

Are there portions of the project that aren't getting rebuilt properly, or pulled in as libraries?

Have you tried Rebuild-All?

[Muthaiah Murugappan]

Posted on June 27, 2018 at 19:54

Yes Clive, I have tried rebuilding all and I guess there isn't portions, not getting rebuilt properly.