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-rw-r--r--src/server/gdb_server.c11
-rw-r--r--src/target/arm11.c7
-rw-r--r--src/target/arm720t.c5
-rw-r--r--src/target/arm7_9_common.c24
-rw-r--r--src/target/arm920t.c5
-rw-r--r--src/target/arm926ejs.c5
-rw-r--r--src/target/armv4_5.c1
-rw-r--r--src/target/armv7m.c1
-rw-r--r--src/target/cortex_m3.c2
-rw-r--r--src/target/target.c18
-rw-r--r--src/target/target.h3
-rw-r--r--src/target/xscale.c2
12 files changed, 41 insertions, 43 deletions
diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c
index 1fac4697..f01d638f 100644
--- a/src/server/gdb_server.c
+++ b/src/server/gdb_server.c
@@ -684,13 +684,19 @@ int gdb_new_connection(connection_t *connection)
* GDB connection will fail if e.g. register read packets fail,
* otherwise resetting/halting the target could have been left to GDB init
* scripts
+ *
+ * DANGER!!!!
+ * We need a synchronous halt, lest connect will fail.
+ * Also there is no guarantee that poll() will be invoked
+ * between here and serving the first packet, so the halt()
+ * statement above is *NOT* sufficient
*/
- if (((retval = gdb_service->target->type->halt(gdb_service->target)) != ERROR_OK) &&
- (retval != ERROR_TARGET_ALREADY_HALTED))
+ if ((retval = gdb_service->target->type->halt(gdb_service->target)) != ERROR_OK)
{
ERROR("error(%d) when trying to halt target, falling back to \"reset\"", retval);
command_run_line(connection->cmd_ctx, "reset");
}
+ command_run_line(connection->cmd_ctx, "halt");
/* remove the initial ACK from the incoming buffer */
if ((retval = gdb_get_char(connection, &initial_ack)) != ERROR_OK)
@@ -1462,6 +1468,7 @@ int gdb_query_packet(connection_t *connection, target_t *target, char *packet, i
log_add_callback(gdb_log_callback, connection);
target_call_timer_callbacks();
command_run_line(cmd_ctx, cmd);
+ target_call_timer_callbacks();
log_remove_callback(gdb_log_callback, connection);
free(cmd);
}
diff --git a/src/target/arm11.c b/src/target/arm11.c
index 9c3d1f28..80189ffa 100644
--- a/src/target/arm11.c
+++ b/src/target/arm11.c
@@ -735,8 +735,8 @@ int arm11_halt(struct target_s *target)
if (target->state == TARGET_HALTED)
{
- WARNING("target was already halted");
- return ERROR_TARGET_ALREADY_HALTED;
+ WARNING("target was already halted");
+ return ERROR_OK;
}
if (arm11->trst_active)
@@ -1044,7 +1044,8 @@ int arm11_get_gdb_reg_list(struct target_s *target, struct reg_s **reg_list[], i
if (target->state != TARGET_HALTED)
{
- return ERROR_TARGET_NOT_HALTED;
+ ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
}
*reg_list_size = ARM11_GDB_REGISTER_COUNT;
diff --git a/src/target/arm720t.c b/src/target/arm720t.c
index 9a3f5617..962ad1bd 100644
--- a/src/target/arm720t.c
+++ b/src/target/arm720t.c
@@ -367,10 +367,7 @@ int arm720t_soft_reset_halt(struct target_s *target)
arm720t_common_t *arm720t = arm7tdmi->arch_info;
reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
- if (target->state == TARGET_RUNNING)
- {
- target->type->halt(target);
- }
+ target->type->halt(target);
while (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
{
diff --git a/src/target/arm7_9_common.c b/src/target/arm7_9_common.c
index e31b0151..a7d756a3 100644
--- a/src/target/arm7_9_common.c
+++ b/src/target/arm7_9_common.c
@@ -860,16 +860,26 @@ int arm7_9_soft_reset_halt(struct target_s *target)
reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
reg_t *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL];
int i;
+ int retval;
- if (target->state == TARGET_RUNNING)
- {
- target->type->halt(target);
- }
+ if ((retval=target->type->halt(target))!=ERROR_OK)
+ return retval;
- while (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
+ for (i=0; i<10; i++)
{
+ if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) != 0)
+ break;
embeddedice_read_reg(dbg_stat);
- jtag_execute_queue();
+ if ((retval=jtag_execute_queue())!=ERROR_OK)
+ return retval;
+ /* do not eat all CPU, time out after 1 se*/
+ usleep(100*1000);
+
+ }
+ if (i==10)
+ {
+ ERROR("Failed to halt CPU after 1 sec");
+ return ERROR_TARGET_TIMEOUT;
}
target->state = TARGET_HALTED;
@@ -962,7 +972,7 @@ int arm7_9_halt(target_t *target)
if (target->state == TARGET_HALTED)
{
WARNING("target was already halted");
- return ERROR_TARGET_ALREADY_HALTED;
+ return ERROR_OK;
}
if (target->state == TARGET_UNKNOWN)
diff --git a/src/target/arm920t.c b/src/target/arm920t.c
index 43d48152..c1521993 100644
--- a/src/target/arm920t.c
+++ b/src/target/arm920t.c
@@ -623,10 +623,7 @@ int arm920t_soft_reset_halt(struct target_s *target)
arm920t_common_t *arm920t = arm9tdmi->arch_info;
reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
- if (target->state == TARGET_RUNNING)
- {
- target->type->halt(target);
- }
+ target->type->halt(target);
while (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
{
diff --git a/src/target/arm926ejs.c b/src/target/arm926ejs.c
index ff73e1a1..1b3a17b0 100644
--- a/src/target/arm926ejs.c
+++ b/src/target/arm926ejs.c
@@ -578,10 +578,7 @@ int arm926ejs_soft_reset_halt(struct target_s *target)
arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
- if (target->state == TARGET_RUNNING)
- {
- target->type->halt(target);
- }
+ target->type->halt(target);
while (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
{
diff --git a/src/target/armv4_5.c b/src/target/armv4_5.c
index 3bd50cd6..82e65c78 100644
--- a/src/target/armv4_5.c
+++ b/src/target/armv4_5.c
@@ -476,6 +476,7 @@ int armv4_5_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list
if (target->state != TARGET_HALTED)
{
+ ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
diff --git a/src/target/armv7m.c b/src/target/armv7m.c
index 6a8119a0..6ee5903a 100644
--- a/src/target/armv7m.c
+++ b/src/target/armv7m.c
@@ -323,6 +323,7 @@ int armv7m_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list_
if (target->state != TARGET_HALTED)
{
+ ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c
index 964c6b8c..51ec52e0 100644
--- a/src/target/cortex_m3.c
+++ b/src/target/cortex_m3.c
@@ -432,7 +432,7 @@ int cortex_m3_halt(target_t *target)
if (target->state == TARGET_HALTED)
{
WARNING("target was already halted");
- return ERROR_TARGET_ALREADY_HALTED;
+ return ERROR_OK;
}
if (target->state == TARGET_UNKNOWN)
diff --git a/src/target/target.c b/src/target/target.c
index baf57565..dc69e994 100644
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -359,7 +359,7 @@ int target_process_reset(struct command_context_s *cmd_ctx)
{
if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
{
- command_print(cmd_ctx, "Timed out waiting for reset");
+ USER("Timed out waiting for reset");
goto done;
}
/* this will send alive messages on e.g. GDB remote protocol. */
@@ -1614,22 +1614,10 @@ int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd,
int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target = get_current_target(cmd_ctx);
- int retval;
- command_print(cmd_ctx, "requesting target halt and executing a soft reset");
+ USER("requesting target halt and executing a soft reset");
- if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
- {
- switch (retval)
- {
- case ERROR_TARGET_TIMEOUT:
- command_print(cmd_ctx, "target timed out... shutting down");
- exit(-1);
- default:
- command_print(cmd_ctx, "unknown error... shutting down");
- exit(-1);
- }
- }
+ target->type->soft_reset_halt(target);
return ERROR_OK;
}
diff --git a/src/target/target.h b/src/target/target.h
index dae5f19e..8d70e77e 100644
--- a/src/target/target.h
+++ b/src/target/target.h
@@ -116,7 +116,7 @@ typedef struct target_type_s
/* target request support */
int (*target_request_data)(struct target_s *target, u32 size, u8 *buffer);
- /* target execution control */
+ /* halt will log a warning, but return ERROR_OK if the target is already halted. */
int (*halt)(struct target_s *target);
int (*resume)(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution);
int (*step)(struct target_s *target, int current, u32 address, int handle_breakpoints);
@@ -270,7 +270,6 @@ int target_arch_state(struct target_s *target);
#define ERROR_TARGET_INVALID (-300)
#define ERROR_TARGET_INIT_FAILED (-301)
#define ERROR_TARGET_TIMEOUT (-302)
-#define ERROR_TARGET_ALREADY_HALTED (-303)
#define ERROR_TARGET_NOT_HALTED (-304)
#define ERROR_TARGET_FAILURE (-305)
#define ERROR_TARGET_UNALIGNED_ACCESS (-306)
diff --git a/src/target/xscale.c b/src/target/xscale.c
index 4e62c8a1..7e362ff5 100644
--- a/src/target/xscale.c
+++ b/src/target/xscale.c
@@ -1274,7 +1274,7 @@ int xscale_halt(target_t *target)
if (target->state == TARGET_HALTED)
{
WARNING("target was already halted");
- return ERROR_TARGET_ALREADY_HALTED;
+ return ERROR_OK;
}
else if (target->state == TARGET_UNKNOWN)
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-16 06:53:13 +0000