added getPath() for all linux versions as well, should work fine

library/DFProcess-linux-SHM.cpp

@@ -920,3 +920,14 @@ bool SHMProcess::Private::Aux_Core_Attach(bool & versionOK, pid_t & PID)
     #endif
     return true;
 }
+string SHMProcess::getPath()
+{
+  char cwd_name[256];
+    char target_name[1024];
+    int target_result;
+
+    sprintf(cwd_name,"/proc/%d/cwd", getPID());
+    // resolve /proc/PID/exe link
+    target_result = readlink(cwd_name, target_name, sizeof(target_name));
+    return(string(target_name));
+}

library/DFProcess-linux-wine.cpp

@@ -638,3 +638,14 @@ string WineProcess::readClassName (uint32_t vptr)
     raw.resize(raw.length() - 2);// trim @@ from end
     return raw;
 }
+string WineProcess::getPath()
+{
+  char cwd_name[256];
+    char target_name[1024];
+    int target_result;
+
+    sprintf(cwd_name,"/proc/%d/cwd", getPID());
+    // resolve /proc/PID/exe link
+    target_result = readlink(cwd_name, target_name, sizeof(target_name));
+    return(string(target_name));
+}

library/DFProcess-linux.cpp

@@ -586,3 +586,14 @@ string NormalProcess::readClassName (uint32_t vptr)
     size_t end = raw.length();
     return raw.substr(start,end-start);
 }
+string NormalProcess::getPath()
+{
+    char cwd_name[256];
+    char target_name[1024];
+    int target_result;
+
+    sprintf(cwd_name,"/proc/%d/cwd", getPID());
+    // resolve /proc/PID/exe link
+    target_result = readlink(cwd_name, target_name, sizeof(target_name));
+    return(string(target_name));
+}

library/include/dfhack/DFProcess.h

@@ -368,7 +368,7 @@ namespace DFHack
             // get the SHM start if available
             char * getSHMStart (void){return 0;};
             bool SetAndWait (uint32_t state){return false;};
-            std::string getPath() {return std::string()}; //FIXME should be pretty trival
+            std::string getPath();
     };
 #endif
 }