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

On 21.08.2026 12:41, Jan Dubiec wrote:
> On 21.08.2026 12:20, Jan Beulich wrote:
>> 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.
> OK, I get it. However, a user could also define _start(). :-)

Not without getting in conflict with the C spec.

Jan