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The generic version is straightforward. For Hurd, its nanosleep
implementation is moved to clock_nanosleep with adjustments from
generic unix implementation.
The generic clock_nanosleep unix version is also removed since
it calls nanosleep.
Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
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Since gettimeofday will shortly be implemented in terms of
clock_gettime on all platforms, internal code should use clock_gettime
directly; in addition to removing a layer of indirection, this will
allow us to remove the PLT-bypass gunk for gettimeofday. (We can't
quite do that yet, but it'll be coming later in this patch series.)
In many cases, the changed code does fewer conversions.
The changed code always assumes __clock_gettime (CLOCK_REALTIME)
cannot fail. Most of the call sites were assuming gettimeofday could
not fail, but a few places were checking for errors. POSIX says
clock_gettime can only fail if the clock constant is invalid or
unsupported, and CLOCK_REALTIME is the one and only clock constant
that's required to be supported. For consistency I grepped the entire
source tree for any other places that checked for errors from
__clock_gettime (CLOCK_REALTIME), found one, and changed it too.
(For the record, POSIX also says gettimeofday can never fail.)
(It would be nice if we could declare that GNU systems will always
support CLOCK_MONOTONIC as well as CLOCK_REALTIME; there are several
places where we are using CLOCK_REALTIME where _MONOTONIC would be
more appropriate, and/or trying to use _MONOTONIC and then falling
back to _REALTIME. But the Hurd doesn't support CLOCK_MONOTONIC yet,
and it looks like adding it would involve substantial changes to
gnumach's internals and API. Oh well.)
A few Hurd-specific files were changed to use __host_get_time instead
of __clock_gettime, as this seemed tidier. We also assume this cannot
fail. Skimming the code in gnumach leads me to believe the only way
it could fail is if __mach_host_self also failed, and our
Hurd-specific code consistently assumes that can't happen, so I'm
going with that.
With the exception of support/support_test_main.c, test cases are not
modified, mainly because I didn't want to have to figure out which
test cases were testing gettimeofday specifically.
The definition of GETTIME in sysdeps/generic/memusage.h had a typo and
was not reading tv_sec at all. I fixed this. It appears nobody has been
generating malloc traces on a machine that doesn't have a superseding
definition.
There are a whole bunch of places where the code could be simplified
by factoring out timespec subtraction and/or comparison logic, but I
want to keep this patch as mechanical as possible.
Checked on x86_64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu,
powerpc64-linux-gnu, powerpc-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
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The valid_nanoseconds () static inline function has been introduced to
check if nanoseconds value is in the correct range - greater or equal to
zero and less than 1000000000.
The explicit #include <time.h> has been added to files where it was
missing.
The __syscall_slong_t type for ns has been used to avoid issues on x32.
Tested with:
- scripts/build-many-glibcs.py
- make PARALLELMFLAGS="-j12" && make PARALLELMFLAGS="-j12" xcheck on x86_64
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Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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* hurd/sigunwind.c (_hurdsig_longjmp_from_handler): Destroy reply port
of interrupted RPC instead of restoring it.
* sysdeps/i386/setjmp.S (__sigsetjmp): Add hidden_def.
* sysdeps/mach/hurd/accept4.c (__libc_accept4): Remove
libc_hidden_def.
* sysdeps/mach/hurd/dl-sysdep.c (__libc_stack_end): Add relro
attribute, define rtld_hidden_data_def.
* sysdeps/mach/hurd/fxstatat64.c (__fxstatat64): Add libc_hidden_def.
* sysdeps/mach/hurd/if_index.c (__if_freenameindex): Add
libc_hidden_def.
(if_freenameindex): Add libc_hidden_weak.
(if_nameindex): Add libc_hidden_weak.
* sysdeps/mach/hurd/open.c (_open64): Rename libc_hidden_weak into
__open64.
* sysdeps/mach/hurd/sigwait.c (__sigwait): Add libc_hidden_def.
* sysdeps/mach/hurd/xmknodat.c (__xmknodat): Add libc_hidden_def.
* sysdeps/mach/nanosleep.c: Include <time.h>
(__nanosleep): Rename to __libc_nanosleep.
(__nanosleep): Add weak_alias.
(nanosleep): Update alias.
* sysdeps/mach/hurd/configure.ac (NO_HIDDEN): Do not define.
* sysdeps/mach/hurd/configure: Regenerate.
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* include/time.h: Add libc_hidden_proto for __nanosleep.
* sysdeps/generic/nanosleep.c: Add libc_hidden_def for __nanosleep.
* sysdeps/mach/nanosleep.c: Likewise.
* sysdeps/unix/sysv/aix/nanosleep.c: Likewise.
* sysdeps/unix/sysv/linux/syscalls.list: Add __GI___nanosleep alias.
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(headers): Add sys/sendfile.h to the list.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Don't add it here.
* sysdeps/unix/sysv/linux/sys/sendfile.h: Moved to ...
* io/sys/sendfile.h: ... here.
* sysdeps/generic/sendfile.c: New file.
* sysdeps/generic/sendfile64.c: New file.
* sysdeps/unix/sysv/linux/Versions (GLIBC_2.1, GLIBC_2.3):
Move sendfile, sendfile64 to ...
* io/Versions (GLIBC_2.1, GLIBC_2.3): ... here.
* sysdeps/mach/hurd/sendfile.c: New file.
* sysdeps/mach/hurd/sendfile64.c: New file.
* sysdeps/mach/nanosleep.c: New file.
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