From: Jason Wessel Date: Mon, 27 Apr 2009 18:20:21 +0000 (-0500) Subject: kgdb: continue and warn on signal passing from gdb X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d625e9c0d706eb43afbf52634d5cecacae1d57cc;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git kgdb: continue and warn on signal passing from gdb On some architectures for the segv trap, gdb wants to pass the signal back on continue. For kgdb this is not the default behavior, because it can cause the kernel to crash if you arbitrarily pass back a exception outside of kgdb. Instead of causing instability, pass a message back to gdb about the supported kgdb signal passing and execute a standard kgdb continue operation. Signed-off-by: Jason Wessel --- diff --git a/kernel/kgdb.c b/kernel/kgdb.c index ca21fe98e8de..8584eac55e30 100644 --- a/kernel/kgdb.c +++ b/kernel/kgdb.c @@ -1210,8 +1210,10 @@ static int gdb_cmd_exception_pass(struct kgdb_state *ks) return 1; } else { - error_packet(remcom_out_buffer, -EINVAL); - return 0; + kgdb_msg_write("KGDB only knows signal 9 (pass)" + " and 15 (pass and disconnect)\n" + "Executing a continue without signal passing\n", 0); + remcom_in_buffer[0] = 'c'; } /* Indicate fall through */