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- armv7m control register now set as dirty when switching context 

- armv7m added core_mode to cortex_m3_debug_entry DEBUG msg
- cortex_m3 changed WARNINGS to DEBUG msg in cortex_m3_resume

git-svn-id: svn://svn.berlios.de/openocd/trunk@519 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
ntfreak 2008-03-21 12:53:29 +00:00
parent 5a4525613d
commit 4622cb15a9
3 changed files with 15 additions and 23 deletions
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16
src/target/armv7m.c
View File

@ -169,7 +169,7 @@ int armv7m_use_context(target_t *target, enum armv7m_runcontext new_ctx)
} }
/* Mark registers in new context as dirty to force reload when run */ /* Mark registers in new context as dirty to force reload when run */
for (i = 0; i < armv7m->core_cache->num_regs-1; i++) /* EXCLUDE CONTROL TODOLATER : CHECK THIS */ for (i = 0; i < armv7m->core_cache->num_regs; i++)
{ {
armv7m->core_cache->reg_list[i].dirty = 1; armv7m->core_cache->reg_list[i].dirty = 1;
} }
@ -203,11 +203,11 @@ int armv7m_restore_context(target_t *target)
return ERROR_OK; return ERROR_OK;
} }
/* Core state functions */ /* Core state functions */
char enamebuf[32];
char *armv7m_exception_string(int number) char *armv7m_exception_string(int number)
{ {
static char enamebuf[32];
if ((number < 0) | (number > 511)) if ((number < 0) | (number > 511))
return "Invalid exception"; return "Invalid exception";
if (number < 16) if (number < 16)
@ -329,7 +329,6 @@ int armv7m_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list_
{ {
if (i < ARMV7NUMCOREREGS) if (i < ARMV7NUMCOREREGS)
(*reg_list)[i] = &armv7m->process_context->reg_list[i]; (*reg_list)[i] = &armv7m->process_context->reg_list[i];
/* (*reg_list)[i] = &armv7m->core_cache->reg_list[i]; */
else else
(*reg_list)[i] = &armv7m_gdb_dummy_fp_reg; (*reg_list)[i] = &armv7m_gdb_dummy_fp_reg;
} }
@ -344,15 +343,9 @@ int armv7m_run_algorithm(struct target_s *target, int num_mem_params, mem_param_
/* get pointers to arch-specific information */ /* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info; armv7m_common_t *armv7m = target->arch_info;
armv7m_algorithm_t *armv7m_algorithm_info = arch_info; armv7m_algorithm_t *armv7m_algorithm_info = arch_info;
enum armv7m_state core_state = armv7m->core_state;
enum armv7m_mode core_mode = armv7m->core_mode;
int retval = ERROR_OK; int retval = ERROR_OK;
u32 pc; u32 pc;
int exit_breakpoint_size = 0;
int i; int i;
armv7m->core_state = core_state;
armv7m->core_mode = core_mode;
if (armv7m_algorithm_info->common_magic != ARMV7M_COMMON_MAGIC) if (armv7m_algorithm_info->common_magic != ARMV7M_COMMON_MAGIC)
{ {
@ -397,8 +390,7 @@ int armv7m_run_algorithm(struct target_s *target, int num_mem_params, mem_param_
} }
/* ARMV7M always runs in Thumb state */ /* ARMV7M always runs in Thumb state */
exit_breakpoint_size = 2; if ((retval = breakpoint_add(target, exit_point, 2, BKPT_SOFT)) != ERROR_OK)
if ((retval = breakpoint_add(target, exit_point, exit_breakpoint_size, BKPT_SOFT)) != ERROR_OK)
{ {
ERROR("can't add breakpoint to finish algorithm execution"); ERROR("can't add breakpoint to finish algorithm execution");
return ERROR_TARGET_FAILURE; return ERROR_TARGET_FAILURE;

20
src/target/cortex_m3.c
View File

@ -188,13 +188,13 @@ int cortex_m3_endreset_event(target_t *target)
target_write_u32(target, FP_CTRL, 3); target_write_u32(target, FP_CTRL, 3);
/* Restore FPB registers */ /* Restore FPB registers */
for ( i = 0; i < cortex_m3->fp_num_code + cortex_m3->fp_num_lit; i++) for (i = 0; i < cortex_m3->fp_num_code + cortex_m3->fp_num_lit; i++)
{ {
target_write_u32(target, fp_list[i].fpcr_address, fp_list[i].fpcr_value); target_write_u32(target, fp_list[i].fpcr_address, fp_list[i].fpcr_value);
} }
/* Restore DWT registers */ /* Restore DWT registers */
for ( i = 0; i < cortex_m3->dwt_num_comp; i++) for (i = 0; i < cortex_m3->dwt_num_comp; i++)
{ {
target_write_u32(target, dwt_list[i].dwt_comparator_address, dwt_list[i].comp); target_write_u32(target, dwt_list[i].dwt_comparator_address, dwt_list[i].comp);
target_write_u32(target, dwt_list[i].dwt_comparator_address | 0x4, dwt_list[i].mask); target_write_u32(target, dwt_list[i].dwt_comparator_address | 0x4, dwt_list[i].mask);
@ -311,16 +311,16 @@ int cortex_m3_debug_entry(target_t *target)
return retval; return retval;
/* Examine target state and mode */ /* Examine target state and mode */
/* First load register acessible through core debug port*/ /* First load register acessible through core debug port*/
for (i = 0; i < ARMV7M_PRIMASK; i++) for (i = 0; i < ARMV7M_PRIMASK; i++)
{ {
if (!armv7m->core_cache->reg_list[i].valid) if (!armv7m->core_cache->reg_list[i].valid)
armv7m->read_core_reg(target, i); armv7m->read_core_reg(target, i);
} }
xPSR = buf_get_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32); xPSR = buf_get_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32);
/* For IT instructions xPSR must be reloaded on resume and clear on debug exec*/ /* For IT instructions xPSR must be reloaded on resume and clear on debug exec */
if (xPSR & 0xf00) if (xPSR & 0xf00)
{ {
armv7m->core_cache->reg_list[ARMV7M_xPSR].dirty = armv7m->core_cache->reg_list[ARMV7M_xPSR].valid; armv7m->core_cache->reg_list[ARMV7M_xPSR].dirty = armv7m->core_cache->reg_list[ARMV7M_xPSR].valid;
@ -342,7 +342,8 @@ int cortex_m3_debug_entry(target_t *target)
cortex_m3_examine_exception_reason(target); cortex_m3_examine_exception_reason(target);
} }
DEBUG("entered debug state at PC 0x%x, target->state: %s ", *(u32*)(armv7m->core_cache->reg_list[15].value), target_state_strings[target->state]); DEBUG("entered debug state in core mode: %s at PC 0x%x, target->state: %s", armv7m_mode_strings[armv7m->core_mode], \
*(u32*)(armv7m->core_cache->reg_list[15].value), target_state_strings[target->state]);
if (armv7m->post_debug_entry) if (armv7m->post_debug_entry)
armv7m->post_debug_entry(target); armv7m->post_debug_entry(target);
@ -557,7 +558,7 @@ int cortex_m3_resume(struct target_s *target, int current, u32 address, int hand
/* Check that we are using process_context, or change and print warning */ /* Check that we are using process_context, or change and print warning */
if (armv7m_get_context(target) != ARMV7M_PROCESS_CONTEXT) if (armv7m_get_context(target) != ARMV7M_PROCESS_CONTEXT)
{ {
WARNING("Incorrect context in resume"); DEBUG("Incorrect context in resume");
armv7m_use_context(target, ARMV7M_PROCESS_CONTEXT); armv7m_use_context(target, ARMV7M_PROCESS_CONTEXT);
} }
@ -565,7 +566,7 @@ int cortex_m3_resume(struct target_s *target, int current, u32 address, int hand
cortex_m3_enable_breakpoints(target); cortex_m3_enable_breakpoints(target);
cortex_m3_enable_watchpoints(target); cortex_m3_enable_watchpoints(target);
/* TODOLATER Interrupt handling/disable for debug execution, cache ... ... */ /* TODOLATER Interrupt handling/disable for debug execution, cache ... ... */
} }
dcb_dhcsr = DBGKEY | C_DEBUGEN; dcb_dhcsr = DBGKEY | C_DEBUGEN;
@ -574,7 +575,7 @@ int cortex_m3_resume(struct target_s *target, int current, u32 address, int hand
/* Check that we are using debug_context, or change and print warning */ /* Check that we are using debug_context, or change and print warning */
if (armv7m_get_context(target) != ARMV7M_DEBUG_CONTEXT) if (armv7m_get_context(target) != ARMV7M_DEBUG_CONTEXT)
{ {
WARNING("Incorrect context in debug_exec resume"); DEBUG("Incorrect context in debug_exec resume");
armv7m_use_context(target, ARMV7M_DEBUG_CONTEXT); armv7m_use_context(target, ARMV7M_DEBUG_CONTEXT);
} }
/* Disable interrupts */ /* Disable interrupts */
@ -1450,7 +1451,6 @@ int cortex_m3_init_arch_info(target_t *target, cortex_m3_common_t *cortex_m3, in
armv7m->arch_info = cortex_m3; armv7m->arch_info = cortex_m3;
armv7m->load_core_reg_u32 = cortex_m3_load_core_reg_u32; armv7m->load_core_reg_u32 = cortex_m3_load_core_reg_u32;
armv7m->store_core_reg_u32 = cortex_m3_store_core_reg_u32; armv7m->store_core_reg_u32 = cortex_m3_store_core_reg_u32;
/* armv7m->full_context = cortex_m3_full_context; */
target_register_timer_callback(cortex_m3_handle_target_request, 1, 1, target); target_register_timer_callback(cortex_m3_handle_target_request, 1, 1, target);

2
src/target/target.c
View File

@ -1500,7 +1500,7 @@ int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **arg
if (argc == 0) if (argc == 0)
{ {
target->type->poll(target); target->type->poll(target);
target_arch_state(target); target_arch_state(target);
} }
else else
{ {