Use lowmemory mode for secp256k1 fuzzing, reducing memcpy time

[rust-lightning] / fuzz / Cargo.toml

diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index 1cb7a8d6d925610e927b3c261ffbaa070dfd6131..fc8e6d5965fb7e543fd23995552db5de0164086b 100644 (file)
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -19,13 +19,17 @@ stdin_fuzz = []
 [dependencies]
 afl = { version = "0.4", optional = true }
 lightning = { path = "../lightning", features = ["fuzztarget"] }
-bitcoin = { version = "0.21", features = ["fuzztarget"] }
-bitcoin_hashes = { version = "0.7", features = ["fuzztarget"] }
+bitcoin = { version = "0.26", features = ["fuzztarget", "secp-lowmemory"] }
 hex = "0.3"
 honggfuzz = { version = "0.5", optional = true }
-secp256k1 = { version = "0.15", features=["fuzztarget"] }
 libfuzzer-sys = { git = "https://github.com/rust-fuzz/libfuzzer-sys.git", optional = true }
 
+[patch.crates-io]
+# Rust-Secp256k1 PR 282. This patch should be dropped once that is merged.
+secp256k1 = { git = 'https://github.com/TheBlueMatt/rust-secp256k1', rev = '32767e0e21e8861701ff7d5957613169d67ff1f8' }
+# bitcoin_hashes PR 111 (without the top commit). This patch should be dropped once that is merged.
+bitcoin_hashes = { git = 'https://github.com/TheBlueMatt/bitcoin_hashes', rev = 'c90d26339a3e34fd2f942aa80298f410cc41b743' }
+
 [build-dependencies]
 cc = "1.0"
 
@@ -37,6 +41,10 @@ members = ["."]
 lto = true
 codegen-units = 1
 
+# When testing a large fuzz corpus, -O1 offers a nice speedup
+[profile.dev]
+opt-level = 1
+
 [lib]
 name = "lightning_fuzz"
 path = "src/lib.rs"