Call tree
LLVMFuzzerTestOneInput /src/rnp/src/fuzzing/sigimport.c linenumber=-1
  rnp_input_from_memory  linenumber=41
  rnp_ffi_create  linenumber=42
  rnp_import_signatures  linenumber=44
  rnp_buffer_destroy  linenumber=45
  rnp_input_destroy  linenumber=46
  rnp_ffi_destroy  linenumber=47
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