fix typos

Author: vanhauser-thc

docs/Changelog.md

@@ -37,6 +37,7 @@ sending a mail to <[email protected]>.
      - LTO: AFL_LLVM_SKIP_NEVERZERO behaviour was inversed, fixed
      - setting AFL_LLVM_LAF_SPLIT_FLOATS now activates
        AFL_LLVM_LAF_SPLIT_COMPARES
+     - support for -E and -shared compilation runs
   - added honggfuzz mangle as a custom mutator in custom_mutators/honggfuzz
   - added afl-frida gum solution to examples/afl_frida (mostly imported
     from https://github.com/meme/hotwax/)

llvm_mode/README.instrument_list.md

@@ -71,7 +71,7 @@ must be mangled to match!
 
 afl++ is intelligent to identify if an entry is a filename or a function.
 However if you want to be sure (and compliant to the sancov allow/blocklist
-format), you can file entries like this:
+format), you can specify source file entries like this:
 ```
 src: *malloc.c
 ```

llvm_mode/README.persistent_mode.md

@@ -125,7 +125,7 @@ Add after the includes:
 extern unsigned char *__afl_area_ptr;
 #define MAX_DUMMY_SIZE 256000
 
-__attribute__((constructor(10))) void __afl_protect(void) {
+__attribute__((constructor(1))) void __afl_protect(void) {
 #ifdef MAP_FIXED_NOREPLACE
   __afl_area_ptr = (unsigned char*) mmap((void *)0x10000, MAX_DUMMY_SIZE, PROT_READ | PROT_WRITE, MAP_FIXED_NOREPLACE | MAP_SHARED | MAP_ANONYMOUS, -1, 0);
   if ((uint64_t)__afl_area_ptr == -1)
@@ -139,6 +139,7 @@ __attribute__((constructor(10))) void __afl_protect(void) {
 and just before `__AFL_INIT()`:
 ```
   munmap(__afl_area_ptr, MAX_DUMMY_SIZE);
+  __afl_area_ptr = NULL;
 ```
 
 ## 4) persistent mode