From bac430f14a528ec2c46f0ab145ac28fe00cdb152 Mon Sep 17 00:00:00 2001
From: Mark Lobodzinski <mark@lunarg.com>
Date: Thu, 10 Aug 2017 11:01:17 -0600
Subject: layers: GH1991, Implement BREAK debug action

Change-Id: I19ee76db3a380116c7c25819a112751d988e23b4
---
 layers/vk_layer_logging.h | 15 +++++++++++++++
 layers/vk_layer_utils.cpp | 14 ++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/layers/vk_layer_logging.h b/layers/vk_layer_logging.h
index 7cf113bf..7a565645 100644
--- a/layers/vk_layer_logging.h
+++ b/layers/vk_layer_logging.h
@@ -28,6 +28,7 @@
 #include "vk_layer_table.h"
 #include "vk_loader_platform.h"
 #include "vulkan/vk_layer.h"
+#include <signal.h>
 #include <cinttypes>
 #include <stdarg.h>
 #include <stdbool.h>
@@ -35,6 +36,7 @@
 #include <unordered_map>
 #include <vector>
 
+
 typedef struct _debug_report_data {
     VkLayerDbgFunctionNode *debug_callback_list;
     VkLayerDbgFunctionNode *default_debug_callback_list;
@@ -399,6 +401,19 @@ static inline VKAPI_ATTR VkBool32 VKAPI_CALL win32_debug_output_msg(VkFlags msgF
     return false;
 }
 
+static inline VKAPI_ATTR VkBool32 VKAPI_CALL DebugBreakCallback(VkFlags msgFlags, VkDebugReportObjectTypeEXT objType,
+    uint64_t srcObject, size_t location, int32_t msgCode,
+    const char *pLayerPrefix, const char *pMsg, void *pUserData) {
+#ifdef WIN32
+    DebugBreak();
+#else
+    raise(SIGTRAP);
+#endif
+
+    return false;
+}
+
+
 // TODO: Could be autogenerated for the specific handles for extra type safety...
 template <typename HANDLE_T>
 static inline uint64_t HandleToUint64(HANDLE_T *h) {
diff --git a/layers/vk_layer_utils.cpp b/layers/vk_layer_utils.cpp
index 31bedd8d..367c0bf1 100644
--- a/layers/vk_layer_utils.cpp
+++ b/layers/vk_layer_utils.cpp
@@ -133,4 +133,18 @@ VK_LAYER_EXPORT void layer_debug_actions(debug_report_data *report_data, std::ve
         layer_create_msg_callback(report_data, default_layer_callback, &dbgCreateInfo, pAllocator, &callback);
         logging_callback.push_back(callback);
     }
+
+    callback = VK_NULL_HANDLE;
+
+    if (debug_action & VK_DBG_LAYER_ACTION_BREAK) {
+        VkDebugReportCallbackCreateInfoEXT dbgCreateInfo;
+        memset(&dbgCreateInfo, 0, sizeof(dbgCreateInfo));
+        dbgCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
+        dbgCreateInfo.flags = report_flags;
+        dbgCreateInfo.pfnCallback = DebugBreakCallback;
+        dbgCreateInfo.pUserData = NULL;
+        layer_create_msg_callback(report_data, default_layer_callback, &dbgCreateInfo, pAllocator, &callback);
+        logging_callback.push_back(callback);
+    }
+
 }
-- 
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