diff --git a/test/functional/interface_usdt_coinselection.py b/test/functional/interface_usdt_coinselection.py
index 52cee9372a9..93acffd8318 100755
--- a/test/functional/interface_usdt_coinselection.py
+++ b/test/functional/interface_usdt_coinselection.py
@@ -176,7 +176,7 @@ class CoinSelectionTracepointTest(BitcoinTestFramework):
         ctx.enable_probe(probe="coin_selection:normal_create_tx_internal", fn_name="trace_normal_create_tx")
         ctx.enable_probe(probe="coin_selection:attempting_aps_create_tx", fn_name="trace_attempt_aps")
         ctx.enable_probe(probe="coin_selection:aps_create_tx_internal", fn_name="trace_aps_create_tx")
-        self.bpf = BPF(text=coinselection_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        self.bpf = BPF(text=coinselection_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         self.log.info("Prepare wallets")
         self.generate(self.nodes[0], 101)
diff --git a/test/functional/interface_usdt_mempool.py b/test/functional/interface_usdt_mempool.py
index a5a0ee448e9..c356d0f010c 100755
--- a/test/functional/interface_usdt_mempool.py
+++ b/test/functional/interface_usdt_mempool.py
@@ -169,7 +169,7 @@ class MempoolTracepointTest(BitcoinTestFramework):
         node = self.nodes[0]
         ctx = USDT(pid=node.process.pid)
         ctx.enable_probe(probe="mempool:added", fn_name="trace_added")
-        bpf = BPF(text=MEMPOOL_TRACEPOINTS_PROGRAM, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=MEMPOOL_TRACEPOINTS_PROGRAM, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         def handle_added_event(_, data, __):
             events.append(bpf["added_events"].event(data))
@@ -206,7 +206,7 @@ class MempoolTracepointTest(BitcoinTestFramework):
         node = self.nodes[0]
         ctx = USDT(pid=node.process.pid)
         ctx.enable_probe(probe="mempool:removed", fn_name="trace_removed")
-        bpf = BPF(text=MEMPOOL_TRACEPOINTS_PROGRAM, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=MEMPOOL_TRACEPOINTS_PROGRAM, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         def handle_removed_event(_, data, __):
             events.append(bpf["removed_events"].event(data))
@@ -252,7 +252,7 @@ class MempoolTracepointTest(BitcoinTestFramework):
         node = self.nodes[0]
         ctx = USDT(pid=node.process.pid)
         ctx.enable_probe(probe="mempool:replaced", fn_name="trace_replaced")
-        bpf = BPF(text=MEMPOOL_TRACEPOINTS_PROGRAM, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=MEMPOOL_TRACEPOINTS_PROGRAM, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         def handle_replaced_event(_, data, __):
             event = ctypes.cast(data, ctypes.POINTER(MempoolReplaced)).contents
@@ -305,7 +305,7 @@ class MempoolTracepointTest(BitcoinTestFramework):
         self.log.info("Hooking into mempool:rejected tracepoint...")
         ctx = USDT(pid=node.process.pid)
         ctx.enable_probe(probe="mempool:rejected", fn_name="trace_rejected")
-        bpf = BPF(text=MEMPOOL_TRACEPOINTS_PROGRAM, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=MEMPOOL_TRACEPOINTS_PROGRAM, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         def handle_rejected_event(_, data, __):
             events.append(bpf["rejected_events"].event(data))
diff --git a/test/functional/interface_usdt_net.py b/test/functional/interface_usdt_net.py
index b7b9d6bcfc5..d9d7ee12e09 100755
--- a/test/functional/interface_usdt_net.py
+++ b/test/functional/interface_usdt_net.py
@@ -287,7 +287,7 @@ class NetTracepointTest(BitcoinTestFramework):
                          fn_name="trace_inbound_message")
         ctx.enable_probe(probe="net:outbound_message",
                          fn_name="trace_outbound_message")
-        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         EXPECTED_INOUTBOUND_VERSION_MSG = 1
         checked_inbound_version_msg = 0
@@ -345,7 +345,7 @@ class NetTracepointTest(BitcoinTestFramework):
         ctx = USDT(pid=self.nodes[0].process.pid)
         ctx.enable_probe(probe="net:inbound_connection",
                          fn_name="trace_inbound_connection")
-        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         inbound_connections = []
         EXPECTED_INBOUND_CONNECTIONS = 2
@@ -382,7 +382,7 @@ class NetTracepointTest(BitcoinTestFramework):
         ctx = USDT(pid=self.nodes[0].process.pid)
         ctx.enable_probe(probe="net:outbound_connection",
                          fn_name="trace_outbound_connection")
-        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         # that the handle_* function succeeds.
         EXPECTED_OUTBOUND_CONNECTIONS = 2
@@ -423,7 +423,7 @@ class NetTracepointTest(BitcoinTestFramework):
         ctx = USDT(pid=self.nodes[0].process.pid)
         ctx.enable_probe(probe="net:evicted_inbound_connection",
                          fn_name="trace_evicted_inbound_connection")
-        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         EXPECTED_EVICTED_CONNECTIONS = 2
         evicted_connections = []
@@ -460,7 +460,7 @@ class NetTracepointTest(BitcoinTestFramework):
         ctx = USDT(pid=self.nodes[0].process.pid)
         ctx.enable_probe(probe="net:misbehaving_connection",
                          fn_name="trace_misbehaving_connection")
-        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         EXPECTED_MISBEHAVING_CONNECTIONS = 2
         misbehaving_connections = []
@@ -494,7 +494,7 @@ class NetTracepointTest(BitcoinTestFramework):
         ctx = USDT(pid=self.nodes[0].process.pid)
         ctx.enable_probe(probe="net:closed_connection",
                          fn_name="trace_closed_connection")
-        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=net_tracepoints_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         EXPECTED_CLOSED_CONNECTIONS = 2
         closed_connections = []
diff --git a/test/functional/interface_usdt_utxocache.py b/test/functional/interface_usdt_utxocache.py
index b28db0e3f3d..b30d0e88ac7 100755
--- a/test/functional/interface_usdt_utxocache.py
+++ b/test/functional/interface_usdt_utxocache.py
@@ -184,7 +184,7 @@ class UTXOCacheTracepointTest(BitcoinTestFramework):
         ctx = USDT(pid=self.nodes[0].process.pid)
         ctx.enable_probe(probe="utxocache:uncache",
                          fn_name="trace_utxocache_uncache")
-        bpf = BPF(text=utxocache_changes_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=utxocache_changes_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         # The handle_* function is a ctypes callback function called from C. When
         # we assert in the handle_* function, the AssertError doesn't propagate
@@ -253,7 +253,7 @@ class UTXOCacheTracepointTest(BitcoinTestFramework):
         ctx.enable_probe(probe="utxocache:add", fn_name="trace_utxocache_add")
         ctx.enable_probe(probe="utxocache:spent",
                          fn_name="trace_utxocache_spent")
-        bpf = BPF(text=utxocache_changes_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=utxocache_changes_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         # The handle_* function is a ctypes callback function called from C. When
         # we assert in the handle_* function, the AssertError doesn't propagate
@@ -353,7 +353,7 @@ class UTXOCacheTracepointTest(BitcoinTestFramework):
         ctx = USDT(pid=self.nodes[0].process.pid)
         ctx.enable_probe(probe="utxocache:flush",
                          fn_name="trace_utxocache_flush")
-        bpf = BPF(text=utxocache_flushes_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=utxocache_flushes_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         # The handle_* function is a ctypes callback function called from C. When
         # we assert in the handle_* function, the AssertError doesn't propagate
@@ -410,7 +410,7 @@ class UTXOCacheTracepointTest(BitcoinTestFramework):
         ctx = USDT(pid=self.nodes[0].process.pid)
         ctx.enable_probe(probe="utxocache:flush",
                          fn_name="trace_utxocache_flush")
-        bpf = BPF(text=utxocache_flushes_program, usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+        bpf = BPF(text=utxocache_flushes_program, usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
         bpf["utxocache_flush"].open_perf_buffer(handle_utxocache_flush)
 
         self.log.info("prune blockchain to trigger a flush for pruning")
diff --git a/test/functional/interface_usdt_validation.py b/test/functional/interface_usdt_validation.py
index 0a27e5eaefb..f7d518d8930 100755
--- a/test/functional/interface_usdt_validation.py
+++ b/test/functional/interface_usdt_validation.py
@@ -99,7 +99,7 @@ class ValidationTracepointTest(BitcoinTestFramework):
         ctx.enable_probe(probe="validation:block_connected",
                          fn_name="trace_block_connected")
         bpf = BPF(text=validation_blockconnected_program,
-                  usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
+                  usdt_contexts=[ctx], debug=0, cflags=bpf_cflags())
 
         def handle_blockconnected(_, data, __):
             event = ctypes.cast(data, ctypes.POINTER(Block)).contents