Add some more 'noreturn' annotations

Methods which longjump, unconditionally raise an
exception, or call _exit()  cannot return control
to the caller so should be annotated with 'noreturn'

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

5 files changed, 5 insertions, 7 deletions

diff --git a/client/canvas.h b/client/canvas.h
index cd6a89b9..77025687 100644
--- a/client/canvas.h
+++ b/client/canvas.h
@@ -252,7 +252,7 @@ public:
 /* TODO: unite with the window debug callbacks? */
 class GlzDecoderCanvasDebug: public GlzDecoderDebug {
 public:
-    virtual void error(const std::string& str)
+    virtual SPICE_GNUC_NORETURN void error(const std::string& str)
     {
         throw Exception(str);
     }
diff --git a/client/jpeg_decoder.cpp b/client/jpeg_decoder.cpp
index 2b2d5e47..c85902f5 100644
--- a/client/jpeg_decoder.cpp
+++ b/client/jpeg_decoder.cpp
@@ -52,10 +52,9 @@ extern "C" {
     {
     }
 
-    static jpeg_boolean jpeg_decoder_fill_input_buffer(j_decompress_ptr cinfo)
+    static SPICE_GNUC_NORETURN jpeg_boolean jpeg_decoder_fill_input_buffer(j_decompress_ptr cinfo)
     {
         PANIC("no more data for jpeg");
-        return FALSE;
     }
 
     static void jpeg_decoder_skip_input_data(j_decompress_ptr cinfo, long num_bytes)
diff --git a/client/red_client.h b/client/red_client.h
index a2f00c41..c4b418a2 100644
--- a/client/red_client.h
+++ b/client/red_client.h
@@ -99,7 +99,7 @@ private:
 
 class GlzDecoderWindowDebug: public GlzDecoderDebug {
 public:
-    virtual void error(const std::string& str)
+    virtual SPICE_GNUC_NORETURN void error(const std::string& str)
     {
         throw Exception(str);
     }
diff --git a/client/red_peer.cpp b/client/red_peer.cpp
index 10640c8d..d2a60987 100644
--- a/client/red_peer.cpp
+++ b/client/red_peer.cpp
@@ -33,7 +33,7 @@
 #include "debug.h"
 #include "platform_utils.h"
 
-static void ssl_error()
+static void SPICE_GNUC_NORETURN ssl_error()
 {
     unsigned long last_error = ERR_peek_last_error();
 
diff --git a/client/x11/platform.cpp b/client/x11/platform.cpp
index 0669b69f..14c6e0cd 100644
--- a/client/x11/platform.cpp
+++ b/client/x11/platform.cpp
@@ -3167,11 +3167,10 @@ static int x_error_handler(Display* display, XErrorEvent* error_event)
     return 0;
 }
 
-static int x_io_error_handler(Display* display)
+static SPICE_GNUC_NORETURN int x_io_error_handler(Display* display)
 {
     LOG_ERROR("x io error on %s", XDisplayString(display));
     _exit(-1);
-    return 0;
 }
 
 static XVisualInfo* get_x_vis_info(int screen)