armv7m: add FPU registers support
[openocd.git] / src / target / arm7_9_common.c
index 3461da4c48a3689f93ac5156ce9c600d10197333..617ee78406224922c3833e54017b8a383c75dbf2 100644 (file)
@@ -26,7 +26,7 @@
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  ***************************************************************************/
 
 #ifdef HAVE_CONFIG_H
@@ -103,7 +103,7 @@ static void arm7_9_assign_wp(struct arm7_9_common *arm7_9, struct breakpoint *br
                arm7_9->wp_available--;
        } else
                LOG_ERROR("BUG: no hardware comparator available");
-       LOG_DEBUG("BPID: %d (0x%08" PRIx32 ") using hw wp: %d",
+       LOG_DEBUG("BPID: %" PRId32 " (0x%08" PRIx32 ") using hw wp: %d",
                        breakpoint->unique_id,
                        breakpoint->address,
                        breakpoint->set);
@@ -189,7 +189,7 @@ static int arm7_9_set_breakpoint(struct target *target, struct breakpoint *break
        struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
        int retval = ERROR_OK;
 
-       LOG_DEBUG("BPID: %d, Address: 0x%08" PRIx32 ", Type: %d",
+       LOG_DEBUG("BPID: %" PRId32 ", Address: 0x%08" PRIx32 ", Type: %d",
                breakpoint->unique_id,
                breakpoint->address,
                breakpoint->type);
@@ -301,7 +301,7 @@ static int arm7_9_unset_breakpoint(struct target *target, struct breakpoint *bre
        int retval = ERROR_OK;
        struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
 
-       LOG_DEBUG("BPID: %d, Address: 0x%08" PRIx32,
+       LOG_DEBUG("BPID: %" PRId32 ", Address: 0x%08" PRIx32,
                breakpoint->unique_id,
                breakpoint->address);
 
@@ -311,7 +311,7 @@ static int arm7_9_unset_breakpoint(struct target *target, struct breakpoint *bre
        }
 
        if (breakpoint->type == BKPT_HARD) {
-               LOG_DEBUG("BPID: %d Releasing hw wp: %d",
+               LOG_DEBUG("BPID: %" PRId32 " Releasing hw wp: %d",
                        breakpoint->unique_id,
                        breakpoint->set);
                if (breakpoint->set == 1) {
@@ -1719,7 +1719,7 @@ int arm7_9_resume(struct target *target,
                breakpoint = breakpoint_find(target,
                                buf_get_u32(arm->pc->value, 0, 32));
                if (breakpoint != NULL) {
-                       LOG_DEBUG("unset breakpoint at 0x%8.8" PRIx32 " (id: %d)",
+                       LOG_DEBUG("unset breakpoint at 0x%8.8" PRIx32 " (id: %" PRId32,
                                breakpoint->address,
                                breakpoint->unique_id);
                        retval = arm7_9_unset_breakpoint(target, breakpoint);
@@ -2033,7 +2033,7 @@ static int arm7_9_read_core_reg(struct target *target, struct reg *r,
 }
 
 static int arm7_9_write_core_reg(struct target *target, struct reg *r,
-       int num, enum arm_mode mode, uint32_t value)
+       int num, enum arm_mode mode, uint8_t *value)
 {
        uint32_t reg[16];
        struct arm_reg *areg = r->arch_info;
@@ -2058,7 +2058,7 @@ static int arm7_9_write_core_reg(struct target *target, struct reg *r,
 
        if ((num >= 0) && (num <= 15)) {
                /* write a normal core register */
-               reg[num] = value;
+               reg[num] = buf_get_u32(value, 0, 32);
 
                arm7_9->write_core_regs(target, 1 << num, reg);
        } else {
@@ -2067,11 +2067,12 @@ static int arm7_9_write_core_reg(struct target *target, struct reg *r,
                */
                int spsr = (areg->mode != ARM_MODE_ANY);
 
+               uint32_t t = buf_get_u32(value, 0, 32);
                /* if we're writing the CPSR, mask the T bit */
                if (!spsr)
-                       value &= ~0x20;
+                       t &= ~0x20;
 
-               arm7_9->write_xpsr(target, value, spsr);
+               arm7_9->write_xpsr(target, t, spsr);
        }
 
        r->valid = 1;
@@ -2469,6 +2470,37 @@ int arm7_9_write_memory(struct target *target,
        return ERROR_OK;
 }
 
+int arm7_9_write_memory_opt(struct target *target,
+       uint32_t address,
+       uint32_t size,
+       uint32_t count,
+       const uint8_t *buffer)
+{
+       struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+       int retval;
+
+       if (size == 4 && count > 32 && arm7_9->bulk_write_memory) {
+               /* Attempt to do a bulk write */
+               retval = arm7_9->bulk_write_memory(target, address, count, buffer);
+
+               if (retval == ERROR_OK)
+                       return ERROR_OK;
+       }
+
+       return arm7_9->write_memory(target, address, size, count, buffer);
+}
+
+int arm7_9_write_memory_no_opt(struct target *target,
+       uint32_t address,
+       uint32_t size,
+       uint32_t count,
+       const uint8_t *buffer)
+{
+       struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+
+       return arm7_9->write_memory(target, address, size, count, buffer);
+}
+
 static int dcc_count;
 static const uint8_t *dcc_buffer;
 
@@ -2545,10 +2577,12 @@ int arm7_9_bulk_write_memory(struct target *target,
 {
        int retval;
        struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
-       int i;
+
+       if (address % 4 != 0)
+               return ERROR_TARGET_UNALIGNED_ACCESS;
 
        if (!arm7_9->dcc_downloads)
-               return target_write_memory(target, address, 4, count, buffer);
+               return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 
        /* regrab previously allocated working_area, or allocate a new one */
        if (!arm7_9->dcc_working_area) {
@@ -2557,15 +2591,15 @@ int arm7_9_bulk_write_memory(struct target *target,
                /* make sure we have a working area */
                if (target_alloc_working_area(target, 24, &arm7_9->dcc_working_area) != ERROR_OK) {
                        LOG_INFO("no working area available, falling back to memory writes");
-                       return target_write_memory(target, address, 4, count, buffer);
+                       return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
                }
 
                /* copy target instructions to target endianness */
-               for (i = 0; i < 6; i++)
-                       target_buffer_set_u32(target, dcc_code_buf + i*4, dcc_code[i]);
+               target_buffer_set_u32_array(target, dcc_code_buf, ARRAY_SIZE(dcc_code), dcc_code);
 
-               /* write DCC code to working area */
-               retval = target_write_memory(target,
+               /* write DCC code to working area, using the non-optimized
+                * memory write to avoid ending up here again */
+               retval = arm7_9_write_memory_no_opt(target,
                                arm7_9->dcc_working_area->address, 4, 6, dcc_code_buf);
                if (retval != ERROR_OK)
                        return retval;
@@ -2659,6 +2693,46 @@ int arm7_9_check_reset(struct target *target)
        return ERROR_OK;
 }
 
+int arm7_9_endianness_callback(jtag_callback_data_t pu8_in,
+               jtag_callback_data_t i_size, jtag_callback_data_t i_be,
+               jtag_callback_data_t i_flip)
+{
+       uint8_t *in = (uint8_t *)pu8_in;
+       int size = (int)i_size;
+       int be = (int)i_be;
+       int flip = (int)i_flip;
+       uint32_t readback;
+
+       switch (size) {
+       case 4:
+               readback = le_to_h_u32(in);
+               if (flip)
+                       readback = flip_u32(readback, 32);
+               if (be)
+                       h_u32_to_be(in, readback);
+               else
+                       h_u32_to_le(in, readback);
+               break;
+       case 2:
+               readback = le_to_h_u16(in);
+               if (flip)
+                       readback = flip_u32(readback, 16);
+               if (be)
+                       h_u16_to_be(in, readback & 0xffff);
+               else
+                       h_u16_to_le(in, readback & 0xffff);
+               break;
+       case 1:
+               readback = *in;
+               if (flip)
+                       readback = flip_u32(readback, 8);
+               *in = readback & 0xff;
+               break;
+       }
+
+       return ERROR_OK;
+}
+
 COMMAND_HANDLER(handle_arm7_9_dbgrq_command)
 {
        struct target *target = get_current_target(CMD_CTX);
@@ -2766,6 +2840,7 @@ int arm7_9_init_arch_info(struct target *target, struct arm7_9_common *arm7_9)
        arm7_9->dcc_downloads = false;
 
        arm->arch_info = arm7_9;
+       arm->core_type = ARM_MODE_ANY;
        arm->read_core_reg = arm7_9_read_core_reg;
        arm->write_core_reg = arm7_9_write_core_reg;
        arm->full_context = arm7_9_full_context;

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