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WIP on hardware breakpoints.

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This is messy, but contains at least some bugfixes.

39/43 tests pass now.

Change-Id: Ic9e8dad2a0ceb237e28c93906d1cd60876a5766d
This commit is contained in:
Tim Newsome
2019-01-24 15:15:18 -08:00
parent c296c62521
commit afedcb337a
8 changed files with 207 additions and 61 deletions
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src/server/gdb_server.c
+19 -11
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@@ -144,6 +144,7 @@ static char gdb_running_type;
static int gdb_last_signal(struct target *target)
{
LOG_DEBUG(">>> [%d] debug_reason=%d", target->coreid, target->debug_reason);
switch (target->debug_reason) {
case DBG_REASON_DBGRQ:
return 0x2; /* SIGINT */
@@ -733,17 +734,28 @@ static void gdb_signal_reply(struct target *target, struct connection *connectio
if (target->debug_reason == DBG_REASON_EXIT) {
sig_reply_len = snprintf(sig_reply, sizeof(sig_reply), "W00");
} else {
struct target *ct;
if (target->rtos != NULL) {
target->rtos->current_threadid = target->rtos->current_thread;
LOG_DEBUG("current_threadid=%ld", target->rtos->current_threadid);
target->rtos->gdb_target_for_threadid(connection, target->rtos->current_threadid, &ct);
} else {
ct = target;
}
if (gdb_connection->ctrl_c) {
signal_var = 0x2;
} else
signal_var = gdb_last_signal(target);
signal_var = gdb_last_signal(ct);
LOG_DEBUG(">>> ctrl_c=%d, signal_var=%d", gdb_connection->ctrl_c,
signal_var);
stop_reason[0] = '\0';
if (target->debug_reason == DBG_REASON_WATCHPOINT) {
if (ct->debug_reason == DBG_REASON_WATCHPOINT) {
enum watchpoint_rw hit_wp_type;
target_addr_t hit_wp_address;
if (watchpoint_hit(target, &hit_wp_type, &hit_wp_address) == ERROR_OK) {
if (watchpoint_hit(ct, &hit_wp_type, &hit_wp_address) == ERROR_OK) {
switch (hit_wp_type) {
case WPT_WRITE:
@@ -765,15 +777,10 @@ static void gdb_signal_reply(struct target *target, struct connection *connectio
}
current_thread[0] = '\0';
if (target->rtos != NULL) {
struct target *ct;
if (target->rtos != NULL)
snprintf(current_thread, sizeof(current_thread), "thread:%" PRIx64 ";",
target->rtos->current_thread);
target->rtos->current_threadid = target->rtos->current_thread;
target->rtos->gdb_target_for_threadid(connection, target->rtos->current_threadid, &ct);
if (!gdb_connection->ctrl_c)
signal_var = gdb_last_signal(ct);
}
LOG_DEBUG(">>> signal_var=%d", signal_var);
sig_reply_len = snprintf(sig_reply, sizeof(sig_reply), "T%2.2x%s%s",
signal_var, stop_reason, current_thread);
@@ -1652,7 +1659,7 @@ static int gdb_breakpoint_watchpoint_packet(struct connection *connection,
char *separator;
int retval;
LOG_DEBUG("-");
LOG_DEBUG("[%d]", target->coreid);
type = strtoul(packet + 1, &separator, 16);
@@ -3178,6 +3185,7 @@ static int gdb_input_inner(struct connection *connection)
}
if (packet_size > 0) {
LOG_DEBUG(">>> current_threadid=%ld", target->rtos ? target->rtos->current_threadid : 1234);
retval = ERROR_OK;
switch (packet[0]) {
case 'T': /* Is thread alive? */