nyx build script updates

2 files changed, 51 insertions, 12 deletions

diff --git a/docs/Changelog.md b/docs/Changelog.md
index 38dbba82..720a0689 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -15,7 +15,7 @@
     - workaround for ASAN with gcc_plugin mode
   - instrumentation:
     - LLVM 18 support, thanks to @devnexen!
-    - Injection (SQL, LDAP, XSS) feature now available, see
+    - Injection (SQL, LDAP, XSS) fuzzing feature now available, see
       `instrumentation/README.injections.md` how to activate/use/expand.
     - compcov/LAF-intel:
       - floating point splitting bug fix by @hexcoder
@@ -28,9 +28,9 @@
     - 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 Nyx checkout (fixes a bug)
+  - updated Nyx checkout (fixes a bug) and some QOL
   - updated the custom grammar mutator
-  - document afl-cmin does not work on macOS
+  - document afl-cmin does not work on macOS (but afl-cmin.bash does)
 
 
 ### Version ++4.09c (release)
diff --git a/nyx_mode/build_nyx_support.sh b/nyx_mode/build_nyx_support.sh
index 581a8292..454d1e7b 100755
--- a/nyx_mode/build_nyx_support.sh
+++ b/nyx_mode/build_nyx_support.sh
@@ -28,6 +28,7 @@ echo "[*] Making sure all Nyx is checked out"
 
 if git status 1>/dev/null 2>&1; then
 
+  set +e
   git submodule init
   echo "[*] initializing QEMU-Nyx submodule"
   git submodule update ./QEMU-Nyx 2>/dev/null # ignore errors
@@ -35,6 +36,7 @@ if git status 1>/dev/null 2>&1; then
   git submodule update ./packer 2>/dev/null # ignore errors
   echo "[*] initializing libnyx submodule"
   git submodule update ./libnyx 2>/dev/null # ignore errors
+  set -e
 
 else
 
@@ -48,20 +50,57 @@ test -e packer/.git || { echo "[-] packer not checked out, please install git or
 test -e libnyx/.git || { echo "[-] libnyx not checked out, please install git or check your internet connection." ; exit 1 ; }
 test -e QEMU-Nyx/.git || { echo "[-] QEMU-Nyx not checked out, please install git or check your internet connection." ; exit 1 ; }
 
-echo "[*] checking packer init.cpio.gz ..."
-if [ ! -f "packer/linux_initramfs/init.cpio.gz" ]; then
-    (cd packer/linux_initramfs/ && sh pack.sh)
+
+QEMU_NYX_VERSION="$(cat ./QEMU_NYX_VERSION)"
+cd "./QEMU-Nyx" || exit 1
+if [ -n "$NO_CHECKOUT" ]; then
+  echo "[*] Skipping checkout to $QEMU_NYX_VERSION"
+else
+  echo "[*] Checking out $QEMU_NYX_VERSION"
+  set +e
+  sh -c 'git stash' 1>/dev/null 2>/dev/null
+  git pull 1>/dev/null 2>/dev/null
+  git checkout "$QEMU_NYX_VERSION" || echo Warning: could not check out to commit $QEMU_NYX_VERSION
+  set -e
 fi
+cd - > /dev/null
 
-echo "[*] Checking libnyx ..."
-if [ ! -f "libnyx/libnyx/target/release/liblibnyx.a" ]; then
-    (cd libnyx/libnyx && cargo build --release)
+PACKER_VERSION="$(cat ./PACKER_VERSION)"
+cd "./packer" || exit 1
+if [ -n "$NO_CHECKOUT" ]; then
+  echo "[*] Skipping checkout to $PACKER_VERSION"
+else
+  echo "[*] Checking out $PACKER_VERSION"
+  set +e
+  sh -c 'git stash' 1>/dev/null 2>/dev/null
+  git pull 1>/dev/null 2>/dev/null
+  git checkout "$PACKER_VERSION" || echo Warning: could not check out to commit $PACKER_VERSION
+  set -e
 fi
+cd - > /dev/null
 
-echo "[*] Checking QEMU-Nyx ..."
-if [ ! -f "QEMU-Nyx/x86_64-softmmu/qemu-system-x86_64" ]; then
-    (cd QEMU-Nyx && ./compile_qemu_nyx.sh static)
+LIBNYX_VERSION="$(cat ./LIBNYX_VERSION)"
+cd "./libnyx/" || exit 1
+if [ -n "$NO_CHECKOUT" ]; then
+  echo "[*] Skipping checkout to $LIBNYX_VERSION"
+else
+  echo "[*] Checking out $LIBNYX_VERSION"
+  set +e
+  sh -c 'git stash' 1>/dev/null 2>/dev/null
+  git pull 1>/dev/null 2>/dev/null
+  git checkout "$LIBNYX_VERSION" || echo Warning: could not check out to commit $LIBNYX_VERSION
+  set -e
 fi
+cd - > /dev/null
+
+echo "[*] checking packer init.cpio.gz ..."
+(cd packer/linux_initramfs/ && sh pack.sh)
+
+echo "[*] Checking libnyx ..."
+(cd libnyx/libnyx && cargo build --release)
+
+echo "[*] Checking QEMU-Nyx ..."
+(cd QEMU-Nyx && ./compile_qemu_nyx.sh static )
 
 echo "[*] Checking libnyx.so ..."
 cp libnyx/libnyx/target/release/liblibnyx.so ../libnyx.so