sig_mapping_sanity_check
ret = sig_mapping_sanity_check(sm); EG(ret, err);
ret = sig_mapping_sanity_check(ctx->sig); EG(ret, err);
ret = sig_mapping_sanity_check(ctx->sig); EG(ret, err);
ret = sig_mapping_sanity_check(sm); EG(ret, err);
ret = sig_mapping_sanity_check(ctx->sig); EG(ret, err);
ret = sig_mapping_sanity_check(ctx->sig); EG(ret, err);