[PATCH] h8300-elf: ld: Use USER_LABEL_PREFIX when generating linker scripts.

[Jan Beulich]

On 21.08.2026 12:06, Jan Dubiec wrote:
> On 21.08.2026 11:18, Jan Beulich wrote:
> [...]
>> Aiui also setting ENTRY is to not alter the default entry point name. However,
>> with USER_LABEL_PREFIX being underscore, can the entry point sensibly have just
>> a single underscore?
> 
> In the case of the H8 family, this is possible because the _start symbol 
> is defined in assembly, specifically in newlib/libc/sys/h8300hms/crt0.S 
> in the newlib sources.
> 
> That said, I have an implementation using the default entry symbol (i.e. 
> __start) stashed in my Git repository. It requires changes to 17 files 
> in ld/testsuite/ld-h8300, as well as a change to crt0.S in newlib.
> 
> I decided to take the shorter and simpler approach, but I'm open to 
> suggestions, as the other approach seems somewhat more elegant (although 
> that doesn't necessarily mean it's better).

It's not just more elegant, it's also the correct one. As it stands, user
code defining a non-static C function start() will collide with the (global)
entry point symbol.

Jan