static void _stp_stack_user_sprint(char *str, int size, struct context* c,
int sym_flags)
{
/* To get an hex string, we use a simple trick.
* First flush the print buffer,
* then call _stp_stack_print,
* then copy the result into the output string
* and clear the print buffer. */
_stp_pbuf *pb = per_cpu_ptr(Stp_pbuf, smp_processor_id());
_stp_print_flush();
_stp_stack_user_print(c, sym_flags);
strlcpy(str, pb->buf, size < (int)pb->len ? size : (int)pb->len);
pb->len = 0;
}
static void _stp_vlog (enum code type, const char *func, int line, const char *fmt, va_list args)
{
int num;
char *buf = per_cpu_ptr(Stp_lbuf, get_cpu());
int start = 0;
if (type == DBUG) {
start = _stp_snprintf(buf, STP_LOG_BUF_LEN, "%s:%d: ", func, line);
} else if (type == WARN) {
/* This strcpy() is OK, since we know STP_LOG_BUF_LEN
* is > sizeof(WARN_STRING). */
strcpy (buf, WARN_STRING);
start = sizeof(WARN_STRING) - 1;
} else if (type == ERROR) {
/* This strcpy() is OK, since we know STP_LOG_BUF_LEN
* is > sizeof(ERR_STRING) (which is < sizeof(WARN_STRING). */
strcpy (buf, ERR_STRING);
start = sizeof(ERR_STRING) - 1;
}
num = vscnprintf (buf + start, STP_LOG_BUF_LEN - start - 1, fmt, args);
if (num + start) {
if (buf[num + start - 1] != '\n') {
buf[num + start] = '\n';
num++;
buf[num + start] = '\0';
}
#ifdef STAP_DEBUG_PRINTK
if (type == DBUG) printk (KERN_DEBUG "%s", buf);
else if (type == WARN) printk (KERN_WARNING "%s", buf);
else if (type == ERROR) printk (KERN_ERR "%s", buf);
else printk (KERN_INFO "%s", buf);
#else
if (type != DBUG) {
_stp_ctl_send(STP_OOB_DATA, buf, start + num + 1);
} else {
_stp_print(buf);
_stp_print_flush();
}
#endif
}
put_cpu();
}