1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright 2001 Jamey Wood 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #include <sys/queue.h> 31 32 #define FOLLOWFORKS 0x00000001 33 #define RELATIVETIMESTAMPS 0x00000002 34 #define ABSOLUTETIMESTAMPS 0x00000004 35 #define NOSIGS 0x00000008 36 #define EXECVEARGS 0x00000010 37 #define EXECVEENVS 0x00000020 38 #define COUNTONLY 0x00000040 39 #define DISPLAYTIDS 0x00000080 40 41 struct procinfo; 42 struct syscall; 43 struct trussinfo; 44 45 /* 46 * The lookup of normal system calls are optimized by using a fixed 47 * array for the first 1024 system calls that can be indexed directly. 48 * Unknown system calls with other IDs are stored in a linked list. 49 */ 50 #define SYSCALL_NORMAL_COUNT 1024 51 52 struct extra_syscall { 53 STAILQ_ENTRY(extra_syscall) entries; 54 struct syscall *sc; 55 u_int number; 56 }; 57 58 struct procabi { 59 const char *type; 60 enum sysdecode_abi abi; 61 size_t pointer_size; 62 const char *compat_prefix; 63 STAILQ_HEAD(, extra_syscall) extra_syscalls; 64 struct syscall *syscalls[SYSCALL_NORMAL_COUNT]; 65 }; 66 67 /* 68 * This is confusingly named. It holds per-thread state about the 69 * currently executing system call. syscall.h defines a struct 70 * syscall that holds metadata used to format system call arguments. 71 * 72 * NB: args[] stores the raw argument values (e.g. from registers) 73 * passed to the system call. s_args[] stores a string representation 74 * of a system call's arguments. These do not necessarily map one to 75 * one. A system call description may omit individual arguments 76 * (padding) or combine adjacent arguments (e.g. when passing an off_t 77 * argument on a 32-bit system). The nargs member contains the count 78 * of valid pointers in s_args[], not args[]. 79 */ 80 struct current_syscall { 81 struct syscall *sc; 82 unsigned int number; 83 unsigned int nargs; 84 unsigned long args[10]; 85 char *s_args[10]; /* the printable arguments */ 86 }; 87 88 struct threadinfo 89 { 90 LIST_ENTRY(threadinfo) entries; 91 struct procinfo *proc; 92 lwpid_t tid; 93 int in_syscall; 94 struct current_syscall cs; 95 struct timespec before; 96 struct timespec after; 97 }; 98 99 struct procinfo { 100 LIST_ENTRY(procinfo) entries; 101 pid_t pid; 102 struct procabi *abi; 103 104 LIST_HEAD(, threadinfo) threadlist; 105 }; 106 107 struct trussinfo 108 { 109 int flags; 110 int strsize; 111 FILE *outfile; 112 113 struct timespec start_time; 114 115 struct threadinfo *curthread; 116 117 LIST_HEAD(, procinfo) proclist; 118 }; 119