From b37e2825934ee6fefa1d5c4596dc2e7b1f152cc2 Mon Sep 17 00:00:00 2001
From: wcampbell <wcampbell1995@gmail.com>
Date: Sun, 14 Apr 2024 00:27:48 -0400
Subject: [PATCH] fuzz: Use mimalloc

---
 fuzz/Cargo.lock                 | 41 ++++++++++++++++++++++++---------
 fuzz/Cargo.toml                 |  1 +
 fuzz/fuzz_targets/filesystem.rs |  5 ++++
 3 files changed, 36 insertions(+), 11 deletions(-)

diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
index 99cc18b8..1c37b9c5 100644
--- a/fuzz/Cargo.lock
+++ b/fuzz/Cargo.lock
@@ -39,6 +39,7 @@ version = "0.0.0"
 dependencies = [
  "backhand",
  "libafl_libfuzzer",
+ "mimalloc",
 ]
 
 [[package]]
@@ -225,6 +226,16 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3979b5c37ece694f1f5e51e7ecc871fdb0f517ed04ee45f88d15d6d553cb9664"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "litrs"
 version = "0.4.1"
@@ -248,6 +259,15 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
+[[package]]
+name = "mimalloc"
+version = "0.1.39"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa01922b5ea280a911e323e4d2fd24b7fe5cc4042e0d2cda3c40775cdc4bdc9c"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.1"
@@ -366,18 +386,18 @@ checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
 
 [[package]]
 name = "thiserror"
-version = "1.0.57"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e45bcbe8ed29775f228095caf2cd67af7a4ccf756ebff23a306bf3e8b47b24b"
+checksum = "03468839009160513471e86a034bb2c5c0e4baae3b43f79ffc55c4a5427b3297"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.57"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a953cb265bef375dae3de6663da4d3804eee9682ea80d8e2542529b73c531c81"
+checksum = "c61f3ba182994efc43764a46c018c347bc492c79f024e705f46567b418f6d4f7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -458,29 +478,28 @@ dependencies = [
 
 [[package]]
 name = "zstd"
-version = "0.13.0"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bffb3309596d527cfcba7dfc6ed6052f1d39dfbd7c867aa2e865e4a449c10110"
+checksum = "2d789b1514203a1120ad2429eae43a7bd32b90976a7bb8a05f7ec02fa88cc23a"
 dependencies = [
  "zstd-safe",
 ]
 
 [[package]]
 name = "zstd-safe"
-version = "7.0.0"
+version = "7.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43747c7422e2924c11144d5229878b98180ef8b06cca4ab5af37afc8a8d8ea3e"
+checksum = "1cd99b45c6bc03a018c8b8a86025678c87e55526064e38f9df301989dce7ec0a"
 dependencies = [
  "zstd-sys",
 ]
 
 [[package]]
 name = "zstd-sys"
-version = "2.0.8+zstd.1.5.5"
+version = "2.0.10+zstd.1.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5556e6ee25d32df2586c098bbfa278803692a20d0ab9565e049480d52707ec8c"
+checksum = "c253a4914af5bafc8fa8c86ee400827e83cf6ec01195ec1f1ed8441bf00d65aa"
 dependencies = [
  "cc",
- "libc",
  "pkg-config",
 ]
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index 974f4d55..dd71c18c 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -10,6 +10,7 @@ cargo-fuzz = true
 [dependencies]
 # libfuzzer-sys = "0.4"
 libfuzzer-sys = { git = "https://github.com/AFLplusplus/LibAFL.git", branch = "libfuzzer-best", package = "libafl_libfuzzer" }
+mimalloc = { version = "*", default-features = false }
 
 [dependencies.backhand]
 path = "../backhand"
diff --git a/fuzz/fuzz_targets/filesystem.rs b/fuzz/fuzz_targets/filesystem.rs
index 07955cf2..98b262d7 100644
--- a/fuzz/fuzz_targets/filesystem.rs
+++ b/fuzz/fuzz_targets/filesystem.rs
@@ -1,5 +1,10 @@
 #![no_main]
 
+use mimalloc::MiMalloc;
+
+#[global_allocator]
+static GLOBAL: MiMalloc = MiMalloc;
+
 use backhand::FilesystemReader;
 use libfuzzer_sys::fuzz_target;