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libssp-nonshared: Use a different implementation for __stack_chk_fail

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(From OE-Core rev: 8c4958cd53ce9265c2639dd3a90d38848edc3895)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Khem Raj 2021-06-10 19:44:35 -07:00 committed by Richard Purdie
parent 59d93693bf
commit 957bab13ef
3 changed files with 46 additions and 50 deletions
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11
meta/recipes-core/musl/libssp-nonshared.bb
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@ -2,11 +2,12 @@
# 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"
LICENSE = "BSD-3-Clause"
LIC_FILES_CHKSUM = "file://stack_chk.c;beginline=1;endline=30;md5=97e59d9deee678a9332c9ddb2ab6360d"
SECTION = "libs"
SRC_URI = "file://ssp-local.c"
# Sourced from https://github.com/intel/linux-sgx/blob/master/sdk/compiler-rt/stack_chk.c
SRC_URI = "file://stack_chk.c"
INHIBIT_DEFAULT_DEPS = "1"
@ -19,8 +20,8 @@ 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
${CC} ${CPPFLAGS} ${CFLAGS} -fPIE -c stack_chk.c -o stack_chk.o
${AR} r libssp_nonshared.a stack_chk.o
}
do_install() {
install -Dm 0644 ${B}/libssp_nonshared.a ${D}${base_libdir}/libssp_nonshared.a

45
meta/recipes-core/musl/libssp-nonshared/ssp-local.c
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@ -1,45 +0,0 @@
/* 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 ();
}

40
meta/recipes-core/musl/libssp-nonshared/stack_chk.c Normal file
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@ -0,0 +1,40 @@
/*
* Copyright (C) 2011-2021 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
extern void __attribute__((noreturn)) __stack_chk_fail(void);
void
__attribute__((noreturn))
__attribute__((visibility ("hidden")))
__stack_chk_fail_local (void)
{
__stack_chk_fail ();
}