From patchwork Mon Nov 21 18:07:20 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Steve Ellcey X-Patchwork-Id: 17681 Received: (qmail 112861 invoked by alias); 21 Nov 2016 18:07:39 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 112850 invoked by uid 89); 21 Nov 2016 18:07:38 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL, BAYES_00, RCVD_IN_DNSWL_NONE, SPF_HELO_PASS autolearn=ham version=3.3.2 spammy=HX-HELO:sk:NAM03-D, errnoh, UD:errno.h, errno.h X-HELO: NAM03-DM3-obe.outbound.protection.outlook.com Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Steve.Ellcey@cavium.com; Message-ID: <1479751640.14643.4.camel@caviumnetworks.com> Subject: Re: [PATCH] Allow [f]statfs64 to alias [f]statfs From: Steve Ellcey To: Andreas Schwab , Steve Ellcey CC: Date: Mon, 21 Nov 2016 10:07:20 -0800 In-Reply-To: References: <201611072213.uA7MDcpB020773@sellcey-lt.caveonetworks.com> MIME-Version: 1.0 X-ClientProxiedBy: SN1PR01CA0028.prod.exchangelabs.com (10.165.224.38) To SN2PR0701MB1069.namprd07.prod.outlook.com (10.160.59.156) X-Microsoft-Exchange-Diagnostics: 1; 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Here is my updated patch, retested on x86 and aarch64.  It defines STATFS_IS_STATFS64 to 0 on all platforms, when the ILP32 aarch code is checked in it will have a new kernel_stat.h file and that will set it to 1.  I also fixed and upated the ChangeLog entry. Steve Ellcey sellcey@caviumnetworks.com 2016-11-21  Steve Ellcey   * sysdeps/unix/sysv/linux/fstatfs64.c: Hide prototypes for fstatfs and __fstatfs.  Make them aliases of __fstatfs64 if STATFS_IS_STATFS64 is set to non-zero. * sysdeps/unix/sysv/linux/statfs64.c: Ditto for __statfs, statfs, and __statfs64. * sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c: Do not define __fstatfs and fstatfs if STATFS_IS_STATFS64 is non-zero. * sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c: Ditto for __statfs and statfs. * sysdeps/unix/sysv/linux/alpha/kernel_stat.h: Set STATFS_IS_STATFS64 to 0. * sysdeps/unix/sysv/linux/generic/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/hppa/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/ia64/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/microblaze/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/mips/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/powerpc/powerpc64/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/s390/s390-64/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/sparc/sparc32/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/sparc/sparc64/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/x86_64/kernel_stat.h: Ditto. diff --git a/sysdeps/unix/sysv/linux/alpha/kernel_stat.h b/sysdeps/unix/sysv/linux/alpha/kernel_stat.h index 6708411..d637e09 100644 --- a/sysdeps/unix/sysv/linux/alpha/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/alpha/kernel_stat.h @@ -86,3 +86,4 @@ struct glibc21_stat }; #define XSTAT_IS_XSTAT64 1 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/fstatfs64.c b/sysdeps/unix/sysv/linux/fstatfs64.c index a624de6..a95fe18 100644 --- a/sysdeps/unix/sysv/linux/fstatfs64.c +++ b/sysdeps/unix/sysv/linux/fstatfs64.c @@ -16,9 +16,18 @@ License along with the GNU C Library; if not, see . */ +/* Hide the prototypes for __fstatfs and fstatfs so that GCC will not + complain about the different function signatures if they are aliased + to __fstat64. If STATFS_IS_STATFS64 is not zero then the statfs and + statfs64 structures have an identical layout but different type names. */ + +#define __fstatfs __fstatfs_disable +#define fstatfs fstatfs_disable + #include #include #include +#include #include #include #include @@ -70,3 +79,11 @@ __fstatfs64 (int fd, struct statfs64 *buf) #endif } weak_alias (__fstatfs64, fstatfs64) + +#undef __fstatfs +#undef fstatfs + +#if STATFS_IS_STATFS64 +weak_alias (__fstatfs64, __fstatfs) +weak_alias (__fstatfs64, fstatfs) +#endif diff --git a/sysdeps/unix/sysv/linux/generic/kernel_stat.h b/sysdeps/unix/sysv/linux/generic/kernel_stat.h index 5d5f04b..ee9ff03 100644 --- a/sysdeps/unix/sysv/linux/generic/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/generic/kernel_stat.h @@ -26,3 +26,5 @@ #else # define XSTAT_IS_XSTAT64 0 #endif + +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c index be9599a..c199938 100644 --- a/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c +++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c @@ -18,8 +18,10 @@ #include #include +#include #include +#if !STATFS_IS_STATFS64 #include "overflow.h" /* Return information about the filesystem on which FD resides. */ @@ -30,3 +32,4 @@ __fstatfs (int fd, struct statfs *buf) return rc ?: statfs_overflow (buf); } weak_alias (__fstatfs, fstatfs) +#endif diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c index 1937f05..6413a54 100644 --- a/sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c +++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c @@ -18,8 +18,10 @@ #include #include +#include #include +#if !STATFS_IS_STATFS64 #include "overflow.h" /* Return information about the filesystem on which FILE resides. */ @@ -31,3 +33,4 @@ __statfs (const char *file, struct statfs *buf) } libc_hidden_def (__statfs) weak_alias (__statfs, statfs) +#endif diff --git a/sysdeps/unix/sysv/linux/hppa/kernel_stat.h b/sysdeps/unix/sysv/linux/hppa/kernel_stat.h index 9ffa3ba..a3ac53a 100644 --- a/sysdeps/unix/sysv/linux/hppa/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/hppa/kernel_stat.h @@ -31,3 +31,4 @@ struct kernel_stat { #define _HAVE_STAT64_NSEC #define XSTAT_IS_XSTAT64 0 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/ia64/kernel_stat.h b/sysdeps/unix/sysv/linux/ia64/kernel_stat.h index 2f6fbb2..9541bb5 100644 --- a/sysdeps/unix/sysv/linux/ia64/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/ia64/kernel_stat.h @@ -18,3 +18,4 @@ #define STAT_IS_KERNEL_STAT 1 #define XSTAT_IS_XSTAT64 1 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/kernel_stat.h b/sysdeps/unix/sysv/linux/kernel_stat.h index 4354d14..eecc962 100644 --- a/sysdeps/unix/sysv/linux/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/kernel_stat.h @@ -35,3 +35,4 @@ struct kernel_stat #define _HAVE_STAT64_NSEC #define XSTAT_IS_XSTAT64 0 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/microblaze/kernel_stat.h b/sysdeps/unix/sysv/linux/microblaze/kernel_stat.h index b6ae8c3..3ce58df 100644 --- a/sysdeps/unix/sysv/linux/microblaze/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/microblaze/kernel_stat.h @@ -49,3 +49,4 @@ struct kernel_stat }; #define XSTAT_IS_XSTAT64 0 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/mips/kernel_stat.h b/sysdeps/unix/sysv/linux/mips/kernel_stat.h index a41d15f..388df1b 100644 --- a/sysdeps/unix/sysv/linux/mips/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/mips/kernel_stat.h @@ -57,3 +57,4 @@ struct kernel_stat #endif #define XSTAT_IS_XSTAT64 0 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h index 0fbde98..5b76f67 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h @@ -48,3 +48,4 @@ struct kernel_stat #define _HAVE_STAT64_NSEC #define XSTAT_IS_XSTAT64 0 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/kernel_stat.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/kernel_stat.h index fce8fba..eec1ab1 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/kernel_stat.h @@ -18,3 +18,4 @@ #define STAT_IS_KERNEL_STAT 1 #define XSTAT_IS_XSTAT64 1 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/kernel_stat.h b/sysdeps/unix/sysv/linux/s390/s390-64/kernel_stat.h index 2f6fbb2..9541bb5 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/s390/s390-64/kernel_stat.h @@ -18,3 +18,4 @@ #define STAT_IS_KERNEL_STAT 1 #define XSTAT_IS_XSTAT64 1 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/kernel_stat.h b/sysdeps/unix/sysv/linux/sparc/sparc32/kernel_stat.h index eb60236..a441600 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/kernel_stat.h @@ -32,3 +32,4 @@ struct kernel_stat #define _HAVE_STAT64_NSEC #define XSTAT_IS_XSTAT64 0 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/kernel_stat.h b/sysdeps/unix/sysv/linux/sparc/sparc64/kernel_stat.h index 2a26a78..30afb55 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/kernel_stat.h @@ -45,3 +45,4 @@ struct kernel_stat64 }; #define XSTAT_IS_XSTAT64 1 +#define STATFS_IS_STATFS64 0 diff --git a/sysdeps/unix/sysv/linux/statfs64.c b/sysdeps/unix/sysv/linux/statfs64.c index de42261..4315fe5 100644 --- a/sysdeps/unix/sysv/linux/statfs64.c +++ b/sysdeps/unix/sysv/linux/statfs64.c @@ -16,9 +16,18 @@ License along with the GNU C Library; if not, see . */ +/* Hide the prototypes for __statfs and statfs so that GCC will not + complain about the different function signatures if they are aliased + to __stat64. If STATFS_IS_STATFS64 is not zero then the statfs and + statfs64 structures have an identical layout but different type names. */ + +#define __statfs __statfs_disable +#define statfs statfs_disable + #include #include #include +#include #include #include #include @@ -72,3 +81,12 @@ __statfs64 (const char *file, struct statfs64 *buf) #endif } weak_alias (__statfs64, statfs64) + +#undef __statfs +#undef statfs + +#if STATFS_IS_STATFS64 +weak_alias (__statfs64, __statfs) +weak_alias (__statfs64, statfs) +libc_hidden_ver (__statfs64, __statfs) +#endif diff --git a/sysdeps/unix/sysv/linux/x86_64/kernel_stat.h b/sysdeps/unix/sysv/linux/x86_64/kernel_stat.h index 2f6fbb2..9541bb5 100644 --- a/sysdeps/unix/sysv/linux/x86_64/kernel_stat.h +++ b/sysdeps/unix/sysv/linux/x86_64/kernel_stat.h @@ -18,3 +18,4 @@ #define STAT_IS_KERNEL_STAT 1 #define XSTAT_IS_XSTAT64 1 +#define STATFS_IS_STATFS64 0