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Thu, 03 May 2018 08:27:07 -0700 (PDT) Received: from localhost.localdomain ([2601:646:877f:9499::52a0]) by smtp.gmail.com with ESMTPSA id 5sm21396840pfx.140.2018.05.03.08.27.06 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 03 May 2018 08:27:06 -0700 (PDT) From: Khem Raj To: openembedded-core@lists.openembedded.org Date: Thu, 3 May 2018 08:27:02 -0700 Message-Id: <20180503152702.4684-1-raj.khem@gmail.com> X-Mailer: git-send-email 2.17.0 Subject: [OE-core] [PATCH V3 01/28] libssp-nonshared: Add recipe X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: openembedded-core-bounces@lists.openembedded.org Errors-To: openembedded-core-bounces@lists.openembedded.org libssp-nonshared is a minimal gcc runtime piece which is needed on non-glibc systems which do implement libssp APIs in libc Use PIE flags to compile libssp_nonshared.a so it works with security flags on as well Signed-off-by: Khem Raj --- Changes since v1: - Compile as PIC Changes since v2: - Use -fPIE instead of -fPIC, this makes it work with poky-lsb meta/recipes-core/musl/libssp-nonshared.bb | 39 ++++++++++++++++ .../musl/libssp-nonshared/ssp-local.c | 45 +++++++++++++++++++ 2 files changed, 84 insertions(+) create mode 100644 meta/recipes-core/musl/libssp-nonshared.bb create mode 100644 meta/recipes-core/musl/libssp-nonshared/ssp-local.c -- 2.17.0 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core diff --git a/meta/recipes-core/musl/libssp-nonshared.bb b/meta/recipes-core/musl/libssp-nonshared.bb new file mode 100644 index 0000000000..458eafef52 --- /dev/null +++ b/meta/recipes-core/musl/libssp-nonshared.bb @@ -0,0 +1,39 @@ +# Copyright (C) 2018 Khem Raj +# Released under the MIT license (see COPYING.MIT for the terms) + +SUMMARY = "Minimal libssp_nonshared.a must needed for ssp to work with gcc on musl" +LICENSE = "GPL-3.0-with-GCC-exception" +LIC_FILES_CHKSUM = "file://ssp-local.c;beginline=1;endline=32;md5=c06d391208c0cfcbc541a6728ed65cc4" +SECTION = "libs" + +SRC_URI = "file://ssp-local.c" + +PATH_prepend = "${STAGING_BINDIR_TOOLCHAIN}.${STAGINGCC}:" + +INHIBIT_DEFAULT_DEPS = "1" + +STAGINGCC = "gcc-cross-initial-${TARGET_ARCH}" +STAGINGCC_class-nativesdk = "gcc-crosssdk-initial-${SDK_SYS}" + +DEPENDS = "virtual/${TARGET_PREFIX}binutils \ + virtual/${TARGET_PREFIX}gcc-initial \ +" + +do_configure[noexec] = "1" + +S = "${WORKDIR}" + +do_compile() { + ${CC} ${CPPFLAGS} ${CFLAGS} -fPIE -c ssp-local.c -o ssp-local.o + ${AR} r libssp_nonshared.a ssp-local.o +} +do_install() { + install -Dm 0644 ${B}/libssp_nonshared.a ${D}${base_libdir}/libssp_nonshared.a +} +# +# We will skip parsing for non-musl systems +# +COMPATIBLE_HOST = ".*-musl.*" +RDEPENDS_${PN}-staticdev = "" +RDEPENDS_${PN}-dev = "" +RRECOMMENDS_${PN}-dbg = "${PN}-staticdev (= ${EXTENDPKGV})" diff --git a/meta/recipes-core/musl/libssp-nonshared/ssp-local.c b/meta/recipes-core/musl/libssp-nonshared/ssp-local.c new file mode 100644 index 0000000000..8f51afa2c1 --- /dev/null +++ b/meta/recipes-core/musl/libssp-nonshared/ssp-local.c @@ -0,0 +1,45 @@ +/* Stack protector support. + Copyright (C) 2005-2018 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file into combinations with other programs, +and to distribute those combinations without any restriction coming +from the use of this file. (The General Public License restrictions +do apply in other respects; for example, they cover modification of +the file, and distribution when not linked into a combine +executable.) + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +. */ + +extern void __stack_chk_fail (void); + +/* Some targets can avoid loading a GP for calls to hidden functions. + Using this entry point may avoid the load of a GP entirely for the + function, making the overall code smaller. */ + +void +__attribute__((visibility ("hidden"))) +__stack_chk_fail_local (void) +{ + __stack_chk_fail (); +}