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#include <stdio.h>
#include <errno.h>
#include <sys/select.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/syscall.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_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, s_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, s_addr, 0);
}
}
gemu_log("NULL})");
}
/*
* 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, 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
/*
* An array of all of the syscalls we know about
*/
static const struct syscallname freebsd_scnames[] = {
#include "freebsd/strace.list"
};
static const struct syscallname netbsd_scnames[] = {
#include "netbsd/strace.list"
};
static const struct syscallname openbsd_scnames[] = {
#include "openbsd/strace.list"
};
static void
print_syscall(int num, const struct syscallname *scnames, unsigned int nscnames,
abi_long arg1, abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5, abi_long arg6)
{
unsigned 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 < nscnames; 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);
}
static void
print_syscall_ret(int num, abi_long ret, const struct syscallname *scnames,
unsigned int nscnames)
{
unsigned int i;
for (i = 0; i < nscnames; 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,
strerror(-ret));
} else {
gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
}
}
break;
}
}
/*
* The public interface to this module.
*/
void
print_freebsd_syscall(int num,
abi_long arg1, abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5, abi_long arg6)
{
print_syscall(num, freebsd_scnames, ARRAY_SIZE(freebsd_scnames),
arg1, arg2, arg3, arg4, arg5, arg6);
}
void
print_freebsd_syscall_ret(int num, abi_long ret)
{
print_syscall_ret(num, ret, freebsd_scnames, ARRAY_SIZE(freebsd_scnames));
}
void
print_netbsd_syscall(int num,
abi_long arg1, abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5, abi_long arg6)
{
print_syscall(num, netbsd_scnames, ARRAY_SIZE(netbsd_scnames),
arg1, arg2, arg3, arg4, arg5, arg6);
}
void
print_netbsd_syscall_ret(int num, abi_long ret)
{
print_syscall_ret(num, ret, netbsd_scnames, ARRAY_SIZE(netbsd_scnames));
}
void
print_openbsd_syscall(int num,
abi_long arg1, abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5, abi_long arg6)
{
print_syscall(num, openbsd_scnames, ARRAY_SIZE(openbsd_scnames),
arg1, arg2, arg3, arg4, arg5, arg6);
}
void
print_openbsd_syscall_ret(int num, abi_long ret)
{
print_syscall_ret(num, ret, openbsd_scnames, ARRAY_SIZE(openbsd_scnames));
}
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