void lttv_event_to_string(LttvEvent *event, GString *a_string,
gboolean field_names, gboolean long_version)
{
GString* processInfos = g_string_new("");
GString* fields = g_string_new("");
GString* cpuId_str = g_string_new("");
getProcessInfosFromEvent(event, processInfos);
getFieldsFromEvent(event->bt_event, fields, field_names);
getCPUIdFromEvent(event, cpuId_str);
g_string_set_size(a_string,0);
if(long_version){
g_string_append_printf(a_string,"%" PRIu64 " %s: ",
bt_ctf_get_timestamp(event->bt_event),
bt_ctf_event_name(event->bt_event));
}
g_string_append_printf(a_string, "{ %s }", cpuId_str->str);
if (strcmp("", processInfos->str) < 0) {
g_string_append_printf(a_string, ", { %s }", processInfos->str);
}
if (strcmp("", fields->str) < 0) {
g_string_append_printf(a_string, ", { %s }", fields->str);
}
g_string_free(fields, TRUE);
g_string_free(processInfos, TRUE);
g_string_free(cpuId_str, TRUE);
}
static struct traceframe_info *
ctf_traceframe_info (struct target_ops *self)
{
struct traceframe_info *info = XCNEW (struct traceframe_info);
const char *name;
struct bt_iter_pos *pos;
gdb_assert (ctf_iter != NULL);
/* Save the current position. */
pos = bt_iter_get_pos (bt_ctf_get_iter (ctf_iter));
gdb_assert (pos->type == BT_SEEK_RESTORE);
do
{
struct bt_ctf_event *event
= bt_ctf_iter_read_event (ctf_iter);
name = bt_ctf_event_name (event);
if (name == NULL || strcmp (name, "register") == 0
|| strcmp (name, "frame") == 0)
;
else if (strcmp (name, "memory") == 0)
{
const struct bt_definition *scope
= bt_ctf_get_top_level_scope (event,
BT_EVENT_FIELDS);
const struct bt_definition *def;
struct mem_range *r;
r = VEC_safe_push (mem_range_s, info->memory, NULL);
def = bt_ctf_get_field (event, scope, "address");
r->start = bt_ctf_get_uint64 (def);
def = bt_ctf_get_field (event, scope, "length");
r->length = (uint16_t) bt_ctf_get_uint64 (def);
}
else if (strcmp (name, "tsv") == 0)
{
int vnum;
const struct bt_definition *scope
= bt_ctf_get_top_level_scope (event,
BT_EVENT_FIELDS);
const struct bt_definition *def;
def = bt_ctf_get_field (event, scope, "num");
vnum = (int) bt_ctf_get_int64 (def);
VEC_safe_push (int, info->tvars, vnum);
}
else
{
warning (_("Unhandled trace block type (%s) "
"while building trace frame info."),
name);
}
if (bt_iter_next (bt_ctf_get_iter (ctf_iter)) < 0)
break;
}
static int
ctf_get_trace_state_variable_value (struct target_ops *self,
int tsvnum, LONGEST *val)
{
struct bt_iter_pos *pos;
int found = 0;
gdb_assert (ctf_iter != NULL);
/* Save the current position. */
pos = bt_iter_get_pos (bt_ctf_get_iter (ctf_iter));
gdb_assert (pos->type == BT_SEEK_RESTORE);
/* Iterate through the traceframe's blocks, looking for 'V'
block. */
while (1)
{
struct bt_ctf_event *event
= bt_ctf_iter_read_event (ctf_iter);
const char *name = bt_ctf_event_name (event);
if (name == NULL || strcmp (name, "frame") == 0)
break;
else if (strcmp (name, "tsv") == 0)
{
const struct bt_definition *scope;
const struct bt_definition *def;
scope = bt_ctf_get_top_level_scope (event,
BT_EVENT_FIELDS);
def = bt_ctf_get_field (event, scope, "num");
if (tsvnum == (int32_t) bt_ctf_get_uint64 (def))
{
def = bt_ctf_get_field (event, scope, "val");
*val = bt_ctf_get_uint64 (def);
found = 1;
}
}
if (bt_iter_next (bt_ctf_get_iter (ctf_iter)) < 0)
break;
}
/* Restore the position. */
bt_iter_set_pos (bt_ctf_get_iter (ctf_iter), pos);
return found;
}
static CORE_ADDR
ctf_get_traceframe_address (void)
{
struct bt_ctf_event *event = NULL;
struct bt_iter_pos *pos;
CORE_ADDR addr = 0;
gdb_assert (ctf_iter != NULL);
pos = bt_iter_get_pos (bt_ctf_get_iter (ctf_iter));
gdb_assert (pos->type == BT_SEEK_RESTORE);
while (1)
{
const char *name;
struct bt_ctf_event *event1;
event1 = bt_ctf_iter_read_event (ctf_iter);
name = bt_ctf_event_name (event1);
if (name == NULL)
break;
else if (strcmp (name, "frame") == 0)
{
event = event1;
break;
}
if (bt_iter_next (bt_ctf_get_iter (ctf_iter)) < 0)
break;
}
if (event != NULL)
{
int tpnum = ctf_get_tpnum_from_frame_event (event);
struct tracepoint *tp
= get_tracepoint_by_number_on_target (tpnum);
if (tp && tp->base.loc)
addr = tp->base.loc->address;
}
/* Restore the position. */
bt_iter_set_pos (bt_ctf_get_iter (ctf_iter), pos);
return addr;
}
static int
ctf_trace_find (struct target_ops *self, enum trace_find_type type, int num,
CORE_ADDR addr1, CORE_ADDR addr2, int *tpp)
{
int ret = -1;
int tfnum = 0;
int found = 0;
struct bt_iter_pos pos;
if (num == -1)
{
if (tpp != NULL)
*tpp = -1;
return -1;
}
gdb_assert (ctf_iter != NULL);
/* Set iterator back to the start. */
bt_iter_set_pos (bt_ctf_get_iter (ctf_iter), start_pos);
while (1)
{
int id;
struct bt_ctf_event *event;
const char *name;
event = bt_ctf_iter_read_event (ctf_iter);
name = bt_ctf_event_name (event);
if (event == NULL || name == NULL)
break;
if (strcmp (name, "frame") == 0)
{
CORE_ADDR tfaddr;
if (type == tfind_number)
{
/* Looking for a specific trace frame. */
if (tfnum == num)
found = 1;
}
else
{
/* Start from the _next_ trace frame. */
if (tfnum > get_traceframe_number ())
{
switch (type)
{
case tfind_tp:
{
struct tracepoint *tp = get_tracepoint (num);
if (tp != NULL
&& (tp->number_on_target
== ctf_get_tpnum_from_frame_event (event)))
found = 1;
break;
}
case tfind_pc:
tfaddr = ctf_get_traceframe_address ();
if (tfaddr == addr1)
found = 1;
break;
case tfind_range:
tfaddr = ctf_get_traceframe_address ();
if (addr1 <= tfaddr && tfaddr <= addr2)
found = 1;
break;
case tfind_outside:
tfaddr = ctf_get_traceframe_address ();
if (!(addr1 <= tfaddr && tfaddr <= addr2))
found = 1;
break;
default:
internal_error (__FILE__, __LINE__, _("unknown tfind type"));
}
}
}
if (found)
{
if (tpp != NULL)
*tpp = ctf_get_tpnum_from_frame_event (event);
/* Skip the event "frame". */
bt_iter_next (bt_ctf_get_iter (ctf_iter));
return tfnum;
}
tfnum++;
}
if (bt_iter_next (bt_ctf_get_iter (ctf_iter)) < 0)
break;
}
return -1;
}
static enum target_xfer_status
ctf_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf, ULONGEST offset,
ULONGEST len, ULONGEST *xfered_len)
{
/* We're only doing regular memory for now. */
if (object != TARGET_OBJECT_MEMORY)
return -1;
if (readbuf == NULL)
error (_("ctf_xfer_partial: trace file is read-only"));
if (get_traceframe_number () != -1)
{
struct bt_iter_pos *pos;
int i = 0;
enum target_xfer_status res;
/* Records the lowest available address of all blocks that
intersects the requested range. */
ULONGEST low_addr_available = 0;
gdb_assert (ctf_iter != NULL);
/* Save the current position. */
pos = bt_iter_get_pos (bt_ctf_get_iter (ctf_iter));
gdb_assert (pos->type == BT_SEEK_RESTORE);
/* Iterate through the traceframe's blocks, looking for
memory. */
while (1)
{
ULONGEST amt;
uint64_t maddr;
uint16_t mlen;
enum bfd_endian byte_order
= gdbarch_byte_order (target_gdbarch ());
const struct bt_definition *scope;
const struct bt_definition *def;
struct bt_ctf_event *event
= bt_ctf_iter_read_event (ctf_iter);
const char *name = bt_ctf_event_name (event);
if (name == NULL || strcmp (name, "frame") == 0)
break;
else if (strcmp (name, "memory") != 0)
{
if (bt_iter_next (bt_ctf_get_iter (ctf_iter)) < 0)
break;
continue;
}
scope = bt_ctf_get_top_level_scope (event,
BT_EVENT_FIELDS);
def = bt_ctf_get_field (event, scope, "address");
maddr = bt_ctf_get_uint64 (def);
def = bt_ctf_get_field (event, scope, "length");
mlen = (uint16_t) bt_ctf_get_uint64 (def);
/* If the block includes the first part of the desired
range, return as much it has; GDB will re-request the
remainder, which might be in a different block of this
trace frame. */
if (maddr <= offset && offset < (maddr + mlen))
{
const struct bt_definition *array
= bt_ctf_get_field (event, scope, "contents");
const struct bt_declaration *decl
= bt_ctf_get_decl_from_def (array);
gdb_byte *contents;
int k;
contents = xmalloc (mlen);
for (k = 0; k < mlen; k++)
{
const struct bt_definition *element
= bt_ctf_get_index (event, array, k);
contents[k] = (gdb_byte) bt_ctf_get_uint64 (element);
}
amt = (maddr + mlen) - offset;
if (amt > len)
amt = len;
memcpy (readbuf, &contents[offset - maddr], amt);
xfree (contents);
/* Restore the position. */
bt_iter_set_pos (bt_ctf_get_iter (ctf_iter), pos);
if (amt == 0)
return TARGET_XFER_EOF;
else
{
*xfered_len = amt;
return TARGET_XFER_OK;
}
}
if (offset < maddr && maddr < (offset + len))
if (low_addr_available == 0 || low_addr_available > maddr)
low_addr_available = maddr;
if (bt_iter_next (bt_ctf_get_iter (ctf_iter)) < 0)
break;
}
/* Restore the position. */
bt_iter_set_pos (bt_ctf_get_iter (ctf_iter), pos);
/* Requested memory is unavailable in the context of traceframes,
and this address falls within a read-only section, fallback
to reading from executable, up to LOW_ADDR_AVAILABLE */
if (offset < low_addr_available)
len = min (len, low_addr_available - offset);
res = exec_read_partial_read_only (readbuf, offset, len, xfered_len);
if (res == TARGET_XFER_OK)
return TARGET_XFER_OK;
else
{
/* No use trying further, we know some memory starting
at MEMADDR isn't available. */
*xfered_len = len;
return TARGET_XFER_UNAVAILABLE;
}
}
else
{
/* Fallback to reading from read-only sections. */
return section_table_read_available_memory (readbuf, offset, len, xfered_len);
}
}
static void
ctf_fetch_registers (struct target_ops *ops,
struct regcache *regcache, int regno)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct bt_ctf_event *event = NULL;
struct bt_iter_pos *pos;
/* An uninitialized reg size says we're not going to be
successful at getting register blocks. */
if (trace_regblock_size == 0)
return;
gdb_assert (ctf_iter != NULL);
/* Save the current position. */
pos = bt_iter_get_pos (bt_ctf_get_iter (ctf_iter));
gdb_assert (pos->type == BT_SEEK_RESTORE);
while (1)
{
const char *name;
struct bt_ctf_event *event1;
event1 = bt_ctf_iter_read_event (ctf_iter);
name = bt_ctf_event_name (event1);
if (name == NULL || strcmp (name, "frame") == 0)
break;
else if (strcmp (name, "register") == 0)
{
event = event1;
break;
}
if (bt_iter_next (bt_ctf_get_iter (ctf_iter)) < 0)
break;
}
/* Restore the position. */
bt_iter_set_pos (bt_ctf_get_iter (ctf_iter), pos);
if (event != NULL)
{
int offset, regsize, regn;
const struct bt_definition *scope
= bt_ctf_get_top_level_scope (event,
BT_EVENT_FIELDS);
const struct bt_definition *array
= bt_ctf_get_field (event, scope, "contents");
gdb_byte *regs = (gdb_byte *) bt_ctf_get_char_array (array);
/* Assume the block is laid out in GDB register number order,
each register with the size that it has in GDB. */
offset = 0;
for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
{
regsize = register_size (gdbarch, regn);
/* Make sure we stay within block bounds. */
if (offset + regsize >= trace_regblock_size)
break;
if (regcache_register_status (regcache, regn) == REG_UNKNOWN)
{
if (regno == regn)
{
regcache_raw_supply (regcache, regno, regs + offset);
break;
}
else if (regno == -1)
{
regcache_raw_supply (regcache, regn, regs + offset);
}
}
offset += regsize;
}
}
else
tracefile_fetch_registers (regcache, regno);
}
const char *lttv_traceset_get_name_from_event(LttvEvent *event)
{
return bt_ctf_event_name(event->bt_event);
}
void lttv_event_get_name(LttvEvent *event,GString *a_string)
{
g_string_set_size(a_string,0);
g_string_append_printf(a_string, " %s", bt_ctf_event_name(event->bt_event));
}
/*
* hook on each event to check the timestamp and refresh the display if
* necessary
*/
enum bt_cb_ret textdump(struct bt_ctf_event *call_data, void *private_data)
{
unsigned long timestamp;
uint64_t delta;
struct tm start;
uint64_t ts_nsec_start;
int pid, cpu_id, tid, ret, lookup, current_syscall = 0;
const struct bt_definition *scope;
const char *hostname, *procname;
struct cputime *cpu;
char *from_syscall = NULL;
int syscall_exit = 0;
timestamp = bt_ctf_get_timestamp(call_data);
/* can happen in network live when tracing is idle */
if (timestamp < last_event_ts)
goto end_stop;
last_event_ts = timestamp;
start = format_timestamp(timestamp);
ts_nsec_start = timestamp % NSEC_PER_SEC;
pid = get_context_pid(call_data);
if (pid == -1ULL && opt_tid) {
goto error;
}
tid = get_context_tid(call_data);
hostname = get_context_hostname(call_data);
if (opt_child)
lookup = pid;
else
lookup = tid;
if (opt_tid || opt_procname || opt_exec_name) {
if (!lookup_filter_tid_list(lookup)) {
/* To display when a process of ours in getting scheduled in */
if (strcmp(bt_ctf_event_name(call_data), "sched_switch") == 0) {
int next_tid;
scope = bt_ctf_get_top_level_scope(call_data,
BT_EVENT_FIELDS);
next_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data,
scope, "_next_tid"));
if (bt_ctf_field_get_error()) {
fprintf(stderr, "Missing next_tid field\n");
goto error;
}
if (!lookup_filter_tid_list(next_tid)) {
if (!opt_all)
goto end;
} else {
if (opt_all)
fprintf(output, "%c[1m", 27);
}
} else if (!opt_all) {
goto end;
}
} else {
if (opt_all)
fprintf(output, "%c[1m", 27);
}
}
if (((strncmp(bt_ctf_event_name(call_data),
"exit_syscall", 12)) == 0) ||
((strncmp(bt_ctf_event_name(call_data),
"syscall_exit", 12)) == 0)) {
syscall_exit = 1;
}
if (last_syscall && !syscall_exit) {
last_syscall = NULL;
fprintf(output, " ...interrupted...\n");
}
cpu_id = get_cpu_id(call_data);
procname = get_context_comm(call_data);
if ((strncmp(bt_ctf_event_name(call_data), "sys_", 4) == 0) ||
(strncmp(bt_ctf_event_name(call_data), "syscall_entry", 13) == 0)){
cpu = get_cpu(cpu_id);
cpu->current_syscall = g_new0(struct syscall, 1);
cpu->current_syscall->name = strdup(bt_ctf_event_name(call_data));
cpu->current_syscall->ts_start = timestamp;
cpu->current_syscall->cpu_id = cpu_id;
last_syscall = cpu->current_syscall;
current_syscall = 1;
} else if (syscall_exit) {
