Merge pull request #1938 from Teemperor/cherry/f0699d9109143754088c26604c58f5ab3e9d4678

Backport [debugserver] Fix that debugserver's stop reply packets always return signal code 0

Author: Teemperor

lldb/test/Shell/Process/Inputs/abort.c

@@ -0,0 +1,3 @@
+#include <stdlib.h>
+
+int main(int argc, char **argv) { abort(); }

lldb/test/Shell/Process/TestAbortExitCode.test

@@ -0,0 +1,6 @@
+UNSUPPORTED: system-windows
+
+RUN: %clang_host %p/Inputs/abort.c -o %t
+RUN: %lldb %t -o run -o continue | FileCheck %s
+
+CHECK: status = 6 (0x00000006)

lldb/tools/debugserver/source/RNBRemote.cpp

@@ -3066,7 +3066,7 @@ rnb_err_t RNBRemote::HandlePacket_last_signal(const char *unused) {
                  WEXITSTATUS(pid_status));
       else if (WIFSIGNALED(pid_status))
         snprintf(pid_exited_packet, sizeof(pid_exited_packet), "X%02x",
-                 WEXITSTATUS(pid_status));
+                 WTERMSIG(pid_status));
       else if (WIFSTOPPED(pid_status))
         snprintf(pid_exited_packet, sizeof(pid_exited_packet), "S%02x",
                  WSTOPSIG(pid_status));