How to suppress linker warnings in scatter file

G . said:

Is there a way to suppress this warning using a directive in the scatter file, rather than via the command line --diag_suppress ?

Also getting similar issue, thanks mate. 

mycfavisit kmspico

I am not aware of a way to suppress diagnostics inside the scatter file. So, maybe 2 ideas:

1) by using the scatter file preprocessing (https://www.keil.com/support/man/docs/armclang_ref/armclang_ref_pge1362066010024.htm) a target specific macro could be used to create execution regions only when required.

2) a little dummy module could be used to create a symbol with 0 byte size for the either empty execution region. For example, the scatter file has:

RW_TEST +0 {
* (.text_test)
}

Then a little C module for Arm Compiler 6 with such content would do it:

#pragma clang diagnostic ignored "-Winvalid-noreturn"
extern void text_test_dummy( void ) ;
__attribute__((noreturn,used,section(".text_test"))) void text_test_dummy( void )
{
}

In the mapfile is then this:

Execution Region RW_TEST (Exec base: 0x20008604, Load base: 0x00001fb0, Size: 0x00000000, Max: 0xffffffff, ABSOLUTE)

Exec Addr Load Addr Size Type Attr Idx E Section Name Object

0x20008604 0x00001fb0 0x00000000 Code RO 17 .text_test text_test_dummy.o

Maybe some of this helps.