rtos: Freescale MQX rtos support

[openocd.git] / src / rtos / rtos.c

diff --git a/src/rtos/rtos.c b/src/rtos/rtos.c
index 735c1065b576ccde05586e6f00c1c859ec1d3467..f14e53890c16cb1aa47b9e1e787478ef795c5ffd 100644 (file)
--- a/src/rtos/rtos.c
+++ b/src/rtos/rtos.c
@@ -35,6 +35,7 @@ extern struct rtos_type eCos_rtos;
 extern struct rtos_type Linux_os;
 extern struct rtos_type ChibiOS_rtos;
 extern struct rtos_type embKernel_rtos;
+extern struct rtos_type mqx_rtos;
 
 static struct rtos_type *rtos_types[] = {
        &ThreadX_rtos,
@@ -43,6 +44,7 @@ static struct rtos_type *rtos_types[] = {
        &Linux_os,
        &ChibiOS_rtos,
        &embKernel_rtos,
+       &mqx_rtos,
        NULL
 };
 
@@ -147,7 +149,7 @@ int gdb_thread_packet(struct connection *connection, char const *packet, int pac
        return target->rtos->gdb_thread_packet(connection, packet, packet_size);
 }
 
-static const char *next_symbol(struct rtos *os, char *cur_symbol, uint64_t cur_addr)
+static symbol_table_elem_t *next_symbol(struct rtos *os, char *cur_symbol, uint64_t cur_addr)
 {
        symbol_table_elem_t *s;
 
@@ -155,18 +157,29 @@ static const char *next_symbol(struct rtos *os, char *cur_symbol, uint64_t cur_a
                os->type->get_symbol_list_to_lookup(&os->symbols);
 
        if (!cur_symbol[0])
-               return os->symbols[0].symbol_name;
+               return &os->symbols[0];
 
        for (s = os->symbols; s->symbol_name; s++)
                if (!strcmp(s->symbol_name, cur_symbol)) {
                        s->address = cur_addr;
                        s++;
-                       return s->symbol_name;
+                       return s;
                }
 
        return NULL;
 }
 
+/* searches for 'symbol' in the lookup table for 'os' and returns TRUE,
+ * if 'symbol' is not declared optional */
+static bool is_symbol_mandatory(const struct rtos *os, const char *symbol)
+{
+       for (symbol_table_elem_t *s = os->symbols; s->symbol_name; ++s) {
+               if (!strcmp(s->symbol_name, symbol))
+                       return !s->optional;
+       }
+       return false;
+}
+
 /* rtos_qsymbol() processes and replies to all qSymbol packets from GDB.
  *
  * GDB sends a qSymbol:: packet (empty address, empty name) to notify
@@ -192,7 +205,7 @@ int rtos_qsymbol(struct connection *connection, char const *packet, int packet_s
        uint64_t addr = 0;
        size_t reply_len;
        char reply[GDB_BUFFER_SIZE], cur_sym[GDB_BUFFER_SIZE / 2] = "";
-       const char *next_sym;
+       symbol_table_elem_t *next_sym = NULL;
        struct target *target = get_target_from_connection(connection);
        struct rtos *os = target->rtos;
 
@@ -206,7 +219,9 @@ int rtos_qsymbol(struct connection *connection, char const *packet, int packet_s
        cur_sym[len] = 0;
 
        if ((strcmp(packet, "qSymbol::") != 0) &&               /* GDB is not offering symbol lookup for the first time */
-           (!sscanf(packet, "qSymbol:%" SCNx64 ":", &addr))) { /* GDB did not found an address for a symbol */
+           (!sscanf(packet, "qSymbol:%" SCNx64 ":", &addr)) && /* GDB did not find an address for a symbol */
+           is_symbol_mandatory(os, cur_sym)) {                                 /* the symbol is mandatory for this RTOS */
+
                /* GDB could not find an address for the previous symbol */
                if (!target->rtos_auto_detect) {
                        LOG_WARNING("RTOS %s not detected. (GDB could not find symbol \'%s\')", os->type->name, cur_sym);
@@ -224,7 +239,7 @@ int rtos_qsymbol(struct connection *connection, char const *packet, int packet_s
        }
        next_sym = next_symbol(os, cur_sym, addr);
 
-       if (!next_sym) {
+       if (!next_sym->symbol_name) {
                /* No more symbols need looking up */
 
                if (!target->rtos_auto_detect) {
@@ -242,13 +257,13 @@ int rtos_qsymbol(struct connection *connection, char const *packet, int packet_s
                }
        }
 
-       if (8 + (strlen(next_sym) * 2) + 1 > sizeof(reply)) {
-               LOG_ERROR("ERROR: RTOS symbol '%s' name is too long for GDB!", next_sym);
+       if (8 + (strlen(next_sym->symbol_name) * 2) + 1 > sizeof(reply)) {
+               LOG_ERROR("ERROR: RTOS symbol '%s' name is too long for GDB!", next_sym->symbol_name);
                goto done;
        }
 
        reply_len = snprintf(reply, sizeof(reply), "qSymbol:");
-       reply_len += hexify(reply + reply_len, next_sym, 0, sizeof(reply) - reply_len);
+       reply_len += hexify(reply + reply_len, next_sym->symbol_name, 0, sizeof(reply) - reply_len);
 
 done:
        gdb_put_packet(connection, reply, reply_len);
@@ -290,7 +305,7 @@ int rtos_thread_packet(struct connection *connection, char const *packet, int pa
                        if (detail->extra_info_str != NULL)
                                str_size += strlen(detail->extra_info_str);
 
-                       char *tmp_str = malloc(str_size + 7);
+                       char *tmp_str = calloc(str_size + 7, sizeof(char));
                        char *tmp_str_ptr = tmp_str;
 
                        if (detail->display_str != NULL)