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more error handling 

git-svn-id: svn://svn.berlios.de/openocd/trunk@1543 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-04-27 12:02:07 +00:00
parent 4866c8ed25
commit bd7d019b56
3 changed files with 65 additions and 30 deletions
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12
src/target/arm11.c
View File

@ -932,7 +932,8 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
u32 next_instruction; u32 next_instruction;
arm11_read_memory_word(arm11, R(PC), &next_instruction); if ((arm11_read_memory_word(arm11, R(PC), &next_instruction))!=ERROR_OK)
return retval;
/* skip over BKPT */ /* skip over BKPT */
if ((next_instruction & 0xFFF00070) == 0xe1200070) if ((next_instruction & 0xFFF00070) == 0xe1200070)
@ -976,7 +977,8 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
brp[1].address = ARM11_SC7_BCR0; brp[1].address = ARM11_SC7_BCR0;
brp[1].value = 0x1 | (3 << 1) | (0x0F << 5) | (0 << 14) | (0 << 16) | (0 << 20) | (2 << 21); brp[1].value = 0x1 | (3 << 1) | (0x0F << 5) | (0 << 14) | (0 << 16) | (0 << 20) | (2 << 21);
arm11_sc7_run(arm11, brp, asizeof(brp)); if ((retval=arm11_sc7_run(arm11, brp, asizeof(brp)))!=ERROR_OK)
return retval;
/* resume */ /* resume */
@ -987,7 +989,8 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
R(DSCR) |= ARM11_DSCR_INTERRUPTS_DISABLE; R(DSCR) |= ARM11_DSCR_INTERRUPTS_DISABLE;
arm11_leave_debug_state(arm11); if ((retval=arm11_leave_debug_state(arm11))!=ERROR_OK)
return retval;
arm11_add_IR(arm11, ARM11_RESTART, TAP_IDLE); arm11_add_IR(arm11, ARM11_RESTART, TAP_IDLE);
@ -1018,7 +1021,8 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
arm11_sc7_clear_vbw(arm11); arm11_sc7_clear_vbw(arm11);
/* save state */ /* save state */
arm11_on_enter_debug_state(arm11); if((retval = arm11_on_enter_debug_state(arm11))!=ERROR_OK)
return retval;
/* restore default state */ /* restore default state */
R(DSCR) &= ~ARM11_DSCR_INTERRUPTS_DISABLE; R(DSCR) &= ~ARM11_DSCR_INTERRUPTS_DISABLE;

16
src/target/arm11.h
View File

@ -240,18 +240,18 @@ void arm11_add_IR (arm11_common_t * arm11, u8 instr, tap_state_t state);
void arm11_add_debug_SCAN_N (arm11_common_t * arm11, u8 chain, tap_state_t state); void arm11_add_debug_SCAN_N (arm11_common_t * arm11, u8 chain, tap_state_t state);
void arm11_add_debug_INST (arm11_common_t * arm11, u32 inst, u8 * flag, tap_state_t state); void arm11_add_debug_INST (arm11_common_t * arm11, u32 inst, u8 * flag, tap_state_t state);
int arm11_read_DSCR (arm11_common_t * arm11, u32 *dscr); int arm11_read_DSCR (arm11_common_t * arm11, u32 *dscr);
void arm11_write_DSCR (arm11_common_t * arm11, u32 dscr); int arm11_write_DSCR (arm11_common_t * arm11, u32 dscr);
enum target_debug_reason arm11_get_DSCR_debug_reason(u32 dscr); enum target_debug_reason arm11_get_DSCR_debug_reason(u32 dscr);
void arm11_run_instr_data_prepare (arm11_common_t * arm11); void arm11_run_instr_data_prepare (arm11_common_t * arm11);
void arm11_run_instr_data_finish (arm11_common_t * arm11); void arm11_run_instr_data_finish (arm11_common_t * arm11);
void arm11_run_instr_no_data (arm11_common_t * arm11, u32 * opcode, size_t count); int arm11_run_instr_no_data (arm11_common_t * arm11, u32 * opcode, size_t count);
void arm11_run_instr_no_data1 (arm11_common_t * arm11, u32 opcode); void arm11_run_instr_no_data1 (arm11_common_t * arm11, u32 opcode);
void arm11_run_instr_data_to_core (arm11_common_t * arm11, u32 opcode, u32 * data, size_t count); int arm11_run_instr_data_to_core (arm11_common_t * arm11, u32 opcode, u32 * data, size_t count);
void arm11_run_instr_data_to_core_noack (arm11_common_t * arm11, u32 opcode, u32 * data, size_t count); int arm11_run_instr_data_to_core_noack (arm11_common_t * arm11, u32 opcode, u32 * data, size_t count);
void arm11_run_instr_data_to_core1 (arm11_common_t * arm11, u32 opcode, u32 data); int arm11_run_instr_data_to_core1 (arm11_common_t * arm11, u32 opcode, u32 data);
void arm11_run_instr_data_from_core (arm11_common_t * arm11, u32 opcode, u32 * data, size_t count); int arm11_run_instr_data_from_core (arm11_common_t * arm11, u32 opcode, u32 * data, size_t count);
void arm11_run_instr_data_from_core_via_r0 (arm11_common_t * arm11, u32 opcode, u32 * data); void arm11_run_instr_data_from_core_via_r0 (arm11_common_t * arm11, u32 opcode, u32 * data);
void arm11_run_instr_data_to_core_via_r0 (arm11_common_t * arm11, u32 opcode, u32 data); void arm11_run_instr_data_to_core_via_r0 (arm11_common_t * arm11, u32 opcode, u32 data);
@ -271,12 +271,12 @@ typedef struct arm11_sc7_action_s
function returns. */ function returns. */
} arm11_sc7_action_t; } arm11_sc7_action_t;
void arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t count); int arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t count);
/* Mid-level helper functions */ /* Mid-level helper functions */
void arm11_sc7_clear_vbw(arm11_common_t * arm11); void arm11_sc7_clear_vbw(arm11_common_t * arm11);
void arm11_sc7_set_vcr(arm11_common_t * arm11, u32 value); void arm11_sc7_set_vcr(arm11_common_t * arm11, u32 value);
void arm11_read_memory_word(arm11_common_t * arm11, u32 address, u32 * result); int arm11_read_memory_word(arm11_common_t * arm11, u32 address, u32 * result);
#endif /* ARM11_H */ #endif /* ARM11_H */

67
src/target/arm11_dbgtap.c
View File

@ -254,7 +254,7 @@ int arm11_read_DSCR(arm11_common_t * arm11, u32 *value)
* *
* \remarks This is a stand-alone function that executes the JTAG command queue. * \remarks This is a stand-alone function that executes the JTAG command queue.
*/ */
void arm11_write_DSCR(arm11_common_t * arm11, u32 dscr) int arm11_write_DSCR(arm11_common_t * arm11, u32 dscr)
{ {
arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT); arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT);
@ -266,11 +266,15 @@ void arm11_write_DSCR(arm11_common_t * arm11, u32 dscr)
arm11_add_dr_scan_vc(1, &chain1_field, TAP_DRPAUSE); arm11_add_dr_scan_vc(1, &chain1_field, TAP_DRPAUSE);
jtag_execute_queue(); int retval;
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
JTAG_DEBUG("DSCR <= %08x (OLD %08x)", dscr, arm11->last_dscr); JTAG_DEBUG("DSCR <= %08x (OLD %08x)", dscr, arm11->last_dscr);
arm11->last_dscr = dscr; arm11->last_dscr = dscr;
return ERROR_OK;
} }
@ -365,7 +369,7 @@ void arm11_run_instr_data_finish(arm11_common_t * arm11)
* \param count Number of opcodes to execute * \param count Number of opcodes to execute
* *
*/ */
void arm11_run_instr_no_data(arm11_common_t * arm11, u32 * opcode, size_t count) int arm11_run_instr_no_data(arm11_common_t * arm11, u32 * opcode, size_t count)
{ {
arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT); arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT);
@ -379,12 +383,16 @@ void arm11_run_instr_no_data(arm11_common_t * arm11, u32 * opcode, size_t count)
arm11_add_debug_INST(arm11, 0, &flag, count ? TAP_IDLE : TAP_DRPAUSE); arm11_add_debug_INST(arm11, 0, &flag, count ? TAP_IDLE : TAP_DRPAUSE);
jtag_execute_queue(); int retval;
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
if (flag) if (flag)
break; break;
} }
} }
return ERROR_OK;
} }
/** Execute one instruction via ITR /** Execute one instruction via ITR
@ -414,7 +422,7 @@ void arm11_run_instr_no_data1(arm11_common_t * arm11, u32 opcode)
* \param count Number of data words and instruction repetitions * \param count Number of data words and instruction repetitions
* *
*/ */
void arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count) int arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count)
{ {
arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT); arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT);
@ -439,7 +447,9 @@ void arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data
Data = *data; Data = *data;
arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_IDLE); arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_IDLE);
jtag_execute_queue(); int retval;
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
JTAG_DEBUG("DTR Ready %d nRetry %d", Ready, nRetry); JTAG_DEBUG("DTR Ready %d nRetry %d", Ready, nRetry);
} }
@ -455,11 +465,15 @@ void arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data
Data = 0; Data = 0;
arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE); arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE);
jtag_execute_queue(); int retval;
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
JTAG_DEBUG("DTR Data %08x Ready %d nRetry %d", Data, Ready, nRetry); JTAG_DEBUG("DTR Data %08x Ready %d nRetry %d", Data, Ready, nRetry);
} }
while (!Ready); while (!Ready);
return ERROR_OK;
} }
/** JTAG path for arm11_run_instr_data_to_core_noack /** JTAG path for arm11_run_instr_data_to_core_noack
@ -495,7 +509,7 @@ tap_state_t arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay[] =
* \param count Number of data words and instruction repetitions * \param count Number of data words and instruction repetitions
* *
*/ */
void arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count) int arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count)
{ {
arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT); arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT);
@ -536,7 +550,9 @@ void arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32
arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE); arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE);
jtag_execute_queue(); int retval;
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
size_t error_count = 0; size_t error_count = 0;
@ -551,6 +567,8 @@ void arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32
if (error_count) if (error_count)
LOG_ERROR("Transfer errors " ZU, error_count); LOG_ERROR("Transfer errors " ZU, error_count);
return ERROR_OK;
} }
@ -565,9 +583,9 @@ void arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32
* \param data Data word to be passed to the core via DTR * \param data Data word to be passed to the core via DTR
* *
*/ */
void arm11_run_instr_data_to_core1(arm11_common_t * arm11, u32 opcode, u32 data) int arm11_run_instr_data_to_core1(arm11_common_t * arm11, u32 opcode, u32 data)
{ {
arm11_run_instr_data_to_core(arm11, opcode, &data, 1); return arm11_run_instr_data_to_core(arm11, opcode, &data, 1);
} }
@ -584,7 +602,7 @@ void arm11_run_instr_data_to_core1(arm11_common_t * arm11, u32 opcode, u32 data)
* \param count Number of data words and instruction repetitions * \param count Number of data words and instruction repetitions
* *
*/ */
void arm11_run_instr_data_from_core(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count) int arm11_run_instr_data_from_core(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count)
{ {
arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT); arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT);
@ -607,7 +625,9 @@ void arm11_run_instr_data_from_core(arm11_common_t * arm11, u32 opcode, u32 * da
do do
{ {
arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, count ? TAP_IDLE : TAP_DRPAUSE); arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, count ? TAP_IDLE : TAP_DRPAUSE);
jtag_execute_queue(); int retval;
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
JTAG_DEBUG("DTR Data %08x Ready %d nRetry %d", Data, Ready, nRetry); JTAG_DEBUG("DTR Data %08x Ready %d nRetry %d", Data, Ready, nRetry);
} }
@ -615,6 +635,8 @@ void arm11_run_instr_data_from_core(arm11_common_t * arm11, u32 opcode, u32 * da
*data++ = Data; *data++ = Data;
} }
return ERROR_OK;
} }
/** Execute one instruction via ITR /** Execute one instruction via ITR
@ -666,7 +688,7 @@ void arm11_run_instr_data_to_core_via_r0(arm11_common_t * arm11, u32 opcode, u32
* \param count Number of instructions in the list. * \param count Number of instructions in the list.
* *
*/ */
void arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t count) int arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t count)
{ {
arm11_add_debug_SCAN_N(arm11, 0x07, ARM11_TAP_DEFAULT); arm11_add_debug_SCAN_N(arm11, 0x07, ARM11_TAP_DEFAULT);
@ -706,7 +728,9 @@ void arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t
JTAG_DEBUG("SC7 <= Address %02x Data %08x nRW %d", AddressOut, DataOut, nRW); JTAG_DEBUG("SC7 <= Address %02x Data %08x nRW %d", AddressOut, DataOut, nRW);
arm11_add_dr_scan_vc(asizeof(chain7_fields), chain7_fields, TAP_DRPAUSE); arm11_add_dr_scan_vc(asizeof(chain7_fields), chain7_fields, TAP_DRPAUSE);
jtag_execute_queue(); int retval;
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
JTAG_DEBUG("SC7 => Address %02x Data %08x Ready %d", AddressIn, DataIn, Ready); JTAG_DEBUG("SC7 => Address %02x Data %08x Ready %d", AddressIn, DataIn, Ready);
} }
@ -738,6 +762,8 @@ void arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t
{ {
JTAG_DEBUG("SC7 %02d: %02x %s %08x", i, actions[i].address, actions[i].write ? "<=" : "=>", actions[i].value); JTAG_DEBUG("SC7 %02d: %02x %s %08x", i, actions[i].address, actions[i].write ? "<=" : "=>", actions[i].value);
}} }}
return ERROR_OK;
} }
/** Clear VCR and all breakpoints and watchpoints via scan chain 7 /** Clear VCR and all breakpoints and watchpoints via scan chain 7
@ -798,17 +824,22 @@ void arm11_sc7_set_vcr(arm11_common_t * arm11, u32 value)
* \param result Pointer where to store result * \param result Pointer where to store result
* *
*/ */
void arm11_read_memory_word(arm11_common_t * arm11, u32 address, u32 * result) int arm11_read_memory_word(arm11_common_t * arm11, u32 address, u32 * result)
{ {
int retval;
arm11_run_instr_data_prepare(arm11); arm11_run_instr_data_prepare(arm11);
/* MRC p14,0,r0,c0,c5,0 (r0 = address) */ /* MRC p14,0,r0,c0,c5,0 (r0 = address) */
arm11_run_instr_data_to_core1(arm11, 0xee100e15, address); if ((retval=arm11_run_instr_data_to_core1(arm11, 0xee100e15, address))!=ERROR_OK)
return retval;
/* LDC p14,c5,[R0],#4 (DTR = [r0]) */ /* LDC p14,c5,[R0],#4 (DTR = [r0]) */
arm11_run_instr_data_from_core(arm11, 0xecb05e01, result, 1); if ((retval=arm11_run_instr_data_from_core(arm11, 0xecb05e01, result, 1))!=ERROR_OK)
return retval;
arm11_run_instr_data_finish(arm11); arm11_run_instr_data_finish(arm11);
return ERROR_OK;
} }