Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756365AbbLAOJF (ORCPT ); Tue, 1 Dec 2015 09:09:05 -0500 Received: from mail-lf0-f50.google.com ([209.85.215.50]:35614 "EHLO mail-lf0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755443AbbLAOJE (ORCPT ); Tue, 1 Dec 2015 09:09:04 -0500 From: Riku Voipio To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, Riku Voipio , Josh Triplett Subject: [PATCH v3] uselib: default depending if libc5 was used Date: Tue, 1 Dec 2015 16:08:57 +0200 Message-Id: <1448978937-8009-1-git-send-email-riku.voipio@linaro.org> X-Mailer: git-send-email 2.6.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1629 Lines: 44 uselib hasn't been used since libc5; glibc does not use it. Deprecate uselib a bit more, by making the default y only if libc5 was widely used on the plaform. This makes arm64 kernel built with defconfig slightly smaller bloat-o-meter: add/remove: 0/3 grow/shrink: 0/2 up/down: 0/-1390 (-1390) function old new delta kernel_config_data 18164 18162 -2 uselib_flags 20 - -20 padzero 216 192 -24 sys_uselib 380 - -380 load_elf_library 964 - -964 Signed-off-by: Riku Voipio Cc: Josh Triplett --- v3: only depend on IA32_EMULATION to catch X86_64 with 32bit case v2: Disable uselib on X86_64 if no 32bit support init/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/init/Kconfig b/init/Kconfig index c24b6f7..5a7f375 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -285,7 +285,7 @@ config FHANDLE config USELIB bool "uselib syscall" - default y + def_bool ALPHA || M68K || SPARC || X86_32 || IA32_EMULATION help This option enables the uselib syscall, a system call used in the dynamic linker from libc5 and earlier. glibc does not use this -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/