FreeBSD/Linux Kernel Cross Reference
sys/arm/include/proc.h
1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1991 Regents of the University of California.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * from: @(#)proc.h 7.1 (Berkeley) 5/15/91
36 * from: FreeBSD: src/sys/i386/include/proc.h,v 1.11 2001/06/29
37 * $FreeBSD$
38 */
39
40 #ifndef _MACHINE_PROC_H_
41 #define _MACHINE_PROC_H_
42
43 struct mdthread {
44 int md_spinlock_count; /* (k) */
45 register_t md_saved_cspr; /* (k) */
46 register_t md_spurflt_addr; /* (k) Spurious page fault address. */
47 int md_ptrace_instr;
48 int md_ptrace_addr;
49 int md_ptrace_instr_alt;
50 int md_ptrace_addr_alt;
51 };
52
53 struct mdproc {
54 long md_dummy;
55 };
56
57 #define KINFO_PROC_SIZE 816
58
59 #define MAXARGS 8
60 /*
61 * This holds the syscall state for a single system call.
62 * As some syscall arguments may be 64-bit aligned we need to ensure the
63 * args value is 64-bit aligned. The ABI will then ensure any 64-bit
64 * arguments are already correctly aligned, even if they were passed in
65 * via registers, we just need to make sure we copy them to an aligned
66 * buffer.
67 */
68 struct syscall_args {
69 u_int code;
70 struct sysent *callp;
71 register_t args[MAXARGS];
72 } __aligned(8);
73
74 #ifdef _KERNEL
75 #include <machine/pcb.h>
76
77 /* Get the current kernel thread stack usage. */
78 #define GET_STACK_USAGE(total, used) do { \
79 struct thread *td = curthread; \
80 (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \
81 (used) = td->td_kstack + (total) - (vm_offset_t)&td; \
82 } while (0)
83
84 #endif /* _KERNEL */
85 #endif /* !_MACHINE_PROC_H_ */
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