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1.1 ! root 1: #include <stdio.h> ! 2: #include <errno.h> ! 3: #include <sys/ipc.h> ! 4: #include <sys/msg.h> ! 5: #include <sys/sem.h> ! 6: #include <sys/shm.h> ! 7: #include <sys/select.h> ! 8: #include <sys/types.h> ! 9: #include <unistd.h> ! 10: #include "qemu.h" ! 11: ! 12: int do_strace=0; ! 13: ! 14: struct syscallname { ! 15: int nr; ! 16: char *name; ! 17: char *format; ! 18: void (*call)(struct syscallname *, ! 19: abi_long, abi_long, abi_long, ! 20: abi_long, abi_long, abi_long); ! 21: void (*result)(struct syscallname *, abi_long); ! 22: }; ! 23: ! 24: /* ! 25: * Utility functions ! 26: */ ! 27: static void ! 28: print_ipc_cmd(int cmd) ! 29: { ! 30: #define output_cmd(val) \ ! 31: if( cmd == val ) { \ ! 32: gemu_log(#val); \ ! 33: return; \ ! 34: } ! 35: ! 36: cmd &= 0xff; ! 37: ! 38: /* General IPC commands */ ! 39: output_cmd( IPC_RMID ); ! 40: output_cmd( IPC_SET ); ! 41: output_cmd( IPC_STAT ); ! 42: output_cmd( IPC_INFO ); ! 43: /* msgctl() commands */ ! 44: #ifdef __USER_MISC ! 45: output_cmd( MSG_STAT ); ! 46: output_cmd( MSG_INFO ); ! 47: #endif ! 48: /* shmctl() commands */ ! 49: output_cmd( SHM_LOCK ); ! 50: output_cmd( SHM_UNLOCK ); ! 51: output_cmd( SHM_STAT ); ! 52: output_cmd( SHM_INFO ); ! 53: /* semctl() commands */ ! 54: output_cmd( GETPID ); ! 55: output_cmd( GETVAL ); ! 56: output_cmd( GETALL ); ! 57: output_cmd( GETNCNT ); ! 58: output_cmd( GETZCNT ); ! 59: output_cmd( SETVAL ); ! 60: output_cmd( SETALL ); ! 61: output_cmd( SEM_STAT ); ! 62: output_cmd( SEM_INFO ); ! 63: output_cmd( IPC_RMID ); ! 64: output_cmd( IPC_RMID ); ! 65: output_cmd( IPC_RMID ); ! 66: output_cmd( IPC_RMID ); ! 67: output_cmd( IPC_RMID ); ! 68: output_cmd( IPC_RMID ); ! 69: output_cmd( IPC_RMID ); ! 70: output_cmd( IPC_RMID ); ! 71: output_cmd( IPC_RMID ); ! 72: ! 73: /* Some value we don't recognize */ ! 74: gemu_log("%d",cmd); ! 75: } ! 76: ! 77: #ifdef TARGET_NR__newselect ! 78: static void ! 79: print_fdset(int n, abi_ulong target_fds_addr) ! 80: { ! 81: int i; ! 82: ! 83: gemu_log("["); ! 84: if( target_fds_addr ) { ! 85: abi_long *target_fds; ! 86: ! 87: target_fds = lock_user(VERIFY_READ, ! 88: target_fds_addr, ! 89: sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1), ! 90: 1); ! 91: ! 92: if (!target_fds) ! 93: return; ! 94: ! 95: for (i=n; i>=0; i--) { ! 96: if ((tswapl(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1) ! 97: gemu_log("%d,", i ); ! 98: } ! 99: unlock_user(target_fds, target_fds_addr, 0); ! 100: } ! 101: gemu_log("]"); ! 102: } ! 103: ! 104: static void ! 105: print_timeval(abi_ulong tv_addr) ! 106: { ! 107: if( tv_addr ) { ! 108: struct target_timeval *tv; ! 109: ! 110: tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1); ! 111: if (!tv) ! 112: return; ! 113: gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}", ! 114: tv->tv_sec, tv->tv_usec); ! 115: unlock_user(tv, tv_addr, 0); ! 116: } else ! 117: gemu_log("NULL"); ! 118: } ! 119: #endif ! 120: ! 121: /* ! 122: * Sysycall specific output functions ! 123: */ ! 124: ! 125: /* select */ ! 126: #ifdef TARGET_NR__newselect ! 127: static long newselect_arg1 = 0; ! 128: static long newselect_arg2 = 0; ! 129: static long newselect_arg3 = 0; ! 130: static long newselect_arg4 = 0; ! 131: static long newselect_arg5 = 0; ! 132: ! 133: static void ! 134: print_newselect(struct syscallname *name, ! 135: abi_long arg1, abi_long arg2, abi_long arg3, ! 136: abi_long arg4, abi_long arg5, abi_long arg6) ! 137: { ! 138: gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1); ! 139: print_fdset(arg1, arg2); ! 140: gemu_log(","); ! 141: print_fdset(arg1, arg3); ! 142: gemu_log(","); ! 143: print_fdset(arg1, arg4); ! 144: gemu_log(","); ! 145: print_timeval(arg5); ! 146: gemu_log(")"); ! 147: ! 148: /* save for use in the return output function below */ ! 149: newselect_arg1=arg1; ! 150: newselect_arg2=arg2; ! 151: newselect_arg3=arg3; ! 152: newselect_arg4=arg4; ! 153: newselect_arg5=arg5; ! 154: } ! 155: #endif ! 156: ! 157: static void ! 158: print_semctl(struct syscallname *name, ! 159: abi_long arg1, abi_long arg2, abi_long arg3, ! 160: abi_long arg4, abi_long arg5, abi_long arg6) ! 161: { ! 162: gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2); ! 163: print_ipc_cmd(arg3); ! 164: gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4); ! 165: } ! 166: ! 167: static void ! 168: print_execve(struct syscallname *name, ! 169: abi_long arg1, abi_long arg2, abi_long arg3, ! 170: abi_long arg4, abi_long arg5, abi_long arg6) ! 171: { ! 172: abi_ulong arg_ptr_addr; ! 173: char *s; ! 174: ! 175: if (!(s = lock_user_string(arg1))) ! 176: return; ! 177: gemu_log("%s(\"%s\",{", name->name, s); ! 178: unlock_user(s, arg1, 0); ! 179: ! 180: for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) { ! 181: abi_ulong *arg_ptr, arg_addr, s_addr; ! 182: ! 183: arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1); ! 184: if (!arg_ptr) ! 185: return; ! 186: arg_addr = tswapl(*arg_ptr); ! 187: unlock_user(arg_ptr, arg_ptr_addr, 0); ! 188: if (!arg_addr) ! 189: break; ! 190: if ((s = lock_user_string(arg_addr))) { ! 191: gemu_log("\"%s\",", s); ! 192: unlock_user(s, s_addr, 0); ! 193: } ! 194: } ! 195: ! 196: gemu_log("NULL})"); ! 197: } ! 198: ! 199: #ifdef TARGET_NR_ipc ! 200: static void ! 201: print_ipc(struct syscallname *name, ! 202: abi_long arg1, abi_long arg2, abi_long arg3, ! 203: abi_long arg4, abi_long arg5, abi_long arg6) ! 204: { ! 205: switch(arg1) { ! 206: case IPCOP_semctl: ! 207: name->name = "semctl"; ! 208: print_semctl(name,arg2,arg3,arg4,arg5,arg6,0); ! 209: break; ! 210: default: ! 211: gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")", ! 212: name->name, arg1, arg2, arg3, arg4); ! 213: } ! 214: } ! 215: #endif ! 216: ! 217: /* ! 218: * Variants for the return value output function ! 219: */ ! 220: ! 221: static void ! 222: print_syscall_ret_addr(struct syscallname *name, abi_long ret) ! 223: { ! 224: if( ret == -1 ) { ! 225: gemu_log(" = -1 errno=%d (%s)\n", errno, target_strerror(errno)); ! 226: } else { ! 227: gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret); ! 228: } ! 229: } ! 230: ! 231: #if 0 /* currently unused */ ! 232: static void ! 233: print_syscall_ret_raw(struct syscallname *name, abi_long ret) ! 234: { ! 235: gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret); ! 236: } ! 237: #endif ! 238: ! 239: #ifdef TARGET_NR__newselect ! 240: static void ! 241: print_syscall_ret_newselect(struct syscallname *name, abi_long ret) ! 242: { ! 243: gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret); ! 244: print_fdset(newselect_arg1,newselect_arg2); ! 245: gemu_log(","); ! 246: print_fdset(newselect_arg1,newselect_arg3); ! 247: gemu_log(","); ! 248: print_fdset(newselect_arg1,newselect_arg4); ! 249: gemu_log(","); ! 250: print_timeval(newselect_arg5); ! 251: gemu_log(")\n"); ! 252: } ! 253: #endif ! 254: ! 255: /* ! 256: * An array of all of the syscalls we know about ! 257: */ ! 258: ! 259: static struct syscallname scnames[] = { ! 260: #include "strace.list" ! 261: }; ! 262: ! 263: static int nsyscalls = sizeof(scnames)/sizeof(struct syscallname); ! 264: ! 265: /* ! 266: * The public interface to this module. ! 267: */ ! 268: void ! 269: print_syscall(int num, ! 270: abi_long arg1, abi_long arg2, abi_long arg3, ! 271: abi_long arg4, abi_long arg5, abi_long arg6) ! 272: { ! 273: int i; ! 274: char *format="%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")"; ! 275: ! 276: gemu_log("%d ", getpid() ); ! 277: ! 278: for(i=0;i<nsyscalls;i++) ! 279: if( scnames[i].nr == num ) { ! 280: if( scnames[i].call != NULL ) { ! 281: scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6); ! 282: } else { ! 283: /* XXX: this format system is broken because it uses ! 284: host types and host pointers for strings */ ! 285: if( scnames[i].format != NULL ) ! 286: format = scnames[i].format; ! 287: gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6); ! 288: } ! 289: break; ! 290: } ! 291: } ! 292: ! 293: ! 294: void ! 295: print_syscall_ret(int num, abi_long ret) ! 296: { ! 297: int i; ! 298: ! 299: for(i=0;i<nsyscalls;i++) ! 300: if( scnames[i].nr == num ) { ! 301: if( scnames[i].result != NULL ) { ! 302: scnames[i].result(&scnames[i],ret); ! 303: } else { ! 304: if( ret < 0 ) { ! 305: gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret, target_strerror(-ret)); ! 306: } else { ! 307: gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret); ! 308: } ! 309: } ! 310: break; ! 311: } ! 312: } ! 313:
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