if "syslog_debug_output" was set to "true". Reported by Jerome!
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16290 a95241bf-73f2-0310-859d-f6bbb57e9c96
the device manager is initialized. For x86 it does nothing, but
for PPC it searches for a supported interrupt controller and
remembers it for later use.
arch_int_{enable,disable}_io_interrupt() are implemented as
well as handling of external exceptions (aka as I/O interrupts).
We'll see later how well that works.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16271 a95241bf-73f2-0310-859d-f6bbb57e9c96
returns the root device node. Now its actually possible to
traverse the device node tree without a node to start with.
* Fixed execution order problem in dm_get_next_child_node(). The
supplied node was put first (which could cause its immediate
deletion), but was still accessed thereafter.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16268 a95241bf-73f2-0310-859d-f6bbb57e9c96
time of the idle thread as a measure, we now compute the CPU activity on
each thread switch - the time the CPU worked is the total of user and kernel
time a thread spent during its quantum.
Unlike before, this mechanism works correctly on SMP machines. I hope this
works as expected :)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16193 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added syscalls _kern_set_cpu_enabled() and _kern_cpu_enabled().
* scheduler.c::sRunQueue::tail was not maintained at all; changed sRunQueue to
be a simple thread pointer instead of a struct thread_queue.
* Turns out we're monitoring CPU activity incorrectly when we've got more
than one CPU.
* Renamed the global CPU array from "cpu" to gCPU.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16186 a95241bf-73f2-0310-859d-f6bbb57e9c96
synchronization as done in init_mtrrs() failed because of that (let the system
hang).
Unfortunately, MTRR still doesn't work on my dual PIII with SMP enabled; that
was just one reason it didn't work.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16173 a95241bf-73f2-0310-859d-f6bbb57e9c96
The test application lets run a thread at the highest priority that calls
yield all the time - the system stays responsible when it runs, so it seems
to work fine :)
Changed the malloc implementation to use _kern_thread_yield() instead of
snoozing.
We should think about making this call public, too.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16166 a95241bf-73f2-0310-859d-f6bbb57e9c96
enqueueing a thread to the run queue.
This mechanism is now used for the thread priority boost on semaphore
release. Also, those threads are no longer made real time threads, they
now get a temporary priority of B_FIRST_REAL_TIME_PRIORITY - 1.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16165 a95241bf-73f2-0310-859d-f6bbb57e9c96
It now works fine on my P4 system as well :-)
But since the BIOS area is not identity mapped, it might work on fewer systems
than it does in BeOS R5.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16154 a95241bf-73f2-0310-859d-f6bbb57e9c96
on at least one of my systems, it only works on 3 of them...).
* Added APM safemode setting.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16152 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added a thread priority column to the thread list.
* Added "realtime" command that lists all real-time threads.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16141 a95241bf-73f2-0310-859d-f6bbb57e9c96
* cached_block::parent_data can be NULL in a sub transaction in case the
block wasn't part of the parent transaction (but not in low memory
situations). cache_abort_sub_transaction() and cache_detach_sub_transaction()
didn't account for this, though, ie. the block data could end up
corrupted.
* Renamed cached_block::original in original_data.
* Renamed cached_block::data in current_data.
* Added some comments.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16108 a95241bf-73f2-0310-859d-f6bbb57e9c96
cache_abort_sub_transaction now doesn't crash if parent_cache is NULL (happens in low memory situations)
Axel, please review and fix if needed
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16105 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Moved the Open Firmware function platform_get_next_device() from
the boot loader into the kernel (renamed to of_get_next_device()).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16101 a95241bf-73f2-0310-859d-f6bbb57e9c96
* BEntry::Remove() now uses _kern_remove_dir() for directories.
* Added fd parameter to _kern_remove_dir().
* Fixed LibBeAdapter's _kern_unlink() to only work on files, and
added _kern_remove_dir() for directories.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16078 a95241bf-73f2-0310-859d-f6bbb57e9c96
* exchanged sBlueScreenEnabled and sBlueScreenOutput (so that they better
match the sSerialDebugEnabled and sSyslogDebugEnabled variables).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16077 a95241bf-73f2-0310-859d-f6bbb57e9c96
can now safely unmount volumes that are still in use by some applications.
Minor fixes to the FD disconnection implementation:
* put_fd() checked the condition for being able to disconnect a descriptor
incorrectly (causing the FD to never be disconnected).
* remove_fd() would hand out disconnected descriptors (but should have
returned NULL for them).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15952 a95241bf-73f2-0310-859d-f6bbb57e9c96
code. The stack pointer was not adjusted, hence we were
overwriting the previous register value. But it looks like I
missed to check in the arch_cpu.h with the iframe structure
including the floating point registers anyway.
* Backported the ELF PPC relocation code from the boot loader to
the kernel.
* Fixed the PPC version of arch_thread_switch_kstack_and_call().
Apparently the signature had changed, but the assembly
implementation was not adjusted accordingly.
* sc prints more registers now (LR, CR, CTR, XER,...).
* Fixed several occurences of not-working fault handlers.
Apparently the compiler realized, that the "error" label was
never jumped to (by the code it knew), and optimized the
respective code away. Now we use a trick to make it think the
error label might actually be jumped to. I wonder whether the
x86 version has the same problem when being compiled with GCC4.
* Adopted the x86 page fault handling interrupt code.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15933 a95241bf-73f2-0310-859d-f6bbb57e9c96
context switches and all FPU registers in an iframe. We might want
to rethink this, though.
The kernel initialization runs to the end now. No boot volume is
found yet, but that is expected.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15908 a95241bf-73f2-0310-859d-f6bbb57e9c96
too -- introduced a function ppc_kernel_thread_root() which calls the
three functions (entry, start, exit) in sequence. This brings us well
into the second part of the kernel initialization.
* Replaced stmw/lmw in ppc_context_switch() by individual stwu/lwzu
sequences. The former ones are documented to perform suboptimal on
some architecture implementations.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15904 a95241bf-73f2-0310-859d-f6bbb57e9c96
the previous implementation of arch_cpu_global_TLB_invalidate() back in
place (as fallback).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15902 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Cloned iframe stack management from x86.
* Reimplemented arch_thread_{get,set}_current_thread(). The
thread structure is stored in SPRG2. It is set to NULL in
arch_cpu_preboot_init(), now. A non-null current thread
causes all kinds of undesired behavior in early boot code.
* We establish the address space mappings we know from the
Open Firmware as areas. At least those in kernel address
space. The ones in userland address space are tougher.
Fortunately on my Mac mini there aren't any save the
boot_loader stack, which is not needed any longer anyway.
* Added stack trace support to the kernel debugger. Mostly
cloned and adjusted the x86 code. Some bits are still
missing, like stack traces for other threads.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15890 a95241bf-73f2-0310-859d-f6bbb57e9c96
* In reserve_boot_loader_ranges() we skip ranges that lie without
the kernel address space (we failed and panic()ed before). The
architecture specific code has to deal with those, if they are
of any importance.
* sAvailableMemoryLock.sem was not set to -1 in vm_init() so code
executed after semaphores were available but before the semaphore
was created caused semaphore 0 to be acquired.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15889 a95241bf-73f2-0310-859d-f6bbb57e9c96
void after turning off BAT for the segment containing itself.
The monster macro for the exception vector code was not really
elegant besides being too long for the 32 byte performance
monitor exception slot. Furthermore wasting three of the SPRG*
registers as cheap scratch memory wasn't that nice either.
We now have a three-step approach: The exception vectors
themselves contain only five instructions which branch to common
code at the beginning of the same physical page. That one sets
up BAT for itself, turns address translation back on and jumps
into the kernel. There we turn off BAT again, dump an iframe,
and enter the actual exception handler (/dispatcher). Upon return
the registers are restored from the iframe and we get back to the
place where the exception occurred.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15881 a95241bf-73f2-0310-859d-f6bbb57e9c96
The time base conversion factor is the 32 bit value
2^32 * 1000000 / time base frequency,
so the system time can be computed by
system time = time base * conversion factor / 2^32.
The expression in system_time() looks more complicated now, but is
actually much faster (factor 2.5 on my Mac mini). I'm positively
surprised, how good the assembly looks, that GCC 4 generates. There's
not that much potential for optimization by hand-coding the function.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15863 a95241bf-73f2-0310-859d-f6bbb57e9c96
and real_time_clock[_usecs]() finally seem to work (at least in
the kernel).
* Removed accidentially committed debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15861 a95241bf-73f2-0310-859d-f6bbb57e9c96
is actually not that nice for PPC since we don't have large pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15860 a95241bf-73f2-0310-859d-f6bbb57e9c96
parts, too. Fixed a potential overflow.
* The generic physical page mapper reserves the virtual address range
for the IO space now, so that noone can interfere until an area has
been created. The location of the IO space is no longer fixed; it
didn't look to me like it was necessary for x86, and we definitely
need to be flexible for PPC.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15855 a95241bf-73f2-0310-859d-f6bbb57e9c96
"IO space" out of the x86 specific source into arch/generic. We'll use
it for PPC as well.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15853 a95241bf-73f2-0310-859d-f6bbb57e9c96
device in the Open Firmware implementation of boot loader and
pass its path to the kernel, where it's opened and used for
getting/setting the real time. The expensive atomic_*64() on PPC
32-bit make things a bit more complicated. Moreover, missing
64 bit multiplication and division instructions won't really
allow system_time() to be anywhere near as fast as on x86. :-/
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15837 a95241bf-73f2-0310-859d-f6bbb57e9c96
substructure now (that's the only member actually). The system time
offset is therefore accessed via architecture specific accessor
functions.
Note, that this commit breaks the PPC build. Since I want to rename at
least one file I've already changed, I can't avoid that.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15835 a95241bf-73f2-0310-859d-f6bbb57e9c96
(year, month,...) representation out of the x86 specific code and put
respective support functions into real_time_clock.c. We'll need those
for the PPC specific part too.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15827 a95241bf-73f2-0310-859d-f6bbb57e9c96
Basically the architecture specific code is now responsible to
init and make use of the platform specific code, now. The reason
being that we have only one kernel per platform and thus cannot
decide at compile time, which platform to use (if any).
The PPC implementation features an abstract base class PPCPlatform
(implemented for all supported platforms) through which platform
support is provided.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15824 a95241bf-73f2-0310-859d-f6bbb57e9c96
bus, and time base frequency) in the PPC boot loader, and propagate
them to the kernel via kernel_args.
* Now we use the correct time base frequency for timer calculations.
* Implemented PPC specific system info stuff. Added a few PPC CPU
types to <OS.h>.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15817 a95241bf-73f2-0310-859d-f6bbb57e9c96
remapping stuff into separate functions and made them available to
others.
* Remap the exception handler space in arch_int_init_post_vm() into the
kernel address space (same issue as with the page table).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15783 a95241bf-73f2-0310-859d-f6bbb57e9c96
the fact that I couldn't find ptesync in an otherwise more complete
documentation I downloaded yesterday made me suspicious.
* arch_cpu_global_TLB_invalidate() uses tlbia now. The instruction is
optional, but so is tlbie (how I understood it is that both exist,
when the architecture implementation has a TLB). And the former loop
looked just scary.
* Implemented arch_cpu_user_TLB_invalidate(). It does just the same as
arch_cpu_global_TLB_invalidate().
* Some changes with respect to synchronization required on page table
and segment register updates.
* Some more minor renaming. Pulled a new function
remove_page_table_entry() out of unmap_tmap().
* In arch_vm_translation_map_init_post_area() we do now remap the page
table into the kernel address space, if it was without before. The
page table might actually be a good application for BAT, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15773 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed occurrences of ASID/asid to VSID/vsid where appropriate.
* vm_translation_map_arch_info::vsid_base is now the first usable
VSID and doesn't need to be shifted anymore.
* Changed the VSID base shift from 4 to 3, since we need only 8 VSIDs
per team.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15772 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Fixed several off-by-one comparisons with num_pages.
* vm_alloc_virtual_from_kernel_args() now makes sure the allocated
region lies within the kernel address space (or is at least
>= KERNEL_BASE).
* Simplified one or two patches.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15771 a95241bf-73f2-0310-859d-f6bbb57e9c96
fill_page_table_entry() by a ptesync(). Mapping the kernel heap
took about 2 minutes here before.
* Added missing shift of the asid_base in ppc_translation_map_change_asid().
* Commented out the BAT stuff in arch_vm_translation_map_init_post_area().
Besides that I think it won't work that way, it made the page table
unaccessible; though I'm not sure why.
* Added a bit of documentation to the beginning of the file. Should give
enough information to understand what happens here without further
detailed knowledge about the architecture.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15769 a95241bf-73f2-0310-859d-f6bbb57e9c96
{HAIKU,HOST,TARGET}_KERNEL_PIC_{CC,LINK}FLAGS which define the
compiler/linker flags specifying the kind of position independence
the kernel shall have. For x86 we had and still have -fno-pic, but the
PPC kernel has -fPIE (position independent executable) now, as we
need to relocate it.
* The boot loader relocates the kernel now. Mostly copied the relocation
code from the kernel ELF loader. Almost completely rewrote the PPC
specific relocation code, though. It's more correct and more complete now
(some things are still missing though).
* Added boot platform awareness to the kernel. Moved the generic
Open Firmware code (openfirmware.c/h) from the boot loader to the kernel.
* The kernel PPC serial debug output is sent to the console for the time
being.
* The PPC boot loader counts the CPUs now and allocates the kernel stacks
(made OF device iteration a bit more flexible on the way -- the search
can be restricted to subtree). Furthermore we really enter the kernel...
(Yay! :-) ... and crash in the first dprintf() (in the atomic_set()
called by acquire_spinlock()). kprintf() works, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15756 a95241bf-73f2-0310-859d-f6bbb57e9c96
as cached_block::data - which led to a crash as block_cache::FreeBlock() tried to
free both later.
Since neither cached_block::parent_data nor cached_block::original are supposed
to be != NULL in block_cache::FreeBlock(), they are no longer freed, but the system
panics if one of them is not NULL.
This should fix bug #77.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15749 a95241bf-73f2-0310-859d-f6bbb57e9c96
and thus, it could be used again which led to a crash.
Changed the free ranges list from a singly linked list to a doubly linked
list so that not all free ranges have to be searched for the one to be
freed anymore.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15696 a95241bf-73f2-0310-859d-f6bbb57e9c96
the modified bit set were written back (that's the case when they weren't put into
the modified pages queue yet), they were enqueued into the active queue twice, messing
up the page lists with various effects - this little thing took me busy for the last
few days :-/
* Improved the "page" debugger command: it now prints out much more info, and also lets
you lookup pages via physical address.
* The dump commands are now using kprintf() instead of dprintf().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15692 a95241bf-73f2-0310-859d-f6bbb57e9c96
arch_cpu_user_TLB_invalidate(). Empty at the moment; will have a look at
that later. The PPC kernel builds again, now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15685 a95241bf-73f2-0310-859d-f6bbb57e9c96
Must be further investigated (if the locks are created later or not...)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15643 a95241bf-73f2-0310-859d-f6bbb57e9c96
but it would have worked - and crashed soon after).
Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15642 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_cache_ref starts with a reference count of 1. When acquiring a vm_cache,
you no longer need to worry if that should go through the vm_store, or not;
as it now always does.
* map_backing_store() no longer needs to play with the vm_cache_ref
references.
* that simplified some code.
* vfs_get_vnode_cache() now grabs a reference to the cache, if successful.
* better balanced vnode ownership on vnode_store creation (vnode_store
released the vnode before if its creation failed).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15641 a95241bf-73f2-0310-859d-f6bbb57e9c96
to B_OS_NAME_LENGTH bytes, instead of 64. Also, it will now only consider
the leaf name for the area.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15640 a95241bf-73f2-0310-859d-f6bbb57e9c96
this saves 4 bytes per page. To compensate the loss of bytes, the offset is now
stored in page size units, that's enough to address 2^44 or 16 TB (which is now
the maximal supported file size!).
* Renamed vm_page::ppn to physical_page_number.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15637 a95241bf-73f2-0310-859d-f6bbb57e9c96
them apart (this even saves a pointer from vm_virtual_map to its address space)
* aspace -> address_space
* vm_create_address_space() did not check if creating the semaphore succeeded
* Removed team::kaspace - was not really needed (introduced a new vm_kernel_address_space()
function that doesn't grab a reference to the address space)
* Removed vm_address_space::name - it was just a copy of the team name, anyway,
and there is always only one address space per team
* Removed aspace_id - the address space is now using the team_id
* Some cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15609 a95241bf-73f2-0310-859d-f6bbb57e9c96
written the page, we now do it before, so that it cannot lose any changed data
anymore; it doesn't matter if the page is written to while writing it back, the
worst thing that can happen is that we write the same page twice. Also, we don't
rely on the PAGE_MODIFIED bit anymore, we now check all mappings of that page
to find all modified pages, no matter how far the (currently disabled) page
daemon had come.
Also, destroying an area will now result in writing back changed pages - this
is only really important for memory mapped files, though, and should probably
be avoided for other vm_store types.
Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15597 a95241bf-73f2-0310-859d-f6bbb57e9c96
service depends on it, it doesn't make any sense to call it that early in the
game.
* The VFS now has a low memory handler for vnodes as well. If there is enough
memory left, it won't free any vnodes anymore.
* Potential crashing bug fix: some functions did not check if the FD passed
in belonged to the right type; they just assumed it had a valid vnode, but
it could have had a mount structure associated as well.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15566 a95241bf-73f2-0310-859d-f6bbb57e9c96
* the link were not initialized in cached_block, as its constructor were never called
(was using malloc/free instead of new/delete).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15564 a95241bf-73f2-0310-859d-f6bbb57e9c96
When memory gets low, the blocks on that list are also freed - but right now,
that only happens when a block is put back (not directly on demand, ie. via
a low memory handler).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15552 a95241bf-73f2-0310-859d-f6bbb57e9c96
memory status.
Added new B_NO_LOW_MEMORY constant for the usual case.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15551 a95241bf-73f2-0310-859d-f6bbb57e9c96
kernel TLBs from being flushed on context switch.
* new arch_cpu_user_TLB_invalidate() that now does what arch_cpu_global_TLB_invalidate()
did before.
* arch_cpu_global_TLB_invalidate() will now flush all TLBs, even those from the
kernel.
* some cleanups.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15535 a95241bf-73f2-0310-859d-f6bbb57e9c96
has not yet been tested, though - I'll do this after this commit):
* Removed the arch_memory_type stuff from vm_area; since there are only 8 memory
ranges on x86, it's simply overkill. The MTRR code now remembers the area ID
and finds the MTRR that way (it could also iterate over the existing MTRRs).
* Introduced some post_modules() init functions.
* If the other x86 CPUs out there don't differ a lot, MTRR functionality might
be put back into the kernel.
* x86_write_msr() was broken, it wrote the 64 bit number with the 32 bit words
switched - it took me some time (and lots of #GPs) to figure that one out.
* Removed the macro read_ebp() and introduced a function x86_read_ebp()
(it's not really a time critical call).
* Followed the Intel docs on how to change MTRRs (symmetrically on all CPUs
with caches turned off).
* Asking for memory types will automatically change the requested length to
a power of two - note that BeOS seems to behave in the same, although that's
not really very clean.
* fixed MTRRs are ignored for now - we should make sure at least, though,
that they are identical on all CPUs (or turn them off, even though I'd
prefer the BIOS stuff to be uncacheable, which we don't enforce yet, though).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15528 a95241bf-73f2-0310-859d-f6bbb57e9c96
called before module_init(). Maybe it's even better to drop into the kernel
debugger.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15524 a95241bf-73f2-0310-859d-f6bbb57e9c96
However, it will never free those allocations again.
This fixes the problems due to Rudolf's recent driver updates.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15248 a95241bf-73f2-0310-859d-f6bbb57e9c96
Each component is built in the respective subdirectory now
and no longer in src/system/Jamfile.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15184 a95241bf-73f2-0310-859d-f6bbb57e9c96
sends a SIGSEGV signal (and lets the debugger handle the rest).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15145 a95241bf-73f2-0310-859d-f6bbb57e9c96
application got interrupted, thread_at_kernel_exit() was called - but
that expected interrupts to be enabled for signal handling.
However, only exceptions 3 (breakpoint) and 99 (syscall) are trap
gates, and thus, only those actually had interrupt enabled at that
point.
If a KILL signal was pending when a hardware interrupt interrupted a
user space thread you were entering KDL before ("acquire_sem() called
with interrupts turned off").
Thanks to mouse interrupts I finally got this often enough to find
this...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15143 a95241bf-73f2-0310-859d-f6bbb57e9c96
will no longer panic, but free its allocated pages.
I ran into this because BFS managed to create a file without data stream but
with a length larger than 0...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15093 a95241bf-73f2-0310-859d-f6bbb57e9c96
doesn't link against libsupc++ and still needs the symbol.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14972 a95241bf-73f2-0310-859d-f6bbb57e9c96
categories:
* Missing includes (like <stdlib.h> and <string.h>).
* Linking against $(TARGET_LIBSTDC++) instead of libstdc++.r4.so.
* Local variables shadowing parameters.
* Default parameters in function definitions (as opposed to function
declarations).
* All C++ stuff (nothrow, map, set, vector, min, max,...) must be imported
explicitly from the std:: namespace now.
* "new (sometype)[...]" must read "new sometype[...]", even if sometype is
something like "const char *".
* __FUNCTION__ is no longer a string literal (but a string expression), i.e.
'printf(__FUNCTION__ ": ...\n")' is invalid code.
* A type cast results in a non-lvalue. E.g. "(char *)buffer += bytes"
is an invalid expression.
* "friend class SomeClass" only works when SomeClass is known before.
Otherwise the an inner class with that name is considered as friend.
gcc 4 is much pickier about scopes.
* gcc 4 is generally stricter with respect to type conversions in C.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14878 a95241bf-73f2-0310-859d-f6bbb57e9c96
doesn't export the fs_access() function, it assumes access is granted.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14816 a95241bf-73f2-0310-859d-f6bbb57e9c96
The stack frame that got interrupted were missing from the stack output
(and thus the call that got us into the kernel).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14706 a95241bf-73f2-0310-859d-f6bbb57e9c96
in user images - right now, it only finds the image name and base address.
Fixed "images" debugger command - it actually acquired a mutex to dump the images...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14705 a95241bf-73f2-0310-859d-f6bbb57e9c96
to be able to follow the stack trace into userland.
No symbols there, yet, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14697 a95241bf-73f2-0310-859d-f6bbb57e9c96
to the parameters nor the number of parameters; the kernel is able to
get both without problems.
The syscall functions in libroot (_kern_*()) are now self-contained
(they don't "jmp" to separate code anymore), which at least
theoretically allows gdb to print a stack trace with the syscall
function on the top when a thread is currently performing a syscall.
Practically it doesn't work yet, though, since those functions are
frameless (i.e. create no stack frame) which needs special support
I haven't implemented yet.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14661 a95241bf-73f2-0310-859d-f6bbb57e9c96
* To always be on the safe side, thread_hit_debug_event() now checks
whether the thread is the debug nub thread.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14655 a95241bf-73f2-0310-859d-f6bbb57e9c96
moved it into the new command "teams". Now also lists the parent team.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14630 a95241bf-73f2-0310-859d-f6bbb57e9c96
threads listed by team ID. Also, the thread's team is now printed in the list as
well.
Minor cleanup (renamed "t" to "thread" where appropriate).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14629 a95241bf-73f2-0310-859d-f6bbb57e9c96
That also includes some XSI signals, SIGPOLL and SIGVTALRM, dunno if we will every support
those in a useful way.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14593 a95241bf-73f2-0310-859d-f6bbb57e9c96
* there is now a "Disable Hyper-Threading" safemode in the boot loader
* the SMP & HT menu items are now added in smp.cpp - and are only added
if the system supports one of them.
* more cleanup to smp_apic.h
* removed cpuid() from the boot loader's support.S - instead, it will now
use the one from the kernel.
* added a very weak HT detection: if the MP config only listed one CPU,
and this CPU supports HT, we enable the other logic processor manually -
as this currently doesn't work, it's disabled, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14536 a95241bf-73f2-0310-859d-f6bbb57e9c96
The "data_ptr" parameter is now only freed if you specify SMP_MSG_FLAG_FREE_ARG
when sending the ICI message.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14519 a95241bf-73f2-0310-859d-f6bbb57e9c96
Extracted scheduler_init() from start_scheduler() (which is now called scheduler_start()).
Moved scheduler related function prototypes from thread.h to the new scheduler.h.
Cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14518 a95241bf-73f2-0310-859d-f6bbb57e9c96
dead children time counters - not its own time.
Moved time calculation to team_remove_team().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14464 a95241bf-73f2-0310-859d-f6bbb57e9c96
having the thread lock held and interrupts disabled.
Cleaned up the signal handling code, and fixed some minor bugs with blockable
vs. non-blockable signals.
thread_debug_info was using uint64 for signals sets instead of sigset_t.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14457 a95241bf-73f2-0310-859d-f6bbb57e9c96
Under BeOS remove_vnode() is failing in this case, which looks like a good idea to imitate.
Also, pipefs/rootfs didn't handle that case - they even removed the entry before calling
remove_vnode() - they now behave correctly. And also BFS now returns the actual error code
received from remove_vnode() instead of B_ERROR.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14456 a95241bf-73f2-0310-859d-f6bbb57e9c96
about our block_io module not honouring the total length in read_pages().
Removed drops into the debugger when there is a block without an "original"
data buffer - that's completely normal and happens when someone asks for
a cleared block that is not yet in the cache.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14437 a95241bf-73f2-0310-859d-f6bbb57e9c96
get_next_loaded_module_name() no longer prints anything if tracing is enabled.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14436 a95241bf-73f2-0310-859d-f6bbb57e9c96
Added and implemented new functions cache_blocks_in_[sub_]transaction().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14431 a95241bf-73f2-0310-859d-f6bbb57e9c96
the read/write access was only correct for the first entry in the iovec.
These functions should be updated to use read_pages()/write_pages() where
possible, anyway - right now, they only save some kernel calls, while they
could be processed by the device at once.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14413 a95241bf-73f2-0310-859d-f6bbb57e9c96
tried to write from/read to the userland file descriptor instead of the one
of the kernel.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14412 a95241bf-73f2-0310-859d-f6bbb57e9c96
some heuristic: when you booted from a CD, CDs are preferred; else, volumes with
names like "Haiku" or "System" are preferred - if someone has better ideas, please
shout.
Note, this heuristic will only come into play if the boot loader was loaded from
an image (ie. floppy/CD/network), and you didn't choose any boot device.
Added evil methods to the Stack class that come in handy (you can now directly
access the array) for this.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14410 a95241bf-73f2-0310-859d-f6bbb57e9c96
and into its own file vfs_boot.cpp.
Added basic support for booting from CD - it doesn't give CDs a higher priority,
so you could end up booting from HD when you didn't explicetly select "CD-ROM"
in the boot loader. Eventually, it should only boot from HD in this case, if
booting from CD failed (because of a missing boot partition or whatever).
fs_mount(), _kern_mount(), and _user_mount() will now return the dev_t of the
mounted device, and not just B_OK. Maybe we should have fs_unmount() work on
a dev_t instead of a path as well...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14403 a95241bf-73f2-0310-859d-f6bbb57e9c96
boot message - unfortunately, it crashed when used this way until now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14399 a95241bf-73f2-0310-859d-f6bbb57e9c96
per file descriptor (a descriptor can be shared among several slots). There is now a
second table in the io_context structure that contains that information in a bitmap.
There are now two new (private) functions to control the close-on-exec flag, fd_close_on_exec(),
and fd_set_close_on_exec().
F_DUPFD, dup(), and dup2() are supposed to clear the close-on-exec flag on the duplicated
slot - this fixes bug #57 (no output after a redirect of a shell builtin).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14313 a95241bf-73f2-0310-859d-f6bbb57e9c96
removed it.
Added comment why there is an explicit dup2() at all.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14312 a95241bf-73f2-0310-859d-f6bbb57e9c96
It now also accepts a team ID and will then dump its io_context.
Accidently mixed used/max FD counter.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14310 a95241bf-73f2-0310-859d-f6bbb57e9c96
it will exit directly to have the same behaviour as in user space (where it doesn't
return to the caller, since signals are handled before returning to user space).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14309 a95241bf-73f2-0310-859d-f6bbb57e9c96
will no longer use vm_get_kernel_aspace() (which acquired a semaphore) and it now
accepts decimal team IDs as well.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14307 a95241bf-73f2-0310-859d-f6bbb57e9c96
and exec_team() have an additional "kernel" argument and will copy the arguments
themselves (or rather, delegate that to create_team_arg()).
When team_create_thread_start() is called, it will take over ownership and is
responsible for deleting it - this also fixed a memory leak in case the user
stack area couldn't be created.
Also changed comment after exit_thread(): since this call only delivers a signal, the
code after it will still get executed.
This fixes the crashing symptom of bug #50.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14303 a95241bf-73f2-0310-859d-f6bbb57e9c96
Some fields of fs_mount were not properly initialized when FS's mount function
was called, and therefore, could let get_mount() return a mount structure that
was not yet read for public consumption (this should fix bug #51).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14223 a95241bf-73f2-0310-859d-f6bbb57e9c96
(that's what our headers say).
Some style fixes in signal.c.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14192 a95241bf-73f2-0310-859d-f6bbb57e9c96
Instead of -1, vnode_path_to_vnode() now returns the ID of the starting vnode when it
doesn't need to traverse the path at all.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14081 a95241bf-73f2-0310-859d-f6bbb57e9c96
longer called - instead, it get its own mini page fault handler: if the thread
has a fault handler, that one will be executed.
Exiting the debugger (with the "continue" command) no longer causes the
vm_page_fault() routine to be called if interrupts were disabled.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14070 a95241bf-73f2-0310-859d-f6bbb57e9c96
the CPU value doesn't get lost when exiting a nested debugger.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14069 a95241bf-73f2-0310-859d-f6bbb57e9c96
and node_refs passed in) they returned an invalid index (larger than range).
Fixed rootfs compilation with tracing turned on.
Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14065 a95241bf-73f2-0310-859d-f6bbb57e9c96
