From 4b16a4ad85588124022dcaa11a93be93e6edf17b Mon Sep 17 00:00:00 2001
From: Nick Fitzgerald <fitzgen@gmail.com>
Date: Fri, 1 May 2020 16:17:43 -0700
Subject: [PATCH] peepmatic: Define fuzz targets for various parts of
 `peepmatic`

---
 fuzz/Cargo.toml                               | 31 +++++++++++++++++++
 fuzz/fuzz_targets/peepmatic_compile.rs        |  8 +++++
 .../peepmatic_fst_differential.rs             |  8 +++++
 fuzz/fuzz_targets/peepmatic_interp.rs         |  8 +++++
 fuzz/fuzz_targets/peepmatic_parser.rs         |  8 +++++
 .../fuzz_targets/peepmatic_simple_automata.rs |  7 +++++
 6 files changed, 70 insertions(+)
 create mode 100644 fuzz/fuzz_targets/peepmatic_compile.rs
 create mode 100644 fuzz/fuzz_targets/peepmatic_fst_differential.rs
 create mode 100644 fuzz/fuzz_targets/peepmatic_interp.rs
 create mode 100644 fuzz/fuzz_targets/peepmatic_parser.rs
 create mode 100644 fuzz/fuzz_targets/peepmatic_simple_automata.rs

diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index 38fa092d58..f6ed67ac8e 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -14,6 +14,7 @@ cranelift-reader = { path = "../cranelift/reader" }
 cranelift-wasm = { path = "../cranelift/wasm" }
 libfuzzer-sys = "0.3.2"
 target-lexicon = "0.10"
+peepmatic-fuzzing = { path = "../cranelift/peepmatic/crates/fuzzing" }
 wasmtime = { path = "../crates/wasmtime" }
 wasmtime-fuzzing = { path = "../crates/fuzzing" }
 
@@ -56,5 +57,35 @@ path = "fuzz_targets/spectests.rs"
 test = false
 doc = false
 
+[[bin]]
+name = "peepmatic_simple_automata"
+path = "fuzz_targets/peepmatic_simple_automata.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "peepmatic_fst_differential"
+path = "fuzz_targets/peepmatic_fst_differential.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "peepmatic_parser"
+path = "fuzz_targets/peepmatic_parser.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "peepmatic_compile"
+path = "fuzz_targets/peepmatic_compile.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "peepmatic_interp"
+path = "fuzz_targets/peepmatic_interp.rs"
+test = false
+doc = false
+
 [features]
 binaryen = ['wasmtime-fuzzing/binaryen']
diff --git a/fuzz/fuzz_targets/peepmatic_compile.rs b/fuzz/fuzz_targets/peepmatic_compile.rs
new file mode 100644
index 0000000000..623d747280
--- /dev/null
+++ b/fuzz/fuzz_targets/peepmatic_compile.rs
@@ -0,0 +1,8 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use peepmatic_fuzzing::compile::compile;
+
+fuzz_target!(|data: &[u8]| {
+    compile(data);
+});
diff --git a/fuzz/fuzz_targets/peepmatic_fst_differential.rs b/fuzz/fuzz_targets/peepmatic_fst_differential.rs
new file mode 100644
index 0000000000..00549112db
--- /dev/null
+++ b/fuzz/fuzz_targets/peepmatic_fst_differential.rs
@@ -0,0 +1,8 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+use peepmatic_fuzzing::automata::fst_differential;
+use std::collections::HashMap;
+
+fuzz_target!(|map: HashMap<Vec<u8>, u64>| {
+    fst_differential(map);
+});
diff --git a/fuzz/fuzz_targets/peepmatic_interp.rs b/fuzz/fuzz_targets/peepmatic_interp.rs
new file mode 100644
index 0000000000..dd3c1732ab
--- /dev/null
+++ b/fuzz/fuzz_targets/peepmatic_interp.rs
@@ -0,0 +1,8 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use peepmatic_fuzzing::interp::interp;
+
+fuzz_target!(|data: &[u8]| {
+    interp(data);
+});
diff --git a/fuzz/fuzz_targets/peepmatic_parser.rs b/fuzz/fuzz_targets/peepmatic_parser.rs
new file mode 100644
index 0000000000..5664dad41b
--- /dev/null
+++ b/fuzz/fuzz_targets/peepmatic_parser.rs
@@ -0,0 +1,8 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use peepmatic_fuzzing::parser::parse;
+
+fuzz_target!(|data: &[u8]| {
+    parse(data);
+});
diff --git a/fuzz/fuzz_targets/peepmatic_simple_automata.rs b/fuzz/fuzz_targets/peepmatic_simple_automata.rs
new file mode 100644
index 0000000000..ecf2fd7850
--- /dev/null
+++ b/fuzz/fuzz_targets/peepmatic_simple_automata.rs
@@ -0,0 +1,7 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+use peepmatic_fuzzing::automata::simple_automata;
+
+fuzz_target!(|input_output_pairs: Vec<Vec<(u8, Vec<u8>)>>| {
+    simple_automata(input_output_pairs);
+});