Add CI for utils (#3224)

.github/workflows/build_and_test.yml

@@ -412,6 +412,38 @@ jobs:
         shell: bash
         run: unset RUSTC && ARCH=${{ matrix.arch }} RUN_ON_CI=1 LLVM_CONFIG=llvm-config-${{env.MAIN_LLVM_VERSION}} cargo run --manifest-path ./utils/ci_runner/Cargo.toml --  ${{ matrix.fuzzer }}
 
+  utils:
+    strategy:
+      matrix:
+        os: [ubuntu-24.04]
+        fuzzer:
+          # Binary only
+          - ./utils/gdb_qemu
+        arch:
+          # unless somebody pays us for the servers.
+          # - aarch64
+          # - arm
+          # - i386
+          # - ppc
+          - x86_64
+
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/workflows/ubuntu-prepare
+      - name: Add rustfmt nightly
+        shell: bash
+        run: rustup component add --toolchain nightly-x86_64-unknown-linux-gnu rustfmt
+      - name: Install deps
+        run: sudo apt-get update && sudo apt-get install -y g++-powerpc-linux-gnu gcc-powerpc-linux-gnu gdb-multiarch
+      - name: Add rust targets
+        shell: bash
+        run: rustup target add --toolchain nightly-x86_64-unknown-linux-gnu powerpc-unknown-linux-gnu
+      - name: Build and run utils (Linux)
+        if: runner.os == 'Linux'
+        shell: bash
+        run: just -d ${{ matrix.fuzzer }} --justfile ${{ matrix.fuzzer }}/Justfile test
+
   librasan-build:
       runs-on: ubuntu-24.04
       needs:

utils/gdb_qemu/Justfile

@@ -24,7 +24,22 @@ build: format
 run: demo
     cargo run -p gdb_qemu --profile {{PROFILE}} -- -p 1234 -L trace qemu-ppc -- -L /usr/powerpc-linux-gnu -g 1234 {{DEMO_DIR}}/gdb_demo
 
-gdb:
-    gdb-multiarch -ex "set architecture powerpc:MPC8XX" -ex "set pagination off" -ex "set confirm off" -ex "file {{DEMO_DIR}}/gdb_demo" -ex "target remote | {{HOST_DIR}}/gdb_qemu -p 1234 -L trace qemu-ppc -- -L /usr/powerpc-linux-gnu -g 1234 {{DEMO_DIR}}/gdb_demo"
+gdb: demo build
+    gdb-multiarch \
+        -ex "set architecture powerpc:MPC8XX" \
+        -ex "set pagination off" \
+        -ex "set confirm off" \
+        -ex "file {{DEMO_DIR}}/gdb_demo" \
+        -ex "target remote | {{HOST_DIR}}/gdb_qemu -p 1234 -L trace qemu-ppc -- -L /usr/powerpc-linux-gnu -g 1234 {{DEMO_DIR}}/gdb_demo"
+
+test: demo build
+    gdb-multiarch \
+        -ex "set architecture powerpc:MPC8XX" \
+        -ex "set pagination off" \
+        -ex "set confirm off" \
+        -ex "file {{DEMO_DIR}}/gdb_demo" \
+        -ex "target remote | {{HOST_DIR}}/gdb_qemu -p 1234 -L trace qemu-ppc -- -L /usr/powerpc-linux-gnu -g 1234 {{DEMO_DIR}}/gdb_demo" \
+        -ex "c" \
+        -ex "q"
 
 all: demo build

utils/gdb_qemu/gdb_demo/src/args.rs

@@ -1,6 +1,6 @@
 use std::fmt::Write;
 
-use clap::{builder::Str, Parser};
+use clap::{Parser, builder::Str};
 
 #[derive(Default)]
 pub struct Version;

utils/gdb_qemu/gdb_qemu/src/child.rs

@@ -3,7 +3,7 @@ use std::{
     os::fd::{AsRawFd, RawFd},
 };
 
-use anyhow::{anyhow, Result};
+use anyhow::{Result, anyhow};
 use nix::unistd::{dup2, execvp};
 
 use crate::{args::ChildArgs, exit::Exit};

utils/gdb_qemu/gdb_qemu/src/exit.rs

@@ -1,9 +1,9 @@
-use anyhow::{anyhow, Result};
-use libc::{_exit, prctl, PR_SET_PDEATHSIG};
+use anyhow::{Result, anyhow};
+use libc::{_exit, PR_SET_PDEATHSIG, prctl};
 use nix::{
     sys::{
-        signal::{sigaction, SaFlags, SigAction, SigHandler, SigSet, SIGCHLD, SIGKILL},
-        wait::{waitpid, WaitStatus::Exited},
+        signal::{SIGCHLD, SIGKILL, SaFlags, SigAction, SigHandler, SigSet, sigaction},
+        wait::{WaitStatus::Exited, waitpid},
     },
     unistd::Pid,
 };

utils/gdb_qemu/gdb_qemu/src/logger.rs

@@ -1,6 +1,6 @@
 use std::fs::File;
 
-use anyhow::{anyhow, Result};
+use anyhow::{Result, anyhow};
 use simplelog::{Config, LevelFilter, WriteLogger};
 
 use crate::args::LogArgs;

utils/gdb_qemu/gdb_qemu/src/main.rs

@@ -11,9 +11,9 @@ extern crate simplelog;
 
 use std::os::fd::AsRawFd;
 
-use anyhow::{anyhow, Result};
+use anyhow::{Result, anyhow};
 use clap::Parser;
-use nix::unistd::{fork, pipe, ForkResult};
+use nix::unistd::{ForkResult, fork, pipe};
 
 use crate::{args::Args, child::Child, exit::Exit, logger::Logger, parent::Parent};
 

utils/gdb_qemu/gdb_qemu/src/parent.rs

@@ -7,7 +7,7 @@ use std::{
     time::{Duration, SystemTime},
 };
 
-use anyhow::{anyhow, Result};
+use anyhow::{Result, anyhow};
 use nix::unistd::read;
 
 use crate::{args::ParentArgs, exit::Exit};

utils/libafl_repo_tools/src/main.rs

@@ -286,7 +286,6 @@ async fn main() -> io::Result<()> {
     let rust_excluded_directories = RegexSet::new([
         r".*target.*",
         r".*utils/noaslr.*",
-        r".*utils/gdb_qemu.*",
         r".*docs/listings/baby_fuzzer/listing-.*",
         r".*LibAFL/Cargo.toml.*",
         r".*AFLplusplus.*",