From c43ceb8a3434db8021f2f265cc55c94610e1d01a Mon Sep 17 00:00:00 2001
From: junkzours <junkzours@gmail.com>
Date: Fri, 21 Feb 2025 03:53:24 -0500
Subject: [PATCH] Change the definition of shemu_printf so that unused
 parameters are removed from the compiled binary (#111)

* Change the definition of shemu_printf so that unused parameters (strings etc.)  are removed from the compiled binary

* Syntax fix

* Fix the implementation of shemu_internal_printf

* Replace NULL by ND_NULL in the invocation of shemu_internal_printf
---
 bdshemu/bdshemu.c                | 6 +++---
 bdshemu/include/bdshemu_common.h | 8 +++++++-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/bdshemu/bdshemu.c b/bdshemu/bdshemu.c
index a26852f..346ff9a 100644
--- a/bdshemu/bdshemu.c
+++ b/bdshemu/bdshemu.c
@@ -12,11 +12,11 @@
 
 
 //
-// shemu_printf - simple version
+// shemu_internal_printf - simple version
 //
 #ifndef BDDISASM_NO_FORMAT
 void
-shemu_printf(
+shemu_internal_printf(
     SHEMU_CONTEXT *Context,
     char *formatstring,
     ...
@@ -41,7 +41,7 @@ shemu_printf(
 }
 #else
 void
-shemu_printf(
+shemu_internal_printf(
     SHEMU_CONTEXT *Context,
     char *formatstring,
     ...
diff --git a/bdshemu/include/bdshemu_common.h b/bdshemu/include/bdshemu_common.h
index 15564bd..ad48a57 100644
--- a/bdshemu/include/bdshemu_common.h
+++ b/bdshemu/include/bdshemu_common.h
@@ -12,6 +12,12 @@
 #endif
 
 
+#ifndef BDDISASM_NO_FORMAT
+#define shemu_printf(Context, formatstring, ...) shemu_internal_printf(Context, formatstring, __VA_ARGS__)
+#else
+#define shemu_printf(Context, formatstring, ...) do { (void)formatstring; shemu_internal_printf(Context, ND_NULL, __VA_ARGS__); } while (0)
+#endif
+
 // The SHELLBMP and STACKBMP are two bitmaps which hold the state of each shellcode byte and each stack byte.
 // Inside SHELLBMP, we store whether a shellcode byte has been fetched for execution or not, and whether it was 
 // modified or not.
@@ -65,7 +71,7 @@
 
 
 void
-shemu_printf(
+shemu_internal_printf(
     SHEMU_CONTEXT *Context,
     char *formatstring,
     ...