FIPS_get_core_handle
return c_thread_start(FIPS_get_core_handle(libctx), ossl_arg_thread_stop,
const OSSL_CORE_HANDLE *FIPS_get_core_handle(OSSL_LIB_CTX *ctx);
FIPS_get_core_handle(ossl_prov_ctx_get0_libctx(provctx))
c_stcbfn(c_get_libctx(FIPS_get_core_handle(libctx)), cb, cbarg);
c_indcbfn(c_get_libctx(FIPS_get_core_handle(libctx)), cb);
const OSSL_CORE_HANDLE *handle = FIPS_get_core_handle(fgbl->selftest_params.libctx);