support new llvm 19 changes

docs/Changelog.md

@@ -23,6 +23,7 @@
     - disable xml/curl/g_ string transform functions because we do not check
       for null pointers ... TODO
     - ensure shared memory variables are visible in weird build setups
+    - compatability to new LLVM 19 changes
   * afl-cmin
     - work with input files that have a space
   * afl-showmap
@@ -68,7 +69,6 @@
   - Prevent temporary files being left behind on aborted afl-whatsup
   - More CPU benchmarks added to benchmark/
 
-
 ### Version ++4.10c (release)
   - afl-fuzz:
     - default power schedule is now EXPLORE, due a fix in fast schedules

instrumentation/afl-llvm-common.cc

@@ -136,7 +136,11 @@ bool isIgnoreFunction(const llvm::Function *F) {
 
   for (auto const &ignoreListFunc : ignoreList) {
 
+#if LLVM_VERSION_MAJOR >= 19
+    if (F->getName().starts_with(ignoreListFunc)) { return true; }
+#else
     if (F->getName().startswith(ignoreListFunc)) { return true; }
+#endif
 
   }
 

instrumentation/compare-transform-pass.so.cc

@@ -54,6 +54,12 @@
   #define nullptr 0
 #endif
 
+#if LLVM_MAJOR >= 19
+  #define STARTSWITH starts_with
+#else
+  #define STARTSWITH startswith
+#endif
+
 #include <set>
 #include "afl-llvm-common.h"
 
@@ -532,10 +538,10 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
     }
 
     if (!isSizedcmp) needs_null = true;
-    if (Callee->getName().startswith("g_") ||
-        Callee->getName().startswith("curl_") ||
-        Callee->getName().startswith("Curl_") ||
-        Callee->getName().startswith("xml"))
+    if (Callee->getName().STARTSWITH("g_") ||
+        Callee->getName().STARTSWITH("curl_") ||
+        Callee->getName().STARTSWITH("Curl_") ||
+        Callee->getName().STARTSWITH("xml"))
       nullCheck = true;
 
     Value *sizedValue = isSizedcmp ? callInst->getArgOperand(2) : NULL;

src/afl-cc.c

@@ -2844,7 +2844,7 @@ static void maybe_usage(aflcc_state_t *aflcc, int argc, char **argv) {
         "  The best is LTO but it often needs RANLIB and AR settings outside "
         "of afl-cc.\n\n");
 
-#if LLVM_MAJOR > 10 || (LLVM_MAJOR == 10 && LLVM_MINOR > 0)
+#if LLVM_MAJOR >= 11 || (LLVM_MAJOR == 10 && LLVM_MINOR > 0)
   #define NATIVE_MSG                                                   \
     "  LLVM-NATIVE:  use llvm's native PCGUARD instrumentation (less " \
     "performant)\n"