[OE-core] [PATCH V2 1/6] libssp-nonshared: Add recipe

[Khem Raj]

On Mon, Apr 30, 2018 at 6:08 AM, Burton, Ross <ross.burton at intel.com> wrote:
> build-appliance is failing at SDK creation time:
>
>  Problem: package packagegroup-self-hosted-1.0-r13.0.noarch requires
> packagegroup-self-hosted-sdk, but none of the providers can be
> installed
>   - conflicting requests
>   - nothing provides libssp-dev needed by
> packagegroup-self-hosted-sdk-1.0-r13.0.noarch
>

we do not need libssp there, I have sent a patch to remove it from packagegroup
http://git.openembedded.org/openembedded-core-contrib/commit/?h=kraj/pu&id=03e113aedd069ea97f2f3ce96fc8337e3601732b

> Ross
>
> On 20 April 2018 at 17:33, Khem Raj <raj.khem at gmail.com> wrote:
>> libssp-nonshared is a minimal gcc runtime piece which is needed
>> on non-glibc systems which do implement libssp APIs in libc
>>
>> Signed-off-by: Khem Raj <raj.khem at gmail.com>
>> ---
>> Changes since v1:
>> - Package into staticdev package
>>
>>  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
>>
>> diff --git a/meta/recipes-core/musl/libssp-nonshared.bb b/meta/recipes-core/musl/libssp-nonshared.bb
>> new file mode 100644
>> index 0000000000..00a0a3d411
>> --- /dev/null
>> +++ b/meta/recipes-core/musl/libssp-nonshared.bb
>> @@ -0,0 +1,39 @@
>> +# Copyright (C) 2018 Khem Raj <raj.khem at gmail.com>
>> +# 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} -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
>> +<http://www.gnu.org/licenses/>.  */
>> +
>> +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 ();
>> +}
>> --
>> 2.17.0
>>
>> --
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