* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007-2010 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2008 by Spencer Oliver *
* Copyright (C) 2008 by Hongtao Zheng *
* hontor@126.com *
* *
+ * Copyright (C) 2009 by David Brownell *
+ * *
* 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 *
#include "etm.h"
#include <helper/time_support.h>
#include "arm_simulator.h"
+#include "arm_semihosting.h"
#include "algorithm.h"
#include "register.h"
+#include "armv4_5.h"
/**
* @param target Pointer to an ARM7/9 target to setup
* @return Result of clearing the watchpoints on the target
*/
-int arm7_9_setup(struct target *target)
+static int arm7_9_setup(struct target *target)
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
* queue. For software breakpoints, this will be the status of the
* required memory reads and writes
*/
-int arm7_9_set_breakpoint(struct target *target, struct breakpoint *breakpoint)
+static int arm7_9_set_breakpoint(struct target *target, struct breakpoint *breakpoint)
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
int retval = ERROR_OK;
* queue. For software breakpoints, this will be the status of the
* required memory reads and writes
*/
-int arm7_9_unset_breakpoint(struct target *target, struct breakpoint *breakpoint)
+static int arm7_9_unset_breakpoint(struct target *target, struct breakpoint *breakpoint)
{
int retval = ERROR_OK;
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
{
return retval;
}
+ current_instr = target_buffer_get_u32(target, (uint8_t *)¤t_instr);
if (current_instr == arm7_9->arm_bkpt)
if ((retval = target_write_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr)) != ERROR_OK)
{
{
return retval;
}
+ current_instr = target_buffer_get_u16(target, (uint8_t *)¤t_instr);
if (current_instr == arm7_9->thumb_bkpt)
if ((retval = target_write_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr)) != ERROR_OK)
{
* @return Error status if watchpoint set fails or the result of executing the
* JTAG queue
*/
-int arm7_9_set_watchpoint(struct target *target, struct watchpoint *watchpoint)
+static int arm7_9_set_watchpoint(struct target *target, struct watchpoint *watchpoint)
{
int retval = ERROR_OK;
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
* @return Error status while trying to unset the watchpoint or the result of
* executing the JTAG queue
*/
-int arm7_9_unset_watchpoint(struct target *target, struct watchpoint *watchpoint)
+static int arm7_9_unset_watchpoint(struct target *target, struct watchpoint *watchpoint)
{
int retval = ERROR_OK;
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
struct reg *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
/* set RESTART instruction */
- jtag_set_end_state(TAP_IDLE);
if (arm7_9->need_bypass_before_restart) {
arm7_9->need_bypass_before_restart = 0;
- arm_jtag_set_instr(jtag_info, 0xf, NULL);
+ retval = arm_jtag_set_instr(jtag_info, 0xf, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
}
- arm_jtag_set_instr(jtag_info, 0x4, NULL);
+ retval = arm_jtag_set_instr(jtag_info, 0x4, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
long long then = timeval_ms();
int timeout;
* @param target Pointer to the target to issue commands to
* @return Always ERROR_OK
*/
-int arm7_9_execute_fast_sys_speed(struct target *target)
+static int arm7_9_execute_fast_sys_speed(struct target *target)
{
static int set = 0;
static uint8_t check_value[4], check_mask[4];
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
struct arm_jtag *jtag_info = &arm7_9->jtag_info;
struct reg *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
+ int retval;
/* set RESTART instruction */
- jtag_set_end_state(TAP_IDLE);
if (arm7_9->need_bypass_before_restart) {
arm7_9->need_bypass_before_restart = 0;
- arm_jtag_set_instr(jtag_info, 0xf, NULL);
+ retval = arm_jtag_set_instr(jtag_info, 0xf, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
}
- arm_jtag_set_instr(jtag_info, 0x4, NULL);
+ retval = arm_jtag_set_instr(jtag_info, 0x4, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
if (!set)
{
* @return ERROR_OK unless there are issues with the JTAG queue or when reading
* from the Embedded ICE unit
*/
-int arm7_9_handle_target_request(void *priv)
+static int arm7_9_handle_target_request(void *priv)
{
int retval = ERROR_OK;
struct target *target = priv;
}
if ((target->state == TARGET_RUNNING) || (target->state == TARGET_RESET))
{
- int check_pc = 0;
- if (target->state == TARGET_RESET)
- {
- if (target->reset_halt)
- {
- enum reset_types jtag_reset_config = jtag_get_reset_config();
- if ((jtag_reset_config & RESET_SRST_PULLS_TRST) == 0)
- {
- check_pc = 1;
- }
- }
- }
-
target->state = TARGET_HALTED;
if ((retval = arm7_9_debug_entry(target)) != ERROR_OK)
return retval;
- if (check_pc)
- {
- struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
- uint32_t t=*((uint32_t *)reg->value);
- if (t != 0)
- {
- LOG_ERROR("PC was not 0. Does this target need srst_pulls_trst?");
- }
- }
+ if (arm_semihosting(target, &retval) != 0)
+ return retval;
if ((retval = target_call_event_callbacks(target, TARGET_EVENT_HALTED)) != ERROR_OK)
{
int arm7_9_assert_reset(struct target *target)
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
+ bool use_event = false;
LOG_DEBUG("target->state: %s",
target_state_name(target));
- enum reset_types jtag_reset_config = jtag_get_reset_config();
- if (!(jtag_reset_config & RESET_HAS_SRST))
- {
- LOG_ERROR("Can't assert SRST");
+ if (target_has_event_action(target, TARGET_EVENT_RESET_ASSERT))
+ use_event = true;
+ else if (!(jtag_reset_config & RESET_HAS_SRST)) {
+ LOG_ERROR("%s: how to reset?", target_name(target));
return ERROR_FAIL;
}
*/
bool srst_asserted = false;
- if (((jtag_reset_config & RESET_SRST_PULLS_TRST) == 0)
+ if (!use_event
+ && !(jtag_reset_config & RESET_SRST_PULLS_TRST)
&& (jtag_reset_config & RESET_SRST_NO_GATING))
{
jtag_add_reset(0, 1);
if (target->reset_halt)
{
/*
- * Some targets do not support communication while SRST is asserted. We need to
- * set up the reset vector catch here.
+ * For targets that don't support communication while SRST is
+ * asserted, we need to set up the reset vector catch first.
*
- * If TRST is asserted, then these settings will be reset anyway, so setting them
- * here is harmless.
+ * When we use TRST+SRST and that's equivalent to a power-up
+ * reset, these settings may well be reset anyway; so setting
+ * them here won't matter.
*/
if (arm7_9->has_vector_catch)
{
- /* program vector catch register to catch reset vector */
- embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_VEC_CATCH], 0x1);
+ /* program vector catch register to catch reset */
+ embeddedice_write_reg(&arm7_9->eice_cache
+ ->reg_list[EICE_VEC_CATCH], 0x1);
- /* extra runtest added as issues were found with certain ARM9 cores (maybe more) - AT91SAM9260 and STR9 */
- jtag_add_runtest(1, jtag_get_end_state());
+ /* extra runtest added as issues were found with
+ * certain ARM9 cores (maybe more) - AT91SAM9260
+ * and STR9
+ */
+ jtag_add_runtest(1, TAP_IDLE);
}
else
{
- /* program watchpoint unit to match on reset vector address */
- embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_ADDR_VALUE], 0x0);
- embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_ADDR_MASK], 0x3);
- embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_DATA_MASK], 0xffffffff);
- embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], EICE_W_CTRL_ENABLE);
- embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_MASK], ~EICE_W_CTRL_nOPC & 0xff);
+ /* program watchpoint unit to match on reset vector
+ * address
+ */
+ embeddedice_write_reg(&arm7_9->eice_cache
+ ->reg_list[EICE_W0_ADDR_VALUE], 0x0);
+ embeddedice_write_reg(&arm7_9->eice_cache
+ ->reg_list[EICE_W0_ADDR_MASK], 0x3);
+ embeddedice_write_reg(&arm7_9->eice_cache
+ ->reg_list[EICE_W0_DATA_MASK],
+ 0xffffffff);
+ embeddedice_write_reg(&arm7_9->eice_cache
+ ->reg_list[EICE_W0_CONTROL_VALUE],
+ EICE_W_CTRL_ENABLE);
+ embeddedice_write_reg(&arm7_9->eice_cache
+ ->reg_list[EICE_W0_CONTROL_MASK],
+ ~EICE_W_CTRL_nOPC & 0xff);
}
}
- /* here we should issue an SRST only, but we may have to assert TRST as well */
- if (jtag_reset_config & RESET_SRST_PULLS_TRST)
- {
- jtag_add_reset(1, 1);
- } else if (!srst_asserted)
- {
- jtag_add_reset(0, 1);
+ if (use_event) {
+ target_handle_event(target, TARGET_EVENT_RESET_ASSERT);
+ } else {
+ /* If we use SRST ... we'd like to issue just SRST, but the
+ * board or chip may be set up so we have to assert TRST as
+ * well. On some chips that combination is equivalent to a
+ * power-up reset, and generally clobbers EICE state.
+ */
+ if (jtag_reset_config & RESET_SRST_PULLS_TRST)
+ jtag_add_reset(1, 1);
+ else if (!srst_asserted)
+ jtag_add_reset(0, 1);
+ jtag_add_sleep(50000);
}
target->state = TARGET_RESET;
- jtag_add_sleep(50000);
-
register_cache_invalidate(arm7_9->armv4_5_common.core_cache);
- if ((target->reset_halt) && ((jtag_reset_config & RESET_SRST_PULLS_TRST) == 0))
+ /* REVISIT why isn't standard debug entry logic sufficient?? */
+ if (target->reset_halt
+ && (!(jtag_reset_config & RESET_SRST_PULLS_TRST)
+ || use_event))
{
- /* debug entry was already prepared in arm7_9_assert_reset() */
+ /* debug entry was prepared above */
target->debug_reason = DBG_REASON_DBGRQ;
}
/* deassert reset lines */
jtag_add_reset(0, 0);
+ /* In case polling is disabled, we need to examine the
+ * target and poll here for this target to work correctly.
+ *
+ * Otherwise, e.g. halt will fail afterwards with bogus
+ * error messages as halt will believe that reset is
+ * still in effect.
+ */
+ if ((retval = target_examine_one(target)) != ERROR_OK)
+ return retval;
+
+ if ((retval = target_poll(target)) != ERROR_OK)
+ {
+ return retval;
+ }
+
enum reset_types jtag_reset_config = jtag_get_reset_config();
if (target->reset_halt && (jtag_reset_config & RESET_SRST_PULLS_TRST) != 0)
{
LOG_WARNING("srst pulls trst - can not reset into halted mode. Issuing halt after reset.");
- /* set up embedded ice registers again */
- if ((retval = target_examine_one(target)) != ERROR_OK)
- return retval;
-
- if ((retval = target_poll(target)) != ERROR_OK)
- {
- return retval;
- }
-
if ((retval = target_halt(target)) != ERROR_OK)
{
return retval;
}
-
}
return retval;
}
* @param target Pointer to the ARM7/9 target to have halt cleared
* @return Always ERROR_OK
*/
-int arm7_9_clear_halt(struct target *target)
+static int arm7_9_clear_halt(struct target *target)
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
struct reg *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL];
uint32_t r0_thumb, pc_thumb;
LOG_DEBUG("target entered debug from Thumb state, changing to ARM");
/* Entered debug from Thumb mode */
- armv4_5->core_state = ARMV4_5_STATE_THUMB;
+ armv4_5->core_state = ARM_STATE_THUMB;
arm7_9->change_to_arm(target, &r0_thumb, &pc_thumb);
}
armv4_5->cpsr->dirty = 1;
/* start fetching from 0x0 */
- buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, 0x0);
- armv4_5->core_cache->reg_list[15].dirty = 1;
- armv4_5->core_cache->reg_list[15].valid = 1;
+ buf_set_u32(armv4_5->pc->value, 0, 32, 0x0);
+ armv4_5->pc->dirty = 1;
+ armv4_5->pc->valid = 1;
/* reset registers */
for (i = 0; i <= 14; i++)
{
LOG_DEBUG("target entered debug from Thumb state");
/* Entered debug from Thumb mode */
- armv4_5->core_state = ARMV4_5_STATE_THUMB;
+ armv4_5->core_state = ARM_STATE_THUMB;
cpsr_mask = 1 << 5;
arm7_9->change_to_arm(target, &r0_thumb, &pc_thumb);
LOG_DEBUG("r0_thumb: 0x%8.8" PRIx32
* B.7.3 for the reverse. That'd be the bare minimum...
*/
LOG_DEBUG("target entered debug from Jazelle state");
- armv4_5->core_state = ARMV4_5_STATE_JAZELLE;
+ armv4_5->core_state = ARM_STATE_JAZELLE;
cpsr_mask = 1 << 24;
LOG_ERROR("Jazelle debug entry -- BROKEN!");
} else {
LOG_DEBUG("target entered debug from ARM state");
/* Entered debug from ARM mode */
- armv4_5->core_state = ARMV4_5_STATE_ARM;
+ armv4_5->core_state = ARM_STATE_ARM;
}
for (i = 0; i < 16; i++)
LOG_DEBUG("target entered debug state in %s mode",
arm_mode_name(armv4_5->core_mode));
- if (armv4_5->core_state == ARMV4_5_STATE_THUMB)
+ if (armv4_5->core_state == ARM_STATE_THUMB)
{
LOG_DEBUG("thumb state, applying fixups");
context[0] = r0_thumb;
context[15] = pc_thumb;
- } else if (armv4_5->core_state == ARMV4_5_STATE_ARM)
+ } else if (armv4_5->core_state == ARM_STATE_ARM)
{
/* adjust value stored by STM */
context[15] -= 3 * 4;
}
if ((target->debug_reason != DBG_REASON_DBGRQ) || (!arm7_9->use_dbgrq))
- context[15] -= 3 * ((armv4_5->core_state == ARMV4_5_STATE_ARM) ? 4 : 2);
+ context[15] -= 3 * ((armv4_5->core_state == ARM_STATE_ARM) ? 4 : 2);
else
- context[15] -= arm7_9->dbgreq_adjust_pc * ((armv4_5->core_state == ARMV4_5_STATE_ARM) ? 4 : 2);
+ context[15] -= arm7_9->dbgreq_adjust_pc * ((armv4_5->core_state == ARM_STATE_ARM) ? 4 : 2);
for (i = 0; i <= 15; i++)
{
return retval;
if (arm7_9->post_debug_entry)
- arm7_9->post_debug_entry(target);
+ {
+ retval = arm7_9->post_debug_entry(target);
+ if (retval != ERROR_OK)
+ return retval;
+ }
return ERROR_OK;
}
* @return Error if the target is not halted, has an invalid core mode, or if
* the JTAG queue fails to execute
*/
-int arm7_9_full_context(struct target *target)
+static int arm7_9_full_context(struct target *target)
{
int i;
int retval;
}
if (!is_arm_mode(armv4_5->core_mode))
+ {
+ LOG_ERROR("not a valid arm core mode - communication failure?");
return ERROR_FAIL;
+ }
/* iterate through processor modes (User, FIQ, IRQ, SVC, ABT, UND)
* SYS shares registers with User, so we don't touch SYS
* @return Error status if the target is not halted or the core mode in the
* armv4_5 struct is invalid.
*/
-int arm7_9_restore_context(struct target *target)
+static int arm7_9_restore_context(struct target *target)
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
struct arm *armv4_5 = &arm7_9->armv4_5_common;
struct reg *reg;
- struct arm_reg *reg_arch_info;
- enum armv4_5_mode current_mode = armv4_5->core_mode;
+ enum arm_mode current_mode = armv4_5->core_mode;
int i, j;
int dirty;
int mode_change;
arm7_9->pre_restore_context(target);
if (!is_arm_mode(armv4_5->core_mode))
+ {
+ LOG_ERROR("not a valid arm core mode - communication failure?");
return ERROR_FAIL;
+ }
/* iterate through processor modes (User, FIQ, IRQ, SVC, ABT, UND)
* SYS shares registers with User, so we don't touch SYS
for (j = 0; j <= 16; j++)
{
reg = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j);
- reg_arch_info = reg->arch_info;
if (reg->dirty == 1)
{
if (reg->valid == 1)
{
dirty = 1;
LOG_DEBUG("examining dirty reg: %s", reg->name);
- if ((reg_arch_info->mode != ARMV4_5_MODE_ANY)
+ struct arm_reg *reg_arch_info;
+ reg_arch_info = reg->arch_info;
+ if ((reg_arch_info->mode != ARM_MODE_ANY)
&& (reg_arch_info->mode != current_mode)
- && !((reg_arch_info->mode == ARMV4_5_MODE_USR) && (armv4_5->core_mode == ARMV4_5_MODE_SYS))
- && !((reg_arch_info->mode == ARMV4_5_MODE_SYS) && (armv4_5->core_mode == ARMV4_5_MODE_USR)))
+ && !((reg_arch_info->mode == ARM_MODE_USR) && (armv4_5->core_mode == ARM_MODE_SYS))
+ && !((reg_arch_info->mode == ARM_MODE_SYS) && (armv4_5->core_mode == ARM_MODE_USR)))
{
mode_change = 1;
LOG_DEBUG("require mode change");
for (j = 0; j <= 14; j++)
{
reg = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j);
- reg_arch_info = reg->arch_info;
-
if (reg->dirty == 1)
{
}
reg = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), 16);
+ struct arm_reg *reg_arch_info;
reg_arch_info = reg->arch_info;
- if ((reg->dirty) && (reg_arch_info->mode != ARMV4_5_MODE_ANY))
+ if ((reg->dirty) && (reg_arch_info->mode != ARM_MODE_ANY))
{
LOG_DEBUG("writing SPSR of mode %i with value 0x%8.8" PRIx32 "", i, buf_get_u32(reg->value, 0, 32));
arm7_9->write_xpsr(target, buf_get_u32(reg->value, 0, 32), 1);
}
/* restore PC */
- LOG_DEBUG("writing PC with value 0x%8.8" PRIx32 "", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32));
- arm7_9->write_pc(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32));
- armv4_5->core_cache->reg_list[15].dirty = 0;
-
- if (arm7_9->post_restore_context)
- arm7_9->post_restore_context(target);
+ LOG_DEBUG("writing PC with value 0x%8.8" PRIx32,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
+ arm7_9->write_pc(target, buf_get_u32(armv4_5->pc->value, 0, 32));
+ armv4_5->pc->dirty = 0;
return ERROR_OK;
}
* @param target Pointer to the ARM7/9 target to be restarted
* @return Result of executing the JTAG queue
*/
-int arm7_9_restart_core(struct target *target)
+static int arm7_9_restart_core(struct target *target)
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
struct arm_jtag *jtag_info = &arm7_9->jtag_info;
+ int retval;
/* set RESTART instruction */
- jtag_set_end_state(TAP_IDLE);
if (arm7_9->need_bypass_before_restart) {
arm7_9->need_bypass_before_restart = 0;
- arm_jtag_set_instr(jtag_info, 0xf, NULL);
+
+ retval = arm_jtag_set_instr(jtag_info, 0xf, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
}
- arm_jtag_set_instr(jtag_info, 0x4, NULL);
+ retval = arm_jtag_set_instr(jtag_info, 0x4, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
- jtag_add_runtest(1, jtag_set_end_state(TAP_IDLE));
+ jtag_add_runtest(1, TAP_IDLE);
return jtag_execute_queue();
}
*
* @param target Pointer to the ARM7/9 target to enable watchpoints on
*/
-void arm7_9_enable_watchpoints(struct target *target)
+static void arm7_9_enable_watchpoints(struct target *target)
{
struct watchpoint *watchpoint = target->watchpoints;
*
* @param target Pointer to the ARM7/9 target to enable breakpoints on
*/
-void arm7_9_enable_breakpoints(struct target *target)
+static void arm7_9_enable_breakpoints(struct target *target)
{
struct breakpoint *breakpoint = target->breakpoints;
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
struct arm *armv4_5 = &arm7_9->armv4_5_common;
- struct breakpoint *breakpoint = target->breakpoints;
struct reg *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL];
int err, retval = ERROR_OK;
/* current = 1: continue on current pc, otherwise continue at <address> */
if (!current)
- buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address);
+ buf_set_u32(armv4_5->pc->value, 0, 32, address);
uint32_t current_pc;
- current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
+ current_pc = buf_get_u32(armv4_5->pc->value, 0, 32);
/* the front-end may request us not to handle breakpoints */
if (handle_breakpoints)
{
- if ((breakpoint = breakpoint_find(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32))))
+ struct breakpoint *breakpoint;
+ breakpoint = breakpoint_find(target,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
+ if (breakpoint != NULL)
{
LOG_DEBUG("unset breakpoint at 0x%8.8" PRIx32 " (id: %d)", breakpoint->address, breakpoint->unique_id );
if ((retval = arm7_9_unset_breakpoint(target, breakpoint)) != ERROR_OK)
return retval;
}
- if (armv4_5->core_state == ARMV4_5_STATE_ARM)
+ if (armv4_5->core_state == ARM_STATE_ARM)
arm7_9->branch_resume(target);
- else if (armv4_5->core_state == ARMV4_5_STATE_THUMB)
+ else if (armv4_5->core_state == ARM_STATE_THUMB)
{
arm7_9->branch_resume_thumb(target);
}
return err;
}
- arm7_9_debug_entry(target);
- LOG_DEBUG("new PC after step: 0x%8.8" PRIx32 "", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32));
+ retval = arm7_9_debug_entry(target);
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("new PC after step: 0x%8.8" PRIx32,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
LOG_DEBUG("set breakpoint at 0x%8.8" PRIx32 "", breakpoint->address);
if ((retval = arm7_9_set_breakpoint(target, breakpoint)) != ERROR_OK)
return retval;
}
- if (armv4_5->core_state == ARMV4_5_STATE_ARM)
+ if (armv4_5->core_state == ARM_STATE_ARM)
{
arm7_9->branch_resume(target);
}
- else if (armv4_5->core_state == ARMV4_5_STATE_THUMB)
+ else if (armv4_5->core_state == ARM_STATE_THUMB)
{
arm7_9->branch_resume_thumb(target);
}
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
struct arm *armv4_5 = &arm7_9->armv4_5_common;
uint32_t current_pc;
- current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
+ current_pc = buf_get_u32(armv4_5->pc->value, 0, 32);
if (next_pc != current_pc)
{
/* current = 1: continue on current pc, otherwise continue at <address> */
if (!current)
- buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address);
+ buf_set_u32(armv4_5->pc->value, 0, 32, address);
- uint32_t current_pc;
- current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
+ uint32_t current_pc = buf_get_u32(armv4_5->pc->value, 0, 32);
/* the front-end may request us not to handle breakpoints */
if (handle_breakpoints)
- if ((breakpoint = breakpoint_find(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32))))
- if ((retval = arm7_9_unset_breakpoint(target, breakpoint)) != ERROR_OK)
- {
- return retval;
- }
+ breakpoint = breakpoint_find(target, current_pc);
+ if (breakpoint != NULL) {
+ retval = arm7_9_unset_breakpoint(target, breakpoint);
+ if (retval != ERROR_OK)
+ return retval;
+ }
target->debug_reason = DBG_REASON_SINGLESTEP;
arm7_9->enable_single_step(target, next_pc);
- if (armv4_5->core_state == ARMV4_5_STATE_ARM)
+ if (armv4_5->core_state == ARM_STATE_ARM)
{
arm7_9->branch_resume(target);
}
- else if (armv4_5->core_state == ARMV4_5_STATE_THUMB)
+ else if (armv4_5->core_state == ARM_STATE_THUMB)
{
arm7_9->branch_resume_thumb(target);
}
{
target->state = TARGET_UNKNOWN;
} else {
- arm7_9_debug_entry(target);
+ retval = arm7_9_debug_entry(target);
+ if (retval != ERROR_OK)
+ return retval;
if ((retval = target_call_event_callbacks(target, TARGET_EVENT_HALTED)) != ERROR_OK)
{
return retval;
}
static int arm7_9_read_core_reg(struct target *target, struct reg *r,
- int num, enum armv4_5_mode mode)
+ int num, enum arm_mode mode)
{
uint32_t* reg_p[16];
- uint32_t value;
int retval;
struct arm_reg *areg = r->arch_info;
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
if ((num < 0) || (num > 16))
return ERROR_INVALID_ARGUMENTS;
- if ((mode != ARMV4_5_MODE_ANY)
+ if ((mode != ARM_MODE_ANY)
&& (mode != armv4_5->core_mode)
- && (areg->mode != ARMV4_5_MODE_ANY))
+ && (areg->mode != ARM_MODE_ANY))
{
uint32_t tmp_cpsr;
arm7_9->write_xpsr_im8(target, tmp_cpsr & 0xff, 0, 0);
}
+ uint32_t value = 0;
if ((num >= 0) && (num <= 15))
{
/* read a normal core register */
/* read a program status register
* if the register mode is MODE_ANY, we read the cpsr, otherwise a spsr
*/
- arm7_9->read_xpsr(target, &value, areg->mode != ARMV4_5_MODE_ANY);
+ arm7_9->read_xpsr(target, &value, areg->mode != ARM_MODE_ANY);
}
if ((retval = jtag_execute_queue()) != ERROR_OK)
r->dirty = 0;
buf_set_u32(r->value, 0, 32, value);
- if ((mode != ARMV4_5_MODE_ANY)
+ if ((mode != ARM_MODE_ANY)
&& (mode != armv4_5->core_mode)
- && (areg->mode != ARMV4_5_MODE_ANY)) {
+ && (areg->mode != ARM_MODE_ANY)) {
/* restore processor mode (mask T bit) */
arm7_9->write_xpsr_im8(target,
buf_get_u32(armv4_5->cpsr->value, 0, 8)
}
static int arm7_9_write_core_reg(struct target *target, struct reg *r,
- int num, enum armv4_5_mode mode, uint32_t value)
+ int num, enum arm_mode mode, uint32_t value)
{
uint32_t reg[16];
struct arm_reg *areg = r->arch_info;
if ((num < 0) || (num > 16))
return ERROR_INVALID_ARGUMENTS;
- if ((mode != ARMV4_5_MODE_ANY)
+ if ((mode != ARM_MODE_ANY)
&& (mode != armv4_5->core_mode)
- && (areg->mode != ARMV4_5_MODE_ANY)) {
+ && (areg->mode != ARM_MODE_ANY)) {
uint32_t tmp_cpsr;
/* change processor mode (mask T bit) */
/* write a program status register
* if the register mode is MODE_ANY, we write the cpsr, otherwise a spsr
*/
- int spsr = (areg->mode != ARMV4_5_MODE_ANY);
+ int spsr = (areg->mode != ARM_MODE_ANY);
/* if we're writing the CPSR, mask the T bit */
if (!spsr)
r->valid = 1;
r->dirty = 0;
- if ((mode != ARMV4_5_MODE_ANY)
+ if ((mode != ARM_MODE_ANY)
&& (mode != armv4_5->core_mode)
- && (areg->mode != ARMV4_5_MODE_ANY)) {
+ && (areg->mode != ARM_MODE_ANY)) {
/* restore processor mode (mask T bit) */
arm7_9->write_xpsr_im8(target,
buf_get_u32(armv4_5->cpsr->value, 0, 8)
}
}
break;
- default:
- LOG_ERROR("BUG: we shouldn't get here");
- exit(-1);
- break;
}
if (!is_arm_mode(armv4_5->core_mode))
return ERROR_TARGET_DATA_ABORT;
}
- if (((cpsr & 0x1f) == ARMV4_5_MODE_ABT) && (armv4_5->core_mode != ARMV4_5_MODE_ABT))
+ if (((cpsr & 0x1f) == ARM_MODE_ABT) && (armv4_5->core_mode != ARM_MODE_ABT))
{
LOG_WARNING("memory read caused data abort (address: 0x%8.8" PRIx32 ", size: 0x%" PRIx32 ", count: 0x%" PRIx32 ")", address, size, count);
return ERROR_OK;
}
-int arm7_9_write_memory(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+int arm7_9_write_memory(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);
struct arm *armv4_5 = &arm7_9->armv4_5_common;
if (arm7_9->fast_memory_access)
retval = arm7_9_execute_fast_sys_speed(target);
else
+ {
retval = arm7_9_execute_sys_speed(target);
+
+ /*
+ * if memory writes are made when the clock is running slow
+ * (i.e. 32 kHz) which is necessary in some scripts to reconfigure
+ * processor operations after a "reset halt" or "reset init",
+ * need to immediately stroke the keep alive or will end up with
+ * gdb "keep alive not sent error message" problem.
+ */
+
+ keep_alive();
+ }
+
if (retval != ERROR_OK)
{
return retval;
if (arm7_9->fast_memory_access)
retval = arm7_9_execute_fast_sys_speed(target);
else
+ {
retval = arm7_9_execute_sys_speed(target);
+
+ /*
+ * if memory writes are made when the clock is running slow
+ * (i.e. 32 kHz) which is necessary in some scripts to reconfigure
+ * processor operations after a "reset halt" or "reset init",
+ * need to immediately stroke the keep alive or will end up with
+ * gdb "keep alive not sent error message" problem.
+ */
+
+ keep_alive();
+ }
+
if (retval != ERROR_OK)
{
return retval;
if (arm7_9->fast_memory_access)
retval = arm7_9_execute_fast_sys_speed(target);
else
- retval = arm7_9_execute_sys_speed(target);
+ {
+ retval = arm7_9_execute_sys_speed(target);
+
+ /*
+ * if memory writes are made when the clock is running slow
+ * (i.e. 32 kHz) which is necessary in some scripts to reconfigure
+ * processor operations after a "reset halt" or "reset init",
+ * need to immediately stroke the keep alive or will end up with
+ * gdb "keep alive not sent error message" problem.
+ */
+
+ keep_alive();
+ }
+
if (retval != ERROR_OK)
{
return retval;
num_accesses += thisrun_accesses;
}
break;
- default:
- LOG_ERROR("BUG: we shouldn't get here");
- exit(-1);
- break;
}
/* Re-Set DBGACK */
return ERROR_TARGET_DATA_ABORT;
}
- if (((cpsr & 0x1f) == ARMV4_5_MODE_ABT) && (armv4_5->core_mode != ARMV4_5_MODE_ABT))
+ if (((cpsr & 0x1f) == ARM_MODE_ABT) && (armv4_5->core_mode != ARM_MODE_ABT))
{
LOG_WARNING("memory write caused data abort (address: 0x%8.8" PRIx32 ", size: 0x%" PRIx32 ", count: 0x%" PRIx32 ")", address, size, count);
}
static int dcc_count;
-static uint8_t *dcc_buffer;
+static const uint8_t *dcc_buffer;
static int arm7_9_dcc_completion(struct target *target, uint32_t exit_point, int timeout_ms, void *arch_info)
{
int little = target->endianness == TARGET_LITTLE_ENDIAN;
int count = dcc_count;
- uint8_t *buffer = dcc_buffer;
+ const uint8_t *buffer = dcc_buffer;
if (count > 2)
{
/* Handle first & last using standard embeddedice_write_reg and the middle ones w/the
0xeafffff9 /* b w */
};
-extern int armv4_5_run_algorithm_inner(struct target *target,
- int num_mem_params, struct mem_param *mem_params,
- int num_reg_params, struct reg_param *reg_params,
- uint32_t entry_point, uint32_t exit_point,
- int timeout_ms, void *arch_info,
- int (*run_it)(struct target *target, uint32_t exit_point,
- int timeout_ms, void *arch_info));
-
-int arm7_9_bulk_write_memory(struct target *target, uint32_t address, uint32_t count, uint8_t *buffer)
+int arm7_9_bulk_write_memory(struct target *target, uint32_t address, uint32_t count, const uint8_t *buffer)
{
int retval;
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
}
}
- struct armv4_5_algorithm armv4_5_info;
+ struct arm_algorithm armv4_5_info;
struct reg_param reg_params[1];
- armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
- armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
- armv4_5_info.core_state = ARMV4_5_STATE_ARM;
+ armv4_5_info.common_magic = ARM_COMMON_MAGIC;
+ armv4_5_info.core_mode = ARM_MODE_SVC;
+ armv4_5_info.core_state = ARM_STATE_ARM;
init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT);
return retval;
}
+
+int arm7_9_check_reset(struct target *target)
+{
+ struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+
+ if (get_target_reset_nag() && !arm7_9->dcc_downloads)
+ {
+ LOG_WARNING("NOTE! DCC downloads have not been enabled, defaulting to slow memory writes. Type 'help dcc'.");
+ }
+
+ if (get_target_reset_nag() && (target->working_area_size == 0))
+ {
+ LOG_WARNING("NOTE! Severe performance degradation without working memory enabled.");
+ }
+
+ if (get_target_reset_nag() && !arm7_9->fast_memory_access)
+ {
+ LOG_WARNING("NOTE! Severe performance degradation without fast memory access enabled. Type 'help fast'.");
+ }
+
+ return ERROR_OK;
+}
+
COMMAND_HANDLER(handle_arm7_9_dbgrq_command)
{
struct target *target = get_current_target(CMD_CTX);
return ERROR_OK;
}
+static int arm7_9_setup_semihosting(struct target *target, int enable)
+{
+ struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+
+ if (!is_arm7_9(arm7_9))
+ {
+ LOG_USER("current target isn't an ARM7/ARM9 target");
+ return ERROR_TARGET_INVALID;
+ }
+
+ if (arm7_9->has_vector_catch) {
+ struct reg *vector_catch = &arm7_9->eice_cache
+ ->reg_list[EICE_VEC_CATCH];
+
+ if (!vector_catch->valid)
+ embeddedice_read_reg(vector_catch);
+ buf_set_u32(vector_catch->value, 2, 1, enable);
+ embeddedice_store_reg(vector_catch);
+ } else {
+ /* TODO: allow optional high vectors and/or BKPT_HARD */
+ if (enable)
+ breakpoint_add(target, 8, 4, BKPT_SOFT);
+ else
+ breakpoint_remove(target, 8);
+ }
+
+ return ERROR_OK;
+}
+
int arm7_9_init_arch_info(struct target *target, struct arm7_9_common *arm7_9)
{
int retval = ERROR_OK;
armv4_5->read_core_reg = arm7_9_read_core_reg;
armv4_5->write_core_reg = arm7_9_write_core_reg;
armv4_5->full_context = arm7_9_full_context;
+ armv4_5->setup_semihosting = arm7_9_setup_semihosting;
- if ((retval = armv4_5_init_arch_info(target, armv4_5)) != ERROR_OK)
+ retval = arm_init_arch_info(target, armv4_5);
+ if (retval != ERROR_OK)
return retval;
return target_register_timer_callback(arm7_9_handle_target_request,
static const struct command_registration arm7_9_any_command_handlers[] = {
{
"dbgrq",
- .handler = &handle_arm7_9_dbgrq_command,
+ .handler = handle_arm7_9_dbgrq_command,
.mode = COMMAND_ANY,
- .usage = "<enable|disable>",
+ .usage = "['enable'|'disable']",
.help = "use EmbeddedICE dbgrq instead of breakpoint "
"for target halt requests",
},
{
"fast_memory_access",
- .handler = &handle_arm7_9_fast_memory_access_command,
+ .handler = handle_arm7_9_fast_memory_access_command,
.mode = COMMAND_ANY,
- .usage = "<enable|disable>",
+ .usage = "['enable'|'disable']",
.help = "use fast memory accesses instead of slower "
"but potentially safer accesses",
},
{
"dcc_downloads",
- .handler = &handle_arm7_9_dcc_downloads_command,
+ .handler = handle_arm7_9_dcc_downloads_command,
.mode = COMMAND_ANY,
- .usage = "<enable | disable>",
+ .usage = "['enable'|'disable']",
.help = "use DCC downloads for larger memory writes",
},
COMMAND_REGISTRATION_DONE
projects / fw / openocd / blobdiff