[Bug ld/32240] warning: relocation against `_Z5test2v' in read-only section

[federico.kircheis at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=32240

--- Comment #4 from federico.kircheis at gmail dot com <federico.kircheis at 
gmail dot com> ---
Hello @Nick 

Thank you for the constructive feedback.

>   What is your target architecture ?

I'm using debian amd64, thus it is strange that you do not get the same warning
on your platform.


> Of course it is only a warning and you are free to ignore it.

Yes; but I would prefer to fix the root cause, since without a linker script I
do not get any warnings, or write the script in a way that does not generate a
warning in the first place (since the same warning could come from somewere
else and should not be ignored)
And if there is no error, then I would appreciate if the tooling improves it
diagnostics ;)


> [...] is going to end up creating *two* .rodata sections in the output

Ah, I thought too that redefining .rodata might not have been a good idea; on
the other hand, I did not like the idea to add a new section just because I
needed two symbols...


> This happens because the tests section is being placed after the .text 
> section. [...] To solve this, try placing the tests section after the .data 
> section instead of the .text section.


Thank you, for the hint.
With the following script

----
SECTIONS
{
  tests : {
    PROVIDE(tests_begin = .);
    KEEP(*(.tests))
    PROVIDE(tests_end = .);
  }
}
INSERT AFTER .data;
----

I do not get any warning!

If I add the READONLY (which I would prefer to have, since the data is
initialized and not modified anymore), then I get the following warning again

----
/usr/bin/ld: /tmp/cc2ZjVUJ.o: warning: relocation in read-only section `.tests'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
----




>   You may find that adding -Wl,-z,notext to the command line will silence the 
> warning.

Confirmed, it silences the warning.

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