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gdb_server: add debug signal reason prints 

Added debug prints to show what is the target debug reason. Also added
debug print for Ctrl-C response. This is useful for troubleshooting and
log analysis.

Change-Id: I055936257d989efe7255656198a8d73a367fcd15
Signed-off-by: Marek Vrbka <marek.vrbka@codasip.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7720
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
This commit is contained in:
Marek Vrbka 2023-05-29 14:41:34 +02:00 committed by Antonio Borneo
parent 370bf43fb1
commit 0854c83076
3 changed files with 35 additions and 2 deletions
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9
src/server/gdb_server.c
View File

@ -145,6 +145,9 @@ static char gdb_running_type;
static int gdb_last_signal(struct target *target) static int gdb_last_signal(struct target *target)
{ {
LOG_TARGET_DEBUG(target, "Debug reason is: %s",
target_debug_reason_str(target->debug_reason));
switch (target->debug_reason) { switch (target->debug_reason) {
case DBG_REASON_DBGRQ: case DBG_REASON_DBGRQ:
return 0x2; /* SIGINT */ return 0x2; /* SIGINT */
@ -159,8 +162,9 @@ static int gdb_last_signal(struct target *target)
case DBG_REASON_NOTHALTED: case DBG_REASON_NOTHALTED:
return 0x0; /* no signal... shouldn't happen */ return 0x0; /* no signal... shouldn't happen */
default: default:
LOG_USER("undefined debug reason %d - target needs reset", LOG_USER("undefined debug reason %d (%s) - target needs reset",
target->debug_reason); target->debug_reason,
target_debug_reason_str(target->debug_reason));
return 0x0; return 0x0;
} }
} }
@ -798,6 +802,7 @@ static void gdb_signal_reply(struct target *target, struct connection *connectio
} }
if (gdb_connection->ctrl_c) { if (gdb_connection->ctrl_c) {
LOG_TARGET_DEBUG(target, "Responding with signal 2 (SIGINT) to debugger due to Ctrl-C");
signal_var = 0x2; signal_var = 0x2;
} else } else
signal_var = gdb_last_signal(ct); signal_var = gdb_last_signal(ct);

26
src/target/target.c
View File

@ -7147,3 +7147,29 @@ static int target_register_user_commands(struct command_context *cmd_ctx)
return register_commands(cmd_ctx, NULL, target_exec_command_handlers); return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
} }
const char *target_debug_reason_str(enum target_debug_reason reason)
{
switch (reason) {
case DBG_REASON_DBGRQ:
return "DBGRQ";
case DBG_REASON_BREAKPOINT:
return "BREAKPOINT";
case DBG_REASON_WATCHPOINT:
return "WATCHPOINT";
case DBG_REASON_WPTANDBKPT:
return "WPTANDBKPT";
case DBG_REASON_SINGLESTEP:
return "SINGLESTEP";
case DBG_REASON_NOTHALTED:
return "NOTHALTED";
case DBG_REASON_EXIT:
return "EXIT";
case DBG_REASON_EXC_CATCH:
return "EXC_CATCH";
case DBG_REASON_UNDEFINED:
return "UNDEFINED";
default:
return "UNKNOWN!";
}
}

2
src/target/target.h
View File

@ -803,4 +803,6 @@ extern bool get_target_reset_nag(void);
#define TARGET_DEFAULT_POLLING_INTERVAL 100 #define TARGET_DEFAULT_POLLING_INTERVAL 100
const char *target_debug_reason_str(enum target_debug_reason reason);
#endif /* OPENOCD_TARGET_TARGET_H */ #endif /* OPENOCD_TARGET_TARGET_H */