Commit Graph

1064 Commits

Author SHA1 Message Date
Ingo Weinhold
74652349dd * sEntries only counts the "normal" (i.e. non-buffer) entries, now.
* "traced" command:
  - Was printing one more entry than asked to.
  - Fixed broken index handling. They were starting at 0, but the last
    one was sEntries nevertheless. We consistently let them start at 1,
    now. 0 can be passed as special index, causing the last entries to
    be printed.
  - Added options "backward"/"forward" which will print the entries
    preceding respectively succeeding the ones printed on the previous
    invocation. The command is continuable in this case, i.e. simply
    pressing RET afterwards will reinvoke the command, allowing for
    comfortable scrolling through a long list of entries.
  - Added detailed usage message.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23607 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-18 15:32:02 +00:00
Ingo Weinhold
548dcc600e * syscalls.c -> syscalls.cpp
* With post syscall debugging enabled, the x86 syscall handling didn't
  remove all parameters from the stack after calling the respective user
  debugger hook. Should have been harmless though, since the following
  code didn't rely on the stack being in order.
* Added syscall pre/post (kernel) tracing functions
  trace_{pre,post}_syscall(). They are generic, but need to be invoked
  by the architecture specific syscall code. Currently only done for
  x86.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23600 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-18 02:13:27 +00:00
Ingo Weinhold
21c92a08d4 * Don't invoke the TraceEntry destructor for simple buffer entries,
since that's seriously unhealthy.
* Added TODO that uninitialized entries must not be discarded.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23599 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-18 02:04:04 +00:00
Ingo Weinhold
21e73322d8 Also trace set_job_control_entry() and wait_for_child().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23597 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-18 00:01:32 +00:00
Ingo Weinhold
bd0689e668 Added usage message to "cvar" and "cvars" debugger commands and define
temporary variables.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23596 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 23:22:29 +00:00
Ingo Weinhold
5aee691ed8 The "sem" and "port" debugger commands set some temporary variables,
now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23595 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 23:07:59 +00:00
Ingo Weinhold
19b468ea24 * Cursor up/down stop before empty (i.e. unused) history lines, now.
* Added support for page up/down (works like in bash).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23588 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 15:29:27 +00:00
Ingo Weinhold
20fb39b662 Translate PAGE UP and PAGE DOWN keys to respective escape sequences.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23587 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 15:27:40 +00:00
Ingo Weinhold
ce637fda24 Added usage (respectively more detailed usage) messages for "sem",
"sems", "port", and "ports" debugger commands.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23586 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 14:40:07 +00:00
Ingo Weinhold
224aee3ffc sem.c -> sem.cpp, port.c -> port.cpp
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23585 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 14:04:06 +00:00
Ingo Weinhold
e6a8dfa805 The usage string directly printed by print_debugger_command() and
invoke_debugger_command() is now automatically preceded by
"usage: <command name>", so the string passed to
add_debugger_command_etc() shouldn't contain it anymore. 


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23584 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 13:58:17 +00:00
Axel Dörfler
53f7979709 * Fixed a deadlock (and resolved TODO): we need to make all pages unbusy again
before releasing our cache reference. Otherwise removing a vnode (triggered
  by releasing the cache in our thread) could need pages we still own.
* Put the caches and pages into a union to save stack space; they are not
  needed at the same time.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23580 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 08:21:48 +00:00
Axel Dörfler
06958f901c We generally handle NULL pointers in free() and friends gracefully.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23578 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 08:06:54 +00:00
Ingo Weinhold
72fa2c51eb Added tracing for fork() and exec().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23577 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 01:59:17 +00:00
Ingo Weinhold
0b60583fec Added convenience functions alloc_tracing_buffer_{memcpy,strcpy}().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23576 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 01:58:08 +00:00
Ingo Weinhold
e613499224 Gracefully ignore NULL pointers passed to block_cache::Free(). Fixes
panic when sync'ing.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23575 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 00:14:09 +00:00
Ingo Weinhold
c21af3b299 Print the missing object.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23574 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 00:11:26 +00:00
Ingo Weinhold
8a90d12e26 * Added add_debugger_command_etc() which is similar to
add_debugger_command(), but additionally takes parameters "usage"
  and "flags".
* Added add_debugger_command_alias() which creates another name for an
  existing command.
* Added print_debugger_command_usage() to print a command's usage.
* invoke_debugger_command() intercepts invocations with "--help" and
  prints the command's usage text, if it is known. If unknown, the
  command will be called normally.
* Made use of the new functions in debug.cpp.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23573 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 23:41:20 +00:00
Ingo Weinhold
1839792524 Change parse_expression() return value from uint32 to uint64.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23571 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 22:55:39 +00:00
Axel Dörfler
33965e022a Enabled paging for the boot debug output as well.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23570 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 22:09:02 +00:00
Ingo Weinhold
06f78e9fb7 * Changed the way temporary variables work. They won't be unset before
a command is executed anymore. Instead the least recently used
  temporary variable is overwritten, if there's no free slot for a new
  temporary variable.
* Removed the special handling for the command result variable ("_"). It
  just works like any other temporary variable, now.
* Individual temporary variables can be removed (e.g. using the "unset"
  command).
* Added unset_all_debug_variables() and "unset_all" command to unset
  all persistent and temporary variables.
* Removed remove_all_temporary_debug_variables and renamed
  remove_debug_variable() to unset_debug_variable().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23568 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 21:50:59 +00:00
Axel Dörfler
a96e7cce98 * Replaced my block allocator code in favour of Hugo's slab allocator
(so we can't allocate more physical pages than virtual address space
  anymore, but so what?).
* Used the new CACHE_LARGE_SLAB flag as a temporary work-around; else
  the slab would easily create several thousands of areas, which our
  area code (and kernel heap) can't really handle that well (gets 
  awfully slow).
* Block caches with the same size could share the same slab, but we
  don't do that yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23567 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 20:43:12 +00:00
Axel Dörfler
855ab2b312 * Based on ahwayakchih's blue screen paging code (see bug #1444), I added
paging support to KDL (but not the on-screen debug output for now).
* Defaults to "on", use the new "paging" KDL command to turn it off (or on
  again).
* When pressing 'q' while it is waiting for a key, it will now eat the rest
  of the commands output (helpful for slow screen output of a large data set).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23566 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 20:39:00 +00:00
Axel Dörfler
b9074efcb7 * Fixed the "vnodes" KDL command when called without any arguments.
* Fixed the usage text of the "help" KDL command.
* Made the "ambiguous command" warning shorter, so that it will still fit in
  the exception buffer.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23565 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 20:36:27 +00:00
Axel Dörfler
c6ee79ce38 * vm_create_anonymous_area() now accepts B_ANY_KERNEL_BLOCK_ADDRESS.
* As a temporary work-around for the current slab allocator's area usage,
  I added the CACHE_LARGE_SLAB flag, which will force the allocator to 
  use larger areas.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23564 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 20:30:16 +00:00
Axel Dörfler
abf34addc5 * B_ANY_KERNEL_BLOCK_ADDRESS now aligns the memory on the next power of two
value greater or equal its size (actually untested, but at least Haiku
  still boots with these changes :-)).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23563 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 19:09:01 +00:00
Axel Dörfler
dd80f32ac3 * Added support for the "--help" argument for all VFS debugger commands.
* Added some temporary variables to the commands.
* Use parse_expression() where appropriate.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23556 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 09:21:54 +00:00
Axel Dörfler
fd81fd526a * Fixed the "unset" command and added useful error output (faulted before).
* Fixed removing temporary variables (they would always be removed except one
  after the first command).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23555 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 08:59:58 +00:00
Ingo Weinhold
5c62817c6f Added unary "*" operator for dereferencing addresses to the
debugger expression language. By default it reads a uint32 value.
Another target size (1, 2, 4, or 8 bytes) can be specified in braces
after the "*" (e.g. "*{2}address" for uint16).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23551 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 03:55:19 +00:00
Ingo Weinhold
15f1e19781 * Added support for the "--help" argument to some debugger commands.
* The kernel debugger does now define some temporary variables when
  entered (current thread and team, etc.).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23549 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 01:14:40 +00:00
Ingo Weinhold
3b4fa1664e * Implemented parse_expression(). The back-end is an expression parser
that is a little more powerful than BeOS'. It features:
  - Persistent and temporary uint64 variables. The former kind is set
    only by the user. The latter (those prefixed "_") can be set
    automatically by commands, thus e.g. making it easier to access
    members of a dumped structure. They are unset when the next command
    is invoked. The special temporary variable "_" is defined as a
    command's return value.
  - Expressions can contain nested command invocations using brackets
    ("[ ... ]").
  - Command lines are parsed by the expression parser, too. They can
    contain command invocations (in brackets) and expressions (in
    parentheses).
* Added debugger commands:
  - expr: Evaluates the given expression and prints the result.
  - unset: Undefines a variable.
  - vars: Prints the values of all defined variables.
* Moved debugger command code into its own source file.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23546 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-16 00:01:20 +00:00
Axel Dörfler
8264ebf6b7 * Improved block allocation.
* Made the block_cache KDL command dump a bit more useful info (number of
  referenced and dirty blocks).
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23540 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-15 18:03:33 +00:00
Axel Dörfler
c87ef6db88 Made Haiku behave better when you have more memory:
* with 1 GB or more, the semaphore limit is now 131072 instead of 65536.
* double the heap when there is 1 GB or more (64 MB).
* the low memory handler now also watches semaphore usage; in the end,
  we need a low resource handler, not a low memory handler.
* create_sem_etc() no longer calls vfs_free_unused_vnodes() directly as
  this could actually deadlock (at least because the address space is a
  R/W lock, not a recursive lock).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23538 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-15 16:47:26 +00:00
Axel Dörfler
36a3ef573d * "traced" now always prints the index numbers (before, it only did that
when a pattern was involved).
* alloc_tracing_buffer() no longer allocates anything when you ask for
  a zero byte buffer.
* Fixed warning.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23533 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-15 15:06:15 +00:00
Axel Dörfler
502c464081 * Added tracing support for transactions.
* improved the "block_cache" KDL command: it can now also dump blocks,
  added support for the "--help" argument.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23532 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-15 15:04:31 +00:00
Ingo Weinhold
07b8a5de22 * Sort the registered commands by name when entering KDL.
* 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
2008-01-14 15:39:44 +00:00
Axel Dörfler
2d81f04529 * If the "traced" KDL command is used with only one argument, it's the index
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
2008-01-14 14:04:35 +00:00
Ingo Weinhold
ea144d4b8b Use C linkage for kgets(). Should fix hangman.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23517 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-14 13:08:43 +00:00
Ingo Weinhold
945a060042 Added "message" debugger command to reprint the message printed when
entering KDL.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23516 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-14 13:04:13 +00:00
Ingo Weinhold
46a15bd6ea Added support for line editing in KDL.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23514 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-14 12:48:13 +00:00
Ingo Weinhold
b34ddf8422 * Fixed incorrect key code for DELETE. Ctrl-Alt-Del will reset the
system when pressed during the boot process, as intended.
* Removed other incorrect key codes, except the one for BREAK, since it
  is used (but won't work).
* Ctrl-Alt-Del now also resets the machine when in KDL, at least when
  waiting for user input.
* arch_debug_blue_screen_getchar() does also generate the respective
  escape sequences for HOME, END, and DELETE, now. Furthermore it
  generates characters for Ctrl-A through Ctrl-Z.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23512 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-14 12:44:14 +00:00
Ingo Weinhold
9d2cde7183 debug.c -> debug.cpp
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23511 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-14 09:50:32 +00:00
Michael Lotz
bece4ef7ab Implemented driver unloading. When a driver is rescaned and doesn't publish
any devices anymore it gets unloaded. Also made sure the function pointers
are properly initialized and disabled debug output.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23494 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-13 18:49:39 +00:00
Axel Dörfler
4fc4f2c8ae * Added a transaction listener mechanism to be notified when a
transaction ends or has been aborted.
* BFS now listens for transactions when it created an inode to see if 
  the transaction will be aborted without freeing the inode (in which 
  case it will panic for now).
* Started implementing tracing support, but it's not working yet.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23492 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-13 17:18:29 +00:00
Axel Dörfler
5276dad057 * Fixed a bug in make_space() that would endlessly skip entries, even
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
2008-01-13 17:09:01 +00:00
Axel Dörfler
8e43ece8b8 Some more work on the tracing API:
* 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
2008-01-13 02:50:32 +00:00
Axel Dörfler
2eceeabaea Fix comment.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23466 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-13 00:27:05 +00:00
Axel Dörfler
416458e9c4 * Added nothrow to the new operator because otherwise the C++ compiler
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
2008-01-12 23:55:53 +00:00
Ithamar R. Adema
0fc976d900 Fix problem with CLOEXEC also being handled on fork(). For details on expected (BeOS) behaviour, see http://www.freelists.org/archives/openbeos/12-2001/msg00280.html
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23456 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-12 23:48:52 +00:00
Axel Dörfler
f3ecf93d37 Added the cookie/private_node fields to the mounts/vnodes list in KDL.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23455 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-12 23:45:11 +00:00
Axel Dörfler
a825cef64b Added TODO comment about a possible deadlock Marcus just found :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23450 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-12 22:49:03 +00:00
Axel Dörfler
aa5d2a2df2 bonefish+axeld:
* 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
2008-01-12 18:41:35 +00:00
Michael Lotz
84c69b0078 Remove unnecessary remove_vnode() in devfs_unpublish_device() done already in unpublish_node()
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23446 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-12 17:38:56 +00:00
Axel Dörfler
a52c1759ac Fixed two bugs in the vnode disconnecting code found by bonefish+mmlr:
* vfs_disconnect_vnode() did not put away its vnode reference.
* disconnect_mount_or_vnode_fds() did always throw the current working
  directory of all apps on the same mount away, even if only a specific
  vnode should have been disconnected.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23445 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-12 17:36:10 +00:00
Michael Lotz
1d99d469a0 * Properly implement rescan in devfs (rescan when closed and republish when open)
* Cache the looked up image symbols as well as the API version in the driver entry

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23441 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-12 16:05:17 +00:00
François Revol
f293c7cb52 Hi Ingo, I'm not the only one to break the build today :))
gcc4 fix.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23397 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-11 14:01:19 +00:00
Ingo Weinhold
34b3b26b3b Merged branch haiku/branches/developer/bonefish/optimization revision
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
2008-01-11 00:36:44 +00:00
François Revol
bf2b4e7811 * Missing write_8()
* Fixes


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23348 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-10 16:48:16 +00:00
François Revol
ee189af07d Should be enough for an m68k elf loader. hopefully I didn't screw up.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23347 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-10 16:42:38 +00:00
Axel Dörfler
3e5b9076f9 * Fixed (or rather, worked around) a deadlock in the VM: when a file was
resized but still had dirty pages to be written back, 
  vm_cache_resize() (which is called with the inode lock being held)
  deadlocked with the page writer.
* Now, I reintroduced busy_writing: it'll be set by everything that
  writes back pages (vm_page_write_modified(), and the page writer),
  and will be checked for in vm_cache_resize() - other functions are not
  affected for now, AFAICT.
* vm_cache_resize() will clear that flag, and the writer will check it
  again after it wrote back the page (which will fail when it's outside
  the file bounds), and if it's cleared, it will get rid of the page
  (if the file has been resized again in the mean time, writing it will
  succeed then, and we'll keep the page around).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23334 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-09 22:25:21 +00:00
Axel Dörfler
34dafb6352 Minor refactoring.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23319 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-09 18:39:42 +00:00
Axel Dörfler
bcb71f00e8 * My last change to vm_page.cpp made an existing bug much more likely to
appear: when freeing a modified page, it wouldn't have a cache
  anymore, but set_page_state_nolock() depended on it.
* To work around this, I added a vm_page_free() function, which the
  caches that free modified pages have to call (but others may, too).
  It will correctly maintain the sModifiedTemporaryPages counter in case
  the cache has already been removed.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23318 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-09 18:15:28 +00:00
Axel Dörfler
f4748003ed * Added a KDL function "call" that can show the arguments together with
a function in the stack trace (only works reliably when a stack frame
  is exists, and you'll have to know the number of arguments).
* Refactored the functions a bit and extracted setup_for_thread() out
  of stack_trace() to be used by show_call() as well.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23316 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-09 18:08:15 +00:00
Axel Dörfler
3d2595d16a The modified temporary page counter could go out of sync pretty easily.
This could cause the page writer to run endlessly.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23309 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-09 14:56:50 +00:00
Axel Dörfler
4063db92d0 * elf_resolve_symbol() no longer copies the symbol name if symbolPrepend is
NULL (it's not used anywhere yet, anyway).
* Fixed warning when compiling with tracing turned on.
* Some cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23267 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-06 14:54:57 +00:00
Axel Dörfler
4accd841c7 * Fixed a big bug in common_file_io_vec_pages(): vecOffset was not correctly
set when the first chunk of the file could be read in directly, causing it
  to read data to a wrong place in the buffer.
* Reading in the first chunk directly would have also only worked if vecIndex
  and vecOffset was 0 when calling the function.
* Applied the fs_shell changes in file_map to the kernel version as well (the
  constructor already worked correctly, though).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23265 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-06 14:04:15 +00:00
Axel Dörfler
a0b6b9b9e6 Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23241 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-04 16:59:30 +00:00
Axel Dörfler
aad0d344f0 The slab areas shouldn't be user readable...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23231 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-03 10:33:03 +00:00
Marcus Overhagen
971cf1881e Disable an io interrupt when more than 99% are unhandled. This somewhat prevents random freezing.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23219 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-02 17:33:27 +00:00
François Revol
6d719ee64c WIP; Implemented most of vm stuff.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23190 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-29 14:47:25 +00:00
François Revol
24ec4307f3 Moved the guts to a header.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23189 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-29 14:46:01 +00:00
Marcus Overhagen
518772739f dump all found devices and partitions to serial debug output
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23161 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-26 15:25:05 +00:00
Marcus Overhagen
4b4e08cc67 added more debug output
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23155 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-25 14:52:49 +00:00
Michael Lotz
b938008fe1 * Update the PAUSE macro from "rep; nop;" to "pause;" which is the same bytecode wise but more readable
* Insert the pause op in all spin wait loops (as macro for platform independent sources or as inline assembly on x86 only files)
* Fix some warnings with tracing on and extended some output
* Minor cleanups here and there

The pause instruction is implemented since P4 systems but is fully backwards compatible (it's a no-op prior to P4). According to Intel specs it reduces performance penalties as memory order violations can be avoided. Also power consumption is reduced. Most of all this will be beneficial to hyper-threading systems as it frees resources to the other logical processor when one logical processor executes a fast spinning loop.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23141 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-18 19:46:26 +00:00
Michael Lotz
7ce6a420b7 Make the initial size of the slab depend on the CPU count. This avoids running out of initial space with more than two CPUs. I haven't fully tracked down the usage of this space, probably it is used to allocate some per CPU construct.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23115 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-11 21:54:54 +00:00
Axel Dörfler
9abdc42489 If there are more than 4 MB dirty cache pages, the page writer won't stop anymore
writing back pages when there is enough free memory.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23086 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-08 20:32:04 +00:00
Michael Lotz
dfa4dfe033 Something else that has been laying around for some time. Implemented hash_grow() that can grow a hash table to a new table size. Automatic growing is commented out in hash_insert() since there needs to be a way to disallow growing in certain cases (i.e. where no allocations can be made). This is detailed in the ToDo at the top of the file.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23074 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-06 21:58:06 +00:00
Michael Lotz
849e3c6724 First try at implementing driver rescans (this has been laying around my disk for quite some time).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23072 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-06 21:36:15 +00:00
Axel Dörfler
4afaeabbd8 * bfs_free_cookie() accidently reverted a transaction after having updated
the inode's internal last modified and size copies, causing in inconsistent
  data. This fixes #1643.
* The block being replayed are now dumped to the debug output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23050 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-02 16:38:38 +00:00
Axel Dörfler
4dc1122b30 The "ints" KDL command now also dumps the handlers associated to a vector.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23037 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-12-01 12:01:11 +00:00
Axel Dörfler
6244441ad4 * Made the debugger command "team_images" a bit more useful: it now accepts a
team ID argument, instead of only being able to dump the images of the current
  team.
* The debugger commands are now now also built-in without the DEBUG flag set
  (for now).
* _get_next_image_info() now also supports the B_SYSTEM_TEAM constant.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23011 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-28 11:56:06 +00:00
Ingo Weinhold
92ab20b3a4 Added a list of death_entry's to the teams structure. It stores the
exit status of (non-main) threads of a team. Fixes bug #1644.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23009 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-28 00:07:32 +00:00
Axel Dörfler
5845b6ecc5 * The boot loader now remembers the bytes per row as told by the graphics card, and
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
2007-11-27 16:33:19 +00:00
Axel Dörfler
3ae3b04bce * The boot loader (bios_ia32 only) now duplicates everything that goes to the
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
2007-11-27 12:59:34 +00:00
Axel Dörfler
9ff70e7468 read_from_file() and write_to_file() did not take the pageOffset into account.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22998 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-26 13:38:32 +00:00
Axel Dörfler
d4fc2b7db7 * Fixed a bug reported by Ryan: the stack_end pointer of a thread was reported
one too low in comparison with BeOS (ie. the end pointer was inclusive, now
  it's exclusive).
* Moved static functions fill_thread_info(), and {send|receive}_data_etc() to
  the private function section.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22945 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-18 11:59:53 +00:00
Axel Dörfler
79939c8d1e The KDL command "teams" now also prints the team ID in decimal rather than hex.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22944 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-18 11:57:35 +00:00
Axel Dörfler
fb431b443b * vfs_unmount() can now safely be called from the kernel (fs_unmount() still
tried to access the uninitialized vnode in that case).
* That means that it's now safe to remove a mounted CD from the drive, it
  will then be unmounted automatically.
* Added a check for partition::Device() - even though Ingo tells me it's
  impossible, it was NULL once.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22922 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-13 15:19:21 +00:00
Axel Dörfler
64a19b4444 Philippe was right, of course, the media checker thread did not bother to
check the fTerminating flag, so it would never quit (too bad no one ever quits
it anyway :-)). Thanks for proofreading!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22919 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-13 12:20:39 +00:00
Axel Dörfler
7333992516 On a media change, the KDiskDevice must do a bit more than it did:
* it now updates the partition data,
* the flags,
* and the disk geometry - and that now allows the session add-on to actually
  detect a newly inserted CD.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22918 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-13 12:18:06 +00:00
Axel Dörfler
ddd1769901 The file map code isn't that smart yet...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22916 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-13 11:20:17 +00:00
Axel Dörfler
4a31d30e84 * The file map needs to know the actual file size to be able to know if it has
the complete extent info or not.
* file_map_translate() now cuts down the request to the file bounds.
* Adjusted BFS and FAT to the API changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22913 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-13 10:34:48 +00:00
Axel Dörfler
88ef411154 * Added an UninitializeMedia() method to KDiskDevice that also resets the
device geometry.
* If SetTo() reports no media, and GetGeometry() fails, the device geometry
  is now reset as well.
* KDiskDeviceManager::_ScanPartition() no longer unmarks the partition busy;
  this is now done by the caller, and done independently from the outcome of
  _ScanPartition(). This also fixes the problem that devices with no media
  were never marked unbusy (and thus were ignored subsequently).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22912 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-12 23:20:33 +00:00
Ingo Weinhold
6e122bd99e axeld + bonefish: Missed those changes in the previous commit:
* Added vfs_unmount(), which allows unmounting by dev_t (used by the DDM).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22910 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-12 20:54:17 +00:00
Ingo Weinhold
b3a5629b9e axeld + bonefish:
* Unmount when uninitializing a partition.
* Finished the media checker implementation, i.e. we rescan when a media
  was inserted and uninitialize when ejected.
* Turned the disk device media checker from a kernel daemon into a thread.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22909 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-12 18:41:36 +00:00
Axel Dörfler
637c2a8557 A tiny bit more debug output when tracing is enabled.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22902 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-11 16:33:28 +00:00
Axel Dörfler
3d268eda3d * Extracted file_map API out of the file cache - it's now an optional service
that can be used by file systems.
* Changed the way the file cache works: instead of reading/writing to the
  underlying device directly, it can now be used for any data source, ie.
  also network file systems.
* As a result, the former pages_io() moved to the VFS layer, and can now be
  called by a file system via {read|write}_file_io_vec_pages() (naming
  suggestions are always welcomed :-)). It now gets an FD, and uses that to
  communicate with the device (via its fs_{read|write}_pages() hooks).
* The file_cache_{read|write}() functions must now be called without holding
  an I/O relevant file system lock. That allows the file cache to prepare the
  pages without colliding with the page writer, IOW the "mayBlock" flag can
  go into the attic again (yay!).
* This also results in a much better performance when the system does I/O and
  is low on memory, as the page writer can now finally write back some pages,
  and that even without maxing out the CPU :)
* The API changes put slightly more burden on the fs_{read|write}_pages()
  hooks, but in combination with the file_map it's still pretty straight
  forward. It just will have to dispatch the call to the underlying device
  directly, usually it will just call its fs_{read|write}_pages() hooks
  via the above mentioned calls.
* Ported BFS and FAT to the new API, the latter has not been tested, though.
* Also ported the API changes to the fs_shell. I also completely removed its
  file cache level page handling - the downside is that device access is no
  longer cached (ie. depends on the host OS now), the upside is that the code
  is greatly simplified.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22886 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-10 21:19:52 +00:00
Ingo Weinhold
c9830ce0f5 * KDiskDeviceManager::{Find,Load}DiskSystem() can also find the disk
system by pretty name (not only module name) now.
* _user_initialize_partition() loads the disk system by pretty name.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22880 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-10 20:30:22 +00:00
Axel Dörfler
c84c58e41a Extracted file_map API for later use.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22864 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-09 17:09:54 +00:00
Axel Dörfler
3af0509ddb No wonder the page writer sucked so many cycles: the PageCacheLocker constructor
did not propagate the "dontWait" argument, letting the page writer never wait
for its pages.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22860 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-11-08 15:24:27 +00:00