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-rw-r--r--gdb/remote.c317
1 files changed, 317 insertions, 0 deletions
diff --git a/gdb/remote.c b/gdb/remote.c
index 6fb3a01..55f2fc3 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -14106,6 +14106,323 @@ remote_target::can_use_agent ()
return (m_features.packet_support (PACKET_QAgent) != PACKET_DISABLE);
}
+#if defined (HAVE_LIBEXPAT)
+
+/* Check the btrace document version. */
+
+static void
+check_xml_btrace_version (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
+{
+ const char *version
+ = (const char *) xml_find_attribute (attributes, "version")->value.get ();
+
+ if (strcmp (version, "1.0") != 0)
+ gdb_xml_error (parser, _("Unsupported btrace version: \"%s\""), version);
+}
+
+/* Parse a btrace "block" xml record. */
+
+static void
+parse_xml_btrace_block (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
+{
+ struct btrace_data *btrace;
+ ULONGEST *begin, *end;
+
+ btrace = (struct btrace_data *) user_data;
+
+ switch (btrace->format)
+ {
+ case BTRACE_FORMAT_BTS:
+ break;
+
+ case BTRACE_FORMAT_NONE:
+ btrace->format = BTRACE_FORMAT_BTS;
+ btrace->variant.bts.blocks = new std::vector<btrace_block>;
+ break;
+
+ default:
+ gdb_xml_error (parser, _("Btrace format error."));
+ }
+
+ begin = (ULONGEST *) xml_find_attribute (attributes, "begin")->value.get ();
+ end = (ULONGEST *) xml_find_attribute (attributes, "end")->value.get ();
+ btrace->variant.bts.blocks->emplace_back (*begin, *end);
+}
+
+/* Parse a "raw" xml record. */
+
+static void
+parse_xml_raw (struct gdb_xml_parser *parser, const char *body_text,
+ gdb_byte **pdata, size_t *psize)
+{
+ gdb_byte *bin;
+ size_t len, size;
+
+ len = strlen (body_text);
+ if (len % 2 != 0)
+ gdb_xml_error (parser, _("Bad raw data size."));
+
+ size = len / 2;
+
+ gdb::unique_xmalloc_ptr<gdb_byte> data ((gdb_byte *) xmalloc (size));
+ bin = data.get ();
+
+ /* We use hex encoding - see gdbsupport/rsp-low.h. */
+ while (len > 0)
+ {
+ char hi, lo;
+
+ hi = *body_text++;
+ lo = *body_text++;
+
+ if (hi == 0 || lo == 0)
+ gdb_xml_error (parser, _("Bad hex encoding."));
+
+ *bin++ = fromhex (hi) * 16 + fromhex (lo);
+ len -= 2;
+ }
+
+ *pdata = data.release ();
+ *psize = size;
+}
+
+/* Parse a btrace pt-config "cpu" xml record. */
+
+static void
+parse_xml_btrace_pt_config_cpu (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
+{
+ struct btrace_data *btrace;
+ const char *vendor;
+ ULONGEST *family, *model, *stepping;
+
+ vendor
+ = (const char *) xml_find_attribute (attributes, "vendor")->value.get ();
+ family
+ = (ULONGEST *) xml_find_attribute (attributes, "family")->value.get ();
+ model
+ = (ULONGEST *) xml_find_attribute (attributes, "model")->value.get ();
+ stepping
+ = (ULONGEST *) xml_find_attribute (attributes, "stepping")->value.get ();
+
+ btrace = (struct btrace_data *) user_data;
+
+ if (strcmp (vendor, "GenuineIntel") == 0)
+ btrace->variant.pt.config.cpu.vendor = CV_INTEL;
+
+ btrace->variant.pt.config.cpu.family = *family;
+ btrace->variant.pt.config.cpu.model = *model;
+ btrace->variant.pt.config.cpu.stepping = *stepping;
+}
+
+/* Parse a btrace pt "raw" xml record. */
+
+static void
+parse_xml_btrace_pt_raw (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data, const char *body_text)
+{
+ struct btrace_data *btrace;
+
+ btrace = (struct btrace_data *) user_data;
+ parse_xml_raw (parser, body_text, &btrace->variant.pt.data,
+ &btrace->variant.pt.size);
+}
+
+/* Parse a btrace "pt" xml record. */
+
+static void
+parse_xml_btrace_pt (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
+{
+ struct btrace_data *btrace;
+
+ btrace = (struct btrace_data *) user_data;
+ btrace->format = BTRACE_FORMAT_PT;
+ btrace->variant.pt.config.cpu.vendor = CV_UNKNOWN;
+ btrace->variant.pt.data = NULL;
+ btrace->variant.pt.size = 0;
+}
+
+static const struct gdb_xml_attribute block_attributes[] = {
+ { "begin", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { "end", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_attribute btrace_pt_config_cpu_attributes[] = {
+ { "vendor", GDB_XML_AF_NONE, NULL, NULL },
+ { "family", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { "model", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { "stepping", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element btrace_pt_config_children[] = {
+ { "cpu", btrace_pt_config_cpu_attributes, NULL, GDB_XML_EF_OPTIONAL,
+ parse_xml_btrace_pt_config_cpu, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element btrace_pt_children[] = {
+ { "pt-config", NULL, btrace_pt_config_children, GDB_XML_EF_OPTIONAL, NULL,
+ NULL },
+ { "raw", NULL, NULL, GDB_XML_EF_OPTIONAL, NULL, parse_xml_btrace_pt_raw },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_attribute btrace_attributes[] = {
+ { "version", GDB_XML_AF_NONE, NULL, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element btrace_children[] = {
+ { "block", block_attributes, NULL,
+ GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL, parse_xml_btrace_block, NULL },
+ { "pt", NULL, btrace_pt_children, GDB_XML_EF_OPTIONAL, parse_xml_btrace_pt,
+ NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element btrace_elements[] = {
+ { "btrace", btrace_attributes, btrace_children, GDB_XML_EF_NONE,
+ check_xml_btrace_version, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+#endif /* defined (HAVE_LIBEXPAT) */
+
+/* Parse a branch trace xml document XML into DATA. */
+
+static void
+parse_xml_btrace (struct btrace_data *btrace, const char *buffer)
+{
+#if defined (HAVE_LIBEXPAT)
+
+ int errcode;
+ btrace_data result;
+ result.format = BTRACE_FORMAT_NONE;
+
+ errcode = gdb_xml_parse_quick (_("btrace"), "btrace.dtd", btrace_elements,
+ buffer, &result);
+ if (errcode != 0)
+ error (_("Error parsing branch trace."));
+
+ /* Keep parse results. */
+ *btrace = std::move (result);
+
+#else /* !defined (HAVE_LIBEXPAT) */
+
+ error (_("Cannot process branch trace. XML support was disabled at "
+ "compile time."));
+
+#endif /* !defined (HAVE_LIBEXPAT) */
+}
+
+#if defined (HAVE_LIBEXPAT)
+
+/* Parse a btrace-conf "bts" xml record. */
+
+static void
+parse_xml_btrace_conf_bts (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
+{
+ struct btrace_config *conf;
+ struct gdb_xml_value *size;
+
+ conf = (struct btrace_config *) user_data;
+ conf->format = BTRACE_FORMAT_BTS;
+ conf->bts.size = 0;
+
+ size = xml_find_attribute (attributes, "size");
+ if (size != NULL)
+ conf->bts.size = (unsigned int) *(ULONGEST *) size->value.get ();
+}
+
+/* Parse a btrace-conf "pt" xml record. */
+
+static void
+parse_xml_btrace_conf_pt (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
+{
+ struct btrace_config *conf;
+ struct gdb_xml_value *size;
+
+ conf = (struct btrace_config *) user_data;
+ conf->format = BTRACE_FORMAT_PT;
+ conf->pt.size = 0;
+
+ size = xml_find_attribute (attributes, "size");
+ if (size != NULL)
+ conf->pt.size = (unsigned int) *(ULONGEST *) size->value.get ();
+}
+
+static const struct gdb_xml_attribute btrace_conf_pt_attributes[] = {
+ { "size", GDB_XML_AF_OPTIONAL, gdb_xml_parse_attr_ulongest, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_attribute btrace_conf_bts_attributes[] = {
+ { "size", GDB_XML_AF_OPTIONAL, gdb_xml_parse_attr_ulongest, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element btrace_conf_children[] = {
+ { "bts", btrace_conf_bts_attributes, NULL, GDB_XML_EF_OPTIONAL,
+ parse_xml_btrace_conf_bts, NULL },
+ { "pt", btrace_conf_pt_attributes, NULL, GDB_XML_EF_OPTIONAL,
+ parse_xml_btrace_conf_pt, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_attribute btrace_conf_attributes[] = {
+ { "version", GDB_XML_AF_NONE, NULL, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element btrace_conf_elements[] = {
+ { "btrace-conf", btrace_conf_attributes, btrace_conf_children,
+ GDB_XML_EF_NONE, NULL, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+#endif /* defined (HAVE_LIBEXPAT) */
+
+/* Parse a branch trace configuration xml document XML into CONF. */
+
+static void
+parse_xml_btrace_conf (struct btrace_config *conf, const char *xml)
+{
+#if defined (HAVE_LIBEXPAT)
+
+ int errcode;
+ errcode = gdb_xml_parse_quick (_("btrace-conf"), "btrace-conf.dtd",
+ btrace_conf_elements, xml, conf);
+ if (errcode != 0)
+ error (_("Error parsing branch trace configuration."));
+
+#else /* !defined (HAVE_LIBEXPAT) */
+
+ error (_("Cannot process the branch trace configuration. XML support "
+ "was disabled at compile time."));
+
+#endif /* !defined (HAVE_LIBEXPAT) */
+}
+
struct btrace_target_info
{
/* The ptid of the traced thread. */
generated by cgit v1.1 at 2025-01-03 16:06:47 +0000