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Re: [PATCH 1/3] Adjust kernel-features.h defaults for recvmsg and sendmsg
- From: Andreas Schwab <schwab at linux-m68k dot org>
- To: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
- Cc: Joseph Myers <joseph at codesourcery dot com>, libc-alpha at sourceware dot org
- Date: Wed, 30 Mar 2016 00:16:15 +0200
- Subject: Re: [PATCH 1/3] Adjust kernel-features.h defaults for recvmsg and sendmsg
- Authentication-results: sourceware.org; auth=none
- References: <1459175641-12520-1-git-send-email-adhemerval dot zanella at linaro dot org> <1459175641-12520-2-git-send-email-adhemerval dot zanella at linaro dot org> <alpine dot DEB dot 2 dot 10 dot 1603292128070 dot 15654 at digraph dot polyomino dot org dot uk> <56FAF965 dot 3000402 at linaro dot org>
Adhemerval Zanella <adhemerval.zanella@linaro.org> writes:
> On 29-03-2016 18:32, Joseph Myers wrote:
>> On Mon, 28 Mar 2016, Adhemerval Zanella wrote:
>>
>>> +/* Support for recvmsg and sendmsg was added in 2.6.12 in most architectures,
>>> + with some added later (for instance 2.6.37 for powerpc) and for some only
>>> + through syscall (with wire-up syscall added in later versionsi). Define
>>> + __ASSUME_RECVMSG_SYSCALL and __ASUME_SENDMSG_SYSCALL if glibc uses direct
>>> + syscall, otherwise glibc will use socketcall. */
>>
>> This comment is a mess.
>>
>> * I'm doubtful of the "added in 2.6.12". Do you actually mean not in
>> 2.6.11 as verified by comparing 2.6.11 and 2.6.12, or do you mean that
>> 2.6.12 is the first release *in git* with the syscalls (for the trivial
>> reason that it was the first release in git at all)?
>
> Later, since I did not compare against 2.6.11 (only checked the git history).
See <git://git.kernel.org/pub/scm/linux/kernel/git/tglx/history> for
earlier history.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
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