Commit Graph

104 Commits

Author SHA1 Message Date
Timothy Gu
8ae2e95643 libroot: add [gs]etpriority implementation
Implemented against POSIX-1.2013.

The implementation POSIX requirement thats setpriority() shall affect the
priority of all system scope threads only extends to POSIX threads. This
is implemented by modifying the default attributes for newly spawned
pthreads.

It is not possible to modify the default pthread attributes for different
processes with the current implementation, as default pthread attributes
are implemented in user-space. As a result, PRIO_PROCESS for which and 0
for who is the only supported combination for setpriority().

While it is possible to move the default attributes to the kernel, it
is chosen not to so as to keep the pthread implementation user-space only.

POSIX requires that lowering the nice value (increasing priority) can be
done only by processes with appropriate privileges. However, as Haiku
currently doesn't harbor any restrictions in setting the thread priority,
this is not implemented.

It is possible to have small precision errors when converting from Unix-
style thread priority to Be-style. For example, the following program
outputs "17" instead of the expected "18":

	#include <stdio.h>
	#include <sys/resource.h>

	int
	main()
	{
		setpriority(PRIO_PROCESS, 0, 18);
		printf("%d\n", getpriority(PRIO_PROCESS, 0));
		return 0;
	}

The underlying reason is because when you setpriority() both 18 and 19
are converted to the Be-style "2". This problem should not happen with
priority levels lower than or equal to 20, when the Be notation is more
precise than the Unix-style.

Done as a part of GCI 2014. Fixes #2817.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Co-authored-by: Leorize <leorize+oss@disroot.org>
Change-Id: Ie14f105b00fe8563d16b3562748e1c2e56c873a6
Reviewed-on: https://review.haiku-os.org/c/78
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
2019-01-19 18:31:58 +00:00
Michael Lotz
e4103b1b92 libroot: Introduce thread specific heap init/exit hooks.
This allows heap implementations to initialize and clean up any thread
specific structures. The current default hoard heap does not use these.

Note that the thread exit hook will not be called for the main thread as
the heap may be needed during process termination (__cxa_finalize for
example).

Change-Id: I703fbd34dec0d9029d619a2125c5b19d8c1933aa
Reviewed-on: https://review.haiku-os.org/799
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
2018-12-25 23:00:20 +00:00
waddlesplash
3f9e3b0a62 ICU locale backend: Increase size of fLocaleDescription from 512 to 1024 bytes.
GCC7 gave a Werror that we were snprintf'ing potentially ~860 bytes into
a 512-byte buffer.
2018-05-19 20:44:51 -04:00
Adrien Destugues
8903cd4256 Bump MAX_SHADOW_PWD_PASSWORD_LEN
Fixes #13733.

Unlike written in the ticket, the string length is 136 (not 135),
and the code checks for rejects anything greater or equal to the max
value. So set the constant to 137.
2017-11-23 13:00:48 +01:00
Augustin Cavalier
6aff37d1c7 Move SHA256 class to libroot instead of linking libshared into libroot.
Discussed with PulkoMandy and on the haiku-commits mailing list.

Thanks to @jessicah for compile-testing and fixing 2 small issues I missed.
2017-10-03 20:18:26 -04:00
Dmytro Shynkevych
0e0f49e799 libroot: Implemented pthread barriers
This is an implementation of pthread barriers pursuant to the relevant specification.

Barriers are essentially a special case of conditional variables,
such that all threads waiting on one are woken up when the number of
waiters reaches a number provided at the initialization of the barrier.
In view of that, this implementation mimics the implementation of pthread_cond,
except it is more specialized and self-contained.

Signed-off-by: Jérôme Duval <jerome.duval@gmail.com>
2016-12-30 11:32:04 +01:00
Jérôme Duval
17b2a3cfcb fork(): Defer signals and lock the heaps while _kern_fork().
* Also defer signals while registering fork hooks.
* While malloc provides fork heap hooks which lock the heaps and unlock/reinit,
  malloc_debug provides empty hooks.
* Ideas suggested by Ingo, patch reviewed by him. Thanks a lot!
* Also call fork parent hooks on failure.
* Solve locks-up when combining multithreading and process forking, should help
  with #13111.
2016-12-17 21:11:15 +01:00
Jérôme Duval
194afffd85 user_thread.h: use struct keyword to be usable in C. 2016-12-17 20:17:38 +01:00
Michael Lotz
f474606ee9 libroot_debug: Merge guarded heap into libroot_debug.
The individual debug heap implementations are now exposed via a
structure of function pointers and a common frontend dispatches the
malloc and malloc_debug APIs through them.

The MALLOC_DEBUG environment variable can be used to select the guarded
heap by adding 'g', otherwise the debug heap is used as the default.
Consequently the separate libroot_guarded is not needed anymore and has
been removed.

To allow the use of environment variables this early, init_env_post_heap
has been added and the heap dependent atfork() moved there. This allowed
to fold the code of init_heap_post_env into init_heap so the former has
been removed.
2015-08-13 22:12:18 +02:00
Axel Dörfler
7987907008 launch_daemon: We can now talk to the authentication manager.
* When creating the port of the registrar's authentication manager, we
  now set it manually, so that the user/group functions work.
* This allows LaunchDaemon::_StartSession() to set up the user, and
  groups as needed.
2015-07-22 20:43:26 +02:00
Axel Dörfler
9d69dc097d libroot: added ability to communicate with the launch_daemon.
* These methods don't really work yet, as BMessage doesn't support
  replying with a KMessage; the request is received, but the reply
  never gets to the target.
2015-07-22 20:40:42 +02:00
Hamish Morrison
10b4fed24f Add support for pthread_condattr_get/setclock()
* Allows use of either CLOCK_REALTIME or CLOCK_MONOTONIC as the time
  base for pthread_cond_timedwait().
2015-05-02 20:55:57 +01:00
Michael Lotz
c012e7e930 libroot: Add private __arch_get_stack_trace().
It can be used to get a stack trace of the current thread. Note that
this works by walking frame pointers and will not produce anything
useful if an application is compiled with the frame pointers omitted.

The stack base and end addresses have to be provided as arguments and
are used to check that the frame pointers fall within that range. These
values are thread specific and can be retrieved with get_thread_info().
No other sanity checks (like checking for loops in the linked list) are
done.

This is a simplified rewrite of the stack trace code from the kernel
debugger.

As this code is common to x86 and x86_64 but is not generic across
architectures I introduced x86_common as a directory to put such
sources.
2015-04-11 23:37:54 +02:00
Michael Lotz
ec0190adb0 malloc_debug: Implement allocation dump on exit in guarded heap.
When enabled (using heap_debug_dump_allocations_on_exit(true) or
MALLOC_DEBUG=e) this causes a dump of all remaining allocations when
libroot_debug is unloaded. It uses terminate_after to be called as
late as possible.

When combined with alloc stack traces this makes for a nice if a bit
crude leak checker. Note that a lot of allocations usually remain
even at that stage due to statically, lazyly and globally allocated
stuff from the various system libraries where it isn't necessarily
worth the overhead to free them when the program terminates anyway.
2015-04-10 17:04:28 +02:00
Pawel Dziepak
d0f2d8282f Merge branch 'scheduler'
Conflicts:
	build/jam/packages/Haiku
	headers/os/kernel/OS.h
	headers/os/opengl/GLRenderer.h
	headers/private/shared/cpu_type.h
	src/add-ons/kernel/drivers/power/acpi_battery/acpi_battery.h
	src/bin/sysinfo.cpp
	src/bin/top.c
	src/system/kernel/arch/x86/arch_system_info.cpp
	src/system/kernel/port.cpp
2014-01-17 04:06:15 +01:00
Ingo Weinhold
e551626f40 Implement support for a SYS:ENV attribute on executable
__flatten_process_args() does now have the executable path as an
additional (optional) parameter. If specified, the function will read
the file's SYS:ENV attribute (if set) and use its value to modified the
environment it is preparing for the new process. Currently supported
attribute values are strings consisting of "<var>=<value>" substrings
separated by "\0" (backslash zero), with '\' being used as an escape
character. The environment will be altered to contain the specified
"<var>=<value>" elements, replacing a preexisting <var> element (if
any).

A possible use case would be setting a SYS:ENV attribute with value
"DISABLE_ASLR=1" on an executable that needs ASLR disabled.
2013-12-01 18:34:07 +01:00
Ingo Weinhold
8a3fe6d1bf Add private __getenv_reentrant()
A reentrant variant of getenv().
2013-11-17 19:11:02 +01:00
Pawel Dziepak
077c84eb27 kernel: atomic_*() functions rework
* No need for the atomically changed variables to be declared as
   volatile.
 * Drop support for atomically getting and setting unaligned data.
 * Introduce atomic_get_and_set[64]() which works the same as
   atomic_set[64]() used to. atomic_set[64]() does not return the
   previous value anymore.
2013-11-05 22:32:59 +01:00
Pawel Dziepak
07e1875ea2 libroot: explicitly check ABI version
As Axel suggested use simple, explicit checks for legacy ABI version
instead of obscure "compatibility mode".
2013-05-22 19:31:05 +02:00
Pawel Dziepak
5d0a1da8bf libroot: make all areas executable for old binaries
* If at least one image is either B_HAIKU_ABI_GCC_2_ANCIENT or
   B_HAIKU_ABI_GCC_2_BEOS almost all areas are marked as executable.
 * B_EXECUTE_AREA and B_STACK_AREA are made public. The former is enforced since
   the introduction of DEP and apps need it to correctly set area protection.
   The latter is currently needed only to recognize stack areas and fix their
   protection in compatibility mode, but may also be useful if an app wants
   to use sigaltstack from POSIX API.
2013-05-15 00:06:39 +02:00
Pawel Dziepak
e85e399fd7 commpage: randomize position of commpage
This patch introduces randomization of commpage position. From now on commpage
table contains offsets from begining to of the commpage to the particular
commpage entry. Similary addresses of symbols in ELF memory image "commpage"
are just offsets from the begining of the commpage.

This patch also updates KDL so that commpage entries are recognized and shown
correctly in stack trace. An update of Debugger is yet to be done.
2013-04-04 15:27:22 +02:00
Hamish Morrison
d1f280c805 Add support for pthread_attr_get/setguardsize()
* Added the aforementioned functions.
* create_area_etc() now takes a guard size parameter.
* The thread_info::stack_base/end range now refers to the usable range
  only.
2012-12-28 18:02:58 +00:00
Oliver Tappe
ec17468f63 Allow switching of timezone string to messages locale, too.
* adjust POSIX locale backend to redirect the timezone string
  through the messages/time-locale indirection
2012-02-23 23:15:36 +01:00
Oliver Tappe
1e1278f46f Implement taking date strings from messages locale.
* mimic LocaleKit and add option to POSIX locale backend for taking
  the date strings from the messages locale (instead of time locale)
2012-02-23 23:15:36 +01:00
Oliver Tappe
752527a8fe Cleanup: correct variable name in mbrtowc() signature. 2012-02-07 21:43:00 +01:00
Oliver Tappe
b7417fbec1 Switch wchar from glibc to our own implementations. 2012-01-07 22:02:48 +01:00
Oliver Tappe
bd55dcbefb Add our implementation for wcscoll() and wcsxfrm().
* add Wcscoll() and Wcsxfrm() ICU locale backend
* provide implementations of wcscoll() and wcsxfrm() that are using
  the respective methods of the locale backend
2012-01-07 21:47:31 +01:00
Oliver Tappe
ec99f3b2a6 Adjust mbstate_t to embed the state of the ICU converter.
* make room in mbstate_t for containing an ICU-converter's state
  (well, in fact the whole converter object)
* adjust libroot's locale add-on to clone converters into a given
  mbstate_t directly
* adjust ICUThreadLocalStorageValue to contain the converter pointer
  instead of a converter-ID (if the converter is related to an
  mbstate_t, it points into the mbstate_t).
* adjust users of converters to directly use converter pointers
  instead of ICUConverterRef
* drop now unused ICUConverterManager and ICUConverterRef
* update gcc4 optional package

This brings our multibyte implementation into a fully working state,
both non-ascii and non-8-bit characters can now be handled normally
in the Terminal, i.e. this finally fixes #6276.

N.B.: Since the size of mbstate_t has changed, everything (including
the compiler!) needs to be rebuilt.
2011-12-15 13:18:11 +01:00
Oliver Tappe
995d6d827f Implement our own version of wcsrtombs().
* add WcharStringToMultibyte() to libroot's locale backend
* implement wcstombs(), wcsrtombs() and wcsnrtombs() on top of that
  new backend function
2011-12-12 17:27:42 +01:00
Oliver Tappe
73186b2fcd Add implementation of mbsrtowcs() to our locale backend.
* add MultibyteStringToWchar() to ICU locale backend
* implement mbsrtowcs() and mbsnrtowcs() on top of 
  MultibyteStringToWchar()
* drop respective glibc files
2011-12-12 17:27:41 +01:00
Ingo Weinhold
bde1972229 Move <directories.h> to headers/private/system 2011-11-25 06:19:32 +01:00
Oliver Tappe
323b65468e Filtered flat import of Oliver's svn package management branch
Bring the changes that aren't package management related and the ones
that are but don't take effect as long as they are ignored by the build
system into the master.

Summary of changes:
* Introduce private header <directories.h> with constants for a good
  deal of paths that should usually be retrieved via find_directory().
* Replace hard-coded paths by using find_directory() or the
  <directories.h> constants (e.g. in drivers and the kernel).
* Add find_directory() constants needed for package management.
* Add __HAIKU_ABI_NAME and B_HAIKU_ABI_NAME macros.
* src/apps/deskbar: BeMenu.* -> DeskbarMenu.*,
  DeskBarUtils.* -> DeskbarUtils.*
* Change deskbar menu settings directory from ~/config/be to
  ~/config/settings/deskbar.
* Other smaller cleanups, changes, and fixes.
2011-11-25 06:17:07 +01:00
Oliver Tappe
ae90193596 Introduce __set_errno() throughout libroot.
* add errno_private.h, which defines the __set_errno() macro with
  and without tracing
* instead of setting errno manually, all libroot's code now invokes
  __set_errno(), which makes it much easier to trace changes to errno
* redirect glibc's use of __set_errno() to our own version
2011-11-24 23:48:18 +01:00
Oliver Tappe
1f84898190 Let ErrnoMaintainer restore errno unconditionally.
* we never want to let ICU calls change the errno at all, so we always
  restore it to the value it had before entering ICU (not just if it
  was 0)
2011-11-24 23:48:18 +01:00
Oliver Tappe
c894d1868e Bring rewritten multibyte-support into repository.
* update copyrights of locale backend files

Multibyte-support has been rewritten to use ICU as backend.
While this does not necessarily work properly in every aspect
(e.g. the shell still has [different] problems with multibyte-
characters now), it does fix #6263 and #7700.
2011-11-23 19:55:34 +01:00
Oliver Tappe
cc5eca7554 Activate our new multibyte implementation.
* add implementations for the following multibyte-related
  functions:
    btwoc()
    mblen()
    mbrlen()
    mbrtowc()
    mbsinit()
    mbtowc()
    wcrtomb()
    wcswidth()
    wctob()
    wctomb()
* the implementation of the above function live in a symbol
  named __<name>, the above symbol names are defined as a weak
  alias to the internal ones - TODO: we need to make sure to
  only invoked the internal functions (i.e. prepended with __)
  in order to avoid problems with symbol preemption.
* deactivate the limited mb implementation we provided before,
  as well as respective stuff from glibc
2011-11-22 18:31:27 +01:00
Oliver Tappe
28ae43d033 Add multibyte-support to ctype-locale backend.
* add actual converter methods MultibyteToWchar() and WcharToMultibyte()
  to locale backend and implement them in the ctype subpart
* add management code for maintaining converters referenced by mbstate_t
2011-11-22 18:17:58 +01:00
Oliver Tappe
e0eb1d38c4 Let MB_CUR_LEN lookup the actual value.
* instead of yielding 1, MB_CUR_LEN now looks up the correct
  value in the ctype data provided by the locale backend
2011-11-22 17:32:39 +01:00
Oliver Tappe
bf5ff48092 Use TLS and converter manager in locale backend. 2011-11-22 17:17:18 +01:00
Oliver Tappe
bcadc4ca66 Start work on multibyte-support in locale backend.
* add ICUThreadLocaleStorageValue, which will be used to maintain
  per-thread ICU converters
* add ICUConverterManager
2011-11-22 16:55:39 +01:00
Oliver Tappe
3063b5a05e Add private headers for internal versions of wchar/multibye-functions.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43090 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-11-02 00:09:52 +00:00
Rene Gollent
36dc99a323 Add private get_memory_properties() syscall which allows one to retrieve the
address protection bits as well as the wiring flags for an arbitrary address
in a team's address space. Will be used in the debugger for the purposes
of the memory inspector/editor, in order to determine whether it can in fact
allow editing for the currently inspected address range.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42129 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-06-12 20:17:14 +00:00
Ingo Weinhold
24df65921b 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
2011-06-12 00:00:23 +00:00
Oliver Tappe
22a7fe9695 Cleanup system-revision stuff.
* move system_revision.h to headers/private/libroot
* unify libroot's get_system_revision() (the one I introduced recently) with kernel's
  get_haiku_revision(), the function is now called get_haiku_revision() in the kernel
  and __get_haiku_revision() in libroot
* system_revision.c is now being built as part of libroot and as part of the kernel
* adjusted all callers of get_system_revision() accordingly


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41516 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-05-15 16:33:30 +00:00
Oliver Tappe
e8226ce48d * fix support for influencing tzset() via TZ environment variable
(now at least <std> and <offset> are supported properly)
* instead of creating a TimeZone object whenever needed, we now
  create it in tzset() and keep it around
* add tests for TZ to locale_test

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40788 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-03-03 00:34:51 +00:00
Jérôme Duval
bafa759148 now correctly init the thread id in the pthread struct for main thread and threads spawned with spawn_thread(). This definitely helps for #7235.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40665 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-02-24 17:28:59 +00:00
Axel Dörfler
3d0d4b6200 * Implemented a way to specify additional debug options via MALLOC_DEBUG when
using libroot_debug.so, instead of having to hardcode them in the application
  via calling private heap functions.
* The following options are implemented: 'p' turns on paranoid validation,
  'w' triggers periodic wall checking every 500ms ('W' does the same, but every
  100ms), 'g' to use guard pages (beware, this will dramatically increase
  memory usage), and 'r' which forbids reusing of memory, freed memory is never
  actually freed.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40514 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-02-15 17:54:24 +00:00
Ingo Weinhold
25dc253d6a * Merged weak-symbols branch.
* Fixed trivial merge conflict in src/system/libroot/posix/locale/nl_langinfo.cpp
* Fixed gcc 2 compilation of src/system/glue/init_term_dyn.c.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39571 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-11-22 13:06:36 +00:00
Ingo Weinhold
56d734a1aa Added new private API to get more information on a team:
* Userland interface: get_extended_team_info().
* Syscall: _kern_get_extended_team_info.

Only partially implemented yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39453 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-11-16 19:42:08 +00:00
Oliver Tappe
de2e54ace0 Adjust tzset() implementation to better follow the POSIX specs and
make some more perl tests happy.
* no longer expect a ICU timezone ID in the TZ environment variable,
  but only expect this format if the TZ-value is starting with ':'
* accept "standard" TZ-values like "EST5" (of which only "EST" is
  relevant to us) - if such a value is specified, we hardcode the
  timezone name to the given value, no matter how ICU calls it
* adjust tests accordingly


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39415 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-11-13 01:13:38 +00:00