* Moved method documentation from headers to source files.
* Fixed small problems (memory leaks, unsafe string duplication,...).
* Added TODOs where I spotted problems.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21721 a95241bf-73f2-0310-859d-f6bbb57e9c96
for _kern_load_image().
* Added KMessage to the runtime_loader (a bit hacky, though) - it will use
it to deliver the above mentioned functionality.
* load_dependencies() did return the wrong status code in case a library
was missing; now it returns B_MISSING_LIBRARY.
* load_dependencies() will now try to load all dependencies when a report
message is requested; therefore, all missing libraries are listed.
* Renamed uspace_program_args to user_space_program_args.
* The kernel filled in various members of the user_space_program_args structure
unsafely, ie. was not using user_memcpy().
* Renamed some local variables in team.c to better fit our style guide (ie.
uargs to userArgs).
* Changed Tracker to use the new _kern_load_image() variant on Haiku to retrieve
and report all missing libraries. This fixes bug #1324.
* Adapted kernel_cpp.cpp to the runtime loader as well; the latter will now
compile with _LOADER_MODE defined.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21715 a95241bf-73f2-0310-859d-f6bbb57e9c96
now fail with B_BAD_VALUE. It's also no longer possible to overwrite the begin
of a partition by specifying a negative position, as negative positions are no
longer translated into 0.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21702 a95241bf-73f2-0310-859d-f6bbb57e9c96
* More conditional debug code (wrt page transitions between caches).
* Replaced debugger command cache_chain by a nicer cache_tree.
* While handling a soft fault: When we temporarily unlock a cache, it
can theoretically become busy. One such occurrence is now handled
properly, two more panic() ATM, though should be fixed.
* When merging caches, we do now always replace a dummy page in the
upper cache, not only when the concurrent page fault is a read fault.
This prevents a page from the lower (to be discarded) cache from still
remaining mapped (causing a panic).
* When merging caches and replacing a dummy page, we were trying to
remove the dummy page from the wrong cache (causing a panic).
The Haiku kernel seems now to run shockingly stable. ATM, we have more
than two hours uptime of a system booted and running over network. We
didn't manage to get it down by fully building Pe, downloading, unzipping,
and playing with various stuff. Someone should finally fix all those app
server drawing bugs, though (hint, hint! ;-)).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21672 a95241bf-73f2-0310-859d-f6bbb57e9c96
misrouting when the net server set up the loop device, thus stopping the
net boot process.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21662 a95241bf-73f2-0310-859d-f6bbb57e9c96
Answered Travis question. We save the registers from the exception
causing the double fault in the double fault iframe, since otherwise it
would contain only completely unusable values.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21661 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Refactored RescanDiskSystems(). Pulled out a function
_RescanDiskSystems() that scans for either file or partitioning
systems. RescanDiskSystems(), which scanned for file systems only
before, is used from the constructor as well (open_module_list()
works in the early boot process since a while).
* Made InitialDeviceScan() and partition scanning safe to be called a second
time. We call it directly after the kernel has mounted the boot
volume, now, so that additional disk systems from the boot volume have a
chance to recognize previously unrecognized partitions. This is a
temporary change only; later the disk device manager shall
automatically find out when new disk systems/devices/whatever are
available.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21655 a95241bf-73f2-0310-859d-f6bbb57e9c96
When loading the driver settings the defaults don't override the
previous variable values anymore.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21654 a95241bf-73f2-0310-859d-f6bbb57e9c96
one, not the one intended for the double fault) since r20131. IOW double faults are
now working again.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21645 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Minor cleanup, reordered header files to go from private/local to public/global.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21623 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Images preloaded by the boot loader had to be modules to be of any use
to the kernel. Extended the mechanism so that any images not accepted
by the module code would later be tried to be added as drivers by the
devfs. This is a little hacky ATM, since the devfs manages the drivers
using a hash map keyed by the drivers inode ID, which those drivers
obviously don't have.
* The devfs emulates read_pages() using read(), if the device driver
doesn't implement the former (all old-style drivers), thus making it
possible to BFS, which uses the file cache which in turn requires
read_pages(), on the device. write_pages() emulation is still missing.
* Replaced the kernel_args::boot_disk structure by a KMessage, which can
more flexibly be extended and deals more gracefully with
arbitrarily-size data. The disk_identifier structure still exists,
though. It is added as message field in cases where needed (non net
boot). Moved the boot_drive_number field of the bios_ia32 platform
specific args into the message.
* Made the stage 1 PXE boot loader superfluous. Moved the relevant
initialization code into the stage 2 loader, which can now be loaded
directly via PXE.
* The PXE boot loader does now download a boot tgz archive via TFTP. It
does no longer use the RemoteDisk protocol (it could actually be
removed from the boot loader). It also parses the DHCP options in the
DHCPACK packet provided by PXE and extracts the root path to be
mounted by the kernel.
* Reorganized the boot volume search in the kernel (vfs_boot.cpp) and
added support for network boot. In this case the net stack is
initialized and the network interface the boot loader used is brought
up and configured. Since NBD and RemoteDisk are our only options for
net boot (and those aren't really configurable dynamically) ATM, the
the boot device is found automatically by the disk device manager.
Booting via PXE does work to some degree now. The most grievous problem
is that loading certain drivers or kernel modules (or related activity)
causes a reboot (likely a triple fault, though one wonders where our
double fault handler is on vacation). Namely the keyboard and mouse input
server add-ons need to be deactivated as well as the media server.
A smaller problem is the net server, which apparently tries to
(re-)configure the network interface we're using to boot, which
obviously doesn't work out that well. So, if all this stuff is disabled
Haiku does fully boot, when using the RemoteDisk protocol (not being
able to use keyboard or mouse doesn't make this a particular fascinating
experience, though ;-)). I had no luck with NBD -- it seemed to have
protocol problems with the servers I tried.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21611 a95241bf-73f2-0310-859d-f6bbb57e9c96
with the same size as the class is defined.
* The SetTo() methods do now accept an unspecified (negative) bufferSize
in case of being told to initialize from the given buffer.
* Added handy Get*() methods returning a field element value or a
supplied default value, if the field element doesn't exist.
* Added also handy Set*() methods setting the value of first element of
a field, i.e. adding it, if it didn't exist before, otherwise
replacing the old value. Only for fixed size types.
* Moved _FindType() inline template method into the header.
* Made the source file fit for use in the boot loader. If the macro
KMESSAGE_CONTAINER_ONLY is defined, the message sending/receiving part
is omitted.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21605 a95241bf-73f2-0310-859d-f6bbb57e9c96
removed in several cases.
* vfs_get_vnode_cache() now always gives out a reference to the cache it
returns; if it needs to allocate a new one, the vnode owns one reference,
and the caller another.
* therefore, file_cache_create() now owns a reference to its vm_cache_ref, and
frees it in file_cache_delete().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21533 a95241bf-73f2-0310-859d-f6bbb57e9c96
relevant for the image creation.
* The CopySetHaikuRevision propagates the value of the
HAIKU_INCLUDE_IN_IMAGE variable from the source to the target.
* Propagate the value of HAIKU_INCLUDE_IN_IMAGE from "kernel" to
"kernel_$(TARGET_ARCH)".
Now "jam update-install kernel" should work as expected.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21527 a95241bf-73f2-0310-859d-f6bbb57e9c96
* vm_copy_on_write_area() now does no longer overwrite the ref_count, but keeps
it's reference to the cache until it has unlocked it.
* It now also locks its reference from the start, preventing any other thread
to interfere.
* vm_cache_remove_consumer() now detects if it has to remove a foreign busy
page itself in order to preserve a mapped page.
* vm_soft_fault() now keeps a reference to the cache that owns the page to be
mapped until it has actually mapped it.
* vm_unmap_pages() removed the mappings of all pages of the area instead of only
those that are within the requested range.
* Kept (disabled) debug output for convenience.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21482 a95241bf-73f2-0310-859d-f6bbb57e9c96
Disabled by default, but all kernel devs are *highly* recommended to turn them on for your builds and see if it trips anything, and then fix it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21477 a95241bf-73f2-0310-859d-f6bbb57e9c96
When iterating through modules, the iterator was loading the module file, inserting it into the module image hash. Then, the first time get_module() was called on a module contained in the image, it was trying to load the image again. It probably actually was. Changed the logic to call get_module_image() which checks to see if it's already loaded.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21476 a95241bf-73f2-0310-859d-f6bbb57e9c96
also works for partial matches (which for example broke "running" and "ready"
when you only entered a part of it).
* Renamed the global args pointer to sArguments.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21324 a95241bf-73f2-0310-859d-f6bbb57e9c96
used during early boot. Thanks!
* Fixed open_module_list() so that it can deal with a NULL prefix.
* Added a note that get_next_loaded_module_name() is implemented incorrectly.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21315 a95241bf-73f2-0310-859d-f6bbb57e9c96
in the vnode hash; that's a bug in the FS that shouldn't be ignored that way.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21262 a95241bf-73f2-0310-859d-f6bbb57e9c96
see bug #1248.
* Closing a pipe now also removes it from the public namespace and marks it for
deletion, and thus, there are no more left-overs after using a pipe.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21261 a95241bf-73f2-0310-859d-f6bbb57e9c96
This should allow you to actually unmount /pipe if you so desire.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21199 a95241bf-73f2-0310-859d-f6bbb57e9c96
libroot). It's available in the kernel through the private
get_haiku_revision() and added to the kernel syslog output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21173 a95241bf-73f2-0310-859d-f6bbb57e9c96
* PowerStatus is now using this API when compiled for Haiku.
* Note, I'm not sure why yet, but running PowerStatus in the background
crashes at least my laptop after some time.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21154 a95241bf-73f2-0310-859d-f6bbb57e9c96
are used at the same time.
* Added a TODO item: pipefs entries aren't deleted yet after usage!
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21108 a95241bf-73f2-0310-859d-f6bbb57e9c96
- on CACHE_DURING_BOOT init benaphore count with 1.
- account for allocated space on early_allocate_pages.
- fixed slab position calculation in small slabs.
- we can now init all allocator sizes early rather than later.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20914 a95241bf-73f2-0310-859d-f6bbb57e9c96
Reversed arguments in kernel settings file, now you only need to uncomment a line
to get the non-default setting. Explained default setting in comments.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20907 a95241bf-73f2-0310-859d-f6bbb57e9c96
- call the reclaimer callback when low on memory.
- use the depot when on multi-cpu setups (for scalability).
- fixed the amount of memory spent on slabs for very large objects.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20889 a95241bf-73f2-0310-859d-f6bbb57e9c96
close all of its file descriptors), code outside of the core kernel would be executed
in the descriptor's close/free hooks.
Since the semaphore timeout code, and send_data()/receive_data() rely on the
thread being available in the thread hash, they wouldn't work anymore.
This fixes bug #1168. Thanks to Marcus for providing such a nice test case :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20808 a95241bf-73f2-0310-859d-f6bbb57e9c96
quite a bit in the past already); it somehow doesn't work right with how semaphores
are used in BeOS/Haiku.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20759 a95241bf-73f2-0310-859d-f6bbb57e9c96
threads with higher priorities a much better scheduling experience, it
also creates a problem as soon as more than one higher priority thread
waits on a resource held by a lower priority thread; the higher priority
threads play ping-pong, and the lower priority thread doesn't get it's
chance.
* Increased the probability of skipping a thread priority.
* I won't do any other changes on the scheduler, that's meianote's job now :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20758 a95241bf-73f2-0310-859d-f6bbb57e9c96
The solution is less than optimal, but should work for now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20722 a95241bf-73f2-0310-859d-f6bbb57e9c96
so we can't easily check if the remaining mappings are valid - therefore I disabled
the check completely.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20654 a95241bf-73f2-0310-859d-f6bbb57e9c96
if the page is currently copied, the source page still has mappings.
* vm_copy_on_write_area() did not set the cache type for the upper cache.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20530 a95241bf-73f2-0310-859d-f6bbb57e9c96
* read_dir() is supposed to return B_OK and and a count of 0 when
reaching the end of the directory. In case the node in question could
not be found, we were looping infinitely.
* free_dir_cookie() was not invoked.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20519 a95241bf-73f2-0310-859d-f6bbb57e9c96
small to hold the information for the requested I/O size.
* get_file_map() returned B_BUFFER_OVERFLOW already in case the array
was exactly as large as needed.
* read_chunk_into_cache() and write_chunk_to_cache() will no longer
override their local "size" variable.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20509 a95241bf-73f2-0310-859d-f6bbb57e9c96
sets a fault handler, so that an invalid memory access while executing
the command (address typos always do the trick :-) won't result in
another KDL session on top of the current one, which wouldn't even be
"cont"able.
All pieces of code setting a fault handler do now save and reset the
previous one, so that e.g. a user_memcpy() in a debugger command doesn't
disturb the mechanism.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20500 a95241bf-73f2-0310-859d-f6bbb57e9c96
unload_kernel_add_on(). The former one could lead to deadlocks with
load_kernel_add_on() (e.g. occasionally the boot process would hang).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20485 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added a few comments.
* Simplified the nested while loops by dropping the special handling for the
first iovec and restructuring the innermost loop. This also rules out
the possibility of a zero-length temporary vec. IMHO the readability
has improved quite a bit (YMMV :-). Hopefully without introducing new
bugs; please review!
* Corrected computation of totalSize in case less than size has been
read/written.
* Also set *_numBytes in case all fileVecs have been processed. Only
relevant in case the request extends beyond the end of file.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20483 a95241bf-73f2-0310-859d-f6bbb57e9c96
