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Added checks for target->type->read/write_memory, soft_reset_halt and run_algorithm that the target has been examined. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@581 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-04-15 18:08:36 +00:00
parent 5aa93a5e8a
commit e18e23e1b6
2 changed files with 57 additions and 0 deletions
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53
src/target/target.c
View File

@ -489,6 +489,45 @@ int target_examine(struct command_context_s *cmd_ctx)
return retval; return retval;
} }
static int target_write_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
{
if (!target->type->examined)
{
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
return target->type->write_memory_imp(target, address, size, count, buffer);
}
static int target_read_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
{
if (!target->type->examined)
{
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
return target->type->read_memory_imp(target, address, size, count, buffer);
}
static int target_soft_reset_halt_imp(struct target_s *target)
{
if (!target->type->examined)
{
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
return target->type->soft_reset_halt_imp(target);
}
static int target_run_algorithm_imp(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info)
{
if (!target->type->examined)
{
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
return target->type->run_algorithm_imp(target, num_mem_params, mem_params, num_reg_params, reg_param, entry_point, exit_point, timeout_ms, arch_info);
}
int target_init(struct command_context_s *cmd_ctx) int target_init(struct command_context_s *cmd_ctx)
{ {
@ -513,6 +552,20 @@ int target_init(struct command_context_s *cmd_ctx)
{ {
target->type->virt2phys = default_virt2phys; target->type->virt2phys = default_virt2phys;
} }
target->type->virt2phys = default_virt2phys;
/* a non-invasive way(in terms of patches) to add some code that
* runs before the type->write/read_memory implementation
*/
target->type->write_memory_imp = target->type->write_memory;
target->type->write_memory = target_write_memory_imp;
target->type->read_memory_imp = target->type->read_memory;
target->type->read_memory = target_read_memory_imp;
target->type->soft_reset_halt_imp = target->type->soft_reset_halt;
target->type->soft_reset_halt = target_soft_reset_halt_imp;
target->type->run_algorithm_imp = target->type->run_algorithm;
target->type->run_algorithm = target_run_algorithm_imp;
if (target->type->mmu == NULL) if (target->type->mmu == NULL)
{ {
target->type->mmu = default_mmu; target->type->mmu = default_mmu;

4
src/target/target.h
View File

@ -132,6 +132,7 @@ typedef struct target_type_s
*/ */
int (*assert_reset)(struct target_s *target); int (*assert_reset)(struct target_s *target);
int (*deassert_reset)(struct target_s *target); int (*deassert_reset)(struct target_s *target);
int (*soft_reset_halt_imp)(struct target_s *target);
int (*soft_reset_halt)(struct target_s *target); int (*soft_reset_halt)(struct target_s *target);
/* target register access for gdb. /* target register access for gdb.
@ -149,7 +150,9 @@ typedef struct target_type_s
* size: 1 = byte (8bit), 2 = half-word (16bit), 4 = word (32bit) * size: 1 = byte (8bit), 2 = half-word (16bit), 4 = word (32bit)
* count: number of items of <size> * count: number of items of <size>
*/ */
int (*read_memory_imp)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
int (*read_memory)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer); int (*read_memory)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
int (*write_memory_imp)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
int (*write_memory)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer); int (*write_memory)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
/* write target memory in multiples of 4 byte, optimized for writing large quantities of data */ /* write target memory in multiples of 4 byte, optimized for writing large quantities of data */
@ -166,6 +169,7 @@ typedef struct target_type_s
int (*remove_watchpoint)(struct target_s *target, watchpoint_t *watchpoint); int (*remove_watchpoint)(struct target_s *target, watchpoint_t *watchpoint);
/* target algorithm support */ /* target algorithm support */
int (*run_algorithm_imp)(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info);
int (*run_algorithm)(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info); int (*run_algorithm)(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info);
int (*register_commands)(struct command_context_s *cmd_ctx); int (*register_commands)(struct command_context_s *cmd_ctx);