1#!/bin/sh 2# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3# 4# Copyright (c) 2021 The FreeBSD Foundation 5# All rights reserved. 6# 7# This software was developed by Konstantin Belousov <kib@FreeBSD.org> 8# under sponsorship from the FreeBSD Foundation. 9# 10# Redistribution and use in source and binary forms, with or without 11# modification, are permitted provided that the following conditions 12# are met: 13# 1. Redistributions of source code must retain the above copyright 14# notice, this list of conditions and the following disclaimer. 15# 2. Redistributions in binary form must reproduce the above copyright 16# notice, this list of conditions and the following disclaimer in the 17# documentation and/or other materials provided with the distribution. 18# 19# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29# SUCH DAMAGE. 30 31set -e 32 33${CC} -x assembler-with-cpp -DLOCORE -fPIC -nostdinc -c -m32 \ 34 -o ia32_sigtramp.pico -I. -I"${S}" -include opt_global.h \ 35 "${S}"/amd64/ia32/ia32_sigtramp.S 36 37${LD} --shared -Bsymbolic -soname="elf-vdso32.so.1" \ 38 -T "${S}"/conf/vdso_amd64_ia32.ldscript \ 39 --eh-frame-hdr --no-undefined -z rodynamic -z norelro -nmagic \ 40 --hash-style=sysv --fatal-warnings --strip-all \ 41 -o elf-vdso32.so.1 ia32_sigtramp.pico 42 43if [ "$(wc -c elf-vdso32.so.1 | ${AWK} '{print $1}')" -gt 2048 ] 44then 45 echo "elf-vdso32.so.1 too large" 1>&2 46 exit 1 47fi 48 49if [ -n "$(${ELFDUMP} -d elf-vdso32.so.1 | \ 50 ${AWK} '/DT_REL.*SZ/{print "RELOCS"}')" ] 51then 52 echo "elf-vdso32.so.1 contains runtime relocations" 1>&2 53 exit 1 54fi 55 56${CC} ${DEBUG} -x assembler-with-cpp -DLOCORE -fPIC -nostdinc -c \ 57 -o elf-vdso32.so.o -I. -I"${S}" -include opt_global.h \ 58 -DVDSO_NAME=elf_vdso32_so_1 -DVDSO_FILE=elf-vdso32.so.1 \ 59 "${S}"/tools/vdso_wrap.S 60 61${NM} -D elf-vdso32.so.1 | ${AWK} \ 62 '/__vdso_ia32_sigcode/{printf "#define VDSO_IA32_SIGCODE_OFFSET 0x%s\n",$1} 63 /__vdso_freebsd4_ia32_sigcode/{printf "#define VDSO_FREEBSD4_IA32_SIGCODE_OFFSET 0x%s\n",$1} 64 /__vdso_ia32_osigcode/{printf "#define VDSO_IA32_OSIGCODE_OFFSET 0x%s\n",$1} 65 /__vdso_lcall_tramp/{printf "#define VDSO_LCALL_TRAMP_OFFSET 0x%s\n",$1}' \ 66 >vdso_ia32_offsets.h 67