pipes in the shell, though the semantics is a little different: The
second command is invoked whenever the first command has written a
complete line. The line is passed as last argument to the second
command. The new command flag B_KDEBUG_PIPE_FINAL_RERUN causes the
second command to be invoked again (with NULL argument) after the
first command is done.
* Added kprintf_unfiltered() and kputs_unfiltered() which bypass the
pipe mechanism and directly print to the bluescreen/serial output.
* Moved most commands from debug.cpp to the new
debug_builtin_commands.cpp.
* B_KDEBUG_DONT_PARSE_ARGUMENTS commands don't get an argument anymore,
if it would consist of white space only.
* Added new debugger command return value B_KDEBUG_ERROR, which
indicates that executing the command failed. This return code will
abort a complete pipe.
* Since debugger commands can nest (i.e. one command can invoke another
one) the setjmp()/longjmp() mechanism to restore the stack after a
page fault in a command needs more than one jump buffer.
* Added abort_debugger_command(), which longjmp()s out of the currently
executed command. This will also abort the current pipe.
* When pagination is enabled pressing "a" will abort the running command
(as opposed to "q" which only disables the blue screen output, but
lets the command continue).
* Added debugger commands:
- "grep" which can be used to filter output by pattern. Removed the
"filter" command and the underlying mechanism that did that before.
- "head" which prints only the first lines of output of another
command.
- "wc" counts lines, words, and characters of another command's
output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25744 a95241bf-73f2-0310-859d-f6bbb57e9c96
as it seems devfs should not take over ownership. The device is deleted
in republish_driver for legacy drivers before the call to devfs_unpublish_device
that in turn deletes the vnode. This looks generally suspicious to me as
the device pointer the devfs vnode may still use gets invalid for a certain
amount of time (until the node is unpublished). So maybe the devfs should
take ownership of the device afterall and it shouldn't be deleted by the
device_manager/legacy driver functions. Axel please review.
* Do not try to delete the IOScheduler for now as creating one is disabled
currently too.
This fixes the crash on rescans of legacy drivers as seen when unplugging
USB devices.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25729 a95241bf-73f2-0310-859d-f6bbb57e9c96
Instead we only allow temporary caches to be merged. This remedies the
problem that after fork() + join() there remains a superfluous cache
layer for all RAM areas.
I haven't tested it, but this might improve the jam situation
memory-wise (huge heap is committed one less time), though it might
worsen it performance-wise (lots of heap pages are moved with every
merge).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25717 a95241bf-73f2-0310-859d-f6bbb57e9c96
new function merge_cache_with_only_consumer(), which is also used in
vm_cache_remove_area(), now.
* Added tracing for the merge case.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25716 a95241bf-73f2-0310-859d-f6bbb57e9c96
or busses/ide.
* This change makes the AHCI driver working again.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25705 a95241bf-73f2-0310-859d-f6bbb57e9c96
remains. This replaces the previous mechanism of switching the thread to
a dedicated death stack. We might consider moving more cleanup work to
the undertaker, but that seems a little more involved.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25704 a95241bf-73f2-0310-859d-f6bbb57e9c96
than a semaphore, and can already be used in the early boot process.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25689 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Adjusted code using recursive locks respectively. The initialization
cannot fail anymore, and it is possible to use recursive locks in the
early boot process (even uninitialized, if in BSS), which simplifies
things a little.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25687 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Use vm86 mode to call the VESA BIOS to do the actual mode switching by
providing an ioctl in the vesa driver.
* Fix vm86.h.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25680 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Current linking scheme does not always export arch specific symbols from the
kernel. Merging all compiled arch stuff into a single .o file (and linking
that to the kernel) fixes it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25679 a95241bf-73f2-0310-859d-f6bbb57e9c96
* List the sum of pages used by a cache tree in the line printed for the
root cache.
* Also print the amount of committed memory per cache (and the sum for
the tree), and allow sorting the list by it ("-c" switch).
* Added usage text.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25675 a95241bf-73f2-0310-859d-f6bbb57e9c96
#2265.
* Device::InitDevice()/UninitDevice() are called from outside of the device
manager, so they better lock it.
* Turned off debug output in devfs and the device manager.
* Fixed debug output in devfs to print the actual vnode/cookie values, instead
of the structures the VFS passes in now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25670 a95241bf-73f2-0310-859d-f6bbb57e9c96
all busses now. This should help with broken controllers that don't advertize
their capabilities correctly.
* Maybe we want to have a list that translates some types for certain devices,
too.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25667 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Moved devfs from fs/ to device_manager/, and separated the legacy driver
support from it.
* Removed fast_log module.
* There are a couple of (temporary) regressions, though:
- legacy SATA and ISA IDE support is disabled, the drivers haven't been
ported yet.
- The not yet used ATA bus manager hasn't been ported yet, either.
- AHCI changes have not been tested.
- the listdev command has been removed from the build (as it currently
doesn't work anymore).
- device manager generated IDs currently are not freed anymore when a device
node is removed.
- generic drivers can't yet use the new driver architecture.
- simple busses that do not support device types won't work yet.
- legacy driver publishing/unpublishing (ie. what USB needs) has not been
tested, and may be broken.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25662 a95241bf-73f2-0310-859d-f6bbb57e9c96
additional info (offset, size, used pages, areas), sorting the trees
by used pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25633 a95241bf-73f2-0310-859d-f6bbb57e9c96
function requesting the allocation.
* The "allocations" commands does also print the caller and can filter
by caller, now.
* Added new "allocations_per_caller" command, which sums up allocations
per caller and prints them in a table sorted by size or count.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25632 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_page_write_modified_pages(), save that it only writes pages in the
given range.
* Added vm_page_schedule_write_page_range() which schedules all modified
pages in the given cache's range for writing by the page writer.
* Added _kern_sync_memory() syscall and the msync() POSIX function.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25620 a95241bf-73f2-0310-859d-f6bbb57e9c96
and actually shows the sign (before, it would just absorb it).
* On calling floating() from vsnprintf(), the order of the "fieldWidth", and
"flags" parameters were mixed, causing some strange output.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25611 a95241bf-73f2-0310-859d-f6bbb57e9c96
* The new function vm86_do_int(struct vm86_state *state, uint8 vec) provides a
facility to call BIOS interupt handlers. The function must only be called from
a user thread context because the lower 1MB of the address space is used.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25610 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Add a "fault_callback" to the thread structure which is called when a
unhandled page fault happens in user space. A SIGSEGV will only be sent
if the callback returns "true".
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25609 a95241bf-73f2-0310-859d-f6bbb57e9c96
* For vm86 mode the kernel stack top is adjusted -> do not rely on the
kernel_stack_base + KERNEL_STACK_SIZE calculation.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25608 a95241bf-73f2-0310-859d-f6bbb57e9c96
* In vm86 mode CS will have arbitrary values so we check for both USER_CODE_SEG
and the VM flag in EFLAGS. This is also done when entering interrupt gates.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25607 a95241bf-73f2-0310-859d-f6bbb57e9c96
* The IO permission bitmap is always checked for virtual 8086 mode tasks.
Make sure it is invalid.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25605 a95241bf-73f2-0310-859d-f6bbb57e9c96
compatible with what our code assumed (pointers to objects of
TraceEntry and its POD base class trace_entry aren't identical
anymore).
* Added optional stack traces for ktrace_printf() output in the kernel.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25531 a95241bf-73f2-0310-859d-f6bbb57e9c96
Changed condition variables so that it is allowed to block (e.g. lock
mutexes etc.) between Add() and Wait(). This fixes#2059, since the
block writer used them this way and could thusly fail to wait for a
condition variable, causing a temporary stack object to be used past its
lifetime.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25525 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Use find_directory() for the hash for preloaded modules. I am not sure this
patch is needed, since it only concerns the hash. Please review.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25511 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed main.c to main.cpp
* Use find_directory() to construct the Bootscript path.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25509 a95241bf-73f2-0310-859d-f6bbb57e9c96
