* Don't execute a command anymore, if the given prefix is ambiguous.
* Added tab completion for commands.
* Added on-the-fly help while typing a command line. It is triggered
by pressing tab at a position after the space following the command.
It is implemented by calling the command with argument "--help", which
doesn't work yet with most commands, but some already print their
usage in this case.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23521 a95241bf-73f2-0310-859d-f6bbb57e9c96
now, not the number of entries shown (much more usable this way).
* Added missing license.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23520 a95241bf-73f2-0310-859d-f6bbb57e9c96
though there was nothing to do (if 'diff' was larger than 'needed').
* Improved KDL command output.
* Added debug output to the allocation functions.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23491 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added function to allocate space in the buffer.
* Dump() now fills a buffer instead of printing its data directly.
* This allows the new "#pattern" argument of the "traced" command to
work. When you're using that, the index of the trace entry is printed
out, too, so that you can then get a full dump around the hits.
* Added an AddDump() method to the AbstractTraceEntry class so that
there is no need to call the inherited function anymore.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23479 a95241bf-73f2-0310-859d-f6bbb57e9c96
will not accept if the allocator returns NULL and crashes instead
(ie. not compiling in tracing would have crashed if some module tried
to use it).
* Added total entries count to the KDL command output.
* Fixed computing the start index of the KDL command.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23460 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Implemented an optional tracing layer that can be used in the kernel.
Nice to use if you don't have serial output or need something that doesn't
slow down the system as much.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23447 a95241bf-73f2-0310-859d-f6bbb57e9c96
23139 into trunk, with roughly the following changes (for details svn
log the branch):
* The int 99 syscall handler is now fully in assembly.
* Added a sysenter/sysexit handler and use it on Pentiums that support
it (via commpage).
* Got rid of i386_handle_trap(). A bit of functionality was moved into
the assembly handler which now uses a jump table to call C functions
handling the respective interrupt.
* Some optimizations to get user debugger support code out of the
interrupt handling path.
* Introduced a thread::flags fields which allows to skip handling of
rare events (signals, user debug enabling/disabling) on the
common interrupt handling path.
* Got rid of the explicit iframe stack. The iframes can still be
retrieved by iterating through the stack frames.
* Made the commpage an architecture independent feature. It's used for
the real time data stuff (instead of creating a separate area).
* The x86 CPU modules can now provide processor optimized versions for
common functions (currently memcpy() only). They are used in the
kernel and are provided to the userland via commpage entries.
* Introduced build system feature allowing easy use of C structure
member offsets in assembly code.
Changes after merging:
* Fixed merge conflict in src/system/kernel/arch/x86/arch_debug.cpp
(caused by refactoring and introduction of "call" debugger command).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23370 a95241bf-73f2-0310-859d-f6bbb57e9c96
passes that information on to the kernel. This should fix wrong bytes per row with
certain resolutions and graphics cards.
* The boot loader now recognizes 15 bit modes that are advertised as 16 bit modes.
This should fix wrong colors in 16 bit modes on some cards.
* Reenabled setting MTRR for VESA mode - don't remember why I disabled it, but it
works fine on my test machines.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23006 a95241bf-73f2-0310-859d-f6bbb57e9c96
serial output, and puts it into the new kernel_args::debug_output field.
* syslog_init() will now check if there is anything in kernel_args::debug_output
and will put that into the syslog buffer.
* dump_block() now also prints an offset.
* Fixed warning in mmu.cpp.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23003 a95241bf-73f2-0310-859d-f6bbb57e9c96
the blue screen was initialized - blue_screen_enter() now returns wether
or not it has been initialized already (there will only be serial output
in that case).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22491 a95241bf-73f2-0310-859d-f6bbb57e9c96
dprintf() with the exception that it doesn't write anything to the
syslog. The reason is that syslog_write() releases a semaphore and can
therefore not be invoked when the thread spinlock is held.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22428 a95241bf-73f2-0310-859d-f6bbb57e9c96
to the private VM types are including vm_types.h now.
* Removed vm_page, vm_area, vm_cache, and vm_address_space typedefs; it's
cleaner this way, and the actual types are only used in C++ files now,
anyway.
* And that caused changes in many files...
* Made commpage.h self-containing.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22329 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
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
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
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
{set,clear}_debugger_{break,watch}point(), allowing to set/clear break
and watchpoints for the calling team. When a break/watchpoint is hit,
the team enters the debugger. Handy in situations when the program in
question can't really be started in a debugger (or it would be
complicated to do so). The functions work only as long as no debugger is
installed for the team.
We clear the arch specific team and thread debug infos now, when a new
debugger is installed, thus clearing break- and watchpoints.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20396 a95241bf-73f2-0310-859d-f6bbb57e9c96
- add loading of kernel debugger/ modules
- add a kgets() exported func for use by nasty modules =)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17657 a95241bf-73f2-0310-859d-f6bbb57e9c96
action has been set for the signal. If so, it doesn't try to install a
debugger, but simply lets the caller deliver the signal.
Fixes bug #237 (VLC entering the debugger when checking for processor
extensions).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16556 a95241bf-73f2-0310-859d-f6bbb57e9c96
This should eliminate the cases where commands doesn't seem to be accepted (but look fine on screen).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16453 a95241bf-73f2-0310-859d-f6bbb57e9c96
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
* 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
{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
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
* 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
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
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
even if "kernel_startup" was "true". Page faults are now no longer allowed
during kernel startup (and could be easily avoided). The only situation where
we accept page faults with interrupts turned off now is during a kernel debugger
session.
Added a command debug_debugger_running() to test for that situation.
kernel_debugger() no longer sets kernel_startup while it's running; there should
be no situation when this could be helpful.
Interrupts are no longer enabled when a page fault happens in the kernel
debugger.
This potentially fixes all sorts of problems, and not only in the kernel debugger,
it could also have affected SMP (will test later).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14045 a95241bf-73f2-0310-859d-f6bbb57e9c96
available.
Broken escape sequences are now properly ignored (read one character too much before).
Since the current line buffer is part of the history, we now delete that buffer when
crossing the current line again while traversing the history (restoring the former
buffer would be the nicest way, but that would require another empty buffer and more
copying).
Cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14005 a95241bf-73f2-0310-859d-f6bbb57e9c96
(dprintf() locks using acquire_spinlock() which can itself drop into the
kernel debugger, causing an endless loop (until the stack was full).
Removed debug_putchar().
The gdb interface is now calling arch_debug_serial_*() directly.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13882 a95241bf-73f2-0310-859d-f6bbb57e9c96
need to transfer the ownership, when handing over the team to another
debugger.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13696 a95241bf-73f2-0310-859d-f6bbb57e9c96
is sent to a debugger when the debugged team has been successfully handed
over to another debugger.
* Fixed handling of B_DEBUG_MESSAGE_PREPARE_HANDOVER. We don't send a reply.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13683 a95241bf-73f2-0310-859d-f6bbb57e9c96
lines would be left untouched instead of cleared before use.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13375 a95241bf-73f2-0310-859d-f6bbb57e9c96
This helps to reduce the flood of commands for those blue screen "users" :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13018 a95241bf-73f2-0310-859d-f6bbb57e9c96
called by debug_init_post_vm().
Since the availability of a blue screen specific getchar() is static anyway, there
is no need for the sBlueScreenGetChar variable (only the message "only serial input
available" gets lost, but since that is platform specific anyway...).
Hello blue screen! We now have an on-screen KDL, to be enabled by the kernel
setting "bluescreen", just like on BeOS.
The blue screen does not yet support any cursor actions or backspace, though (need
to grab some stuff from our console driver).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12896 a95241bf-73f2-0310-859d-f6bbb57e9c96
kernel_debugger() didn't do enough before; panic() did all the work - but
since the former is a public function as well, I moved all the functionality
to it. Also fixed a possible buffer overrun in panic().
Renamed dbg_* to debug_*.
"serial_debug_port" setting did not ignore negative values.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12889 a95241bf-73f2-0310-859d-f6bbb57e9c96
If anything is still broken (and was not before :)), please shout.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12361 a95241bf-73f2-0310-859d-f6bbb57e9c96
