Commit Graph
174 Commits
Author SHA1 Message Date
Axel Dörfler 888248d42e The kernel now panics if it didn't found any possible boot partitions.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14506 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-24 22:12:41 +00:00
Marcus Overhagen 31b6023a85 Fixed an off-by-one error in the read_from_buffer function,
testcase: size=7, in=7, first=0, read length=7

Fixed an off-by-(buffer->size) error in the write_to_buffer function,
testcase: size=7, in=2, first=3, write length=3



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14473 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-22 21:43:54 +00:00
Axel Dörfler 3d5ecf962c Minor cleanup, no functional change.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14472 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-22 16:53:49 +00:00
Axel Dörfler 9386f2e6a1 Missed a warning.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14466 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-21 14:04:17 +00:00
Axel Dörfler 8210eff8e8 Didn't compile with debug output turned on.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14465 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-21 14:02:17 +00:00
Axel Dörfler a4c373515e When a team died, only the time of its children were added to its parent
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
2005-10-21 00:15:17 +00:00
Axel Dörfler 7d9e0897ed Implemented sigsuspend() - not tested, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14459 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-20 18:09:50 +00:00
Axel Dörfler e4d36dd1f4 Implemented sigpending().
Forgot to atomically get some thread_debug_info values.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14458 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-20 17:19:46 +00:00
Axel Dörfler 50374cbdca Changed the signal handling code so that handle_signals() can be called without
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
2005-10-20 16:56:04 +00:00
Axel Dörfler 7121425eb5 Turns out we could remove a mount point...
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
2005-10-20 16:34:18 +00:00
Axel Dörfler 1c88c851ad Turned off debug output again - also temporarily removed the file cache warning
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
2005-10-19 23:01:57 +00:00
Axel Dörfler d7f0a6f215 If register_preloaded_module_image() fails, a warning is printed.
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
2005-10-19 22:45:13 +00:00
Axel Dörfler ca7c5a9e13 Implemented cache_detach_sub_transaction() - not tested yet, though.
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
2005-10-19 16:46:17 +00:00
Axel Dörfler 94752292dd First go at an implementation of sub transactions - code is not yet tested, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14429 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-19 14:37:29 +00:00
Axel Dörfler 0fc0129604 Fixed another stupid bug in all readv()/writev() versions: the position of
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
2005-10-18 19:51:47 +00:00
Axel Dörfler 28953e6c2b Fixed two stupid bugs in _kern_writev() and _kern_readv() - they accidently
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
2005-10-18 19:11:07 +00:00
Axel Dörfler 3ea780cdf9 If booted from an image, the list of possible boot partitions is now ordered by
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
2005-10-18 18:45:55 +00:00
Axel Dörfler 2db3fced5f Moved vfs_bootstrap_file_systems() and vfs_mount_boot_file_system() out of vfs.cpp
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
2005-10-17 14:01:04 +00:00
Axel Dörfler 76a377394e arch_debug_console_init() is called with args == NULL in case of an early
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
2005-10-17 10:15:42 +00:00
Axel Dörfler 313ffb09da Improved debugging output a bit.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14379 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-14 11:20:42 +00:00
Axel Dörfler 9a63d90397 Added kernel private VFS functions vfs_entry_ref_to_vnode() and vfs_vnode_to_node_ref().
Minor cleanup of vfs.h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14314 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-06 09:26:27 +00:00
Axel Dörfler 681779f1c8 Our close-on-exec flag handling was broken: it's supposed to be specified per slot, not
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
2005-10-06 09:02:59 +00:00
Axel Dörfler e90c3fec10 dup2() didn't close the evicted file descriptor (ie. call its close hook) - it just
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
2005-10-06 08:55:19 +00:00
Axel Dörfler 1670b8f596 num_used_fds counting was broken for dup2() and vfs_new_io_context() when it was
used with a parent context.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14311 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-06 08:53:17 +00:00
Axel Dörfler e8d4a05d8b Renamed the "iocontext" command to "io_context" to match the structure name.
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
2005-10-06 08:47:03 +00:00
Axel Dörfler 9e3ebf4033 exit_thread() no longer sends a signal when it's called from a kernel thread - instead,
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
2005-10-06 08:43:10 +00:00
Axel Dörfler 8d3256a4ad The "thread" debugger command now also accepts an address for the thread structure.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14308 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-06 08:40:35 +00:00
Axel Dörfler 7dc1c65f2f Improved "team" debugger command: it will no longer crash on the kernel team, it
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
2005-10-06 08:36:37 +00:00
Axel Dörfler 759a38d144 load_kernel_add_on() leaked FDs in case the image was already loaded.
And that was causing bug #50 (which is fixed now).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14305 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-05 16:41:04 +00:00
Axel Dörfler 333735e881 Added a new debugger command "iocontext" that prints out info about the kernel's
I/O context (or a specified one) including its FDs.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14304 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-05 16:39:45 +00:00
Axel Dörfler 08da6fccdd Introduced a sane concept of ownership for the team_args structure: now load_image_etc()
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
2005-10-05 15:32:48 +00:00
Axel Dörfler f10cba9aec Changed get_mount() to return a status code instead of just the mount or NULL.
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
2005-09-22 17:45:43 +00:00
Axel Dörfler d86d4063b0 thread_create_thread_start() is a thread_func and therefore returns int32 not status_t
(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
2005-09-16 12:52:59 +00:00
Jérôme Duval ab38c90461 added a libroot sigpending, kernel support isn't implemented
(fixed partly bug #49)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14181 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-09-13 16:12:20 +00:00
Jérôme Duval 3f84430938 added a trace and changed err type in team_create_thread_start()
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14180 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-09-13 15:44:30 +00:00
Jérôme Duval 96e6579454 added a libroot sigsuspend, kernel support isn't implemented
(fixed partly bug #48)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14129 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-09-08 12:26:16 +00:00
Axel Dörfler 47a54bea53 Rootfs now starts with 1 for the first inode ID.
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
2005-08-28 20:08:32 +00:00
Axel Dörfler b3373253a4 The generic syscall now returns more correct status codes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14078 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-28 14:10:12 +00:00
Axel Dörfler 43ffbcc46e If a page fault happens from within the kernel debugger, vm_page_fault() is no
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
2005-08-26 02:43:15 +00:00
Axel Dörfler 29cf7df355 kernel_debugger_loop() now memorizes the last sDebuggerOnCPU value, so that
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
2005-08-26 02:39:24 +00:00
Axel Dörfler e432cef296 Updated a few more hash functions to be able to deal with negative numbers.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14067 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-26 02:07:41 +00:00
Axel Dörfler f26e4a1c98 Made hash functions able to deal with keys with negative numbers.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14066 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-26 02:02:33 +00:00
Axel Dörfler 7b285866ff Fixed hash functions: when the key was lower than 0 (could happen with entry_refs
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
2005-08-26 02:01:21 +00:00
Axel Dörfler 19dfa58852 add_wall() first added the memory block to the list, and then added the wall - there
was a race condition between that and the wall checker daemon (if enabled): it could
occasionally report an overwritten wall in that very moment.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14051 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-22 21:01:03 +00:00
Axel Dörfler 5793da1edc Renamed elf_lookup_symbol_address() to elf_debug_lookup_symbol_address() and
removed the locking it did, as that doesn't work anymore in the kernel debugger.
The function was not thought to be used outside the debugger, anyway.
Improved usage message from debugger command "ls".


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14050 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-22 20:35:42 +00:00
Axel Dörfler c2ee3ca134 Added a comment on how to deal with directly writable memory mapped files.
There, we need to detect the modified state from the mapping, too - the
vm_page state itself might not be up to date.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14049 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-22 20:33:19 +00:00
Axel Dörfler 4784eca19d cache_io() did not set the state of a page to PAGE_STATE_MODIFIED when it wrote
to it - if that page was read from disk unmodified before (or written back in
the mean time), the updated contents coult not be detected, and therefore, were
never written back.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14048 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-22 20:31:32 +00:00
Axel Dörfler 67a7102658 Fixed a pretty fatal bug in the page fault handling: interrupts were enabled
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
2005-08-21 23:27:51 +00:00
Axel Dörfler 8a4462f51c Turned off debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14044 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-21 23:19:39 +00:00
Axel Dörfler 96643545c5 Removed unnecessary and stupid code - the doubled chain allocation also caused
a page fault during startup, because the chain memory is B_NO_LOCK.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14043 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-21 23:18:43 +00:00