#include <assert.h>
#include <common/compat/string.h>
#include <common/error.h>
+#include <common/hashtable/hashtable.h>
+#include <common/hashtable/utils.h>
#include <common/macros.h>
-#include <common/payload.h>
+#include <common/mi-lttng.h>
#include <common/payload-view.h>
+#include <common/payload.h>
#include <fcntl.h>
#include <lttng/constant.h>
#include <lttng/userspace-probe-internal.h>
struct lttng_userspace_probe_location *location,
struct fd_handle *binary_fd_handle);
+static
+enum lttng_error_code lttng_userspace_probe_location_lookup_method_mi_serialize(
+ const struct lttng_userspace_probe_location_lookup_method
+ *method,
+ struct mi_writer *writer);
+
+static
+enum lttng_error_code lttng_userspace_probe_location_tracepoint_mi_serialize(
+ const struct lttng_userspace_probe_location *location,
+ struct mi_writer *writer);
+
+static
+enum lttng_error_code lttng_userspace_probe_location_function_mi_serialize(
+ const struct lttng_userspace_probe_location *location,
+ struct mi_writer *writer);
+
enum lttng_userspace_probe_location_lookup_method_type
lttng_userspace_probe_location_lookup_method_get_type(
const struct lttng_userspace_probe_location_lookup_method *lookup_method)
return is_equal;
}
+static unsigned long lttng_userspace_probe_location_function_hash(
+ const struct lttng_userspace_probe_location *location)
+{
+ unsigned long hash = hash_key_ulong(
+ (void *) LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION,
+ lttng_ht_seed);
+ struct lttng_userspace_probe_location_function *function_location =
+ container_of(location, typeof(*function_location),
+ parent);
+
+ hash ^= hash_key_str(function_location->function_name, lttng_ht_seed);
+ hash ^= hash_key_str(function_location->binary_path, lttng_ht_seed);
+ /*
+ * No need to hash on the fd. Worst comes to worse,
+ * the equal function will discriminate.
+ */
+ return hash;
+}
+
static bool lttng_userspace_probe_location_function_is_equal(
const struct lttng_userspace_probe_location *_a,
const struct lttng_userspace_probe_location *_b)
ret->lookup_method = lookup_method;
ret->type = LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION;
ret->equal = lttng_userspace_probe_location_function_is_equal;
+ ret->hash = lttng_userspace_probe_location_function_hash;
goto end;
error:
return ret;
}
+static unsigned long lttng_userspace_probe_location_tracepoint_hash(
+ const struct lttng_userspace_probe_location *location)
+{
+ unsigned long hash = hash_key_ulong(
+ (void *) LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT,
+ lttng_ht_seed);
+ struct lttng_userspace_probe_location_tracepoint *tp_location =
+ container_of(location, typeof(*tp_location), parent);
+
+ hash ^= hash_key_str(tp_location->probe_name, lttng_ht_seed);
+ hash ^= hash_key_str(tp_location->provider_name, lttng_ht_seed);
+ hash ^= hash_key_str(tp_location->binary_path, lttng_ht_seed);
+ /*
+ * No need to hash on the fd. Worst comes to worse,
+ * the equal function will discriminate.
+ */
+ return hash;
+}
+
static bool lttng_userspace_probe_location_tracepoint_is_equal(
const struct lttng_userspace_probe_location *_a,
const struct lttng_userspace_probe_location *_b)
ret->lookup_method = lookup_method;
ret->type = LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT;
ret->equal = lttng_userspace_probe_location_tracepoint_is_equal;
+ ret->hash = lttng_userspace_probe_location_tracepoint_hash;
goto end;
error:
binary_path_src = function_name_src +
location_function_comm->function_name_len;
- if (function_name_src[location_function_comm->function_name_len - 1] != '\0') {
+ if (!lttng_buffer_view_contains_string(&view->buffer, function_name_src,
+ location_function_comm->function_name_len)) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
- if (binary_path_src[location_function_comm->binary_path_len - 1] != '\0') {
+
+ if (!lttng_buffer_view_contains_string(&view->buffer, binary_path_src,
+ location_function_comm->binary_path_len)) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
binary_path_src = provider_name_src +
location_tracepoint_comm->provider_name_len;
- if (probe_name_src[location_tracepoint_comm->probe_name_len - 1] != '\0') {
+ if (!lttng_buffer_view_contains_string(&view->buffer, probe_name_src,
+ location_tracepoint_comm->probe_name_len)) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
- if (provider_name_src[location_tracepoint_comm->provider_name_len - 1] != '\0') {
+ if (!lttng_buffer_view_contains_string(&view->buffer, provider_name_src,
+ location_tracepoint_comm->provider_name_len)) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
- if (binary_path_src[location_tracepoint_comm->binary_path_len - 1] != '\0') {
+ if (!lttng_buffer_view_contains_string(&view->buffer, binary_path_src,
+ location_tracepoint_comm->binary_path_len)) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
struct lttng_userspace_probe_location **location)
{
struct lttng_userspace_probe_location_lookup_method *lookup_method;
- struct lttng_userspace_probe_location_comm *probe_location_comm;
enum lttng_userspace_probe_location_type type;
int consumed = 0;
int ret;
+ struct lttng_userspace_probe_location_comm *probe_location_comm;
+ struct lttng_payload_view probe_location_comm_view =
+ lttng_payload_view_from_view(
+ view, 0, sizeof(*probe_location_comm));
assert(view);
assert(location);
lookup_method = NULL;
- if (view->buffer.size <= sizeof(*probe_location_comm)) {
+ if (!lttng_payload_view_is_valid(&probe_location_comm_view)) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
- probe_location_comm = (typeof(probe_location_comm)) view->buffer.data;
+ probe_location_comm = (typeof(probe_location_comm)) probe_location_comm_view.buffer.data;
type = (enum lttng_userspace_probe_location_type) probe_location_comm->type;
consumed += sizeof(*probe_location_comm);
end:
return is_equal;
}
+
+LTTNG_HIDDEN
+unsigned long lttng_userspace_probe_location_hash(
+ const struct lttng_userspace_probe_location *location)
+{
+ return location->hash(location);
+}
+
+LTTNG_HIDDEN
+enum lttng_error_code lttng_userspace_probe_location_mi_serialize(
+ const struct lttng_userspace_probe_location *location,
+ struct mi_writer *writer)
+{
+ typedef enum lttng_error_code (*mi_fp)(
+ const struct lttng_userspace_probe_location *,
+ struct mi_writer *);
+
+ int ret;
+ enum lttng_error_code ret_code;
+ mi_fp mi_function = NULL;
+
+ assert(location);
+ assert(writer);
+
+ switch (lttng_userspace_probe_location_get_type(location)) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION:
+ mi_function = lttng_userspace_probe_location_function_mi_serialize;
+ break;
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT:
+ mi_function = lttng_userspace_probe_location_tracepoint_mi_serialize;
+ break;
+ default:
+ abort();
+ break;
+ }
+
+ /* Open userspace probe location element. */
+ ret = mi_lttng_writer_open_element(
+ writer, mi_lttng_element_userspace_probe_location);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Underlying user space probe location. */
+ ret_code = mi_function(location, writer);
+ if (ret_code != LTTNG_OK) {
+ goto end;
+ }
+
+ /* Close userspace probe location element. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto mi_error;
+ }
+
+ ret_code = LTTNG_OK;
+ goto end;
+
+mi_error:
+ ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+ return ret_code;
+}
+
+enum lttng_error_code lttng_userspace_probe_location_lookup_method_mi_serialize(
+ const struct lttng_userspace_probe_location_lookup_method
+ *method,
+ struct mi_writer *writer)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ const char *type_element_str;
+
+ assert(method);
+ assert(writer);
+
+ switch (lttng_userspace_probe_location_lookup_method_get_type(method)) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_DEFAULT:
+ type_element_str =
+ mi_lttng_element_userspace_probe_location_lookup_method_function_default;
+ break;
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_ELF:
+ type_element_str =
+ mi_lttng_element_userspace_probe_location_lookup_method_function_elf;
+ break;
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_TRACEPOINT_SDT:
+ type_element_str =
+ mi_lttng_element_userspace_probe_location_lookup_method_tracepoint_sdt;
+ break;
+ default:
+ abort();
+ break;
+ }
+
+ /* Open userspace probe location lookup method element. */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_userspace_probe_location_lookup_method);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* User space probe location lookup method empty element. */
+ ret = mi_lttng_writer_open_element(writer, type_element_str);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Close userspace probe location lookup method element. */
+ ret = mi_lttng_close_multi_element(writer, 2);
+ if (ret) {
+ goto mi_error;
+ }
+
+ ret_code = LTTNG_OK;
+ goto end;
+
+mi_error:
+ ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+ return ret_code;
+}
+
+static enum lttng_error_code lttng_userspace_probe_location_tracepoint_mi_serialize(
+ const struct lttng_userspace_probe_location *location,
+ struct mi_writer *writer)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ const char *probe_name = NULL;
+ const char *provider_name = NULL;
+ const char *binary_path = NULL;
+ const struct lttng_userspace_probe_location_lookup_method
+ *lookup_method = NULL;
+
+ assert(location);
+ assert(writer);
+
+ probe_name = lttng_userspace_probe_location_tracepoint_get_probe_name(
+ location);
+ provider_name = lttng_userspace_probe_location_tracepoint_get_provider_name(
+ location);
+ binary_path = lttng_userspace_probe_location_tracepoint_get_binary_path(
+ location);
+ lookup_method = lttng_userspace_probe_location_tracepoint_get_lookup_method(
+ location);
+
+ /* Open userspace probe location tracepoint element. */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_userspace_probe_location_tracepoint);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Probe name. */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_userspace_probe_location_tracepoint_probe_name,
+ probe_name);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Provider name. */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_userspace_probe_location_tracepoint_provider_name,
+ provider_name);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Binary path. */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_userspace_probe_location_binary_path,
+ binary_path);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* The lookup method. */
+ ret_code = lttng_userspace_probe_location_lookup_method_mi_serialize(
+ lookup_method, writer);
+ if (ret_code != LTTNG_OK) {
+ goto end;
+ }
+
+ /* Close userspace probe location tracepoint. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto mi_error;
+ }
+
+ ret_code = LTTNG_OK;
+ goto end;
+
+mi_error:
+ ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+ return ret_code;
+}
+
+static enum lttng_error_code lttng_userspace_probe_location_function_mi_serialize(
+ const struct lttng_userspace_probe_location *location,
+ struct mi_writer *writer)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ const char *function_name = NULL;
+ const char *binary_path = NULL;
+ const char *instrumentation_type_str = NULL;
+ enum lttng_userspace_probe_location_function_instrumentation_type
+ instrumentation_type;
+ const struct lttng_userspace_probe_location_lookup_method
+ *lookup_method = NULL;
+
+ assert(location);
+ assert(writer);
+
+ function_name = lttng_userspace_probe_location_function_get_function_name(
+ location);
+ binary_path = lttng_userspace_probe_location_function_get_binary_path(
+ location);
+ instrumentation_type =
+ lttng_userspace_probe_location_function_get_instrumentation_type(
+ location);
+ lookup_method = lttng_userspace_probe_location_function_get_lookup_method(
+ location);
+
+ switch (instrumentation_type) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_FUNCTION_INSTRUMENTATION_TYPE_ENTRY:
+ instrumentation_type_str =
+ mi_lttng_userspace_probe_location_function_instrumentation_type_entry;
+ break;
+ default:
+ abort();
+ break;
+ }
+
+ /* Open userspace probe location function element. */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_userspace_probe_location_function);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Function name. */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_userspace_probe_location_function_name,
+ function_name);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Binary path. */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_userspace_probe_location_binary_path,
+ binary_path);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Instrumentation type. */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_userspace_probe_location_function_instrumentation_type,
+ instrumentation_type_str);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* The lookup method. */
+ ret_code = lttng_userspace_probe_location_lookup_method_mi_serialize(
+ lookup_method, writer);
+ if (ret_code != LTTNG_OK) {
+ goto end;
+ }
+
+ /* Close userspace probe location function element. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto mi_error;
+ }
+
+ ret_code = LTTNG_OK;
+ goto end;
+
+mi_error:
+ ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+ return ret_code;
+}
projects / lttng-tools.git / blobdiff