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Re: [PATCH 4/6] Cleanup Linux sigqueue implementation
On 05/11/2017 19:30, Zack Weinberg wrote:
> On Fri, Nov 3, 2017 at 5:40 PM, Adhemerval Zanella
> <adhemerval.zanella@linaro.org> wrote:
>> This patch simplify Linux sigqueue implementation by assuming
>> __NR_rt_sigqueueinfo existence due minimum kernel requirement.
>>
>> Checked on x86_64-linux-gnu.
>>
>> * sysdeps/unix/sysv/linux/sigqueue.c (__sigqueue): Asssume
>> __NR_rt_sigqueueinfo.
>
> OK, but please state in the commit message the oldest kernel version
> that provided __NR_rt_sigqueueinfo on all architectures.
>
> zw
>
I am trying to find out exactly when realtime signals were introduced
on Linux and it seems it pre-dates git and so Linux 2.6.12 (commit
1da177e4 added both the headers and the systbl linkage on alpha
for instance). I think stating it is present on Linux 2.6 should
be suffice.