debugger support, continue

dlangide.visualdproj

@@ -64,7 +64,7 @@
   <doXGeneration>1</doXGeneration>
   <xfilename>$(IntDir)\$(TargetName).json</xfilename>
   <debuglevel>0</debuglevel>
-  <debugids />
+  <debugids>DebugInfo</debugids>
   <versionlevel>0</versionlevel>
   <versionids>Unicode  USE_FREETYPE</versionids>
   <dump_source>0</dump_source>

src/ddebug/windows/debuginfo.d

@@ -1,5 +1,6 @@
 module ddebug.windows.debuginfo;
 
+version(Windows):
 import dlangui.core.logger;
 import std.file;
 import std.algorithm;
@@ -49,13 +50,47 @@ struct Buffer {
     ubyte[] sectionAt(uint pos) {
         uint rva = uintAt(pos);
         uint sz = uintAt(pos + 4);
+        Log.d("section rva=", rva, " sz=", sz);
+        if (!sz)
+            return null;
         enforce(pos + sz <= buf.length, new FileFormatException("sectionAt: index is outside file range"));
         return buf[rva .. rva + sz];
     }
+    string stringzAt(uint pos, uint maxSize) {
+        char[] res;
+        for (uint p = pos; maxSize == 0 || p < pos + maxSize; p++) {
+            ubyte ch = ubyteAt(p);
+            if (!ch)
+                break;
+            res ~= ch;
+        }
+        return cast(string)res;
+    }
+    ubyte[] rangeAt(uint pos, uint size) {
+        Log.d("rangeAt: pos=", pos, " size=", size, " pos+size=", pos+size, " buf.len=", buf.length);
+        uint endp = pos + size;
+        //if (endp > buf.length)
+        //    endp = cast(uint)buf.length;
+        enforce(pos <= endp, new FileFormatException("rangeAt: index is outside file range"));
+        return buf[pos .. endp];
+    }
 }
 
 struct Section {
-
+    string name;
+    uint vsize;
+    uint rva;
+    uint sz;
+    uint offset;
+    uint flags;
+    this(ref Buffer buf, uint pos) {
+        name = buf.stringzAt(pos, 8);
+        vsize = buf.uintAt(pos + 0x08);
+        rva = buf.uintAt(pos + 0x0C);
+        sz = buf.uintAt(pos + 0x10);
+        offset = buf.uintAt(pos + 0x14);
+        flags = buf.uintAt(pos + 0x28);
+    }
 }
 
 class OMFDebugInfo {
@@ -66,11 +101,40 @@ class OMFDebugInfo {
             data.buf = cast(ubyte[])std.file.read(filename);
             data.check(0, ['M', 'Z']);
             peoffset = data.uintAt(0x3c);
-            data.skip(peoffset);
+            Buffer pe;
-            data.check(0, ['P', 'E', 0, 0]);
+            pe.buf = data.buf[peoffset .. $];
-            ushort objectCount = data.ushortAt(0x06);
+            //data.skip(peoffset);
-            ushort flags = data.ushortAt(0x16); 
+            pe.check(0, ['P', 'E', 0, 0]);
-            ushort subsystem = data.ushortAt(0x5c); 
+            ushort objectCount = pe.ushortAt(0x06);
+            ushort flags = pe.ushortAt(0x16); 
+            ushort subsystem = pe.ushortAt(0x5c); 
+            uint coffRva = pe.uintAt(0x0c);
+            uint coffSize = pe.uintAt(0x10);
+            Log.d("subsystem: ", subsystem, " flags: ", flags, " coffRva:", coffRva, " coffSize:", coffSize);
+            //ubyte[] debugInfo = data.sectionAt(peoffset + 0xA8);
+            //ubyte[] exportInfo = data.sectionAt(peoffset + 0x78);
+            //ubyte[] importInfo = data.sectionAt(peoffset + 0x7c);
+            //ubyte[] resInfo = data.sectionAt(peoffset + 0x88);
+            //Buffer debugHeader;
+            //debugHeader.buf = debugInfo;
+            //uint debugType = debugHeader.uintAt(0x0C);
+            //uint debugSize = debugHeader.uintAt(0x10);
+            //uint debugRva = debugHeader.uintAt(0x14);
+            //uint debugSeek = debugHeader.uintAt(0x18);
+            //Log.d("debugInfo[", debugInfo.length, "] type=", debugType, " debugSize=", debugSize, " rva=", debugRva, " seek=", debugSeek, "  seek-rva=");
+            //ubyte[] debugRaw = data.rangeAt(debugSeek, debugSize);
+            //Log.d("debugRaw: ", debugRaw);
+            ubyte[] debugData;
+            for (int i = 0; i < objectCount; i++) {
+                Section section = Section(data, peoffset + 0xF8 + i * 0x28);
+                Log.d("section ", section.name, " rva=", section.rva, " sz=", section.sz, " offset=", section.offset);
+                if (section.name.equal(".debug"))
+                    debugData = data.rangeAt(section.offset, section.sz);
+            }
+            if (debugData) {
+                string debugName = cast(string)debugData[1.. debugData[0] + 1];
+                Log.d("Found debug data: name=", debugName, " sz=", debugData.length);
+            }
             return true;
         } catch (Exception e) {
             throw new FileFormatException(e);

src/dlangide.d

@@ -43,10 +43,12 @@ extern (C) int UIAppMain(string[] args) {
     //import ddc.lexer.tokenizer;
     //runTokenizerTest();
     debug(DebugInfo) {
+        version(Windows) {
             import ddebug.windows.debuginfo;
             import std.file;
             debugInfoTest(thisExePath);
         }
+    }
 
     // create window
     Window window = Platform.instance.createWindow("Dlang IDE", null, WindowFlag.Resizable, 900, 700);