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Improve ETM tracemode update command.
authorZachary T Welch <zw@superlucidity.net>
Thu, 22 Oct 2009 15:11:55 +0000 (08:11 -0700)
committerZachary T Welch <zw@superlucidity.net>
Fri, 6 Nov 2009 02:03:20 +0000 (18:03 -0800)
src/target/etm.c patch | blob | history

diff --git a/src/target/etm.c b/src/target/etm.c
index 0f5a96f6103dff6bca63a242645aa65c1e701669..8229bb07d0b154943149655201d3c70764c38703 100644 (file)
--- a/src/target/etm.c
+++ b/src/target/etm.c
@@ -1155,112 +1155,108 @@ 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");
+               command_print(cmd_ctx, "invalid option '%s'", args[0]);
                return ERROR_OK;
        }
 
-       if (!arm7_9->etm_ctx)
-       {
-               command_print(cmd_ctx, "current target doesn't have an ETM configured");
+       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_OK;
        }
 
-       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_OK;
+       }
 
-       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_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_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);
 
-               /* IGNORED:
-                *  - CPRT tracing (coprocessor register transfers)
-                *  - debug request (causes debug entry on trigger)
-                *  - stall on FIFOFULL (preventing tracedata lossage)
-                */
+       armv4_5_common_t *armv4_5;
+       arm7_9_common_t *arm7_9;
+       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");
+               return ERROR_OK;
        }
-       else if (argc != 0)
+
+       if (!arm7_9->etm_ctx)
+       {
+               command_print(cmd_ctx, "current target doesn't have an ETM configured");
+               return ERROR_OK;
+       }
+
+       etmv1_tracemode_t tracemode = arm7_9->etm_ctx->tracemode;
+       switch (argc)
        {
-               command_print(cmd_ctx, "usage: configure trace mode <none | data | address | all> <context id bits> <cycle accurate> <branch output>");
+       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_OK;
        }
 
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