update readme and add endbr32

README.md

@@ -3,3 +3,15 @@
 Software to inject .so libraries into running process
 
 For Linux and FreeBSD
+
+## Compnents
+
+blackjack consists of multiple components that are responsible for different tasks.
+
+### blackjack
+
+Hijacks runtime process in order to inject shared objects.
+
+### rtdisasm
+
+KISS robust runtime "disassembler". Used to analyze instructions encoded sizes and find desired instructions for trampolines. No need to bloat it with full-blown disassembler logic like other projects do - one big lookup table is enough for such purposes.

genc.py

@@ -30,7 +30,8 @@ class Instruction:
         "CD ib"         : 5,
         "0F 34"         : 6,
         "0F 05"         : 7,
-        "F3 0F 1E FA"   : 8
+        "F3 0F 1E FB"   : 8,
+        "F3 0F 1E FA"   : 9
     }
 
     def __init__(self, ins):
@@ -349,6 +350,7 @@ if __name__ == "__main__":
     
     # add custom instructions
     groups.append(CustomInstructionGroup([
+        "F3 0F 1E FB", # endbr32
         "F3 0F 1E FA" # endbr64
     ]))
 

include/rtdisasm_table.h

@@ -36,7 +36,8 @@
 #define RT_TARGET_INT_N         5   // CD ib
 #define RT_TARGET_SYSENTER      6   // 0F 34
 #define RT_TARGET_SYSCALL       7   // 0F 05
-#define RT_TARGET_ENDBR64       8   // F3 0F 1E FA
+#define RT_TARGET_ENDBR32       8   // F3 0F 1E FB
+#define RT_TARGET_ENDBR64       9   // F3 0F 1E FA
 
 #define MAX_OPCODE_LEN          4