From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: Yury Norov <ynorov@caviumnetworks.com>
Cc: libc-alpha@sourceware.org
Subject: Re: [PATCH 4/4] Consolidate Linux truncate implementations
Date: Wed, 09 Nov 2016 13:44:00 -0000 [thread overview]
Message-ID: <2e457147-ee53-7a2a-41e4-4d201b421460@linaro.org> (raw)
In-Reply-To: <0beb6ef6-486f-6a47-5743-94ce16c4365c@linaro.org>
Does anyone have any objection with this patch? If no one opposes I
would like to push it to avoid get in late near freeze.
On 25/10/2016 15:54, Adhemerval Zanella wrote:
> Ping.
>
> On 22/09/2016 16:04, Adhemerval Zanella wrote:
>>
>>
>> On 22/09/2016 12:51, Yury Norov wrote:
>>> On Thu, Sep 22, 2016 at 11:42:11AM -0300, Adhemerval Zanella wrote:
>>>>
>>>>
>>>> On 22/09/2016 11:24, Yury Norov wrote:
>>>>>> +/* Truncate PATH to LENGTH bytes. */
>>>>>> int
>>>>>> -truncate64 (const char *path, off64_t length)
>>>>>> +__truncate64 (const char *path, off64_t length)
>>>>>> {
>>>>>> - unsigned int low = length & 0xffffffff;
>>>>>> - unsigned int high = length >> 32;
>>>>>> - int result = INLINE_SYSCALL (truncate64, 3, path,
>>>>>> - __LONG_LONG_PAIR (high, low));
>>>>>> - return result;
>>>>>> + return INLINE_SYSCALL_CALL (truncate64, path,
>>>>>> + __ALIGNMENT_ARG SYSCALL_LL64 (length));
>>>>>> }
>>>>>> +weak_alias (__truncate64, truncate64)
>>>>>> +
>>>>>> +#ifdef __OFF_T_MATCHES_OFF64_T
>>>>>> +weak_alias (__truncate64, truncate);
>>>>>> +#endif
>>>>>
>>>>> It seems you forgot weak_alias (__truncate64, __truncate);
>>>>>
>>>>
>>>> I do not think it requires to add __truncate alias since glibc currently
>>>> does have internal calls to truncate.
>>>
>>> Sorry, I was meaning __ftruncate:
>>> /home/yury/work/toolchain/build-glibc-aarch64-thunderx-linux-gnu-mabi-ilp32/libc_pic.os:
>>> In function `internal_fallocate':
>>> /home/yury/work/toolchain/gits/glibc/io/../sysdeps/posix/posix_fallocate.c:64:
>>> undefined reference to `__ftruncate'
>>>
>>> Truncate looks correct.
>>> The fix is like this to me:
>>>
>>> --
>>> diff --git a/sysdeps/unix/sysv/linux/ftruncate64.c b/sysdeps/unix/sysv/linux/ftruncate64.c
>>> index 914ce67..4a00db5 100644
>>> --- a/sysdeps/unix/sysv/linux/ftruncate64.c
>>> +++ b/sysdeps/unix/sysv/linux/ftruncate64.c
>>> @@ -33,5 +33,6 @@ __ftruncate64 (int fd, off64_t length)
>>> weak_alias (__ftruncate64, ftruncate64)
>>>
>>> #ifdef __OFF_T_MATCHES_OFF64_T
>>> +weak_alias (__ftruncate64, __ftruncate)
>>> weak_alias (__ftruncate64, ftruncate);
>>> #endif
>>>
>>
>> Ah right, the fallback posix_fallocate implementation. I will add this to
>> the patch, thanks.
>>
next prev parent reply other threads:[~2016-11-09 13:44 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-20 15:02 [PATCH 0/4] Linux lseek and {f}truncate syscall consolidation Adhemerval Zanella
2016-09-20 15:02 ` [PATCH 1/4] Add INTERNAL_SYSCALL_CALL Adhemerval Zanella
2016-09-20 21:36 ` Florian Weimer
2016-09-21 18:00 ` Adhemerval Zanella
2016-09-21 19:22 ` Florian Weimer
2016-09-22 13:43 ` Adhemerval Zanella
2016-09-22 20:34 ` Florian Weimer
2016-09-23 14:16 ` Adhemerval Zanella
2016-09-23 20:39 ` Florian Weimer
2016-09-20 15:02 ` [PATCH v3 2/4] Consolidate lseek/lseek64/llseek implementations Adhemerval Zanella
2016-10-11 14:40 ` Adhemerval Zanella
2016-10-25 17:54 ` Adhemerval Zanella
2016-11-04 16:23 ` Adhemerval Zanella
2016-11-08 19:02 ` Steve Ellcey
2016-09-20 15:02 ` [PATCH 4/4] Consolidate Linux truncate implementations Adhemerval Zanella
2016-09-22 14:25 ` Yury Norov
2016-09-22 14:42 ` Adhemerval Zanella
2016-09-22 15:52 ` Yury Norov
2016-09-22 19:05 ` Adhemerval Zanella
2016-10-25 17:55 ` Adhemerval Zanella
2016-11-09 13:44 ` Adhemerval Zanella [this message]
2016-09-20 15:02 ` [PATCH 3/4] Consolidate Linux ftruncate implementations Adhemerval Zanella
2016-10-11 14:41 ` Adhemerval Zanella
2016-10-25 17:54 ` Adhemerval Zanella
2016-11-09 13:44 ` Adhemerval Zanella
2016-11-09 15:33 ` Andreas Schwab
2016-11-09 17:24 ` Adhemerval Zanella
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2e457147-ee53-7a2a-41e4-4d201b421460@linaro.org \
--to=adhemerval.zanella@linaro.org \
--cc=libc-alpha@sourceware.org \
--cc=ynorov@caviumnetworks.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).