Commit 05d14385 authored by oharboe's avatar oharboe
Browse files

Fix crash when mode number fetched from the target is invalid.

git-svn-id: svn://svn.berlios.de/openocd/trunk@667 b42882b7-edfa-0310-969c-e2dbd0fdcd60
parent a76c3433
......@@ -904,6 +904,9 @@ int arm7_9_soft_reset_halt(struct target_s *target)
armv4_5->core_mode = ARMV4_5_MODE_SVC;
armv4_5->core_state = ARMV4_5_STATE_ARM;
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
/* reset registers */
for (i = 0; i <= 14; i++)
{
......@@ -1091,6 +1094,8 @@ int arm7_9_debug_entry(target_t *target)
LOG_ERROR("unknown debug reason: %i", target->debug_reason);
}
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
for (i=0; i<=15; i++)
{
......@@ -1102,6 +1107,9 @@ int arm7_9_debug_entry(target_t *target)
LOG_DEBUG("entered debug state at PC 0x%x", context[15]);
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
/* exceptions other than USR & SYS have a saved program status register */
if ((armv4_5_mode_to_number(armv4_5->core_mode) != ARMV4_5_MODE_USR) && (armv4_5_mode_to_number(armv4_5->core_mode) != ARMV4_5_MODE_SYS))
{
......@@ -1141,6 +1149,9 @@ int arm7_9_full_context(target_t *target)
return ERROR_TARGET_NOT_HALTED;
}
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
/* iterate through processor modes (User, FIQ, IRQ, SVC, ABT, UND)
* SYS shares registers with User, so we don't touch SYS
*/
......@@ -1226,6 +1237,9 @@ int arm7_9_restore_context(target_t *target)
if (arm7_9->pre_restore_context)
arm7_9->pre_restore_context(target);
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
/* iterate through processor modes (User, FIQ, IRQ, SVC, ABT, UND)
* SYS shares registers with User, so we don't touch SYS
*/
......@@ -1635,6 +1649,10 @@ int arm7_9_read_core_reg(struct target_s *target, int num, enum armv4_5_mode mod
int retval;
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
enum armv4_5_mode reg_mode = ((armv4_5_core_reg_t*)ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).arch_info)->mode;
if ((num < 0) || (num > 16))
......@@ -1696,6 +1714,10 @@ int arm7_9_write_core_reg(struct target_s *target, int num, enum armv4_5_mode mo
u32 reg[16];
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
enum armv4_5_mode reg_mode = ((armv4_5_core_reg_t*)ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).arch_info)->mode;
if ((num < 0) || (num > 16))
......@@ -1871,6 +1893,9 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count
break;
}
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
for (i=0; i<=last_reg; i++)
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).valid;
......@@ -2038,6 +2063,9 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun
buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGACK, 1, 1);
embeddedice_store_reg(dbg_ctrl);
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
for (i=0; i<=last_reg; i++)
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).valid;
......
......@@ -335,6 +335,9 @@ int arm920t_read_cp15_interpreted(target_t *target, u32 cp15_opcode, u32 address
LOG_DEBUG("cp15_opcode: %8.8x, address: %8.8x, value: %8.8x", cp15_opcode, address, *value);
#endif
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).dirty = 1;
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).dirty = 1;
......@@ -370,6 +373,9 @@ int arm920t_write_cp15_interpreted(target_t *target, u32 cp15_opcode, u32 value,
LOG_DEBUG("cp15_opcode: %8.8x, value: %8.8x, address: %8.8x", cp15_opcode, value, address);
#endif
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).dirty = 1;
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).dirty = 1;
......@@ -1000,6 +1006,9 @@ int arm920t_handle_read_cache_command(struct command_context_s *cmd_ctx, char *c
fclose(output);
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
/* mark registers dirty. */
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).valid;
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).valid;
......@@ -1261,6 +1270,9 @@ int arm920t_handle_read_mmu_command(struct command_context_s *cmd_ctx, char *cmd
fclose(output);
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
/* mark registers dirty */
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).valid;
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).valid;
......
......@@ -329,6 +329,9 @@ int handle_armv4_5_reg_command(struct command_context_s *cmd_ctx, char *cmd, cha
return ERROR_OK;
}
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
for (num = 0; num <= 15; num++)
{
output_len = 0;
......@@ -441,6 +444,9 @@ int armv4_5_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list
armv4_5_common_t *armv4_5 = target->arch_info;
int i;
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
*reg_list_size = 26;
*reg_list = malloc(sizeof(reg_t*) * (*reg_list_size));
......@@ -485,6 +491,9 @@ int armv4_5_run_algorithm(struct target_s *target, int num_mem_params, mem_param
return ERROR_TARGET_NOT_HALTED;
}
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
for (i = 0; i <= 16; i++)
{
if (!ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_algorithm_info->core_mode, i).valid)
......
......@@ -1091,6 +1091,10 @@ int xscale_debug_entry(target_t *target)
else
armv4_5->core_state = ARMV4_5_STATE_ARM;
if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
return ERROR_FAIL;
/* 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))
{
......
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