The official release one stay the well-known one, just renamed to show it's trademarked images.
Fixed#6183.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38891 a95241bf-73f2-0310-859d-f6bbb57e9c96
This might help with ACPI shutdown issues, if not this change can be reverted. Not verified as it works on all my machines even without this.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38585 a95241bf-73f2-0310-859d-f6bbb57e9c96
Add support for both discovery and regular iSCSI sessions. Command and status
sequence numbers do differentiate between session and connection but only
one connection per session is currently supported.
Code is Big Endian for now, so compile it for ppc only.
Based on RFC 3720 ff. Tested against OpenSolaris 2009.06.
Resolves most of ticket #5319.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38536 a95241bf-73f2-0310-859d-f6bbb57e9c96
Pass the desired window size from the socket to the service.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38530 a95241bf-73f2-0310-859d-f6bbb57e9c96
Modelled after UDP, add limited TCP support to the boot net stack. The socket
works by queuing received packets as well as sent packets that have not yet
been ACK'ed. Some known issues are documented, especially there's only limited
congestion control. I.e., we send immediately and in unlimited quantity, thus
its use should be restricted to local networks, and due to a fixed window size
there is potential for our socket being overrun with data packets before they
are read. Some corner cases like wrapping sequence numbers may cause a timeout.
The TCP implementation is based on Andrew S. Tanenbaum's "Computer Networks",
4th ed., as well as lecture notes from Prof. W. Effelsberg, the relevant RFCs
and Wikipedia. The pseudo-random number Galois LFSR used for the sequence
number was suggested by Endre Varga.
Since the code is unlikely to get much smaller, better merge it now so that
subsequent changes get easier to review. No platform actively uses TCP sockets
yet, and the receiving code has been reviewed for endianness issues and should
terminate okay after verifying the checksum if no sockets are open.
Based on a version tested with custom code (#5240) as well as with iSCSI.
Compile-tested boot_loader_openfirmware, pxehaiku-loader with gcc4 and
haiku_loader with gcc2. Closes ticket #5240.
Changes from #5240 proposed patch:
* Various bug fixes related to queuing, some memory leaks fixed.
* Never bump the sequence number when dequeuing a packet. It's done afterwards.
* Don't bump the sequence number again when resending the queue or ACK'ing.
* Aggressively ACK while waiting for packets.
* Don't queue sent ACK-only packets.
* More trace output, esp. for queue inspection.
* Adapted use of TCP header flags to r38434.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38472 a95241bf-73f2-0310-859d-f6bbb57e9c96
Fix style issue, pointed out by Axel.
No functional changes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38456 a95241bf-73f2-0310-859d-f6bbb57e9c96
Add protocol number and struct for TCP header.
First minuscule part of ticket #5240.
Checked that pxehaiku_loader still compiles, too.
Changes from proposed patch:
* Simplify struct by merging flags into one 8-bit field.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38434 a95241bf-73f2-0310-859d-f6bbb57e9c96
* _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
* 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
* 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
* 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
video_splash.cpp and boot_splash.cpp will be updated to utilize it.
Relates to #6183. See #6255 for issues on using 'splash_logo-development.png'
with generate_boot_screen.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37739 a95241bf-73f2-0310-859d-f6bbb57e9c96
See http://clang.llvm.org/compatibility.html#c++ why it is needed. Note that HashMap.h Key and Value are typenames as well.
Afaict this is correctly done, builds and runs on gcc4. This fixes#5892.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37550 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_page::Init().
* Made vm_page::wired_count private and added accessor methods.
* Added VMCache::fWiredPagesCount (the number of wired pages the cache
contains) and accessor methods.
* Made more use of vm_page::IsMapped().
* vm_copy_on_write_area(): Added vm_page_reservation* parameter that can be
used to request a special handling for wired pages. If given the wired pages
are replaced by copies and the original pages are moved to the upper cache.
* vm_copy_area():
- We don't need to do any wired ranges handling, if the source area is a
B_SHARED_AREA, since we don't touch the area's mappings in this case.
- We no longer wait for wired ranges of the concerned areas to disappear.
Instead we use the new vm_copy_on_write_area() feature and just let it
copy the wired pages. This fixes#6288, an issue introduced with the use
of user mutexes in libroot: When executing multiple concurrent fork()s all
but the first one would wait on the fork mutex, which (being a user mutex)
would wire a page that the vm_copy_area() of the first fork() would wait
for.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37460 a95241bf-73f2-0310-859d-f6bbb57e9c96
Suggested by Ingo in ticket #6139. Code is adapted from x86.
Note that on ppc64 GPR1 needs to be 64-bit, thus the choice of addr_t.
Resolves part of ticket #6160.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37281 a95241bf-73f2-0310-859d-f6bbb57e9c96
In r33670 the svn:eol-style property was dropped, which took care of
locally converting the line endings to the user's native style.
While most files use Unix-style LF line endings, some files have
Windows-style CR LF line endings.
Assure that the following r37262 directories use Unix-style line endings:
src/system/boot/
src/system/boot/arch/
src/system/boot/arch/ppc/
src/system/boot/loader/
src/system/boot/loader/net/
src/system/boot/platform/
src/system/boot/platform/openfirmware/
src/system/boot/platform/openfirmware/arch/
src/system/boot/platform/openfirmware/arch/ppc/
src/system/kernel/
src/system/kernel/arch/
src/system/kernel/arch/ppc/
src/system/kernel/platform/
src/system/kernel/platform/openfirmware/
headers/private/kernel/
headers/private/kernel/arch/
headers/private/kernel/arch/ppc/
headers/private/kernel/platform/
headers/private/kernel/platform/openfirmware/
headers/private/kernel/boot/
headers/private/kernel/boot/net/
headers/private/kernel/boot/platform/
headers/private/kernel/boot/platform/openfirmware/
This avoids patches containing irrelevant lines unintentionally converted.
No functional changes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37265 a95241bf-73f2-0310-859d-f6bbb57e9c96
headers and respectively added includes in source files.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37259 a95241bf-73f2-0310-859d-f6bbb57e9c96
ClearAccessedAndModified() implementations into helper methods PageUnmapped()
and UnaccessedPageUnmapped() in the base class.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37187 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_available_not_needed_memory() version that can be called from within the
kernel debugger.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37167 a95241bf-73f2-0310-859d-f6bbb57e9c96
kernel private.
* Moved dumping code from dump_cache() to new VMCache::Dump().
* Override VMCache::Dump() in VMVnodeCache to also print the vnode.
* Removed no longer needed VMCache::GetLock().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37138 a95241bf-73f2-0310-859d-f6bbb57e9c96
restrictions for virtual/physical addresses.
* vm_page_allocate_page_run():
- Fixed conversion of base/limit to array indexes. sPhysicalPageOffset was not
taken into account.
- Takes a physical_address_restrictions instead of base/limit and also
supports alignment and boundary restrictions, now.
* map_backing_store(), VM[User,Kernel]AddressSpace::InsertArea()/
ReserveAddressRange() take a virtual_address_restrictions parameter, now. They
also support an alignment independent from the range size.
* create_area_etc(), vm_create_anonymous_area(): Take
{virtual,physical}_address_restrictions parameters, now.
* Removed no longer needed B_PHYSICAL_BASE_ADDRESS.
* DMAResources:
- Fixed potential overflows of uint32 when initializing from device node
attributes.
- Fixed bounce buffer creation TODOs: By using create_area_etc() with the
new restrictions parameters we can directly support physical high address,
boundary, and alignment.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37131 a95241bf-73f2-0310-859d-f6bbb57e9c96
Kernel doesn't use it, and it could be regenerated in the kernel if it did need it.
This also unlocks the apic range the bios can use. Previously the apic ids would have
to fit within 0..MAX_CPUS or it'd reject the cpu. Some boxes (mine in particular)
seem to sparsely populate the apic id so that the range is pretty large.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37108 a95241bf-73f2-0310-859d-f6bbb57e9c96
was used.
* Renamed X86VMTranslationMap to X86VMTranslationMap32Bit and pulled the paging
method agnostic part into new base class X86VMTranslationMap.
* Moved X86PagingStructures into its own header/source pair.
* Moved pgdir_virt from X86PagingStructures to X86PagingStructures32Bit where
it is actually used.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37055 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed i386_context_switch() to x86_context_switch().
* x86_context_switch() no longer sets the page directory.
arch_thread_context_switch() does that explicitly, now. This allows to solve
the TODO by reordering releasing the previous paging structures reference and
setting the new page directory.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37024 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed vm_translation_map_arch_info to X86PagingStructures, and all
members and local variables of that type accordingly.
* arch_thread_context_switch(): Added TODO: The still active paging structures
can indeed be deleted before we stop using them.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37022 a95241bf-73f2-0310-859d-f6bbb57e9c96
that are wide enough for both virtual and physical addresses.
* DMABuffer, IORequest, IOScheduler,... and code using them: Use
generic_io_vec and generic_{addr,size}_t where necessary.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36997 a95241bf-73f2-0310-859d-f6bbb57e9c96
address ranges, and a set of support functions working with it.
* Changed the type of the kernel_args physical address range arrays to
phys_addr_range and adjusted the code working with those.
* Removed a bunch of duplicated address range code in the PPC's mmu.cpp.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36947 a95241bf-73f2-0310-859d-f6bbb57e9c96
where appropriate.
* Typedef'ed page_num_t to phys_addr_t and used it in more places in
vm_page.{h,cpp}.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36937 a95241bf-73f2-0310-859d-f6bbb57e9c96
created, and moved the heap's grow and VIP heap initialization to it. Should
fix#5956.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36855 a95241bf-73f2-0310-859d-f6bbb57e9c96
map_backing_store() doesn't commit memory when this flag is given.
* Used the new flag vm_copy_area(): We no longer commit memory for read-only
areas. This prevents read-only mapped files from suddenly requiring memory
after fork(). Might improve the situation on machines with very little RAM
a bit.
We should probably mark writable copies over-committing, since the usual
case is fork() + exec() where the child normally doesn't need more than a
few pages until calling exec(). That would significantly reduce the memory
requirement for jamming the Haiku tree.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36651 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Separated the other stuff previously done in debug_init_post_vm() to the new
debug_init_post_settings().
* Removed superfluous status_t return codes - they are ignored, anyway, and if
there really is a show stopper in the init process, panicking would be the
thing one should do.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36623 a95241bf-73f2-0310-859d-f6bbb57e9c96
implemented for any architecture yet.
* vm_set_area_memory_type(): Call VMTranslationMap::ProtectArea() to change the
memory type for the already mapped pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36574 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Don't set the VMArea's memory type in arch_vm_set_memory_type(), but let the
callers do that.
* vm_set_area_memory_type(): Does nothing, if the memory type doesn't change.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36573 a95241bf-73f2-0310-859d-f6bbb57e9c96
of consistency.
* Moved the B_OVERCOMMITTING_AREA flag from B_KERNEL_AREA_FLAGS to
B_USER_AREA_FLAGS, since we really allow it to be passed from userland.
* Most VM syscalls check the provided protection against B_USER_AREA_FLAGS
instead of B_USER_PROTECTION, now. This way they allow for
B_OVERCOMMITTING_AREA as well.
* _user_map_file(), _user_set_memory_protection(): Check the protection like
the other syscalls do and use fix_protection() instead of doing that
manually.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36572 a95241bf-73f2-0310-859d-f6bbb57e9c96
boot CPU wait until all other CPUs are ready to wait. This solves a
theoretical problem in main(): The boot CPU could run fully through the early
initialization and reset sCpuRendezvous2 before the other CPUs left
smp_cpu_rendezvous(). It's very unlikely on real hardware that the non-boot
CPUs are so much slower, but it might be a concern in emulation.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36558 a95241bf-73f2-0310-859d-f6bbb57e9c96
scheduler. This avoids the need to use the send_signal_etc() work-around for
resume_thread() during the early kernel initialization. Might fix#5851.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36530 a95241bf-73f2-0310-859d-f6bbb57e9c96
free respective free and cached pages.
* Removed the unused vm_page_allocate_page_run_no_base().
* vm_page_allocate_page_run() (and allocate_page_run()):
- Use vm_page_reserve_pages() instead of vm_page_try_reserve_pages(), i.e.
wait until the reservation succeeds.
- Now we iterates two times through the pages to find a suitable page run. In
the first iteration it only looks for free/clear pages, in the second
iteration it also considers cached pages. This increases the chance of the
function to succeed, when a lot of caching is going on.
This reduces the amount of memory required to use the IOCache when booting
off the anyboot Live CD to around 160 MB in qemu. It also seems to work with
128 MB, but the syslog indicates that some memory allocations fail, which
is not exactly inspiring confidence.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36489 a95241bf-73f2-0310-859d-f6bbb57e9c96
swap space when the cache shrinks. Currently the implementation stil leaks
swap space of busy pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36373 a95241bf-73f2-0310-859d-f6bbb57e9c96
can safely be used.
* Since using the I/O APIC is disabled by default, I've removed the "return"
that prevented its use when enabled. Let's see if it already does anything.
* Adapted other arch_int.cpp with a bit of cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36290 a95241bf-73f2-0310-859d-f6bbb57e9c96
mapped page.
* debug_{mem,strl}cpy():
- Added "team" parameter for specifying the address space the address are
to be interpreted in.
- When the standard memcpy() (with fault handler) fails, fall back to
vm_debug_copy_page_memory().
* Added debug_is_debugged_team(): Predicate returning true, if the supplied
team_id refers to the same team debug_get_debugged_thread() belongs to.
* Added DebuggedThreadSetter class for scope-based debug_set_debugged_thread().
Made use of it in several debugger functions.
* print_demangled_call() (x86): Fixed unsafe memory access.
Allows KDL stack traces to work correctly again, even if the page daemon has
already unmapped the concerned pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36230 a95241bf-73f2-0310-859d-f6bbb57e9c96
interrupts (MSI).
* Add the remaining IDT entries and redirection functions in the interrupt code.
* Make the PIC end_of_interrupt() return a result to indicate whether the vector
was handled by this PIC. If it isn't we now issue a apic_end_of_interrupt()
in the assumption of apic local interrupt, MSI or IPI. This also removes
the need for the gUsingIOAPIC global and doing manual apic_end_of_interrupt()
calls in the SMP and timer code.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36221 a95241bf-73f2-0310-859d-f6bbb57e9c96
other places where previously the same functionality was duplicated. Also
seperated the header which was originally arch_smp.h into apic.h and arch_smp.h
again as some of it is MP and not actually APIC.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36182 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Implemented a tiny bit more sophisticated version of
estimate_max_scheduling_latency() that uses a syscall that lets the scheduler
decide.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36170 a95241bf-73f2-0310-859d-f6bbb57e9c96
locks.
* Added syscalls for a new kind of mutex. A mutex consists only of an int32 and
doesn't require any kernel resources. So it's initialization cannot fail
(it consists only of setting the mutex value to 0). An uncontended lock or
unlock operation can basically consist of an atomic_*() in userland. The
syscalls (when the mutex is contended) are a bit more expensive than semaphore
operations, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36158 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added new thread flag THREAD_FLAGS_ALWAYS_RESTART_SYSCALL. If set, it forces
syscall restart even when a signal handler without SA_RESTART was invoked.
* Fixed sigwait(): If one of requested signals wasn't already pending it would
never wake up. Also, the syscall always needs to be restarted, if interrupted
by another signal.
* Renamed a bunch of the POSIX signal function implementations which did return
an error code directly (instead via errno). Added correct POSIX functions
where needed.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36054 a95241bf-73f2-0310-859d-f6bbb57e9c96
return it.
* lock_memory_etc(): On error the VMAreaWiredRange object could be leaked.
* [un]lock_memory_etc(): Call VMArea::Unwire() with the cache locked and
explicitly delete the range object after unlocking the cache to avoid
potential deadlocks.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36035 a95241bf-73f2-0310-859d-f6bbb57e9c96
Since the requirement is that the area's top cache is locked, allocating
memory isn't allowed.
* lock_memory_etc(): Create the VMAreaWiredRange object explicitly before
locking the area's top cache.
Fixes#5680 (deadlocks when using the slab as malloc() backend).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36033 a95241bf-73f2-0310-859d-f6bbb57e9c96
* _user_map_file(), _user_unmap_memory(): Verify that the address (if given) is
page aligned.
* Reworked memory locking (wiring):
- VMArea does now have a list of wired memory ranges and supports waiting for
a range to be removed.
- vm_soft_fault():
- Added "wirePage" parameter that, if given, makes the function wire the
page and return it.
- Added "wiredRange" parameter (for calls from lock_memory_etc()) and made
sure we never unmap wired pages. This could e.g. happen when a page from a
lower cache was read-mapped and a write fault occurred. Now in such a
situation the function waits for the page to be unwired and restarts.
- All functions that manipulate areas in a way that could affect wired ranges
do now either require the caller to make sure there are no wired ranges in
the way or do that themselves. Added a few wait_if_*_is_wired() helper
functions for that purpose.
- lock_memory_etc():
- Does now also work correctly when the range spans more than one area.
- Adds VMAreaWiredRanges to the affected VMAreas and retains an address
space reference (so that the address space won't be deleted as long as a
wired range exists).
- Resolved TODO: The area's caches are now locked when
increment_page_wired_count() is called.
- Resolved TODO: The race condition due to missing locking after looking up
the page mapping is now prevented. We hold the cache locks (in case the
page is already mapped) and the new vm_soft_fault() parameter allows us
to get the page wired.
- unlock_memory_etc(): Changes symmetrical to those in lock_memory_etc() and
resolved all TODOs.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36030 a95241bf-73f2-0310-859d-f6bbb57e9c96
Added fields for temporary storage of the debug registers dr6 and dr7 to the
arch_cpu_info structure. The actual registers are stored at the beginning of
x86_exit_user_debug_at_kernel_entry() and read in
x86_handle_debug_exception().
The problem was that x86_exit_user_debug_at_kernel_entry() itself overwrote
dr7 and, if kernel breakpoints were enabled, dr6 could be overwritten anytime
after. So x86_handle_debug_exception() would find incorrect values in the
registers (definitely in dr7) and thus interpret the detected debug condition
incorrectly. Usually watchpoints were recognized as breakpoints.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35951 a95241bf-73f2-0310-859d-f6bbb57e9c96
arch_debug_registers instead.
* Call arch_debug_save_registers() on all CPUs when entering the kernel
debugger.
* Added debug_get_debug_registers() to return a specified CPU's saved
registers.
* x86:
- Replaced the previous arch_debug_save_registers() implementation. Disabled
getting the registers via the gdb interface for the time being.
- Fixed the "sc", "call", and "calling" commands to also work for threads
running on another CPU.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35907 a95241bf-73f2-0310-859d-f6bbb57e9c96
support file creation.
* Extended open() and open_from() to support O_CREAT to create files.
open_from() has got an optional "permissions" parameter for that purpose.
* Fixed errno. It would crash when being used. Also changed the POSIX functions
to return their error code via errno as expected.
* Added writev().
* FAT file system:
- Added support for reading long file names.
- Added support for creating files (8.3 name only) and writing to them.
- Enabled scanning partitions with it.
* Boot loader menu:
- Enabled the "Reboot" menu item unconditionally.
- Added "Save syslog from previous session" menu item to the debug menu.
Currently saving the syslog to FAT32 volumes is supported.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35882 a95241bf-73f2-0310-859d-f6bbb57e9c96
received, but if the signal was in the thread's signal block mask, it would
not be handled. Added thread::sig_temp_enabled, an additional mask of not
blocked signals, which is set by sigsuspend() and evaluated and reset by
handle_signals(). Fixes#5567.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35836 a95241bf-73f2-0310-859d-f6bbb57e9c96
* The kernel syslog ring buffer is no longer emptied by the syslog sender
thread. Instead we only drop the oldest data from the buffer when we're
writing to it and there's not enough free space in it.
Advantages: We drop old data rather than the most recent data when the buffer
is full. The "syslog" KDL command has more data available now. So the odds
are that kernel syslog messages not written to disk yet are at least still
in the kernel buffer.
* Changed dprintf_no_syslog() semantics: Now it writes to the syslog, but
doesn't notify the syslog sender thread.
boot loader:
* Added the ring_buffer implementation and a dummy user_memcpy().
* bios_x86: Moved the syslog stuff from serial.{cpp,h} to debug.{cpp.h}.
* Moved the debug options from the "Select safe mode options" menu to a new
"Select debug options" menu.
* Added option "Enable debug syslog" to the new menu (ATM available on x86
only). It allocates a 1 MB in-memory buffer for the syslog for this session
in such a way that it can be accessed by the boot loader after a reset.
* Added item "Display syslog from previous session" to the new menu, doing
what its name suggests.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35816 a95241bf-73f2-0310-859d-f6bbb57e9c96
a given flat buffer.
* Added ring_buffer_peek() for random position reading from the ring buffer
without changing its state.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35813 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Made the page table allocation more flexible. Got rid of sMaxVirtualAddress
and added new virtual_end address to the architecture specific kernel args.
* Increased the virtual space we reserve for the kernel to 16 MB. That
should suffice for quite a while. The previous 2 MB were too tight when
building the kernel with debug info.
* mmu_init(): The way we were translating the BIOS' extended memory map to
our physical ranges arrays was broken. Small gaps between usable memory
ranges would be ignored and instead marked allocated. This worked fine for
the boot loader and during the early kernel initialization, but after the
VM has been fully set up it frees all physical ranges that have not been
claimed otherwise. So those ranges could be entered into the free pages
list and would be used later. This could possibly cause all kinds of weird
problems, probably including ACPI issues. Now we add only the actually
usable ranges to our list.
Kernel:
* vm_page_init(): The pages of the ranges between the usable physical memory
ranges are now marked PAGE_STATE_UNUSED, the allocated ranges
PAGE_STATE_WIRED.
* unmap_and_free_physical_pages(): Don't free pages marked as unused.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35726 a95241bf-73f2-0310-859d-f6bbb57e9c96
happen on syscalls or "int" instructions. The debug exception handler sets
the thread debug flags B_THREAD_DEBUG_STOP and
B_THREAD_DEBUG_NOTIFY_SINGLE_STEP (new) and lets the thread continue. Before
leaving the kernel the thread is stopped and a single-step notification is
sent. Fixes#3487.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35620 a95241bf-73f2-0310-859d-f6bbb57e9c96
over ownership of the object. Fixes double free introduced in r35605.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35608 a95241bf-73f2-0310-859d-f6bbb57e9c96
they were never freed unless the cache was destroyed (I just wondered why
my system would bury >1G in the magazines).
* Made the magazine capacity variable per cache, ie. for larger objects, it's
not a good idea to have 64*CPU buffers lying around in the worst case.
* Furthermore, the create_object_cache_etc()/object_depot_init() now have
arguments for the magazine capacity as well as the maximum number of full
unused magazines.
* By default, you might want to initialize both to zero, as then some hopefully
usable defaults are computed. Otherwise (the only current example is the
vm_page_mapping cache) you can just put in the values you'd want there.
The page mapping cache uses larger values, as its objects are usually
allocated and deleted in larger chunks.
* Beware, though, I couldn't test these changes yet as Qemu didn't like to run
today. I'll test these changes on another machine now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35601 a95241bf-73f2-0310-859d-f6bbb57e9c96
