| Message ID | 20240828133823.1114-1-tamas@tklengyel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | oss-fuzz: Fix coverage runtime error | expand |
On 28/08/2024 2:38 pm, Tamas K Lengyel wrote: > The oss-fuzz infrastructure collects runtime coverage information for debugging > and fuzzing evaluation. Currently it appears broken due to missing C files. > This is because the fuzzer's Makefile only symlinks the C files from various > locations in the Xen source tree into the build folder. These symlinks however > are gone as oss-fuzz uses separate docker containers for the build and for the > run. > > Update the oss-fuzz build script to copy the required C files into the > build folder to fix this oss-fuzz specific issue. > > Signed-off-by: Tamas K Lengyel <tamas@tklengyel.com> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com> Thanks for looking into this.
diff --git a/tools/fuzz/oss-fuzz/build.sh b/tools/fuzz/oss-fuzz/build.sh index 08eeb66e4c..002d86c44f 100644 --- a/tools/fuzz/oss-fuzz/build.sh +++ b/tools/fuzz/oss-fuzz/build.sh @@ -9,3 +9,7 @@ cd xen make clang=y -C tools/include make clang=y -C tools/fuzz/x86_instruction_emulator libfuzzer-harness cp tools/fuzz/x86_instruction_emulator/libfuzzer-harness $OUT/x86_instruction_emulator + +# Runtime coverage collection requires access to source files and symlinks don't work +cp xen/lib/x86/*.c tools/fuzz/x86_instruction_emulator +cp tools/tests/x86_emulator/*.c tools/fuzz/x86_instruction_emulator
The oss-fuzz infrastructure collects runtime coverage information for debugging and fuzzing evaluation. Currently it appears broken due to missing C files. This is because the fuzzer's Makefile only symlinks the C files from various locations in the Xen source tree into the build folder. These symlinks however are gone as oss-fuzz uses separate docker containers for the build and for the run. Update the oss-fuzz build script to copy the required C files into the build folder to fix this oss-fuzz specific issue. Signed-off-by: Tamas K Lengyel <tamas@tklengyel.com> --- tools/fuzz/oss-fuzz/build.sh | 4 ++++ 1 file changed, 4 insertions(+)