1 /* Generic definitions for dealing with Mach thread states.
2 Copyright (C) 1994 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If
17 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
18 Cambridge, MA 02139, USA. */
21 /* Everything else is called `thread_state', but CMU's header file is
22 called `thread_status'. Oh boy. */
23 #include <mach/thread_status.h>
25 /* These functions are of use in machine-dependent signal trampoline
28 #include <string.h> /* size_t, memcpy */
29 #include <mach/mach_interface.h> /* __thread_get_state */
32 machine_get_state (thread_t thread, struct machine_thread_all_state *state,
33 int flavor, void *stateptr, void *scpptr, size_t size)
35 if (state->set & (1 << flavor))
37 /* Copy the saved state. */
38 memcpy (scpptr, stateptr, size);
43 /* Noone asked about this flavor of state before; fetch the state
44 directly from the kernel into the sigcontext. */
45 unsigned int got = (size / sizeof (int));
46 return (! __thread_get_state (thread, flavor, scpptr, &got)
47 && got == (size / sizeof (int)));
52 machine_get_basic_state (thread_t thread,
53 struct machine_thread_all_state *state)
57 if (state->set & (1 << MACHINE_THREAD_STATE_FLAVOR))
60 count = MACHINE_THREAD_STATE_COUNT;
61 if (__thread_get_state (thread, MACHINE_THREAD_STATE_FLAVOR,
62 (int *) &state->basic, &count) != KERN_SUCCESS ||
63 count != MACHINE_THREAD_STATE_COUNT)
64 /* What kind of thread?? */
67 state->set |= 1 << MACHINE_THREAD_STATE_FLAVOR;