Changeset View
Changeset View
Standalone View
Standalone View
sys/tools/amd64_ia32_vdso.sh
- This file was added.
| #!/bin/sh | |||||
| # SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| # | |||||
| # Copyright (c) 2021 The FreeBSD Foundation | |||||
| # All rights reserved. | |||||
| # | |||||
| # This software was developed by Konstantin Belousov <kib@FreeBSD.org> | |||||
| # under sponsorship from the FreeBSD Foundation. | |||||
| # | |||||
| # Redistribution and use in source and binary forms, with or without | |||||
| # modification, are permitted provided that the following conditions | |||||
| # are met: | |||||
| # 1. Redistributions of source code must retain the above copyright | |||||
| # notice, this list of conditions and the following disclaimer. | |||||
| # 2. 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. | |||||
| # | |||||
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. | |||||
| set -e | |||||
| ${CC} -x assembler-with-cpp -DLOCORE -fPIC -nostdinc -c -m32 \ | |||||
| -o ia32_sigtramp.pico -I. -I"${S}" -include opt_global.h \ | |||||
| "${S}"/amd64/ia32/ia32_sigtramp.S | |||||
| ${LD} --shared -Bsymbolic -soname="elf-vdso32.so.1" \ | |||||
| -T "${S}"/conf/vdso_amd64_ia32.ldscript \ | |||||
| --eh-frame-hdr --no-undefined -z rodynamic -z norelro -nmagic \ | |||||
| --hash-style=sysv --fatal-warnings --strip-all \ | |||||
| -o elf-vdso32.so.1 ia32_sigtramp.pico | |||||
| if [ "$(wc -c elf-vdso32.so.1 | ${AWK} '{print $1}')" -gt 2048 ] | |||||
| then | |||||
| echo "elf-vdso32.so.1 too large" 1>&2 | |||||
| exit 1 | |||||
| fi | |||||
| if [ -n "$(${ELFDUMP} -d elf-vdso32.so.1 | \ | |||||
| ${AWK} '/DT_REL.*SZ/{print "RELOCS"}')" ] | |||||
| then | |||||
| echo "elf-vdso32.so.1 contains runtime relocations" 1>&2 | |||||
| exit 1 | |||||
| fi | |||||
| ${CC} -x assembler-with-cpp -DLOCORE -fPIC -nostdinc -c \ | |||||
| -o elf-vdso32.so.o -I. -I"${S}" -include opt_global.h \ | |||||
| -DVDSO_NAME=elf_vdso32_so_1 -DVDSO_FILE=elf-vdso32.so.1 \ | |||||
| "${S}"/tools/vdso_wrap.S | |||||
| ${NM} -D elf-vdso32.so.1 | ${AWK} \ | |||||
| '/__vdso_ia32_sigcode/{printf "#define VDSO_IA32_SIGCODE_OFFSET 0x%s\n",$1} | |||||
| /__vdso_freebsd4_ia32_sigcode/{printf "#define VDSO_FREEBSD4_IA32_SIGCODE_OFFSET 0x%s\n",$1} | |||||
| /__vdso_ia32_osigcode/{printf "#define VDSO_IA32_OSIGCODE_OFFSET 0x%s\n",$1} | |||||
| /__vdso_lcall_tramp/{printf "#define VDSO_LCALL_TRAMP_OFFSET 0x%s\n",$1}' \ | |||||
| >vdso_ia32_offsets.h | |||||