cortex_a hybrid & context breakpoints
[openocd.git] / src / target / breakpoints.c
index 08008c226d22f8f4f675e8d250b1e09a2a1ce62c..5a0fc401ff27679d0ae8de1396ba5ee6777d9630 100644 (file)
@@ -2,6 +2,9 @@
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
+ *   Copyright (C) ST-Ericsson SA 2011                                     *
+ *   michel.jaouen@stericsson.com : smp minimum support                    *
+ *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
@@ -22,7 +25,7 @@
 #endif
 
 #include "target.h"
-#include "log.h"
+#include <helper/log.h>
 #include "breakpoints.h"
 
 
@@ -42,10 +45,11 @@ static char *watchpoint_rw_strings[] =
 // monotonic counter/id-number for breakpoints and watch points
 static int bpwp_unique_id;
 
-int breakpoint_add(target_t *target, uint32_t address, uint32_t length, enum breakpoint_type type)
+int breakpoint_add_internal(struct target *target, uint32_t address, uint32_t length, enum breakpoint_type type)
 {
-       breakpoint_t *breakpoint = target->breakpoints;
-       breakpoint_t **breakpoint_p = &target->breakpoints;
+       struct breakpoint *breakpoint = target->breakpoints;
+       struct breakpoint **breakpoint_p = &target->breakpoints;
+       char *reason;
        int retval;
        int n;
 
@@ -53,7 +57,11 @@ int breakpoint_add(target_t *target, uint32_t address, uint32_t length, enum bre
        while (breakpoint)
        {
                n++;
-               if (breakpoint->address == address){
+               if (breakpoint->address == address) {
+                       /* FIXME don't assume "same address" means "same
+                        * breakpoint" ... check all the parameters before
+                        * succeeding.
+                        */
                        LOG_DEBUG("Duplicate Breakpoint address: 0x%08" PRIx32 " (BP %d)",
                                  address, breakpoint->unique_id );
                        return ERROR_OK;
@@ -62,8 +70,9 @@ int breakpoint_add(target_t *target, uint32_t address, uint32_t length, enum bre
                breakpoint = breakpoint->next;
        }
 
-       (*breakpoint_p) = malloc(sizeof(breakpoint_t));
+       (*breakpoint_p) = malloc(sizeof(struct breakpoint));
        (*breakpoint_p)->address = address;
+       (*breakpoint_p)->asid = 0;
        (*breakpoint_p)->length = length;
        (*breakpoint_p)->type = type;
        (*breakpoint_p)->set = 0;
@@ -71,31 +80,24 @@ int breakpoint_add(target_t *target, uint32_t address, uint32_t length, enum bre
        (*breakpoint_p)->next = NULL;
        (*breakpoint_p)->unique_id = bpwp_unique_id++;
 
-       if ((retval = target_add_breakpoint(target, *breakpoint_p)) != ERROR_OK)
-       {
-               switch (retval)
-               {
-                       case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
-                               LOG_INFO("can't add %s breakpoint, resource not available (BPID=%d)",
-                                        breakpoint_type_strings[(*breakpoint_p)->type],
-                                        (*breakpoint_p)->unique_id );
-
-                               free((*breakpoint_p)->orig_instr);
-                               free(*breakpoint_p);
-                               *breakpoint_p = NULL;
-                               return retval;
-                               break;
-                       case ERROR_TARGET_NOT_HALTED:
-                               LOG_INFO("can't add breakpoint while target is running (BPID: %d)",
-                                                (*breakpoint_p)->unique_id );
-                               free((*breakpoint_p)->orig_instr);
-                               free(*breakpoint_p);
-                               *breakpoint_p = NULL;
-                               return retval;
-                               break;
-                       default:
-                               break;
-               }
+       retval = target_add_breakpoint(target, *breakpoint_p);
+       switch (retval) {
+       case ERROR_OK:
+               break;
+       case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
+               reason = "resource not available";
+               goto fail;
+       case ERROR_TARGET_NOT_HALTED:
+               reason = "target running";
+               goto fail;
+       default:
+               reason = "unknown reason";
+fail:
+               LOG_ERROR("can't add breakpoint: %s", reason);
+               free((*breakpoint_p)->orig_instr);
+               free(*breakpoint_p);
+               *breakpoint_p = NULL;
+               return retval;
        }
 
        LOG_DEBUG("added %s breakpoint at 0x%8.8" PRIx32 " of length 0x%8.8x, (BPID: %d)",
@@ -106,15 +108,194 @@ int breakpoint_add(target_t *target, uint32_t address, uint32_t length, enum bre
        return ERROR_OK;
 }
 
+int context_breakpoint_add_internal(struct target *target, uint32_t asid, uint32_t length, enum breakpoint_type type)
+{
+       struct breakpoint *breakpoint = target->breakpoints;
+       struct breakpoint **breakpoint_p = &target->breakpoints;
+       int retval;
+       int n;
+
+       n = 0;
+       while (breakpoint)
+       {
+               n++;
+               if (breakpoint->asid == asid) 
+               {
+                       /* FIXME don't assume "same address" means "same
+                        * breakpoint" ... check all the parameters before
+                        * succeeding.
+                        */
+                       LOG_DEBUG("Duplicate Breakpoint asid: 0x%08" PRIx32 " (BP %d)",
+                                       asid, breakpoint->unique_id );
+                       return -1;
+               }
+               breakpoint_p = &breakpoint->next;
+               breakpoint = breakpoint->next;
+       }
+
+       (*breakpoint_p) = malloc(sizeof(struct breakpoint));
+       (*breakpoint_p)->address = 0;
+       (*breakpoint_p)->asid = asid;
+       (*breakpoint_p)->length = length;
+       (*breakpoint_p)->type = type;
+       (*breakpoint_p)->set = 0;
+       (*breakpoint_p)->orig_instr = malloc(length);
+       (*breakpoint_p)->next = NULL;
+       (*breakpoint_p)->unique_id = bpwp_unique_id++;
+       retval = target_add_context_breakpoint(target, *breakpoint_p);
+       if (retval != ERROR_OK)
+       {
+               LOG_ERROR("could not add breakpoint");
+               free((*breakpoint_p)->orig_instr);
+               free(*breakpoint_p);
+               *breakpoint_p = NULL;
+               return retval;
+       }
+
+       LOG_DEBUG("added %s Context breakpoint at 0x%8.8" PRIx32 " of length 0x%8.8x, (BPID: %d)",
+                       breakpoint_type_strings[(*breakpoint_p)->type],
+                       (*breakpoint_p)->asid, (*breakpoint_p)->length,
+                       (*breakpoint_p)->unique_id  );
+
+       return ERROR_OK;
+}
+
+int hybrid_breakpoint_add_internal(struct target *target, uint32_t address, uint32_t asid, uint32_t length, enum breakpoint_type type)
+{      
+       struct breakpoint *breakpoint = target->breakpoints;
+       struct breakpoint **breakpoint_p = &target->breakpoints;
+       int retval;
+       int n;
+       n = 0;
+       while (breakpoint)
+       {
+               n++;
+               if ((breakpoint->asid == asid) && (breakpoint->address == address)) {
+                       /* FIXME don't assume "same address" means "same
+                        * breakpoint" ... check all the parameters before
+                        * succeeding.
+                        */
+                       LOG_DEBUG("Duplicate Hybrid Breakpoint asid: 0x%08" PRIx32 " (BP %d)",
+                                       asid, breakpoint->unique_id );
+                       return -1;
+               }
+               else if ((breakpoint->address == address) && (breakpoint->asid == 0)) 
+               {
+                       LOG_DEBUG("Duplicate Breakpoint IVA: 0x%08" PRIx32 " (BP %d)",
+                                       address, breakpoint->unique_id );
+                       return -1;
+                       
+               }
+               breakpoint_p = &breakpoint->next;
+               breakpoint = breakpoint->next;
+       }
+       (*breakpoint_p) = malloc(sizeof(struct breakpoint));
+       (*breakpoint_p)->address = address;
+       (*breakpoint_p)->asid = asid;
+       (*breakpoint_p)->length = length;
+       (*breakpoint_p)->type = type;
+       (*breakpoint_p)->set = 0;
+       (*breakpoint_p)->orig_instr = malloc(length);
+       (*breakpoint_p)->next = NULL;
+       (*breakpoint_p)->unique_id = bpwp_unique_id++;
+
+
+       retval = target_add_hybrid_breakpoint(target, *breakpoint_p);
+       if (retval != ERROR_OK)
+       {
+               LOG_ERROR("could not add breakpoint");
+               free((*breakpoint_p)->orig_instr);
+               free(*breakpoint_p);
+               *breakpoint_p = NULL;
+               return retval;
+       }
+       LOG_DEBUG("added %s Hybrid breakpoint at address 0x%8.8" PRIx32 " of length 0x%8.8x, (BPID: %d)",
+                       breakpoint_type_strings[(*breakpoint_p)->type],
+                       (*breakpoint_p)->address, (*breakpoint_p)->length,
+                       (*breakpoint_p)->unique_id  );
+
+       return ERROR_OK;
+}
+
+
+
+int breakpoint_add(struct target *target, uint32_t address, uint32_t length, enum breakpoint_type type)
+{
+
+int retval = ERROR_OK;
+    if (target->smp)
+       {
+               struct target_list *head;
+               struct target *curr;
+               head = target->head;
+               while(head != (struct target_list*)NULL)
+               {
+                       curr = head->target;
+                       retval = breakpoint_add_internal(curr, address,length, type);
+                       if (retval != ERROR_OK) return retval;
+                       head = head->next;      
+               }
+               return retval;
+       }
+       else
+       return(breakpoint_add_internal(target, address, length, type));
+
+}
+int context_breakpoint_add(struct target *target, uint32_t asid, uint32_t length, enum breakpoint_type type)
+{
+
+int retval = ERROR_OK;
+    if (target->smp)
+       {
+               struct target_list *head;
+               struct target *curr;
+               head = target->head;
+               while(head != (struct target_list*)NULL)
+               {
+                       curr = head->target;
+                       retval = context_breakpoint_add_internal(curr, asid,length, type);
+                       if (retval != ERROR_OK) return retval;
+                       head = head->next;      
+               }
+               return retval;
+       }
+       else
+       return(context_breakpoint_add_internal(target, asid, length, type));
+
+}
+int hybrid_breakpoint_add(struct target *target, uint32_t address, uint32_t asid, uint32_t length, enum breakpoint_type type)
+{
+
+int retval = ERROR_OK;
+    if (target->smp)
+       {
+               struct target_list *head;
+               struct target *curr;
+               head = target->head;
+               while(head != (struct target_list*)NULL)
+               {
+                       curr = head->target;
+                       retval = hybrid_breakpoint_add_internal(curr, address, asid, length, type);
+                       if (retval != ERROR_OK) return retval;
+                       head = head->next;      
+               }
+               return retval;
+       }
+       else
+       return(hybrid_breakpoint_add_internal(target, address, asid, length, type));
+
+}
+
 /* free up a breakpoint */
-static void breakpoint_free(target_t *target, breakpoint_t *breakpoint_remove)
+static void breakpoint_free(struct target *target, struct breakpoint *breakpoint_to_remove)
 {
-       breakpoint_t *breakpoint = target->breakpoints;
-       breakpoint_t **breakpoint_p = &target->breakpoints;
+       struct breakpoint *breakpoint = target->breakpoints;
+       struct breakpoint **breakpoint_p = &target->breakpoints;
+       int retval;
 
        while (breakpoint)
        {
-               if (breakpoint == breakpoint_remove)
+               if (breakpoint == breakpoint_to_remove)
                        break;
                breakpoint_p = &breakpoint->next;
                breakpoint = breakpoint->next;
@@ -123,24 +304,26 @@ static void breakpoint_free(target_t *target, breakpoint_t *breakpoint_remove)
        if (breakpoint == NULL)
                return;
 
-       target_remove_breakpoint(target, breakpoint);
+       retval = target_remove_breakpoint(target, breakpoint);
 
-       LOG_DEBUG("BPID: %d", breakpoint->unique_id );
+       LOG_DEBUG("free BPID: %d --> %d", breakpoint->unique_id, retval);
        (*breakpoint_p) = breakpoint->next;
        free(breakpoint->orig_instr);
        free(breakpoint);
 }
 
-void breakpoint_remove(target_t *target, uint32_t address)
+void breakpoint_remove_internal(struct target *target, uint32_t address)
 {
-       breakpoint_t *breakpoint = target->breakpoints;
-       breakpoint_t **breakpoint_p = &target->breakpoints;
+       struct breakpoint *breakpoint = target->breakpoints;
 
        while (breakpoint)
        {
-               if (breakpoint->address == address)
+               if ((breakpoint->address == address) && (breakpoint->asid == 0))
+                       break;
+               else if ((breakpoint->address == 0) && (breakpoint->asid == address))
+                       break;
+               else if ((breakpoint->address == address) && (breakpoint->asid != 0))
                        break;
-               breakpoint_p = &breakpoint->next;
                breakpoint = breakpoint->next;
        }
 
@@ -153,20 +336,57 @@ void breakpoint_remove(target_t *target, uint32_t address)
                LOG_ERROR("no breakpoint at address 0x%8.8" PRIx32 " found", address);
        }
 }
+void breakpoint_remove(struct target *target, uint32_t address)
+{
+    if ((target->smp))
+       {
+               struct target_list *head;
+               struct target *curr;
+               head = target->head;
+               while(head != (struct target_list*)NULL)
+               {
+                       curr = head->target;
+                       breakpoint_remove_internal(curr, address);
+                       head = head->next;      
+               }
+       }
+       else  breakpoint_remove_internal(target, address);
+}
 
-void breakpoint_clear_target(target_t *target)
+void breakpoint_clear_target_internal(struct target *target)
 {
-       breakpoint_t *breakpoint;
-       LOG_DEBUG("Delete all breakpoints for target: %s", target_get_name( target ));
+       struct breakpoint *breakpoint;
+
+       LOG_DEBUG("Delete all breakpoints for target: %s",
+                       target_name(target));
        while ((breakpoint = target->breakpoints) != NULL)
        {
                breakpoint_free(target, breakpoint);
        }
 }
 
-breakpoint_t* breakpoint_find(target_t *target, uint32_t address)
+void breakpoint_clear_target(struct target *target)
 {
-       breakpoint_t *breakpoint = target->breakpoints;
+    if (target->smp)
+       {
+               struct target_list *head;
+               struct target *curr;
+               head = target->head;
+               while(head != (struct target_list*)NULL)
+               {
+                       curr = head->target;
+                   breakpoint_clear_target_internal(curr);
+                       head = head->next;      
+               }
+     }
+        else breakpoint_clear_target_internal(target);
+       
+}
+
+
+struct breakpoint* breakpoint_find(struct target *target, uint32_t address)
+{
+       struct breakpoint *breakpoint = target->breakpoints;
 
        while (breakpoint)
        {
@@ -178,7 +398,7 @@ breakpoint_t* breakpoint_find(target_t *target, uint32_t address)
        return NULL;
 }
 
-int watchpoint_add(target_t *target, uint32_t address, uint32_t length,
+int watchpoint_add(struct target *target, uint32_t address, uint32_t length,
                enum watchpoint_rw rw, uint32_t value, uint32_t mask)
 {
        struct watchpoint *watchpoint = target->watchpoints;
@@ -235,23 +455,25 @@ bye:
                return retval;
        }
 
-       LOG_DEBUG("added %s watchpoint at 0x%8.8" PRIx32 " of length 0x%8.8x (WPID: %d)",
-                         watchpoint_rw_strings[(*watchpoint_p)->rw],
-                         (*watchpoint_p)->address,
-                         (*watchpoint_p)->length,
-                         (*watchpoint_p)->unique_id );
+       LOG_DEBUG("added %s watchpoint at 0x%8.8" PRIx32
+                       " of length 0x%8.8" PRIx32 " (WPID: %d)",
+                       watchpoint_rw_strings[(*watchpoint_p)->rw],
+                       (*watchpoint_p)->address,
+                       (*watchpoint_p)->length,
+                       (*watchpoint_p)->unique_id );
 
        return ERROR_OK;
 }
 
-static void watchpoint_free(target_t *target, struct watchpoint *watchpoint_remove)
+static void watchpoint_free(struct target *target, struct watchpoint *watchpoint_to_remove)
 {
        struct watchpoint *watchpoint = target->watchpoints;
        struct watchpoint **watchpoint_p = &target->watchpoints;
+       int retval;
 
        while (watchpoint)
        {
-               if (watchpoint == watchpoint_remove)
+               if (watchpoint == watchpoint_to_remove)
                        break;
                watchpoint_p = &watchpoint->next;
                watchpoint = watchpoint->next;
@@ -259,22 +481,20 @@ static void watchpoint_free(target_t *target, struct watchpoint *watchpoint_remo
 
        if (watchpoint == NULL)
                return;
-       target_remove_watchpoint(target, watchpoint);
-       LOG_DEBUG("WPID: %d", watchpoint->unique_id );
+       retval = target_remove_watchpoint(target, watchpoint);
+       LOG_DEBUG("free WPID: %d --> %d", watchpoint->unique_id, retval);
        (*watchpoint_p) = watchpoint->next;
        free(watchpoint);
 }
 
-void watchpoint_remove(target_t *target, uint32_t address)
+void watchpoint_remove(struct target *target, uint32_t address)
 {
        struct watchpoint *watchpoint = target->watchpoints;
-       struct watchpoint **watchpoint_p = &target->watchpoints;
 
        while (watchpoint)
        {
                if (watchpoint->address == address)
                        break;
-               watchpoint_p = &watchpoint->next;
                watchpoint = watchpoint->next;
        }
 
@@ -288,10 +508,12 @@ void watchpoint_remove(target_t *target, uint32_t address)
        }
 }
 
-void watchpoint_clear_target(target_t *target)
+void watchpoint_clear_target(struct target *target)
 {
        struct watchpoint *watchpoint;
-       LOG_DEBUG("Delete all watchpoints for target: %s", target_get_name( target ));
+
+       LOG_DEBUG("Delete all watchpoints for target: %s",
+                       target_name(target));
        while ((watchpoint = target->watchpoints) != NULL)
        {
                watchpoint_free(target, watchpoint);

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