Library compile error

[Erenburg.Evgeny]

Posted on February 21, 2018 at 12:47

I've included STM32_USB-FS-Device_Driver in my project. When I compile (in IAR) I get a bunch of errors

Error[Li006]: duplicate definitions for 'Receive_Buffer'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\

MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_init.o' Error[Li006]: duplicate definitions for 'Send_length'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_init.o' Error[Li006]: duplicate definitions for 'Receive_Buffer'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_int.o' Error[Li006]: duplicate definitions for 'Send_length'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_int.o' Error[Li006]: duplicate definitions for 'Receive_Buffer'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_mem.o' Error[Li006]: duplicate definitions for 'Send_length'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_mem.o' Error[Li006]: duplicate definitions for 'Receive_Buffer'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_regs.o' Error[Li006]: duplicate definitions for 'Send_length'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_regs.o' Error[Li006]: duplicate definitions for 'Receive_Buffer'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_sil.o' Error[Li006]: duplicate definitions for 'Send_length'; in 'F:\MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_core.o', and 'F:\ MotorControlSolution\MultiAxisMotorControl\AxisManager\Firmware\STM32F303VC\Debug\Obj\usb_sil.o' Error while running Linker

What is wrong?

[Tesla DeLorean]

Posted on February 21, 2018 at 12:55

Perhaps a #define is missing, or you're including mutually exclusive things?

Look at the two places the things are supposedly defined, and try to understand the context for their inclusion.

[Andrew Neil]

Posted on February 21, 2018 at 13:08

What is wrong?

Exactly what it tells you:

Error[Li006]: duplicate definitions for 'Receive_Buffer';

in

'...\usb_core.o',

and

'...

usb_init.o'

So, as

Turvey.Clive.002

‌ says,

1. look at the listed files
2. find where the definitions are duplicated
3. remove the 'spurious' one.

Do you, perhaps, have definitions (rather than just declarations) in a header file somewhere ... ?

http://c-faq.com/decl/decldef.html

[AvaTar]

Posted on February 21, 2018 at 13:31

As this is a linker error, perhaps you have a variable defined twice, in two different modules ?

If so, change one into a declaration.

[Andrew Neil]

Posted on February 21, 2018 at 14:07

It does seem that, in all those messages, 

usb_core.o contains one of the duplicated definitions.

That suggests:

• either all of the definitions should be in 

  usb_core.o, and the others should just be accessing them as 'extern';

   

• or none of the definitions should be in 

  usb_core.o - it should just be accessing them as 'extern' from the other modules.

Again, as you have a working build 

from STM32373C-EVAL_FW_V1.0.0, I would start by looking at that to see how it's done.

Then look at your project to see where it's gone wrong.

[Erenburg.Evgeny]

Posted on February 21, 2018 at 13:13

There is no

Receive_Buffer inclusion

- not in

usb_core

.c/h not in

usb_init

.c/h. Nothing to be 'duplicate'.

Besides it's  STM  USB Library - I didn't write a line of code in it.

I've just opened a demo project (from STM32373C-EVAL_FW_V1.0.0) and it compiles OK - with this library (STM32_USB-FS-Device_Driver).

But in my project the library compiled with errors.

[Andrew Neil]

Posted on February 21, 2018 at 13:21

There is no

Receive_Buffer inclusion

- not in

usb_core

.c/h not in

usb_init

.c/h. Nothing to be 'duplicate'.

But clearly there is - that is exactly what IAR is telling you in those messages.

Maybe examine the preprocessor output to see exactly what is happening with ♯ includes and conditionals ...

(sorry, I don't use IAR so I don't know the specific options to get the preprocessor output - you will have to check your IAR documentation, or ask IAR).

[Andrew Neil]

Posted on February 21, 2018 at 13:41

There's no 'perhaps' - that is exactly what the messages are saying!

They even tell you exactly which two modules both contain the definitions.

[Andrew Neil]

Posted on February 21, 2018 at 13:42

erenburg.evgeny.002 wrote:

I've just opened a demo project (from STM32373C-EVAL_FW_V1.0.0) and it compiles OK - with this library (STM32_USB-FS-Device_Driver).

But in my project the library compiled with errors.

So there is something wrong in your project causing the duplication.

Compare the two projects.

[AvaTar]

Posted on February 21, 2018 at 14:12

There's no 'perhaps' - that is exactly what the messages are saying!

Those error messages refer generically to an object, which could be a function as well - therefore the 'perhaps'.

Only the name 'Receive_Buffer' suggests it is a variable.