From 32fb3618c8c2ebef7dec9326c2648c320c8ea734 Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Fri, 19 Jan 2024 08:08:13 +0000
Subject: [PATCH] bitcoin-core: Migrate to CMake

---
 projects/bitcoin-core/Dockerfile |  2 +-
 projects/bitcoin-core/build.sh   | 21 +++++++++++----------
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/projects/bitcoin-core/Dockerfile b/projects/bitcoin-core/Dockerfile
index 334085a4b452..3ab831d89a6a 100644
--- a/projects/bitcoin-core/Dockerfile
+++ b/projects/bitcoin-core/Dockerfile
@@ -23,7 +23,7 @@ RUN apt-get update && apt-get install -y \
   automake autotools-dev bsdmainutils build-essential cmake curl g++-multilib libtool make \
   patch pkg-config python3 wget zip
 
-RUN git clone --depth=1 https://github.com/bitcoin/bitcoin.git bitcoin-core
+RUN git clone --depth=1 --branch 231104-cmake-T https://github.com/hebasto/bitcoin.git bitcoin-core
 RUN git clone --depth=1 https://github.com/bitcoin-core/qa-assets bitcoin-core/assets && \
   rm -rf bitcoin-core/assets/.git  # Remove git history to save storage
 RUN git clone --depth 1 https://github.com/guidovranken/cryptofuzz
diff --git a/projects/bitcoin-core/build.sh b/projects/bitcoin-core/build.sh
index 4fbe96dde329..23088d174d30 100755
--- a/projects/bitcoin-core/build.sh
+++ b/projects/bitcoin-core/build.sh
@@ -52,19 +52,20 @@ export CPPFLAGS="-DBOOST_MULTI_INDEX_ENABLE_SAFE_MODE ${FIX_32BIT:-}"
 
 # Build the fuzz targets
 
-sed -i "s|PROVIDE_FUZZ_MAIN_FUNCTION|NEVER_PROVIDE_MAIN_FOR_OSS_FUZZ|g" "./configure.ac"
-./autogen.sh
+sed -i "s|PROVIDE_FUZZ_MAIN_FUNCTION|NEVER_PROVIDE_MAIN_FOR_OSS_FUZZ|g" "./src/test/fuzz/util/CMakeLists.txt"
+mkdir build
+cd build
 
 # OSS-Fuzz will provide CC, CXX, etc. So only set:
-# * --enable-fuzz, see https://github.com/bitcoin/bitcoin/blob/master/doc/fuzzing.md
-# * CONFIG_SITE, see https://github.com/bitcoin/bitcoin/blob/master/depends/README.md
+# * -DFUZZ=ON, see https://github.com/bitcoin/bitcoin/blob/master/doc/fuzzing.md
+# * --toolchain, see https://github.com/bitcoin/bitcoin/blob/master/depends/README.md
 if [ "$SANITIZER" = "memory" ]; then
-  CONFIG_SITE="$PWD/depends/$BUILD_TRIPLET/share/config.site" ./configure --enable-fuzz SANITIZER_LDFLAGS="$LIB_FUZZING_ENGINE" --disable-hardening --with-asm=no
+  cmake -S .. -DCMAKE_C_COMPILER="$CC" -DCMAKE_CXX_COMPILER="$CXX" --toolchain depends/${BUILD_TRIPLET}/share/toolchain.cmake -DCMAKE_BUILD_TYPE=None -DFUZZ=ON -DSANITIZER_LDFLAGS="$LIB_FUZZING_ENGINE" -DHARDENING=OFF -DASM=OFF
 else
-  CONFIG_SITE="$PWD/depends/$BUILD_TRIPLET/share/config.site" ./configure --enable-fuzz SANITIZER_LDFLAGS="$LIB_FUZZING_ENGINE"
+  cmake -S .. -DCMAKE_C_COMPILER="$CC" -DCMAKE_CXX_COMPILER="$CXX" --toolchain depends/${BUILD_TRIPLET}/share/toolchain.cmake -DCMAKE_BUILD_TYPE=None -DFUZZ=ON -DSANITIZER_LDFLAGS="$LIB_FUZZING_ENGINE"
 fi
 
-make -j$(nproc)
+cmake --build . -j$(nproc)
 
 WRITE_ALL_FUZZ_TARGETS_AND_ABORT="/tmp/a" "./src/test/fuzz/fuzz" || true
 readarray FUZZ_TARGETS < "/tmp/a"
@@ -81,7 +82,7 @@ fi
 # replace the string in the source code and re-invoke 'make'. This is slower,
 # so use the hack.
 export MAGIC_STR="b5813eee2abc9d3358151f298b75a72264ffa119d2f71ae7fefa15c4b70b4bc5b38e87e3107a730f25891ea428b2b4fabe7a84f5bfa73c79e0479e085e4ff157"
-sed -i "s|std::getenv(\"FUZZ\")|\"$MAGIC_STR\"|g" "./src/test/fuzz/fuzz.cpp"
+sed -i "s|std::getenv(\"FUZZ\")|\"$MAGIC_STR\"|g" "../src/test/fuzz/fuzz.cpp"
 make -j$(nproc)
 
 # Replace the magic string with the actual name of each fuzz target
@@ -90,11 +91,11 @@ for fuzz_target in ${FUZZ_TARGETS[@]}; do
 
   chmod +x "$OUT/$fuzz_target"
   (
-    cd assets/fuzz_seed_corpus
+    cd ../assets/fuzz_seed_corpus
     if [ -d "$fuzz_target" ]; then
       zip --recurse-paths --quiet --junk-paths "$OUT/${fuzz_target}_seed_corpus.zip" "${fuzz_target}"
     fi
   )
 done
 
-cp assets/fuzz_dicts/*.dict $OUT/
+cp ../assets/fuzz_dicts/*.dict $OUT/