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=====================
Documentation Guide
=====================

This page intends to cover the documentation handling for OPNFV. OPNFV projects are expected to create a variety of document types,
according to the nature of the project. Some of these are common to projects that develop/integrate features into the OPNFV platform, e.g.
Installation Instructions and User/Configurations Guides. Other document types may be project-specific.

.. contents::
   :depth: 3
   :local:

Getting Started with Documentation for Your Project
----------------------------------------------------
OPNFV documentation is automated and integrated into our git & gerrit toolchains.

We use RST document templates in our repositories and automatically render to HTML and PDF versions of the documents in our artifact
store, our WiKi is also able to integrate these rendered documents directly allowing projects to use the revision controlled documentation
process for project information, content and deliverables.
Read :ref:`this page <include-documentation>` which elaborates on how documentation is to be included within opnfvdocs.

Licencing your documentation
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
All contributions to the OPNFV project are done in accordance with the OPNFV licensing requirements. Documentation in OPNFV is contributed
in accordance with the `Creative Commons 4.0 <https://creativecommons.org/licenses/by/4.0/>`_ licence.
All documentation files need to be licensed using the creative commons licence. The following example may be applied in the first lines of
all contributed RST files:

.. code-block:: bash

 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
 .. http://creativecommons.org/licenses/by/4.0
 .. (c) <optionally add copywriters name>

Or if you want to use the `SPDX https://spdx.org/>`_  Shorthand vs. the Creative Commons URL

.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. SPDX-License-Identifier: CC-BY-4.0
.. (c) <optionally add copywriters name>

 These lines will not be rendered in the html and pdf files.

How and where to store the document content files in your repository
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
All documentation for your project should be structured and stored in the :code:`<repo>/docs/` directory. The documentation toolchain will
look in these directories and be triggered on events in these directories when generating documents.

Document structure and contribution
-------------------------------------
A general structure is proposed for storing and handling documents that are common across many projects but also for documents that may be
project specific. The documentation is divided into three areas Release, Development and Testing. Templates for these areas can be found
under :code:`opnfvdocs/docs/templates/`.

Project teams are encouraged to use templates provided by the opnfvdocs project to ensure that there is consistency across the community.
Following representation shows the expected structure:

::

        docs/
        ├── development
        │   ├── design
        │   ├── overview
        │   └── requirements
        ├── release
        │   ├── configguide
        │   ├── installation
        │   ├── release-notes
        │   ├── scenarios
        │   │   └── scenario.name
        │   └── userguide
        └── testing
            ├── developer
            └── user


Release documentation
^^^^^^^^^^^^^^^^^^^^^^^^
Release documentation is the set of documents that are published for each OPNFV release. These documents are created and developed
following the OPNFV release process and milestones and should reflect the content of the OPNFV release.
These documents have a master index.rst file in the <opnfvdocs> repository and extract content from other repositories.
To provide content into these documents place your <content>.rst files in a directory in your repository that matches the master document
and add a reference to that file in the correct place in the corresponding index.rst file in :code:`opnfvdocs/docs/release/`.

**Platform Overview**: :code:`opnfvdocs/docs/release/overview`

- Note this document is not a contribution driven document
- Content for this is prepared by the Marketing team together with the opnfvdocs team

**Installation Instruction**: :code:`<repo>/docs/release/installation`

- Folder for documents describing how to deploy each installer and scenario descriptions
- Release notes will be included here <To Confirm>
- Security related documents will be included here
- Note that this document will be compiled into 'OPNFV Installation Instruction'

**User Guide**: :code:`<repo>/docs/release/userguide`

- Folder for manuals to use specific features
- Folder for documents describing how to install/configure project specific components and features
- Can be the directory where API reference for project specific features are stored
- Note this document will be compiled into 'OPNFV userguide'

**Configuration Guide**: :code:`<repo>/docs/release/configguide`

- Brief introduction to configure OPNFV with its dependencies.

**Release Notes**: :code:`<repo>/docs/release/release-notes`

- Changes brought about in the release cycle.
- Include version details.

Testing documentation
^^^^^^^^^^^^^^^^^^^^^^^^
Documentation created by test projects can be stored under two different sub directories /user or /developemnt.
Release notes will be stored under <repo>/docs/release/release-notes

**User documentation**: :code:`<repo>/testing/user/`
Will collect the documentation of the test projects allowing the end user to perform testing towards a OPNFV SUT
e.g. Functest/Yardstick/Vsperf/Storperf/Bottlenecks/Qtip installation/config & user guides.

**Development documentation**: :code:`<repo>/testing/developent/`
Will collect documentation to explain how to create your own test case and leverage existing testing frameworks e.g. developer guides.

Development Documentation
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Project specific documents such as design documentation, project overview or requirement documentation can be stored under
/docs/development. Links to generated documents will be dislayed under Development Documentaiton section on docs.opnfv.org.
You are encouraged to establish the following basic structure for your project as needed:

**Requirement Documentation**: :code:`<repo>/docs/development/requirements/`

- Folder for your requirement documentation
- For details on requirements projects' structures see the `Requirements Projects <https://wiki.opnfv.org/display/PROJ/Requirements+Projects>`_ page.

**Design Documentation**: :code:`<repo>/docs/development/design`

- Folder for your upstream design documents (blueprints, development proposals, etc..)

**Project overview**: :code:`<repo>/docs/development/overview`

- Folder for any project specific documentation.
8'>748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616
#include "qemu/osdep.h"
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/select.h>
#include <sys/mount.h>
#include <sys/mman.h>
#include <sched.h>
#include "qemu.h"

int do_strace=0;

struct syscallname {
    int nr;
    const char *name;
    const char *format;
    void (*call)(const struct syscallname *,
                 abi_long, abi_long, abi_long,
                 abi_long, abi_long, abi_long);
    void (*result)(const struct syscallname *, abi_long);
};

#ifdef __GNUC__
/*
 * It is possible that target doesn't have syscall that uses
 * following flags but we don't want the compiler to warn
 * us about them being unused.  Same applies to utility print
 * functions.  It is ok to keep them while not used.
 */
#define UNUSED __attribute__ ((unused))
#else
#define UNUSED
#endif

/*
 * Structure used to translate flag values into strings.  This is
 * similar that is in the actual strace tool.
 */
struct flags {
    abi_long    f_value;  /* flag */
    const char  *f_string; /* stringified flag */
};

/* common flags for all architectures */
#define FLAG_GENERIC(name) { name, #name }
/* target specific flags (syscall_defs.h has TARGET_<flag>) */
#define FLAG_TARGET(name)  { TARGET_ ## name, #name }
/* end of flags array */
#define FLAG_END           { 0, NULL }

UNUSED static const char *get_comma(int);
UNUSED static void print_pointer(abi_long, int);
UNUSED static void print_flags(const struct flags *, abi_long, int);
UNUSED static void print_at_dirfd(abi_long, int);
UNUSED static void print_file_mode(abi_long, int);
UNUSED static void print_open_flags(abi_long, int);
UNUSED static void print_syscall_prologue(const struct syscallname *);
UNUSED static void print_syscall_epilogue(const struct syscallname *);
UNUSED static void print_string(abi_long, int);
UNUSED static void print_raw_param(const char *, abi_long, int);
UNUSED static void print_timeval(abi_ulong, int);
UNUSED static void print_number(abi_long, int);
UNUSED static void print_signal(abi_ulong, int);

/*
 * Utility functions
 */
static void
print_ipc_cmd(int cmd)
{
#define output_cmd(val) \
if( cmd == val ) { \
    gemu_log(#val); \
    return; \
}

    cmd &= 0xff;

    /* General IPC commands */
    output_cmd( IPC_RMID );
    output_cmd( IPC_SET );
    output_cmd( IPC_STAT );
    output_cmd( IPC_INFO );
    /* msgctl() commands */
    #ifdef __USER_MISC
    output_cmd( MSG_STAT );
    output_cmd( MSG_INFO );
    #endif
    /* shmctl() commands */
    output_cmd( SHM_LOCK );
    output_cmd( SHM_UNLOCK );
    output_cmd( SHM_STAT );
    output_cmd( SHM_INFO );
    /* semctl() commands */
    output_cmd( GETPID );
    output_cmd( GETVAL );
    output_cmd( GETALL );
    output_cmd( GETNCNT );
    output_cmd( GETZCNT );
    output_cmd( SETVAL );
    output_cmd( SETALL );
    output_cmd( SEM_STAT );
    output_cmd( SEM_INFO );
    output_cmd( IPC_RMID );
    output_cmd( IPC_RMID );
    output_cmd( IPC_RMID );
    output_cmd( IPC_RMID );
    output_cmd( IPC_RMID );
    output_cmd( IPC_RMID );
    output_cmd( IPC_RMID );
    output_cmd( IPC_RMID );
    output_cmd( IPC_RMID );

    /* Some value we don't recognize */
    gemu_log("%d",cmd);
}

static void
print_signal(abi_ulong arg, int last)
{
    const char *signal_name = NULL;
    switch(arg) {
    case TARGET_SIGHUP: signal_name = "SIGHUP"; break;
    case TARGET_SIGINT: signal_name = "SIGINT"; break;
    case TARGET_SIGQUIT: signal_name = "SIGQUIT"; break;
    case TARGET_SIGILL: signal_name = "SIGILL"; break;
    case TARGET_SIGABRT: signal_name = "SIGABRT"; break;
    case TARGET_SIGFPE: signal_name = "SIGFPE"; break;
    case TARGET_SIGKILL: signal_name = "SIGKILL"; break;
    case TARGET_SIGSEGV: signal_name = "SIGSEGV"; break;
    case TARGET_SIGPIPE: signal_name = "SIGPIPE"; break;
    case TARGET_SIGALRM: signal_name = "SIGALRM"; break;
    case TARGET_SIGTERM: signal_name = "SIGTERM"; break;
    case TARGET_SIGUSR1: signal_name = "SIGUSR1"; break;
    case TARGET_SIGUSR2: signal_name = "SIGUSR2"; break;
    case TARGET_SIGCHLD: signal_name = "SIGCHLD"; break;
    case TARGET_SIGCONT: signal_name = "SIGCONT"; break;
    case TARGET_SIGSTOP: signal_name = "SIGSTOP"; break;
    case TARGET_SIGTTIN: signal_name = "SIGTTIN"; break;
    case TARGET_SIGTTOU: signal_name = "SIGTTOU"; break;
    }
    if (signal_name == NULL) {
        print_raw_param("%ld", arg, last);
        return;
    }
    gemu_log("%s%s", signal_name, get_comma(last));
}

#ifdef TARGET_NR__newselect
static void
print_fdset(int n, abi_ulong target_fds_addr)
{
    int i;

    gemu_log("[");
    if( target_fds_addr ) {
        abi_long *target_fds;

        target_fds = lock_user(VERIFY_READ,
                               target_fds_addr,
                               sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
                               1);

        if (!target_fds)
            return;

        for (i=n; i>=0; i--) {
            if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
                gemu_log("%d,", i );
            }
        unlock_user(target_fds, target_fds_addr, 0);
    }
    gemu_log("]");
}
#endif

/*
 * Sysycall specific output functions
 */

/* select */
#ifdef TARGET_NR__newselect
static long newselect_arg1 = 0;
static long newselect_arg2 = 0;
static long newselect_arg3 = 0;
static long newselect_arg4 = 0;
static long newselect_arg5 = 0;

static void
print_newselect(const struct syscallname *name,
                abi_long arg1, abi_long arg2, abi_long arg3,
                abi_long arg4, abi_long arg5, abi_long arg6)
{
    gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
    print_fdset(arg1, arg2);
    gemu_log(",");
    print_fdset(arg1, arg3);
    gemu_log(",");
    print_fdset(arg1, arg4);
    gemu_log(",");
    print_timeval(arg5, 1);
    gemu_log(")");

    /* save for use in the return output function below */
    newselect_arg1=arg1;
    newselect_arg2=arg2;
    newselect_arg3=arg3;
    newselect_arg4=arg4;
    newselect_arg5=arg5;
}
#endif

#ifdef TARGET_NR_semctl
static void
print_semctl(const struct syscallname *name,
             abi_long arg1, abi_long arg2, abi_long arg3,
             abi_long arg4, abi_long arg5, abi_long arg6)
{
    gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2);
    print_ipc_cmd(arg3);
    gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
}
#endif

static void
print_execve(const struct syscallname *name,
             abi_long arg1, abi_long arg2, abi_long arg3,
             abi_long arg4, abi_long arg5, abi_long arg6)
{
    abi_ulong arg_ptr_addr;
    char *s;

    if (!(s = lock_user_string(arg1)))
        return;
    gemu_log("%s(\"%s\",{", name->name, s);
    unlock_user(s, arg1, 0);

    for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
        abi_ulong *arg_ptr, arg_addr;

	arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
        if (!arg_ptr)
            return;
    arg_addr = tswapal(*arg_ptr);
	unlock_user(arg_ptr, arg_ptr_addr, 0);
        if (!arg_addr)
            break;
        if ((s = lock_user_string(arg_addr))) {
            gemu_log("\"%s\",", s);
            unlock_user(s, arg_addr, 0);
        }
    }

    gemu_log("NULL})");
}

#ifdef TARGET_NR_ipc
static void
print_ipc(const struct syscallname *name,
          abi_long arg1, abi_long arg2, abi_long arg3,
          abi_long arg4, abi_long arg5, abi_long arg6)
{
    switch(arg1) {
    case IPCOP_semctl:
        gemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", arg1, arg2);
        print_ipc_cmd(arg3);
        gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
        break;
    default:
        gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")",
                 name->name, arg1, arg2, arg3, arg4);
    }
}
#endif

/*
 * Variants for the return value output function
 */

static void
print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
{
    char *errstr = NULL;

    if (ret < 0) {
        errstr = target_strerror(-ret);
    }
    if (errstr) {
        gemu_log(" = -1 errno=%d (%s)\n", (int)-ret, errstr);
    } else {
        gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
    }
}

#if 0 /* currently unused */
static void
print_syscall_ret_raw(struct syscallname *name, abi_long ret)
{
        gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
}
#endif

#ifdef TARGET_NR__newselect
static void
print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
{
    gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
    print_fdset(newselect_arg1,newselect_arg2);
    gemu_log(",");
    print_fdset(newselect_arg1,newselect_arg3);
    gemu_log(",");
    print_fdset(newselect_arg1,newselect_arg4);
    gemu_log(",");
    print_timeval(newselect_arg5, 1);
    gemu_log(")\n");
}
#endif

UNUSED static struct flags access_flags[] = {
    FLAG_GENERIC(F_OK),
    FLAG_GENERIC(R_OK),
    FLAG_GENERIC(W_OK),
    FLAG_GENERIC(X_OK),
    FLAG_END,
};

UNUSED static struct flags at_file_flags[] = {
#ifdef AT_EACCESS
    FLAG_GENERIC(AT_EACCESS),
#endif
#ifdef AT_SYMLINK_NOFOLLOW
    FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
#endif
    FLAG_END,
};

UNUSED static struct flags unlinkat_flags[] = {
#ifdef AT_REMOVEDIR
    FLAG_GENERIC(AT_REMOVEDIR),
#endif
    FLAG_END,
};

UNUSED static struct flags mode_flags[] = {
    FLAG_GENERIC(S_IFSOCK),
    FLAG_GENERIC(S_IFLNK),
    FLAG_GENERIC(S_IFREG),
    FLAG_GENERIC(S_IFBLK),
    FLAG_GENERIC(S_IFDIR),
    FLAG_GENERIC(S_IFCHR),
    FLAG_GENERIC(S_IFIFO),
    FLAG_END,
};

UNUSED static struct flags open_access_flags[] = {
    FLAG_TARGET(O_RDONLY),
    FLAG_TARGET(O_WRONLY),
    FLAG_TARGET(O_RDWR),
    FLAG_END,
};

UNUSED static struct flags open_flags[] = {
    FLAG_TARGET(O_APPEND),
    FLAG_TARGET(O_CREAT),
    FLAG_TARGET(O_DIRECTORY),
    FLAG_TARGET(O_EXCL),
    FLAG_TARGET(O_LARGEFILE),
    FLAG_TARGET(O_NOCTTY),
    FLAG_TARGET(O_NOFOLLOW),
    FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
    FLAG_TARGET(O_DSYNC),
    FLAG_TARGET(__O_SYNC),
    FLAG_TARGET(O_TRUNC),
#ifdef O_DIRECT
    FLAG_TARGET(O_DIRECT),
#endif
#ifdef O_NOATIME
    FLAG_TARGET(O_NOATIME),
#endif
#ifdef O_CLOEXEC
    FLAG_TARGET(O_CLOEXEC),
#endif
#ifdef O_PATH
    FLAG_TARGET(O_PATH),
#endif
    FLAG_END,
};

UNUSED static struct flags mount_flags[] = {
#ifdef MS_BIND
    FLAG_GENERIC(MS_BIND),
#endif
#ifdef MS_DIRSYNC
    FLAG_GENERIC(MS_DIRSYNC),
#endif
    FLAG_GENERIC(MS_MANDLOCK),
#ifdef MS_MOVE
    FLAG_GENERIC(MS_MOVE),
#endif
    FLAG_GENERIC(MS_NOATIME),
    FLAG_GENERIC(MS_NODEV),
    FLAG_GENERIC(MS_NODIRATIME),
    FLAG_GENERIC(MS_NOEXEC),
    FLAG_GENERIC(MS_NOSUID),
    FLAG_GENERIC(MS_RDONLY),
#ifdef MS_RELATIME
    FLAG_GENERIC(MS_RELATIME),
#endif
    FLAG_GENERIC(MS_REMOUNT),
    FLAG_GENERIC(MS_SYNCHRONOUS),
    FLAG_END,
};

UNUSED static struct flags umount2_flags[] = {
#ifdef MNT_FORCE
    FLAG_GENERIC(MNT_FORCE),
#endif
#ifdef MNT_DETACH
    FLAG_GENERIC(MNT_DETACH),
#endif
#ifdef MNT_EXPIRE
    FLAG_GENERIC(MNT_EXPIRE),
#endif
    FLAG_END,
};

UNUSED static struct flags mmap_prot_flags[] = {
    FLAG_GENERIC(PROT_NONE),
    FLAG_GENERIC(PROT_EXEC),
    FLAG_GENERIC(PROT_READ),
    FLAG_GENERIC(PROT_WRITE),
    FLAG_TARGET(PROT_SEM),
    FLAG_GENERIC(PROT_GROWSDOWN),
    FLAG_GENERIC(PROT_GROWSUP),
    FLAG_END,
};

UNUSED static struct flags mmap_flags[] = {
    FLAG_TARGET(MAP_SHARED),
    FLAG_TARGET(MAP_PRIVATE),
    FLAG_TARGET(MAP_ANONYMOUS),
    FLAG_TARGET(MAP_DENYWRITE),
    FLAG_TARGET(MAP_FIXED),
    FLAG_TARGET(MAP_GROWSDOWN),
    FLAG_TARGET(MAP_EXECUTABLE),
#ifdef MAP_LOCKED
    FLAG_TARGET(MAP_LOCKED),
#endif
#ifdef MAP_NONBLOCK
    FLAG_TARGET(MAP_NONBLOCK),
#endif
    FLAG_TARGET(MAP_NORESERVE),
#ifdef MAP_POPULATE
    FLAG_TARGET(MAP_POPULATE),
#endif
#ifdef TARGET_MAP_UNINITIALIZED
    FLAG_TARGET(MAP_UNINITIALIZED),
#endif
    FLAG_END,
};

UNUSED static struct flags clone_flags[] = {
    FLAG_GENERIC(CLONE_VM),
    FLAG_GENERIC(CLONE_FS),
    FLAG_GENERIC(CLONE_FILES),
    FLAG_GENERIC(CLONE_SIGHAND),
    FLAG_GENERIC(CLONE_PTRACE),
    FLAG_GENERIC(CLONE_VFORK),
    FLAG_GENERIC(CLONE_PARENT),
    FLAG_GENERIC(CLONE_THREAD),
    FLAG_GENERIC(CLONE_NEWNS),
    FLAG_GENERIC(CLONE_SYSVSEM),
    FLAG_GENERIC(CLONE_SETTLS),
    FLAG_GENERIC(CLONE_PARENT_SETTID),
    FLAG_GENERIC(CLONE_CHILD_CLEARTID),
    FLAG_GENERIC(CLONE_DETACHED),
    FLAG_GENERIC(CLONE_UNTRACED),
    FLAG_GENERIC(CLONE_CHILD_SETTID),
#if defined(CLONE_NEWUTS)
    FLAG_GENERIC(CLONE_NEWUTS),
#endif
#if defined(CLONE_NEWIPC)
    FLAG_GENERIC(CLONE_NEWIPC),
#endif
#if defined(CLONE_NEWUSER)
    FLAG_GENERIC(CLONE_NEWUSER),
#endif
#if defined(CLONE_NEWPID)
    FLAG_GENERIC(CLONE_NEWPID),
#endif
#if defined(CLONE_NEWNET)
    FLAG_GENERIC(CLONE_NEWNET),
#endif
#if defined(CLONE_IO)
    FLAG_GENERIC(CLONE_IO),
#endif
    FLAG_END,
};

/*
 * print_xxx utility functions.  These are used to print syscall
 * parameters in certain format.  All of these have parameter
 * named 'last'.  This parameter is used to add comma to output
 * when last == 0.
 */

static const char *
get_comma(int last)
{
    return ((last) ? "" : ",");
}

static void
print_flags(const struct flags *f, abi_long flags, int last)
{
    const char *sep = "";
    int n;

    if ((flags == 0) && (f->f_value == 0)) {
        gemu_log("%s%s", f->f_string, get_comma(last));
        return;
    }
    for (n = 0; f->f_string != NULL; f++) {
        if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
            gemu_log("%s%s", sep, f->f_string);
            flags &= ~f->f_value;
            sep = "|";
            n++;
        }
    }

    if (n > 0) {
        /* print rest of the flags as numeric */
        if (flags != 0) {
            gemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
        } else {
            gemu_log("%s", get_comma(last));
        }
    } else {
        /* no string version of flags found, print them in hex then */
        gemu_log("%#x%s", (unsigned int)flags, get_comma(last));
    }
}

static void
print_at_dirfd(abi_long dirfd, int last)
{
#ifdef AT_FDCWD
    if (dirfd == AT_FDCWD) {
        gemu_log("AT_FDCWD%s", get_comma(last));
        return;
    }
#endif
    gemu_log("%d%s", (int)dirfd, get_comma(last));
}

static void
print_file_mode(abi_long mode, int last)
{
    const char *sep = "";
    const struct flags *m;

    for (m = &mode_flags[0]; m->f_string != NULL; m++) {
        if ((m->f_value & mode) == m->f_value) {
            gemu_log("%s%s", m->f_string, sep);
            sep = "|";
            mode &= ~m->f_value;
            break;
        }
    }

    mode &= ~S_IFMT;
    /* print rest of the mode as octal */
    if (mode != 0)
        gemu_log("%s%#o", sep, (unsigned int)mode);

    gemu_log("%s", get_comma(last));
}

static void
print_open_flags(abi_long flags, int last)
{
    print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
    flags &= ~TARGET_O_ACCMODE;
    if (flags == 0) {
        gemu_log("%s", get_comma(last));
        return;
    }
    gemu_log("|");
    print_flags(open_flags, flags, last);
}

static void
print_syscall_prologue(const struct syscallname *sc)
{
    gemu_log("%s(", sc->name);
}

/*ARGSUSED*/
static void
print_syscall_epilogue(const struct syscallname *sc)
{
    (void)sc;
    gemu_log(")");
}

static void
print_string(abi_long addr, int last)
{
    char *s;

    if ((s = lock_user_string(addr)) != NULL) {
        gemu_log("\"%s\"%s", s, get_comma(last));
        unlock_user(s, addr, 0);
    } else {
        /* can't get string out of it, so print it as pointer */
        print_pointer(addr, last);
    }
}

/*
 * Prints out raw parameter using given format.  Caller needs
 * to do byte swapping if needed.
 */
static void
print_raw_param(const char *fmt, abi_long param, int last)
{
    char format[64];

    (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
    gemu_log(format, param);
}

static void
print_pointer(abi_long p, int last)
{
    if (p == 0)
        gemu_log("NULL%s", get_comma(last));
    else
        gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
}

/*
 * Reads 32-bit (int) number from guest address space from
 * address 'addr' and prints it.
 */
static void
print_number(abi_long addr, int last)
{
    if (addr == 0) {
        gemu_log("NULL%s", get_comma(last));
    } else {
        int num;

        get_user_s32(num, addr);
        gemu_log("[%d]%s", num, get_comma(last));
    }
}

static void
print_timeval(abi_ulong tv_addr, int last)
{
    if( tv_addr ) {
        struct target_timeval *tv;

        tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
        if (!tv)
            return;
        gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
            tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
        unlock_user(tv, tv_addr, 0);
    } else
        gemu_log("NULL%s", get_comma(last));
}

#undef UNUSED

#ifdef TARGET_NR_accept
static void
print_accept(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_raw_param("%d", arg0, 0);
    print_pointer(arg1, 0);
    print_number(arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_access
static void
print_access(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_flags(access_flags, arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_brk
static void
print_brk(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_pointer(arg0, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_chdir
static void
print_chdir(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_chmod
static void
print_chmod(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_file_mode(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_clone
static void
print_clone(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
#if defined(TARGET_M68K)
    print_flags(clone_flags, arg0, 0);
    print_raw_param("newsp=0x" TARGET_ABI_FMT_lx, arg1, 1);
#elif defined(TARGET_SH4) || defined(TARGET_ALPHA)
    print_flags(clone_flags, arg0, 0);
    print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg1, 0);
    print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
    print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg3, 0);
    print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg4, 1);
#elif defined(TARGET_CRIS)
    print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg0, 0);
    print_flags(clone_flags, arg1, 0);
    print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
    print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg3, 0);
    print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg4, 1);
#else
    print_flags(clone_flags, arg0, 0);
    print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg1, 0);
    print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
    print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg3, 0);
    print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg4, 1);
#endif
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_creat
static void
print_creat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_file_mode(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_execv
static void
print_execv(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_faccessat
static void
print_faccessat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_flags(access_flags, arg2, 0);
    print_flags(at_file_flags, arg3, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_fchmodat
static void
print_fchmodat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_file_mode(arg2, 0);
    print_flags(at_file_flags, arg3, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_fchownat
static void
print_fchownat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_raw_param("%d", arg2, 0);
    print_raw_param("%d", arg3, 0);
    print_flags(at_file_flags, arg4, 1);
    print_syscall_epilogue(name);
}
#endif

#if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
static void
print_fcntl(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_raw_param("%d", arg0, 0);
    switch(arg1) {
    case TARGET_F_DUPFD:
        gemu_log("F_DUPFD,");
        print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
        break;
    case TARGET_F_GETFD:
        gemu_log("F_GETFD");
        break;
    case TARGET_F_SETFD:
        gemu_log("F_SETFD,");
        print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
        break;
    case TARGET_F_GETFL:
        gemu_log("F_GETFL");
        break;
    case TARGET_F_SETFL:
        gemu_log("F_SETFL,");
        print_open_flags(arg2, 1);
        break;
    case TARGET_F_GETLK:
        gemu_log("F_GETLK,");
        print_pointer(arg2, 1);
        break;
    case TARGET_F_SETLK:
        gemu_log("F_SETLK,");
        print_pointer(arg2, 1);
        break;
    case TARGET_F_SETLKW:
        gemu_log("F_SETLKW,");
        print_pointer(arg2, 1);
        break;
    case TARGET_F_GETOWN:
        gemu_log("F_GETOWN");
        break;
    case TARGET_F_SETOWN:
        gemu_log("F_SETOWN,");
        print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
        break;
    case TARGET_F_GETSIG:
        gemu_log("F_GETSIG");
        break;
    case TARGET_F_SETSIG:
        gemu_log("F_SETSIG,");
        print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
        break;
#if TARGET_ABI_BITS == 32
    case TARGET_F_GETLK64:
        gemu_log("F_GETLK64,");
        print_pointer(arg2, 1);
        break;
    case TARGET_F_SETLK64:
        gemu_log("F_SETLK64,");
        print_pointer(arg2, 1);
        break;
    case TARGET_F_SETLKW64:
        gemu_log("F_SETLKW64,");
        print_pointer(arg2, 1);
        break;
#endif
    case TARGET_F_SETLEASE:
        gemu_log("F_SETLEASE,");
        print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
        break;
    case TARGET_F_GETLEASE:
        gemu_log("F_GETLEASE");
        break;
    case TARGET_F_DUPFD_CLOEXEC:
        gemu_log("F_DUPFD_CLOEXEC,");
        print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
        break;
    case TARGET_F_NOTIFY:
        gemu_log("F_NOTIFY,");
        print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
        break;
    default:
        print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
        print_pointer(arg2, 1);
        break;
    }
    print_syscall_epilogue(name);
}
#define print_fcntl64   print_fcntl
#endif


#ifdef TARGET_NR_futimesat
static void
print_futimesat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_timeval(arg2, 0);
    print_timeval(arg2 + sizeof (struct target_timeval), 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_link
static void
print_link(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_string(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_linkat
static void
print_linkat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_at_dirfd(arg2, 0);
    print_string(arg3, 0);
    print_flags(at_file_flags, arg4, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR__llseek
static void
print__llseek(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    const char *whence = "UNKNOWN";
    print_syscall_prologue(name);
    print_raw_param("%d", arg0, 0);
    print_raw_param("%ld", arg1, 0);
    print_raw_param("%ld", arg2, 0);
    print_pointer(arg3, 0);
    switch(arg4) {
    case SEEK_SET: whence = "SEEK_SET"; break;
    case SEEK_CUR: whence = "SEEK_CUR"; break;
    case SEEK_END: whence = "SEEK_END"; break;
    }
    gemu_log("%s",whence);
    print_syscall_epilogue(name);
}
#endif

#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
    defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
static void
print_stat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_pointer(arg1, 1);
    print_syscall_epilogue(name);
}
#define print_lstat     print_stat
#define print_stat64	print_stat
#define print_lstat64   print_stat
#endif

#if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
static void
print_fstat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_raw_param("%d", arg0, 0);
    print_pointer(arg1, 1);
    print_syscall_epilogue(name);
}
#define print_fstat64     print_fstat
#endif

#ifdef TARGET_NR_mkdir
static void
print_mkdir(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_file_mode(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_mkdirat
static void
print_mkdirat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_file_mode(arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_rmdir
static void
print_rmdir(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_rt_sigaction
static void
print_rt_sigaction(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_signal(arg0, 0);
    print_pointer(arg1, 0);
    print_pointer(arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_rt_sigprocmask
static void
print_rt_sigprocmask(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    const char *how = "UNKNOWN";
    print_syscall_prologue(name);
    switch(arg0) {
    case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
    case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
    case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
    }
    gemu_log("%s,",how);
    print_pointer(arg1, 0);
    print_pointer(arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_mknod
static void
print_mknod(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    int hasdev = (arg1 & (S_IFCHR|S_IFBLK));

    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_file_mode(arg1, (hasdev == 0));
    if (hasdev) {
        print_raw_param("makedev(%d", major(arg2), 0);
        print_raw_param("%d)", minor(arg2), 1);
    }
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_mknodat
static void
print_mknodat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    int hasdev = (arg2 & (S_IFCHR|S_IFBLK));

    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_file_mode(arg2, (hasdev == 0));
    if (hasdev) {
        print_raw_param("makedev(%d", major(arg3), 0);
        print_raw_param("%d)", minor(arg3), 1);
    }
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_mq_open
static void
print_mq_open(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    int is_creat = (arg1 & TARGET_O_CREAT);

    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_open_flags(arg1, (is_creat == 0));
    if (is_creat) {
        print_file_mode(arg2, 0);
        print_pointer(arg3, 1);
    }
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_open
static void
print_open(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    int is_creat = (arg1 & TARGET_O_CREAT);

    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_open_flags(arg1, (is_creat == 0));
    if (is_creat)
        print_file_mode(arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_openat
static void
print_openat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    int is_creat = (arg2 & TARGET_O_CREAT);

    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_open_flags(arg2, (is_creat == 0));
    if (is_creat)
        print_file_mode(arg3, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_mq_unlink
static void
print_mq_unlink(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 1);
    print_syscall_epilogue(name);
}
#endif

#if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
static void
print_fstatat64(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_pointer(arg2, 0);
    print_flags(at_file_flags, arg3, 1);
    print_syscall_epilogue(name);
}
#define print_newfstatat    print_fstatat64
#endif

#ifdef TARGET_NR_readlink
static void
print_readlink(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_pointer(arg1, 0);
    print_raw_param("%u", arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_readlinkat
static void
print_readlinkat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_pointer(arg2, 0);
    print_raw_param("%u", arg3, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_rename
static void
print_rename(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_string(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_renameat
static void
print_renameat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_at_dirfd(arg2, 0);
    print_string(arg3, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_statfs
static void
print_statfs(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_pointer(arg1, 1);
    print_syscall_epilogue(name);
}
#define print_statfs64  print_statfs
#endif

#ifdef TARGET_NR_symlink
static void
print_symlink(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_string(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_symlinkat
static void
print_symlinkat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_at_dirfd(arg1, 0);
    print_string(arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_mount
static void
print_mount(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_string(arg1, 0);
    print_string(arg2, 0);
    print_flags(mount_flags, arg3, 0);
    print_pointer(arg4, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_umount
static void
print_umount(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_umount2
static void
print_umount2(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_flags(umount2_flags, arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_unlink
static void
print_unlink(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_unlinkat
static void
print_unlinkat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_flags(unlinkat_flags, arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_utime
static void
print_utime(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_pointer(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_utimes
static void
print_utimes(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_string(arg0, 0);
    print_pointer(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_utimensat
static void
print_utimensat(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_at_dirfd(arg0, 0);
    print_string(arg1, 0);
    print_pointer(arg2, 0);
    print_flags(at_file_flags, arg3, 1);
    print_syscall_epilogue(name);
}
#endif

#if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
static void
print_mmap(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_pointer(arg0, 0);
    print_raw_param("%d", arg1, 0);
    print_flags(mmap_prot_flags, arg2, 0);
    print_flags(mmap_flags, arg3, 0);
    print_raw_param("%d", arg4, 0);
    print_raw_param("%#x", arg5, 1);
    print_syscall_epilogue(name);
}
#define print_mmap2     print_mmap
#endif

#ifdef TARGET_NR_mprotect
static void
print_mprotect(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_pointer(arg0, 0);
    print_raw_param("%d", arg1, 0);
    print_flags(mmap_prot_flags, arg2, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_munmap
static void
print_munmap(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_pointer(arg0, 0);
    print_raw_param("%d", arg1, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_futex
static void print_futex_op(abi_long tflag, int last)
{
#define print_op(val) \
if( cmd == val ) { \
    gemu_log(#val); \
    return; \
}

    int cmd = (int)tflag;
#ifdef FUTEX_PRIVATE_FLAG
    if (cmd & FUTEX_PRIVATE_FLAG) {
        gemu_log("FUTEX_PRIVATE_FLAG|");
        cmd &= ~FUTEX_PRIVATE_FLAG;
    }
#endif
#ifdef FUTEX_CLOCK_REALTIME
    if (cmd & FUTEX_CLOCK_REALTIME) {
        gemu_log("FUTEX_CLOCK_REALTIME|");
        cmd &= ~FUTEX_CLOCK_REALTIME;
    }
#endif
    print_op(FUTEX_WAIT)
    print_op(FUTEX_WAKE)
    print_op(FUTEX_FD)
    print_op(FUTEX_REQUEUE)
    print_op(FUTEX_CMP_REQUEUE)
    print_op(FUTEX_WAKE_OP)
    print_op(FUTEX_LOCK_PI)
    print_op(FUTEX_UNLOCK_PI)
    print_op(FUTEX_TRYLOCK_PI)
#ifdef FUTEX_WAIT_BITSET
    print_op(FUTEX_WAIT_BITSET)
#endif
#ifdef FUTEX_WAKE_BITSET
    print_op(FUTEX_WAKE_BITSET)
#endif
    /* unknown values */
    gemu_log("%d",cmd);
}

static void
print_futex(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_pointer(arg0, 0);
    print_futex_op(arg1, 0);
    print_raw_param(",%d", arg2, 0);
    print_pointer(arg3, 0); /* struct timespec */
    print_pointer(arg4, 0);
    print_raw_param("%d", arg4, 1);
    print_syscall_epilogue(name);
}
#endif

#ifdef TARGET_NR_kill
static void
print_kill(const struct syscallname *name,
    abi_long arg0, abi_long arg1, abi_long arg2,
    abi_long arg3, abi_long arg4, abi_long arg5)
{
    print_syscall_prologue(name);
    print_raw_param("%d", arg0, 0);
    print_signal(arg1, 1);
    print_syscall_epilogue(name);
}
#endif

/*
 * An array of all of the syscalls we know about
 */

static const struct syscallname scnames[] = {
#include "strace.list"
};

static int nsyscalls = ARRAY_SIZE(scnames);

/*
 * The public interface to this module.
 */
void
print_syscall(int num,
              abi_long arg1, abi_long arg2, abi_long arg3,
              abi_long arg4, abi_long arg5, abi_long arg6)
{
    int i;
    const 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 ")";

    gemu_log("%d ", getpid() );

    for(i=0;i<nsyscalls;i++)
        if( scnames[i].nr == num ) {
            if( scnames[i].call != NULL ) {
                scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
            } else {
                /* XXX: this format system is broken because it uses
                   host types and host pointers for strings */
                if( scnames[i].format != NULL )
                    format = scnames[i].format;
                gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
            }
            return;
        }
    gemu_log("Unknown syscall %d\n", num);
}


void
print_syscall_ret(int num, abi_long ret)
{
    int i;
    char *errstr = NULL;

    for(i=0;i<nsyscalls;i++)
        if( scnames[i].nr == num ) {
            if( scnames[i].result != NULL ) {
                scnames[i].result(&scnames[i],ret);
            } else {
                if (ret < 0) {
                    errstr = target_strerror(-ret);
                }
                if (errstr) {
                    gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
                             -ret, errstr);
                } else {
                    gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
                }
            }
            break;
        }
}