1 /* 2 * Copyright 2001 Jamey Wood 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #include <sys/linker_set.h> 29 #include <sys/queue.h> 30 31 #define FOLLOWFORKS 0x00000001 32 #define RELATIVETIMESTAMPS 0x00000002 33 #define ABSOLUTETIMESTAMPS 0x00000004 34 #define NOSIGS 0x00000008 35 #define EXECVEARGS 0x00000010 36 #define EXECVEENVS 0x00000020 37 #define COUNTONLY 0x00000040 38 #define DISPLAYTIDS 0x00000080 39 40 struct procinfo; 41 struct trussinfo; 42 43 struct procabi { 44 const char *type; 45 enum sysdecode_abi abi; 46 int (*fetch_args)(struct trussinfo *, u_int); 47 int (*fetch_retval)(struct trussinfo *, long *, int *); 48 }; 49 50 #define PROCABI(abi) DATA_SET(procabi, abi) 51 52 /* 53 * This is confusingly named. It holds per-thread state about the 54 * currently executing system call. syscall.h defines a struct 55 * syscall that holds metadata used to format system call arguments. 56 * 57 * NB: args[] stores the raw argument values (e.g. from registers) 58 * passed to the system call. s_args[] stores a string representation 59 * of a system call's arguments. These do not necessarily map one to 60 * one. A system call description may omit individual arguments 61 * (padding) or combine adjacent arguments (e.g. when passing an off_t 62 * argument on a 32-bit system). The nargs member contains the count 63 * of valid pointers in s_args[], not args[]. 64 */ 65 struct current_syscall { 66 struct syscall *sc; 67 const char *name; 68 int number; 69 unsigned long args[10]; 70 unsigned int nargs; 71 char *s_args[10]; /* the printable arguments */ 72 }; 73 74 struct threadinfo 75 { 76 LIST_ENTRY(threadinfo) entries; 77 struct procinfo *proc; 78 lwpid_t tid; 79 int in_syscall; 80 struct current_syscall cs; 81 struct timespec before; 82 struct timespec after; 83 }; 84 85 struct procinfo { 86 LIST_ENTRY(procinfo) entries; 87 pid_t pid; 88 struct procabi *abi; 89 90 LIST_HEAD(, threadinfo) threadlist; 91 }; 92 93 struct trussinfo 94 { 95 int flags; 96 int strsize; 97 FILE *outfile; 98 99 struct timespec start_time; 100 101 struct threadinfo *curthread; 102 103 LIST_HEAD(, procinfo) proclist; 104 }; 105 106 #define timespecsubt(tvp, uvp, vvp) \ 107 do { \ 108 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ 109 (vvp)->tv_nsec = (tvp)->tv_nsec - (uvp)->tv_nsec; \ 110 if ((vvp)->tv_nsec < 0) { \ 111 (vvp)->tv_sec--; \ 112 (vvp)->tv_nsec += 1000000000; \ 113 } \ 114 } while (0) 115 116 #define timespecadd(tvp, uvp, vvp) \ 117 do { \ 118 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ 119 (vvp)->tv_nsec = (tvp)->tv_nsec + (uvp)->tv_nsec; \ 120 if ((vvp)->tv_nsec > 1000000000) { \ 121 (vvp)->tv_sec++; \ 122 (vvp)->tv_nsec -= 1000000000; \ 123 } \ 124 } while (0) 125