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 * String -- pointers to sensible data. Note that we treat read() and 9 * write() arguments as such, even though they may *not* be 10 * printable data. 11 * Ptr -- pointer to some specific structure. Just print as hex for now. 12 * Quad -- a double-word value. e.g., lseek(int, offset_t, int) 13 * Stat -- a pointer to a stat buffer. Currently unused. 14 * Ioctl -- an ioctl command. Woefully limited. 15 * 16 * In addition, the pointer types (String, Ptr) may have OUT masked in -- 17 * this means that the data is set on *return* from the system call -- or 18 * IN (meaning that the data is passed *into* the system call). 19 */ 20 /* 21 * $FreeBSD: src/usr.bin/truss/syscall.h,v 1.5.2.3 2002/02/15 11:43:51 des Exp $ 22 * $DragonFly: src/usr.bin/truss/syscall.h,v 1.2 2003/06/17 04:29:33 dillon Exp $ 23 */ 24 25 enum Argtype { None = 1, Hex, Octal, Int, String, Ptr, Stat, Ioctl, Quad, 26 Signal, Sockaddr }; 27 28 #define ARG_MASK 0xff 29 #define OUT 0x100 30 #define IN /*0x20*/0 31 32 struct syscall_args { 33 enum Argtype type; 34 int offset; 35 }; 36 37 struct syscall { 38 const char *name; 39 int ret_type; /* 0, 1, or 2 return values */ 40 int nargs; /* actual number of meaningful arguments */ 41 /* Hopefully, no syscalls with > 10 args */ 42 struct syscall_args args[10]; 43 }; 44 45 struct syscall *get_syscall(const char*); 46 char *get_string(int, void*, int); 47 char *print_arg(int, struct syscall_args *, unsigned long*); 48 void print_syscall(struct trussinfo *, const char *, int, char **); 49 void print_syscall_ret(struct trussinfo *, const char *, int, char **, int, int); 50