push to stable (#1960)

* Output afl-clang-fast stuffs only if necessary (#1912)

* afl-cc header

* afl-cc common declarations

 - Add afl-cc-state.c
 - Strip includes, find_object, debug/be_quiet/have_*/callname setting from afl-cc.c
 - Use debugf_args in main
 - Modify execvp stuffs to fit new aflcc struct

* afl-cc show usage

* afl-cc mode selecting

1. compiler_mode by callname in argv[0]
2. compiler_mode by env "AFL_CC_COMPILER"
3. compiler_mode/instrument_mode by command line options "--afl-..."
4. instrument_mode/compiler_mode by various env vars including "AFL_LLVM_INSTRUMENT"
5. final checking steps
6. print "... - mode: %s-%s\n"
7. determine real argv[0] according to compiler_mode

* afl-cc macro defs

* afl-cc linking behaviors

* afl-cc fsanitize behaviors

* afl-cc misc

* afl-cc body update

* afl-cc all-in-one

formated with custom-format.py

* nits

---------

Co-authored-by: vanhauser-thc <vh@thc.org>

* changelog

* update grammar mutator

* lto llvm 12+

* docs(custom_mutators): fix missing ':' (#1953)

* Fix broken LTO mode and response file support (#1948)

* Strip `-Wl,-no-undefined` during compilation (#1952)

Make the compiler wrapper stripping `-Wl,-no-undefined` in addition to `-Wl,--no-undefined`.
Both versions of the flag are accepted by clang and, therefore, used by building systems in the wild (e.g., samba will not build without this fix).

* Remove dead code in write_to_testcase (#1955)

The custom_mutators_count check in if case is duplicate with if condition.
The else case is custom_mutators_count == 0, neither custom_mutator_list iteration nor sent check needed.

Signed-off-by: Xeonacid <h.dwwwwww@gmail.com>

* update qemuafl

* WIP: Add ability to generate drcov trace using QEMU backend (#1956)

* Document new drcov QEMU plugin

* Add link to lightkeeper for QEMU drcov file loading

---------

Co-authored-by: Jean-Romain Garnier <jean-romain.garnier@airbus.com>

* code format

* changelog

* sleep on uid != 0 afl-system-config

* fix segv about skip_next, warn on unsupported cases of linking options (#1958)

* todos

* ensure afl-cc only allows available compiler modes

* update grammar mutator

* disable aslr on apple

* fix for arm64

---------

Signed-off-by: Xeonacid <h.dwwwwww@gmail.com>
Co-authored-by: Sonic <50692172+SonicStark@users.noreply.github.com>
Co-authored-by: Xeonacid <h.dwwwwww@gmail.com>
Co-authored-by: Nils Bars <nils.bars@rub.de>
Co-authored-by: Jean-Romain Garnier <7504819+JRomainG@users.noreply.github.com>
Co-authored-by: Jean-Romain Garnier <jean-romain.garnier@airbus.com>

docs/Changelog.md

@@ -9,15 +9,23 @@
       explore is slightly better now.
     - fixed minor issues in the mutation engine, thanks to @futhewo for
       reporting!
+  - afl-cc:
+    - large rewrite by @SonicStark which fixes a few corner cases, thanks!
+    - LTO mode now requires llvm 12+
   - instrumentation:
     - LLVM 18 support, thanks to @devnexen!
     - Injection (SQL, LDAP, XSS) feature now available, see
       `instrumentation/README.injections.md` how to activate/use/expand.
     - compcov/LAF-intel:
       - floating point splitting bug fix by @hexcoder
-      - due a bug in LLVM 17 integer splitting is disabled!
+      - due a bug in LLVM 17 integer splitting is disabled there!
       - when splitting floats was selected, integers were always split as well,
-        fixed to require AFL_LLVM_LAF_SPLIT_COMPARES as it should
+        fixed to require AFL_LLVM_LAF_SPLIT_COMPARES or _ALL as it should
+  - qemu_mode:
+    - plugins are now activated by default and a new module is included that
+      produces drcov compatible traces for lighthouse/lightkeeper/...
+      thanks to @JRomainG to submitting!
+  - updated the custom grammar mutator
 
 
 ### Version ++4.09c (release)

docs/custom_mutators.md

@@ -73,7 +73,7 @@ def init(seed):
 def fuzz_count(buf):
     return cnt
 
-def splice_optout()
+def splice_optout():
     pass
 
 def fuzz(buf, add_buf, max_size):