#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 *);
"", "\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");
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 ,
- arm_mode_name(armv4_5->core_mode),
- buf_get_u32(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],
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) */
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) */
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)
static int xscale_step(struct target *target, int current,
uint32_t address, int handle_breakpoints)
{
- struct arm *armv4_5 = target_to_armv4_5(target);
+ struct arm *armv4_5 = target_to_arm(target);
struct breakpoint *breakpoint = target->breakpoints;
uint32_t current_pc;
}
static int xscale_read_core_reg(struct target *target, struct reg *r,
- int num, enum armv4_5_mode mode)
+ int num, enum arm_mode mode)
{
/** \todo add debug handler support for core register reads */
LOG_ERROR("not implemented");
}
static int xscale_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)
{
/** \todo add debug handler support for core register writes */
LOG_ERROR("not implemented");
static int xscale_full_context(struct target *target)
{
- struct arm *armv4_5 = target_to_armv4_5(target);
+ struct arm *armv4_5 = target_to_arm(target);
uint32_t *buffer;
*/
for (i = 1; i < 7; i++)
{
- enum armv4_5_mode mode = armv4_5_number_to_mode(i);
+ enum arm_mode mode = armv4_5_number_to_mode(i);
bool valid = true;
struct reg *r;
- if (mode == ARMV4_5_MODE_USR)
+ if (mode == ARM_MODE_USR)
continue;
/* check if there are invalid registers in the current mode
mode, j).valid)
valid = false;
}
+ if (valid)
+ continue;
- if (!valid)
- {
- uint32_t tmp_cpsr;
-
- /* request banked registers */
- xscale_send_u32(target, 0x0);
-
- tmp_cpsr = 0x0;
- tmp_cpsr |= mode;
- 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
- * if not in USR/SYS mode
- */
- if (mode != ARMV4_5_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);
- }
+ /* request banked registers */
+ xscale_send_u32(target, 0x0);
- /* 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);
+ /* send CPSR for desired bank mode */
+ xscale_send_u32(target, mode | 0xc0 /* I/F bits */);
- buf_set_u32(r->value, 0, 32, buffer[j - 8]);
- r->dirty = false;
- r->valid = true;
- }
+ /* 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);
+ }
+
+ /* 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);
+
+ 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 arm *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;
-
- /* send banked registers */
- xscale_send_u32(target, 0x1);
+ /* there's nothing to flush for this mode */
+ continue;
- tmp_cpsr = 0x0;
- tmp_cpsr |= armv4_5_number_to_mode(i);
- tmp_cpsr |= 0xc0; /* I/F bits */
+dirty:
+ /* command 0x1: "send banked registers" */
+ xscale_send_u32(target, 0x1);
- /* send CPSR for desired mode */
- xscale_send_u32(target, tmp_cpsr);
+ /* send CPSR for desired mode */
+ xscale_send_u32(target, mode | 0xc0 /* I/F bits */);
- /* 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;
}
}
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,
opcode = target_buffer_get_u32(target, buf);
arm_evaluate_opcode(opcode, xscale->trace.current_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,
int rollover;
int branch;
int exception;
- xscale->trace.core_state = ARMV4_5_STATE_ARM;
+ xscale->trace.core_state = ARM_STATE_ARM;
chkpt = 0;
rollover = 0;
}
else
{
- xscale->trace.current_pc += (xscale->trace.core_state == ARMV4_5_STATE_ARM) ? 4 : 2;
+ xscale->trace.current_pc += (xscale->trace.core_state == ARM_STATE_ARM) ? 4 : 2;
}
command_print(cmd_ctx, "%s", instruction.text);
}
}
}
- for (; xscale->trace.current_pc < trace_data->last_instruction; xscale->trace.current_pc += (xscale->trace.core_state == ARMV4_5_STATE_ARM) ? 4 : 2)
+ for (; xscale->trace.current_pc < trace_data->last_instruction; xscale->trace.current_pc += (xscale->trace.core_state == ARM_STATE_ARM) ? 4 : 2)
{
struct arm_instruction instruction;
if ((retval = xscale_read_instruction(target, &instruction)) != ERROR_OK)
int i;
int num_regs = ARRAY_SIZE(xscale_reg_arch_info);
- (*cache_p) = armv4_5_build_reg_cache(target, armv4_5);
+ (*cache_p) = arm_build_reg_cache(target, armv4_5);
(*cache_p)->next = malloc(sizeof(struct reg_cache));
cache_p = &(*cache_p)->next;
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;
.deassert_reset = xscale_deassert_reset,
.soft_reset_halt = NULL,
- .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
+ .get_gdb_reg_list = arm_get_gdb_reg_list,
.read_memory = xscale_read_memory,
.read_phys_memory = xscale_read_phys_memory,
projects / fw / openocd / blobdiff