317 lines
7.9 KiB
C
317 lines
7.9 KiB
C
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/msg.h>
|
|
#include <sys/sem.h>
|
|
#include <sys/shm.h>
|
|
#include <sys/select.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.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);
|
|
};
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
#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 ((tswapl(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("]");
|
|
}
|
|
|
|
static void
|
|
print_timeval(abi_ulong tv_addr)
|
|
{
|
|
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 "}",
|
|
tv->tv_sec, tv->tv_usec);
|
|
unlock_user(tv, tv_addr, 0);
|
|
} else
|
|
gemu_log("NULL");
|
|
}
|
|
#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);
|
|
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 = tswapl(*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)
|
|
{
|
|
if( ret == -1 ) {
|
|
gemu_log(" = -1 errno=%d (%s)\n", errno, target_strerror(errno));
|
|
} 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);
|
|
gemu_log(")\n");
|
|
}
|
|
#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;
|
|
|
|
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 ) {
|
|
gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret, target_strerror(-ret));
|
|
} else {
|
|
gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|