* 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. *
* *
- * ARMv7-M Architecture, Application Level Reference Manual *
+ * ARMv7-M Architecture, Application Level Reference Manual *
* ARM DDI 0405C (September 2008) *
* *
***************************************************************************/
ARMV7M_xPSR,
};
-#ifdef ARMV7_GDB_HACKS
-uint8_t armv7m_gdb_dummy_cpsr_value[] = {0, 0, 0, 0};
-
-struct reg armv7m_gdb_dummy_cpsr_reg = {
- .name = "GDB dummy cpsr register",
- .value = armv7m_gdb_dummy_cpsr_value,
- .dirty = 0,
- .valid = 1,
- .size = 32,
- .arch_info = NULL,
-};
-#endif
-
/*
* These registers are not memory-mapped. The ARMv7-M profile includes
* memory mapped registers too, such as for the NVIC (interrupt controller)
unsigned id;
const char *name;
unsigned bits;
+ enum reg_type type;
+ const char *group;
+ const char *feature;
} armv7m_regs[] = {
- { ARMV7M_R0, "r0", 32 },
- { ARMV7M_R1, "r1", 32 },
- { ARMV7M_R2, "r2", 32 },
- { ARMV7M_R3, "r3", 32 },
-
- { ARMV7M_R4, "r4", 32 },
- { ARMV7M_R5, "r5", 32 },
- { ARMV7M_R6, "r6", 32 },
- { ARMV7M_R7, "r7", 32 },
-
- { ARMV7M_R8, "r8", 32 },
- { ARMV7M_R9, "r9", 32 },
- { ARMV7M_R10, "r10", 32 },
- { ARMV7M_R11, "r11", 32 },
-
- { ARMV7M_R12, "r12", 32 },
- { ARMV7M_R13, "sp", 32 },
- { ARMV7M_R14, "lr", 32 },
- { ARMV7M_PC, "pc", 32 },
-
- { ARMV7M_xPSR, "xPSR", 32 },
- { ARMV7M_MSP, "msp", 32 },
- { ARMV7M_PSP, "psp", 32 },
-
- { ARMV7M_PRIMASK, "primask", 1 },
- { ARMV7M_BASEPRI, "basepri", 8 },
- { ARMV7M_FAULTMASK, "faultmask", 1 },
- { ARMV7M_CONTROL, "control", 2 },
+ { ARMV7M_R0, "r0", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R1, "r1", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R2, "r2", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R3, "r3", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R4, "r4", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R5, "r5", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R6, "r6", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R7, "r7", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R8, "r8", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R9, "r9", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R10, "r10", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R11, "r11", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R12, "r12", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R13, "sp", 32, REG_TYPE_DATA_PTR, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_R14, "lr", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_PC, "pc", 32, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.arm.m-profile" },
+ { ARMV7M_xPSR, "xPSR", 32, REG_TYPE_INT, "general", "org.gnu.gdb.arm.m-profile" },
+
+ { ARMV7M_MSP, "msp", 32, REG_TYPE_DATA_PTR, "system", "org.gnu.gdb.arm.m-system" },
+ { ARMV7M_PSP, "psp", 32, REG_TYPE_DATA_PTR, "system", "org.gnu.gdb.arm.m-system" },
+
+ { ARMV7M_PRIMASK, "primask", 1, REG_TYPE_INT8, "system", "org.gnu.gdb.arm.m-system" },
+ { ARMV7M_BASEPRI, "basepri", 8, REG_TYPE_INT8, "system", "org.gnu.gdb.arm.m-system" },
+ { ARMV7M_FAULTMASK, "faultmask", 1, REG_TYPE_INT8, "system", "org.gnu.gdb.arm.m-system" },
+ { ARMV7M_CONTROL, "control", 2, REG_TYPE_INT8, "system", "org.gnu.gdb.arm.m-system" },
};
#define ARMV7M_NUM_REGS ARRAY_SIZE(armv7m_regs)
/**
* Returns generic ARM userspace registers to GDB.
- * GDB doesn't quite understand that most ARMs don't have floating point
- * hardware, so this also fakes a set of long-obsolete FPA registers that
- * are not used in EABI based software stacks.
*/
-int armv7m_get_gdb_reg_list(struct target *target, struct reg **reg_list[], int *reg_list_size)
+int armv7m_get_gdb_reg_list(struct target *target, struct reg **reg_list[],
+ int *reg_list_size, enum target_register_class reg_class)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
int i;
- *reg_list_size = 26;
+ if (reg_class == REG_CLASS_ALL)
+ *reg_list_size = ARMV7M_NUM_REGS;
+ else
+ *reg_list_size = 17;
+
*reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
+ if (*reg_list == NULL)
+ return ERROR_FAIL;
- /*
- * GDB register packet format for ARM:
- * - the first 16 registers are r0..r15
- * - (obsolete) 8 FPA registers
- * - (obsolete) FPA status
- * - CPSR
- */
- for (i = 0; i < 16; i++)
+ for (i = 0; i < *reg_list_size; i++)
(*reg_list)[i] = &armv7m->arm.core_cache->reg_list[i];
- for (i = 16; i < 24; i++)
- (*reg_list)[i] = &arm_gdb_dummy_fp_reg;
- (*reg_list)[24] = &arm_gdb_dummy_fps_reg;
-
-#ifdef ARMV7_GDB_HACKS
- /* use dummy cpsr reg otherwise gdb may try and set the thumb bit */
- (*reg_list)[25] = &armv7m_gdb_dummy_cpsr_reg;
-
- /* ARMV7M is always in thumb mode, try to make GDB understand this
- * if it does not support this arch */
- *((char *)armv7m->arm.pc->value) |= 1;
-#else
- (*reg_list)[25] = &armv7m->core_cache->reg_list[ARMV7M_xPSR];
-#endif
-
return ERROR_OK;
}
struct reg_cache *cache = malloc(sizeof(struct reg_cache));
struct reg *reg_list = calloc(num_regs, sizeof(struct reg));
struct arm_reg *arch_info = calloc(num_regs, sizeof(struct arm_reg));
+ struct reg_feature *feature;
int i;
-#ifdef ARMV7_GDB_HACKS
- register_init_dummy(&armv7m_gdb_dummy_cpsr_reg);
-#endif
-
/* Build the process context cache */
cache->name = "arm v7m registers";
cache->next = NULL;
reg_list[i].valid = 0;
reg_list[i].type = &armv7m_reg_type;
reg_list[i].arch_info = &arch_info[i];
+
+ reg_list[i].group = armv7m_regs[i].group;
+ reg_list[i].number = i;
+ reg_list[i].exist = true;
+ reg_list[i].caller_save = true; /* gdb defaults to true */
+
+ feature = calloc(1, sizeof(struct reg_feature));
+ if (feature) {
+ feature->name = armv7m_regs[i].feature;
+ reg_list[i].feature = feature;
+ } else
+ LOG_ERROR("unable to allocate feature list");
+
+ reg_list[i].reg_data_type = calloc(1, sizeof(struct reg_data_type));
+ if (reg_list[i].reg_data_type)
+ reg_list[i].reg_data_type->type = armv7m_regs[i].type;
+ else
+ LOG_ERROR("unable to allocate reg type list");
}
arm->cpsr = reg_list + ARMV7M_xPSR;
arm->pc = reg_list + ARMV7M_PC;
arm->core_cache = cache;
+
return cache;
}
/* see contrib/loaders/checksum/armv7m_crc.s for src */
- static const uint8_t cortex_m3_crc_code[] = {
+ static const uint8_t cortex_m_crc_code[] = {
/* main: */
0x02, 0x46, /* mov r2, r0 */
0x00, 0x20, /* movs r0, #0 */
0xB7, 0x1D, 0xC1, 0x04 /* CRC32XOR: .word 0x04c11db7 */
};
- retval = target_alloc_working_area(target, sizeof(cortex_m3_crc_code), &crc_algorithm);
+ retval = target_alloc_working_area(target, sizeof(cortex_m_crc_code), &crc_algorithm);
if (retval != ERROR_OK)
return retval;
retval = target_write_buffer(target, crc_algorithm->address,
- sizeof(cortex_m3_crc_code), (uint8_t *)cortex_m3_crc_code);
+ sizeof(cortex_m_crc_code), (uint8_t *)cortex_m_crc_code);
if (retval != ERROR_OK)
goto cleanup;
armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
- armv7m_info.core_mode = ARM_MODE_ANY;
+ armv7m_info.core_mode = ARM_MODE_THREAD;
init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT);
init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
int timeout = 20000 * (1 + (count / (1024 * 1024)));
retval = target_run_algorithm(target, 0, NULL, 2, reg_params, crc_algorithm->address,
- crc_algorithm->address + (sizeof(cortex_m3_crc_code) - 6),
+ crc_algorithm->address + (sizeof(cortex_m_crc_code) - 6),
timeout, &armv7m_info);
if (retval == ERROR_OK)
*checksum = buf_get_u32(reg_params[0].value, 0, 32);
else
- LOG_ERROR("error executing cortex_m3 crc algorithm");
+ LOG_ERROR("error executing cortex_m crc algorithm");
destroy_reg_param(®_params[0]);
destroy_reg_param(®_params[1]);
return retval;
armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
- armv7m_info.core_mode = ARM_MODE_ANY;
+ armv7m_info.core_mode = ARM_MODE_THREAD;
init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
buf_set_u32(reg_params[0].value, 0, 32, address);
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