rtos: allow symbols to be optional for a particular RTOS

Default to non-optional.

Change-Id: Ifc9ddb1ab701a19c3760f95da47da6f7d412ff2e
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2355
Tested-by: jenkins
Reviewed-by: Christian Gudrian <christian.gudrian@gmx.de>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

diff --git a/src/rtos/ChibiOS.c b/src/rtos/ChibiOS.c
index 46fdca323fcdf7ec1bb3bb80288a0d4c427931b4..ba14a284ccfc31e41dfb3853123c5d84386f4979 100644 (file)
--- a/src/rtos/ChibiOS.c
+++ b/src/rtos/ChibiOS.c
@@ -497,8 +497,8 @@ static int ChibiOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, cha
 static int ChibiOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 {
        unsigned int i;
-       *symbol_list = malloc(
-                       sizeof(symbol_table_elem_t) * ARRAY_SIZE(ChibiOS_symbol_list));
+       *symbol_list = calloc(
+                       ARRAY_SIZE(ChibiOS_symbol_list), sizeof(symbol_table_elem_t));
 
        for (i = 0; i < ARRAY_SIZE(ChibiOS_symbol_list); i++)
                (*symbol_list)[i].symbol_name = ChibiOS_symbol_list[i];

diff --git a/src/rtos/FreeRTOS.c b/src/rtos/FreeRTOS.c
index 1e699c6adfe1983256c3bc76741fafc8dcc1c035..8f66c4ca0c98b6482a237670795c3b892f50054d 100644 (file)
--- a/src/rtos/FreeRTOS.c
+++ b/src/rtos/FreeRTOS.c
@@ -390,8 +390,8 @@ static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, ch
 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 {
        unsigned int i;
-       *symbol_list = malloc(
-                       sizeof(symbol_table_elem_t) * ARRAY_SIZE(FreeRTOS_symbol_list));
+       *symbol_list = calloc(
+                       ARRAY_SIZE(FreeRTOS_symbol_list), sizeof(symbol_table_elem_t));
 
        for (i = 0; i < ARRAY_SIZE(FreeRTOS_symbol_list); i++)
                (*symbol_list)[i].symbol_name = FreeRTOS_symbol_list[i];

diff --git a/src/rtos/ThreadX.c b/src/rtos/ThreadX.c
index 88470b62ff198c6a83ace509a08286bbc41edb23..fb9f5f7d916affd62774b532805ecb2c4d60bd21 100644 (file)
--- a/src/rtos/ThreadX.c
+++ b/src/rtos/ThreadX.c
@@ -330,8 +330,8 @@ static int ThreadX_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, cha
 static int ThreadX_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 {
        unsigned int i;
-       *symbol_list = malloc(
-                       sizeof(symbol_table_elem_t) * ARRAY_SIZE(ThreadX_symbol_list));
+       *symbol_list = calloc(
+                       ARRAY_SIZE(ThreadX_symbol_list), sizeof(symbol_table_elem_t));
 
        for (i = 0; i < ARRAY_SIZE(ThreadX_symbol_list); i++)
                (*symbol_list)[i].symbol_name = ThreadX_symbol_list[i];

diff --git a/src/rtos/eCos.c b/src/rtos/eCos.c
index 62fb3b7bc29aa4a5f4e474c2006d330836dd8dfc..746172d6c568123a7e9153afaa170dd4ca1fb8d6 100644 (file)
--- a/src/rtos/eCos.c
+++ b/src/rtos/eCos.c
@@ -359,8 +359,8 @@ static int eCos_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char *
 static int eCos_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 {
        unsigned int i;
-       *symbol_list = malloc(
-                       sizeof(symbol_table_elem_t) * ARRAY_SIZE(eCos_symbol_list));
+       *symbol_list = calloc(
+                       ARRAY_SIZE(eCos_symbol_list), sizeof(symbol_table_elem_t));
 
        for (i = 0; i < ARRAY_SIZE(eCos_symbol_list); i++)
                (*symbol_list)[i].symbol_name = eCos_symbol_list[i];

diff --git a/src/rtos/embKernel.c b/src/rtos/embKernel.c
index 6cb42d14e8577cf543cb35a3804d5f234cdea39e..a8b07c39885273a06e043571d146e8fec26d7410 100644 (file)
--- a/src/rtos/embKernel.c
+++ b/src/rtos/embKernel.c
@@ -335,7 +335,7 @@ static int embKernel_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, c
 static int embKernel_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 {
        unsigned int i;
-       *symbol_list = malloc(sizeof(symbol_table_elem_t) * ARRAY_SIZE(embKernel_symbol_list));
+       *symbol_list = calloc(ARRAY_SIZE(embKernel_symbol_list), sizeof(symbol_table_elem_t));
 
        for (i = 0; i < ARRAY_SIZE(embKernel_symbol_list); i++)
                (*symbol_list)[i].symbol_name = embKernel_symbol_list[i];

diff --git a/src/rtos/linux.c b/src/rtos/linux.c
index 9021d8c25476684f98032ebe11a002aa44b0646a..b4403af08c0e34cada343f55baaeb995738f8924 100644 (file)
--- a/src/rtos/linux.c
+++ b/src/rtos/linux.c
@@ -329,7 +329,7 @@ static int linux_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 {
        unsigned int i;
        *symbol_list = (symbol_table_elem_t *)
-               malloc(sizeof(symbol_table_elem_t) * ARRAY_SIZE(linux_symbol_list));
+               calloc(ARRAY_SIZE(linux_symbol_list), sizeof(symbol_table_elem_t));
 
        for (i = 0; i < ARRAY_SIZE(linux_symbol_list); i++)
                (*symbol_list)[i].symbol_name = linux_symbol_list[i];

diff --git a/src/rtos/rtos.c b/src/rtos/rtos.c
index 735c1065b576ccde05586e6f00c1c859ec1d3467..d09e110546e110a01d01d86e0890f6c4de93c2b5 100644 (file)
--- a/src/rtos/rtos.c
+++ b/src/rtos/rtos.c
@@ -147,7 +147,7 @@ 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 +155,29 @@ 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 +203,7 @@ 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 +217,9 @@ 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 +237,7 @@ 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 +255,13 @@ 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);

diff --git a/src/rtos/rtos.h b/src/rtos/rtos.h
index 980d95d51802e03f165ded8e257bd2a240d1a46a..7750f3c7fa8ee4c8227bff53b1b146e839002560 100644 (file)
--- a/src/rtos/rtos.h
+++ b/src/rtos/rtos.h
@@ -35,7 +35,7 @@ struct reg;
 typedef struct symbol_table_elem_struct {
        const char *symbol_name;
        symbol_address_t address;
-
+       bool optional;
 } symbol_table_elem_t;
 
 struct thread_detail {