[PATCH] build: Use -frandom-seed=0

Chris Johns chrisj at rtems.org
Wed Feb 28 23:29:34 UTC 2024


On 28/2/2024 6:24 pm, Sebastian Huber wrote:
> On 28.02.24 06:34, Chris Johns wrote:
>> The manual says:
>>
>>    The string can either be a number (decimal, octal or hex) or
>>    an arbitrary string (in which case it’s converted to a number by
>>    computing CRC32).
>>
>>    The string should be different for every file you compile.
>>
>> I take this to mean the option `-frandom-seed=0` uses `0` as a number however it
>> is the same for every file and the manual clearly says it must be different?
> 
> Using -frandom-seed=0 seems to be quite common on the internet. The random seed
> is rarely used in GCC. The only use case in RTEMS I found is related to the gcov
> code coverage instrumentation.

There are lots of things that are common on the internet I ignore ;)

Is this a bug in the documentation?

Chris


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