Commit Graph

5583 Commits

Author SHA1 Message Date
Pawel Dziepak
4b446279e6 scheduler_affine: Use CPU topology tree to create ID mappings 2013-10-21 01:34:31 +02:00
Pawel Dziepak
343c489689 kernel: Create CPU topology tree 2013-10-21 01:33:35 +02:00
Pawel Dziepak
a6d4233e59 scheduler_affine: Choose wisely which core to wake up
The longer core is idle the deeper idle state it has entered. That's
why the scheduler should always choose the core that has gone idle
most recently (both for performance and power saving reasons).

Moreover, if there are more than one package the scheduler should
minimize the number of packages with at least one core active when
power saving is the priority. Contrary, as many packages as possible
should be used when aiming for high performance.
2013-10-20 23:26:32 +02:00
Pawel Dziepak
da3a48f4a8 scheduler_affine: Use min-max heap as per-core CPU heap 2013-10-17 19:23:27 +02:00
Pawel Dziepak
278c9784a1 scheduler_affine: Use global core heap and per-core CPU heaps
There is a global heap of cores, where the key is the highest priority
of threads running on that core. Moreover, for each core there is
a heap of logical processors on this core where the key is the priority
of currently running thread.

The per-core heap is used for load balancing among logical processors
on that core. The global heap is used in initial decision where to put
the thread (note that the algorithm that makes this decision is not
complete yet).
2013-10-17 02:11:28 +02:00
Pawel Dziepak
3ec1d8da42 scheduler_affine: Add logic shared with simple scheduler
The scheduler is in very early stage. There is no thread migration and
the algorithms choosing CPU for thread are very simple.

Since affine scheduler is going to use one run queue per core simple on
single core machines it will work exactly the same as simple scheduler.
That would allow us to have only one scheduler implementation usable
on all kinds of machines.
2013-10-16 23:50:18 +02:00
Pawel Dziepak
824ed26c51 kernel: Fully detect CPU topology before initializing scheduler 2013-10-16 20:02:56 +02:00
Pawel Dziepak
cf863a5040 kernel: Decide whether to use simple or affine scheduler
Simple scheduler is used when we do not have to worry about cache affinity
(i.e. single core with or without SMT, multicore with all cache levels
shared).

When we replace gSchedulerLock with more fine grained locking affine
scheduler should also be chosen when logical CPU count is high (regardless
of cache).
2013-10-16 18:39:25 +02:00
Pawel Dziepak
ebec24f9e0 kernel: Add support for disabling CPUs in scheduler 2013-10-15 02:02:54 +02:00
Pawel Dziepak
3de2c5ceec kernel: Add support for pinned threads 2013-10-15 01:47:28 +02:00
Pawel Dziepak
51d1e9ada0 kernel: Remove scheduler_simple_smp 2013-10-15 00:37:19 +02:00
Pawel Dziepak
f20ad54be2 kernel: Add support for SMP systems to simple scheduler
In SMP systems simple scheduler will be used only when all logical
processors share all levels of cache and the number of CPUs is low.
In such systems we do not have to care about cache affinity and
the contention on the lock protecting shared run queue is low. Single
run queue makes load balancing very simple.
2013-10-15 00:29:04 +02:00
Pawel Dziepak
298314fe4b libroot: Update sched_get_priority_{max, min}()
SCHED_RR is a real-time scheduling policy.
SCHED_FIFO and SCHED_SPORADIC are not supported (at least for now).
2013-10-09 20:57:42 +02:00
Pawel Dziepak
29e65827fd kernel: Remove possibility to yield to all threads
Kernel support for yielding to all (including lower priority) threads
has been removed. POSIX sched_yield() remains unchanged.

If a thread really needs to yield to everyone it can reduce its priority
to the lowest possible and then yield (it will then need to manually
return to its prvious priority upon continuing).
2013-10-09 20:42:34 +02:00
Pawel Dziepak
fee8009184 kernel: Add another penalty for CPU bound threads
Each thread has its minimal priority that depends on the static priority.
However, it is still able to starve threads with even lower priority
(e.g. CPU bound threads with lower static priority). To prevent this
another penalty is introduced. When the minimal priority is reached
penalty (count mod minimal_priority) is added, where count is the number
of time slices since the thread reached its minimal priority. This prevents
starvation of lower priorirt threads (since all CPU bound threads may have
their priority temporaily reduced to 1) but preserves relation between
static priorities - when there are two CPU bound threads the one with
higher static priority would get more CPU time.
2013-10-09 20:13:47 +02:00
Pawel Dziepak
24dbeeddb2 kernel: Give longer time slice to lower priority threads 2013-10-09 02:25:21 +02:00
Pawel Dziepak
3e91b082c8 libroot: Do not rely on thread_yield() 2013-10-09 02:07:08 +02:00
Pawel Dziepak
879ceb60d8 kernel: Remove suporfluous casts 2013-10-09 01:45:07 +02:00
Pawel Dziepak
130000e068 kernel: Dump scheduler specific thread data 2013-10-09 01:37:00 +02:00
Pawel Dziepak
f256b4aca7 kernel: Use SimpleRunQueue as run queue type everywhere 2013-10-09 01:20:40 +02:00
Pawel Dziepak
0896565a6e kernel: Support sched_yield() properly
sched_yield() should not yield to the threads with lower priority.
2013-10-09 01:18:55 +02:00
Pawel Dziepak
ee69e53630 kernel: Minor improvements, separate priority and yield logic 2013-10-08 21:36:49 +02:00
Pawel Dziepak
9363e99b19 kernel: Remove Thread::next_priority 2013-10-08 20:21:35 +02:00
Pawel Dziepak
346e789a21 kernel: Fix style issues 2013-10-08 20:15:21 +02:00
Pawel Dziepak
94f4574d78 kernel: Move thread retrieving code to separate function 2013-10-08 20:13:10 +02:00
Pawel Dziepak
03e3a82953 kernel: Allow threads to yield CPU properly 2013-10-08 06:41:20 +02:00
Pawel Dziepak
bab69bdb47 kernel: Force high priority threads to yield less often 2013-10-08 04:53:30 +02:00
Pawel Dziepak
547b8c76c7 kernel: Cancel penalty only if the thread actually waits
Require the thread to give up CPU for at least one time slice before
cancelling its penalty.
2013-10-08 04:50:23 +02:00
Pawel Dziepak
21808e8f0b kernel: Limit maximum priority penalty
The maximum penalty the thread can receive is now limited depending on
the real thread priority. However, since it make it possible to starve
threads with priority lower than that limit. To prevent that threads
that have already earned the maximum penalty are periodically forced
to yield CPU to all other threads.
2013-10-08 02:54:58 +02:00
Pawel Dziepak
31e65090db kernel: Use standard compliant version of variadic macros 2013-10-08 01:34:55 +02:00
Pawel Dziepak
e083bca041 kernel: Allow threads to always finish their time slice
Until now, when the thread has been preempted by higher priority
thread it was then placed at the end of its priority FIFO and given
a new time slice. This patch changes it allowing the thread to
complete its time slice (when the higher priority threads are done),
unless there was very little time left in which case this time is added
to the next time slice.

Apart from making the algorithm more fair this change allows to identify
CPU bound threads more easily. (Earlier they could 'hide' by being
preempted by higher priority thread and consequently never using
their whole time slice).
2013-10-08 01:08:05 +02:00
Pawel Dziepak
565e7a977d kernel: Update SchedulerTracing::EnqueueThread 2013-10-07 21:52:45 +02:00
Pawel Dziepak
72f844835e kernel: Do not require double parentheses in TRACE statements. 2013-10-07 21:29:10 +02:00
Pawel Dziepak
82c26e1f1f kernel: Punish CPU bound threads
This patch appears to fix #8007.

Thread that consume its whole quantum has its priority reduced. The penalty
is cancelled when the thread voluntarily gives up CPU. Real-time threads
are not affected.

The problem of thread starvation is not solved completely. The worst case
latency is still unbounded (even in systems with bounded number of threads).
When a middle priority thread is constantly preempted by high priority
threads it would not earn the penalty, thus the lower priority threads
still can be starved. Moreover, the punishment is probably too aggressive
as it reduces priority of virtually all CPU bound threads to 1.
2013-10-07 21:11:32 +02:00
Pawel Dziepak
6d7e291233 kernel: Allow scheduler initialization to fail 2013-10-05 20:45:07 +02:00
Pawel Dziepak
9ad558f01c kernel: Use the new runqueue in non-MP scheduler 2013-10-05 20:22:59 +02:00
Pawel Dziepak
b8c1df9b00 kernel: Add O(1) lookup and insertion priority queue 2013-10-05 20:16:06 +02:00
Pawel Dziepak
7039b950fb x86[_64]: Fix style issues 2013-10-05 18:03:00 +02:00
Pawel Dziepak
149c82a8ec kernel/util: Add bitmap implementation 2013-10-03 04:27:49 +02:00
Pawel Dziepak
7087b865e2 x86[_64]: Remove superfluous memset()s 2013-10-03 04:26:21 +02:00
Pawel Dziepak
36cc64a9b3 x86[_64]: Add CPU cache topology detection for AMD and Intel CPUs 2013-10-02 23:48:03 +02:00
Pawel Dziepak
1f50d09018 kernel/util: Add bit hack utilities 2013-10-02 21:24:46 +02:00
Pawel Dziepak
26c3861891 x86[_64]: Fix some style issues 2013-10-02 21:18:56 +02:00
Pawel Dziepak
fa6f78aee7 x86[_64]: Use uint32 for maximum CPUID leaf number 2013-10-02 21:03:34 +02:00
Pawel Dziepak
c9b6f27d94 x86[_64]: Add CPU topology detection for AMD processors 2013-10-02 02:34:35 +02:00
Pawel Dziepak
f1644d9d0b x86[_64]: Set level shift by counting bits in mask 2013-10-02 01:55:07 +02:00
Pawel Dziepak
fafeda52ea x86[_64]: Do not return too soon from detectCPUTopology() 2013-10-02 01:49:10 +02:00
Pawel Dziepak
8ec897323e x86[_64]: Add CPU topology detection for Intel processors 2013-10-02 01:19:17 +02:00
Pawel Dziepak
4110b730db x86[_64]: Add support for CPUID sub-leaves
Some CPUID leaves may contain one or more sub-leaves accessed by setting
ECX to an appropriate value.
2013-10-01 20:31:18 +02:00
Pawel Dziepak
ffd5393620 kernel/util: Make exit() available in bootloader as well 2013-10-01 19:31:48 +02:00
Pawel Dziepak
7aecb0b276 kernel/util: Make exit() available in kernel mode
Since we are using libraries originally intendent for user mode in kernel
mode providing them with some userland functions is inevitable. This
particular patch is to make zlib happy and able to call exit() when
its debug assertions fails.
2013-10-01 15:51:07 +02:00
François Revol
68bccdf6b4 M68K: More gcc options fixes 2013-09-30 04:21:41 +02:00
François Revol
4046c49f88 M68K: Account for extra parameter to create_area_etc()
Would have been nice to also fix 68k code... just sayin.
2013-09-30 04:15:27 +02:00
François Revol
835545cfd1 M68K: drop dupplicate strlen
Seems we have our own now.
2013-09-30 04:09:27 +02:00
François Revol
f7d6c2f8e5 M68K: Switch to new gcc options for specifying cpu
Latest gcc converts the old ones to the new ones anyway...
including when passing to gas, which of course is not new enough,
so we have to also force gcc to pass the old one around in one case.
2013-09-30 04:02:21 +02:00
François Revol
5e0e2739c9 ARM: work around too many libgcc objects when linking libroot
jam fails in execve() trying to run the command due to
a too large arguments list because of the many objects in libgcc.

We split them into two intermediate objects,
then we link them to libroot.
2013-09-30 00:37:06 +02:00
François Revol
f9ab70a1d1 Guard the __sync_* atomic helper with __ARM__
I didn't notice I was adding to a generic file.
2013-09-29 22:43:34 +02:00
François Revol
c436d67da4 ARM: Add note about updating libstdc++
The __sync_fetch_and_add_4() helper is deprecated in newer GCC,
and should be droped when we update libstdc++.
2013-09-29 21:02:11 +02:00
François Revol
75453edc01 ARM: Add a C version of __sync_fetch_and_add_4()
It just calls atomic_add().

No need for the asm version, it doesn't need to depend on defines.
2013-09-29 19:46:41 +02:00
François Revol
735ec4c018 ARM: Add longjmp_return.c to the libroot built
Linking was failing with undefined reference to __longjmp_return.
2013-09-29 04:03:09 +02:00
Ingo Weinhold
81291304ad Merge remote-tracking branch 'haiku/master' into package-management
Conflicts:
	build/jam/BuildSetup
	build/jam/HaikuImage
	build/jam/board/sam460ex/BoardSetup
	build/jam/board/verdex/BoardSetup
	data/catalogs/apps/icon-o-matic/fr.catkeys
	src/add-ons/kernel/drivers/audio/hda/hda_codec.cpp
	src/add-ons/kernel/drivers/disk/usb/usb_disk/usb_disk.cpp
	src/apps/debugger/files/FileManager.cpp
	src/apps/debugger/files/FileManager.h
	src/apps/debugger/user_interface/gui/inspector_window/MemoryView.cpp
	src/apps/haiku-depot/MainWindow.cpp
	src/apps/haiku-depot/MainWindow.h
	src/apps/haiku-depot/Model.cpp
	src/apps/haiku-depot/PackageInfo.h
	src/apps/haiku-depot/PackageInfoListener.h
	src/apps/haiku-depot/PackageInfoView.cpp
	src/apps/haiku-depot/PackageInfoView.h
	src/apps/haiku-depot/PackageListView.cpp
	src/apps/haiku-depot/PackageListView.h
	src/system/kernel/arch/arm/arch_timer.cpp
	src/system/libroot/os/arch/arm/atomic.S
	src/tools/translation/bitsinfo/Jamfile
	src/tools/translation/bmpinfo/Jamfile
	src/tools/translation/tgainfo/Jamfile
2013-09-27 01:55:45 +02:00
Jérôme Duval
1bc85a38d5 libroot: spawn_thread() now creates a detached pthread.
* __pthread_destroy_thread() will in turn free the pthread_thread object.
* this fixes a leak of 2072 bytes on each thread construction/destruction
and #9945. MediaExtractor spawns a thread on construction, which leaked
its pthread_thread object on destuction.
2013-09-26 21:30:59 +02:00
Pawel Dziepak
afaa6ed4b3 x86[_64]: Randomize initial stack pointer on alternative signal stacks
If the alternate signal stack is used randomize the initial stack
pointer in the same way it is randomized on "normal" thread stacks.
Also, update MINSIGSTKSZ value so that regardless of where the new
stack pointer points to there is at least 4k of stack left.
2013-09-21 21:52:13 +02:00
Ithamar R. Adema
e7c330c6f3 ARM: improve error output, fix iframe reporting. 2013-09-19 03:15:06 +02:00
Ithamar R. Adema
1847d8c486 ARM: user_memcpy/memset/strlcpy: fix my horrible ARM assembly
Turns out I was way to green (and tired) last year to code this properly...
now they finally work and the kernel is a lot more stable for it.
2013-09-18 22:20:17 +02:00
Ingo Weinhold
de15b85e5c getgr{nam,gid}[_r](): Fix retrieving group members 2013-09-18 16:33:16 +02:00
Ingo Weinhold
fb8a9c4710 getpw{nam,uid}[_r]: Fix return value behavior
... when the user is not found.
2013-09-18 16:33:16 +02:00
Ingo Weinhold
222fb7a91a getgrgid_r()/getgrname_r(): Fix group not found return value 2013-09-18 16:33:16 +02:00
Ingo Weinhold
9a85313bc6 X86PagingStructuresPAE: Zero fPageDirPointerTable in constructor
... and use it as a guard in the destructor. Fixes crash when running
out of memory and Init() is not called.
2013-09-18 16:33:15 +02:00
Ithamar R. Adema
501b24c63b ARM: kernel: Make 32/64-bit atomics work for ARMv5/6
Support for 64-bit atomic operations for ARMv7+ is currently stubbed
out in libroot, but our current targets do not use it anyway.

We now select atomics-as-syscalls automatically based on the ARM
architecture we're building for. The intent is to do away with
most of the board specifics (at the very least on the kernel side)
and just specify the lowest ARMvX version you want to build for.

This will give flexibility in being able to distribute a single
image for a wide range of devices, and building a tuned system
for one specific core type.
2013-09-18 05:03:18 +02:00
Ingo Weinhold
6dee6653c2 When switching to PAE don't copy not needed PTEs
Now we check whether the virtual address corresponding to the PTE lies
in an allocated virtual address range. This fixes a cause of #8345:
The assertion would trigger when such an entry was encountered. There
might be other causes that trigger the same assertion, though.
2013-09-18 00:42:45 +02:00
Ingo Weinhold
372a666344 X86VMTranslationMapPAE: Add some ktracing for page (un)mapping 2013-09-18 00:42:45 +02:00
Ingo Weinhold
6508ce9f52 X86VMTranslationMapPAE::Map(): More info in assert 2013-09-18 00:42:44 +02:00
Ingo Weinhold
bcb7463650 arch_vm_translation_map_early_map(): Fix debug output 2013-09-18 00:42:44 +02:00
Ingo Weinhold
93495b0354 X86PagingStructuresPAE: clear fVirtualPageDirs in constructor
... not just the first element. Fixes a crash in X86VMTranslationMapPAE
destructor when running out of memory when initializing the map.
2013-09-18 00:42:44 +02:00
Ingo Weinhold
34d0d4d85e dump_page_queue(): fix output
* Determine the cache type per page instead of printing the first page's
  cache type for all pages.
* Use vm_cache_type_to_string().
2013-09-18 00:42:43 +02:00
Ithamar R. Adema
cc65466f0d ARM: kernel: Make KDL more useful on ARM
This adds the -mapcs-frame compiler flag for ARM to have "stable"
stack frames, adds support to the kernel for dumping stack crawls,
and initial support for iframes. There' much more functionality
to unlock in KDL, but this makes debugging already a lot more
comfortable.....
2013-09-17 23:04:59 +02:00
Ithamar R. Adema
740490ba82 ARM: libroot: fix setjmp/longjmp implementation.
Just a couple of lines of code, but a head full of pain ;-) Finally
got it right and now KDL can properly recover from invalid accesses.
2013-09-17 22:26:48 +02:00
Ithamar R. Adema
34ed0fe74a ARM: kernel: fix system_time() when being called too early. 2013-09-17 15:57:36 +02:00
Ithamar R. Adema
dfa5aa0c98 device_manager: Move init_node_tree to after kdl cmd registration
This helps when debugging, since when a driver/module causes a crash
while registering with the device manager, you can actually look at
the device manager state ;-)
2013-09-17 14:42:06 +02:00
Ithamar R. Adema
ba06f07660 ARM: kernel: fix timer resolution and implement basic timekeeping.
The previously used method for programming the timer did not take
into account that our timespec is 64bit while the register we poke
it into is 32 bit. Since the PXA (SoC in Verdex target) has a limited
scale of resolution (us,ms,second) we dynamicly determine the one
that we can most closely match, and set that.

For f.ex. snooze to work however, we also need system_time to work.
The current implementation uses a system timer at microsecond
resolution to keep track of time.

Although the code is far from perfect, committing it now before
it gets lost, since I'm working on the infrastructure code
to properly factor out the SoC specific code out of the core
ARM architecture code (so the kernel can support more then
our poor old Verdex QEMU target ;))
2013-09-17 14:42:05 +02:00
Ithamar R. Adema
4f4270c990 loader/u-boot: fix alignment of uimage components.
The "blobs" in a U-Boot uimage are aligned at 4 bytes, which we
did not take into account. Found this when adding a 3rd blob
containing the Flattened Device Tree for ARM.
2013-09-17 14:42:05 +02:00
Pawel Dziepak
533036dde7 libroot: Make sure PTHREAD_STACK_MIN is in the allowed range 2013-09-17 14:42:03 +02:00
Ithamar R. Adema
0fa2d68cdf ARM: stub out missing int64 atomic functions
Also, add an item to the TODO list for this. Really need to figure it out soon...
2013-09-17 14:40:24 +02:00
Ithamar R. Adema
89f89a07e1 ARM: boot: pass boot disk identifier
This to stop the vfs_boot.cpp code from complaining.
2013-09-17 14:40:24 +02:00
Ithamar R. Adema
acd58c2f6c ARM: boot: Make dd on MacOS happy
Turns out dd on MacOS does not like '1M' as size descriptor, but
wants '1m'. To prevent us breaking Linux builds (as it does not
accept 1m), just use the actual number of bytes explicitely instead.
2013-09-17 14:40:21 +02:00
Ithamar R. Adema
672b2600bc ARM: kernel: Fix compilation issue with new gas.
Turns out the new gas does not like spaces :(
2013-09-17 14:40:19 +02:00
Pawel Dziepak
278f66b6b1 x86[_64]: Enable NX on non-boot CPUs as soon as possible 2013-09-17 14:40:17 +02:00
François Revol
c55cff0acc Whitespace cleanup 2013-09-17 13:51:38 +02:00
François Revol
228524afb6 Merge branch 'master' into sam460ex 2013-09-17 13:22:26 +02:00
Ithamar R. Adema
f2479c22a8 device_manager: Move init_node_tree to after kdl cmd registration
This helps when debugging, since when a driver/module causes a crash
while registering with the device manager, you can actually look at
the device manager state ;-)
2013-09-17 05:52:54 +02:00
Ithamar R. Adema
af1c0b55ca ARM: kernel: fix timer resolution and implement basic timekeeping.
The previously used method for programming the timer did not take
into account that our timespec is 64bit while the register we poke
it into is 32 bit. Since the PXA (SoC in Verdex target) has a limited
scale of resolution (us,ms,second) we dynamicly determine the one
that we can most closely match, and set that.

For f.ex. snooze to work however, we also need system_time to work.
The current implementation uses a system timer at microsecond
resolution to keep track of time.

Although the code is far from perfect, committing it now before
it gets lost, since I'm working on the infrastructure code
to properly factor out the SoC specific code out of the core
ARM architecture code (so the kernel can support more then
our poor old Verdex QEMU target ;))
2013-09-17 03:03:17 +02:00
Ithamar R. Adema
7418443d12 loader/u-boot: fix alignment of uimage components.
The "blobs" in a U-Boot uimage are aligned at 4 bytes, which we
did not take into account. Found this when adding a 3rd blob
containing the Flattened Device Tree for ARM.
2013-09-17 02:44:32 +02:00
Pawel Dziepak
74018092d0 libroot: Make sure PTHREAD_STACK_MIN is in the allowed range 2013-09-16 23:23:28 +02:00
Ithamar R. Adema
ef5e0ba938 ARM: stub out missing int64 atomic functions
Also, add an item to the TODO list for this. Really need to figure it out soon...
2013-09-15 04:22:04 +02:00
Ithamar R. Adema
90742b59be ARM: boot: pass boot disk identifier
This to stop the vfs_boot.cpp code from complaining.
2013-09-15 04:18:31 +02:00
Ithamar R. Adema
cfa8ecbc86 ARM: boot: Make dd on MacOS happy
Turns out dd on MacOS does not like '1M' as size descriptor, but
wants '1m'. To prevent us breaking Linux builds (as it does not
accept 1m), just use the actual number of bytes explicitely instead.
2013-09-14 20:15:33 +02:00
Ithamar R. Adema
fda9d308e1 ARM: kernel: Fix compilation issue with new gas.
Turns out the new gas does not like spaces :(
2013-09-14 17:27:17 +02:00
Pawel Dziepak
b8dc812f3e x86[_64]: Enable NX on non-boot CPUs as soon as possible 2013-09-14 05:28:50 +02:00
François Revol
c14bca2958 Merge branch 'master' into sam460ex 2013-09-14 01:16:51 +02:00
Ingo Weinhold
cf70d345b2 Merge remote-tracking branch 'haiku/master' into package-management
This reverts 8f7f28a7c3 (OpenGL: Upgrade
to
Mesa 9.2).

Conflicts:
	build/jam/BuildFeatures
	build/jam/HaikuImage
	build/jam/OptionalPackages
	build/scripts/build_cross_tools_gcc4
	src/add-ons/opengl/swpipe/Jamfile
	src/apps/diskusage/Jamfile
	src/kits/tracker/ContainerWindow.cpp
	src/kits/tracker/DeskWindow.cpp
	src/kits/tracker/Jamfile
2013-09-13 01:02:28 +02:00
Ingo Weinhold
cc0838da34 VFS boot: Mount packagefs when booting off an image
... and the mounted boot volume looks like a PM Haiku. This gets the CD
boot going.
2013-09-13 00:06:21 +02:00
Ingo Weinhold
3465e718e7 boot tarfs: Support resolving "." and ".." directory entries
This makes resolving the boot module symlinks work.
2013-09-13 00:06:21 +02:00
Ingo Weinhold
b1c3379c7e _user_debug_output(): Fix for long strings
The wrong length was passed to debug_puts().
2013-09-11 04:43:47 +02:00
Siarzhuk Zharski
726e47bb80 vfs:Remove extra put_vnode call on error B_LINK_LIMIT exit
Fixing the autoconf test: attempt to create file in place of already
existing symlink. On error exit put_vnode was called explicitly before
returning error. The second, implicit call to put_vnode was issued on
destroying the VNodePutter instance that references the same vnode. At
this time the vnode has references count equal to 0 so corresponding
panic was executed. Great thanks to Ingo for pointing it out!

Fixes #9140.
2013-09-10 19:47:36 +02:00
Jérôme Duval
c4a8ae38d4 realtime_sem: fixed a compiler warning.
* the variable is initialized anyway on the success code path.
2013-09-07 11:34:21 +02:00
Oliver Tappe
64c4bd1dc2 2nd attempt at fixing build of btrfs and packagefs.
* adding zlib to the kernel unfortunately introduces a cyclic dependency
  with respect to the zlib, haiku and haiku_devel packages (AFAICS)
* circumvent this by building kernel_zlib as a static library again,
  this time with PIC, such that it can be used by kernel add-ons
2013-09-02 12:03:05 +02:00
Oliver Tappe
0cb3f70926 Revert "Fix build problems of btrfs and packagefs for x86_64."
This reverts commit f272e63f393449d3a816970ca632764895a78cd6.
2013-09-02 12:03:05 +02:00
Pawel Dziepak
35cc5c9897 vfs: Allow non-null-terminated UNIX socket pathnames
This patch fix one of the compatibility issues mentioned in #3255. It
allows applications to call bind() or connect() passing an sockaddr_un
structure with a pathname that is not null-terminated.

Some systems did not require pathname in sockaddr_un::sun_path to be
null-terminated, instead the end of the string is determined by the size
of the structure passed as an argument of bind() or connect().

The standard is a bit vague in this matter but suggest that the path
should be null-terminated and the functions bind() and connect() should
be given sizeof(sockaddr_un) as a structure size.
2013-08-31 05:41:12 +02:00
Oliver Tappe
c5c787ea41 Fix build problems of btrfs and packagefs for x86_64.
* Both filesystems used to link to a static kernel-zlib, which 
  was being built with -fno-pic. This doesn't work on x86_64 as the 
  filesystem add-ons are meant to be relocatable, which requires their 
  code to be compiled as position independent.
  Solve that by moving zlib into the kernel, so any add-on can just use
  it from there (packagefs is mandatory, so we can't really do without 
  zlib anyway).
2013-08-29 22:44:50 +02:00
Oliver Tappe
03aa9653d0 Move UsePrivateSystemHeaders into arch-specific block. 2013-08-29 22:44:49 +02:00
Jérôme Duval
eb5639c43e device_manager: tune the search paths
* the Virtio RNG PCI device has the class 0, so can't be found using usual
paths. Add 0 to _AlwaysRegisterDynamic() and "busses/virtio" in _GetNextDriverPath()
for non generic drivers to help finding virtio_pci.
* The RNG Virtio device is generic and needs "busses/random" to find virtio_rng.
2013-08-29 18:47:45 +02:00
Oliver Tappe
af0200d6ef Fix build problem in glue code for x86_64. 2013-08-27 23:30:23 +02:00
Jérôme Duval
0edcbd2754 apic: serialize writes to x2apic MSR...
as required by the specifications (it isn't needed with memory mapped i/o).
2013-08-26 21:48:33 +02:00
Jérôme Duval
787773400c Added x2APIC support.
* Mostly useful for virtualization at the moment. Works in QEmu.
* Can be enabled by safemode settings/menu.
* Please note that x2APIC normally requires use of VT-d interrupt remapping feature
on real hardware, which we don't support yet.
2013-08-26 21:08:21 +02:00
Ingo Weinhold
e64db4da44 Also mount the packagefs at ~/config 2013-08-25 18:23:11 +02:00
Oliver Tappe
5657c5eaa5 Fix #9928: broken printf specifiers "%La" and "%LA"
* fix unitialized variables in __printf_fphex() in case of architectures
  without support for long double - this triggered unreliable results
  or crashes when using %La or %La on x86
* activate long double implementation in use for x86_64 for x86, too,
  as they share the long double format
(cherry picked from commit d1716b277c)
2013-08-21 18:04:11 +02:00
Oliver Tappe
d1716b277c Fix #9928: broken printf specifiers "%La" and "%LA"
* fix unitialized variables in __printf_fphex() in case of architectures
  without support for long double - this triggered unreliable results
  or crashes when using %La or %La on x86
* activate long double implementation in use for x86_64 for x86, too,
  as they share the long double format
2013-08-21 18:01:14 +02:00
Ingo Weinhold
64264fa6ac Use Objects instead of KernelObjects
Should we actually require differently built glue code for the kernel or
kernel add-ons, which should build a separate set.
2013-08-17 09:10:31 +02:00
Ingo Weinhold
ce76b7e202 Fix strrchr()
* For the comparison cast the character parameter to char as required
  by the spec.
* Fix broken handling of strrchr(..., 0). It is supposed to return a
  pointer to the end of the string. It did return a pointer to the
  start.
2013-08-13 21:30:30 +02:00
Ingo Weinhold
bddca41824 runtime loader: fix secondary arch search paths 2013-08-06 03:45:06 +02:00
Ingo Weinhold
a56422b448 VFS: fs_mount(): fix FS name leak
Fixes #9909.
2013-08-01 15:43:24 +02:00
Ingo Weinhold
b0944c78b0 More work towards hybrid support
* All packaging architecture dependent variables do now have a
  respective suffix and are set up for each configured packaging
  architecture, save for the kernel and boot loader variables, which
  are still only set up for the primary architecture.
  For convenience TARGET_PACKAGING_ARCH, TARGET_ARCH, TARGET_LIBSUPC++,
  and TARGET_LIBSTDC++ are set to the respective values for the primary
  packaging architecture by default.
* Introduce a set of MultiArch* rules to help with building targets for
  multiple packaging architectures. Generally the respective targets are
  (additionally) gristed with the packaging architecture. For libraries
  the additional grist is usually omitted for the primary architecture
  (e.g. libroot.so and <x86>libroot.so for x86_gcc2/x86 hybrid), so that
  Jamfiles for targets built only for the primary architecture don't
  need to be changed.
* Add multi-arch build support for all targets needed for the stage 1
  cross devel package as well as for libbe (untested).
2013-08-01 08:54:06 +02:00
Ingo Weinhold
13dc541c25 libroot: os/arch: remove unsupported architectures 2013-08-01 08:54:05 +02:00
Jérôme Duval
46f7a54d8c MSI: Use the effective APIC id of the boot CPU for the address destination.
* This should only affect systems where the CPU ids aren't sequential (mostly
non Intel).
* Fixes #9807.
2013-07-29 17:36:03 +02:00
Ingo Weinhold
5163e1c62d Revert "Introduce vnode op supports_operation(), fix devfs_io()"
This reverts commit 98a5231fe5.
2013-07-27 23:31:23 +02:00
Ingo Weinhold
98a5231fe5 Introduce vnode op supports_operation(), fix devfs_io()
devfs_io() can't fall back to calling vfs_synchronous_io(), if the
device driver doesn't support handling requests asynchronously. The
presence of the io() hook leads the VFS (do_iterative_fd_io()) to
believe that asynchronous handling is supported and set a
finished-callback on the request which calls the io() hook to start the
next chunk. Thus, instead of iterating through the request in a loop
the iteration happens recursively. For sufficiently fragmented requests
the stack may overflow (ticket #9900).

* Introduce a new vnode operation supports_operation(). It can be called
  by the VFS to determine whether a present hook is actually currently
  supported for a given vnode.
* devfs: implement the new hook and remove the fallback handling in
  devfs_io().
* vfs_request_io.cpp: use the new hook to determine whether the io()
  hook is really supported.
2013-07-27 17:45:59 +02:00
Alex Smith
271b27d5a3 x86_64: Set vector in iframe/debug state to 99 for syscalls.
Although syscalls are done through SYSCALL and therefore don't actually
have an interrupt number, set it to 99 (the syscall vector on 32-bit)
in the iframe so that a syscall frame can be identified. Also added
vector/error_code to x86_64_debug_cpu_state for Debugger to use, not
sure why I didn't put them there in the first place.
2013-07-25 20:04:25 +01:00
Jérôme Duval
0994532db4 boot_loader: checks whether mapping rsdt header succeeded.
... and exits in case of failure. Reported by mt in #9895.
2013-07-25 18:52:06 +02:00
Ingo Weinhold
4387d6b33f Merge remote-tracking branch 'remotes/haiku/master' into package-management 2013-07-11 18:09:03 +02:00
Ingo Weinhold
02b151d3e3 MultiAddressSpaceLocker::AddAreaCacheAndLock(): race condition
* Add a VMArea* version of AddArea().
* AddAreaCacheAndLock(): Use the new AddArea() version. This not only
  saves the ID hash table lookup, but also fixes a race condition with
  delete_area(). delete_area() removes the area from the hash before
  removing it from its cache, so iterating through the cache's areas
  can turn up an area that no longer is in the hash. In that case we
  would fail immediately. The new AddArea() won't fail in this
  situation, though.

Fixes #9686: vm_copy_area() could fail for the "commpage" area. That's
an area all teams share, so any team terminating while another one was
fork()ing could trigger it.
2013-07-11 17:56:26 +02:00
Ingo Weinhold
7bea0205ed vm_page_allocate_page_run(): fix debug output 2013-07-11 17:56:20 +02:00
Ingo Weinhold
c53508b730 kernel tracing: implement fallback for meta data allocation
We the meta data area couldn't be allocated in any of the supported
(reattachable) places, just use a static allocation. The tracing feature
wouldn't be available at all in such a case.
2013-07-11 17:56:13 +02:00
Jérôme Duval
86340fcef3 kernel/int.cpp: typo fix 2013-07-09 23:53:26 +02:00
Ingo Weinhold
7e78b434f4 Merge remote-tracking branch 'haiku/master' into package-management
Conflicts:
	build/jam/HaikuImage
	build/jam/OptionalPackageDependencies
	build/jam/OptionalPackages
	build/scripts/build_cross_tools_gcc4
	src/add-ons/translators/icns/Jamfile
	src/add-ons/translators/jpeg/Jamfile
2013-07-08 14:01:00 +02:00
Alex Smith
e818b9707c Call debug_cleanup() before converting kernel_args to 64-bit addresses, fixes #9842.
In debug_cleanup(), if the debug syslog buffer is disabled (the default when
KDEBUG_LEVEL is 0), then a new buffer is allocated with kernel_args_malloc().
This is done after kernel_args addresses have been converted to 64-bit, so
the address the kernel gets will be 32-bit, resulting in the page fault seen
in #9842. Fixed by moving the call to debug_cleanup() to before
convert_kernel_args().
2013-07-04 13:01:07 +01:00
Jérôme Duval
d3b108c53d virtio_scsi: added to the image.
* device_manager: scans busses/scsi for generic drivers.
2013-07-02 22:48:25 +02:00
Jérôme Duval
3c47ce8421 DMAResource: mutex_lock() before calling mutex_destroy(). 2013-07-02 19:00:43 +02:00
Ingo Weinhold
2eb2b522bf Enforce team and thread limits
Also fixes incorrect team accounting in case of error when creating
a team. The previously incremented sUsedTeams wasn't decremented again.
2013-07-02 01:57:30 +02:00
Ingo Weinhold
cbcde3ba80 kernel team.cpp: fix unbalanced io_context ref management
... in case of team creation error. Once assigned to Team::io_context
the Team object takes responsibility of the I/O context object and
releases the reference on destruction. load_image_internal() and
fork_team() were thus releasing one reference too many.

Fixes #9851.
2013-07-02 01:57:30 +02:00
Ingo Weinhold
8c974aa800 node monitor: add TODO regarding the syscalls 2013-06-27 21:57:43 +02:00
Ingo Weinhold
0d603ac65c Fix node monitoring slot accounting for stop_watching()
NodeMonitorService::RemoveUserListeners() didn't decrement
io_context::num_monitors when removing a listener, so limit checks
would be off afterwards.
2013-06-27 21:57:43 +02:00
Oliver Tappe
ece582547a Improve robustness of asctime() and asctime_r().
* Return NULL and set EINVAL if the given tm pointer is NULL. This 
  isn't mandated by the POSIX base specs, but it just makes sense.
2013-06-23 17:01:12 +02:00
Oliver Tappe
51bce887cd Fix behaviour of localtime(), gmtime() and mktime().
* In case the locale backend could not be loaded, these functions (and
  their reentrant counterparts) just returned an error. So we reactivate
  parts of the BSD-/Olson-implementation in localtime_fading_out.c in
  order to use them as fallback.
* Cleanup localtime_fading_out.c (remove a lot of unused cruft).
2013-06-23 16:43:23 +02:00
Oliver Tappe
b4dc51b39a Fix behaviour of towlower(), towupper() and towctrans():
* all those functions need to return the given wc unchanged in case of
  error, not 0
* towctrans() didn't actually look at the requested transition, but 
  always acted as if _ISlower was given
2013-06-23 11:45:38 +02:00
Jérôme Duval
6121ae660c device_manager: init DMAResource::fScratchVecs. 2013-06-15 16:26:50 +02:00
Ingo Weinhold
178da21ad1 Update icu package
Also use the new build feature rules.
2013-06-13 18:42:44 +02:00
Ingo Weinhold
c80c7982c8 boot packagefs: Fix zlib dependency declaration 2013-06-08 00:18:28 +02:00
Ingo Weinhold
3dadb47f21 boot loader tarfs: Declare dependency to zlib package 2013-06-08 00:04:45 +02:00
Oliver Tappe
729c6333ad Runtime loader: rename compatibilitySubDir to abiSpecificSubDir. 2013-06-05 18:32:47 +02:00