History log of /haiku/src/system/kernel/real_time_clock.cpp
Revision Date Author Comments
# 208c3236 07-Jul-2018 Jérôme Duval <jerome.duval@gmail.com>

real_time_clock: fix _user_get_timezone() after 6ad3d252128227b52c0fbba69b64c693cb488cac

6ad3d252128227b52c0fbba69b64c693cb488cac changed the timezoneOffset type from
time_t to int32 without adjusting the user_memcpy size. Harmless as the
function is hardly used with a non-null argument.


# db9b70ee 07-May-2018 Jérôme Duval <jerome.duval@gmail.com>

kernel: add a compatibility commpage on x86_64.

* x86 uses a commpage with 32-bit addresses, incompatible with the one used for
x86_64. For this reason, a compatibility commpage is needed to support a 32-bit
userland on x86_64.
* define ADDRESS_TYPE as a macro for addr_t (default) or uint32 (for the 32-bit
commpage).
* team_create_thread_start_internal() will use clone_commpage_area() with
KERNEL_USER_DATA_BASE or clone_commpage_compat_area() with
KERNEL_USER32_DATA_BASE, to setup the correct commpage.
* real_time_clock (in compatibility mode) also updates the compatibility
commpage with real time data.

Change-Id: I61605077ce0beabab4439ef54edd1eae26f26fd2


# 7d8eb4d7 16-Nov-2017 Augustin Cavalier <waddlesplash@gmail.com>

time: Address review comments.

* Use ENOSYS not B_DONT_DO_THAT (thanks korli)
* Use unsigned long not uint64 (thanks axeld)


# 9a50e01e 15-Nov-2017 Augustin Cavalier <waddlesplash@gmail.com>

set_real_time_clock: Change parameter from uint32 to uint64.

This should have been done along with the time_t change, but I forgot
to check this then.

Technically this breaks ABI against BeOS, but:
1. BeOS used an int32, so we'd already slightly broken ABI here
2. Only one thing at HaikuArchives (VMwareAddons) and one recipe at HaikuPorts
(samba) uses this function at all.

If it turns out some critical BeOS app uses this, then I guess we can enclose
GCC2 guards around it, but since I can't find any evidence of that, I'm
pushing it without them for now.


# 6ad3d252 05-Jun-2017 Augustin Cavalier <waddlesplash@gmail.com>

real_time_clock: Change _user_{get|set}_timezone argument to int32.

Both the user-mode syscalls.h and the kernel-mode one define it
as an int32, not a time_t, and as it's a timezone offset not
an actual time, there's no reason it needs to be one.


# 294711f9 27-Jun-2012 Alex Smith <alex@alex-smith.me.uk>

Changed {,u}int64 to be long rather than long long on x86_64.


# 0e88a887 13-Jun-2012 Alex Smith <alex@alex-smith.me.uk>

First round of 64-bit safety fixes in the kernel.

* Most of this is incorrect printf format strings. Changed all strings
causing errors to use the B_PRI* format string definitions, which
means the strings should be correct across all platforms.
* Some other fixes for errors, casts required, etc.


# 24df6592 11-Jun-2011 Ingo Weinhold <ingo_weinhold@gmx.de>

Merged signals-merge branch into trunk with the following changes:
* Reorganized the kernel locking related to threads and teams.
* We now discriminate correctly between process and thread signals. Signal
handlers have been moved to teams. Fixes #5679.
* Implemented real-time signal support, including signal queuing, SA_SIGINFO
support, sigqueue(), sigwaitinfo(), sigtimedwait(), waitid(), and the addition
of the real-time signal range. Closes #1935 and #2695.
* Gave SIGBUS a separate signal number. Fixes #6704.
* Implemented <time.h> clock and timer support, and fixed/completed alarm() and
[set]itimer(). Closes #5682.
* Implemented support for thread cancellation. Closes #5686.
* Moved send_signal() from <signal.h> to <OS.h>. Fixes #7554.
* Lots over smaller more or less related changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42116 a95241bf-73f2-0310-859d-f6bbb57e9c96


# dbe1e23a 16-Aug-2010 Oliver Tappe <zooey@hirschkaefer.de>

Optimised passing around of timezone a bit
* _kern_[sg]et_timezone() now accepts/passes out the timezone name, too
* adjust Time preflet and clockconfig to pass the timezone name into the kernel
when calling _kern_set_timezone()
* ajust implementation of tzset() to fetch the timezone name from the kernel
via _kern_get_timezone() instead of reading 'libroot_timezone_info'
* the Time preflet no longer writes 'libroot_timezone_info'


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38164 a95241bf-73f2-0310-859d-f6bbb57e9c96


# e0ea55e0 04-Aug-2010 Oliver Tappe <zooey@hirschkaefer.de>

* added get_timezone_offset() to kernel, which returns the offset in seconds
* made FAT add-on use get_timezone_offset(), this time correctly adjusted for
the difference in units (minutes/seconds)
This makes the times in our FAT-fs agree with Linux again, at least :-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37905 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 7e965f50 03-Aug-2010 Oliver Tappe <zooey@hirschkaefer.de>

More consolidation of timezone code:
* dropped DaylightSavingTime from real_time_clock code in kernel, it was
never really being used for what it meant (and just being referred to by
gettimeofday(), which put a different meaning to it
* adjusted the syscalls get_timezone() & set_timezone() as well as their callers
accordingly
* got rid of get_rtc_info() and rtc_info struct in kernel, as it was only
being referred to by the FAT add-on and that one (like gettimeofday()) put a
different meaning to tz_minuteswest. Added a comment to FAT's util.c
showing a possible solution, should the hardcoded GMT timezone pose a problem.
* fixed declaration of gettimeofday() to match POSIX base specs, issue 7
* changed implementation of gettimeofday() to not bother trying to fill struct
timezone - it was using wrong values before, anyway.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37888 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 96ac47e3 03-Aug-2010 Oliver Tappe <zooey@hirschkaefer.de>

Made some progress with consolidation of timezone-related code:
* renamed syscalls _kern_[gs]et_tzfilename
to _kern_[gs]et_real_time_clock_is_gmt, as the filename part is no longer
relevant (and the two corresponding parameters were removed)
* C++-ified and reworked clockconfig to use the info from 'Time settings'
to setup the timezone info during boot
* removed invocation of _kern_get_tzfilename() from tzset(), as the syscall
no longer exists and tzset() is currently broken anyway
* adjusted the Time preflet to use the renamed syscall when getting/setting
the RTC info


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37881 a95241bf-73f2-0310-859d-f6bbb57e9c96


# bd185b41 01-Dec-2009 Ingo Weinhold <ingo_weinhold@gmx.de>

*.c -> *.cpp


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34417 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 294711f98c107cf2d9d05b7fc34cd863e87bd358 27-Jun-2012 Alex Smith <alex@alex-smith.me.uk>

Changed {,u}int64 to be long rather than long long on x86_64.


# 0e88a887b4a9ecaaf1062078d9ca9bfca78fcf3a 13-Jun-2012 Alex Smith <alex@alex-smith.me.uk>

First round of 64-bit safety fixes in the kernel.

* Most of this is incorrect printf format strings. Changed all strings
causing errors to use the B_PRI* format string definitions, which
means the strings should be correct across all platforms.
* Some other fixes for errors, casts required, etc.


# 24df65921befcd0ad0c5c7866118f922da61cb96 11-Jun-2011 Ingo Weinhold <ingo_weinhold@gmx.de>

Merged signals-merge branch into trunk with the following changes:
* Reorganized the kernel locking related to threads and teams.
* We now discriminate correctly between process and thread signals. Signal
handlers have been moved to teams. Fixes #5679.
* Implemented real-time signal support, including signal queuing, SA_SIGINFO
support, sigqueue(), sigwaitinfo(), sigtimedwait(), waitid(), and the addition
of the real-time signal range. Closes #1935 and #2695.
* Gave SIGBUS a separate signal number. Fixes #6704.
* Implemented <time.h> clock and timer support, and fixed/completed alarm() and
[set]itimer(). Closes #5682.
* Implemented support for thread cancellation. Closes #5686.
* Moved send_signal() from <signal.h> to <OS.h>. Fixes #7554.
* Lots over smaller more or less related changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42116 a95241bf-73f2-0310-859d-f6bbb57e9c96


# dbe1e23aa87ced2603074f6e4eaca2c4d99cf971 16-Aug-2010 Oliver Tappe <zooey@hirschkaefer.de>

Optimised passing around of timezone a bit
* _kern_[sg]et_timezone() now accepts/passes out the timezone name, too
* adjust Time preflet and clockconfig to pass the timezone name into the kernel
when calling _kern_set_timezone()
* ajust implementation of tzset() to fetch the timezone name from the kernel
via _kern_get_timezone() instead of reading 'libroot_timezone_info'
* the Time preflet no longer writes 'libroot_timezone_info'


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38164 a95241bf-73f2-0310-859d-f6bbb57e9c96


# e0ea55e0a087e09e68581bdf2de7521ed87f33b5 04-Aug-2010 Oliver Tappe <zooey@hirschkaefer.de>

* added get_timezone_offset() to kernel, which returns the offset in seconds
* made FAT add-on use get_timezone_offset(), this time correctly adjusted for
the difference in units (minutes/seconds)
This makes the times in our FAT-fs agree with Linux again, at least :-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37905 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 7e965f506df723e0253980218bc3ce819b7736e4 03-Aug-2010 Oliver Tappe <zooey@hirschkaefer.de>

More consolidation of timezone code:
* dropped DaylightSavingTime from real_time_clock code in kernel, it was
never really being used for what it meant (and just being referred to by
gettimeofday(), which put a different meaning to it
* adjusted the syscalls get_timezone() & set_timezone() as well as their callers
accordingly
* got rid of get_rtc_info() and rtc_info struct in kernel, as it was only
being referred to by the FAT add-on and that one (like gettimeofday()) put a
different meaning to tz_minuteswest. Added a comment to FAT's util.c
showing a possible solution, should the hardcoded GMT timezone pose a problem.
* fixed declaration of gettimeofday() to match POSIX base specs, issue 7
* changed implementation of gettimeofday() to not bother trying to fill struct
timezone - it was using wrong values before, anyway.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37888 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 96ac47e3126d4001093b745baf4b3d8f31636314 03-Aug-2010 Oliver Tappe <zooey@hirschkaefer.de>

Made some progress with consolidation of timezone-related code:
* renamed syscalls _kern_[gs]et_tzfilename
to _kern_[gs]et_real_time_clock_is_gmt, as the filename part is no longer
relevant (and the two corresponding parameters were removed)
* C++-ified and reworked clockconfig to use the info from 'Time settings'
to setup the timezone info during boot
* removed invocation of _kern_get_tzfilename() from tzset(), as the syscall
no longer exists and tzset() is currently broken anyway
* adjusted the Time preflet to use the renamed syscall when getting/setting
the RTC info


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37881 a95241bf-73f2-0310-859d-f6bbb57e9c96


# bd185b4117e06c1674c4d214abc3917acedc560d 01-Dec-2009 Ingo Weinhold <ingo_weinhold@gmx.de>

*.c -> *.cpp


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34417 a95241bf-73f2-0310-859d-f6bbb57e9c96