Re: Using -ffunction-sections and -p

[Sriraman Tallam <tmsriram at google dot com>]

On Sun, Nov 4, 2012 at 9:03 PM, Ian Lance Taylor <iant@google.com> wrote:
> On Sun, Nov 4, 2012 at 8:04 PM, Sriraman Tallam <tmsriram@google.com> wrote:
>>
>>    Currently, using -ffunction-sections and -p together results in a
>> warning. I ran into this problem when compiling the kernel. This is
>> discussed in this thread:
>>
>> http://gcc.gnu.org/ml/gcc-help/2008-11/msg00128.html
>>
>> Ian's reply suggests this warning is no longer necessary and can be
>> removed. Is this patch alright to commit with all tests passing:
>>
>>         * toplev.c (process_options): Do not warn when -ffunction-sections
>>           and -fprofile are used together.
>
> In that thread Jeff suggested that this be tested on Solaris and PA.
> I don't know how to test on PA, but could somebody test the patch on
> Solaris?

Is it reasonable to gate this using a target hook and start allowing
this on selected targets? For instance, i386 does not seem to have a
problem with this.

Thanks,
-Sri.

>
> Ian