1 /* 2 * See i386-fbsd.c for copyright and license terms. 3 * 4 * System call arguments come in several flavours: 5 * Hex -- values that should be printed in hex (addresses) 6 * Octal -- Same as above, but octal 7 * Int -- normal integer values (file descriptors, for example) 8 * Name -- pointer to a NULL-terminated string. 9 * BinString -- pointer to an array of chars, printed via strvisx(). 10 * Ptr -- pointer to some unspecified structure. Just print as hex for now. 11 * Stat -- a pointer to a stat buffer. Prints a couple fields. 12 * Ioctl -- an ioctl command. Woefully limited. 13 * Quad -- a double-word value. e.g., lseek(int, offset_t, int) 14 * Signal -- a signal number. Prints the signal name (SIGxxx) 15 * Sockaddr -- a pointer to a struct sockaddr. Prints symbolic AF, and IP:Port 16 * StringArray -- a pointer to an array of string pointers. 17 * Timespec -- a pointer to a struct timespec. Prints both elements. 18 * Timeval -- a pointer to a struct timeval. Prints both elements. 19 * Timeval2 -- a pointer to two struct timevals. Prints both elements of both. 20 * Itimerval -- a pointer to a struct itimerval. Prints all elements. 21 * Pollfd -- a pointer to an array of struct pollfd. Prints .fd and .events. 22 * Fd_set -- a pointer to an array of fd_set. Prints the fds that are set. 23 * Sigaction -- a pointer to a struct sigaction. Prints all elements. 24 * Umtx -- a pointer to a struct umtx. Prints the value of owner. 25 * Sigset -- a pointer to a sigset_t. Prints the signals that are set. 26 * Sigprocmask -- the first argument to sigprocmask(). Prints the name. 27 * Kevent -- a pointer to an array of struct kevents. Prints all elements. 28 * Pathconf -- the 2nd argument of patchconf(). 29 * 30 * In addition, the pointer types (String, Ptr) may have OUT masked in -- 31 * this means that the data is set on *return* from the system call -- or 32 * IN (meaning that the data is passed *into* the system call). 33 */ 34 /* 35 * $FreeBSD$ 36 */ 37 38 enum Argtype { None = 1, Hex, Octal, Int, Name, Ptr, Stat, Ioctl, Quad, 39 Signal, Sockaddr, StringArray, Timespec, Timeval, Itimerval, Pollfd, 40 Fd_set, Sigaction, Fcntl, Mprot, Mmapflags, Whence, Readlinkres, 41 Umtx, Sigset, Sigprocmask, Kevent, Sockdomain, Socktype, Open, 42 Fcntlflag, Rusage, BinString, Shutdown, Resource, Rlimit, Timeval2, 43 Pathconf }; 44 45 #define ARG_MASK 0xff 46 #define OUT 0x100 47 #define IN /*0x20*/0 48 49 struct syscall_args { 50 enum Argtype type; 51 int offset; 52 }; 53 54 struct syscall { 55 const char *name; 56 int ret_type; /* 0, 1, or 2 return values */ 57 int nargs; /* actual number of meaningful arguments */ 58 /* Hopefully, no syscalls with > 10 args */ 59 struct syscall_args args[10]; 60 }; 61 62 struct syscall *get_syscall(const char*); 63 char *print_arg(struct syscall_args *, unsigned long*, long, struct trussinfo *); 64 void print_syscall(struct trussinfo *, const char *, int, char **); 65 void print_syscall_ret(struct trussinfo *, const char *, int, char **, int, 66 long); 67