doc: Update documents

Author: rollrat

FaultInjector.md

@@ -0,0 +1,33 @@
+# LLVM Based Fault Injector
+
+LLVM Based Fault Injector to Minimize the Impact of Binary Code.
+
+## Run sample code
+
+Reference: https://github.com/rollrat/runnable-llvm/blob/master/1samples/run.py
+
+Type2 Model
+
+```
+target file: test.c
+
+1. Compile with no optimizer options.
+clang test.c -S -emit-llvm -o test-1-clang.ll -mllvm -disable-llvm-optzns -disable-llvm-passes -O1
+
+2. Run faultinject pass
+This pass just selects target instruction using dependency checker and marking using fake extern function.
+opt -S test-1-clang.ll -o test-2-faultinject.ll -faultinject
+
+3. Run O2 optimizing
+opt -S test-2-faultinject.ll -o test-3-o2.ll -O2
+
+4-1. Run injectfault pass
+opt -S test-3-o2.ll -o test-4-injectfault.ll -injectfault
+
+4-2. Run deleteinjectfunc pass
+opt -S test-3-o2.ll -o test-4-deleteinjectfault.ll -deleteinjectfunc
+
+5. Run llc
+llc test-4-injectfault.ll -o test-5-injectfault.s
+llc test-4-deleteinjectfault.ll -o test-5-none.s
+```

README.md

@@ -8,4 +8,6 @@ This custom-llvm has been forked for implementing fault-injector.
 
 [Fault Injection](https://github.com/rollrat/runnable-llvm/blob/master/FaultInjector.md)
 
+[Register Tracing](https://github.com/rollrat/runnable-llvm/blob/master/TraceRegister.md)
+
 [Sample Codes](https://github.com/rollrat/runnable-llvm/tree/master/1samples)