ETM: use new toplevel ETM handle
[openocd.git] / src / target / etm.c
index 51065817dc413fb87281ea3d6d0872218417f5b5..53d31a1538421beb59d7381ad13fd53129d84e6e 100644 (file)
@@ -410,9 +410,8 @@ int etm_setup(target_t *target)
 {
        int retval;
        uint32_t etm_ctrl_value;
-       armv4_5_common_t *armv4_5 = target->arch_info;
-       arm7_9_common_t *arm7_9 = armv4_5->arch_info;
-       etm_context_t *etm_ctx = arm7_9->etm_ctx;
+       struct arm *arm = target_to_arm(target);
+       etm_context_t *etm_ctx = arm->etm;
        reg_t *etm_ctrl_reg;
 
        etm_ctrl_reg = etm_reg_lookup(etm_ctx, ETM_CTRL);
@@ -671,12 +670,12 @@ static int etm_read_instruction(etm_context_t *ctx, arm_instruction_t *instructi
        else if (ctx->core_state == ARMV4_5_STATE_JAZELLE)
        {
                LOG_ERROR("BUG: tracing of jazelle code not supported");
-               exit(-1);
+               return ERROR_FAIL;
        }
        else
        {
                LOG_ERROR("BUG: unknown core state encountered");
-               exit(-1);
+               return ERROR_FAIL;
        }
 
        return ERROR_OK;
@@ -977,8 +976,7 @@ static int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd
                                        break;
                                default:        /* reserved */
                                        LOG_ERROR("BUG: branch reason code 0x%" PRIx32 " is reserved", ctx->last_branch_reason);
-                                       exit(-1);
-                                       break;
+                                       return ERROR_FAIL;
                        }
 
                        /* if we got here the branch was a normal PC change
@@ -1155,113 +1153,117 @@ static int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd
        return ERROR_OK;
 }
 
-static int handle_etm_tracemode_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_tracemode_command_update(
+               struct command_context_s *cmd_ctx,
+               char **args, etmv1_tracemode_t *mode)
 {
-       target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
        etmv1_tracemode_t tracemode;
 
-       target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       /* what parts of data access are traced? */
+       if (strcmp(args[0], "none") == 0)
+               tracemode = ETMV1_TRACE_NONE;
+       else if (strcmp(args[0], "data") == 0)
+               tracemode = ETMV1_TRACE_DATA;
+       else if (strcmp(args[0], "address") == 0)
+               tracemode = ETMV1_TRACE_ADDR;
+       else if (strcmp(args[0], "all") == 0)
+               tracemode = ETMV1_TRACE_DATA | ETMV1_TRACE_ADDR;
+       else
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "invalid option '%s'", args[0]);
+               return ERROR_INVALID_ARGUMENTS;
        }
 
-       if (!arm7_9->etm_ctx)
-       {
-               command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+       uint8_t context_id;
+       COMMAND_PARSE_NUMBER(u8, args[1], context_id);
+       switch (context_id)
+       {
+       case 0:
+               tracemode |= ETMV1_CONTEXTID_NONE;
+               break;
+       case 8:
+               tracemode |= ETMV1_CONTEXTID_8;
+               break;
+       case 16:
+               tracemode |= ETMV1_CONTEXTID_16;
+               break;
+       case 32:
+               tracemode |= ETMV1_CONTEXTID_32;
+               break;
+       default:
+               command_print(cmd_ctx, "invalid option '%s'", args[1]);
+               return ERROR_INVALID_ARGUMENTS;
        }
 
-       tracemode = arm7_9->etm_ctx->tracemode;
+       if (strcmp(args[2], "enable") == 0)
+               tracemode |= ETMV1_CYCLE_ACCURATE;
+       else if (strcmp(args[2], "disable") == 0)
+               tracemode |= 0;
+       else
+       {
+               command_print(cmd_ctx, "invalid option '%s'", args[2]);
+               return ERROR_INVALID_ARGUMENTS;
+       }
 
-       if (argc == 4)
+       if (strcmp(args[3], "enable") == 0)
+               tracemode |= ETMV1_BRANCH_OUTPUT;
+       else if (strcmp(args[3], "disable") == 0)
+               tracemode |= 0;
+       else
        {
-               /* what parts of data access are traced? */
-               if (strcmp(args[0], "none") == 0)
-               {
-                       tracemode = ETMV1_TRACE_NONE;
-               }
-               else if (strcmp(args[0], "data") == 0)
-               {
-                       tracemode = ETMV1_TRACE_DATA;
-               }
-               else if (strcmp(args[0], "address") == 0)
-               {
-                       tracemode = ETMV1_TRACE_ADDR;
-               }
-               else if (strcmp(args[0], "all") == 0)
-               {
-                       tracemode = ETMV1_TRACE_DATA | ETMV1_TRACE_ADDR;
-               }
-               else
-               {
-                       command_print(cmd_ctx, "invalid option '%s'", args[0]);
-                       return ERROR_OK;
-               }
+               command_print(cmd_ctx, "invalid option '%s'", args[3]);
+               return ERROR_INVALID_ARGUMENTS;
+       }
 
-               switch (strtol(args[1], NULL, 0))
-               {
-                       case 0:
-                               tracemode |= ETMV1_CONTEXTID_NONE;
-                               break;
-                       case 8:
-                               tracemode |= ETMV1_CONTEXTID_8;
-                               break;
-                       case 16:
-                               tracemode |= ETMV1_CONTEXTID_16;
-                               break;
-                       case 32:
-                               tracemode |= ETMV1_CONTEXTID_32;
-                               break;
-                       default:
-                               command_print(cmd_ctx, "invalid option '%s'", args[1]);
-                               return ERROR_OK;
-               }
+       /* IGNORED:
+        *  - CPRT tracing (coprocessor register transfers)
+        *  - debug request (causes debug entry on trigger)
+        *  - stall on FIFOFULL (preventing tracedata lossage)
+        */
+       *mode = tracemode;
 
-               if (strcmp(args[2], "enable") == 0)
-               {
-                       tracemode |= ETMV1_CYCLE_ACCURATE;
-               }
-               else if (strcmp(args[2], "disable") == 0)
-               {
-                       tracemode |= 0;
-               }
-               else
-               {
-                       command_print(cmd_ctx, "invalid option '%s'", args[2]);
-                       return ERROR_OK;
-               }
+       return ERROR_OK;
+}
 
-               if (strcmp(args[3], "enable") == 0)
-               {
-                       tracemode |= ETMV1_BRANCH_OUTPUT;
-               }
-               else if (strcmp(args[3], "disable") == 0)
-               {
-                       tracemode |= 0;
-               }
-               else
-               {
-                       command_print(cmd_ctx, "invalid option '%s'", args[2]);
-                       return ERROR_OK;
-               }
+static int handle_etm_tracemode_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
+{
+       target_t *target = get_current_target(cmd_ctx);
+       struct arm *arm = target_to_arm(target);
+       struct etm *etm;
 
-               /* IGNORED:
-                *  - CPRT tracing (coprocessor register transfers)
-                *  - debug request (causes debug entry on trigger)
-                *  - stall on FIFOFULL (preventing tracedata lossage)
-                */
+       if (!is_arm(arm)) {
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
+       }
+
+       etm = arm->etm;
+       if (!etm) {
+               command_print(cmd_ctx, "current target doesn't have an ETM configured");
+               return ERROR_FAIL;
        }
-       else if (argc != 0)
+
+       etmv1_tracemode_t tracemode = etm->tracemode;
+
+       switch (argc)
        {
-               command_print(cmd_ctx, "usage: configure trace mode <none | data | address | all> <context id bits> <cycle accurate> <branch output>");
-               return ERROR_OK;
+       case 0:
+               break;
+       case 4:
+               handle_etm_tracemode_command_update(cmd_ctx, args, &tracemode);
+               break;
+       default:
+               command_print(cmd_ctx, "usage: configure trace mode "
+                               "<none | data | address | all> "
+                               "<context id bits> <cycle accurate> <branch output>");
+               return ERROR_FAIL;
        }
 
+       /**
+        * todo: fail if parameters were invalid for this hardware,
+        * or couldn't be written; display actual hardware state...
+        */
+
        command_print(cmd_ctx, "current tracemode configuration:");
 
        switch (tracemode & ETMV1_TRACE_MASK)
@@ -1315,13 +1317,13 @@ static int handle_etm_tracemode_command(struct command_context_s *cmd_ctx, char
        }
 
        /* only update ETM_CTRL register if tracemode changed */
-       if (arm7_9->etm_ctx->tracemode != tracemode)
+       if (etm->tracemode != tracemode)
        {
                reg_t *etm_ctrl_reg;
 
-               etm_ctrl_reg = etm_reg_lookup(arm7_9->etm_ctx, ETM_CTRL);
+               etm_ctrl_reg = etm_reg_lookup(etm, ETM_CTRL);
                if (!etm_ctrl_reg)
-                       return ERROR_OK;
+                       return ERROR_FAIL;
 
                etm_get_reg(etm_ctrl_reg);
 
@@ -1331,52 +1333,50 @@ static int handle_etm_tracemode_command(struct command_context_s *cmd_ctx, char
                buf_set_u32(etm_ctrl_reg->value, 8, 1, (tracemode & ETMV1_BRANCH_OUTPUT) >> 9);
                etm_store_reg(etm_ctrl_reg);
 
-               arm7_9->etm_ctx->tracemode = tracemode;
+               etm->tracemode = tracemode;
 
                /* invalidate old trace data */
-               arm7_9->etm_ctx->capture_status = TRACE_IDLE;
-               if (arm7_9->etm_ctx->trace_depth > 0)
+               etm->capture_status = TRACE_IDLE;
+               if (etm->trace_depth > 0)
                {
-                       free(arm7_9->etm_ctx->trace_data);
-                       arm7_9->etm_ctx->trace_data = NULL;
+                       free(etm->trace_data);
+                       etm->trace_data = NULL;
                }
-               arm7_9->etm_ctx->trace_depth = 0;
+               etm->trace_depth = 0;
        }
 
        return ERROR_OK;
 }
 
-static int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_config_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_portmode_t portmode = 0x0;
-       etm_context_t *etm_ctx = malloc(sizeof(etm_context_t));
+       struct etm *etm_ctx;
        int i;
 
        if (argc != 5)
-       {
-               free(etm_ctx);
                return ERROR_COMMAND_SYNTAX_ERROR;
-       }
 
        target = get_target(args[0]);
        if (!target)
        {
                LOG_ERROR("target '%s' not defined", args[0]);
-               free(etm_ctx);
                return ERROR_FAIL;
        }
 
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
-       {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               free(etm_ctx);
+       arm = target_to_arm(target);
+       if (!is_arm(arm)) {
+               command_print(cmd_ctx, "target '%s' is '%s'; not an ARM",
+                               target->cmd_name, target_get_name(target));
                return ERROR_FAIL;
        }
 
-       switch (strtoul(args[1], NULL, 0))
+       uint8_t port_width;
+       COMMAND_PARSE_NUMBER(u8, args[1], port_width);
+       switch (port_width)
        {
                case 4:
                        portmode |= ETM_PORT_4BIT;
@@ -1389,7 +1389,6 @@ static int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cm
                        break;
                default:
                        command_print(cmd_ctx, "unsupported ETM port width '%s', must be 4, 8 or 16", args[1]);
-                       free(etm_ctx);
                        return ERROR_FAIL;
        }
 
@@ -1408,7 +1407,6 @@ static int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cm
        else
        {
                command_print(cmd_ctx, "unsupported ETM port mode '%s', must be 'normal', 'multiplexed' or 'demultiplexed'", args[2]);
-               free(etm_ctx);
                return ERROR_FAIL;
        }
 
@@ -1423,7 +1421,12 @@ static int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cm
        else
        {
                command_print(cmd_ctx, "unsupported ETM port clocking '%s', must be 'full' or 'half'", args[3]);
-               free(etm_ctx);
+               return ERROR_FAIL;
+       }
+
+       etm_ctx = calloc(1, sizeof(etm_context_t));
+       if (!etm_ctx) {
+               LOG_DEBUG("out of memory");
                return ERROR_FAIL;
        }
 
@@ -1455,22 +1458,10 @@ static int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cm
        etm_ctx->target = target;
        etm_ctx->trigger_percent = 50;
        etm_ctx->trace_data = NULL;
-       etm_ctx->trace_depth = 0;
        etm_ctx->portmode = portmode;
-       etm_ctx->tracemode = 0x0;
        etm_ctx->core_state = ARMV4_5_STATE_ARM;
-       etm_ctx->image = NULL;
-       etm_ctx->pipe_index = 0;
-       etm_ctx->data_index = 0;
-       etm_ctx->current_pc = 0x0;
-       etm_ctx->pc_ok = 0;
-       etm_ctx->last_branch = 0x0;
-       etm_ctx->last_branch_reason = 0x0;
-       etm_ctx->last_ptr = 0x0;
-       etm_ctx->ptr_ok = 0x0;
-       etm_ctx->last_instruction = 0;
-
-       arm7_9->etm_ctx = etm_ctx;
+
+       arm->etm = etm_ctx;
 
        return etm_register_user_commands(cmd_ctx);
 }
@@ -1479,26 +1470,24 @@ static int handle_etm_info_command(struct command_context_s *cmd_ctx,
                char *cmd, char **args, int argc)
 {
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm;
        reg_t *etm_sys_config_reg;
-
        int max_port_size;
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       etm = arm7_9->etm_ctx;
+       etm = arm->etm;
        if (!etm)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        command_print(cmd_ctx, "ETM v%d.%d",
@@ -1549,7 +1538,7 @@ static int handle_etm_info_command(struct command_context_s *cmd_ctx,
                        break;
                default:
                        LOG_ERROR("Illegal max_port_size");
-                       exit(-1);
+                       return ERROR_FAIL;
        }
        command_print(cmd_ctx, "max. port size: %i", max_port_size);
 
@@ -1569,28 +1558,28 @@ static int handle_etm_info_command(struct command_context_s *cmd_ctx,
        return ERROR_OK;
 }
 
-static int handle_etm_status_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_status_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm;
        trace_status_t trace_status;
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       if (!arm7_9->etm_ctx)
+       etm = arm->etm;
+       if (!etm)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
-       etm = arm7_9->etm_ctx;
 
        /* ETM status */
        if (etm->bcd_vers >= 0x11) {
@@ -1598,7 +1587,7 @@ static int handle_etm_status_command(struct command_context_s *cmd_ctx, char *cm
 
                reg = etm_reg_lookup(etm, ETM_STATUS);
                if (!reg)
-                       return ERROR_OK;
+                       return ERROR_FAIL;
                if (etm_get_reg(reg) == ERROR_OK) {
                        unsigned s = buf_get_u32(reg->value, 0, reg->size);
 
@@ -1646,31 +1635,32 @@ static int handle_etm_status_command(struct command_context_s *cmd_ctx, char *cm
        return ERROR_OK;
 }
 
-static int handle_etm_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_image_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm_ctx;
 
        if (argc < 1)
        {
                command_print(cmd_ctx, "usage: etm image <file> [base address] [type]");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       if (!(etm_ctx = arm7_9->etm_ctx))
+       etm_ctx = arm->etm;
+       if (!etm_ctx)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        if (etm_ctx->image)
@@ -1688,7 +1678,7 @@ static int handle_etm_image_command(struct command_context_s *cmd_ctx, char *cmd
        if (argc >= 2)
        {
                etm_ctx->image->base_address_set = 1;
-               etm_ctx->image->base_address = strtoul(args[1], NULL, 0);
+               COMMAND_PARSE_NUMBER(int, args[1], etm_ctx->image->base_address);
        }
        else
        {
@@ -1699,39 +1689,40 @@ static int handle_etm_image_command(struct command_context_s *cmd_ctx, char *cmd
        {
                free(etm_ctx->image);
                etm_ctx->image = NULL;
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        return ERROR_OK;
 }
 
-static int handle_etm_dump_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_dump_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        fileio_t file;
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm_ctx;
        uint32_t i;
 
        if (argc != 1)
        {
                command_print(cmd_ctx, "usage: etm dump <file>");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       if (!(etm_ctx = arm7_9->etm_ctx))
+       etm_ctx = arm->etm;
+       if (!etm_ctx)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        if (etm_ctx->capture_driver->status == TRACE_IDLE)
@@ -1744,7 +1735,7 @@ static int handle_etm_dump_command(struct command_context_s *cmd_ctx, char *cmd,
        {
                /* TODO: if on-the-fly capture is to be supported, this needs to be changed */
                command_print(cmd_ctx, "trace capture not completed");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        /* read the trace data if it wasn't read already */
@@ -1753,7 +1744,7 @@ static int handle_etm_dump_command(struct command_context_s *cmd_ctx, char *cmd,
 
        if (fileio_open(&file, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
        {
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        fileio_write_u32(&file, etm_ctx->capture_status);
@@ -1773,51 +1764,52 @@ static int handle_etm_dump_command(struct command_context_s *cmd_ctx, char *cmd,
        return ERROR_OK;
 }
 
-static int handle_etm_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_load_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        fileio_t file;
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm_ctx;
        uint32_t i;
 
        if (argc != 1)
        {
                command_print(cmd_ctx, "usage: etm load <file>");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       if (!(etm_ctx = arm7_9->etm_ctx))
+       etm_ctx = arm->etm;
+       if (!etm_ctx)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        if (etm_ctx->capture_driver->status(etm_ctx) & TRACE_RUNNING)
        {
                command_print(cmd_ctx, "trace capture running, stop first");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        if (fileio_open(&file, args[0], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
        {
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        if (file.size % 4)
        {
                command_print(cmd_ctx, "size isn't a multiple of 4, no valid trace data");
                fileio_close(&file);
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        if (etm_ctx->trace_depth > 0)
@@ -1838,7 +1830,7 @@ static int handle_etm_load_command(struct command_context_s *cmd_ctx, char *cmd,
        {
                command_print(cmd_ctx, "not enough memory to perform operation");
                fileio_close(&file);
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        for (i = 0; i < etm_ctx->trace_depth; i++)
@@ -1857,30 +1849,32 @@ static int handle_etm_load_command(struct command_context_s *cmd_ctx, char *cmd,
        return ERROR_OK;
 }
 
-static int handle_etm_trigger_percent_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_trigger_percent_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm_ctx;
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       if (!(etm_ctx = arm7_9->etm_ctx))
+       etm_ctx = arm->etm;
+       if (!etm_ctx)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        if (argc > 0)
        {
-               uint32_t new_value = strtoul(args[0], NULL, 0);
+               uint32_t new_value;
+               COMMAND_PARSE_NUMBER(u32, args[0], new_value);
 
                if ((new_value < 2) || (new_value > 100))
                {
@@ -1897,40 +1891,41 @@ static int handle_etm_trigger_percent_command(struct command_context_s *cmd_ctx,
        return ERROR_OK;
 }
 
-static int handle_etm_start_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_start_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm_ctx;
        reg_t *etm_ctrl_reg;
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       if (!(etm_ctx = arm7_9->etm_ctx))
+       etm_ctx = arm->etm;
+       if (!etm_ctx)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        /* invalidate old tracing data */
-       arm7_9->etm_ctx->capture_status = TRACE_IDLE;
-       if (arm7_9->etm_ctx->trace_depth > 0)
+       etm_ctx->capture_status = TRACE_IDLE;
+       if (etm_ctx->trace_depth > 0)
        {
-               free(arm7_9->etm_ctx->trace_data);
-               arm7_9->etm_ctx->trace_data = NULL;
+               free(etm_ctx->trace_data);
+               etm_ctx->trace_data = NULL;
        }
-       arm7_9->etm_ctx->trace_depth = 0;
+       etm_ctx->trace_depth = 0;
 
        etm_ctrl_reg = etm_reg_lookup(etm_ctx, ETM_CTRL);
        if (!etm_ctrl_reg)
-               return ERROR_OK;
+               return ERROR_FAIL;
 
        etm_get_reg(etm_ctrl_reg);
 
@@ -1945,31 +1940,32 @@ static int handle_etm_start_command(struct command_context_s *cmd_ctx, char *cmd
        return ERROR_OK;
 }
 
-static int handle_etm_stop_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_stop_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm_ctx;
        reg_t *etm_ctrl_reg;
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       if (!(etm_ctx = arm7_9->etm_ctx))
+       etm_ctx = arm->etm;
+       if (!etm_ctx)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        etm_ctrl_reg = etm_reg_lookup(etm_ctx, ETM_CTRL);
        if (!etm_ctrl_reg)
-               return ERROR_OK;
+               return ERROR_FAIL;
 
        etm_get_reg(etm_ctrl_reg);
 
@@ -1984,26 +1980,27 @@ static int handle_etm_stop_command(struct command_context_s *cmd_ctx, char *cmd,
        return ERROR_OK;
 }
 
-static int handle_etm_analyze_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etm_analyze_command(struct command_context_s *cmd_ctx,
+               char *cmd, char **args, int argc)
 {
        target_t *target;
-       armv4_5_common_t *armv4_5;
-       arm7_9_common_t *arm7_9;
+       struct arm *arm;
        etm_context_t *etm_ctx;
        int retval;
 
        target = get_current_target(cmd_ctx);
-
-       if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+       arm = target_to_arm(target);
+       if (!is_arm(arm))
        {
-               command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
-               return ERROR_OK;
+               command_print(cmd_ctx, "ETM: current target isn't an ARM");
+               return ERROR_FAIL;
        }
 
-       if (!(etm_ctx = arm7_9->etm_ctx))
+       etm_ctx = arm->etm;
+       if (!etm_ctx)
        {
                command_print(cmd_ctx, "current target doesn't have an ETM configured");
-               return ERROR_OK;
+               return ERROR_FAIL;
        }
 
        if ((retval = etmv1_analyze_trace(etm_ctx, cmd_ctx)) != ERROR_OK)
@@ -2024,7 +2021,7 @@ static int handle_etm_analyze_command(struct command_context_s *cmd_ctx, char *c
                }
        }
 
-       return ERROR_OK;
+       return retval;
 }
 
 int etm_register_commands(struct command_context_s *cmd_ctx)

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