From e82cc0699082716155cfa403442ab0d7b39a915d Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Fri, 29 Nov 2024 16:35:10 +0000
Subject: [PATCH] cmake: Add `fuzz_coverage` target

---
 CMakeLists.txt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ad69ce2e38db8..bb8ee7709b3ee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -428,6 +428,20 @@ if(BUILD_FOR_COVERAGE)
       DEPENDS ${PROJECT_BINARY_DIR}/total.coverage/index.html
     )
     add_dependencies(total_coverage test_bitcoin_coverage)
+  else()
+    if(NOT FUZZ_CORPORA_DIR)
+      set(FUZZ_CORPORA_DIR ${CMAKE_CURRENT_SOURCE_DIR}/qa-assets/fuzz_corpora)
+    endif()
+    add_custom_command(
+      OUTPUT ${PROJECT_BINARY_DIR}/fuzz.coverage/index.html
+      COMMAND Python3::Interpreter test/fuzz/test_runner.py ${FUZZ_CORPORA_DIR} --loglevel DEBUG
+      COMMAND llvm-profdata merge --instr ${PROFILE_DATA_DIR}/*.profraw --output ${PROFILE_DATA_DIR}/fuzz.profdata
+      COMMAND llvm-cov show -instr-profile=${PROFILE_DATA_DIR}/fuzz.profdata -object=$<TARGET_FILE:fuzz> -output-dir=${PROJECT_BINARY_DIR}/fuzz.coverage -format=html ${coverage_ignore_paths}
+      DEPENDS fuzz
+    )
+    add_custom_target(fuzz_coverage
+      DEPENDS ${PROJECT_BINARY_DIR}/fuzz.coverage/index.html
+    )
   endif()
 endif()