Add TODO comments to remove the libsancov_cb hack

diff --git a/packaging/libFuzzer.spec b/packaging/libFuzzer.spec
index 8e8b707b06f0b7b530b112179e5d7e9437441fa6..9e370ffcc0402571b9630796a06e1ffd761da527 100644 (file)
--- a/packaging/libFuzzer.spec
+++ b/packaging/libFuzzer.spec
@@ -18,6 +18,8 @@ LibFuzzer is in-process, coverage-guided, evolutionary fuzzing engine.
 %build
 cd lib/Fuzzer
 CXX=gcc ./build.sh
+# Build a dummy lib for sancov usage
+# TODO: remove the libsancov_cb hack once __sanitizer_cov_trace_pc stub is available in GCC
 cd -
 gcc -c sancov_cb.c -o sancov_cb.o
 ar rcs libsancov_cb.a sancov_cb.o
@@ -25,6 +27,7 @@ ar rcs libsancov_cb.a sancov_cb.o
 %install
 mkdir -p %{buildroot}%{_libdir}
 cp lib/Fuzzer/libFuzzer.a %{buildroot}%{_libdir}
+# TODO: remove the libsancov_cb hack once __sanitizer_cov_trace_pc stub is available in GCC
 cp libsancov_cb.a %{buildroot}%{_libdir}
 mkdir -p %{buildroot}%{_prefix}/bin
 cp %{SOURCE1} %{SOURCE2} %{buildroot}%{_prefix}/bin
@@ -46,6 +49,7 @@ Scripts for ASan and SanCov instrumentation needed for fuzzing.
 %post -n fuzz-force-options
 # Change mode to allow all users to run gcc-force/unforce-options
 chmod a+w /usr/bin
+# TODO: remove the libsancov_cb hack once __sanitizer_cov_trace_pc stub is available in GCC
 /usr/bin/gcc-force-options -fsanitize-coverage=trace-pc -fsanitize=address -fno-common -fno-omit-frame-pointer -U_FORTIFY_SOURCE -lsancov_cb
 chmod a-w /usr/bin
 
@@ -57,4 +61,5 @@ chmod a-w /usr/bin
 %files -n fuzz-force-options
 %{_prefix}/bin/gcc-force-options
 %{_prefix}/bin/gcc-unforce-options
+# TODO: remove the libsancov_cb hack once __sanitizer_cov_trace_pc stub is available in GCC
 %{_libdir}/libsancov_cb.a