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strace.c
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#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 <arpa/inet.h>
#include <netinet/tcp.h>
#include <linux/if_packet.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_buf(abi_long addr, abi_long len, int last);
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);
UNUSED static void print_sockaddr(abi_ulong addr, abi_long addrlen);
UNUSED static void print_socket_domain(int domain);
UNUSED static void print_socket_type(int type);
UNUSED static void print_socket_protocol(int domain, int type, int protocol);
/*
* 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 */
output_cmd( MSG_STAT );
output_cmd( MSG_INFO );
/* 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));
}
static void print_si_code(int arg)
{
const char *codename = NULL;
switch (arg) {
case SI_USER:
codename = "SI_USER";
break;
case SI_KERNEL:
codename = "SI_KERNEL";
break;
case SI_QUEUE:
codename = "SI_QUEUE";
break;
case SI_TIMER:
codename = "SI_TIMER";
break;
case SI_MESGQ:
codename = "SI_MESGQ";
break;
case SI_ASYNCIO:
codename = "SI_ASYNCIO";
break;
case SI_SIGIO:
codename = "SI_SIGIO";
break;
case SI_TKILL:
codename = "SI_TKILL";
break;
default:
gemu_log("%d", arg);
return;
}
gemu_log("%s", codename);
}
static void print_siginfo(const target_siginfo_t *tinfo)
{
/* Print a target_siginfo_t in the format desired for printing
* signals being taken. We assume the target_siginfo_t is in the
* internal form where the top 16 bits of si_code indicate which
* part of the union is valid, rather than in the guest-visible
* form where the bottom 16 bits are sign-extended into the top 16.
*/
int si_type = extract32(tinfo->si_code, 16, 16);
int si_code = sextract32(tinfo->si_code, 0, 16);
gemu_log("{si_signo=");
print_signal(tinfo->si_signo, 1);
gemu_log(", si_code=");
print_si_code(si_code);
switch (si_type) {
case QEMU_SI_KILL:
gemu_log(", si_pid = %u, si_uid = %u",
(unsigned int)tinfo->_sifields._kill._pid,
(unsigned int)tinfo->_sifields._kill._uid);
break;
case QEMU_SI_TIMER:
gemu_log(", si_timer1 = %u, si_timer2 = %u",
tinfo->_sifields._timer._timer1,
tinfo->_sifields._timer._timer2);
break;
case QEMU_SI_POLL:
gemu_log(", si_band = %d, si_fd = %d",
tinfo->_sifields._sigpoll._band,
tinfo->_sifields._sigpoll._fd);
break;
case QEMU_SI_FAULT:
gemu_log(", si_addr = ");
print_pointer(tinfo->_sifields._sigfault._addr, 1);
break;
case QEMU_SI_CHLD:
gemu_log(", si_pid = %u, si_uid = %u, si_status = %d"
", si_utime=" TARGET_ABI_FMT_ld
", si_stime=" TARGET_ABI_FMT_ld,
(unsigned int)(tinfo->_sifields._sigchld._pid),
(unsigned int)(tinfo->_sifields._sigchld._uid),
tinfo->_sifields._sigchld._status,
tinfo->_sifields._sigchld._utime,
tinfo->_sifields._sigchld._stime);
break;
case QEMU_SI_RT:
gemu_log(", si_pid = %u, si_uid = %u, si_sigval = " TARGET_ABI_FMT_ld,
(unsigned int)tinfo->_sifields._rt._pid,
(unsigned int)tinfo->_sifields._rt._uid,
tinfo->_sifields._rt._sigval.sival_ptr);
break;
default:
g_assert_not_reached();
}
gemu_log("}");
}
static void
print_sockaddr(abi_ulong addr, abi_long addrlen)
{
struct target_sockaddr *sa;
int i;
int sa_family;
sa = lock_user(VERIFY_READ, addr, addrlen, 1);
if (sa) {
sa_family = tswap16(sa->sa_family);
switch (sa_family) {
case AF_UNIX: {
struct target_sockaddr_un *un = (struct target_sockaddr_un *)sa;
int i;
gemu_log("{sun_family=AF_UNIX,sun_path=\"");
for (i = 0; i < addrlen -
offsetof(struct target_sockaddr_un, sun_path) &&
un->sun_path[i]; i++) {
gemu_log("%c", un->sun_path[i]);
}
gemu_log("\"}");
break;
}
case AF_INET: {
struct target_sockaddr_in *in = (struct target_sockaddr_in *)sa;
uint8_t *c = (uint8_t *)&in->sin_addr.s_addr;
gemu_log("{sin_family=AF_INET,sin_port=htons(%d),",
ntohs(in->sin_port));
gemu_log("sin_addr=inet_addr(\"%d.%d.%d.%d\")",
c[0], c[1], c[2], c[3]);
gemu_log("}");
break;
}
case AF_PACKET: {
struct target_sockaddr_ll *ll = (struct target_sockaddr_ll *)sa;
uint8_t *c = (uint8_t *)&ll->sll_addr;
gemu_log("{sll_family=AF_PACKET,"
"sll_protocol=htons(0x%04x),if%d,pkttype=",
ntohs(ll->sll_protocol), ll->sll_ifindex);
switch (ll->sll_pkttype) {
case PACKET_HOST:
gemu_log("PACKET_HOST");
break;
case PACKET_BROADCAST:
gemu_log("PACKET_BROADCAST");
break;
case PACKET_MULTICAST:
gemu_log("PACKET_MULTICAST");
break;
case PACKET_OTHERHOST:
gemu_log("PACKET_OTHERHOST");
break;
case PACKET_OUTGOING:
gemu_log("PACKET_OUTGOING");
break;
default:
gemu_log("%d", ll->sll_pkttype);
break;
}
gemu_log(",sll_addr=%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]);
gemu_log("}");
break;
}
default:
gemu_log("{sa_family=%d, sa_data={", sa->sa_family);
for (i = 0; i < 13; i++) {
gemu_log("%02x, ", sa->sa_data[i]);
}
gemu_log("%02x}", sa->sa_data[i]);
gemu_log("}");
break;
}
unlock_user(sa, addr, 0);
} else {
print_raw_param("0x"TARGET_ABI_FMT_lx, addr, 0);
}
gemu_log(", "TARGET_ABI_FMT_ld, addrlen);
}
static void
print_socket_domain(int domain)
{
switch (domain) {
case PF_UNIX:
gemu_log("PF_UNIX");
break;
case PF_INET:
gemu_log("PF_INET");
break;
case PF_PACKET:
gemu_log("PF_PACKET");
break;
default:
gemu_log("%d", domain);
break;
}
}
static void
print_socket_type(int type)
{
switch (type) {
case TARGET_SOCK_DGRAM:
gemu_log("SOCK_DGRAM");
break;
case TARGET_SOCK_STREAM:
gemu_log("SOCK_STREAM");
break;
case TARGET_SOCK_RAW:
gemu_log("SOCK_RAW");
break;
case TARGET_SOCK_RDM:
gemu_log("SOCK_RDM");
break;
case TARGET_SOCK_SEQPACKET:
gemu_log("SOCK_SEQPACKET");
break;
case TARGET_SOCK_PACKET:
gemu_log("SOCK_PACKET");
break;
}
}
static void
print_socket_protocol(int domain, int type, int protocol)
{
if (domain == AF_PACKET ||
(domain == AF_INET && type == TARGET_SOCK_PACKET)) {
switch (protocol) {
case 0x0003:
gemu_log("ETH_P_ALL");
break;
default:
gemu_log("%d", protocol);
}
return;
}
switch (protocol) {
case IPPROTO_IP:
gemu_log("IPPROTO_IP");
break;
case IPPROTO_TCP:
gemu_log("IPPROTO_TCP");
break;
case IPPROTO_UDP:
gemu_log("IPPROTO_UDP");
break;
case IPPROTO_RAW:
gemu_log("IPPROTO_RAW");
break;
default:
gemu_log("%d", protocol);
break;
}
}
#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
#ifdef TARGET_NR_clock_adjtime
/* IDs of the various system clocks */
#define TARGET_CLOCK_REALTIME 0
#define TARGET_CLOCK_MONOTONIC 1
#define TARGET_CLOCK_PROCESS_CPUTIME_ID 2
#define TARGET_CLOCK_THREAD_CPUTIME_ID 3
#define TARGET_CLOCK_MONOTONIC_RAW 4
#define TARGET_CLOCK_REALTIME_COARSE 5
#define TARGET_CLOCK_MONOTONIC_COARSE 6
#define TARGET_CLOCK_BOOTTIME 7
#define TARGET_CLOCK_REALTIME_ALARM 8
#define TARGET_CLOCK_BOOTTIME_ALARM 9
#define TARGET_CLOCK_SGI_CYCLE 10
#define TARGET_CLOCK_TAI 11
static void
print_clockid(int clockid, int last)
{
switch (clockid) {
case TARGET_CLOCK_REALTIME:
gemu_log("CLOCK_REALTIME");
break;
case TARGET_CLOCK_MONOTONIC:
gemu_log("CLOCK_MONOTONIC");
break;
case TARGET_CLOCK_PROCESS_CPUTIME_ID:
gemu_log("CLOCK_PROCESS_CPUTIME_ID");
break;
case TARGET_CLOCK_THREAD_CPUTIME_ID:
gemu_log("CLOCK_THREAD_CPUTIME_ID");
break;
case TARGET_CLOCK_MONOTONIC_RAW:
gemu_log("CLOCK_MONOTONIC_RAW");
break;
case TARGET_CLOCK_REALTIME_COARSE:
gemu_log("CLOCK_REALTIME_COARSE");
break;
case TARGET_CLOCK_MONOTONIC_COARSE:
gemu_log("CLOCK_MONOTONIC_COARSE");
break;
case TARGET_CLOCK_BOOTTIME:
gemu_log("CLOCK_BOOTTIME");
break;
case TARGET_CLOCK_REALTIME_ALARM:
gemu_log("CLOCK_REALTIME_ALARM");
break;
case TARGET_CLOCK_BOOTTIME_ALARM:
gemu_log("CLOCK_BOOTTIME_ALARM");
break;
case TARGET_CLOCK_SGI_CYCLE:
gemu_log("CLOCK_SGI_CYCLE");
break;
case TARGET_CLOCK_TAI:
gemu_log("CLOCK_TAI");
break;
default:
gemu_log("%d", clockid);
break;
}
gemu_log("%s", get_comma(last));
}
#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)
{
const 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
/* special meanings of adjtimex()' non-negative return values */
#define TARGET_TIME_OK 0 /* clock synchronized, no leap second */
#define TARGET_TIME_INS 1 /* insert leap second */
#define TARGET_TIME_DEL 2 /* delete leap second */
#define TARGET_TIME_OOP 3 /* leap second in progress */
#define TARGET_TIME_WAIT 4 /* leap second has occurred */
#define TARGET_TIME_ERROR 5 /* clock not synchronized */
static void
print_syscall_ret_adjtimex(const struct syscallname *name, abi_long ret)
{
const char *errstr = NULL;
gemu_log(" = ");
if (ret < 0) {
gemu_log("-1 errno=%d", errno);
errstr = target_strerror(-ret);
if (errstr) {
gemu_log(" (%s)", errstr);
}
} else {
gemu_log(TARGET_ABI_FMT_ld, ret);
switch (ret) {
case TARGET_TIME_OK:
gemu_log(" TIME_OK (clock synchronized, no leap second)");
break;
case TARGET_TIME_INS:
gemu_log(" TIME_INS (insert leap second)");
break;
case TARGET_TIME_DEL:
gemu_log(" TIME_DEL (delete leap second)");
break;
case TARGET_TIME_OOP:
gemu_log(" TIME_OOP (leap second in progress)");
break;
case TARGET_TIME_WAIT:
gemu_log(" TIME_WAIT (leap second has occurred)");
break;
case TARGET_TIME_ERROR:
gemu_log(" TIME_ERROR (clock not synchronized)");
break;
}
}
gemu_log("\n");
}
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,
};
UNUSED static struct flags msg_flags[] = {
/* send */
FLAG_GENERIC(MSG_CONFIRM),
FLAG_GENERIC(MSG_DONTROUTE),
FLAG_GENERIC(MSG_DONTWAIT),
FLAG_GENERIC(MSG_EOR),
FLAG_GENERIC(MSG_MORE),
FLAG_GENERIC(MSG_NOSIGNAL),
FLAG_GENERIC(MSG_OOB),
/* recv */
FLAG_GENERIC(MSG_CMSG_CLOEXEC),
FLAG_GENERIC(MSG_ERRQUEUE),
FLAG_GENERIC(MSG_PEEK),
FLAG_GENERIC(MSG_TRUNC),
FLAG_GENERIC(MSG_WAITALL),
/* recvmsg */
FLAG_GENERIC(MSG_CTRUNC),
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) {