From: Cyril Hrubis <chrubis@suse.cz>
To: David Laight <David.Laight@ACULAB.COM>
Cc: 'David Howells' <dhowells@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-api@vger.kernel.org" <linux-api@vger.kernel.org>,
"ltp@lists.linux.it" <ltp@lists.linux.it>,
"libc-alpha@sourceware.org" <libc-alpha@sourceware.org>,
"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"arnd@arndb.de" <arnd@arndb.de>
Subject: Re: [PATCH] uapi: Make __{u,s}64 match {u,}int64_t in userspace
Date: Mon, 29 Nov 2021 12:58:53 +0100 [thread overview]
Message-ID: <YaTAffbvzxGGsVIv@yuki> (raw)
In-Reply-To: <ff8fc4470c8f45678e546cafe9980eff@AcuMS.aculab.com>
Hi!
> > > This changes the __u64 and __s64 in userspace on 64bit platforms from
> > > long long (unsigned) int to just long (unsigned) int in order to match
> > > the uint64_t and int64_t size in userspace.
>
> That is a massive UAPI change you can't do.
Understood.
However it can still be changed if user asks for it explicitly right?
What about guarding the change with __STDINT_COMPATIBLE_TYPES__ as:
#if defined(__STDINT_COMPATIBLE_TYPES__)
# include <stdint.h>
typedef __u64 uint64_t;
...
#else
# include <asm-generic/int-ll64.h>
#endif
--
Cyril Hrubis
chrubis@suse.cz
WARNING: multiple messages have this Message-ID (diff)
From: Cyril Hrubis <chrubis@suse.cz>
To: David Laight <David.Laight@ACULAB.COM>
Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"libc-alpha@sourceware.org" <libc-alpha@sourceware.org>,
"arnd@arndb.de" <arnd@arndb.de>,
"linux-api@vger.kernel.org" <linux-api@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
'David Howells' <dhowells@redhat.com>,
"ltp@lists.linux.it" <ltp@lists.linux.it>
Subject: Re: [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t in userspace
Date: Mon, 29 Nov 2021 12:58:53 +0100 [thread overview]
Message-ID: <YaTAffbvzxGGsVIv@yuki> (raw)
In-Reply-To: <ff8fc4470c8f45678e546cafe9980eff@AcuMS.aculab.com>
Hi!
> > > This changes the __u64 and __s64 in userspace on 64bit platforms from
> > > long long (unsigned) int to just long (unsigned) int in order to match
> > > the uint64_t and int64_t size in userspace.
>
> That is a massive UAPI change you can't do.
Understood.
However it can still be changed if user asks for it explicitly right?
What about guarding the change with __STDINT_COMPATIBLE_TYPES__ as:
#if defined(__STDINT_COMPATIBLE_TYPES__)
# include <stdint.h>
typedef __u64 uint64_t;
...
#else
# include <asm-generic/int-ll64.h>
#endif
--
Cyril Hrubis
chrubis@suse.cz
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2021-11-29 11:59 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-22 16:43 [PATCH] uapi: Make __{u,s}64 match {u,}int64_t in userspace Cyril Hrubis
2021-11-22 16:43 ` [LTP] " Cyril Hrubis
2021-11-22 16:51 ` Alejandro Colomar (mailing lists)
2021-11-22 16:51 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Alejandro Colomar (mailing lists)
2021-11-22 20:48 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Arnd Bergmann
2021-11-22 20:48 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Arnd Bergmann
2021-11-23 9:14 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Cyril Hrubis
2021-11-23 9:14 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Cyril Hrubis
2021-11-23 14:18 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Arnd Bergmann
2021-11-23 14:18 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Arnd Bergmann
2021-11-23 19:50 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Florian Weimer
2021-11-23 19:50 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Florian Weimer
2021-11-24 10:17 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Alejandro Colomar (man-pages)
2021-11-24 10:17 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Alejandro Colomar (man-pages)
2021-11-22 22:19 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Zack Weinberg
2021-11-22 22:19 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Zack Weinberg
2021-11-23 9:15 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Cyril Hrubis
2021-11-23 9:15 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Cyril Hrubis
2021-12-02 15:34 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Rich Felker
2021-12-02 15:34 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Rich Felker
2021-12-02 23:29 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Rich Felker
2021-12-02 23:29 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Rich Felker
2021-12-02 23:43 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Adhemerval Zanella
2021-12-02 23:43 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Adhemerval Zanella
2021-12-03 0:10 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Zack Weinberg
2021-12-03 0:10 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Zack Weinberg
2021-12-03 12:32 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Adhemerval Zanella
2021-12-03 12:32 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Adhemerval Zanella
2021-12-03 12:54 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Alejandro Colomar (man-pages)
2021-12-03 12:54 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Alejandro Colomar (man-pages)
2021-11-23 16:47 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " David Howells
2021-11-23 16:47 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " David Howells
2021-11-23 16:58 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " David Laight
2021-11-23 16:58 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " David Laight
2021-11-29 11:58 ` Cyril Hrubis [this message]
2021-11-29 11:58 ` Cyril Hrubis
2021-11-29 14:34 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Arnd Bergmann
2021-11-29 14:34 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Arnd Bergmann
2021-12-02 14:55 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Zack Weinberg
2021-12-02 14:55 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Zack Weinberg
2021-12-02 15:01 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " David Howells
2021-12-02 15:01 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " David Howells
2021-12-02 20:48 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Zack Weinberg
2021-12-02 20:48 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Zack Weinberg
2021-12-08 15:33 ` [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Cyril Hrubis
2021-12-08 15:33 ` [LTP] [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Cyril Hrubis
2022-06-17 12:13 ` Ping: [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Alejandro Colomar
2022-06-17 12:13 ` [LTP] Ping: [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Alejandro Colomar
2022-06-17 15:04 ` Ping: [PATCH] uapi: Make __{u,s}64 match {u,}int64_t " Cyril Hrubis
2022-06-17 15:04 ` [LTP] Ping: [PATCH] uapi: Make __{u, s}64 match {u, }int64_t " Cyril Hrubis
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