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History

Alfred Perlstein bc9e75d7ca Backout removal SCARGS, the code freeze is only "selectively" over.		2002-12-13 22:41:47 +00:00
..
exec_ecoff.h	Finally add the Alpha OSF/1 compat code. I will add it to the	1999-12-14 22:35:36 +00:00
imgact_osf1.c	Use the fields in the sysentvec and in the vm map header in place of the	2002-09-21 22:07:17 +00:00
Makefile	Don't clobber the sources when plain "make" is run. Just print a message	2000-01-15 19:40:08 +00:00
osf1_ioctl.c	Remove __P(). This was tested on the GENERIC kernel.	2002-03-20 18:58:47 +00:00
osf1_misc.c	Backout removal SCARGS, the code freeze is only "selectively" over.	2002-12-13 22:41:47 +00:00
osf1_mount.c	Backout removal SCARGS, the code freeze is only "selectively" over.	2002-12-13 22:41:47 +00:00
osf1_proto.h	Remove __P(). This was tested on the GENERIC kernel.	2002-03-20 18:58:47 +00:00
osf1_signal.c	Backout removal SCARGS, the code freeze is only "selectively" over.	2002-12-13 22:41:47 +00:00
osf1_signal.h	Remove __P(). This was tested on the GENERIC kernel.	2002-03-20 18:58:47 +00:00
osf1_syscall.h	Regenerate. This seems to have been missed in the last commit.	2001-09-20 05:01:08 +00:00
osf1_sysent.c	Regenerate. This seems to have been missed in the last commit.	2001-09-20 05:01:08 +00:00
osf1_sysvec.c	Added fields for VM_MIN_ADDRESS, PS_STRINGS and stack protections to	2002-09-01 21:41:24 +00:00
osf1_util.h	Backout removal SCARGS, the code freeze is only "selectively" over.	2002-12-13 22:41:47 +00:00
osf1.h	Fix typo in the BSD copyright: s/withough/without/	2002-06-02 20:05:59 +00:00
README.mach-traps	Add NetBSD's explanation of why it would be hard to emulate the Mach	1999-12-14 22:39:27 +00:00
syscalls.conf	Finally add the Alpha OSF/1 compat code. I will add it to the	1999-12-14 22:35:36 +00:00
syscalls.master	Synchronize syscalls.master(s) with recent Giant pushdown work	2001-09-01 19:36:48 +00:00

README.mach-traps

$NetBSD: README.mach-traps,v 1.2 1999/03/23 09:19:25 itohy Exp $
$FreeBSD$

Some Alpha AXP OSF/1 binaries directly use the facilities provided by
the Mach kernel that is the basis for OSF/1.  These include (but are
surely not limited to) 'dd', 'ps', and 'w'.

Invariably, the symptom that these binaries display is that they crash
with an "unimplemented system call" trap (SIGSYS signal) for a syscall
that has a negative number.  In general, binaries that use the Mach
syscalls appear to invoke task_self() as their first syscall.

The name, number, and number of arguments for each Mach syscall is
given below; this information was gleaned by looking through the OSF/1
libmach.a's object files with dbx, then double-checked against the
contents of OSF/1's <mach/syscall_sw.h>.

These calls would be very difficult to implement properly in the
OSF/1 emulation code; by its very nature, NetBSD is not Mach, and we
don't and can't provide the underlying facilities that it does.

-- cgd

trap name			number	nargs	notes
---- ----			------	-----	-----
task_self			-10	0
thread_reply			-11	0
task_notify			-12	0
thread_self			-13	0
msg_send_old			-14	3
msg_receive_old			-15	3
msg_rpc_old			-16	5
msg_send_trap			-20	4
msg_receive_trap		-21	5
msg_rpc_trap			-22	6
lw_wire				-30	3
lw_unwire			-31	1
nxm_task_init			-33	2
nxm_sched_thread		-34	1
nxm_idle			-35	1
nxm_wakeup_idle			-36	1
nxm_set_pthid			-37	2
nxm_thread_kill			-38	2
nxm_thread_block		-39	1
nxm_thread_wakeup		-40	1
inode_swap_preference		-40	3	old call?
init_process			-41	0
map_fd				-43	5
nxm_resched			-44	2
htg_unix_syscall		-52	3
host_self			-55	1
host_priv_self			-56	1
swtch_pri			-59	1
swtch				-60	0
thread_switch			-61	3
semop_fast			-62	4
mach_sctimes_0			-70	0	only if MACH_SCTIMES defined
mach_sctimes_1			-71	1	only if MACH_SCTIMES defined
mach_sctimes_2			-72	2	only if MACH_SCTIMES defined
mach_sctimes_3			-73	3	only if MACH_SCTIMES defined
mach_sctimes_4			-74	4	only if MACH_SCTIMES defined
mach_sctimes_5			-75	5	only if MACH_SCTIMES defined
mach_sctimes_6			-76	6	only if MACH_SCTIMES defined
mach_sctimes_7			-77	0	only if MACH_SCTIMES defined
mach_sctimes_8			-78	6	only if MACH_SCTIMES defined
mach_sctimes_9			-79	1	only if MACH_SCTIMES defined
mach_sctimes_10			-80	2	only if MACH_SCTIMES defined
mach_sctimes_11			-81	2	only if MACH_SCTIMES defined
mach_sctimes_port_alloc_dealloc	-82	1	only if MACH_SCTIMES defined