bring back the mystery stub

addisoncrump · Nov 16, 2023 · 05e3ce8 · 05e3ce8
1 parent 6ffee33
commit 05e3ce8
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/fuzzers/libafl/builder.Dockerfile b/fuzzers/libafl/builder.Dockerfile
@@ -47,4 +47,9 @@ RUN cd /libafl && \
     unset CFLAGS CXXFLAGS && \
     export LIBAFL_EDGES_MAP_SIZE=2621440 && \
     cd ./fuzzers/fuzzbench && \
-    PATH="/root/.cargo/bin/:$PATH" cargo build --profile release-fuzzbench
+    PATH="/root/.cargo/bin/:$PATH" cargo build --profile release-fuzzbench --features no_link_main
+
+# Auxiliary weak references.
+RUN cd /libafl/fuzzers/fuzzbench && \
+    clang -c stub_rt.c && \
+    ar r /stub_rt.a stub_rt.o
diff --git a/fuzzers/libafl/fuzzer.py b/fuzzers/libafl/fuzzer.py
@@ -54,7 +54,7 @@ def build():  # pylint: disable=too-many-branches,too-many-statements
     utils.append_flags('CXXFLAGS', cxxflags)
     utils.append_flags('LDFLAGS', cflags)
 
-    os.environ['FUZZER_LIB'] = ''
+    os.environ['FUZZER_LIB'] = '/stub_rt.a'
     utils.build_benchmark()