#include "breakpoints.h"
#include "xscale.h"
#include "target_type.h"
-#include "arm7_9_common.h"
+#include "arm_jtag.h"
#include "arm_simulator.h"
#include "arm_disassembler.h"
-#include "time_support.h"
+#include <helper/time_support.h>
+#include "register.h"
#include "image.h"
+#include "arm_opcodes.h"
+#include "armv4_5.h"
/*
static int xscale_resume(struct target *, int current,
uint32_t address, int handle_breakpoints, int debug_execution);
static int xscale_debug_entry(struct target *);
-static int xscale_restore_context(struct target *);
+static int xscale_restore_banked(struct target *);
static int xscale_get_reg(struct reg *reg);
static int xscale_set_reg(struct reg *reg, uint8_t *buf);
static int xscale_set_breakpoint(struct target *, struct breakpoint *);
{-1, NULL}, /* TXRXCTRL implicit access via JTAG */
};
-static int xscale_reg_arch_type = -1;
-
/* convenience wrapper to access XScale specific registers */
static int xscale_set_reg_u32(struct reg *reg, uint32_t value)
{
return ERROR_OK;
}
-static int xscale_jtag_set_instr(struct jtag_tap *tap, uint32_t new_instr)
+static int xscale_jtag_set_instr(struct jtag_tap *tap, uint32_t new_instr, tap_state_t end_state)
{
- if (tap == NULL)
- return ERROR_FAIL;
+ assert (tap != NULL);
if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
{
uint8_t scratch[4];
memset(&field, 0, sizeof field);
- field.tap = tap;
field.num_bits = tap->ir_length;
field.out_value = scratch;
- buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
+ buf_set_u32(scratch, 0, field.num_bits, new_instr);
- jtag_add_ir_scan(1, &field, jtag_get_end_state());
+ jtag_add_ir_scan(tap, &field, end_state);
}
return ERROR_OK;
uint8_t field2_check_value = 0x0;
uint8_t field2_check_mask = 0x1;
- jtag_set_end_state(TAP_DRPAUSE);
- xscale_jtag_set_instr(target->tap, XSCALE_SELDCSR);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_SELDCSR << xscale->xscale_variant,
+ TAP_DRPAUSE);
buf_set_u32(&field0, 1, 1, xscale->hold_rst);
buf_set_u32(&field0, 2, 1, xscale->external_debug_break);
memset(&fields, 0, sizeof fields);
- fields[0].tap = target->tap;
fields[0].num_bits = 3;
fields[0].out_value = &field0;
uint8_t tmp;
fields[0].in_value = &tmp;
- fields[1].tap = target->tap;
fields[1].num_bits = 32;
fields[1].in_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value;
- fields[2].tap = target->tap;
fields[2].num_bits = 1;
fields[2].out_value = &field2;
uint8_t tmp2;
fields[2].in_value = &tmp2;
- jtag_add_dr_scan(3, fields, jtag_get_end_state());
+ jtag_add_dr_scan(target->tap, 3, fields, TAP_DRPAUSE);
jtag_check_value_mask(fields + 0, &field0_check_value, &field0_check_mask);
jtag_check_value_mask(fields + 2, &field2_check_value, &field2_check_mask);
fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value;
fields[1].in_value = NULL;
- jtag_set_end_state(TAP_IDLE);
-
- jtag_add_dr_scan(3, fields, jtag_get_end_state());
+ jtag_add_dr_scan(target->tap, 3, fields, TAP_DRPAUSE);
/* DANGER!!! this must be here. It will make sure that the arguments
* to jtag_set_check_value() does not go out of scope! */
static void xscale_getbuf(jtag_callback_data_t arg)
{
uint8_t *in = (uint8_t *)arg;
- *((uint32_t *)in) = buf_get_u32(in, 0, 32);
+ *((uint32_t *)arg) = buf_get_u32(in, 0, 32);
}
static int xscale_receive(struct target *target, uint32_t *buffer, int num_words)
if (num_words == 0)
return ERROR_INVALID_ARGUMENTS;
+ struct xscale_common *xscale = target_to_xscale(target);
int retval = ERROR_OK;
tap_state_t path[3];
struct scan_field fields[3];
memset(&fields, 0, sizeof fields);
- fields[0].tap = target->tap;
fields[0].num_bits = 3;
fields[0].check_value = &field0_check_value;
fields[0].check_mask = &field0_check_mask;
- fields[1].tap = target->tap;
fields[1].num_bits = 32;
- fields[2].tap = target->tap;
fields[2].num_bits = 1;
fields[2].check_value = &field2_check_value;
fields[2].check_mask = &field2_check_mask;
- jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_DBGTX);
- jtag_add_runtest(1, jtag_get_end_state()); /* ensures that we're in the TAP_IDLE state as the above could be a no-op */
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_DBGTX << xscale->xscale_variant,
+ TAP_IDLE);
+ jtag_add_runtest(1, TAP_IDLE); /* ensures that we're in the TAP_IDLE state as the above could be a no-op */
/* repeat until all words have been collected */
int attempts = 0;
fields[1].in_value = (uint8_t *)(field1 + i);
- jtag_add_dr_scan_check(3, fields, jtag_set_end_state(TAP_IDLE));
+ jtag_add_dr_scan_check(target->tap, 3, fields, TAP_IDLE);
jtag_add_callback(xscale_getbuf, (jtag_callback_data_t)(field1 + i));
uint8_t field2_check_value = 0x0;
uint8_t field2_check_mask = 0x1;
- jtag_set_end_state(TAP_IDLE);
-
- xscale_jtag_set_instr(target->tap, XSCALE_DBGTX);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_DBGTX << xscale->xscale_variant,
+ TAP_IDLE);
path[0] = TAP_DRSELECT;
path[1] = TAP_DRCAPTURE;
memset(&fields, 0, sizeof fields);
- fields[0].tap = target->tap;
fields[0].num_bits = 3;
fields[0].in_value = &field0_in;
- fields[1].tap = target->tap;
fields[1].num_bits = 32;
fields[1].in_value = xscale->reg_cache->reg_list[XSCALE_TX].value;
- fields[2].tap = target->tap;
fields[2].num_bits = 1;
uint8_t tmp;
fields[2].in_value = &tmp;
jtag_add_pathmove(3, path);
else
{
- jtag_add_pathmove(sizeof(noconsume_path)/sizeof(*noconsume_path), noconsume_path);
+ jtag_add_pathmove(ARRAY_SIZE(noconsume_path), noconsume_path);
}
- jtag_add_dr_scan(3, fields, jtag_set_end_state(TAP_IDLE));
+ jtag_add_dr_scan(target->tap, 3, fields, TAP_IDLE);
jtag_check_value_mask(fields + 0, &field0_check_value, &field0_check_mask);
jtag_check_value_mask(fields + 2, &field2_check_value, &field2_check_mask);
uint8_t field2_check_value = 0x0;
uint8_t field2_check_mask = 0x1;
- jtag_set_end_state(TAP_IDLE);
-
- xscale_jtag_set_instr(target->tap, XSCALE_DBGRX);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_DBGRX << xscale->xscale_variant,
+ TAP_IDLE);
memset(&fields, 0, sizeof fields);
- fields[0].tap = target->tap;
fields[0].num_bits = 3;
fields[0].out_value = &field0_out;
fields[0].in_value = &field0_in;
- fields[1].tap = target->tap;
fields[1].num_bits = 32;
fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_RX].value;
- fields[2].tap = target->tap;
fields[2].num_bits = 1;
fields[2].out_value = &field2;
uint8_t tmp;
LOG_DEBUG("polling RX");
for (;;)
{
- jtag_add_dr_scan(3, fields, jtag_set_end_state(TAP_IDLE));
+ jtag_add_dr_scan(target->tap, 3, fields, TAP_IDLE);
jtag_check_value_mask(fields + 0, &field0_check_value, &field0_check_mask);
jtag_check_value_mask(fields + 2, &field2_check_value, &field2_check_mask);
/* set rx_valid */
field2 = 0x1;
- jtag_add_dr_scan(3, fields, jtag_set_end_state(TAP_IDLE));
+ jtag_add_dr_scan(target->tap, 3, fields, TAP_IDLE);
if ((retval = jtag_execute_queue()) != ERROR_OK)
{
/* send count elements of size byte to the debug handler */
static int xscale_send(struct target *target, uint8_t *buffer, int count, int size)
{
+ struct xscale_common *xscale = target_to_xscale(target);
uint32_t t[3];
int bits[3];
int retval;
int done_count = 0;
- jtag_set_end_state(TAP_IDLE);
-
- xscale_jtag_set_instr(target->tap, XSCALE_DBGRX);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_DBGRX << xscale->xscale_variant,
+ TAP_IDLE);
bits[0]=3;
t[0]=0;
break;
default:
LOG_ERROR("BUG: size neither 4, 2 nor 1");
- exit(-1);
+ return ERROR_INVALID_ARGUMENTS;
}
jtag_add_dr_out(target->tap,
3,
bits,
t,
- jtag_set_end_state(TAP_IDLE));
+ TAP_IDLE);
buffer += size;
}
if (ext_dbg_brk != -1)
xscale->external_debug_break = ext_dbg_brk;
- jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_SELDCSR);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_SELDCSR << xscale->xscale_variant,
+ TAP_IDLE);
buf_set_u32(&field0, 1, 1, xscale->hold_rst);
buf_set_u32(&field0, 2, 1, xscale->external_debug_break);
memset(&fields, 0, sizeof fields);
- fields[0].tap = target->tap;
fields[0].num_bits = 3;
fields[0].out_value = &field0;
uint8_t tmp;
fields[0].in_value = &tmp;
- fields[1].tap = target->tap;
fields[1].num_bits = 32;
fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value;
- fields[2].tap = target->tap;
fields[2].num_bits = 1;
fields[2].out_value = &field2;
uint8_t tmp2;
fields[2].in_value = &tmp2;
- jtag_add_dr_scan(3, fields, jtag_get_end_state());
+ jtag_add_dr_scan(target->tap, 3, fields, TAP_IDLE);
jtag_check_value_mask(fields + 0, &field0_check_value, &field0_check_mask);
jtag_check_value_mask(fields + 2, &field2_check_value, &field2_check_mask);
static int xscale_load_ic(struct target *target, uint32_t va, uint32_t buffer[8])
{
+ struct xscale_common *xscale = target_to_xscale(target);
uint8_t packet[4];
uint8_t cmd;
int word;
LOG_DEBUG("loading miniIC at 0x%8.8" PRIx32 "", va);
/* LDIC into IR */
- jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_LDIC);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_LDIC << xscale->xscale_variant,
+ TAP_IDLE);
/* CMD is b011 to load a cacheline into the Mini ICache.
* Loading into the main ICache is deprecated, and unused.
memset(&fields, 0, sizeof fields);
- fields[0].tap = target->tap;
fields[0].num_bits = 6;
fields[0].out_value = &cmd;
- fields[1].tap = target->tap;
fields[1].num_bits = 27;
fields[1].out_value = packet;
- jtag_add_dr_scan(2, fields, jtag_get_end_state());
+ jtag_add_dr_scan(target->tap, 2, fields, TAP_IDLE);
/* rest of packet is a cacheline: 8 instructions, with parity */
fields[0].num_bits = 32;
memcpy(&value, packet, sizeof(uint32_t));
cmd = parity(value);
- jtag_add_dr_scan(2, fields, jtag_get_end_state());
+ jtag_add_dr_scan(target->tap, 2, fields, TAP_IDLE);
}
return jtag_execute_queue();
static int xscale_invalidate_ic_line(struct target *target, uint32_t va)
{
+ struct xscale_common *xscale = target_to_xscale(target);
uint8_t packet[4];
uint8_t cmd;
struct scan_field fields[2];
- jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_LDIC);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_LDIC << xscale->xscale_variant,
+ TAP_IDLE);
/* CMD for invalidate IC line b000, bits [6:4] b000 */
buf_set_u32(&cmd, 0, 6, 0x0);
memset(&fields, 0, sizeof fields);
- fields[0].tap = target->tap;
fields[0].num_bits = 6;
fields[0].out_value = &cmd;
- fields[1].tap = target->tap;
fields[1].num_bits = 27;
fields[1].out_value = packet;
- jtag_add_dr_scan(2, fields, jtag_get_end_state());
+ jtag_add_dr_scan(target->tap, 2, fields, TAP_IDLE);
return ERROR_OK;
}
static int xscale_arch_state(struct target *target)
{
struct xscale_common *xscale = target_to_xscale(target);
- struct armv4_5_common_s *armv4_5 = &xscale->armv4_5_common;
+ struct arm *armv4_5 = &xscale->armv4_5_common;
static const char *state[] =
{
"", "\n(processor reset)", "\n(trace buffer full)"
};
- if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
+ if (armv4_5->common_magic != ARM_COMMON_MAGIC)
{
LOG_ERROR("BUG: called for a non-ARMv4/5 target");
- exit(-1);
+ return ERROR_INVALID_ARGUMENTS;
}
- LOG_USER("target halted in %s state due to %s, current mode: %s\n"
- "cpsr: 0x%8.8" PRIx32 " pc: 0x%8.8" PRIx32 "\n"
- "MMU: %s, D-Cache: %s, I-Cache: %s"
- "%s",
- armv4_5_state_strings[armv4_5->core_state],
- Jim_Nvp_value2name_simple(nvp_target_debug_reason, target->debug_reason)->name ,
- armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)],
- buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32),
- buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32),
+ arm_arch_state(target);
+ LOG_USER("MMU: %s, D-Cache: %s, I-Cache: %s%s",
state[xscale->armv4_5_mmu.mmu_enabled],
state[xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled],
state[xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled],
static int xscale_debug_entry(struct target *target)
{
struct xscale_common *xscale = target_to_xscale(target);
- struct armv4_5_common_s *armv4_5 = &xscale->armv4_5_common;
+ struct arm *armv4_5 = &xscale->armv4_5_common;
uint32_t pc;
uint32_t buffer[10];
- int i;
+ unsigned i;
int retval;
uint32_t moe;
LOG_DEBUG("r0: 0x%8.8" PRIx32 "", buffer[0]);
/* move pc from buffer to register cache */
- buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, buffer[1]);
- 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, buffer[1]);
+ armv4_5->pc->dirty = 1;
+ armv4_5->pc->valid = 1;
LOG_DEBUG("pc: 0x%8.8" PRIx32 "", buffer[1]);
/* move data from buffer to register cache */
LOG_DEBUG("r%i: 0x%8.8" PRIx32 "", i, buffer[i + 1]);
}
- buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32, buffer[9]);
- armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 1;
- armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1;
+ arm_set_cpsr(armv4_5, buffer[9]);
LOG_DEBUG("cpsr: 0x%8.8" PRIx32 "", buffer[9]);
- armv4_5->core_mode = buffer[9] & 0x1f;
- if (armv4_5_mode_to_number(armv4_5->core_mode) == -1)
+ if (!is_arm_mode(armv4_5->core_mode))
{
target->state = TARGET_UNKNOWN;
LOG_ERROR("cpsr contains invalid mode value - communication failure");
return ERROR_TARGET_FAILURE;
}
- LOG_DEBUG("target entered debug state in %s mode", armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)]);
-
- if (buffer[9] & 0x20)
- armv4_5->core_state = ARMV4_5_STATE_THUMB;
- else
- armv4_5->core_state = ARMV4_5_STATE_ARM;
-
-
- if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
- return ERROR_FAIL;
+ LOG_DEBUG("target entered debug state in %s mode",
+ arm_mode_name(armv4_5->core_mode));
/* get banked registers, r8 to r14, and spsr if not in USR/SYS mode */
- if ((armv4_5->core_mode != ARMV4_5_MODE_USR) && (armv4_5->core_mode != ARMV4_5_MODE_SYS))
- {
+ if (armv4_5->spsr) {
xscale_receive(target, buffer, 8);
- buf_set_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 16).value, 0, 32, buffer[7]);
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 16).dirty = 0;
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 16).valid = 1;
+ buf_set_u32(armv4_5->spsr->value, 0, 32, buffer[7]);
+ armv4_5->spsr->dirty = false;
+ armv4_5->spsr->valid = true;
}
else
{
xscale_receive(target, buffer, 7);
}
- /* move data from buffer to register cache */
+ /* move data from buffer to right banked register in cache */
for (i = 8; i <= 14; i++)
{
- buf_set_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).value, 0, 32, buffer[i - 8]);
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).dirty = 0;
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).valid = 1;
+ struct reg *r = arm_reg_current(armv4_5, i);
+
+ buf_set_u32(r->value, 0, 32, buffer[i - 8]);
+ r->dirty = false;
+ r->valid = true;
}
+ /* mark xscale regs invalid to ensure they are retrieved from the
+ * debug handler if requested */
+ for (i = 0; i < xscale->reg_cache->num_regs; i++)
+ xscale->reg_cache->reg_list[i].valid = 0;
+
/* examine debug reason */
xscale_read_dcsr(target);
moe = buf_get_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 2, 3);
/* stored PC (for calculating fixup) */
- pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
+ pc = buf_get_u32(armv4_5->pc->value, 0, 32);
switch (moe)
{
}
/* apply PC fixup */
- buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, pc);
+ buf_set_u32(armv4_5->pc->value, 0, 32, pc);
/* on the first debug entry, identify cache type */
if (xscale->armv4_5_mmu.armv4_5_cache.ctype == -1)
uint32_t address, int handle_breakpoints, int debug_execution)
{
struct xscale_common *xscale = target_to_xscale(target);
- struct armv4_5_common_s *armv4_5 = &xscale->armv4_5_common;
+ struct arm *armv4_5 = &xscale->armv4_5_common;
struct breakpoint *breakpoint = target->breakpoints;
uint32_t current_pc;
int retval;
/* 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);
- 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 we're at the reset vector, we have to simulate the branch */
if (current_pc == 0x0)
{
arm_simulate_step(target, NULL);
- 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))))
+ breakpoint = breakpoint_find(target,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
+ if (breakpoint != NULL)
{
uint32_t next_pc;
+ int saved_trace_buffer_enabled;
/* there's a breakpoint at the current PC, we have to step over it */
LOG_DEBUG("unset breakpoint at 0x%8.8" PRIx32 "", breakpoint->address);
xscale_enable_single_step(target, next_pc);
/* restore banked registers */
- xscale_restore_context(target);
+ retval = xscale_restore_banked(target);
- /* send resume request (command 0x30 or 0x31)
- * clean the trace buffer if it is to be enabled (0x62) */
- if (xscale->trace.buffer_enabled)
- {
- xscale_send_u32(target, 0x62);
- xscale_send_u32(target, 0x31);
- }
- else
- xscale_send_u32(target, 0x30);
+ /* send resume request */
+ xscale_send_u32(target, 0x30);
/* send CPSR */
- xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32));
- LOG_DEBUG("writing cpsr with value 0x%8.8" PRIx32 "", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32));
+ xscale_send_u32(target,
+ buf_get_u32(armv4_5->cpsr->value, 0, 32));
+ LOG_DEBUG("writing cpsr with value 0x%8.8" PRIx32,
+ buf_get_u32(armv4_5->cpsr->value, 0, 32));
for (i = 7; i >= 0; i--)
{
}
/* send PC */
- xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32));
- LOG_DEBUG("writing PC with value 0x%8.8" PRIx32 "", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32));
+ xscale_send_u32(target,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
+ LOG_DEBUG("writing PC with value 0x%8.8" PRIx32,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
+
+ /* disable trace data collection in xscale_debug_entry() */
+ saved_trace_buffer_enabled = xscale->trace.buffer_enabled;
+ xscale->trace.buffer_enabled = 0;
/* wait for and process debug entry */
xscale_debug_entry(target);
+ /* re-enable trace buffer, if enabled previously */
+ xscale->trace.buffer_enabled = saved_trace_buffer_enabled;
+
LOG_DEBUG("disable single-step");
xscale_disable_single_step(target);
xscale_enable_watchpoints(target);
/* restore banked registers */
- xscale_restore_context(target);
+ retval = xscale_restore_banked(target);
/* send resume request (command 0x30 or 0x31)
* clean the trace buffer if it is to be enabled (0x62) */
xscale_send_u32(target, 0x30);
/* send CPSR */
- xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32));
- LOG_DEBUG("writing cpsr with value 0x%8.8" PRIx32 "", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32));
+ xscale_send_u32(target, buf_get_u32(armv4_5->cpsr->value, 0, 32));
+ LOG_DEBUG("writing cpsr with value 0x%8.8" PRIx32,
+ buf_get_u32(armv4_5->cpsr->value, 0, 32));
for (i = 7; i >= 0; i--)
{
}
/* send PC */
- xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32));
- LOG_DEBUG("writing PC with value 0x%8.8" PRIx32 "", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32));
+ xscale_send_u32(target, buf_get_u32(armv4_5->pc->value, 0, 32));
+ LOG_DEBUG("wrote PC with value 0x%8.8" PRIx32,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
target->debug_reason = DBG_REASON_NOTHALTED;
if (!debug_execution)
{
/* registers are now invalid */
- armv4_5_invalidate_core_regs(target);
+ register_cache_invalidate(armv4_5->core_cache);
target->state = TARGET_RUNNING;
target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
}
uint32_t address, int handle_breakpoints)
{
struct xscale_common *xscale = target_to_xscale(target);
- struct armv4_5_common_s *armv4_5 = &xscale->armv4_5_common;
+ struct arm *armv4_5 = &xscale->armv4_5_common;
uint32_t next_pc;
int retval;
int i;
if ((retval = arm_simulate_step(target, &next_pc)) != ERROR_OK)
{
uint32_t current_opcode, 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);
target_read_u32(target, current_pc, ¤t_opcode);
LOG_ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8" PRIx32 "", current_opcode);
return retval;
/* restore banked registers */
- if ((retval = xscale_restore_context(target)) != ERROR_OK)
+ if ((retval = xscale_restore_banked(target)) != ERROR_OK)
return retval;
/* send resume request (command 0x30 or 0x31)
return retval;
/* send CPSR */
- if ((retval = xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32))) != ERROR_OK)
+ retval = xscale_send_u32(target,
+ buf_get_u32(armv4_5->cpsr->value, 0, 32));
+ if (retval != ERROR_OK)
return retval;
- LOG_DEBUG("writing cpsr with value 0x%8.8" PRIx32 "", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32));
+ LOG_DEBUG("writing cpsr with value 0x%8.8" PRIx32,
+ buf_get_u32(armv4_5->cpsr->value, 0, 32));
for (i = 7; i >= 0; i--)
{
}
/* send PC */
- if ((retval = xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32))) != ERROR_OK)
+ retval = xscale_send_u32(target,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
+ if (retval != ERROR_OK)
return retval;
- LOG_DEBUG("writing PC with value 0x%8.8" PRIx32, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32));
+ LOG_DEBUG("wrote PC with value 0x%8.8" PRIx32,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
/* registers are now invalid */
- if ((retval = armv4_5_invalidate_core_regs(target)) != ERROR_OK)
- return retval;
+ register_cache_invalidate(armv4_5->core_cache);
/* wait for and process debug entry */
if ((retval = xscale_debug_entry(target)) != ERROR_OK)
static int xscale_step(struct target *target, int current,
uint32_t address, int handle_breakpoints)
{
- struct armv4_5_common_s *armv4_5 = target_to_armv4_5(target);
- struct breakpoint *breakpoint = target->breakpoints;
+ struct arm *armv4_5 = target_to_arm(target);
+ struct breakpoint *breakpoint = NULL;
uint32_t current_pc;
int retval;
/* 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);
- 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 we're at the reset vector, we have to simulate the step */
if (current_pc == 0x0)
{
if ((retval = arm_simulate_step(target, NULL)) != ERROR_OK)
return retval;
- 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);
target->debug_reason = DBG_REASON_SINGLESTEP;
target_call_event_callbacks(target, TARGET_EVENT_HALTED);
/* 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 = xscale_unset_breakpoint(target, breakpoint)) != ERROR_OK)
- return retval;
- }
+ breakpoint = breakpoint_find(target,
+ buf_get_u32(armv4_5->pc->value, 0, 32));
+ if (breakpoint != NULL) {
+ retval = xscale_unset_breakpoint(target, breakpoint);
+ if (retval != ERROR_OK)
+ return retval;
+ }
retval = xscale_step_inner(target, current, address, handle_breakpoints);
/* select DCSR instruction (set endstate to R-T-I to ensure we don't
* end up in T-L-R, which would reset JTAG
*/
- jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_SELDCSR);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_SELDCSR << xscale->xscale_variant,
+ TAP_IDLE);
/* set Hold reset, Halt mode and Trap Reset */
buf_set_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 30, 1, 0x1);
xscale_write_dcsr(target, 1, 0);
/* select BYPASS, because having DCSR selected caused problems on the PXA27x */
- xscale_jtag_set_instr(target->tap, 0x7f);
+ xscale_jtag_set_instr(target->tap, ~0, TAP_IDLE);
jtag_execute_queue();
/* assert reset */
breakpoint = breakpoint->next;
}
- armv4_5_invalidate_core_regs(target);
+ register_cache_invalidate(xscale->armv4_5_common.core_cache);
/* FIXME mark hardware watchpoints got unset too. Also,
* at least some of the XScale registers are invalid...
/* wait 300ms; 150 and 100ms were not enough */
jtag_add_sleep(300*1000);
- jtag_add_runtest(2030, jtag_set_end_state(TAP_IDLE));
+ jtag_add_runtest(2030, TAP_IDLE);
jtag_execute_queue();
/* set Hold reset, Halt mode and Trap Reset */
if (retval != ERROR_OK)
return retval;
- jtag_add_runtest(30, jtag_set_end_state(TAP_IDLE));
+ jtag_add_runtest(30, TAP_IDLE);
jtag_add_sleep(100000);
return ERROR_OK;
}
-static int xscale_read_core_reg(struct target *target, int num,
- enum armv4_5_mode mode)
+static int xscale_read_core_reg(struct target *target, struct reg *r,
+ int num, enum arm_mode mode)
{
+ /** \todo add debug handler support for core register reads */
LOG_ERROR("not implemented");
return ERROR_OK;
}
-static int xscale_write_core_reg(struct target *target, int num,
- enum armv4_5_mode mode, uint32_t value)
+static int xscale_write_core_reg(struct target *target, struct reg *r,
+ int num, enum arm_mode mode, uint32_t value)
{
+ /** \todo add debug handler support for core register writes */
LOG_ERROR("not implemented");
return ERROR_OK;
}
static int xscale_full_context(struct target *target)
{
- struct armv4_5_common_s *armv4_5 = target_to_armv4_5(target);
+ struct arm *armv4_5 = target_to_arm(target);
uint32_t *buffer;
*/
for (i = 1; i < 7; i++)
{
- int valid = 1;
+ enum arm_mode mode = armv4_5_number_to_mode(i);
+ bool valid = true;
+ struct reg *r;
+
+ if (mode == ARM_MODE_USR)
+ continue;
/* check if there are invalid registers in the current mode
*/
- for (j = 0; j <= 16; j++)
+ for (j = 0; valid && j <= 16; j++)
{
- if (ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).valid == 0)
- valid = 0;
+ if (!ARMV4_5_CORE_REG_MODE(armv4_5->core_cache,
+ mode, j).valid)
+ valid = false;
}
+ if (valid)
+ continue;
- if (!valid)
- {
- uint32_t tmp_cpsr;
+ /* request banked registers */
+ xscale_send_u32(target, 0x0);
- /* request banked registers */
- xscale_send_u32(target, 0x0);
+ /* send CPSR for desired bank mode */
+ xscale_send_u32(target, mode | 0xc0 /* I/F bits */);
- tmp_cpsr = 0x0;
- tmp_cpsr |= armv4_5_number_to_mode(i);
- tmp_cpsr |= 0xc0; /* I/F bits */
-
- /* send CPSR for desired mode */
- xscale_send_u32(target, tmp_cpsr);
+ /* get banked registers: r8 to r14; and SPSR
+ * except in USR/SYS mode
+ */
+ if (mode != ARM_MODE_SYS) {
+ /* SPSR */
+ r = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache,
+ mode, 16);
+
+ xscale_receive(target, buffer, 8);
+
+ buf_set_u32(r->value, 0, 32, buffer[7]);
+ r->dirty = false;
+ r->valid = true;
+ } else {
+ xscale_receive(target, buffer, 7);
+ }
- /* get banked registers, r8 to r14, and spsr if not in USR/SYS mode */
- if ((armv4_5_number_to_mode(i) != ARMV4_5_MODE_USR) && (armv4_5_number_to_mode(i) != ARMV4_5_MODE_SYS))
- {
- xscale_receive(target, buffer, 8);
- buf_set_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 16).value, 0, 32, buffer[7]);
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), 16).dirty = 0;
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), 16).valid = 1;
- }
- else
- {
- xscale_receive(target, buffer, 7);
- }
+ /* move data from buffer to register cache */
+ for (j = 8; j <= 14; j++)
+ {
+ r = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache,
+ mode, j);
- /* move data from buffer to register cache */
- for (j = 8; j <= 14; j++)
- {
- buf_set_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).value, 0, 32, buffer[j - 8]);
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).dirty = 0;
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).valid = 1;
- }
+ buf_set_u32(r->value, 0, 32, buffer[j - 8]);
+ r->dirty = false;
+ r->valid = true;
}
}
return ERROR_OK;
}
-static int xscale_restore_context(struct target *target)
+static int xscale_restore_banked(struct target *target)
{
- struct armv4_5_common_s *armv4_5 = target_to_armv4_5(target);
+ struct arm *armv4_5 = target_to_arm(target);
int i, j;
}
/* iterate through processor modes (FIQ, IRQ, SVC, ABT, UND and SYS)
- * we can't enter User mode on an XScale (unpredictable),
- * but User shares registers with SYS
- */
+ * and check if any banked registers need to be written. Ignore
+ * USR mode (number 0) in favor of SYS; we can't enter User mode on
+ * an XScale (unpredictable), but they share all registers.
+ */
for (i = 1; i < 7; i++)
{
- int dirty = 0;
+ enum arm_mode mode = armv4_5_number_to_mode(i);
+ struct reg *r;
- /* check if there are invalid registers in the current mode
- */
+ if (mode == ARM_MODE_USR)
+ continue;
+
+ /* check if there are dirty registers in this mode */
for (j = 8; j <= 14; j++)
{
- if (ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).dirty == 1)
- dirty = 1;
+ if (ARMV4_5_CORE_REG_MODE(armv4_5->core_cache,
+ mode, j).dirty)
+ goto dirty;
}
/* if not USR/SYS, check if the SPSR needs to be written */
- if ((armv4_5_number_to_mode(i) != ARMV4_5_MODE_USR) && (armv4_5_number_to_mode(i) != ARMV4_5_MODE_SYS))
+ if (mode != ARM_MODE_SYS)
{
- if (ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), 16).dirty == 1)
- dirty = 1;
+ if (ARMV4_5_CORE_REG_MODE(armv4_5->core_cache,
+ mode, 16).dirty)
+ goto dirty;
}
- if (dirty)
- {
- uint32_t tmp_cpsr;
+ /* there's nothing to flush for this mode */
+ continue;
- /* send banked registers */
- xscale_send_u32(target, 0x1);
+dirty:
+ /* command 0x1: "send banked registers" */
+ xscale_send_u32(target, 0x1);
- tmp_cpsr = 0x0;
- tmp_cpsr |= armv4_5_number_to_mode(i);
- tmp_cpsr |= 0xc0; /* I/F bits */
+ /* send CPSR for desired mode */
+ xscale_send_u32(target, mode | 0xc0 /* I/F bits */);
- /* send CPSR for desired mode */
- xscale_send_u32(target, tmp_cpsr);
-
- /* send banked registers, r8 to r14, and spsr if not in USR/SYS mode */
- for (j = 8; j <= 14; j++)
- {
- xscale_send_u32(target, buf_get_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, j).value, 0, 32));
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).dirty = 0;
- }
+ /* send r8 to r14/lr ... only FIQ needs more than r13..r14,
+ * but this protocol doesn't understand that nuance.
+ */
+ for (j = 8; j <= 14; j++) {
+ r = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache,
+ mode, j);
+ xscale_send_u32(target, buf_get_u32(r->value, 0, 32));
+ r->dirty = false;
+ }
- if ((armv4_5_number_to_mode(i) != ARMV4_5_MODE_USR) && (armv4_5_number_to_mode(i) != ARMV4_5_MODE_SYS))
- {
- xscale_send_u32(target, buf_get_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 16).value, 0, 32));
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), 16).dirty = 0;
- }
+ /* send spsr if not in USR/SYS mode */
+ if (mode != ARM_MODE_SYS) {
+ r = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache,
+ mode, 16);
+ xscale_send_u32(target, buf_get_u32(r->value, 0, 32));
+ r->dirty = false;
}
}
*buffer++ = buf32[i] & 0xff;
break;
default:
- LOG_ERROR("should never get here");
- exit(-1);
+ LOG_ERROR("invalid read size");
+ return ERROR_INVALID_ARGUMENTS;
}
}
return ERROR_OK;
}
+static int xscale_read_phys_memory(struct target *target, uint32_t address,
+ uint32_t size, uint32_t count, uint8_t *buffer)
+{
+ struct xscale_common *xscale = target_to_xscale(target);
+
+ /* with MMU inactive, there are only physical addresses */
+ if (!xscale->armv4_5_mmu.mmu_enabled)
+ return xscale_read_memory(target, address, size, count, buffer);
+
+ /** \todo: provide a non-stub implementation of this routine. */
+ LOG_ERROR("%s: %s is not implemented. Disable MMU?",
+ target_name(target), __func__);
+ return ERROR_FAIL;
+}
+
static int xscale_write_memory(struct target *target, uint32_t address,
uint32_t size, uint32_t count, uint8_t *buffer)
{
if ((retval = xscale_send_u32(target, 0x60)) != ERROR_OK)
return retval;
+ LOG_ERROR("data abort writing memory");
return ERROR_TARGET_DATA_ABORT;
}
return ERROR_OK;
}
+static int xscale_write_phys_memory(struct target *target, uint32_t address,
+ uint32_t size, uint32_t count, uint8_t *buffer)
+{
+ struct xscale_common *xscale = target_to_xscale(target);
+
+ /* with MMU inactive, there are only physical addresses */
+ if (!xscale->armv4_5_mmu.mmu_enabled)
+ return xscale_read_memory(target, address, size, count, buffer);
+
+ /** \todo: provide a non-stub implementation of this routine. */
+ LOG_ERROR("%s: %s is not implemented. Disable MMU?",
+ target_name(target), __func__);
+ return ERROR_FAIL;
+}
+
static int xscale_bulk_write_memory(struct target *target, uint32_t address,
uint32_t count, uint8_t *buffer)
{
return xscale_write_memory(target, address, 4, count, buffer);
}
-static uint32_t xscale_get_ttb(struct target *target)
+static int xscale_get_ttb(struct target *target, uint32_t *result)
{
struct xscale_common *xscale = target_to_xscale(target);
uint32_t ttb;
+ int retval;
- xscale_get_reg(&xscale->reg_cache->reg_list[XSCALE_TTB]);
+ retval = xscale_get_reg(&xscale->reg_cache->reg_list[XSCALE_TTB]);
+ if (retval != ERROR_OK)
+ return retval;
ttb = buf_get_u32(xscale->reg_cache->reg_list[XSCALE_TTB].value, 0, 32);
- return ttb;
+ *result = ttb;
+
+ return ERROR_OK;
}
-static void xscale_disable_mmu_caches(struct target *target, int mmu,
+static int xscale_disable_mmu_caches(struct target *target, int mmu,
int d_u_cache, int i_cache)
{
struct xscale_common *xscale = target_to_xscale(target);
uint32_t cp15_control;
+ int retval;
/* read cp15 control register */
- xscale_get_reg(&xscale->reg_cache->reg_list[XSCALE_CTRL]);
+ retval = xscale_get_reg(&xscale->reg_cache->reg_list[XSCALE_CTRL]);
+ if (retval !=ERROR_OK)
+ return retval;
cp15_control = buf_get_u32(xscale->reg_cache->reg_list[XSCALE_CTRL].value, 0, 32);
if (mmu)
if (d_u_cache)
{
/* clean DCache */
- xscale_send_u32(target, 0x50);
- xscale_send_u32(target, xscale->cache_clean_address);
+ retval = xscale_send_u32(target, 0x50);
+ if (retval !=ERROR_OK)
+ return retval;
+ retval = xscale_send_u32(target, xscale->cache_clean_address);
+ if (retval !=ERROR_OK)
+ return retval;
/* invalidate DCache */
- xscale_send_u32(target, 0x51);
+ retval = xscale_send_u32(target, 0x51);
+ if (retval !=ERROR_OK)
+ return retval;
cp15_control &= ~0x4U;
}
if (i_cache)
{
/* invalidate ICache */
- xscale_send_u32(target, 0x52);
+ retval = xscale_send_u32(target, 0x52);
+ if (retval !=ERROR_OK)
+ return retval;
cp15_control &= ~0x1000U;
}
/* write new cp15 control register */
- xscale_set_reg_u32(&xscale->reg_cache->reg_list[XSCALE_CTRL], cp15_control);
+ retval = xscale_set_reg_u32(&xscale->reg_cache->reg_list[XSCALE_CTRL], cp15_control);
+ if (retval !=ERROR_OK)
+ return retval;
/* execute cpwait to ensure outstanding operations complete */
- xscale_send_u32(target, 0x53);
+ retval = xscale_send_u32(target, 0x53);
+ return retval;
}
-static void xscale_enable_mmu_caches(struct target *target, int mmu,
+static int xscale_enable_mmu_caches(struct target *target, int mmu,
int d_u_cache, int i_cache)
{
struct xscale_common *xscale = target_to_xscale(target);
uint32_t cp15_control;
+ int retval;
/* read cp15 control register */
- xscale_get_reg(&xscale->reg_cache->reg_list[XSCALE_CTRL]);
+ retval = xscale_get_reg(&xscale->reg_cache->reg_list[XSCALE_CTRL]);
+ if (retval !=ERROR_OK)
+ return retval;
cp15_control = buf_get_u32(xscale->reg_cache->reg_list[XSCALE_CTRL].value, 0, 32);
if (mmu)
cp15_control |= 0x1000U;
/* write new cp15 control register */
- xscale_set_reg_u32(&xscale->reg_cache->reg_list[XSCALE_CTRL], cp15_control);
+ retval = xscale_set_reg_u32(&xscale->reg_cache->reg_list[XSCALE_CTRL], cp15_control);
+ if (retval !=ERROR_OK)
+ return retval;
/* execute cpwait to ensure outstanding operations complete */
- xscale_send_u32(target, 0x53);
+ retval = xscale_send_u32(target, 0x53);
+ return retval;
}
static int xscale_set_breakpoint(struct target *target,
breakpoint->set = 2; /* breakpoint set on second breakpoint register */
}
else
- {
+ { /* bug: availability previously verified in xscale_add_breakpoint() */
LOG_ERROR("BUG: no hardware comparator available");
- return ERROR_OK;
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
}
else if (breakpoint->type == BKPT_SOFT)
{
return retval;
}
- /* write the original instruction in target endianness (arm7_9->arm_bkpt is host endian) */
+ /* write the bkpt instruction in target endianness (arm7_9->arm_bkpt is host endian) */
if ((retval = target_write_u32(target, breakpoint->address, xscale->arm_bkpt)) != ERROR_OK)
{
return retval;
{
return retval;
}
- /* write the original instruction in target endianness (arm7_9->arm_bkpt is host endian) */
- if ((retval = target_write_u32(target, breakpoint->address, xscale->thumb_bkpt)) != ERROR_OK)
+ /* write the bkpt instruction in target endianness (arm7_9->arm_bkpt is host endian) */
+ if ((retval = target_write_u16(target, breakpoint->address, xscale->thumb_bkpt)) != ERROR_OK)
{
return retval;
}
}
breakpoint->set = 1;
+
+ xscale_send_u32(target, 0x50); /* clean dcache */
+ xscale_send_u32(target, xscale->cache_clean_address);
+ xscale_send_u32(target, 0x51); /* invalidate dcache */
+ xscale_send_u32(target, 0x52); /* invalidate icache and flush fetch buffers */
}
return ERROR_OK;
{
struct xscale_common *xscale = target_to_xscale(target);
- if (target->state != TARGET_HALTED)
- {
- LOG_WARNING("target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
if ((breakpoint->type == BKPT_HARD) && (xscale->ibcr_available < 1))
{
- LOG_INFO("no breakpoint unit available for hardware breakpoint");
+ LOG_ERROR("no breakpoint unit available for hardware breakpoint");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
if ((breakpoint->length != 2) && (breakpoint->length != 4))
{
- LOG_INFO("only breakpoints of two (Thumb) or four (ARM) bytes length supported");
+ LOG_ERROR("only breakpoints of two (Thumb) or four (ARM) bytes length supported");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
xscale->ibcr_available--;
}
- return ERROR_OK;
+ return xscale_set_breakpoint(target, breakpoint);
}
static int xscale_unset_breakpoint(struct target *target,
}
}
breakpoint->set = 0;
+
+ xscale_send_u32(target, 0x50); /* clean dcache */
+ xscale_send_u32(target, xscale->cache_clean_address);
+ xscale_send_u32(target, 0x51); /* invalidate dcache */
+ xscale_send_u32(target, 0x52); /* invalidate icache and flush fetch buffers */
}
return ERROR_OK;
if (target->state != TARGET_HALTED)
{
- LOG_WARNING("target not halted");
+ LOG_ERROR("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
struct watchpoint *watchpoint)
{
struct xscale_common *xscale = target_to_xscale(target);
- uint8_t enable = 0;
+ uint32_t enable = 0;
struct reg *dbcon = &xscale->reg_cache->reg_list[XSCALE_DBCON];
uint32_t dbcon_value = buf_get_u32(dbcon->value, 0, 32);
if (target->state != TARGET_HALTED)
{
- LOG_WARNING("target not halted");
+ LOG_ERROR("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
- xscale_get_reg(dbcon);
-
switch (watchpoint->rw)
{
case WPT_READ:
LOG_ERROR("BUG: watchpoint->rw neither read, write nor access");
}
+ /* For watchpoint across more than one word, both DBR registers must
+ be enlisted, with the second used as a mask. */
+ if (watchpoint->length > 4)
+ {
+ if (xscale->dbr0_used || xscale->dbr1_used)
+ {
+ LOG_ERROR("BUG: sufficient hardware comparators unavailable");
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ }
+
+ /* Write mask value to DBR1, based on the length argument.
+ * Address bits ignored by the comparator are those set in mask. */
+ xscale_set_reg_u32(&xscale->reg_cache->reg_list[XSCALE_DBR1],
+ watchpoint->length - 1);
+ xscale->dbr1_used = 1;
+ enable |= 0x100; /* DBCON[M] */
+ }
+
if (!xscale->dbr0_used)
{
xscale_set_reg_u32(&xscale->reg_cache->reg_list[XSCALE_DBR0], watchpoint->address);
else
{
LOG_ERROR("BUG: no hardware comparator available");
- return ERROR_OK;
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
return ERROR_OK;
{
struct xscale_common *xscale = target_to_xscale(target);
- if (target->state != TARGET_HALTED)
+ if (xscale->dbr_available < 1)
{
- LOG_WARNING("target not halted");
- return ERROR_TARGET_NOT_HALTED;
+ LOG_ERROR("no more watchpoint registers available");
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
- if (xscale->dbr_available < 1)
+ if (watchpoint->value)
+ LOG_WARNING("xscale does not support value, mask arguments; ignoring");
+
+ /* check that length is a power of two */
+ for (uint32_t len = watchpoint->length; len != 1; len /= 2)
{
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ if (len % 2)
+ {
+ LOG_ERROR("xscale requires that watchpoint length is a power of two");
+ return ERROR_COMMAND_ARGUMENT_INVALID;
+ }
}
- if ((watchpoint->length != 1) && (watchpoint->length != 2) && (watchpoint->length != 4))
+ if (watchpoint->length == 4) /* single word watchpoint */
{
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ xscale->dbr_available--; /* one DBR reg used */
+ return ERROR_OK;
}
- xscale->dbr_available--;
-
+ /* watchpoints across multiple words require both DBR registers */
+ if (xscale->dbr_available < 2)
+ {
+ LOG_ERROR("insufficient watchpoint registers available");
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ }
+
+ if (watchpoint->length > watchpoint->address)
+ {
+ LOG_ERROR("xscale does not support watchpoints with length "
+ "greater than address");
+ return ERROR_COMMAND_ARGUMENT_INVALID;
+ }
+
+ xscale->dbr_available = 0;
return ERROR_OK;
}
if (watchpoint->set == 1)
{
- dbcon_value &= ~0x3;
+ if (watchpoint->length > 4)
+ {
+ dbcon_value &= ~0x103; /* clear DBCON[M] as well */
+ xscale->dbr1_used = 0; /* DBR1 was used for mask */
+ }
+ else
+ dbcon_value &= ~0x3;
+
xscale_set_reg_u32(dbcon, dbcon_value);
xscale->dbr0_used = 0;
}
if (target->state != TARGET_HALTED)
{
- LOG_WARNING("target not halted");
+ LOG_ERROR("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
xscale_unset_watchpoint(target, watchpoint);
}
+ if (watchpoint->length > 4)
+ xscale->dbr_available++; /* both DBR regs now available */
+
xscale->dbr_available++;
return ERROR_OK;
static int xscale_read_trace(struct target *target)
{
struct xscale_common *xscale = target_to_xscale(target);
- struct armv4_5_common_s *armv4_5 = &xscale->armv4_5_common;
+ struct arm *armv4_5 = &xscale->armv4_5_common;
struct xscale_trace_data **trace_data_p;
/* 258 words from debug handler
uint32_t trace_buffer[258];
int is_address[256];
int i, j;
+ unsigned int num_checkpoints = 0;
if (target->state != TARGET_HALTED)
{
/* parse buffer backwards to identify address entries */
for (i = 255; i >= 0; i--)
{
+ /* also count number of checkpointed entries */
+ if ((trace_buffer[i] & 0xe0) == 0xc0)
+ num_checkpoints++;
+
is_address[i] = 0;
if (((trace_buffer[i] & 0xf0) == 0x90) ||
((trace_buffer[i] & 0xf0) == 0xd0))
{
- if (i >= 3)
+ if (i > 0)
is_address[--i] = 1;
- if (i >= 2)
+ if (i > 0)
is_address[--i] = 1;
- if (i >= 1)
+ if (i > 0)
is_address[--i] = 1;
- if (i >= 0)
+ if (i > 0)
is_address[--i] = 1;
}
}
- /* search first non-zero entry */
+ /* search first non-zero entry that is not part of an address */
for (j = 0; (j < 256) && (trace_buffer[j] == 0) && (!is_address[j]); j++)
;
return ERROR_XSCALE_NO_TRACE_DATA;
}
+ /* account for possible partial address at buffer start (wrap mode only) */
+ if (is_address[0])
+ { /* first entry is address; complete set of 4? */
+ i = 1;
+ while (i < 4)
+ if (!is_address[i++])
+ break;
+ if (i < 4)
+ j += i; /* partial address; can't use it */
+ }
+
+ /* if first valid entry is indirect branch, can't use that either (no address) */
+ if (((trace_buffer[j] & 0xf0) == 0x90) || ((trace_buffer[j] & 0xf0) == 0xd0))
+ j++;
+
+ /* walk linked list to terminating entry */
for (trace_data_p = &xscale->trace.data; *trace_data_p; trace_data_p = &(*trace_data_p)->next)
;
(*trace_data_p)->next = NULL;
(*trace_data_p)->chkpt0 = trace_buffer[256];
(*trace_data_p)->chkpt1 = trace_buffer[257];
- (*trace_data_p)->last_instruction = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
+ (*trace_data_p)->last_instruction =
+ buf_get_u32(armv4_5->pc->value, 0, 32);
(*trace_data_p)->entries = malloc(sizeof(struct xscale_trace_entry) * (256 - j));
(*trace_data_p)->depth = 256 - j;
+ (*trace_data_p)->num_checkpoints = num_checkpoints;
for (i = j; i < 256; i++)
{
return ERROR_OK;
}
-static int xscale_read_instruction(struct target *target,
- struct arm_instruction *instruction)
+static int xscale_read_instruction(struct target *target, uint32_t pc,
+ struct arm_instruction *instruction)
{
- struct xscale_common *xscale = target_to_xscale(target);
+ struct xscale_common *const xscale = target_to_xscale(target);
int i;
int section = -1;
- uint32_t size_read;
+ size_t size_read;
uint32_t opcode;
int retval;
/* search for the section the current instruction belongs to */
for (i = 0; i < xscale->trace.image->num_sections; i++)
{
- if ((xscale->trace.image->sections[i].base_address <= xscale->trace.current_pc) &&
- (xscale->trace.image->sections[i].base_address + xscale->trace.image->sections[i].size > xscale->trace.current_pc))
+ if ((xscale->trace.image->sections[i].base_address <= pc) &&
+ (xscale->trace.image->sections[i].base_address + xscale->trace.image->sections[i].size > pc))
{
section = i;
break;
return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
}
- if (xscale->trace.core_state == ARMV4_5_STATE_ARM)
+ if (xscale->trace.core_state == ARM_STATE_ARM)
{
uint8_t buf[4];
if ((retval = image_read_section(xscale->trace.image, section,
- xscale->trace.current_pc - xscale->trace.image->sections[section].base_address,
+ pc - xscale->trace.image->sections[section].base_address,
4, buf, &size_read)) != ERROR_OK)
{
LOG_ERROR("error while reading instruction: %i", retval);
return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
}
opcode = target_buffer_get_u32(target, buf);
- arm_evaluate_opcode(opcode, xscale->trace.current_pc, instruction);
+ arm_evaluate_opcode(opcode, pc, instruction);
}
- else if (xscale->trace.core_state == ARMV4_5_STATE_THUMB)
+ else if (xscale->trace.core_state == ARM_STATE_THUMB)
{
uint8_t buf[2];
if ((retval = image_read_section(xscale->trace.image, section,
- xscale->trace.current_pc - xscale->trace.image->sections[section].base_address,
+ pc - xscale->trace.image->sections[section].base_address,
2, buf, &size_read)) != ERROR_OK)
{
LOG_ERROR("error while reading instruction: %i", retval);
return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
}
opcode = target_buffer_get_u16(target, buf);
- thumb_evaluate_opcode(opcode, xscale->trace.current_pc, instruction);
+ thumb_evaluate_opcode(opcode, pc, instruction);
}
else
{
return ERROR_OK;
}
-static int xscale_branch_address(struct xscale_trace_data *trace_data,
- int i, uint32_t *target)
+/* Extract address encoded into trace data.
+ * Write result to address referenced by argument 'target', or 0 if incomplete. */
+static inline void xscale_branch_address(struct xscale_trace_data *trace_data,
+ int i, uint32_t *target)
{
/* if there are less than four entries prior to the indirect branch message
* we can't extract the address */
if (i < 4)
- {
- return -1;
- }
-
- *target = (trace_data->entries[i-1].data) | (trace_data->entries[i-2].data << 8) |
- (trace_data->entries[i-3].data << 16) | (trace_data->entries[i-4].data << 24);
+ *target = 0;
+ else
+ *target = (trace_data->entries[i-1].data) | (trace_data->entries[i-2].data << 8) |
+ (trace_data->entries[i-3].data << 16) | (trace_data->entries[i-4].data << 24);
+}
- return 0;
+static inline void xscale_display_instruction(struct target *target, uint32_t pc,
+ struct arm_instruction *instruction,
+ struct command_context *cmd_ctx)
+{
+ int retval = xscale_read_instruction(target, pc, instruction);
+ if (retval == ERROR_OK)
+ command_print(cmd_ctx, "%s", instruction->text);
+ else
+ command_print(cmd_ctx, "0x%8.8" PRIx32 "\t<not found in image>", pc);
}
static int xscale_analyze_trace(struct target *target, struct command_context *cmd_ctx)
{
- struct xscale_common *xscale = target_to_xscale(target);
- int next_pc_ok = 0;
- uint32_t next_pc = 0x0;
- struct xscale_trace_data *trace_data = xscale->trace.data;
- int retval;
+ struct xscale_common *xscale = target_to_xscale(target);
+ struct xscale_trace_data *trace_data = xscale->trace.data;
+ int i, retval;
+ uint32_t breakpoint_pc;
+ struct arm_instruction instruction;
+ uint32_t current_pc = 0; /* initialized when address determined */
+
+ if (!xscale->trace.image)
+ LOG_WARNING("No trace image loaded; use 'xscale trace_image'");
+
+ /* loop for each trace buffer that was loaded from target */
+ while (trace_data)
+ {
+ int chkpt = 0; /* incremented as checkpointed entries found */
+ int j;
+
+ /* FIXME: set this to correct mode when trace buffer is first enabled */
+ xscale->trace.core_state = ARM_STATE_ARM;
+
+ /* loop for each entry in this trace buffer */
+ for (i = 0; i < trace_data->depth; i++)
+ {
+ int exception = 0;
+ uint32_t chkpt_reg = 0x0;
+ uint32_t branch_target = 0;
+ int count;
+
+ /* trace entry type is upper nybble of 'message byte' */
+ int trace_msg_type = (trace_data->entries[i].data & 0xf0) >> 4;
+
+ /* Target addresses of indirect branches are written into buffer
+ * before the message byte representing the branch. Skip past it */
+ if (trace_data->entries[i].type == XSCALE_TRACE_ADDRESS)
+ continue;
+
+ switch (trace_msg_type)
+ {
+ case 0: /* Exceptions */
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ case 6:
+ case 7:
+ exception = (trace_data->entries[i].data & 0x70) >> 4;
+
+ /* FIXME: vector table may be at ffff0000 */
+ branch_target = (trace_data->entries[i].data & 0xf0) >> 2;
+ break;
+
+ case 8: /* Direct Branch */
+ break;
+
+ case 9: /* Indirect Branch */
+ xscale_branch_address(trace_data, i, &branch_target);
+ break;
+
+ case 13: /* Checkpointed Indirect Branch */
+ xscale_branch_address(trace_data, i, &branch_target);
+ if ((trace_data->num_checkpoints == 2) && (chkpt == 0))
+ chkpt_reg = trace_data->chkpt1; /* 2 chkpts, this is oldest */
+ else
+ chkpt_reg = trace_data->chkpt0; /* 1 chkpt, or 2 and newest */
+
+ chkpt++;
+ break;
+
+ case 12: /* Checkpointed Direct Branch */
+ if ((trace_data->num_checkpoints == 2) && (chkpt == 0))
+ chkpt_reg = trace_data->chkpt1; /* 2 chkpts, this is oldest */
+ else
+ chkpt_reg = trace_data->chkpt0; /* 1 chkpt, or 2 and newest */
+
+ /* if no current_pc, checkpoint will be starting point */
+ if (current_pc == 0)
+ branch_target = chkpt_reg;
+
+ chkpt++;
+ break;
+
+ case 15: /* Roll-over */
+ break;
+
+ default: /* Reserved */
+ LOG_WARNING("trace is suspect: invalid trace message byte");
+ continue;
+
+ }
+
+ /* If we don't have the current_pc yet, but we did get the branch target
+ * (either from the trace buffer on indirect branch, or from a checkpoint reg),
+ * then we can start displaying instructions at the next iteration, with
+ * branch_target as the starting point.
+ */
+ if (current_pc == 0)
+ {
+ current_pc = branch_target; /* remains 0 unless branch_target obtained */
+ continue;
+ }
+
+ /* We have current_pc. Read and display the instructions from the image.
+ * First, display count instructions (lower nybble of message byte). */
+ count = trace_data->entries[i].data & 0x0f;
+ for (j = 0; j < count; j++)
+ {
+ xscale_display_instruction(target, current_pc, &instruction, cmd_ctx);
+ current_pc += xscale->trace.core_state == ARM_STATE_ARM ? 4 : 2;
+ }
+
+ /* An additional instruction is implicitly added to count for
+ * rollover and some exceptions: undef, swi, prefetch abort. */
+ if ((trace_msg_type == 15) || (exception > 0 && exception < 4))
+ {
+ xscale_display_instruction(target, current_pc, &instruction, cmd_ctx);
+ current_pc += xscale->trace.core_state == ARM_STATE_ARM ? 4 : 2;
+ }
+
+ if (trace_msg_type == 15) /* rollover */
+ continue;
+
+ if (exception)
+ {
+ command_print(cmd_ctx, "--- exception %i ---", exception);
+ continue;
+ }
+
+ /* not exception or rollover; next instruction is a branch and is
+ * not included in the count */
+ xscale_display_instruction(target, current_pc, &instruction, cmd_ctx);
+
+ /* for direct branches, extract branch destination from instruction */
+ if ((trace_msg_type == 8) || (trace_msg_type == 12))
+ {
+ retval = xscale_read_instruction(target, current_pc, &instruction);
+ if (retval == ERROR_OK)
+ current_pc = instruction.info.b_bl_bx_blx.target_address;
+ else
+ current_pc = 0; /* branch destination unknown */
- while (trace_data)
- {
- int i, chkpt;
- int rollover;
- int branch;
- int exception;
- xscale->trace.core_state = ARMV4_5_STATE_ARM;
+ /* direct branch w/ checkpoint; can also get from checkpoint reg */
+ if (trace_msg_type == 12)
+ {
+ if (current_pc == 0)
+ current_pc = chkpt_reg;
+ else if (current_pc != chkpt_reg) /* sanity check */
+ LOG_WARNING("trace is suspect: checkpoint register "
+ "inconsistent with adddress from image");
+ }
- chkpt = 0;
- rollover = 0;
+ if (current_pc == 0)
+ command_print(cmd_ctx, "address unknown");
- for (i = 0; i < trace_data->depth; i++)
- {
- next_pc_ok = 0;
- branch = 0;
- exception = 0;
+ continue;
+ }
- if (trace_data->entries[i].type == XSCALE_TRACE_ADDRESS)
- continue;
+ /* indirect branch; the branch destination was read from trace buffer */
+ if ((trace_msg_type == 9) || (trace_msg_type == 13))
+ {
+ current_pc = branch_target;
- switch ((trace_data->entries[i].data & 0xf0) >> 4)
- {
- case 0: /* Exceptions */
- case 1:
- case 2:
- case 3:
- case 4:
- case 5:
- case 6:
- case 7:
- exception = (trace_data->entries[i].data & 0x70) >> 4;
- next_pc_ok = 1;
- next_pc = (trace_data->entries[i].data & 0xf0) >> 2;
- command_print(cmd_ctx, "--- exception %i ---", (trace_data->entries[i].data & 0xf0) >> 4);
- break;
- case 8: /* Direct Branch */
- branch = 1;
- break;
- case 9: /* Indirect Branch */
- branch = 1;
- if (xscale_branch_address(trace_data, i, &next_pc) == 0)
- {
- next_pc_ok = 1;
- }
- break;
- case 13: /* Checkpointed Indirect Branch */
- if (xscale_branch_address(trace_data, i, &next_pc) == 0)
- {
- next_pc_ok = 1;
- if (((chkpt == 0) && (next_pc != trace_data->chkpt0))
- || ((chkpt == 1) && (next_pc != trace_data->chkpt1)))
- LOG_WARNING("checkpointed indirect branch target address doesn't match checkpoint");
- }
- /* explicit fall-through */
- case 12: /* Checkpointed Direct Branch */
- branch = 1;
- if (chkpt == 0)
- {
- next_pc_ok = 1;
- next_pc = trace_data->chkpt0;
- chkpt++;
- }
- else if (chkpt == 1)
- {
- next_pc_ok = 1;
- next_pc = trace_data->chkpt0;
- chkpt++;
- }
- else
- {
- LOG_WARNING("more than two checkpointed branches encountered");
- }
- break;
- case 15: /* Roll-over */
- rollover++;
- continue;
- default: /* Reserved */
- command_print(cmd_ctx, "--- reserved trace message ---");
- LOG_ERROR("BUG: trace message %i is reserved", (trace_data->entries[i].data & 0xf0) >> 4);
- return ERROR_OK;
- }
+ /* sanity check (checkpoint reg is redundant) */
+ if ((trace_msg_type == 13) && (chkpt_reg != branch_target))
+ LOG_WARNING("trace is suspect: checkpoint register "
+ "inconsistent with address from trace buffer");
+ }
- if (xscale->trace.pc_ok)
- {
- int executed = (trace_data->entries[i].data & 0xf) + rollover * 16;
- struct arm_instruction instruction;
+ } /* END: for (i = 0; i < trace_data->depth; i++) */
- if ((exception == 6) || (exception == 7))
- {
- /* IRQ or FIQ exception, no instruction executed */
- executed -= 1;
- }
+ breakpoint_pc = trace_data->last_instruction; /* used below */
+ trace_data = trace_data->next;
- while (executed-- >= 0)
- {
- if ((retval = xscale_read_instruction(target, &instruction)) != ERROR_OK)
- {
- /* can't continue tracing with no image available */
- if (retval == ERROR_TRACE_IMAGE_UNAVAILABLE)
- {
- return retval;
- }
- else if (retval == ERROR_TRACE_INSTRUCTION_UNAVAILABLE)
- {
- /* TODO: handle incomplete images */
- }
- }
-
- /* a precise abort on a load to the PC is included in the incremental
- * word count, other instructions causing data aborts are not included
- */
- if ((executed == 0) && (exception == 4)
- && ((instruction.type >= ARM_LDR) && (instruction.type <= ARM_LDM)))
- {
- if ((instruction.type == ARM_LDM)
- && ((instruction.info.load_store_multiple.register_list & 0x8000) == 0))
- {
- executed--;
- }
- else if (((instruction.type >= ARM_LDR) && (instruction.type <= ARM_LDRSH))
- && (instruction.info.load_store.Rd != 15))
- {
- executed--;
- }
- }
-
- /* only the last instruction executed
- * (the one that caused the control flow change)
- * could be a taken branch
- */
- if (((executed == -1) && (branch == 1)) &&
- (((instruction.type == ARM_B) ||
- (instruction.type == ARM_BL) ||
- (instruction.type == ARM_BLX)) &&
- (instruction.info.b_bl_bx_blx.target_address != 0xffffffff)))
- {
- xscale->trace.current_pc = instruction.info.b_bl_bx_blx.target_address;
- }
- else
- {
- xscale->trace.current_pc += (xscale->trace.core_state == ARMV4_5_STATE_ARM) ? 4 : 2;
- }
- command_print(cmd_ctx, "%s", instruction.text);
- }
+ } /* END: while (trace_data) */
- rollover = 0;
- }
+ /* Finally... display all instructions up to the value of the pc when the
+ * debug break occurred (saved when trace data was collected from target).
+ * This is necessary because the trace only records execution branches and 16
+ * consecutive instructions (rollovers), so last few typically missed.
+ */
+ if (current_pc == 0)
+ return ERROR_OK; /* current_pc was never found */
- if (next_pc_ok)
- {
- xscale->trace.current_pc = next_pc;
- xscale->trace.pc_ok = 1;
- }
- }
+ /* how many instructions remaining? */
+ int gap_count = (breakpoint_pc - current_pc) /
+ (xscale->trace.core_state == ARM_STATE_ARM ? 4 : 2);
- for (; xscale->trace.current_pc < trace_data->last_instruction; xscale->trace.current_pc += (xscale->trace.core_state == ARMV4_5_STATE_ARM) ? 4 : 2)
- {
- struct arm_instruction instruction;
- if ((retval = xscale_read_instruction(target, &instruction)) != ERROR_OK)
- {
- /* can't continue tracing with no image available */
- if (retval == ERROR_TRACE_IMAGE_UNAVAILABLE)
- {
- return retval;
- }
- else if (retval == ERROR_TRACE_INSTRUCTION_UNAVAILABLE)
- {
- /* TODO: handle incomplete images */
- }
- }
- command_print(cmd_ctx, "%s", instruction.text);
- }
+ /* should never be negative or over 16, but verify */
+ if (gap_count < 0 || gap_count > 16)
+ {
+ LOG_WARNING("trace is suspect: excessive gap at end of trace");
+ return ERROR_OK; /* bail; large number or negative value no good */
+ }
- trace_data = trace_data->next;
- }
+ /* display remaining instructions */
+ for (i = 0; i < gap_count; i++)
+ {
+ xscale_display_instruction(target, current_pc, &instruction, cmd_ctx);
+ current_pc += xscale->trace.core_state == ARM_STATE_ARM ? 4 : 2;
+ }
- return ERROR_OK;
+ return ERROR_OK;
}
+static const struct reg_arch_type xscale_reg_type = {
+ .get = xscale_get_reg,
+ .set = xscale_set_reg,
+};
+
static void xscale_build_reg_cache(struct target *target)
{
struct xscale_common *xscale = target_to_xscale(target);
- struct armv4_5_common_s *armv4_5 = &xscale->armv4_5_common;
+ struct arm *armv4_5 = &xscale->armv4_5_common;
struct reg_cache **cache_p = register_get_last_cache_p(&target->reg_cache);
struct xscale_reg *arch_info = malloc(sizeof(xscale_reg_arch_info));
int i;
- int num_regs = sizeof(xscale_reg_arch_info) / sizeof(struct xscale_reg);
-
- (*cache_p) = armv4_5_build_reg_cache(target, armv4_5);
- armv4_5->core_cache = (*cache_p);
+ int num_regs = ARRAY_SIZE(xscale_reg_arch_info);
- /* register a register arch-type for XScale dbg registers only once */
- if (xscale_reg_arch_type == -1)
- xscale_reg_arch_type = register_reg_arch_type(xscale_get_reg, xscale_set_reg);
+ (*cache_p) = arm_build_reg_cache(target, armv4_5);
(*cache_p)->next = malloc(sizeof(struct reg_cache));
cache_p = &(*cache_p)->next;
(*cache_p)->reg_list[i].valid = 0;
(*cache_p)->reg_list[i].size = 32;
(*cache_p)->reg_list[i].arch_info = &arch_info[i];
- (*cache_p)->reg_list[i].arch_type = xscale_reg_arch_type;
+ (*cache_p)->reg_list[i].type = &xscale_reg_type;
arch_info[i] = xscale_reg_arch_info[i];
arch_info[i].target = target;
}
armv4_5 = &xscale->armv4_5_common;
- /* store architecture specfic data (none so far) */
+ /* store architecture specfic data */
xscale->common_magic = XSCALE_COMMON_MAGIC;
- /* we don't really *need* variant info ... */
+ /* we don't really *need* a variant param ... */
if (variant) {
int ir_length = 0;
|| strcmp(variant, "ixp45x") == 0
|| strcmp(variant, "ixp46x") == 0)
ir_length = 7;
+ else if (strcmp(variant, "pxa3xx") == 0)
+ ir_length = 11;
else
LOG_WARNING("%s: unrecognized variant %s",
tap->dotted_name, variant);
}
}
+ /* PXA3xx shifts the JTAG instructions */
+ if (tap->ir_length == 11)
+ xscale->xscale_variant = XSCALE_PXA3XX;
+ else
+ xscale->xscale_variant = XSCALE_IXP4XX_PXA2XX;
+
/* the debug handler isn't installed (and thus not running) at this time */
xscale->handler_address = 0xfe000800;
xscale->dbr0_used = 0;
xscale->dbr1_used = 0;
+ LOG_INFO("%s: hardware has 2 breakpoints and 2 watchpoints",
+ target_name(target));
+
xscale->arm_bkpt = ARMV5_BKPT(0x0);
xscale->thumb_bkpt = ARMV5_T_BKPT(0x0) & 0xffff;
armv4_5->write_core_reg = xscale_write_core_reg;
armv4_5->full_context = xscale_full_context;
- armv4_5_init_arch_info(target, armv4_5);
+ arm_init_arch_info(target, armv4_5);
xscale->armv4_5_mmu.armv4_5_cache.ctype = -1;
xscale->armv4_5_mmu.get_ttb = xscale_get_ttb;
int retval;
uint32_t handler_address;
- if (argc < 2)
+ if (CMD_ARGC < 2)
{
LOG_ERROR("'xscale debug_handler <target#> <address>' command takes two required operands");
return ERROR_OK;
}
- if ((target = get_target(args[0])) == NULL)
+ if ((target = get_target(CMD_ARGV[0])) == NULL)
{
- LOG_ERROR("target '%s' not defined", args[0]);
+ LOG_ERROR("target '%s' not defined", CMD_ARGV[0]);
return ERROR_FAIL;
}
xscale = target_to_xscale(target);
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
- COMMAND_PARSE_NUMBER(u32, args[1], handler_address);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], handler_address);
if (((handler_address >= 0x800) && (handler_address <= 0x1fef800)) ||
((handler_address >= 0xfe000800) && (handler_address <= 0xfffff800)))
int retval;
uint32_t cache_clean_address;
- if (argc < 2)
+ if (CMD_ARGC < 2)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
- target = get_target(args[0]);
+ target = get_target(CMD_ARGV[0]);
if (target == NULL)
{
- LOG_ERROR("target '%s' not defined", args[0]);
+ LOG_ERROR("target '%s' not defined", CMD_ARGV[0]);
return ERROR_FAIL;
}
xscale = target_to_xscale(target);
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
- COMMAND_PARSE_NUMBER(u32, args[1], cache_clean_address);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], cache_clean_address);
if (cache_clean_address & 0xffff)
{
COMMAND_HANDLER(xscale_handle_cache_info_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
- return armv4_5_handle_cache_info_command(cmd_ctx, &xscale->armv4_5_mmu.armv4_5_cache);
+ return armv4_5_handle_cache_info_command(CMD_CTX, &xscale->armv4_5_mmu.armv4_5_cache);
}
static int xscale_virt2phys(struct target *target,
uint32_t virtual, uint32_t *physical)
{
struct xscale_common *xscale = target_to_xscale(target);
- int type;
uint32_t cb;
- int domain;
- uint32_t ap;
if (xscale->common_magic != XSCALE_COMMON_MAGIC) {
LOG_ERROR(xscale_not);
return ERROR_TARGET_INVALID;
}
- uint32_t ret = armv4_5_mmu_translate_va(target, &xscale->armv4_5_mmu, virtual, &type, &cb, &domain, &ap);
- if (type == -1)
- {
- return ret;
- }
+ uint32_t ret;
+ int retval = armv4_5_mmu_translate_va(target, &xscale->armv4_5_mmu,
+ virtual, &cb, &ret);
+ if (retval != ERROR_OK)
+ return retval;
*physical = ret;
return ERROR_OK;
}
COMMAND_HANDLER(xscale_handle_mmu_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
if (target->state != TARGET_HALTED)
{
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", CMD_NAME);
+ command_print(CMD_CTX, "target must be stopped for \"%s\" command", CMD_NAME);
return ERROR_OK;
}
- if (argc >= 1)
+ if (CMD_ARGC >= 1)
{
- if (strcmp("enable", args[0]) == 0)
- {
+ bool enable;
+ COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
+ if (enable)
xscale_enable_mmu_caches(target, 1, 0, 0);
- xscale->armv4_5_mmu.mmu_enabled = 1;
- }
- else if (strcmp("disable", args[0]) == 0)
- {
+ else
xscale_disable_mmu_caches(target, 1, 0, 0);
- xscale->armv4_5_mmu.mmu_enabled = 0;
- }
+ xscale->armv4_5_mmu.mmu_enabled = enable;
}
- command_print(cmd_ctx, "mmu %s", (xscale->armv4_5_mmu.mmu_enabled) ? "enabled" : "disabled");
+ command_print(CMD_CTX, "mmu %s", (xscale->armv4_5_mmu.mmu_enabled) ? "enabled" : "disabled");
return ERROR_OK;
}
COMMAND_HANDLER(xscale_handle_idcache_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
- int icache = 0, dcache = 0;
- int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ int retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
if (target->state != TARGET_HALTED)
{
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", CMD_NAME);
+ command_print(CMD_CTX, "target must be stopped for \"%s\" command", CMD_NAME);
return ERROR_OK;
}
+ bool icache = false;
if (strcmp(CMD_NAME, "icache") == 0)
- icache = 1;
- else if (strcmp(CMD_NAME, "dcache") == 0)
- dcache = 1;
-
- if (argc >= 1)
- {
- if (strcmp("enable", args[0]) == 0)
- {
- xscale_enable_mmu_caches(target, 0, dcache, icache);
-
- if (icache)
- xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 1;
- else if (dcache)
- xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = 1;
- }
- else if (strcmp("disable", args[0]) == 0)
- {
- xscale_disable_mmu_caches(target, 0, dcache, icache);
-
- if (icache)
- xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
- else if (dcache)
- xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = 0;
+ icache = true;
+ if (CMD_ARGC >= 1)
+ {
+ bool enable;
+ COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
+ if (icache) {
+ xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled = enable;
+ if (enable)
+ xscale_enable_mmu_caches(target, 0, 0, 1);
+ else
+ xscale_disable_mmu_caches(target, 0, 0, 1);
+ } else {
+ xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = enable;
+ if (enable)
+ xscale_enable_mmu_caches(target, 0, 1, 0);
+ else
+ xscale_disable_mmu_caches(target, 0, 1, 0);
}
}
- if (icache)
- command_print(cmd_ctx, "icache %s", (xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled) ? "enabled" : "disabled");
-
- if (dcache)
- command_print(cmd_ctx, "dcache %s", (xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled) ? "enabled" : "disabled");
+ bool enabled = icache ?
+ xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled :
+ xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled;
+ const char *msg = enabled ? "enabled" : "disabled";
+ command_print(CMD_CTX, "%s %s", CMD_NAME, msg);
return ERROR_OK;
}
COMMAND_HANDLER(xscale_handle_vector_catch_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
- if (argc < 1)
+ if (CMD_ARGC < 1)
{
- command_print(cmd_ctx, "usage: xscale vector_catch [mask]");
+ command_print(CMD_CTX, "usage: xscale vector_catch [mask]");
}
else
{
- COMMAND_PARSE_NUMBER(u8, args[0], xscale->vector_catch);
+ COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0], xscale->vector_catch);
buf_set_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 16, 8, xscale->vector_catch);
xscale_write_dcsr(target, -1, -1);
}
- command_print(cmd_ctx, "vector catch mask: 0x%2.2x", xscale->vector_catch);
+ command_print(CMD_CTX, "vector catch mask: 0x%2.2x", xscale->vector_catch);
return ERROR_OK;
}
COMMAND_HANDLER(xscale_handle_vector_table_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
int err = 0;
int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
- if (argc == 0) /* print current settings */
+ if (CMD_ARGC == 0) /* print current settings */
{
int idx;
- command_print(cmd_ctx, "active user-set static vectors:");
+ command_print(CMD_CTX, "active user-set static vectors:");
for (idx = 1; idx < 8; idx++)
if (xscale->static_low_vectors_set & (1 << idx))
- command_print(cmd_ctx, "low %d: 0x%" PRIx32, idx, xscale->static_low_vectors[idx]);
+ command_print(CMD_CTX, "low %d: 0x%" PRIx32, idx, xscale->static_low_vectors[idx]);
for (idx = 1; idx < 8; idx++)
if (xscale->static_high_vectors_set & (1 << idx))
- command_print(cmd_ctx, "high %d: 0x%" PRIx32, idx, xscale->static_high_vectors[idx]);
+ command_print(CMD_CTX, "high %d: 0x%" PRIx32, idx, xscale->static_high_vectors[idx]);
return ERROR_OK;
}
- if (argc != 3)
+ if (CMD_ARGC != 3)
err = 1;
else
{
int idx;
- COMMAND_PARSE_NUMBER(int, args[1], idx);
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], idx);
uint32_t vec;
- COMMAND_PARSE_NUMBER(u32, args[2], vec);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], vec);
if (idx < 1 || idx >= 8)
err = 1;
- if (!err && strcmp(args[0], "low") == 0)
+ if (!err && strcmp(CMD_ARGV[0], "low") == 0)
{
xscale->static_low_vectors_set |= (1<<idx);
xscale->static_low_vectors[idx] = vec;
}
- else if (!err && (strcmp(args[0], "high") == 0))
+ else if (!err && (strcmp(CMD_ARGV[0], "high") == 0))
{
xscale->static_high_vectors_set |= (1<<idx);
xscale->static_high_vectors[idx] = vec;
}
if (err)
- command_print(cmd_ctx, "usage: xscale vector_table <high|low> <index> <code>");
+ command_print(CMD_CTX, "usage: xscale vector_table <high|low> <index> <code>");
return ERROR_OK;
}
COMMAND_HANDLER(xscale_handle_trace_buffer_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
- struct armv4_5_common_s *armv4_5 = &xscale->armv4_5_common;
uint32_t dcsr_value;
int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
if (target->state != TARGET_HALTED)
{
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", CMD_NAME);
+ command_print(CMD_CTX, "target must be stopped for \"%s\" command", CMD_NAME);
return ERROR_OK;
}
- if ((argc >= 1) && (strcmp("enable", args[0]) == 0))
+ if ((CMD_ARGC >= 1) && (strcmp("enable", CMD_ARGV[0]) == 0))
{
struct xscale_trace_data *td, *next_td;
xscale->trace.buffer_enabled = 1;
}
xscale->trace.data = NULL;
}
- else if ((argc >= 1) && (strcmp("disable", args[0]) == 0))
+ else if ((CMD_ARGC >= 1) && (strcmp("disable", CMD_ARGV[0]) == 0))
{
xscale->trace.buffer_enabled = 0;
}
- if ((argc >= 2) && (strcmp("fill", args[1]) == 0))
+ if ((CMD_ARGC >= 2) && (strcmp("fill", CMD_ARGV[1]) == 0))
{
uint32_t fill = 1;
- if (argc >= 3)
- COMMAND_PARSE_NUMBER(u32, args[2], fill);
+ if (CMD_ARGC >= 3)
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], fill);
xscale->trace.buffer_fill = fill;
}
- else if ((argc >= 2) && (strcmp("wrap", args[1]) == 0))
+ else if ((CMD_ARGC >= 2) && (strcmp("wrap", CMD_ARGV[1]) == 0))
{
xscale->trace.buffer_fill = -1;
}
- if (xscale->trace.buffer_enabled)
- {
- /* if we enable the trace buffer in fill-once
- * mode we know the address of the first instruction */
- xscale->trace.pc_ok = 1;
- xscale->trace.current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
- }
- else
- {
- /* otherwise the address is unknown, and we have no known good PC */
- xscale->trace.pc_ok = 0;
- }
-
- command_print(cmd_ctx, "trace buffer %s (%s)",
+ command_print(CMD_CTX, "trace buffer %s (%s)",
(xscale->trace.buffer_enabled) ? "enabled" : "disabled",
(xscale->trace.buffer_fill > 0) ? "fill" : "wrap");
COMMAND_HANDLER(xscale_handle_trace_image_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
int retval;
- if (argc < 1)
+ if (CMD_ARGC < 1)
{
- command_print(cmd_ctx, "usage: xscale trace_image <file> [base address] [type]");
+ command_print(CMD_CTX, "usage: xscale trace_image <file> [base address] [type]");
return ERROR_OK;
}
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
{
image_close(xscale->trace.image);
free(xscale->trace.image);
- command_print(cmd_ctx, "previously loaded image found and closed");
+ command_print(CMD_CTX, "previously loaded image found and closed");
}
xscale->trace.image = malloc(sizeof(struct image));
xscale->trace.image->start_address_set = 0;
/* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
- if (argc >= 2)
+ if (CMD_ARGC >= 2)
{
xscale->trace.image->base_address_set = 1;
- COMMAND_PARSE_NUMBER(int, args[1], xscale->trace.image->base_address);
+ COMMAND_PARSE_NUMBER(llong, CMD_ARGV[1], xscale->trace.image->base_address);
}
else
{
xscale->trace.image->base_address_set = 0;
}
- if (image_open(xscale->trace.image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
+ if (image_open(xscale->trace.image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
{
free(xscale->trace.image);
xscale->trace.image = NULL;
COMMAND_HANDLER(xscale_handle_dump_trace_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
struct xscale_trace_data *trace_data;
struct fileio file;
int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
if (target->state != TARGET_HALTED)
{
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", CMD_NAME);
+ command_print(CMD_CTX, "target must be stopped for \"%s\" command", CMD_NAME);
return ERROR_OK;
}
- if (argc < 1)
+ if (CMD_ARGC < 1)
{
- command_print(cmd_ctx, "usage: xscale dump_trace <file>");
+ command_print(CMD_CTX, "usage: xscale dump_trace <file>");
return ERROR_OK;
}
if (!trace_data)
{
- command_print(cmd_ctx, "no trace data collected");
+ command_print(CMD_CTX, "no trace data collected");
return ERROR_OK;
}
- if (fileio_open(&file, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
+ if (fileio_open(&file, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
{
return ERROR_OK;
}
COMMAND_HANDLER(xscale_handle_analyze_trace_buffer_command)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
- xscale_analyze_trace(target, cmd_ctx);
+ xscale_analyze_trace(target, CMD_CTX);
return ERROR_OK;
}
COMMAND_HANDLER(xscale_handle_cp15)
{
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct xscale_common *xscale = target_to_xscale(target);
int retval;
- retval = xscale_verify_pointer(cmd_ctx, xscale);
+ retval = xscale_verify_pointer(CMD_CTX, xscale);
if (retval != ERROR_OK)
return retval;
if (target->state != TARGET_HALTED)
{
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", CMD_NAME);
+ command_print(CMD_CTX, "target must be stopped for \"%s\" command", CMD_NAME);
return ERROR_OK;
}
uint32_t reg_no = 0;
struct reg *reg = NULL;
- if (argc > 0)
+ if (CMD_ARGC > 0)
{
- COMMAND_PARSE_NUMBER(u32, args[0], reg_no);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], reg_no);
/*translate from xscale cp15 register no to openocd register*/
switch (reg_no)
{
reg_no = XSCALE_CPACCESS;
break;
default:
- command_print(cmd_ctx, "invalid register number");
+ command_print(CMD_CTX, "invalid register number");
return ERROR_INVALID_ARGUMENTS;
}
reg = &xscale->reg_cache->reg_list[reg_no];
}
- if (argc == 1)
+ if (CMD_ARGC == 1)
{
uint32_t value;
/* read cp15 control register */
xscale_get_reg(reg);
value = buf_get_u32(reg->value, 0, 32);
- command_print(cmd_ctx, "%s (/%i): 0x%" PRIx32 "", reg->name, (int)(reg->size), value);
+ command_print(CMD_CTX, "%s (/%i): 0x%" PRIx32 "", reg->name, (int)(reg->size), value);
}
- else if (argc == 2)
+ else if (CMD_ARGC == 2)
{
uint32_t value;
- COMMAND_PARSE_NUMBER(u32, args[1], value);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
/* send CP write request (command 0x41) */
xscale_send_u32(target, 0x41);
}
else
{
- command_print(cmd_ctx, "usage: cp15 [register]<, [value]>");
+ command_print(CMD_CTX, "usage: cp15 [register]<, [value]>");
}
return ERROR_OK;
}
-static int xscale_register_commands(struct command_context *cmd_ctx)
-{
- struct command *xscale_cmd;
-
- xscale_cmd = register_command(cmd_ctx, NULL, "xscale", NULL, COMMAND_ANY, "xscale specific commands");
-
- register_command(cmd_ctx, xscale_cmd, "debug_handler", xscale_handle_debug_handler_command, COMMAND_ANY, "'xscale debug_handler <target#> <address>' command takes two required operands");
- register_command(cmd_ctx, xscale_cmd, "cache_clean_address", xscale_handle_cache_clean_address_command, COMMAND_ANY, NULL);
-
- register_command(cmd_ctx, xscale_cmd, "cache_info", xscale_handle_cache_info_command, COMMAND_EXEC, NULL);
- register_command(cmd_ctx, xscale_cmd, "mmu", xscale_handle_mmu_command, COMMAND_EXEC, "['enable'|'disable'] the MMU");
- register_command(cmd_ctx, xscale_cmd, "icache", xscale_handle_idcache_command, COMMAND_EXEC, "['enable'|'disable'] the ICache");
- register_command(cmd_ctx, xscale_cmd, "dcache", xscale_handle_idcache_command, COMMAND_EXEC, "['enable'|'disable'] the DCache");
-
- register_command(cmd_ctx, xscale_cmd, "vector_catch", xscale_handle_vector_catch_command, COMMAND_EXEC, "<mask> of vectors that should be catched");
- register_command(cmd_ctx, xscale_cmd, "vector_table", xscale_handle_vector_table_command, COMMAND_EXEC, "<high|low> <index> <code> set static code for exception handler entry");
-
- register_command(cmd_ctx, xscale_cmd, "trace_buffer", xscale_handle_trace_buffer_command, COMMAND_EXEC, "<enable | disable> ['fill' [n]|'wrap']");
-
- register_command(cmd_ctx, xscale_cmd, "dump_trace", xscale_handle_dump_trace_command, COMMAND_EXEC, "dump content of trace buffer to <file>");
- register_command(cmd_ctx, xscale_cmd, "analyze_trace", xscale_handle_analyze_trace_buffer_command, COMMAND_EXEC, "analyze content of trace buffer");
- register_command(cmd_ctx, xscale_cmd, "trace_image", xscale_handle_trace_image_command,
- COMMAND_EXEC, "load image from <file> [base address]");
-
- register_command(cmd_ctx, xscale_cmd, "cp15", xscale_handle_cp15, COMMAND_EXEC, "access coproc 15 <register> [value]");
-
- armv4_5_register_commands(cmd_ctx);
-
- return ERROR_OK;
-}
+static const struct command_registration xscale_exec_command_handlers[] = {
+ {
+ .name = "cache_info",
+ .handler = xscale_handle_cache_info_command,
+ .mode = COMMAND_EXEC,
+ .help = "display information about CPU caches",
+ },
+ {
+ .name = "mmu",
+ .handler = xscale_handle_mmu_command,
+ .mode = COMMAND_EXEC,
+ .help = "enable or disable the MMU",
+ .usage = "['enable'|'disable']",
+ },
+ {
+ .name = "icache",
+ .handler = xscale_handle_idcache_command,
+ .mode = COMMAND_EXEC,
+ .help = "display ICache state, optionally enabling or "
+ "disabling it",
+ .usage = "['enable'|'disable']",
+ },
+ {
+ .name = "dcache",
+ .handler = xscale_handle_idcache_command,
+ .mode = COMMAND_EXEC,
+ .help = "display DCache state, optionally enabling or "
+ "disabling it",
+ .usage = "['enable'|'disable']",
+ },
+ {
+ .name = "vector_catch",
+ .handler = xscale_handle_vector_catch_command,
+ .mode = COMMAND_EXEC,
+ .help = "set or display 8-bit mask of vectors "
+ "that should trigger debug entry",
+ .usage = "[mask]",
+ },
+ {
+ .name = "vector_table",
+ .handler = xscale_handle_vector_table_command,
+ .mode = COMMAND_EXEC,
+ .help = "set vector table entry in mini-ICache, "
+ "or display current tables",
+ .usage = "[('high'|'low') index code]",
+ },
+ {
+ .name = "trace_buffer",
+ .handler = xscale_handle_trace_buffer_command,
+ .mode = COMMAND_EXEC,
+ .help = "display trace buffer status, enable or disable "
+ "tracing, and optionally reconfigure trace mode",
+ .usage = "['enable'|'disable' ['fill' number|'wrap']]",
+ },
+ {
+ .name = "dump_trace",
+ .handler = xscale_handle_dump_trace_command,
+ .mode = COMMAND_EXEC,
+ .help = "dump content of trace buffer to file",
+ .usage = "filename",
+ },
+ {
+ .name = "analyze_trace",
+ .handler = xscale_handle_analyze_trace_buffer_command,
+ .mode = COMMAND_EXEC,
+ .help = "analyze content of trace buffer",
+ .usage = "",
+ },
+ {
+ .name = "trace_image",
+ .handler = xscale_handle_trace_image_command,
+ .mode = COMMAND_EXEC,
+ .help = "load image from file to address (default 0)",
+ .usage = "filename [offset [filetype]]",
+ },
+ {
+ .name = "cp15",
+ .handler = xscale_handle_cp15,
+ .mode = COMMAND_EXEC,
+ .help = "Read or write coprocessor 15 register.",
+ .usage = "register [value]",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+static const struct command_registration xscale_any_command_handlers[] = {
+ {
+ .name = "debug_handler",
+ .handler = xscale_handle_debug_handler_command,
+ .mode = COMMAND_ANY,
+ .help = "Change address used for debug handler.",
+ .usage = "target address",
+ },
+ {
+ .name = "cache_clean_address",
+ .handler = xscale_handle_cache_clean_address_command,
+ .mode = COMMAND_ANY,
+ .help = "Change address used for cleaning data cache.",
+ .usage = "address",
+ },
+ {
+ .chain = xscale_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+static const struct command_registration xscale_command_handlers[] = {
+ {
+ .chain = arm_command_handlers,
+ },
+ {
+ .name = "xscale",
+ .mode = COMMAND_ANY,
+ .help = "xscale command group",
+ .chain = xscale_any_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
struct target_type xscale_target =
{
.deassert_reset = xscale_deassert_reset,
.soft_reset_halt = NULL,
- .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
+ /* REVISIT on some cores, allow exporting iwmmxt registers ... */
+ .get_gdb_reg_list = arm_get_gdb_reg_list,
.read_memory = xscale_read_memory,
+ .read_phys_memory = xscale_read_phys_memory,
.write_memory = xscale_write_memory,
+ .write_phys_memory = xscale_write_phys_memory,
.bulk_write_memory = xscale_bulk_write_memory,
.checksum_memory = arm_checksum_memory,
.add_watchpoint = xscale_add_watchpoint,
.remove_watchpoint = xscale_remove_watchpoint,
- .register_commands = xscale_register_commands,
+ .commands = xscale_command_handlers,
.target_create = xscale_target_create,
.init_target = xscale_init_target,
projects / fw / openocd / blobdiff