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Recent Linux kernels added support for the CLOCK_MONOTONIC_RAW,
CLOCK_REALTIME_COARSE, and CLOCK_MONOTONIC_COARSE clocks.
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The old implementation uses fd 0 to determine the login TTY. This
was needed because using /dev/tty it is not possible to deduce the
login TTY. For some time now there is the pseudo-file
/proc/self/loginuid which directly helps us to find the user. Prefer
using this file. It also works if stdin is closed, redirected, or
re-opened.
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If the OSABI is generic we should not allow the ABI version to be nonzero.
Move all the new functionality into Linux-specific files.
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msgrcv() does not work on sparc64, as it passes the 6th argument using
the ipc kludge, while the kernel waits for a 6 arguments syscall. This
patches fixes the problem by using a sparc64 specific version of
msgrcv.c.
2010-03-03 Aurelien Jarno <aurelien@aurel32.net>
* sysdeps/unix/sysv/linux/sparc/sparc64/msgrcv.c: New file.
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test-makecontext3 fails because we fill in the argument
stack slots past the 5th using the wrong index.
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The header conformance testing code needed extending for XPG7. This
exposed a few bugs in the headers. There are more changes to come.
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Support for this type of PTY was removed in the 2.1.115 kernel. Just
use __LINUX_KERNEL_VERSION to determine when we can drop the compat code.
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grantpt was performing two consecutive calls to stat with the same
file name. Avoid this by creating a special version of the ptsname
function which allows to pass the stat result back to the caller.
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The pt_chown program is completely transparently called. It might
not be able to live with the various file descriptors the program
has open at the time of the call (e.g., under SELinux). Close all
but the needed descriptor and connect stdin, stdout, and stderr
with /dev/null. pt_chown shouldn't print anything when called to
do real work.
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POSIX.1-2008 made stat.st_[acm]tim mandatory.
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The ntp_gettime implementation of NTP exports the tai field the kernel
now produces. This requires an ABI change since the ntptimeval structure
changed. Upstream kept the same name, there is nothing to do. This
patch changes the ntptimeval structure but keeps the old ntp_gettime
definition. A new ntp_gettimex function which is transparently invoked
through the old name is introduced. This has the advantage that even
object files can remain compatible. This wouldn't be the case if
symbol versioning would be used to overload the name ntp_gettime.
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But maintain compatiblity for 2.11.
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I've noticed that sync_file_range is a stub on ppc/ppc64.
The kernel on these arches provides sync_file_range2 syscall with swapped
parameters.
The following completely untested patch ought to fix this.
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Fix building on x86 when older linux headers lack __NR_fallocate define.
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Due to alignment of 64bit parameters there is a dummy second argument.
But other than that the syscall arguments are directly mapped to the
function arguments.
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As reported in http://bugzilla.redhat.com/533063 , preadv/pwritev prototypes
are wrong on 32-bit arches with -D_FILE_OFFSET_BITS=64 and as I've just
found, fallocate is wrong too.
The problem is that only off_t is remapped to the 64-bit type transparently,
__off_t is not.
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When passed an empty string for the filename, the compat code
using /proc in all *at functions did the wrong thing.
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The implementation of posix_openpt on Linux can fail in a few extra
ways if the appropriate pseudo filesystems are not mounted etc. In
some of these cases we have to explicitly set errno.
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