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gdb_server: fix ignored interrupt request from gdb during stepping 

Normally, when a ctrl-c is received from gdb, a SIGINT is reported back
unconditionally to tell gdb that the target has stopped in response.
However when a rtos support was configured, the rtos awareness overwrote
the signal with an actual thread state, which gdb then ignored and got
stuck without the user able to interrupt.

Change-Id: I40fd62333e020a8c4d9df0079270e84df9c77f88
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4445
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
riscv-compliance-dev
Matthias Welwarsky 2018-03-04 18:52:14 +01:00 committed by Matthias Welwarsky
parent a4cdce0129
commit cbf7889873
1 changed files with 4 additions and 2 deletions
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6
src/server/gdb_server.c
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@ -732,7 +732,6 @@ static void gdb_signal_reply(struct target *target, struct connection *connectio
} else {
if (gdb_connection->ctrl_c) {
signal_var = 0x2;
gdb_connection->ctrl_c = 0;
} else
signal_var = gdb_last_signal(target);
@ -769,11 +768,14 @@ static void gdb_signal_reply(struct target *target, struct connection *connectio
target->rtos->current_thread);
target->rtos->current_threadid = target->rtos->current_thread;
target->rtos->gdb_target_for_threadid(connection, target->rtos->current_threadid, &ct);
signal_var = gdb_last_signal(ct);
if (!gdb_connection->ctrl_c)
signal_var = gdb_last_signal(ct);
}
sig_reply_len = snprintf(sig_reply, sizeof(sig_reply), "T%2.2x%s%s",
signal_var, stop_reason, current_thread);
gdb_connection->ctrl_c = 0;
}
gdb_put_packet(connection, sig_reply, sig_reply_len);