Add libvharness and InputSetter. Set coverage map from inside the VM. Refactor commands. (#3366)

* add libvharness. add input setter. refactor commands. fix some bugs.

* fix some stuff, add host slice for qemu memory

* host memory segments

* support for concurrent libafl qemu and qemu breakpoints

* bump cmake version

* move libvharness to a new crate.

* create a rust sys crate for libvharness.

* remove old (now useless) bindings.

* add libvharness stub

* better exclude features

* make cpu mandatory for the input location.

* update qemu

* fix qemu injection example 

* fix unicorn update

* fix and add kernel fuzzer in CI

Author: rmalmain

.github/workflows/build_and_test.yml

@@ -457,7 +457,7 @@ jobs:
             # - full_system/qemu_linux_kernel
             # - full_system/qemu_linux_process
     runs-on: ubuntu-24.04
-    container: registry.gitlab.com/qemu-project/qemu/qemu/ubuntu2204:latest
+    # container: registry.gitlab.com/qemu-project/qemu/qemu/ubuntu2204:latest
     steps:
         # Get the name of the fuzzer so that we can use it as the key for a cache
         # of the built artefacts. The key cannot have any special characters.
@@ -509,10 +509,10 @@ jobs:
       matrix:
         fuzzer:
             - full_system/qemu_baremetal
-            # - full_system/qemu_linux_kernel
+            - full_system/qemu_linux_kernel
             # - full_system/qemu_linux_process
     runs-on: ubuntu-24.04
-    container: registry.gitlab.com/qemu-project/qemu/qemu/ubuntu2204:latest
+    # container: registry.gitlab.com/qemu-project/qemu/qemu/ubuntu2204:latest
     steps:
         # Get the name of the fuzzer so that we can use it as the key for a cache
         # of the built artefacts. The key cannot have any special characters.
@@ -564,7 +564,7 @@ jobs:
         fuzzer:
             - full_system/qemu_baremetal
     runs-on: ubuntu-24.04
-    container: registry.gitlab.com/qemu-project/qemu/qemu/ubuntu2204:latest
+    # container: registry.gitlab.com/qemu-project/qemu/qemu/ubuntu2204:latest
     steps:
         # Get the name of the fuzzer so that we can use it as the key for a cache
         # of the built artefacts. The key cannot have any special characters.
@@ -898,7 +898,7 @@ jobs:
       - name: Increase map sizes
         run: ./scripts/shmem_limits_macos.sh
       - name: Clippy
-        run: cargo clippy --tests --all --exclude libafl_nyx --exclude symcc_runtime --exclude runtime_test
+        run: cargo clippy --tests --all --exclude libafl_nyx --exclude symcc_runtime --exclude runtime_test --exclude libvharness_sys --exclude libafl_qemu_sys --exclude libafl_qemu --exclude libafl_qemu_build
 
   ubuntu-cross-android-arm64:
     runs-on: ubuntu-24.04

.github/workflows/qemu-fuzzer-tester-prepare/action.yml

@@ -6,16 +6,13 @@ runs:
     - name: Install QEMU deps
       shell: bash
       run: |
-        apt-get update 
-        apt-get install -y qemu-utils sudo python3-msgpack python3-jinja2 curl python3-dev gcc-arm-none-eabi \
-          gcc-arm-linux-gnueabi g++-arm-linux-gnueabi
+        sudo apt-get update 
+        sudo apt-get install -y qemu-utils sudo python3-msgpack python3-jinja2 curl python3-dev gcc-arm-none-eabi \
+          gcc-arm-linux-gnueabi g++-arm-linux-gnueabi cmake
     - name: Remove old rust
       shell: bash
       run: sudo apt purge -y 'rust*' 'cargo*'
     - uses: dtolnay/rust-toolchain@stable
-      env:
-        RUSTUP_HOME: /usr/local/rustup
-        CARGO_HOME: /usr/local/cargo
     - name: enable mult-thread for `make`
       shell: bash
       run: export MAKEFLAGS="-j$(expr $(nproc) \+ 1)"