e5a8a9b897
systems running a BSD-ish server. No dynamically linked executable support (it requires weird execve() hacks...), nor any Mach trap support. But it ran lots of statically linked binaries well enough for me to get bootstrapped.
59 lines
2.1 KiB
Plaintext
59 lines
2.1 KiB
Plaintext
$NetBSD: README.mach-traps,v 1.1 1995/02/13 21:39:02 cgd Exp $
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Some Alpha AXP OSF/1 binaries directly use the facilities provided by
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the Mach kernel that is the basis for OSF/1. These include (but are
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surely not limited to) 'dd', 'ps', and 'w'.
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Invariably, the symptom that these binaries display is that they crash
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with an "unimplemented system call" trap (SIGSYS signal) for a syscall
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that has a negative number. In general, binaries that use the Mach
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syscalls appear to invoke task_self() as their first syscall.
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The name, number, and number of arguments for each Mach syscall is
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given below; this information was gleaned by looking through the OSF/1
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libmach.a's object files with dbx, then double-checked against the
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contents of OSF/1's <mach/syscall_sw.h>.
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These calls would be very difficult to implement properly in the
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OSF/1 emulation code; by its very nature, NetBSD is not Mach, and we
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don't and can't provide the underlying facilities that it does.
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-- cgd
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trap name number nargs notes
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---- ---- ------ ----- -----
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task_self -10 0
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thread_reply -11 0
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task_notify -12 0
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thread_self -13 0
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msg_send_old -14 3
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msg_receive_old -15 3
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msg_rpc_old -16 5
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msg_send_trap -20 4
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msg_receive_trap -21 5
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msg_rpc_trap -22 6
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lw_wire -30 3
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lw_unwire -31 1
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inode_swap_preference -40 3
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init_process -41 0
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map_fd -43 5
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htg_unix_syscall -52 3
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host_self -55 1
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host_priv_self -56 1
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swtch_pri -59 1
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swtch -60 0
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thread_switch -61 3
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mach_sctimes_0 -70 0 only if MACH_SCTIMES defined
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mach_sctimes_1 -71 1 only if MACH_SCTIMES defined
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mach_sctimes_2 -72 2 only if MACH_SCTIMES defined
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mach_sctimes_3 -73 3 only if MACH_SCTIMES defined
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mach_sctimes_4 -74 4 only if MACH_SCTIMES defined
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mach_sctimes_5 -75 5 only if MACH_SCTIMES defined
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mach_sctimes_6 -76 6 only if MACH_SCTIMES defined
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mach_sctimes_7 -77 0 only if MACH_SCTIMES defined
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mach_sctimes_8 -78 6 only if MACH_SCTIMES defined
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mach_sctimes_9 -79 1 only if MACH_SCTIMES defined
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mach_sctimes_10 -80 2 only if MACH_SCTIMES defined
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mach_sctimes_11 -81 2 only if MACH_SCTIMES defined
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mach_sctimes_port_alloc_dealloc -82 1 only if MACH_SCTIMES defined
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