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245 Commits

Author SHA1 Message Date
jdolecek 74436be135 pass the fork flags down to the emulation fork hook, so that emulation 
code can use the information for setup
 2004-08-08 08:42:03 +00:00
manu 6c669327ef Add the emul.mach.exception.hang sysctl, which helps catching programs 
that die before they disapear. This is usefull because we cannot start
Mach-O binaries under gdb. We attach the hung process instead.
 2004-07-27 22:01:56 +00:00
manu 7e06aa42fb Regen 2004-07-24 15:47:23 +00:00
manu 4bc8afece2 Added port_get_refs and port_mod_refs 2004-07-24 15:46:02 +00:00
manu f58d4a42e1 bugfix: vm_copy was only copying the first page 2004-07-18 23:19:52 +00:00
manu 4d933c5be0 Mark the thread id as clean in cthread_set_self 2004-07-03 09:44:04 +00:00
drochner d19f706361 all ports define __HAVE_SIGINFO now, so remove the CPP conditionals 2004-03-26 17:34:18 +00:00
pooka 8b2eb5b87e Use PR_WAITOK instead of M_WAITOK for pool_get(). This is polite, 
since M_WAITOK happens to be PR_NOWAIT.
 2004-03-24 16:55:07 +00:00
manu 29638672ea off-by-one error in ary subscript. 2004-01-02 02:09:52 +00:00
manu 996e659ce6 Try to do a better job at Mach port refcount. That's not perfect, though. 2004-01-01 22:48:54 +00:00
manu d1845c906c - Rework the Mach semaphore code to handle threads instead of processes 
- Add 2 system calls: semaphore_signal_thread and sempaphore_signal_all (the
latter being untested)
- semaphore_signal_thread arguments list was wrong
 2003-12-30 00:15:46 +00:00
manu 1a96ea0da6 In DPRINTF? replace uprintf, so that we get debug output for daemons too. 2003-12-30 00:14:20 +00:00
manu 7ab97b2c76 Added Mach services (no real implementation, just empty shells to make 
userland happy)
processor_set_default, host_processor_set_priv, and thread_set_policy
 2003-12-29 01:30:27 +00:00
manu 31b3c2a056 Added the semaphore_wait_signal_trap Mach system call (untested) 2003-12-28 23:00:36 +00:00
manu 2c772b20d9 When the catcher of an exception dies before releasing the thread that 
raised the exception, don't release the lock, this causes a crash (the lock
shall be released by the process that took it). Wakeup the thread instead,
it will release the lock itself.
 2003-12-28 13:28:39 +00:00
manu d0de7398af union without a name does not build on i386... 2003-12-26 16:31:29 +00:00
manu 834aafd284 Rework Mach exception and Darwin's ptrace. gdb is now able to attach a 
remote process. This new implementation also passes all the test programs
I've written so far.

- When exceptions come from traps, no UNIX signal should evet be sent.
- Add a lock to ensure a debugger handles only one exception at a time
- Use a structure to hold flavor and behavior in exception ports, instead
  of stuffing the two argument into an int.
- Implement new Mach services: thread_suspend, thread_resume and thread_abort
- Implement Darwin's ptrace PT_ATTACHEXC and PT_THUPDATE commands
- Handle NULL second argument correctly in sigprocmask.
- One mistake in the last commit (darwin_tracesig prototype)
 2003-12-24 23:22:22 +00:00
manu ebbd46991b clock_sleep was 10 times too fast because of a wrong constant. 2003-12-21 14:44:43 +00:00
simonb 740725d725 Fix usage of fifth argument to pool_init(). 2003-12-21 07:53:58 +00:00
manu 066436a916 Provide a kernel port for each thread. This makes the emulation of 
Mach threads much more accurate: we do not confuse threads and tasks
anymore.
 2003-12-20 19:43:17 +00:00
fvdl d99705e941 Put back Emmanuel's sigfilter hooks, as decided by Core. 2003-12-20 19:01:29 +00:00
manu b23b73b953 Introduce lwp_emuldata and the associated hooks. No hook is provided for the 
exec case, as the emulation already has the ability to intercept that
with the e_proc_exec hook. It is the responsability of the emulation to
take appropriaye action about lwp_emuldata in e_proc_exec.

Patch reviewed by Christos.
 2003-12-20 18:22:16 +00:00
grant 44ed233ab5 KNF, spelling and english fixes to some comments. remove trailing 
whitespace.
 2003-12-18 01:10:20 +00:00
manu 780bd92b51 Catch signals in clock_sleep, so that sleeping processes can be interupted. 2003-12-09 22:04:25 +00:00
manu 10f0bf745b Fix various broken sanity checks in iokit emulation. 
Add some methods to IOFramebuffer (DARWIN_IOFBSETBOUNDS,
DARWIN_IOFBSETCURSORVISIBLE) and to IOHIDSystem (DARWIN_IOHIDPOSTEVENT),
all are unimplemented empty shells.
 2003-12-09 17:13:18 +00:00
manu 98c34875d4 In mach_msg_error, don't display error message when the error 
is 0 (no error). This function is often used as a shortcut to
return a short message with retval = 0.

Add error codes to the debug display
 2003-12-09 17:10:02 +00:00
manu b50934fc19 Move exception related code to a dedicated file 2003-12-09 12:13:44 +00:00
manu 99ee466dbb Move most of the code involved into message header, trailer, and descriptor 
construction to inline functions. This removes a lot of redundent code
from Mach services
 2003-12-09 11:29:01 +00:00
manu 98f233296d Factor the code for OOL data movement into mach_ool_copyin and 
mach_ool_copyout.

Handle port namespace and address space translations when OOL
data moves between different processes (untested)
 2003-12-08 19:27:38 +00:00
manu 9046478856 Use appropriate macro definitions when filling complex messages 
descriptor. This changes nothing but it removes a lot of XXX
 2003-12-08 12:03:16 +00:00
manu df54a7fcc7 When handling complex messages, uses mach_msg_type_descriptor_t until we 
know what type a descriptor really is.
 2003-12-08 12:02:24 +00:00
manu 4e9539e452 When a task to task message carries ports, translate the port names into the 
receiver namespace.

While we are there, refactor mach_msg_overwrite by splitting it into
several smaller functions. It had grown too big to be easily maintainable.
 2003-12-07 23:44:14 +00:00
manu c29e7d5f16 Added SCHED_INFO flavor in host_info 2003-12-07 10:17:09 +00:00
manu dc728f311c Don't allow mappings at address zero in vm_allocate: first page is a 
red zone in Darwin, and nothing should be mapped there.
While we are here, ifdef DEBUG_MACH_VM all the VM-related debug messages
 2003-12-06 19:34:21 +00:00
manu 0951833f2e Remove the reference to struct proc in kernel and host port once the 
process terminate, so that no stale pointer can be used if the port is
still referenced
 2003-12-06 17:04:50 +00:00
manu 0105d58e0a Don't send Mach exceptions to dying processes 2003-12-06 15:16:38 +00:00
manu 174b751317 In task_terminate, unstop the process so that we can really terminate it now 2003-12-06 15:16:10 +00:00
manu 8f3ee36470 Fix some panics caused by incorrect Mach exceptions reference counts 2003-12-06 15:15:19 +00:00
jdolecek 0e253cf5f5 back the sigfilter emulation hook change off 2003-12-05 21:12:42 +00:00
manu ac7838e90f In the basic thread info, suspend count is the suspend sempahore. Just return 
0 for now. This is plain wrong, but at least it allows gdb to startup a
program.
 2003-12-03 22:25:46 +00:00
manu 18e13eee35 Add a sigfilter emulation hook. It is used at the beginning of kpsignal2() 
so that a specific emulation has the oportunity to filter out some signals.

if sigfilter returns 0, then no signal is sent by kpsignal2().

There is another place where signals can be generated: trapsignal. Since this
function is already an emulation hook, no call to the sigfilter hook was
introduced in trapsignal.

This is needed to emulate the softsignal feature in COMPAT_DARWIN (signals
sent as Mach exception messages)
 2003-12-03 20:24:51 +00:00
manu 7973f2217b Rework Mach exceptions and softignals 
Exceptions coming from a trap are generated from darwin_trapsignal()
softsignals are from darwin_sigfilter(), a function that is called
from darwin_trapsignal() and from kpsignal2() [the latter from a
emulation specific hook which is not yet committed]

Make some sanity checks to avoid sending data to a port with no receiver.

See http://mail-index.netbsd.org/tech-kern/2003/12/01/0008.html and
follow-ups for details.
 2003-12-03 18:40:07 +00:00
manu 057381d1b4 Move machine dependent definitions to machine dependent headers. 2003-12-03 18:25:44 +00:00
manu 20fbf8c756 Trace data movement with vm_read and vm_write 2003-12-03 18:19:12 +00:00
manu eff089cdc0 More santity checks when sending data to a port: is there someone listening 
on the receive end?
 2003-12-03 18:18:43 +00:00
manu 437424d5f6 I forgot to commit this file for vm_machine_attribute to build correctly 2003-11-30 20:42:55 +00:00
manu ab8a1b7902 Add task_terminate 2003-11-30 20:42:03 +00:00
manu 540ad6ee85 Fix minor bug in the script that generate Mach services files (the master 
fie tag was not copied)
 2003-11-30 00:09:59 +00:00
manu 097771219f Implement vm_read, vm_write, and a framework for vm_machine_attribute. 
THe machine dependent bit nees to be written.
 2003-11-29 23:56:08 +00:00
manu 23a18da8cd To lookup a map entry in vm_map, use uvm_map_lookup, and not uvm_map_findspace, 
which will not work on already mapped objects.
 2003-11-28 08:03:14 +00:00