[ruby/openssl] Remove OSSL_DEBUG compile-time option

Remove the OSSL_DEBUG flag and OpenSSL.mem_check_start which is only
compiled when the flag is given. They are meant purely for development
of Ruby/OpenSSL.

OpenSSL.mem_check_start helped us find memory leak bugs in past, but
it is no longer working with the recent OpenSSL versions. Let's just
remove it now.

https://github.com/ruby/openssl/commit/8c7a6a17e2

1 files changed, 0 insertions, 105 deletions

diff --git a/ext/openssl/ossl.c b/ext/openssl/ossl.c
index 00ed7c0c23..00eded55cb 100644
--- a/ext/openssl/ossl.c
+++ b/ext/openssl/ossl.c
@@ -463,75 +463,6 @@ ossl_fips_mode_set(VALUE self, VALUE enabled)
 #endif
 }
 
-#if defined(OSSL_DEBUG)
-#if !defined(LIBRESSL_VERSION_NUMBER) && \
-    (OPENSSL_VERSION_NUMBER >= 0x10100000 && !defined(OPENSSL_NO_CRYPTO_MDEBUG) || \
-     defined(CRYPTO_malloc_debug_init))
-/*
- * call-seq:
- *   OpenSSL.mem_check_start -> nil
- *
- * Calls CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON). Starts tracking memory
- * allocations. See also OpenSSL.print_mem_leaks.
- *
- * This is available only when built with a capable OpenSSL and --enable-debug
- * configure option.
- */
-static VALUE
-mem_check_start(VALUE self)
-{
-	CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
-	return Qnil;
-}
-
-/*
- * call-seq:
- *   OpenSSL.print_mem_leaks -> true | false
- *
- * For debugging the Ruby/OpenSSL library. Calls CRYPTO_mem_leaks_fp(stderr).
- * Prints detected memory leaks to standard error. This cleans the global state
- * up thus you cannot use any methods of the library after calling this.
- *
- * Returns +true+ if leaks detected, +false+ otherwise.
- *
- * This is available only when built with a capable OpenSSL and --enable-debug
- * configure option.
- *
- * === Example
- *   OpenSSL.mem_check_start
- *   NOT_GCED = OpenSSL::PKey::RSA.new(256)
- *
- *   END {
- *     GC.start
- *     OpenSSL.print_mem_leaks # will print the leakage
- *   }
- */
-static VALUE
-print_mem_leaks(VALUE self)
-{
-#if OPENSSL_VERSION_NUMBER >= 0x10100000
-    int ret;
-#endif
-
-#ifndef HAVE_RB_EXT_RACTOR_SAFE
-    // for Ruby 2.x
-    void ossl_bn_ctx_free(void); // ossl_bn.c
-    ossl_bn_ctx_free();
-#endif
-
-#if OPENSSL_VERSION_NUMBER >= 0x10100000
-    ret = CRYPTO_mem_leaks_fp(stderr);
-    if (ret < 0)
-	ossl_raise(eOSSLError, "CRYPTO_mem_leaks_fp");
-    return ret ? Qfalse : Qtrue;
-#else
-    CRYPTO_mem_leaks_fp(stderr);
-    return Qnil;
-#endif
-}
-#endif
-#endif
-
 #if !defined(HAVE_OPENSSL_110_THREADING_API)
 /**
  * Stores locks needed for OpenSSL thread safety
@@ -1239,40 +1170,4 @@ Init_openssl(void)
     Init_ossl_provider();
     Init_ossl_asn1();
     Init_ossl_kdf();
-
-#if defined(OSSL_DEBUG)
-    /*
-     * For debugging Ruby/OpenSSL. Enable only when built with --enable-debug
-     */
-#if !defined(LIBRESSL_VERSION_NUMBER) && \
-    (OPENSSL_VERSION_NUMBER >= 0x10100000 && !defined(OPENSSL_NO_CRYPTO_MDEBUG) || \
-     defined(CRYPTO_malloc_debug_init))
-    rb_define_module_function(mOSSL, "mem_check_start", mem_check_start, 0);
-    rb_define_module_function(mOSSL, "print_mem_leaks", print_mem_leaks, 0);
-
-#if defined(CRYPTO_malloc_debug_init) /* <= 1.0.2 */
-    CRYPTO_malloc_debug_init();
-#endif
-
-#if defined(V_CRYPTO_MDEBUG_ALL) /* <= 1.0.2 */
-    CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
-#endif
-
-#if OPENSSL_VERSION_NUMBER < 0x10100000 /* <= 1.0.2 */
-    {
-	int i;
-	/*
-	 * See crypto/ex_data.c; call def_get_class() immediately to avoid
-	 * allocations. 15 is the maximum number that is used as the class index
-	 * in OpenSSL 1.0.2.
-	 */
-	for (i = 0; i <= 15; i++) {
-	    if (CRYPTO_get_ex_new_index(i, 0, (void *)"ossl-mdebug-dummy", 0, 0, 0) < 0)
-		rb_raise(rb_eRuntimeError, "CRYPTO_get_ex_new_index for "
-			 "class index %d failed", i);
-	}
-    }
-#endif
-#endif
-#endif
 }