[PULL 23/23] bsd-user/signal: Create a dummy signal queueing function

[Warner Losh <imp@bsdimp.com>]

Create dummy signal queueing function so we can start to integrate other
architectures (at the cost of signals remaining broken) to tame the
dependency graph a bit and to bring in signals in a more controlled
fashion.  Log unimplemented events to it in the mean time.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
---
 bsd-user/qemu.h   |  2 +-
 bsd-user/signal.c | 11 ++++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index ba15b1b56f..1b3b974afe 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -17,7 +17,6 @@
 #ifndef QEMU_H
 #define QEMU_H
 
-
 #include "qemu/osdep.h"
 #include "cpu.h"
 #include "qemu/units.h"
@@ -209,6 +208,7 @@ void process_pending_signals(CPUArchState *cpu_env);
 void signal_init(void);
 long do_sigreturn(CPUArchState *env);
 long do_rt_sigreturn(CPUArchState *env);
+void queue_signal(CPUArchState *env, int sig, target_siginfo_t *info);
 abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
 
 /* mmap.c */
diff --git a/bsd-user/signal.c b/bsd-user/signal.c
index ad6d935569..0c1093deb1 100644
--- a/bsd-user/signal.c
+++ b/bsd-user/signal.c
@@ -16,10 +16,19 @@
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
-#include "qemu/osdep.h"
 
+#include "qemu/osdep.h"
 #include "qemu.h"
 
+/*
+ * Queue a signal so that it will be send to the virtual CPU as soon as
+ * possible.
+ */
+void queue_signal(CPUArchState *env, int sig, target_siginfo_t *info)
+{
+    qemu_log_mask(LOG_UNIMP, "No signal queueing, dropping signal %d\n", sig);
+}
+
 void signal_init(void)
 {
 }
-- 
2.32.0