#include "target_type.h"
#include "armv8_opcodes.h"
#include "armv8_cache.h"
+#include "arm_semihosting.h"
#include <helper/time_support.h>
enum restart_mode {
HALT_SYNC,
};
+struct aarch64_private_config {
+ struct adiv5_private_config adiv5_config;
+ struct arm_cti *cti;
+};
+
static int aarch64_poll(struct target *target);
static int aarch64_debug_entry(struct target *target);
static int aarch64_restore_context(struct target *target, bool bpwp);
case ARMV8_64_EL3T:
instr = ARMV8_MSR_GP(SYSTEM_SCTLR_EL3, 0);
break;
+
+ case ARM_MODE_SVC:
+ case ARM_MODE_ABT:
+ case ARM_MODE_FIQ:
+ case ARM_MODE_IRQ:
+ instr = ARMV4_5_MCR(15, 0, 0, 1, 0, 0);
+ break;
+
default:
- LOG_DEBUG("unknown cpu state 0x%x" PRIx32, armv8->arm.core_state);
+ LOG_DEBUG("unknown cpu state 0x%" PRIx32, armv8->arm.core_mode);
break;
}
struct target *curr;
if (debug_reason == DBG_REASON_NOTHALTED) {
- LOG_INFO("Halting remaining targets in SMP group");
+ LOG_DEBUG("Halting remaining targets in SMP group");
aarch64_halt_smp(target, true);
}
if (target->smp)
update_halt_gdb(target, debug_reason);
+ if (arm_semihosting(target, &retval) != 0)
+ return retval;
+
switch (prev_target_state) {
case TARGET_RUNNING:
case TARGET_UNKNOWN:
static int aarch64_halt(struct target *target)
{
+ struct armv8_common *armv8 = target_to_armv8(target);
+ armv8->last_run_control_op = ARMV8_RUNCONTROL_HALT;
+
if (target->smp)
return aarch64_halt_smp(target, false);
armv8->debug_base + CPUV8_DBG_DSCR, dscr);
}
- /* clear sticky bits in PRSR, SDR is now 0 */
- retval = mem_ap_read_atomic_u32(armv8->debug_ap,
- armv8->debug_base + CPUV8_DBG_PRSR, &tmp);
+ if (retval == ERROR_OK) {
+ /* clear sticky bits in PRSR, SDR is now 0 */
+ retval = mem_ap_read_atomic_u32(armv8->debug_ap,
+ armv8->debug_base + CPUV8_DBG_PRSR, &tmp);
+ }
return retval;
}
int retval = 0;
uint64_t addr = address;
+ struct armv8_common *armv8 = target_to_armv8(target);
+ armv8->last_run_control_op = ARMV8_RUNCONTROL_RESUME;
+
if (target->state != TARGET_HALTED)
return ERROR_TARGET_NOT_HALTED;
int retval;
uint32_t edecr;
+ armv8->last_run_control_op = ARMV8_RUNCONTROL_STEP;
+
if (target->state != TARGET_HALTED) {
LOG_WARNING("target not halted");
return ERROR_TARGET_NOT_HALTED;
if (retval != ERROR_OK)
return retval;
- if (target->smp && !handle_breakpoints) {
+ if (target->smp && (current == 1)) {
/*
* isolate current target so that it doesn't get resumed
* together with the others
if (retval != ERROR_OK)
return retval;
+ retval = aarch64_init_debug_access(target);
+ if (retval != ERROR_OK)
+ return retval;
+
if (target->reset_halt) {
if (target->state != TARGET_HALTED) {
LOG_WARNING("%s: ran after reset and before halt ...",
target_name(target));
retval = target_halt(target);
- if (retval != ERROR_OK)
- return retval;
}
}
- return aarch64_init_debug_access(target);
+ return retval;
}
static int aarch64_write_cpu_memory_slow(struct target *target,
dscr = (dscr & ~DSCR_MA);
retval = mem_ap_write_atomic_u32(armv8->debug_ap,
armv8->debug_base + CPUV8_DBG_DSCR, dscr);
+ if (retval != ERROR_OK)
+ return retval;
if (arm->core_state == ARM_STATE_AARCH64) {
/* Write X0 with value 'address' using write procedure */
/* Write R0 with value 'address' using write procedure */
/* Step 1.a+b - Write the address for read access into DBGDTRRX */
/* Step 1.c - Copy value from DTR to R0 using instruction mrc DBGDTRTXint, r0 */
- dpm->instr_write_data_dcc(dpm,
+ retval = dpm->instr_write_data_dcc(dpm,
ARMV4_5_MRC(14, 0, 0, 0, 5, 0), address);
}
+ if (retval != ERROR_OK)
+ return retval;
+
if (size == 4 && (address % 4) == 0)
retval = aarch64_write_cpu_memory_fast(target, count, buffer, &dscr);
else
if (dscr & (DSCR_ERR | DSCR_SYS_ERROR_PEND)) {
/* Abort occurred - clear it and exit */
LOG_ERROR("abort occurred - dscr = 0x%08" PRIx32, dscr);
- armv8_dpm_handle_exception(dpm);
+ armv8_dpm_handle_exception(dpm, true);
return ERROR_FAIL;
}
retval = dpm->instr_execute(dpm, ARMV4_5_MCR(14, 0, 0, 0, 5, 0));
}
+ if (retval != ERROR_OK)
+ return retval;
+
/* Step 1.e - Change DCC to memory mode */
*dscr |= DSCR_MA;
retval = mem_ap_write_atomic_u32(armv8->debug_ap,
armv8->debug_base + CPUV8_DBG_DSCR, *dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
/* Step 1.f - read DBGDTRTX and discard the value */
retval = mem_ap_read_atomic_u32(armv8->debug_ap,
armv8->debug_base + CPUV8_DBG_DTRTX, &value);
+ if (retval != ERROR_OK)
+ return retval;
count--;
/* Read the data - Each read of the DTRTX register causes the instruction to be reissued
/* Read DSCR */
retval = mem_ap_read_atomic_u32(armv8->debug_ap,
armv8->debug_base + CPUV8_DBG_DSCR, &dscr);
+ if (retval != ERROR_OK)
+ return retval;
/* This algorithm comes from DDI0487A.g, chapter J9.1 */
/* Set Normal access mode */
dscr &= ~DSCR_MA;
- retval += mem_ap_write_atomic_u32(armv8->debug_ap,
+ retval = mem_ap_write_atomic_u32(armv8->debug_ap,
armv8->debug_base + CPUV8_DBG_DSCR, dscr);
+ if (retval != ERROR_OK)
+ return retval;
if (arm->core_state == ARM_STATE_AARCH64) {
/* Write X0 with value 'address' using write procedure */
/* Step 1.a+b - Write the address for read access into DBGDTR_EL0 */
/* Step 1.c - Copy value from DTR to R0 using instruction mrs DBGDTR_EL0, x0 */
- retval += dpm->instr_write_data_dcc_64(dpm,
+ retval = dpm->instr_write_data_dcc_64(dpm,
ARMV8_MRS(SYSTEM_DBG_DBGDTR_EL0, 0), address);
} else {
/* Write R0 with value 'address' using write procedure */
/* Step 1.a+b - Write the address for read access into DBGDTRRXint */
/* Step 1.c - Copy value from DTR to R0 using instruction mrc DBGDTRTXint, r0 */
- retval += dpm->instr_write_data_dcc(dpm,
+ retval = dpm->instr_write_data_dcc(dpm,
ARMV4_5_MRC(14, 0, 0, 0, 5, 0), address);
}
+ if (retval != ERROR_OK)
+ return retval;
+
if (size == 4 && (address % 4) == 0)
retval = aarch64_read_cpu_memory_fast(target, count, buffer, &dscr);
else
if (dscr & (DSCR_ERR | DSCR_SYS_ERROR_PEND)) {
/* Abort occurred - clear it and exit */
LOG_ERROR("abort occurred - dscr = 0x%08" PRIx32, dscr);
- armv8_dpm_handle_exception(dpm);
+ armv8_dpm_handle_exception(dpm, true);
return ERROR_FAIL;
}
struct aarch64_common *aarch64 = target_to_aarch64(target);
struct armv8_common *armv8 = &aarch64->armv8_common;
struct adiv5_dap *swjdp = armv8->arm.dap;
- uint32_t cti_base;
+ struct aarch64_private_config *pc;
int i;
int retval = ERROR_OK;
uint64_t debug, ttypr;
uint32_t tmp0, tmp1, tmp2, tmp3;
debug = ttypr = cpuid = 0;
- retval = dap_dp_init(swjdp);
- if (retval != ERROR_OK)
- return retval;
-
/* Search for the APB-AB - it is needed for access to debug registers */
retval = dap_find_ap(swjdp, AP_TYPE_APB_AP, &armv8->debug_ap);
if (retval != ERROR_OK) {
LOG_DEBUG("ttypr = 0x%08" PRIx64, ttypr);
LOG_DEBUG("debug = 0x%08" PRIx64, debug);
- if (target->ctibase == 0) {
- /* assume a v8 rom table layout */
- cti_base = armv8->debug_base + 0x10000;
- LOG_INFO("Target ctibase is not set, assuming 0x%0" PRIx32, cti_base);
- } else
- cti_base = target->ctibase;
+ if (target->private_config == NULL)
+ return ERROR_FAIL;
- armv8->cti = arm_cti_create(armv8->debug_ap, cti_base);
- if (armv8->cti == NULL)
+ pc = (struct aarch64_private_config *)target->private_config;
+ if (pc->cti == NULL)
return ERROR_FAIL;
+ armv8->cti = pc->cti;
+
retval = aarch64_dpm_setup(aarch64, debug);
if (retval != ERROR_OK)
return retval;
struct target *target)
{
/* examine_first() does a bunch of this */
+ arm_semihosting_init(target);
return ERROR_OK;
}
static int aarch64_init_arch_info(struct target *target,
- struct aarch64_common *aarch64, struct jtag_tap *tap)
+ struct aarch64_common *aarch64, struct adiv5_dap *dap)
{
struct armv8_common *armv8 = &aarch64->armv8_common;
/* Setup struct aarch64_common */
aarch64->common_magic = AARCH64_COMMON_MAGIC;
- /* tap has no dap initialized */
- if (!tap->dap) {
- tap->dap = dap_init();
- tap->dap->tap = tap;
- }
- armv8->arm.dap = tap->dap;
+ armv8->arm.dap = dap;
/* register arch-specific functions */
armv8->examine_debug_reason = NULL;
static int aarch64_target_create(struct target *target, Jim_Interp *interp)
{
+ struct aarch64_private_config *pc = target->private_config;
struct aarch64_common *aarch64 = calloc(1, sizeof(struct aarch64_common));
- return aarch64_init_arch_info(target, aarch64, target->tap);
+ if (adiv5_verify_config(&pc->adiv5_config) != ERROR_OK)
+ return ERROR_FAIL;
+
+ return aarch64_init_arch_info(target, aarch64, pc->adiv5_config.dap);
+}
+
+static void aarch64_deinit_target(struct target *target)
+{
+ struct aarch64_common *aarch64 = target_to_aarch64(target);
+ struct armv8_common *armv8 = &aarch64->armv8_common;
+ struct arm_dpm *dpm = &armv8->dpm;
+
+ armv8_free_reg_cache(target);
+ free(aarch64->brp_list);
+ free(dpm->dbp);
+ free(dpm->dwp);
+ free(target->private_config);
+ free(aarch64);
}
static int aarch64_mmu(struct target *target, int *enabled)
return armv8_mmu_translate_va_pa(target, virt, phys, 1);
}
+/*
+ * private target configuration items
+ */
+enum aarch64_cfg_param {
+ CFG_CTI,
+};
+
+static const Jim_Nvp nvp_config_opts[] = {
+ { .name = "-cti", .value = CFG_CTI },
+ { .name = NULL, .value = -1 }
+};
+
+static int aarch64_jim_configure(struct target *target, Jim_GetOptInfo *goi)
+{
+ struct aarch64_private_config *pc;
+ Jim_Nvp *n;
+ int e;
+
+ pc = (struct aarch64_private_config *)target->private_config;
+ if (pc == NULL) {
+ pc = calloc(1, sizeof(struct aarch64_private_config));
+ target->private_config = pc;
+ }
+
+ /*
+ * Call adiv5_jim_configure() to parse the common DAP options
+ * It will return JIM_CONTINUE if it didn't find any known
+ * options, JIM_OK if it correctly parsed the topmost option
+ * and JIM_ERR if an error occured during parameter evaluation.
+ * For JIM_CONTINUE, we check our own params.
+ */
+ e = adiv5_jim_configure(target, goi);
+ if (e != JIM_CONTINUE)
+ return e;
+
+ /* parse config or cget options ... */
+ if (goi->argc > 0) {
+ Jim_SetEmptyResult(goi->interp);
+
+ /* check first if topmost item is for us */
+ e = Jim_Nvp_name2value_obj(goi->interp, nvp_config_opts,
+ goi->argv[0], &n);
+ if (e != JIM_OK)
+ return JIM_CONTINUE;
+
+ e = Jim_GetOpt_Obj(goi, NULL);
+ if (e != JIM_OK)
+ return e;
+
+ switch (n->value) {
+ case CFG_CTI: {
+ if (goi->isconfigure) {
+ Jim_Obj *o_cti;
+ struct arm_cti *cti;
+ e = Jim_GetOpt_Obj(goi, &o_cti);
+ if (e != JIM_OK)
+ return e;
+ cti = cti_instance_by_jim_obj(goi->interp, o_cti);
+ if (cti == NULL) {
+ Jim_SetResultString(goi->interp, "CTI name invalid!", -1);
+ return JIM_ERR;
+ }
+ pc->cti = cti;
+ } else {
+ if (goi->argc != 0) {
+ Jim_WrongNumArgs(goi->interp,
+ goi->argc, goi->argv,
+ "NO PARAMS");
+ return JIM_ERR;
+ }
+
+ if (pc == NULL || pc->cti == NULL) {
+ Jim_SetResultString(goi->interp, "CTI not configured", -1);
+ return JIM_ERR;
+ }
+ Jim_SetResultString(goi->interp, arm_cti_name(pc->cti), -1);
+ }
+ break;
+ }
+
+ default:
+ return JIM_CONTINUE;
+ }
+ }
+
+ return JIM_OK;
+}
+
COMMAND_HANDLER(aarch64_handle_cache_info_command)
{
struct target *target = get_current_target(CMD_CTX);
return ERROR_OK;
}
+static int jim_mcrmrc(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
+{
+ struct command_context *context;
+ struct target *target;
+ struct arm *arm;
+ int retval;
+ bool is_mcr = false;
+ int arg_cnt = 0;
+
+ if (Jim_CompareStringImmediate(interp, argv[0], "mcr")) {
+ is_mcr = true;
+ arg_cnt = 7;
+ } else {
+ arg_cnt = 6;
+ }
+
+ context = current_command_context(interp);
+ assert(context != NULL);
+
+ target = get_current_target(context);
+ if (target == NULL) {
+ LOG_ERROR("%s: no current target", __func__);
+ return JIM_ERR;
+ }
+ if (!target_was_examined(target)) {
+ LOG_ERROR("%s: not yet examined", target_name(target));
+ return JIM_ERR;
+ }
+
+ arm = target_to_arm(target);
+ if (!is_arm(arm)) {
+ LOG_ERROR("%s: not an ARM", target_name(target));
+ return JIM_ERR;
+ }
+
+ if (target->state != TARGET_HALTED)
+ return ERROR_TARGET_NOT_HALTED;
+
+ if (arm->core_state == ARM_STATE_AARCH64) {
+ LOG_ERROR("%s: not 32-bit arm target", target_name(target));
+ return JIM_ERR;
+ }
+
+ if (argc != arg_cnt) {
+ LOG_ERROR("%s: wrong number of arguments", __func__);
+ return JIM_ERR;
+ }
+
+ int cpnum;
+ uint32_t op1;
+ uint32_t op2;
+ uint32_t CRn;
+ uint32_t CRm;
+ uint32_t value;
+ long l;
+
+ /* NOTE: parameter sequence matches ARM instruction set usage:
+ * MCR pNUM, op1, rX, CRn, CRm, op2 ; write CP from rX
+ * MRC pNUM, op1, rX, CRn, CRm, op2 ; read CP into rX
+ * The "rX" is necessarily omitted; it uses Tcl mechanisms.
+ */
+ retval = Jim_GetLong(interp, argv[1], &l);
+ if (retval != JIM_OK)
+ return retval;
+ if (l & ~0xf) {
+ LOG_ERROR("%s: %s %d out of range", __func__,
+ "coprocessor", (int) l);
+ return JIM_ERR;
+ }
+ cpnum = l;
+
+ retval = Jim_GetLong(interp, argv[2], &l);
+ if (retval != JIM_OK)
+ return retval;
+ if (l & ~0x7) {
+ LOG_ERROR("%s: %s %d out of range", __func__,
+ "op1", (int) l);
+ return JIM_ERR;
+ }
+ op1 = l;
+
+ retval = Jim_GetLong(interp, argv[3], &l);
+ if (retval != JIM_OK)
+ return retval;
+ if (l & ~0xf) {
+ LOG_ERROR("%s: %s %d out of range", __func__,
+ "CRn", (int) l);
+ return JIM_ERR;
+ }
+ CRn = l;
+
+ retval = Jim_GetLong(interp, argv[4], &l);
+ if (retval != JIM_OK)
+ return retval;
+ if (l & ~0xf) {
+ LOG_ERROR("%s: %s %d out of range", __func__,
+ "CRm", (int) l);
+ return JIM_ERR;
+ }
+ CRm = l;
+
+ retval = Jim_GetLong(interp, argv[5], &l);
+ if (retval != JIM_OK)
+ return retval;
+ if (l & ~0x7) {
+ LOG_ERROR("%s: %s %d out of range", __func__,
+ "op2", (int) l);
+ return JIM_ERR;
+ }
+ op2 = l;
+
+ value = 0;
+
+ if (is_mcr == true) {
+ retval = Jim_GetLong(interp, argv[6], &l);
+ if (retval != JIM_OK)
+ return retval;
+ value = l;
+
+ /* NOTE: parameters reordered! */
+ /* ARMV4_5_MCR(cpnum, op1, 0, CRn, CRm, op2) */
+ retval = arm->mcr(target, cpnum, op1, op2, CRn, CRm, value);
+ if (retval != ERROR_OK)
+ return JIM_ERR;
+ } else {
+ /* NOTE: parameters reordered! */
+ /* ARMV4_5_MRC(cpnum, op1, 0, CRn, CRm, op2) */
+ retval = arm->mrc(target, cpnum, op1, op2, CRn, CRm, &value);
+ if (retval != ERROR_OK)
+ return JIM_ERR;
+
+ Jim_SetResult(interp, Jim_NewIntObj(interp, value));
+ }
+
+ return JIM_OK;
+}
+
static const struct command_registration aarch64_exec_command_handlers[] = {
{
.name = "cache_info",
.help = "mask aarch64 interrupts during single-step",
.usage = "['on'|'off']",
},
+ {
+ .name = "mcr",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_mcrmrc,
+ .help = "write coprocessor register",
+ .usage = "cpnum op1 CRn CRm op2 value",
+ },
+ {
+ .name = "mrc",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_mcrmrc,
+ .help = "read coprocessor register",
+ .usage = "cpnum op1 CRn CRm op2",
+ },
+
COMMAND_REGISTRATION_DONE
};
+
static const struct command_registration aarch64_command_handlers[] = {
{
.chain = armv8_command_handlers,
.deassert_reset = aarch64_deassert_reset,
/* REVISIT allow exporting VFP3 registers ... */
+ .get_gdb_arch = armv8_get_gdb_arch,
.get_gdb_reg_list = armv8_get_gdb_reg_list,
.read_memory = aarch64_read_memory,
.commands = aarch64_command_handlers,
.target_create = aarch64_target_create,
+ .target_jim_configure = aarch64_jim_configure,
.init_target = aarch64_init_target,
+ .deinit_target = aarch64_deinit_target,
.examine = aarch64_examine,
.read_phys_memory = aarch64_read_phys_memory,
Code Review / openocd.git / blobdiff