Commit Graph

14 Commits

Author SHA1 Message Date
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 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 80a30f1a31 A first attempt at providing access to our device tree through the IOKit.
Darwin's ioreg is able to display the tree.
2003-02-09 22:13:46 +00:00
manu 874517b438 - When MACH_MSG_RCV_LARGE is set, we must return a message with just a header
and a body.
- If mach_init is not availabkle for boostrap requests, try to handle them
in the kernel (we don't really handle them, we just try to avoid hanging there)
- minor tweaks.
2002-12-27 19:57:47 +00:00
manu b2a7ace594 Better error reporting in mach_msg_trap: this system call does not use the
standard error codes.
2002-12-24 15:54:26 +00:00
manu 5ba396cfb3 Added support for exchange of Mach messages between processes.
This does not buy us new functionnality for now, because we still have to
discover how mach_init (which acts as a name server, enabling processes to
discover each other's ports) is able to receive messages from other processes
(this is a bootstrap problem, and the bootstrap port might be the place to
search).

While we are there:
- removed a lot of debug which is now available using ktrace.
- reworked message handling to avoid mutliple copyin/copyout of the
same data. ktrace of Mach message now uses the in-kernel copy of the
message instead of copying it from userland.
- packed mach trap handlers arguments into a structure to avoid modifying
everything next time we have to add an argument.
2002-12-17 18:42:54 +00:00
manu b8a9df5e21 FIrst attempt at mach ports and rights, which are needed if we ever want
to implement messages between kernel and userland.
While we are there, cleanup some debug messages.
2002-12-15 00:40:24 +00:00
manu 9e08cf7d46 Remove debug printf (now ktrace does the job) 2002-12-09 21:53:28 +00:00
manu 6492e2171f Added support for dumping mach messages in ktrace/kdump. While we are
there, KNFify a few functions.
2002-12-09 21:29:20 +00:00
manu 56b9df9869 Improved mach_vm_map emulation: take into account proection, alignement,
and improve debug messages.
2002-12-04 22:55:11 +00:00
manu 0f239dc026 Check for alternate receive buffer for mach_msg_overwrite_trap
Check for target buffer length, and fail if it is too short
Move mach_msg_trap and mach_msg_overwrite_trap to their own file
Remove some useless debug messages now we have ktrace
Remove __P()
2002-11-28 21:21:32 +00:00
manu f130f7a839 In mach_reply_port, don't increment the returned port for now, this confuses
the binary on the second launch.
In mach_vm_map, hack in a failure so that we fail exactly like Darwin when
mapping a page at address 0
Add vm_allocate trap
2002-11-12 06:14:39 +00:00
manu 3eb20e3576 mach_ports_lookup allocate one page of memory and returns its address.
On error, most traps return a short packet with just an error code, emulate
this correctly.
2002-11-12 05:18:31 +00:00
manu 293d243256 Introduce a better error reporting, using mach error codes
It seems there is no need to use dynamic allocation in mach_host_info.
2002-11-11 01:18:44 +00:00