ARM: label SP and LR correctly
[openocd.git] / src / target / arm11.c
index 835234cecd2c4fa3c08e5f1c1828da386b9d3266..605e741b3db0819c5ea1d9168a4345f9edd1d35f 100644 (file)
@@ -293,12 +293,11 @@ static int arm11_on_enter_debug_state(struct arm11_common *arm11)
        return ERROR_OK;
 }
 
-/** Restore processor state
-  *
-  * This is called in preparation for the RESTART function.
-  *
-  */
-static int arm11_leave_debug_state(struct arm11_common *arm11)
+/**
+ * Restore processor state.  This is called in preparation for
+ * the RESTART function.
+ */
+static int arm11_leave_debug_state(struct arm11_common *arm11, bool bpwp)
 {
        int retval;
 
@@ -354,7 +353,7 @@ static int arm11_leave_debug_state(struct arm11_common *arm11)
        /* restore CPSR, PC, and R0 ... after flushing any modified
         * registers.
         */
-       retval = arm_dpm_write_dirty_registers(&arm11->dpm);
+       retval = arm_dpm_write_dirty_registers(&arm11->dpm, bpwp);
 
        register_cache_invalidate(arm11->arm.core_cache);
 
@@ -598,7 +597,7 @@ static int arm11_resume(struct target *target, int current,
                arm11_sc7_set_vcr(arm11, arm11_vcr);
        }
 
-       arm11_leave_debug_state(arm11);
+       arm11_leave_debug_state(arm11, handle_breakpoints);
 
        arm11_add_IR(arm11, ARM11_RESTART, TAP_IDLE);
 
@@ -762,7 +761,7 @@ static int arm11_step(struct target *target, int current,
                        R(DSCR) |= ARM11_DSCR_INTERRUPTS_DISABLE;
 
 
-               CHECK_RETVAL(arm11_leave_debug_state(arm11));
+               CHECK_RETVAL(arm11_leave_debug_state(arm11, handle_breakpoints));
 
                arm11_add_IR(arm11, ARM11_RESTART, TAP_IDLE);
 
@@ -989,13 +988,14 @@ static int arm11_read_memory(struct target *target, uint32_t address, uint32_t s
 }
 
 /*
-* arm11_config_memrw_no_increment - in the future we may want to be able
+* no_increment - in the future we may want to be able
 * to read/write a range of data to a "port". a "port" is an action on
 * read memory address for some peripheral.
 */
 static int arm11_write_memory_inner(struct target *target,
-               uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer,
-               bool arm11_config_memrw_no_increment)
+               uint32_t address, uint32_t size,
+               uint32_t count, uint8_t *buffer,
+               bool no_increment)
 {
        int retval;
 
@@ -1043,7 +1043,9 @@ static int arm11_write_memory_inner(struct target *target,
                                /* strb    r1, [r0], #1 */
                                /* strb    r1, [r0] */
                                retval = arm11_run_instr_no_data1(arm11,
-                                       !arm11_config_memrw_no_increment ? 0xe4c01001 : 0xe5c01000);
+                                       !no_increment
+                                               ? 0xe4c01001
+                                               : 0xe5c01000);
                                if (retval != ERROR_OK)
                                        return retval;
                        }
@@ -1068,7 +1070,9 @@ static int arm11_write_memory_inner(struct target *target,
                                /* strh    r1, [r0], #2 */
                                /* strh    r1, [r0] */
                                retval = arm11_run_instr_no_data1(arm11,
-                                       !arm11_config_memrw_no_increment ? 0xe0c010b2 : 0xe1c010b0);
+                                       !no_increment
+                                               ? 0xe0c010b2
+                                               : 0xe1c010b0);
                                if (retval != ERROR_OK)
                                        return retval;
                        }
@@ -1077,7 +1081,7 @@ static int arm11_write_memory_inner(struct target *target,
                }
 
        case 4: {
-               uint32_t instr = !arm11_config_memrw_no_increment ? 0xeca05e01 : 0xed805e00;
+               uint32_t instr = !no_increment ? 0xeca05e01 : 0xed805e00;
 
                /** \todo TODO: buffer cast to uint32_t* causes alignment warnings */
                uint32_t *words = (uint32_t*)buffer;
@@ -1104,7 +1108,7 @@ static int arm11_write_memory_inner(struct target *target,
        }
 
        /* r0 verification */
-       if (!arm11_config_memrw_no_increment)
+       if (!no_increment)
        {
                uint32_t r0;
 
@@ -1132,9 +1136,14 @@ static int arm11_write_memory_inner(struct target *target,
 }
 
 static int arm11_write_memory(struct target *target,
-               uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+               uint32_t address, uint32_t size,
+               uint32_t count, uint8_t *buffer)
 {
-       return arm11_write_memory_inner(target, address, size, count, buffer, false);
+       /* pointer increment matters only for multi-unit writes ...
+        * not e.g. to a "reset the chip" controller.
+        */
+       return arm11_write_memory_inner(target, address, size,
+                       count, buffer, count == 1);
 }
 
 /* write target memory in multiples of 4 byte, optimized for writing large quantities of data */
@@ -1193,22 +1202,6 @@ static int arm11_remove_breakpoint(struct target *target,
        return ERROR_OK;
 }
 
-static int arm11_add_watchpoint(struct target *target,
-               struct watchpoint *watchpoint)
-{
-       LOG_WARNING("Not implemented: %s", __func__);
-
-       return ERROR_FAIL;
-}
-
-static int arm11_remove_watchpoint(struct target *target,
-               struct watchpoint *watchpoint)
-{
-       LOG_WARNING("Not implemented: %s", __func__);
-
-       return ERROR_FAIL;
-}
-
 static int arm11_target_create(struct target *target, Jim_Interp *interp)
 {
        struct arm11_common *arm11;
@@ -1500,71 +1493,6 @@ COMMAND_HANDLER(arm11_handle_vcr)
        return ERROR_OK;
 }
 
-static const uint32_t arm11_coproc_instruction_limits[] =
-{
-       15,                             /* coprocessor */
-       7,                              /* opcode 1 */
-       15,                             /* CRn */
-       15,                             /* CRm */
-       7,                              /* opcode 2 */
-       0xFFFFFFFF,             /* value */
-};
-
-static int arm11_mrc_inner(struct target *target, int cpnum,
-               uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm,
-               uint32_t *value, bool read)
-{
-       int retval;
-       struct arm11_common *arm11 = target_to_arm11(target);
-
-       if (target->state != TARGET_HALTED)
-       {
-               LOG_ERROR("Target not halted");
-               return ERROR_FAIL;
-       }
-
-       uint32_t instr = 0xEE000010     |
-               (cpnum <<  8) |
-               (op1 << 21) |
-               (CRn << 16) |
-               (CRm <<  0) |
-               (op2 <<  5);
-
-       if (read)
-               instr |= 0x00100000;
-
-       retval = arm11_run_instr_data_prepare(arm11);
-       if (retval != ERROR_OK)
-               return retval;
-
-       if (read)
-       {
-               retval = arm11_run_instr_data_from_core_via_r0(arm11, instr, value);
-               if (retval != ERROR_OK)
-                       return retval;
-       }
-       else
-       {
-               retval = arm11_run_instr_data_to_core_via_r0(arm11, instr, *value);
-               if (retval != ERROR_OK)
-                       return retval;
-       }
-
-       return arm11_run_instr_data_finish(arm11);
-}
-
-static int arm11_mrc(struct target *target, int cpnum,
-               uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
-{
-       return arm11_mrc_inner(target, cpnum, op1, op2, CRn, CRm, value, true);
-}
-
-static int arm11_mcr(struct target *target, int cpnum,
-               uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value)
-{
-       return arm11_mrc_inner(target, cpnum, op1, op2, CRn, CRm, &value, false);
-}
-
 static const struct command_registration arm11_mw_command_handlers[] = {
        {
                .name = "burst",
@@ -1616,6 +1544,12 @@ static const struct command_registration arm11_any_command_handlers[] = {
        COMMAND_REGISTRATION_DONE
 };
 static const struct command_registration arm11_command_handlers[] = {
+       {
+               .chain = arm_command_handlers,
+       },
+       {
+               .chain = etm_command_handlers,
+       },
        {
                .name = "arm11",
                .mode = COMMAND_ANY,
@@ -1625,13 +1559,6 @@ static const struct command_registration arm11_command_handlers[] = {
        COMMAND_REGISTRATION_DONE
 };
 
-static int arm11_register_commands(struct command_context *cmd_ctx)
-{
-       armv4_5_register_commands(cmd_ctx);
-       etm_register_commands(cmd_ctx);
-       return register_commands(cmd_ctx, NULL, arm11_command_handlers);
-}
-
 /** Holds methods for ARM11xx targets. */
 struct target_type arm11_target = {
        .name =                 "arm11",
@@ -1661,16 +1588,11 @@ struct target_type arm11_target = {
 
        .add_breakpoint =       arm11_add_breakpoint,
        .remove_breakpoint =    arm11_remove_breakpoint,
-       .add_watchpoint =       arm11_add_watchpoint,
-       .remove_watchpoint =    arm11_remove_watchpoint,
 
        .run_algorithm =        armv4_5_run_algorithm,
 
-       .register_commands =    arm11_register_commands,
+       .commands =             arm11_command_handlers,
        .target_create =        arm11_target_create,
        .init_target =          arm11_init_target,
        .examine =              arm11_examine,
-
-       .mrc =                  arm11_mrc,
-       .mcr =                  arm11_mcr,
 };

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