Re: [PATCH] Remove fno-unit-at-a-time make variable

[Adhemerval Zanella <adhemerval.zanella@linaro.org>]

On 05/04/2022 17:26, Florian Weimer wrote:
> * Adhemerval Zanella:
> 
>> On 05/04/2022 14:53, Florian Weimer wrote:
>>> * Adhemerval Zanella via Libc-alpha:
>>>
>>>> This is not what I am seeing on my clang branch, where clang with integrated
>>>> moves the global asm directives to the top of the file.  And it makes 
>>>> check-abi fail due the _sys_errlist/sys_errlist being with wrong value.
>>>
>>> You can move the directives to the bottom of the file by creating a
>>> temporary .s file and #include that from a wrapper .S file that
>>> #includes the .s file.
>>
>> Not sure I am following your suggestion here, do you mean get the -S
>> output file from compiler?
> 
> Yes, H.J. did that in earlier patches.  But I didn't like it back then. 8-p

For dl-debug-symbols.S? I might take it as an example.

> 
>> Making an assembly file is really tricky here because _sys_errlist_internal
>> contains internal gap (the errno values are not strictly sequential). The
>> compiler handles by adding '.zero' commands, which is not easily.  I think
>> we might generate it though a script.
> 
> I think the input file is already generated by a script.

No, what is scripted is the tst-errno-manual (which checks the errlist.h
against manual/errno.texi).