diff options
| -rw-r--r-- | ChangeLog | 10 | ||||
| -rw-r--r-- | sysdeps/posix/sysconf.c | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 5 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/tst-sysconf-iov_max-uapi.c | 27 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c | 40 |
5 files changed, 82 insertions, 1 deletions
@@ -1,3 +1,13 @@ +2017-10-20 Florian Weimer <fweimer@redhat.com> + + [BZ #22321] + sysconf: Fix missing definition of UIO_MAXIOV on Linux. + * sysdeps/posix/sysconf.c: Include <sys/uio.h>. + * sysdeps/unix/sysv/linux/Makefile (tests): Add tst-sysconf-iov_max. + (tst-sysconf-iov_max): Link with tst-sysconf-iov_max-uapi.o. + * sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c: New file. + * sysdeps/unix/sysv/linux/tst-sysconf-iov_max-uapi.c: Likewise. + 2017-10-19 H.J. Lu <hongjiu.lu@intel.com> * sysdeps/i386/fpu/libm-test-ulps: Regenerated. diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c index a95e1b3f05..254f87c437 100644 --- a/sysdeps/posix/sysconf.c +++ b/sysdeps/posix/sysconf.c @@ -29,6 +29,7 @@ #include <sys/stat.h> #include <sys/sysinfo.h> #include <sys/types.h> +#include <sys/uio.h> #include <regex.h> #define NEED_SPEC_ARRAY 0 diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 30bd167bae..0c8a009b5e 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -50,7 +50,7 @@ sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \ bits/siginfo-arch.h bits/siginfo-consts-arch.h tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \ - tst-quota tst-sync_file_range test-errno-linux + tst-quota tst-sync_file_range test-errno-linux tst-sysconf-iov_max # Generate the list of SYS_* macros for the system calls (__NR_* # macros). The file syscall-names.list contains all possible system @@ -95,6 +95,9 @@ $(objpfx)tst-syscall-list.out: \ $(objpfx)tst-syscall-list-sys.list $(BASH) $^ $(AWK) > $@; $(evaluate-test) +# Separate object file for access to the constant from the UAPI header. +$(objpfx)tst-sysconf-iov_max: $(objpfx)tst-sysconf-iov_max-uapi.o + endif # $(subdir) == misc ifeq ($(subdir),time) diff --git a/sysdeps/unix/sysv/linux/tst-sysconf-iov_max-uapi.c b/sysdeps/unix/sysv/linux/tst-sysconf-iov_max-uapi.c new file mode 100644 index 0000000000..1240b846e6 --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-sysconf-iov_max-uapi.c @@ -0,0 +1,27 @@ +/* Check IOV_MAX definition: Helper function to capture UAPI header value. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +/* Use a separate function to avoid header compatibility issues. */ + +#include <linux/uio.h> + +long +uio_maxiov_value (void) +{ + return UIO_MAXIOV; +} diff --git a/sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c b/sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c new file mode 100644 index 0000000000..dfdf3da484 --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c @@ -0,0 +1,40 @@ +/* Check IOV_MAX definition for consistency (bug 22321). + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +/* Defined in tst-sysconf-iov_max-uapi.c. */ +long uio_maxiov_value (void); + + +#include <limits.h> +#include <support/check.h> +#include <sys/uio.h> +#include <unistd.h> + +static int +do_test (void) +{ + TEST_VERIFY (_XOPEN_IOV_MAX == 16); /* Value required by POSIX. */ + TEST_VERIFY (uio_maxiov_value () >= _XOPEN_IOV_MAX); + TEST_VERIFY (IOV_MAX == uio_maxiov_value ()); + TEST_VERIFY (UIO_MAXIOV == uio_maxiov_value ()); + TEST_VERIFY (sysconf (_SC_UIO_MAXIOV) == uio_maxiov_value ()); + TEST_VERIFY (sysconf (_SC_IOV_MAX) == uio_maxiov_value ()); + return 0; +} + +#include <support/test-driver.c> |