[PATCH] Add startswith function and use it instead of CONST_STRNEQ.

Luis Machado luis.machado@linaro.org
Fri Mar 26 11:44:57 GMT 2021


On 3/25/21 7:31 PM, Mike Frysinger wrote:
> On 25 Mar 2021 16:47, Luis Machado wrote:
>> On 3/25/21 8:54 AM, Alan Modra wrote:
>>> On Thu, Mar 25, 2021 at 07:53:04AM -0300, Luis Machado wrote:
>>>> On 3/22/21 7:56 PM, Alan Modra wrote:
>>>>> On Mon, Mar 22, 2021 at 01:13:00PM -0300, Luis Machado wrote:
>>>>>> Just FTR, I'm seeing breakage in sim/aarch64 and sim/arm. Both are
>>>>>> complaining about "-Werror=implicit-function-declaration" regarding strncmp
>>>>>> and strlen.
>>>>>>
>>>>>> Is this the breakage you're talking about? Just so I know what to expect
>>>>>> when it gets fixed.
>>>>>
>>>>> Yes.
>>>>>
>>>>
>>>> Thanks. Are there plans to address this or should I come up with a patch?
>>>
>>> I posted a patch here
>>> https://sourceware.org/pipermail/binutils/2021-March/115863.html
>>> It's been tested with gdb, sim and binutils builds.
>>>
>>> Tom offered to solve the problem himself, so I'm waiting on that or
>>> for someone in the gdb camp to review my patch.  Since I messed this
>>> up in the first place by taking a comment by Tom as a go-ahead rather
>>> than first posting a patch for proper review by gdb maintainers, I'm
>>> being a little cautious in committing the above patch.
>>>
>>
>> I applied the above patch to today's master binutils-gdb and gave
>> configure's --enable-targets=all a try, but I ran into the following:
>>
>> In file included from ../../../repos/binutils-gdb/bfd/archive.c:135:
>> ./bfd.h:568:1: error: redefinition of ‘startswith’
>>     568 | startswith (const char *str, const char *prefix)
>>         | ^~~~~~~~~~
>> In file included from ../../../repos/binutils-gdb/bfd/sysdep.h:122,
>>                    from ../../../repos/binutils-gdb/bfd/archive.c:134:
>> ../../../repos/binutils-gdb/bfd/../include/str-util.h:23:1: note:
>> previous definition of ‘startswith’ was here
>>      23 | startswith (const char *str, const char *prefix)
>>         | ^~~~~~~~~~
> 
> Alan's patch didn't include the regenerated bfd.h inputs, so you'll
> have to do that on your side.
> -mike
> 

Oops. Regenerated now. I gave it a try again and it worked OK.


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