1#!/bin/sh
2#
3# Skip the test if arch+kernel combination is not supported.
4#
5# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
6# Copyright (c) 2016-2018 The strace developers.
7# All rights reserved.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12# 1. Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14# 2. Redistributions in binary form must reproduce the above copyright
15#    notice, this list of conditions and the following disclaimer in the
16#    documentation and/or other materials provided with the distribution.
17# 3. The name of the author may not be used to endorse or promote products
18#    derived from this software without specific prior written permission.
19#
20# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31. "${srcdir=.}/init.sh"
32
33uname_r="$(uname -r)"
34case "$STRACE_ARCH" in
35	arm)
36		# PTRACE_SET_SYSCALL is supported by linux kernel
37		# starting with commit v2.6.16-rc1~107^2.
38		require_min_kernel_version_or_skip 2.6.16 ;;
39	aarch64)
40		# NT_ARM_SYSTEM_CALL regset is supported by linux kernel
41		# starting with commit v3.19-rc1~59^2~16.
42		require_min_kernel_version_or_skip 3.19 ;;
43	hppa)
44		# Syscall number and return value modification did not work
45		# properly before commit v4.5-rc7~31^2~1.
46		require_min_kernel_version_or_skip 4.5 ;;
47	sparc*)
48		# Reloading the syscall number from %g1 register is supported
49		# by linux kernel starting with commit v4.5-rc7~35^2~3.
50		require_min_kernel_version_or_skip 4.5 ;;
51	mips)
52		# Only the native ABI is supported by the kernel properly, see
53		# https://lists.strace.io/pipermail/strace-devel/2017-January/005896.html
54		msg_prefix="mips $MIPS_ABI scno tampering does not work"
55		uname_m="$(uname -m)"
56		case "$MIPS_ABI:$uname_m" in
57			n64:mips64) ;;
58			o32:mips)
59				# is it really mips32?
60				if ../is_linux_mips_n64; then
61					skip_ "$msg_prefix on mips n64 yet"
62				fi
63				;;
64			*) skip_ "$msg_prefix on $uname_m yet" ;;
65		esac ;;
66esac
67