Merge #20560: fuzz: Link all targets once

fa13e1b0c52738492310b6b421d8e38cb04da5b1 build: Add option --enable-danger-fuzz-link-all (MarcoFalke)
44444ba759480237172d83f42374c5c29c76eda0 fuzz: Link all targets once (MarcoFalke)

Pull request description:

  Currently the linker is invoked more than 150 times when compiling with `--enable-fuzz`. This is problematic for several reasons:

  * It wastes disk space north of 20 GB, as all libraries and sanitizers are linked more than 150 times
  * It wastes CPU time, as the link step can practically not be cached (similar to ccache for object files)
  * It makes it a blocker to compile the fuzz tests by default for non-fuzz builds #19388, for the aforementioned reasons
  * The build file is several thousand lines of code, without doing anything meaningful except listing each fuzz target in a highly verbose manner
  * It makes writing new fuzz tests unnecessarily hard, as build system knowledge is required; Compare that to boost unit tests, which can be added by simply editing an existing cpp file
  * It encourages fuzz tests that re-use the `buffer` or assume the `buffer` to be concatenations of seeds, which increases complexity of seeds and complexity for the fuzz engine to explore; Thus reducing the effectiveness of the affected fuzz targets

  Fixes #20088

ACKs for top commit:
  practicalswift:
    Tested ACK fa13e1b0c52738492310b6b421d8e38cb04da5b1
  sipa:
    ACK fa13e1b0c52738492310b6b421d8e38cb04da5b1. Reviewed the code changes, and tested the 3 different test_runner.py modes (run once, merge, generate). I also tested building with the new --enable-danger-fuzz-link-all

Tree-SHA512: 962ab33269ebd51810924c51266ecc62edd6ddf2fcd9a8c359ed906766f58c3f73c223f8d3cc49f2c60f0053f65e8bdd86ce9c19e673f8c2b3cd676e913f2642

95 files changed, 320 insertions, 188 deletions

diff --git a/src/test/fuzz/addition_overflow.cpp b/src/test/fuzz/addition_overflow.cpp
index 7350ec7838..c6cfbd8d30 100644
--- a/src/test/fuzz/addition_overflow.cpp
+++ b/src/test/fuzz/addition_overflow.cpp
@@ -40,7 +40,7 @@ void TestAdditionOverflow(FuzzedDataProvider& fuzzed_data_provider)
 }
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(addition_overflow)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     TestAdditionOverflow<int64_t>(fuzzed_data_provider);
diff --git a/src/test/fuzz/addrdb.cpp b/src/test/fuzz/addrdb.cpp
index 16b1cb755a..d15c785673 100644
--- a/src/test/fuzz/addrdb.cpp
+++ b/src/test/fuzz/addrdb.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(addrdb)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/addrman.cpp b/src/test/fuzz/addrman.cpp
index ae595be742..af9080b5e9 100644
--- a/src/test/fuzz/addrman.cpp
+++ b/src/test/fuzz/addrman.cpp
@@ -17,7 +17,7 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_addrman()
 {
     SelectParams(CBaseChainParams::REGTEST);
 }
@@ -32,7 +32,7 @@ public:
     }
 };
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(addrman, initialize_addrman)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     SetMockTime(ConsumeTime(fuzzed_data_provider));
diff --git a/src/test/fuzz/asmap.cpp b/src/test/fuzz/asmap.cpp
index e3aefa18a3..4c5bc0cbf2 100644
--- a/src/test/fuzz/asmap.cpp
+++ b/src/test/fuzz/asmap.cpp
@@ -27,7 +27,7 @@ static const std::vector<bool> IPV4_PREFIX_ASMAP = {
     true, true, false, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true          // Match 0xFF
 };
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(asmap)
 {
     // Encoding: [7 bits: asmap size] [1 bit: ipv6?] [3-130 bytes: asmap] [4 or 16 bytes: addr]
     if (buffer.size() < 1 + 3 + 4) return;
diff --git a/src/test/fuzz/asmap_direct.cpp b/src/test/fuzz/asmap_direct.cpp
index 2d21eff9d6..8b7822dc16 100644
--- a/src/test/fuzz/asmap_direct.cpp
+++ b/src/test/fuzz/asmap_direct.cpp
@@ -11,7 +11,7 @@
 
 #include <assert.h>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(asmap_direct)
 {
     // Encoding: [asmap using 1 bit / byte] 0xFF [addr using 1 bit / byte]
     std::optional<size_t> sep_pos_opt;
diff --git a/src/test/fuzz/autofile.cpp b/src/test/fuzz/autofile.cpp
index 7ea0bdd2a7..eb3424ef28 100644
--- a/src/test/fuzz/autofile.cpp
+++ b/src/test/fuzz/autofile.cpp
@@ -15,7 +15,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(autofile)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     FuzzedAutoFileProvider fuzzed_auto_file_provider = ConsumeAutoFile(fuzzed_data_provider);
diff --git a/src/test/fuzz/banman.cpp b/src/test/fuzz/banman.cpp
index 0776848a95..cf69fa0722 100644
--- a/src/test/fuzz/banman.cpp
+++ b/src/test/fuzz/banman.cpp
@@ -24,12 +24,12 @@ int64_t ConsumeBanTimeOffset(FuzzedDataProvider& fuzzed_data_provider) noexcept
 }
 } // namespace
 
-void initialize()
+void initialize_banman()
 {
     InitializeFuzzingContext();
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(banman, initialize_banman)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     SetMockTime(ConsumeTime(fuzzed_data_provider));
diff --git a/src/test/fuzz/base_encode_decode.cpp b/src/test/fuzz/base_encode_decode.cpp
index 8d49f93c2f..4470e13a61 100644
--- a/src/test/fuzz/base_encode_decode.cpp
+++ b/src/test/fuzz/base_encode_decode.cpp
@@ -14,7 +14,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(base_encode_decode)
 {
     const std::string random_encoded_string(buffer.begin(), buffer.end());
 
diff --git a/src/test/fuzz/bech32.cpp b/src/test/fuzz/bech32.cpp
index 8b91f9bc96..b1a485e12e 100644
--- a/src/test/fuzz/bech32.cpp
+++ b/src/test/fuzz/bech32.cpp
@@ -13,7 +13,7 @@
 #include <utility>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(bech32)
 {
     const std::string random_string(buffer.begin(), buffer.end());
     const std::pair<std::string, std::vector<uint8_t>> r1 = bech32::Decode(random_string);
diff --git a/src/test/fuzz/block.cpp b/src/test/fuzz/block.cpp
index 91bd34a251..65a33de4b4 100644
--- a/src/test/fuzz/block.cpp
+++ b/src/test/fuzz/block.cpp
@@ -17,13 +17,13 @@
 #include <cassert>
 #include <string>
 
-void initialize()
+void initialize_block()
 {
     static const ECCVerifyHandle verify_handle;
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(block, initialize_block)
 {
     CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
     CBlock block;
diff --git a/src/test/fuzz/block_header.cpp b/src/test/fuzz/block_header.cpp
index 09c2b4a951..c73270dcb3 100644
--- a/src/test/fuzz/block_header.cpp
+++ b/src/test/fuzz/block_header.cpp
@@ -14,7 +14,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(block_header)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::optional<CBlockHeader> block_header = ConsumeDeserializable<CBlockHeader>(fuzzed_data_provider);
diff --git a/src/test/fuzz/blockfilter.cpp b/src/test/fuzz/blockfilter.cpp
index 7232325a20..7fa06085f8 100644
--- a/src/test/fuzz/blockfilter.cpp
+++ b/src/test/fuzz/blockfilter.cpp
@@ -12,7 +12,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(blockfilter)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::optional<BlockFilter> block_filter = ConsumeDeserializable<BlockFilter>(fuzzed_data_provider);
diff --git a/src/test/fuzz/bloom_filter.cpp b/src/test/fuzz/bloom_filter.cpp
index d955c71bc9..c0c66c564b 100644
--- a/src/test/fuzz/bloom_filter.cpp
+++ b/src/test/fuzz/bloom_filter.cpp
@@ -15,7 +15,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(bloom_filter)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/buffered_file.cpp b/src/test/fuzz/buffered_file.cpp
index e575640be5..23e197456a 100644
--- a/src/test/fuzz/buffered_file.cpp
+++ b/src/test/fuzz/buffered_file.cpp
@@ -15,7 +15,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(buffered_file)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     FuzzedFileProvider fuzzed_file_provider = ConsumeFile(fuzzed_data_provider);
diff --git a/src/test/fuzz/chain.cpp b/src/test/fuzz/chain.cpp
index 47c71850ce..9f7074b423 100644
--- a/src/test/fuzz/chain.cpp
+++ b/src/test/fuzz/chain.cpp
@@ -11,7 +11,7 @@
 #include <optional>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(chain)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     std::optional<CDiskBlockIndex> disk_block_index = ConsumeDeserializable<CDiskBlockIndex>(fuzzed_data_provider);
diff --git a/src/test/fuzz/checkqueue.cpp b/src/test/fuzz/checkqueue.cpp
index c69043bb6b..0b16f0f0d5 100644
--- a/src/test/fuzz/checkqueue.cpp
+++ b/src/test/fuzz/checkqueue.cpp
@@ -32,7 +32,7 @@ struct DumbCheck {
 };
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(checkqueue)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/coins_view.cpp b/src/test/fuzz/coins_view.cpp
index ac034809b0..1ae421493e 100644
--- a/src/test/fuzz/coins_view.cpp
+++ b/src/test/fuzz/coins_view.cpp
@@ -34,14 +34,14 @@ bool operator==(const Coin& a, const Coin& b)
 }
 } // namespace
 
-void initialize()
+void initialize_coins_view()
 {
     static const ECCVerifyHandle ecc_verify_handle;
     ECC_Start();
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(coins_view, initialize_coins_view)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     CCoinsView backend_coins_view;
diff --git a/src/test/fuzz/connman.cpp b/src/test/fuzz/connman.cpp
index 8154f21092..c5702cf98e 100644
--- a/src/test/fuzz/connman.cpp
+++ b/src/test/fuzz/connman.cpp
@@ -15,12 +15,12 @@
 #include <cstdint>
 #include <vector>
 
-void initialize()
+void initialize_connman()
 {
     InitializeFuzzingContext();
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(connman, initialize_connman)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     SetMockTime(ConsumeTime(fuzzed_data_provider));
diff --git a/src/test/fuzz/crypto.cpp b/src/test/fuzz/crypto.cpp
index 664e65accc..4783cc1c43 100644
--- a/src/test/fuzz/crypto.cpp
+++ b/src/test/fuzz/crypto.cpp
@@ -17,7 +17,7 @@
 #include <cstdint>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(crypto)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     std::vector<uint8_t> data = ConsumeRandomLengthByteVector(fuzzed_data_provider);
diff --git a/src/test/fuzz/crypto_aes256.cpp b/src/test/fuzz/crypto_aes256.cpp
index ae14073c96..ccabd1f7dc 100644
--- a/src/test/fuzz/crypto_aes256.cpp
+++ b/src/test/fuzz/crypto_aes256.cpp
@@ -11,7 +11,7 @@
 #include <cstdint>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(crypto_aes256)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     const std::vector<uint8_t> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES256_KEYSIZE);
diff --git a/src/test/fuzz/crypto_aes256cbc.cpp b/src/test/fuzz/crypto_aes256cbc.cpp
index 52983c7e79..6d4138e546 100644
--- a/src/test/fuzz/crypto_aes256cbc.cpp
+++ b/src/test/fuzz/crypto_aes256cbc.cpp
@@ -11,7 +11,7 @@
 #include <cstdint>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(crypto_aes256cbc)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     const std::vector<uint8_t> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES256_KEYSIZE);
diff --git a/src/test/fuzz/crypto_chacha20.cpp b/src/test/fuzz/crypto_chacha20.cpp
index b7438d312d..d751466f11 100644
--- a/src/test/fuzz/crypto_chacha20.cpp
+++ b/src/test/fuzz/crypto_chacha20.cpp
@@ -10,7 +10,7 @@
 #include <cstdint>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(crypto_chacha20)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
 
diff --git a/src/test/fuzz/crypto_chacha20_poly1305_aead.cpp b/src/test/fuzz/crypto_chacha20_poly1305_aead.cpp
index 48e4263f27..631af9c70d 100644
--- a/src/test/fuzz/crypto_chacha20_poly1305_aead.cpp
+++ b/src/test/fuzz/crypto_chacha20_poly1305_aead.cpp
@@ -13,7 +13,7 @@
 #include <limits>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(crypto_chacha20_poly1305_aead)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
 
diff --git a/src/test/fuzz/crypto_common.cpp b/src/test/fuzz/crypto_common.cpp
index 7ccb125216..8e07dfedb9 100644
--- a/src/test/fuzz/crypto_common.cpp
+++ b/src/test/fuzz/crypto_common.cpp
@@ -13,7 +13,7 @@
 #include <cstring>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(crypto_common)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     const uint16_t random_u16 = fuzzed_data_provider.ConsumeIntegral<uint16_t>();
diff --git a/src/test/fuzz/crypto_hkdf_hmac_sha256_l32.cpp b/src/test/fuzz/crypto_hkdf_hmac_sha256_l32.cpp
index e0a4e90c10..8cb9c55283 100644
--- a/src/test/fuzz/crypto_hkdf_hmac_sha256_l32.cpp
+++ b/src/test/fuzz/crypto_hkdf_hmac_sha256_l32.cpp
@@ -11,7 +11,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(crypto_hkdf_hmac_sha256_l32)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
 
diff --git a/src/test/fuzz/crypto_poly1305.cpp b/src/test/fuzz/crypto_poly1305.cpp
index 5681e6a693..ac555ed68c 100644
--- a/src/test/fuzz/crypto_poly1305.cpp
+++ b/src/test/fuzz/crypto_poly1305.cpp
@@ -10,7 +10,7 @@
 #include <cstdint>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(crypto_poly1305)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
 
diff --git a/src/test/fuzz/cuckoocache.cpp b/src/test/fuzz/cuckoocache.cpp
index 5b45aa79d8..dc20dc3f62 100644
--- a/src/test/fuzz/cuckoocache.cpp
+++ b/src/test/fuzz/cuckoocache.cpp
@@ -26,7 +26,7 @@ struct RandomHasher {
 };
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(cuckoocache)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     fuzzed_data_provider_ptr = &fuzzed_data_provider;
diff --git a/src/test/fuzz/danger_link_all.sh b/src/test/fuzz/danger_link_all.sh
new file mode 100755
index 0000000000..2ddd00c658
--- /dev/null
+++ b/src/test/fuzz/danger_link_all.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+# Copyright (c) 2020 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+export LC_ALL=C.UTF-8
+
+set -e
+
+ROOT_DIR="$(git rev-parse --show-toplevel)"
+
+# Run only once (break make recursion)
+if [ -d "${ROOT_DIR}/lock_fuzz_link_all" ]; then
+  exit
+fi
+mkdir "${ROOT_DIR}/lock_fuzz_link_all"
+
+echo "Linking each fuzz target separately."
+for FUZZING_HARNESS in $(PRINT_ALL_FUZZ_TARGETS_AND_ABORT=1 "${ROOT_DIR}/src/test/fuzz/fuzz" | sort -u); do
+    echo "Building src/test/fuzz/${FUZZING_HARNESS} ..."
+    git checkout -- "${ROOT_DIR}/src/test/fuzz/fuzz.cpp"
+    sed -i "s/std::getenv(\"FUZZ\")/\"${FUZZING_HARNESS}\"/g" "${ROOT_DIR}/src/test/fuzz/fuzz.cpp"
+    make
+    mv "${ROOT_DIR}/src/test/fuzz/fuzz" "${ROOT_DIR}/src/test/fuzz/${FUZZING_HARNESS}"
+done
+git checkout -- "${ROOT_DIR}/src/test/fuzz/fuzz.cpp"
+rmdir "${ROOT_DIR}/lock_fuzz_link_all"
+echo "Successfully built all fuzz targets."
diff --git a/src/test/fuzz/decode_tx.cpp b/src/test/fuzz/decode_tx.cpp
index a2b18c0365..249f5a3cda 100644
--- a/src/test/fuzz/decode_tx.cpp
+++ b/src/test/fuzz/decode_tx.cpp
@@ -12,7 +12,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(decode_tx)
 {
     const std::string tx_hex = HexStr(buffer);
     CMutableTransaction mtx;
diff --git a/src/test/fuzz/descriptor_parse.cpp b/src/test/fuzz/descriptor_parse.cpp
index 7b57a2c1e2..0d1921f285 100644
--- a/src/test/fuzz/descriptor_parse.cpp
+++ b/src/test/fuzz/descriptor_parse.cpp
@@ -8,14 +8,14 @@
 #include <test/fuzz/fuzz.h>
 #include <util/memory.h>
 
-void initialize()
+void initialize_descriptor_parse()
 {
     static const ECCVerifyHandle verify_handle;
     ECC_Start();
     SelectParams(CBaseChainParams::MAIN);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(descriptor_parse, initialize_descriptor_parse)
 {
     const std::string descriptor(buffer.begin(), buffer.end());
     FlatSigningProvider signing_provider;
diff --git a/src/test/fuzz/deserialize.cpp b/src/test/fuzz/deserialize.cpp
index 8ca5366c8a..74dec6475e 100644
--- a/src/test/fuzz/deserialize.cpp
+++ b/src/test/fuzz/deserialize.cpp
@@ -34,12 +34,21 @@
 
 #include <test/fuzz/fuzz.h>
 
-void initialize()
+void initialize_deserialize()
 {
     // Fuzzers using pubkey must hold an ECCVerifyHandle.
     static const ECCVerifyHandle verify_handle;
 }
 
+#define FUZZ_TARGET_DESERIALIZE(name, code)                \
+    FUZZ_TARGET_INIT(name, initialize_deserialize)         \
+    {                                                      \
+        try {                                              \
+            code                                           \
+        } catch (const invalid_fuzzing_input_exception&) { \
+        }                                                  \
+    }
+
 namespace {
 
 struct invalid_fuzzing_input_exception : public std::exception {
@@ -92,44 +101,51 @@ void AssertEqualAfterSerializeDeserialize(const T& obj, const int version = INIT
 
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
-{
-    try {
-#if BLOCK_FILTER_DESERIALIZE
+FUZZ_TARGET_DESERIALIZE(block_filter_deserialize, {
         BlockFilter block_filter;
         DeserializeFromFuzzingInput(buffer, block_filter);
-#elif ADDR_INFO_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(addr_info_deserialize, {
         CAddrInfo addr_info;
         DeserializeFromFuzzingInput(buffer, addr_info);
-#elif BLOCK_FILE_INFO_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(block_file_info_deserialize, {
         CBlockFileInfo block_file_info;
         DeserializeFromFuzzingInput(buffer, block_file_info);
-#elif BLOCK_HEADER_AND_SHORT_TXIDS_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(block_header_and_short_txids_deserialize, {
         CBlockHeaderAndShortTxIDs block_header_and_short_txids;
         DeserializeFromFuzzingInput(buffer, block_header_and_short_txids);
-#elif FEE_RATE_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(fee_rate_deserialize, {
         CFeeRate fee_rate;
         DeserializeFromFuzzingInput(buffer, fee_rate);
         AssertEqualAfterSerializeDeserialize(fee_rate);
-#elif MERKLE_BLOCK_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(merkle_block_deserialize, {
         CMerkleBlock merkle_block;
         DeserializeFromFuzzingInput(buffer, merkle_block);
-#elif OUT_POINT_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(out_point_deserialize, {
         COutPoint out_point;
         DeserializeFromFuzzingInput(buffer, out_point);
         AssertEqualAfterSerializeDeserialize(out_point);
-#elif PARTIAL_MERKLE_TREE_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(partial_merkle_tree_deserialize, {
         CPartialMerkleTree partial_merkle_tree;
         DeserializeFromFuzzingInput(buffer, partial_merkle_tree);
-#elif PUB_KEY_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(pub_key_deserialize, {
         CPubKey pub_key;
         DeserializeFromFuzzingInput(buffer, pub_key);
         // TODO: The following equivalence should hold for CPubKey? Fix.
         // AssertEqualAfterSerializeDeserialize(pub_key);
-#elif SCRIPT_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(script_deserialize, {
         CScript script;
         DeserializeFromFuzzingInput(buffer, script);
-#elif SUB_NET_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(sub_net_deserialize, {
         CSubNet sub_net_1;
         DeserializeFromFuzzingInput(buffer, sub_net_1, INIT_PROTO_VERSION);
         AssertEqualAfterSerializeDeserialize(sub_net_1, INIT_PROTO_VERSION);
@@ -139,67 +155,85 @@ void test_one_input(const std::vector<uint8_t>& buffer)
         CSubNet sub_net_3;
         DeserializeFromFuzzingInput(buffer, sub_net_3);
         AssertEqualAfterSerializeDeserialize(sub_net_3, INIT_PROTO_VERSION | ADDRV2_FORMAT);
-#elif TX_IN_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(tx_in_deserialize, {
         CTxIn tx_in;
         DeserializeFromFuzzingInput(buffer, tx_in);
         AssertEqualAfterSerializeDeserialize(tx_in);
-#elif FLAT_FILE_POS_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(flat_file_pos_deserialize, {
         FlatFilePos flat_file_pos;
         DeserializeFromFuzzingInput(buffer, flat_file_pos);
         AssertEqualAfterSerializeDeserialize(flat_file_pos);
-#elif KEY_ORIGIN_INFO_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(key_origin_info_deserialize, {
         KeyOriginInfo key_origin_info;
         DeserializeFromFuzzingInput(buffer, key_origin_info);
         AssertEqualAfterSerializeDeserialize(key_origin_info);
-#elif PARTIALLY_SIGNED_TRANSACTION_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(partially_signed_transaction_deserialize, {
         PartiallySignedTransaction partially_signed_transaction;
         DeserializeFromFuzzingInput(buffer, partially_signed_transaction);
-#elif PREFILLED_TRANSACTION_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(prefilled_transaction_deserialize, {
         PrefilledTransaction prefilled_transaction;
         DeserializeFromFuzzingInput(buffer, prefilled_transaction);
-#elif PSBT_INPUT_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(psbt_input_deserialize, {
         PSBTInput psbt_input;
         DeserializeFromFuzzingInput(buffer, psbt_input);
-#elif PSBT_OUTPUT_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(psbt_output_deserialize, {
         PSBTOutput psbt_output;
         DeserializeFromFuzzingInput(buffer, psbt_output);
-#elif BLOCK_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(block_deserialize, {
         CBlock block;
         DeserializeFromFuzzingInput(buffer, block);
-#elif BLOCKLOCATOR_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(blocklocator_deserialize, {
         CBlockLocator bl;
         DeserializeFromFuzzingInput(buffer, bl);
-#elif BLOCKMERKLEROOT
+})
+FUZZ_TARGET_DESERIALIZE(blockmerkleroot, {
         CBlock block;
         DeserializeFromFuzzingInput(buffer, block);
         bool mutated;
         BlockMerkleRoot(block, &mutated);
-#elif ADDRMAN_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(addrman_deserialize, {
         CAddrMan am;
         DeserializeFromFuzzingInput(buffer, am);
-#elif BLOCKHEADER_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(blockheader_deserialize, {
         CBlockHeader bh;
         DeserializeFromFuzzingInput(buffer, bh);
-#elif BANENTRY_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(banentry_deserialize, {
         CBanEntry be;
         DeserializeFromFuzzingInput(buffer, be);
-#elif TXUNDO_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(txundo_deserialize, {
         CTxUndo tu;
         DeserializeFromFuzzingInput(buffer, tu);
-#elif BLOCKUNDO_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(blockundo_deserialize, {
         CBlockUndo bu;
         DeserializeFromFuzzingInput(buffer, bu);
-#elif COINS_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(coins_deserialize, {
         Coin coin;
         DeserializeFromFuzzingInput(buffer, coin);
-#elif NETADDR_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(netaddr_deserialize, {
         CNetAddr na;
         DeserializeFromFuzzingInput(buffer, na);
         if (na.IsAddrV1Compatible()) {
             AssertEqualAfterSerializeDeserialize(na);
         }
         AssertEqualAfterSerializeDeserialize(na, INIT_PROTO_VERSION | ADDRV2_FORMAT);
-#elif SERVICE_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(service_deserialize, {
         CService s;
         DeserializeFromFuzzingInput(buffer, s);
         if (s.IsAddrV1Compatible()) {
@@ -213,50 +247,56 @@ void test_one_input(const std::vector<uint8_t>& buffer)
         CService s2;
         DeserializeFromFuzzingInput(buffer, s2, INIT_PROTO_VERSION | ADDRV2_FORMAT);
         AssertEqualAfterSerializeDeserialize(s2, INIT_PROTO_VERSION | ADDRV2_FORMAT);
-#elif MESSAGEHEADER_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(messageheader_deserialize, {
         CMessageHeader mh;
         DeserializeFromFuzzingInput(buffer, mh);
         (void)mh.IsCommandValid();
-#elif ADDRESS_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(address_deserialize, {
         CAddress a;
         DeserializeFromFuzzingInput(buffer, a);
-#elif INV_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(inv_deserialize, {
         CInv i;
         DeserializeFromFuzzingInput(buffer, i);
-#elif BLOOMFILTER_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(bloomfilter_deserialize, {
         CBloomFilter bf;
         DeserializeFromFuzzingInput(buffer, bf);
-#elif DISKBLOCKINDEX_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(diskblockindex_deserialize, {
         CDiskBlockIndex dbi;
         DeserializeFromFuzzingInput(buffer, dbi);
-#elif TXOUTCOMPRESSOR_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(txoutcompressor_deserialize, {
         CTxOut to;
         auto toc = Using<TxOutCompression>(to);
         DeserializeFromFuzzingInput(buffer, toc);
-#elif BLOCKTRANSACTIONS_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(blocktransactions_deserialize, {
         BlockTransactions bt;
         DeserializeFromFuzzingInput(buffer, bt);
-#elif BLOCKTRANSACTIONSREQUEST_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(blocktransactionsrequest_deserialize, {
         BlockTransactionsRequest btr;
         DeserializeFromFuzzingInput(buffer, btr);
-#elif SNAPSHOTMETADATA_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(snapshotmetadata_deserialize, {
         SnapshotMetadata snapshot_metadata;
         DeserializeFromFuzzingInput(buffer, snapshot_metadata);
-#elif UINT160_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(uint160_deserialize, {
         uint160 u160;
         DeserializeFromFuzzingInput(buffer, u160);
         AssertEqualAfterSerializeDeserialize(u160);
-#elif UINT256_DESERIALIZE
+})
+FUZZ_TARGET_DESERIALIZE(uint256_deserialize, {
         uint256 u256;
         DeserializeFromFuzzingInput(buffer, u256);
         AssertEqualAfterSerializeDeserialize(u256);
-#else
-#error Need at least one fuzz target to compile
-#endif
+})
         // Classes intentionally not covered in this file since their deserialization code is
         // fuzzed elsewhere:
         // * Deserialization of CTxOut is fuzzed in test/fuzz/tx_out.cpp
         // * Deserialization of CMutableTransaction is fuzzed in src/test/fuzz/transaction.cpp
-    } catch (const invalid_fuzzing_input_exception&) {
-    }
-}
diff --git a/src/test/fuzz/eval_script.cpp b/src/test/fuzz/eval_script.cpp
index c556599db3..635288fc36 100644
--- a/src/test/fuzz/eval_script.cpp
+++ b/src/test/fuzz/eval_script.cpp
@@ -10,12 +10,12 @@
 
 #include <limits>
 
-void initialize()
+void initialize_eval_script()
 {
     static const ECCVerifyHandle verify_handle;
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(eval_script, initialize_eval_script)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const unsigned int flags = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
diff --git a/src/test/fuzz/fee_rate.cpp b/src/test/fuzz/fee_rate.cpp
index f3d44d9f93..2955213635 100644
--- a/src/test/fuzz/fee_rate.cpp
+++ b/src/test/fuzz/fee_rate.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(fee_rate)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const CAmount satoshis_per_k = ConsumeMoney(fuzzed_data_provider);
diff --git a/src/test/fuzz/fees.cpp b/src/test/fuzz/fees.cpp
index ce8700befa..61c7681bf9 100644
--- a/src/test/fuzz/fees.cpp
+++ b/src/test/fuzz/fees.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(fees)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const CFeeRate minimal_incremental_fee{ConsumeMoney(fuzzed_data_provider)};
diff --git a/src/test/fuzz/flatfile.cpp b/src/test/fuzz/flatfile.cpp
index 95dabb8bab..d142e374b1 100644
--- a/src/test/fuzz/flatfile.cpp
+++ b/src/test/fuzz/flatfile.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(flatfile)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     std::optional<FlatFilePos> flat_file_pos = ConsumeDeserializable<FlatFilePos>(fuzzed_data_provider);
diff --git a/src/test/fuzz/float.cpp b/src/test/fuzz/float.cpp
index a24bae5b35..d18a87d177 100644
--- a/src/test/fuzz/float.cpp
+++ b/src/test/fuzz/float.cpp
@@ -12,7 +12,7 @@
 #include <cassert>
 #include <cstdint>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(float)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/fuzz.cpp b/src/test/fuzz/fuzz.cpp
index 753cfffdcb..fd87667755 100644
--- a/src/test/fuzz/fuzz.cpp
+++ b/src/test/fuzz/fuzz.cpp
@@ -5,6 +5,7 @@
 #include <test/fuzz/fuzz.h>
 
 #include <test/util/setup_common.h>
+#include <util/check.h>
 
 #include <cstdint>
 #include <unistd.h>
@@ -12,6 +13,36 @@
 
 const std::function<void(const std::string&)> G_TEST_LOG_FUN{};
 
+std::map<std::string_view, std::tuple<TypeTestOneInput, TypeInitialize>>& FuzzTargets()
+{
+    static std::map<std::string_view, std::tuple<TypeTestOneInput, TypeInitialize>> g_fuzz_targets;
+    return g_fuzz_targets;
+}
+
+void FuzzFrameworkRegisterTarget(std::string_view name, TypeTestOneInput target, TypeInitialize init)
+{
+    const auto it_ins = FuzzTargets().try_emplace(name, std::move(target), std::move(init));
+    Assert(it_ins.second);
+}
+
+static TypeTestOneInput* g_test_one_input{nullptr};
+
+void initialize()
+{
+    if (std::getenv("PRINT_ALL_FUZZ_TARGETS_AND_ABORT")) {
+        for (const auto& t : FuzzTargets()) {
+            std::cout << t.first << std::endl;
+        }
+        Assert(false);
+    }
+    std::string_view fuzz_target{Assert(std::getenv("FUZZ"))};
+    const auto it = FuzzTargets().find(fuzz_target);
+    Assert(it != FuzzTargets().end());
+    Assert(!g_test_one_input);
+    g_test_one_input = &std::get<0>(it->second);
+    std::get<1>(it->second)();
+}
+
 #if defined(PROVIDE_MAIN_FUNCTION)
 static bool read_stdin(std::vector<uint8_t>& data)
 {
@@ -24,14 +55,10 @@ static bool read_stdin(std::vector<uint8_t>& data)
 }
 #endif
 
-// Default initialization: Override using a non-weak initialize().
-__attribute__((weak)) void initialize()
-{
-}
-
 // This function is used by libFuzzer
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
 {
+    static const auto& test_one_input = *Assert(g_test_one_input);
     const std::vector<uint8_t> input(data, data + size);
     test_one_input(input);
     return 0;
@@ -48,6 +75,7 @@ extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv)
 __attribute__((weak)) int main(int argc, char** argv)
 {
     initialize();
+    static const auto& test_one_input = *Assert(g_test_one_input);
 #ifdef __AFL_INIT
     // Enable AFL deferred forkserver mode. Requires compilation using
     // afl-clang-fast++. See fuzzing.md for details.
diff --git a/src/test/fuzz/fuzz.h b/src/test/fuzz/fuzz.h
index 3be202b16e..544379c0b0 100644
--- a/src/test/fuzz/fuzz.h
+++ b/src/test/fuzz/fuzz.h
@@ -5,10 +5,29 @@
 #ifndef BITCOIN_TEST_FUZZ_FUZZ_H
 #define BITCOIN_TEST_FUZZ_FUZZ_H
 
-#include <stdint.h>
+#include <cstdint>
+#include <functional>
+#include <string_view>
 #include <vector>
 
-void initialize();
-void test_one_input(const std::vector<uint8_t>& buffer);
+using TypeTestOneInput = std::function<void(const std::vector<uint8_t>&)>;
+using TypeInitialize = std::function<void()>;
+
+void FuzzFrameworkRegisterTarget(std::string_view name, TypeTestOneInput target, TypeInitialize init);
+
+void FuzzFrameworkEmptyFun() {}
+
+#define FUZZ_TARGET(name) \
+    FUZZ_TARGET_INIT(name, FuzzFrameworkEmptyFun)
+
+#define FUZZ_TARGET_INIT(name, init_fun)                                      \
+    void name##_fuzz_target(const std::vector<uint8_t>&);                     \
+    struct name##_Before_Main {                                               \
+        name##_Before_Main()                                                  \
+        {                                                                     \
+            FuzzFrameworkRegisterTarget(#name, name##_fuzz_target, init_fun); \
+        }                                                                     \
+    } const static g_##name##_before_main;                                    \
+    void name##_fuzz_target(const std::vector<uint8_t>& buffer)
 
 #endif // BITCOIN_TEST_FUZZ_FUZZ_H
diff --git a/src/test/fuzz/golomb_rice.cpp b/src/test/fuzz/golomb_rice.cpp
index a9f450b0c4..c99bf940c7 100644
--- a/src/test/fuzz/golomb_rice.cpp
+++ b/src/test/fuzz/golomb_rice.cpp
@@ -54,7 +54,7 @@ std::vector<uint64_t> BuildHashedSet(const std::unordered_set<std::vector<uint8_
 }
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(golomb_rice)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     std::vector<uint8_t> golomb_rice_data;
diff --git a/src/test/fuzz/hex.cpp b/src/test/fuzz/hex.cpp
index 6a8699fd0f..cc1bc1c8cf 100644
--- a/src/test/fuzz/hex.cpp
+++ b/src/test/fuzz/hex.cpp
@@ -16,12 +16,12 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_hex()
 {
     static const ECCVerifyHandle verify_handle;
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(hex, initialize_hex)
 {
     const std::string random_hex_string(buffer.begin(), buffer.end());
     const std::vector<unsigned char> data = ParseHex(random_hex_string);
diff --git a/src/test/fuzz/http_request.cpp b/src/test/fuzz/http_request.cpp
index 36d44e361f..e3b62032bc 100644
--- a/src/test/fuzz/http_request.cpp
+++ b/src/test/fuzz/http_request.cpp
@@ -39,7 +39,7 @@ extern "C" int evhttp_parse_headers_(struct evhttp_request*, struct evbuffer*);
 
 std::string RequestMethodString(HTTPRequest::RequestMethod m);
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(http_request)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     evhttp_request* evreq = evhttp_request_new(nullptr, nullptr);
diff --git a/src/test/fuzz/integer.cpp b/src/test/fuzz/integer.cpp
index 35d6804d4f..ac83d91ea0 100644
--- a/src/test/fuzz/integer.cpp
+++ b/src/test/fuzz/integer.cpp
@@ -40,12 +40,12 @@
 #include <set>
 #include <vector>
 
-void initialize()
+void initialize_integer()
 {
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(integer, initialize_integer)
 {
     if (buffer.size() < sizeof(uint256) + sizeof(uint160)) {
         return;
diff --git a/src/test/fuzz/key.cpp b/src/test/fuzz/key.cpp
index 955b954700..aa8f826e4a 100644
--- a/src/test/fuzz/key.cpp
+++ b/src/test/fuzz/key.cpp
@@ -26,14 +26,14 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_key()
 {
     static const ECCVerifyHandle ecc_verify_handle;
     ECC_Start();
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(key, initialize_key)
 {
     const CKey key = [&] {
         CKey k;
diff --git a/src/test/fuzz/key_io.cpp b/src/test/fuzz/key_io.cpp
index 62aefb650d..665ca01fa1 100644
--- a/src/test/fuzz/key_io.cpp
+++ b/src/test/fuzz/key_io.cpp
@@ -14,14 +14,14 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_key_io()
 {
     static const ECCVerifyHandle verify_handle;
     ECC_Start();
     SelectParams(CBaseChainParams::MAIN);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(key_io, initialize_key_io)
 {
     const std::string random_string(buffer.begin(), buffer.end());
 
diff --git a/src/test/fuzz/kitchen_sink.cpp b/src/test/fuzz/kitchen_sink.cpp
index 82cbc00a3a..0656ddc547 100644
--- a/src/test/fuzz/kitchen_sink.cpp
+++ b/src/test/fuzz/kitchen_sink.cpp
@@ -15,7 +15,7 @@
 // The fuzzing kitchen sink: Fuzzing harness for functions that need to be
 // fuzzed but a.) don't belong in any existing fuzzing harness file, and
 // b.) are not important enough to warrant their own fuzzing harness file.
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(kitchen_sink)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/load_external_block_file.cpp b/src/test/fuzz/load_external_block_file.cpp
index d9de9d9866..c428a86631 100644
--- a/src/test/fuzz/load_external_block_file.cpp
+++ b/src/test/fuzz/load_external_block_file.cpp
@@ -13,12 +13,12 @@
 #include <cstdint>
 #include <vector>
 
-void initialize()
+void initialize_load_external_block_file()
 {
     InitializeFuzzingContext();
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(load_external_block_file, initialize_load_external_block_file)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     FuzzedFileProvider fuzzed_file_provider = ConsumeFile(fuzzed_data_provider);
diff --git a/src/test/fuzz/locale.cpp b/src/test/fuzz/locale.cpp
index 2b181c6da1..5b1acae57b 100644
--- a/src/test/fuzz/locale.cpp
+++ b/src/test/fuzz/locale.cpp
@@ -35,7 +35,7 @@ bool IsAvailableLocale(const std::string& locale_identifier)
 }
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(locale)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::string locale_identifier = ConsumeLocaleIdentifier(fuzzed_data_provider);
diff --git a/src/test/fuzz/merkleblock.cpp b/src/test/fuzz/merkleblock.cpp
index 4710e75757..15bcfab3ad 100644
--- a/src/test/fuzz/merkleblock.cpp
+++ b/src/test/fuzz/merkleblock.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(merkleblock)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     CPartialMerkleTree partial_merkle_tree;
diff --git a/src/test/fuzz/message.cpp b/src/test/fuzz/message.cpp
index fa0322a391..06cd0afe2a 100644
--- a/src/test/fuzz/message.cpp
+++ b/src/test/fuzz/message.cpp
@@ -16,14 +16,14 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_message()
 {
     static const ECCVerifyHandle ecc_verify_handle;
     ECC_Start();
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(message, initialize_message)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::string random_message = fuzzed_data_provider.ConsumeRandomLengthString(1024);
diff --git a/src/test/fuzz/multiplication_overflow.cpp b/src/test/fuzz/multiplication_overflow.cpp
index 08dc660a19..0f054529a6 100644
--- a/src/test/fuzz/multiplication_overflow.cpp
+++ b/src/test/fuzz/multiplication_overflow.cpp
@@ -40,7 +40,7 @@ void TestMultiplicationOverflow(FuzzedDataProvider& fuzzed_data_provider)
 }
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(multiplication_overflow)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     TestMultiplicationOverflow<int64_t>(fuzzed_data_provider);
diff --git a/src/test/fuzz/net.cpp b/src/test/fuzz/net.cpp
index 8b25eb3397..66d7c512e4 100644
--- a/src/test/fuzz/net.cpp
+++ b/src/test/fuzz/net.cpp
@@ -19,12 +19,12 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_net()
 {
     static const BasicTestingSetup basic_testing_setup;
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(net, initialize_net)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     SetMockTime(ConsumeTime(fuzzed_data_provider));
diff --git a/src/test/fuzz/net_permissions.cpp b/src/test/fuzz/net_permissions.cpp
index 8a674ac1e9..3620e16d30 100644
--- a/src/test/fuzz/net_permissions.cpp
+++ b/src/test/fuzz/net_permissions.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(net_permissions)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::string s = fuzzed_data_provider.ConsumeRandomLengthString(32);
diff --git a/src/test/fuzz/netaddress.cpp b/src/test/fuzz/netaddress.cpp
index 8252f38726..6e9bb47ff6 100644
--- a/src/test/fuzz/netaddress.cpp
+++ b/src/test/fuzz/netaddress.cpp
@@ -12,7 +12,7 @@
 #include <netinet/in.h>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(netaddress)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/p2p_transport_deserializer.cpp b/src/test/fuzz/p2p_transport_deserializer.cpp
index 7a6236efac..6ba75309c8 100644
--- a/src/test/fuzz/p2p_transport_deserializer.cpp
+++ b/src/test/fuzz/p2p_transport_deserializer.cpp
@@ -12,12 +12,12 @@
 #include <limits>
 #include <vector>
 
-void initialize()
+void initialize_p2p_transport_deserializer()
 {
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(p2p_transport_deserializer, initialize_p2p_transport_deserializer)
 {
     // Construct deserializer, with a dummy NodeId
     V1TransportDeserializer deserializer{Params(), (NodeId)0, SER_NETWORK, INIT_PROTO_VERSION};
diff --git a/src/test/fuzz/parse_hd_keypath.cpp b/src/test/fuzz/parse_hd_keypath.cpp
index f668ca8c48..7d0d5643bf 100644
--- a/src/test/fuzz/parse_hd_keypath.cpp
+++ b/src/test/fuzz/parse_hd_keypath.cpp
@@ -10,7 +10,7 @@
 #include <cstdint>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(parse_hd_keypath)
 {
     const std::string keypath_str(buffer.begin(), buffer.end());
     std::vector<uint32_t> keypath;
diff --git a/src/test/fuzz/parse_iso8601.cpp b/src/test/fuzz/parse_iso8601.cpp
index c86f8a853e..4d5fa70dfa 100644
--- a/src/test/fuzz/parse_iso8601.cpp
+++ b/src/test/fuzz/parse_iso8601.cpp
@@ -11,7 +11,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(parse_iso8601)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/parse_numbers.cpp b/src/test/fuzz/parse_numbers.cpp
index 59f89dc9fb..89d9be392e 100644
--- a/src/test/fuzz/parse_numbers.cpp
+++ b/src/test/fuzz/parse_numbers.cpp
@@ -8,7 +8,7 @@
 
 #include <string>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(parse_numbers)
 {
     const std::string random_string(buffer.begin(), buffer.end());
 
diff --git a/src/test/fuzz/parse_script.cpp b/src/test/fuzz/parse_script.cpp
index 21ac1aecf3..1382afbc2c 100644
--- a/src/test/fuzz/parse_script.cpp
+++ b/src/test/fuzz/parse_script.cpp
@@ -6,7 +6,7 @@
 #include <script/script.h>
 #include <test/fuzz/fuzz.h>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(parse_script)
 {
     const std::string script_string(buffer.begin(), buffer.end());
     try {
diff --git a/src/test/fuzz/parse_univalue.cpp b/src/test/fuzz/parse_univalue.cpp
index a269378607..afe382ba21 100644
--- a/src/test/fuzz/parse_univalue.cpp
+++ b/src/test/fuzz/parse_univalue.cpp
@@ -12,13 +12,13 @@
 #include <limits>
 #include <string>
 
-void initialize()
+void initialize_parse_univalue()
 {
     static const ECCVerifyHandle verify_handle;
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(parse_univalue, initialize_parse_univalue)
 {
     const std::string random_string(buffer.begin(), buffer.end());
     bool valid = true;
diff --git a/src/test/fuzz/policy_estimator.cpp b/src/test/fuzz/policy_estimator.cpp
index 6c94a47f3c..8a17a4b51b 100644
--- a/src/test/fuzz/policy_estimator.cpp
+++ b/src/test/fuzz/policy_estimator.cpp
@@ -14,12 +14,12 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_policy_estimator()
 {
     InitializeFuzzingContext();
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(policy_estimator, initialize_policy_estimator)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     CBlockPolicyEstimator block_policy_estimator;
diff --git a/src/test/fuzz/policy_estimator_io.cpp b/src/test/fuzz/policy_estimator_io.cpp
index 0edcf201c7..8fa52143d8 100644
--- a/src/test/fuzz/policy_estimator_io.cpp
+++ b/src/test/fuzz/policy_estimator_io.cpp
@@ -10,12 +10,12 @@
 #include <cstdint>
 #include <vector>
 
-void initialize()
+void initialize_policy_estimator_io()
 {
     InitializeFuzzingContext();
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(policy_estimator_io, initialize_policy_estimator_io)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     FuzzedAutoFileProvider fuzzed_auto_file_provider = ConsumeAutoFile(fuzzed_data_provider);
diff --git a/src/test/fuzz/pow.cpp b/src/test/fuzz/pow.cpp
index b7fc72373d..02beb6eb37 100644
--- a/src/test/fuzz/pow.cpp
+++ b/src/test/fuzz/pow.cpp
@@ -15,12 +15,12 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_pow()
 {
     SelectParams(CBaseChainParams::MAIN);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(pow, initialize_pow)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const Consensus::Params& consensus_params = Params().GetConsensus();
diff --git a/src/test/fuzz/prevector.cpp b/src/test/fuzz/prevector.cpp
index 626e187cbd..51956bbe9e 100644
--- a/src/test/fuzz/prevector.cpp
+++ b/src/test/fuzz/prevector.cpp
@@ -204,7 +204,7 @@ public:
 
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(prevector)
 {
     FuzzedDataProvider prov(buffer.data(), buffer.size());
     prevector_tester<8, int> test;
diff --git a/src/test/fuzz/primitives_transaction.cpp b/src/test/fuzz/primitives_transaction.cpp
index 4a0f920f58..48815c8910 100644
--- a/src/test/fuzz/primitives_transaction.cpp
+++ b/src/test/fuzz/primitives_transaction.cpp
@@ -12,7 +12,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(primitives_transaction)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const CScript script = ConsumeScript(fuzzed_data_provider);
diff --git a/src/test/fuzz/process_message.cpp b/src/test/fuzz/process_message.cpp
index 9390399878..01de8bdbb5 100644
--- a/src/test/fuzz/process_message.cpp
+++ b/src/test/fuzz/process_message.cpp
@@ -32,19 +32,10 @@
 #include <vector>
 
 namespace {
-
-#ifdef MESSAGE_TYPE
-#define TO_STRING_(s) #s
-#define TO_STRING(s) TO_STRING_(s)
-const std::string LIMIT_TO_MESSAGE_TYPE{TO_STRING(MESSAGE_TYPE)};
-#else
-const std::string LIMIT_TO_MESSAGE_TYPE;
-#endif
-
 const TestingSetup* g_setup;
 } // namespace
 
-void initialize()
+void initialize_process_message()
 {
     static TestingSetup setup{
         CBaseChainParams::REGTEST,
@@ -60,7 +51,7 @@ void initialize()
     SyncWithValidationInterfaceQueue();
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+void fuzz_target(const std::vector<uint8_t>& buffer, const std::string& LIMIT_TO_MESSAGE_TYPE)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     ConnmanTestMsg& connman = *(ConnmanTestMsg*)g_setup->m_node.connman.get();
@@ -88,3 +79,29 @@ void test_one_input(const std::vector<uint8_t>& buffer)
     LOCK2(::cs_main, g_cs_orphans); // See init.cpp for rationale for implicit locking order requirement
     g_setup->m_node.connman->StopNodes();
 }
+
+FUZZ_TARGET_INIT(process_message, initialize_process_message) { fuzz_target(buffer, ""); }
+FUZZ_TARGET_INIT(process_message_addr, initialize_process_message) { fuzz_target(buffer, "addr"); }
+FUZZ_TARGET_INIT(process_message_block, initialize_process_message) { fuzz_target(buffer, "block"); }
+FUZZ_TARGET_INIT(process_message_blocktxn, initialize_process_message) { fuzz_target(buffer, "blocktxn"); }
+FUZZ_TARGET_INIT(process_message_cmpctblock, initialize_process_message) { fuzz_target(buffer, "cmpctblock"); }
+FUZZ_TARGET_INIT(process_message_feefilter, initialize_process_message) { fuzz_target(buffer, "feefilter"); }
+FUZZ_TARGET_INIT(process_message_filteradd, initialize_process_message) { fuzz_target(buffer, "filteradd"); }
+FUZZ_TARGET_INIT(process_message_filterclear, initialize_process_message) { fuzz_target(buffer, "filterclear"); }
+FUZZ_TARGET_INIT(process_message_filterload, initialize_process_message) { fuzz_target(buffer, "filterload"); }
+FUZZ_TARGET_INIT(process_message_getaddr, initialize_process_message) { fuzz_target(buffer, "getaddr"); }
+FUZZ_TARGET_INIT(process_message_getblocks, initialize_process_message) { fuzz_target(buffer, "getblocks"); }
+FUZZ_TARGET_INIT(process_message_getblocktxn, initialize_process_message) { fuzz_target(buffer, "getblocktxn"); }
+FUZZ_TARGET_INIT(process_message_getdata, initialize_process_message) { fuzz_target(buffer, "getdata"); }
+FUZZ_TARGET_INIT(process_message_getheaders, initialize_process_message) { fuzz_target(buffer, "getheaders"); }
+FUZZ_TARGET_INIT(process_message_headers, initialize_process_message) { fuzz_target(buffer, "headers"); }
+FUZZ_TARGET_INIT(process_message_inv, initialize_process_message) { fuzz_target(buffer, "inv"); }
+FUZZ_TARGET_INIT(process_message_mempool, initialize_process_message) { fuzz_target(buffer, "mempool"); }
+FUZZ_TARGET_INIT(process_message_notfound, initialize_process_message) { fuzz_target(buffer, "notfound"); }
+FUZZ_TARGET_INIT(process_message_ping, initialize_process_message) { fuzz_target(buffer, "ping"); }
+FUZZ_TARGET_INIT(process_message_pong, initialize_process_message) { fuzz_target(buffer, "pong"); }
+FUZZ_TARGET_INIT(process_message_sendcmpct, initialize_process_message) { fuzz_target(buffer, "sendcmpct"); }
+FUZZ_TARGET_INIT(process_message_sendheaders, initialize_process_message) { fuzz_target(buffer, "sendheaders"); }
+FUZZ_TARGET_INIT(process_message_tx, initialize_process_message) { fuzz_target(buffer, "tx"); }
+FUZZ_TARGET_INIT(process_message_verack, initialize_process_message) { fuzz_target(buffer, "verack"); }
+FUZZ_TARGET_INIT(process_message_version, initialize_process_message) { fuzz_target(buffer, "version"); }
diff --git a/src/test/fuzz/process_messages.cpp b/src/test/fuzz/process_messages.cpp
index 19ea92b750..e12e780a18 100644
--- a/src/test/fuzz/process_messages.cpp
+++ b/src/test/fuzz/process_messages.cpp
@@ -19,7 +19,7 @@
 
 const TestingSetup* g_setup;
 
-void initialize()
+void initialize_process_messages()
 {
     static TestingSetup setup{
         CBaseChainParams::REGTEST,
@@ -35,7 +35,7 @@ void initialize()
     SyncWithValidationInterfaceQueue();
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(process_messages, initialize_process_messages)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/protocol.cpp b/src/test/fuzz/protocol.cpp
index 78df0f89e7..572181366b 100644
--- a/src/test/fuzz/protocol.cpp
+++ b/src/test/fuzz/protocol.cpp
@@ -12,7 +12,7 @@
 #include <stdexcept>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(protocol)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::optional<CInv> inv = ConsumeDeserializable<CInv>(fuzzed_data_provider);
diff --git a/src/test/fuzz/psbt.cpp b/src/test/fuzz/psbt.cpp
index 908e2b16f2..0b4588c4ce 100644
--- a/src/test/fuzz/psbt.cpp
+++ b/src/test/fuzz/psbt.cpp
@@ -17,12 +17,12 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_psbt()
 {
     static const ECCVerifyHandle verify_handle;
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(psbt, initialize_psbt)
 {
     PartiallySignedTransaction psbt_mut;
     const std::string raw_psbt{buffer.begin(), buffer.end()};
diff --git a/src/test/fuzz/random.cpp b/src/test/fuzz/random.cpp
index 7df6594ad6..96668734fd 100644
--- a/src/test/fuzz/random.cpp
+++ b/src/test/fuzz/random.cpp
@@ -12,7 +12,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(random)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     FastRandomContext fast_random_context{ConsumeUInt256(fuzzed_data_provider)};
diff --git a/src/test/fuzz/rbf.cpp b/src/test/fuzz/rbf.cpp
index 58167c394c..26c89a70c3 100644
--- a/src/test/fuzz/rbf.cpp
+++ b/src/test/fuzz/rbf.cpp
@@ -15,7 +15,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(rbf)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     SetMockTime(ConsumeTime(fuzzed_data_provider));
diff --git a/src/test/fuzz/rolling_bloom_filter.cpp b/src/test/fuzz/rolling_bloom_filter.cpp
index 623b8cff3a..6087ee964a 100644
--- a/src/test/fuzz/rolling_bloom_filter.cpp
+++ b/src/test/fuzz/rolling_bloom_filter.cpp
@@ -14,7 +14,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(rolling_bloom_filter)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/script.cpp b/src/test/fuzz/script.cpp
index 4274fa4351..892af655f6 100644
--- a/src/test/fuzz/script.cpp
+++ b/src/test/fuzz/script.cpp
@@ -29,7 +29,7 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_script()
 {
     // Fuzzers using pubkey must hold an ECCVerifyHandle.
     static const ECCVerifyHandle verify_handle;
@@ -37,7 +37,7 @@ void initialize()
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(script, initialize_script)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::optional<CScript> script_opt = ConsumeDeserializable<CScript>(fuzzed_data_provider);
diff --git a/src/test/fuzz/script_assets_test_minimizer.cpp b/src/test/fuzz/script_assets_test_minimizer.cpp
index d20fa43d68..2091ad5d91 100644
--- a/src/test/fuzz/script_assets_test_minimizer.cpp
+++ b/src/test/fuzz/script_assets_test_minimizer.cpp
@@ -188,9 +188,9 @@ void Test(const std::string& str)
 
 ECCVerifyHandle handle;
 
-}
+} // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(script_assets_test_minimizer)
 {
     if (buffer.size() < 2 || buffer.back() != '\n' || buffer[buffer.size() - 2] != ',') return;
     const std::string str((const char*)buffer.data(), buffer.size() - 2);
diff --git a/src/test/fuzz/script_bitcoin_consensus.cpp b/src/test/fuzz/script_bitcoin_consensus.cpp
index 22f4b4f44a..fcd66b234e 100644
--- a/src/test/fuzz/script_bitcoin_consensus.cpp
+++ b/src/test/fuzz/script_bitcoin_consensus.cpp
@@ -12,7 +12,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(script_bitcoin_consensus)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::vector<uint8_t> random_bytes_1 = ConsumeRandomLengthByteVector(fuzzed_data_provider);
diff --git a/src/test/fuzz/script_descriptor_cache.cpp b/src/test/fuzz/script_descriptor_cache.cpp
index 4bfe61cec7..1c62c018e7 100644
--- a/src/test/fuzz/script_descriptor_cache.cpp
+++ b/src/test/fuzz/script_descriptor_cache.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(script_descriptor_cache)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     DescriptorCache descriptor_cache;
diff --git a/src/test/fuzz/script_flags.cpp b/src/test/fuzz/script_flags.cpp
index 300c78fca0..ce8915ca2c 100644
--- a/src/test/fuzz/script_flags.cpp
+++ b/src/test/fuzz/script_flags.cpp
@@ -13,12 +13,12 @@
 /** Flags that are not forbidden by an assert */
 static bool IsValidFlagCombination(unsigned flags);
 
-void initialize()
+void initialize_script_flags()
 {
     static const ECCVerifyHandle verify_handle;
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(script_flags, initialize_script_flags)
 {
     CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
     try {
diff --git a/src/test/fuzz/script_interpreter.cpp b/src/test/fuzz/script_interpreter.cpp
index 26d5732f24..5d59771682 100644
--- a/src/test/fuzz/script_interpreter.cpp
+++ b/src/test/fuzz/script_interpreter.cpp
@@ -15,7 +15,7 @@
 
 bool CastToBool(const std::vector<unsigned char>& vch);
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(script_interpreter)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     {
diff --git a/src/test/fuzz/script_ops.cpp b/src/test/fuzz/script_ops.cpp
index 7d24af20ac..d232e984bc 100644
--- a/src/test/fuzz/script_ops.cpp
+++ b/src/test/fuzz/script_ops.cpp
@@ -11,7 +11,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(script_ops)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     CScript script = ConsumeScript(fuzzed_data_provider);
diff --git a/src/test/fuzz/script_sigcache.cpp b/src/test/fuzz/script_sigcache.cpp
index d67654bde3..f7e45d6889 100644
--- a/src/test/fuzz/script_sigcache.cpp
+++ b/src/test/fuzz/script_sigcache.cpp
@@ -16,7 +16,7 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_script_sigcache()
 {
     static const ECCVerifyHandle ecc_verify_handle;
     ECC_Start();
@@ -24,7 +24,7 @@ void initialize()
     InitSignatureCache();
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(script_sigcache, initialize_script_sigcache)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/script_sign.cpp b/src/test/fuzz/script_sign.cpp
index c626f950e7..fe850a6959 100644
--- a/src/test/fuzz/script_sign.cpp
+++ b/src/test/fuzz/script_sign.cpp
@@ -22,14 +22,14 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_script_sign()
 {
     static const ECCVerifyHandle ecc_verify_handle;
     ECC_Start();
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(script_sign, initialize_script_sign)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::vector<uint8_t> key = ConsumeRandomLengthByteVector(fuzzed_data_provider, 128);
diff --git a/src/test/fuzz/scriptnum_ops.cpp b/src/test/fuzz/scriptnum_ops.cpp
index 68c1ae58ca..650318f13c 100644
--- a/src/test/fuzz/scriptnum_ops.cpp
+++ b/src/test/fuzz/scriptnum_ops.cpp
@@ -24,7 +24,7 @@ bool IsValidSubtraction(const CScriptNum& lhs, const CScriptNum& rhs)
 }
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(scriptnum_ops)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     CScriptNum script_num = ConsumeScriptNum(fuzzed_data_provider);
diff --git a/src/test/fuzz/secp256k1_ec_seckey_import_export_der.cpp b/src/test/fuzz/secp256k1_ec_seckey_import_export_der.cpp
index d4f302a8d3..0435626356 100644
--- a/src/test/fuzz/secp256k1_ec_seckey_import_export_der.cpp
+++ b/src/test/fuzz/secp256k1_ec_seckey_import_export_der.cpp
@@ -14,7 +14,7 @@
 int ec_seckey_import_der(const secp256k1_context* ctx, unsigned char* out32, const unsigned char* seckey, size_t seckeylen);
 int ec_seckey_export_der(const secp256k1_context* ctx, unsigned char* seckey, size_t* seckeylen, const unsigned char* key32, bool compressed);
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(secp256k1_ec_seckey_import_export_der)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     secp256k1_context* secp256k1_context_sign = secp256k1_context_create(SECP256K1_CONTEXT_SIGN);
diff --git a/src/test/fuzz/secp256k1_ecdsa_signature_parse_der_lax.cpp b/src/test/fuzz/secp256k1_ecdsa_signature_parse_der_lax.cpp
index ed8c7aba89..f437d53b57 100644
--- a/src/test/fuzz/secp256k1_ecdsa_signature_parse_der_lax.cpp
+++ b/src/test/fuzz/secp256k1_ecdsa_signature_parse_der_lax.cpp
@@ -14,7 +14,7 @@
 bool SigHasLowR(const secp256k1_ecdsa_signature* sig);
 int ecdsa_signature_parse_der_lax(const secp256k1_context* ctx, secp256k1_ecdsa_signature* sig, const unsigned char* input, size_t inputlen);
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(secp256k1_ecdsa_signature_parse_der_lax)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     const std::vector<uint8_t> signature_bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider);
diff --git a/src/test/fuzz/signature_checker.cpp b/src/test/fuzz/signature_checker.cpp
index 970452dbcc..3e7b72805e 100644
--- a/src/test/fuzz/signature_checker.cpp
+++ b/src/test/fuzz/signature_checker.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_signature_checker()
 {
     static const auto verify_handle = MakeUnique<ECCVerifyHandle>();
 }
@@ -52,7 +52,7 @@ public:
 };
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(signature_checker, initialize_signature_checker)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const unsigned int flags = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
diff --git a/src/test/fuzz/signet.cpp b/src/test/fuzz/signet.cpp
index 786f1a83fe..541322d484 100644
--- a/src/test/fuzz/signet.cpp
+++ b/src/test/fuzz/signet.cpp
@@ -15,12 +15,12 @@
 #include <optional>
 #include <vector>
 
-void initialize()
+void initialize_signet()
 {
     InitializeFuzzingContext(CBaseChainParams::SIGNET);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(signet, initialize_signet)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     const std::optional<CBlock> block = ConsumeDeserializable<CBlock>(fuzzed_data_provider);
diff --git a/src/test/fuzz/span.cpp b/src/test/fuzz/span.cpp
index f6b6e8f6f0..8f753948df 100644
--- a/src/test/fuzz/span.cpp
+++ b/src/test/fuzz/span.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(span)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
 
diff --git a/src/test/fuzz/spanparsing.cpp b/src/test/fuzz/spanparsing.cpp
index e5bf5dd608..293a7e7e90 100644
--- a/src/test/fuzz/spanparsing.cpp
+++ b/src/test/fuzz/spanparsing.cpp
@@ -6,7 +6,7 @@
 #include <test/fuzz/fuzz.h>
 #include <util/spanparsing.h>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(spanparsing)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const size_t query_size = fuzzed_data_provider.ConsumeIntegral<size_t>();
diff --git a/src/test/fuzz/string.cpp b/src/test/fuzz/string.cpp
index 271062dc95..282a2cd8ca 100644
--- a/src/test/fuzz/string.cpp
+++ b/src/test/fuzz/string.cpp
@@ -33,7 +33,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(string)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::string random_string_1 = fuzzed_data_provider.ConsumeRandomLengthString(32);
diff --git a/src/test/fuzz/strprintf.cpp b/src/test/fuzz/strprintf.cpp
index 29064bc45c..4af0e750ce 100644
--- a/src/test/fuzz/strprintf.cpp
+++ b/src/test/fuzz/strprintf.cpp
@@ -13,7 +13,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(str_printf)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const std::string format_string = fuzzed_data_provider.ConsumeRandomLengthString(64);
diff --git a/src/test/fuzz/system.cpp b/src/test/fuzz/system.cpp
index 01b523cee4..375a8c1ed0 100644
--- a/src/test/fuzz/system.cpp
+++ b/src/test/fuzz/system.cpp
@@ -22,7 +22,7 @@ std::string GetArgumentName(const std::string& name)
 }
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(system)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     ArgsManager args_manager{};
diff --git a/src/test/fuzz/timedata.cpp b/src/test/fuzz/timedata.cpp
index a0e579a88f..d7fa66298a 100644
--- a/src/test/fuzz/timedata.cpp
+++ b/src/test/fuzz/timedata.cpp
@@ -11,7 +11,7 @@
 #include <string>
 #include <vector>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(timedata)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
     const unsigned int max_size = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, 1000);
diff --git a/src/test/fuzz/transaction.cpp b/src/test/fuzz/transaction.cpp
index 9e40883709..13ae450756 100644
--- a/src/test/fuzz/transaction.cpp
+++ b/src/test/fuzz/transaction.cpp
@@ -21,12 +21,12 @@
 
 #include <cassert>
 
-void initialize()
+void initialize_transaction()
 {
     SelectParams(CBaseChainParams::REGTEST);
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(transaction, initialize_transaction)
 {
     CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
     try {
diff --git a/src/test/fuzz/tx_in.cpp b/src/test/fuzz/tx_in.cpp
index 8e116537d1..dd94922b86 100644
--- a/src/test/fuzz/tx_in.cpp
+++ b/src/test/fuzz/tx_in.cpp
@@ -12,7 +12,7 @@
 
 #include <cassert>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(tx_in)
 {
     CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
     CTxIn tx_in;
diff --git a/src/test/fuzz/tx_out.cpp b/src/test/fuzz/tx_out.cpp
index aa1338d5ba..5e22c4adc5 100644
--- a/src/test/fuzz/tx_out.cpp
+++ b/src/test/fuzz/tx_out.cpp
@@ -10,7 +10,7 @@
 #include <test/fuzz/fuzz.h>
 #include <version.h>
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(tx_out)
 {
     CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
     CTxOut tx_out;
diff --git a/src/test/fuzz/txrequest.cpp b/src/test/fuzz/txrequest.cpp
index 9529ad3274..72438ff2d7 100644
--- a/src/test/fuzz/txrequest.cpp
+++ b/src/test/fuzz/txrequest.cpp
@@ -310,7 +310,7 @@ public:
 };
 } // namespace
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET(txrequest)
 {
     // Tester object (which encapsulates a TxRequestTracker).
     Tester tester;