target/linux/generic/backport-5.4/080-wireguard-0073-wireguard-selftests-import-harness-makefile-for-test.patch

   1 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
   2 From: "Jason A. Donenfeld" <Jason@zx2c4.com>
   3 Date: Sun, 15 Dec 2019 22:08:00 +0100
   4 Subject: [PATCH] wireguard: selftests: import harness makefile for test suite
   5
   6 commit 65d88d04114bca7d85faebd5fed61069cb2b632c upstream.
   7
   8 WireGuard has been using this on build.wireguard.com for the last
   9 several years with considerable success. It allows for very quick and
  10 iterative development cycles, and supports several platforms.
  11
  12 To run the test suite on your current platform in QEMU:
  13
  14   $ make -C tools/testing/selftests/wireguard/qemu -j$(nproc)
  15
  16 To run it with KASAN and such turned on:
  17
  18   $ DEBUG_KERNEL=yes make -C tools/testing/selftests/wireguard/qemu -j$(nproc)
  19
  20 To run it emulated for another platform in QEMU:
  21
  22   $ ARCH=arm make -C tools/testing/selftests/wireguard/qemu -j$(nproc)
  23
  24 At the moment, we support aarch64_be, aarch64, arm, armeb, i686, m68k,
  25 mips64, mips64el, mips, mipsel, powerpc64le, powerpc, and x86_64.
  26
  27 The system supports incremental rebuilding, so it should be very fast to
  28 change a single file and then test it out and have immediate feedback.
  29
  30 This requires for the right toolchain and qemu to be installed prior.
  31 I've had success with those from musl.cc.
  32
  33 This is tailored for WireGuard at the moment, though later projects
  34 might generalize it for other network testing.
  35
  36 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
  37 Signed-off-by: David S. Miller <davem@davemloft.net>
  38 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
  39 ---
  40  .../selftests/wireguard/qemu/.gitignore       |   2 +
  41  .../testing/selftests/wireguard/qemu/Makefile | 385 ++++++++++++++++++
  42  .../wireguard/qemu/arch/aarch64.config        |   5 +
  43  .../wireguard/qemu/arch/aarch64_be.config     |   6 +
  44  .../selftests/wireguard/qemu/arch/arm.config  |   9 +
  45  .../wireguard/qemu/arch/armeb.config          |  10 +
  46  .../selftests/wireguard/qemu/arch/i686.config |   5 +
  47  .../selftests/wireguard/qemu/arch/m68k.config |   9 +
  48  .../selftests/wireguard/qemu/arch/mips.config |  11 +
  49  .../wireguard/qemu/arch/mips64.config         |  14 +
  50  .../wireguard/qemu/arch/mips64el.config       |  15 +
  51  .../wireguard/qemu/arch/mipsel.config         |  12 +
  52  .../wireguard/qemu/arch/powerpc.config        |  10 +
  53  .../wireguard/qemu/arch/powerpc64le.config    |  12 +
  54  .../wireguard/qemu/arch/x86_64.config         |   5 +
  55  .../selftests/wireguard/qemu/debug.config     |  67 +++
  56  tools/testing/selftests/wireguard/qemu/init.c | 284 +++++++++++++
  57  .../selftests/wireguard/qemu/kernel.config    |  86 ++++
  58  18 files changed, 947 insertions(+)
  59  create mode 100644 tools/testing/selftests/wireguard/qemu/.gitignore
  60  create mode 100644 tools/testing/selftests/wireguard/qemu/Makefile
  61  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/aarch64.config
  62  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/aarch64_be.config
  63  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/arm.config
  64  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/armeb.config
  65  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/i686.config
  66  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/m68k.config
  67  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/mips.config
  68  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/mips64.config
  69  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/mips64el.config
  70  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/mipsel.config
  71  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/powerpc.config
  72  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
  73  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/x86_64.config
  74  create mode 100644 tools/testing/selftests/wireguard/qemu/debug.config
  75  create mode 100644 tools/testing/selftests/wireguard/qemu/init.c
  76  create mode 100644 tools/testing/selftests/wireguard/qemu/kernel.config
  77
  78 --- /dev/null
  79 +++ b/tools/testing/selftests/wireguard/qemu/.gitignore
  80 @@ -0,0 +1,2 @@
  81 +build/
  82 +distfiles/
  83 --- /dev/null
  84 +++ b/tools/testing/selftests/wireguard/qemu/Makefile
  85 @@ -0,0 +1,385 @@
  86 +# SPDX-License-Identifier: GPL-2.0
  87 +#
  88 +# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  89 +
  90 +PWD := $(shell pwd)
  91 +
  92 +CHOST := $(shell gcc -dumpmachine)
  93 +ifneq (,$(ARCH))
  94 +CBUILD := $(subst -gcc,,$(lastword $(subst /, ,$(firstword $(wildcard $(foreach bindir,$(subst :, ,$(PATH)),$(bindir)/$(ARCH)-*-gcc))))))
  95 +ifeq (,$(CBUILD))
  96 +$(error The toolchain for $(ARCH) is not installed)
  97 +endif
  98 +else
  99 +CBUILD := $(CHOST)
 100 +ARCH := $(firstword $(subst -, ,$(CBUILD)))
 101 +endif
 102 +
 103 +# Set these from the environment to override
 104 +KERNEL_PATH ?= $(PWD)/../../../../..
 105 +BUILD_PATH ?= $(PWD)/build/$(ARCH)
 106 +DISTFILES_PATH ?= $(PWD)/distfiles
 107 +NR_CPUS ?= 4
 108 +
 109 +MIRROR := https://download.wireguard.com/qemu-test/distfiles/
 110 +
 111 +default: qemu
 112 +
 113 +# variable name, tarball project name, version, tarball extension, default URI base
 114 +define tar_download =
 115 +$(1)_VERSION := $(3)
 116 +$(1)_NAME := $(2)-$$($(1)_VERSION)
 117 +$(1)_TAR := $(DISTFILES_PATH)/$$($(1)_NAME)$(4)
 118 +$(1)_PATH := $(BUILD_PATH)/$$($(1)_NAME)
 119 +$(call file_download,$$($(1)_NAME)$(4),$(5),$(6))
 120 +endef
 121 +
 122 +define file_download =
 123 +$(DISTFILES_PATH)/$(1):
 124 +       mkdir -p $(DISTFILES_PATH)
 125 +       flock -x $$@.lock -c '[ -f $$@ ] && exit 0; wget -O $$@.tmp $(MIRROR)$(1) || wget -t inf --retry-on-http-error=404 -O $$@.tmp $(2)$(1) || rm -f $$@.tmp'
 126 +       if echo "$(3)  $$@.tmp" | sha256sum -c -; then mv $$@.tmp $$@; else rm -f $$@.tmp; exit 71; fi
 127 +endef
 128 +
 129 +$(eval $(call tar_download,MUSL,musl,1.1.20,.tar.gz,https://www.musl-libc.org/releases/,44be8771d0e6c6b5f82dd15662eb2957c9a3173a19a8b49966ac0542bbd40d61))
 130 +$(eval $(call tar_download,LIBMNL,libmnl,1.0.4,.tar.bz2,https://www.netfilter.org/projects/libmnl/files/,171f89699f286a5854b72b91d06e8f8e3683064c5901fb09d954a9ab6f551f81))
 131 +$(eval $(call tar_download,IPERF,iperf,3.1.7,.tar.gz,http://downloads.es.net/pub/iperf/,a4ef73406fe92250602b8da2ae89ec53211f805df97a1d1d629db5a14043734f))
 132 +$(eval $(call tar_download,BASH,bash,5.0,.tar.gz,https://ftp.gnu.org/gnu/bash/,b4a80f2ac66170b2913efbfb9f2594f1f76c7b1afd11f799e22035d63077fb4d))
 133 +$(eval $(call tar_download,IPROUTE2,iproute2,5.1.0,.tar.gz,https://www.kernel.org/pub/linux/utils/net/iproute2/,9b43707d6075ecdca14803ca8ce0c8553848c49fa1586d12fd508d66577243f2))
 134 +$(eval $(call tar_download,IPTABLES,iptables,1.6.1,.tar.bz2,https://www.netfilter.org/projects/iptables/files/,0fc2d7bd5d7be11311726466789d4c65fb4c8e096c9182b56ce97440864f0cf5))
 135 +$(eval $(call tar_download,NMAP,nmap,7.60,.tar.bz2,https://nmap.org/dist/,a8796ecc4fa6c38aad6139d9515dc8113023a82e9d787e5a5fb5fa1b05516f21))
 136 +$(eval $(call tar_download,IPUTILS,iputils,s20161105,.tar.gz,https://github.com/iputils/iputils/archive/s20161105.tar.gz/#,f813092f03d17294fd23544b129b95cdb87fe19f7970a51908a6b88509acad8a))
 137 +$(eval $(call tar_download,WIREGUARD_TOOLS,WireGuard,0.0.20191212,.tar.xz,https://git.zx2c4.com/WireGuard/snapshot/,b0d718380f7a8822b2f12d75e462fa4eafa3a77871002981f367cd4fe2a1b071))
 138 +
 139 +KERNEL_BUILD_PATH := $(BUILD_PATH)/kernel$(if $(findstring yes,$(DEBUG_KERNEL)),-debug)
 140 +rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))
 141 +WIREGUARD_SOURCES := $(call rwildcard,$(KERNEL_PATH)/drivers/net/wireguard/,*)
 142 +
 143 +export CFLAGS ?= -O3 -pipe
 144 +export LDFLAGS ?=
 145 +export CPPFLAGS := -I$(BUILD_PATH)/include
 146 +
 147 +ifeq ($(CHOST),$(CBUILD))
 148 +CROSS_COMPILE_FLAG := --host=$(CHOST)
 149 +NOPIE_GCC := gcc -fno-PIE
 150 +CFLAGS += -march=native
 151 +STRIP := strip
 152 +else
 153 +$(info Cross compilation: building for $(CBUILD) using $(CHOST))
 154 +CROSS_COMPILE_FLAG := --build=$(CBUILD) --host=$(CHOST)
 155 +export CROSS_COMPILE=$(CBUILD)-
 156 +NOPIE_GCC := $(CBUILD)-gcc -fno-PIE
 157 +STRIP := $(CBUILD)-strip
 158 +endif
 159 +ifeq ($(ARCH),aarch64)
 160 +QEMU_ARCH := aarch64
 161 +KERNEL_ARCH := arm64
 162 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm64/boot/Image
 163 +ifeq ($(CHOST),$(CBUILD))
 164 +QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
 165 +else
 166 +QEMU_MACHINE := -cpu cortex-a53 -machine virt
 167 +CFLAGS += -march=armv8-a -mtune=cortex-a53
 168 +endif
 169 +else ifeq ($(ARCH),aarch64_be)
 170 +QEMU_ARCH := aarch64
 171 +KERNEL_ARCH := arm64
 172 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm64/boot/Image
 173 +ifeq ($(CHOST),$(CBUILD))
 174 +QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
 175 +else
 176 +QEMU_MACHINE := -cpu cortex-a53 -machine virt
 177 +CFLAGS += -march=armv8-a -mtune=cortex-a53
 178 +endif
 179 +else ifeq ($(ARCH),arm)
 180 +QEMU_ARCH := arm
 181 +KERNEL_ARCH := arm
 182 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm/boot/zImage
 183 +ifeq ($(CHOST),$(CBUILD))
 184 +QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
 185 +else
 186 +QEMU_MACHINE := -cpu cortex-a15 -machine virt
 187 +CFLAGS += -march=armv7-a -mtune=cortex-a15 -mabi=aapcs-linux
 188 +endif
 189 +else ifeq ($(ARCH),armeb)
 190 +QEMU_ARCH := arm
 191 +KERNEL_ARCH := arm
 192 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm/boot/zImage
 193 +ifeq ($(CHOST),$(CBUILD))
 194 +QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
 195 +else
 196 +QEMU_MACHINE := -cpu cortex-a15 -machine virt
 197 +CFLAGS += -march=armv7-a -mabi=aapcs-linux # We don't pass -mtune=cortex-a15 due to a compiler bug on big endian.
 198 +LDFLAGS += -Wl,--be8
 199 +endif
 200 +else ifeq ($(ARCH),x86_64)
 201 +QEMU_ARCH := x86_64
 202 +KERNEL_ARCH := x86_64
 203 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/x86/boot/bzImage
 204 +ifeq ($(CHOST),$(CBUILD))
 205 +QEMU_MACHINE := -cpu host -machine q35,accel=kvm
 206 +else
 207 +QEMU_MACHINE := -cpu Skylake-Server -machine q35
 208 +CFLAGS += -march=skylake-avx512
 209 +endif
 210 +else ifeq ($(ARCH),i686)
 211 +QEMU_ARCH := i386
 212 +KERNEL_ARCH := x86
 213 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/x86/boot/bzImage
 214 +ifeq ($(subst i686,x86_64,$(CBUILD)),$(CHOST))
 215 +QEMU_MACHINE := -cpu host -machine q35,accel=kvm
 216 +else
 217 +QEMU_MACHINE := -cpu coreduo -machine q35
 218 +CFLAGS += -march=prescott
 219 +endif
 220 +else ifeq ($(ARCH),mips64)
 221 +QEMU_ARCH := mips64
 222 +KERNEL_ARCH := mips
 223 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 224 +ifeq ($(CHOST),$(CBUILD))
 225 +QEMU_MACHINE := -cpu host -machine malta,accel=kvm
 226 +CFLAGS += -EB
 227 +else
 228 +QEMU_MACHINE := -cpu MIPS64R2-generic -machine malta -smp 1
 229 +CFLAGS += -march=mips64r2 -EB
 230 +endif
 231 +else ifeq ($(ARCH),mips64el)
 232 +QEMU_ARCH := mips64el
 233 +KERNEL_ARCH := mips
 234 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 235 +ifeq ($(CHOST),$(CBUILD))
 236 +QEMU_MACHINE := -cpu host -machine malta,accel=kvm
 237 +CFLAGS += -EL
 238 +else
 239 +QEMU_MACHINE := -cpu MIPS64R2-generic -machine malta -smp 1
 240 +CFLAGS += -march=mips64r2 -EL
 241 +endif
 242 +else ifeq ($(ARCH),mips)
 243 +QEMU_ARCH := mips
 244 +KERNEL_ARCH := mips
 245 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 246 +ifeq ($(CHOST),$(CBUILD))
 247 +QEMU_MACHINE := -cpu host -machine malta,accel=kvm
 248 +CFLAGS += -EB
 249 +else
 250 +QEMU_MACHINE := -cpu 24Kf -machine malta -smp 1
 251 +CFLAGS += -march=mips32r2 -EB
 252 +endif
 253 +else ifeq ($(ARCH),mipsel)
 254 +QEMU_ARCH := mipsel
 255 +KERNEL_ARCH := mips
 256 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 257 +ifeq ($(CHOST),$(CBUILD))
 258 +QEMU_MACHINE := -cpu host -machine malta,accel=kvm
 259 +CFLAGS += -EL
 260 +else
 261 +QEMU_MACHINE := -cpu 24Kf -machine malta -smp 1
 262 +CFLAGS += -march=mips32r2 -EL
 263 +endif
 264 +else ifeq ($(ARCH),powerpc64le)
 265 +QEMU_ARCH := ppc64
 266 +KERNEL_ARCH := powerpc
 267 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 268 +ifeq ($(CHOST),$(CBUILD))
 269 +QEMU_MACHINE := -cpu host,accel=kvm -machine pseries
 270 +else
 271 +QEMU_MACHINE := -machine pseries
 272 +endif
 273 +CFLAGS += -mcpu=powerpc64le -mlong-double-64
 274 +else ifeq ($(ARCH),powerpc)
 275 +QEMU_ARCH := ppc
 276 +KERNEL_ARCH := powerpc
 277 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/powerpc/boot/uImage
 278 +ifeq ($(CHOST),$(CBUILD))
 279 +QEMU_MACHINE := -cpu host,accel=kvm -machine ppce500
 280 +else
 281 +QEMU_MACHINE := -machine ppce500
 282 +endif
 283 +CFLAGS += -mcpu=powerpc -mlong-double-64 -msecure-plt
 284 +else ifeq ($(ARCH),m68k)
 285 +QEMU_ARCH := m68k
 286 +KERNEL_ARCH := m68k
 287 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 288 +ifeq ($(CHOST),$(CBUILD))
 289 +QEMU_MACHINE := -cpu host,accel=kvm -machine q800
 290 +else
 291 +QEMU_MACHINE := -machine q800
 292 +endif
 293 +else
 294 +$(error I only build: x86_64, i686, arm, armeb, aarch64, aarch64_be, mips, mipsel, mips64, mips64el, powerpc64le, powerpc, m68k)
 295 +endif
 296 +
 297 +REAL_CC := $(CBUILD)-gcc
 298 +MUSL_CC := $(BUILD_PATH)/musl-gcc
 299 +export CC := $(MUSL_CC)
 300 +USERSPACE_DEPS := $(MUSL_CC) $(BUILD_PATH)/include/.installed $(BUILD_PATH)/include/linux/.installed
 301 +
 302 +build: $(KERNEL_BZIMAGE)
 303 +qemu: $(KERNEL_BZIMAGE)
 304 +       rm -f $(BUILD_PATH)/result
 305 +       timeout --foreground 20m qemu-system-$(QEMU_ARCH) \
 306 +               -nodefaults \
 307 +               -nographic \
 308 +               -smp $(NR_CPUS) \
 309 +               $(QEMU_MACHINE) \
 310 +               -m $$(grep -q CONFIG_DEBUG_KMEMLEAK=y $(KERNEL_BUILD_PATH)/.config && echo 1G || echo 256M) \
 311 +               -serial stdio \
 312 +               -serial file:$(BUILD_PATH)/result \
 313 +               -no-reboot \
 314 +               -monitor none \
 315 +               -kernel $<
 316 +       grep -Fq success $(BUILD_PATH)/result
 317 +
 318 +$(BUILD_PATH)/init-cpio-spec.txt:
 319 +       mkdir -p $(BUILD_PATH)
 320 +       echo "file /init $(BUILD_PATH)/init 755 0 0" > $@
 321 +       echo "file /init.sh $(PWD)/../netns.sh 755 0 0" >> $@
 322 +       echo "dir /dev 755 0 0" >> $@
 323 +       echo "nod /dev/console 644 0 0 c 5 1" >> $@
 324 +       echo "dir /bin 755 0 0" >> $@
 325 +       echo "file /bin/iperf3 $(IPERF_PATH)/src/iperf3 755 0 0" >> $@
 326 +       echo "file /bin/wg $(WIREGUARD_TOOLS_PATH)/src/tools/wg 755 0 0" >> $@
 327 +       echo "file /bin/bash $(BASH_PATH)/bash 755 0 0" >> $@
 328 +       echo "file /bin/ip $(IPROUTE2_PATH)/ip/ip 755 0 0" >> $@
 329 +       echo "file /bin/ss $(IPROUTE2_PATH)/misc/ss 755 0 0" >> $@
 330 +       echo "file /bin/ping $(IPUTILS_PATH)/ping 755 0 0" >> $@
 331 +       echo "file /bin/ncat $(NMAP_PATH)/ncat/ncat 755 0 0" >> $@
 332 +       echo "file /bin/xtables-multi $(IPTABLES_PATH)/iptables/xtables-multi 755 0 0" >> $@
 333 +       echo "slink /bin/iptables xtables-multi 777 0 0" >> $@
 334 +       echo "slink /bin/ping6 ping 777 0 0" >> $@
 335 +       echo "dir /lib 755 0 0" >> $@
 336 +       echo "file /lib/libc.so $(MUSL_PATH)/lib/libc.so 755 0 0" >> $@
 337 +       echo "slink /lib/ld-linux.so.1 libc.so 777 0 0" >> $@
 338 +
 339 +$(KERNEL_BUILD_PATH)/.config: kernel.config arch/$(ARCH).config
 340 +       mkdir -p $(KERNEL_BUILD_PATH)
 341 +       cp kernel.config $(KERNEL_BUILD_PATH)/minimal.config
 342 +       printf 'CONFIG_NR_CPUS=$(NR_CPUS)\nCONFIG_INITRAMFS_SOURCE="$(BUILD_PATH)/init-cpio-spec.txt"\n' >> $(KERNEL_BUILD_PATH)/minimal.config
 343 +       cat arch/$(ARCH).config >> $(KERNEL_BUILD_PATH)/minimal.config
 344 +       $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) allnoconfig
 345 +       cd $(KERNEL_BUILD_PATH) && ARCH=$(KERNEL_ARCH) $(KERNEL_PATH)/scripts/kconfig/merge_config.sh -n $(KERNEL_BUILD_PATH)/.config $(KERNEL_BUILD_PATH)/minimal.config
 346 +       $(if $(findstring yes,$(DEBUG_KERNEL)),cp debug.config $(KERNEL_BUILD_PATH) && cd $(KERNEL_BUILD_PATH) && ARCH=$(KERNEL_ARCH) $(KERNEL_PATH)/scripts/kconfig/merge_config.sh -n $(KERNEL_BUILD_PATH)/.config debug.config,)
 347 +
 348 +$(KERNEL_BZIMAGE): $(KERNEL_BUILD_PATH)/.config $(BUILD_PATH)/init-cpio-spec.txt $(MUSL_PATH)/lib/libc.so $(IPERF_PATH)/src/iperf3 $(IPUTILS_PATH)/ping $(BASH_PATH)/bash $(IPROUTE2_PATH)/misc/ss $(IPROUTE2_PATH)/ip/ip $(IPTABLES_PATH)/iptables/xtables-multi $(NMAP_PATH)/ncat/ncat $(WIREGUARD_TOOLS_PATH)/src/tools/wg $(BUILD_PATH)/init ../netns.sh $(WIREGUARD_SOURCES)
 349 +       $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE) CC="$(NOPIE_GCC)"
 350 +
 351 +$(BUILD_PATH)/include/linux/.installed: | $(KERNEL_BUILD_PATH)/.config
 352 +       $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) INSTALL_HDR_PATH=$(BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE) headers_install
 353 +       touch $@
 354 +
 355 +$(MUSL_PATH)/lib/libc.so: $(MUSL_TAR)
 356 +       mkdir -p $(BUILD_PATH)
 357 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 358 +       cd $(MUSL_PATH) && CC=$(REAL_CC) ./configure --prefix=/ --disable-static --build=$(CBUILD)
 359 +       $(MAKE) -C $(MUSL_PATH)
 360 +       $(STRIP) -s $@
 361 +
 362 +$(BUILD_PATH)/include/.installed: $(MUSL_PATH)/lib/libc.so
 363 +       $(MAKE) -C $(MUSL_PATH) DESTDIR=$(BUILD_PATH) install-headers
 364 +       touch $@
 365 +
 366 +$(MUSL_CC): $(MUSL_PATH)/lib/libc.so
 367 +       sh $(MUSL_PATH)/tools/musl-gcc.specs.sh $(BUILD_PATH)/include $(MUSL_PATH)/lib /lib/ld-linux.so.1 > $(BUILD_PATH)/musl-gcc.specs
 368 +       printf '#!/bin/sh\nexec "$(REAL_CC)" --specs="$(BUILD_PATH)/musl-gcc.specs" -fno-stack-protector -no-pie "$$@"\n' > $(BUILD_PATH)/musl-gcc
 369 +       chmod +x $(BUILD_PATH)/musl-gcc
 370 +
 371 +$(IPERF_PATH)/.installed: $(IPERF_TAR)
 372 +       mkdir -p $(BUILD_PATH)
 373 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 374 +       sed -i '1s/^/#include <stdint.h>/' $(IPERF_PATH)/src/cjson.h $(IPERF_PATH)/src/timer.h
 375 +       sed -i -r 's/-p?g//g' $(IPERF_PATH)/src/Makefile*
 376 +       touch $@
 377 +
 378 +$(IPERF_PATH)/src/iperf3: | $(IPERF_PATH)/.installed $(USERSPACE_DEPS)
 379 +       cd $(IPERF_PATH) && CFLAGS="$(CFLAGS) -D_GNU_SOURCE" ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared
 380 +       $(MAKE) -C $(IPERF_PATH)
 381 +       $(STRIP) -s $@
 382 +
 383 +$(LIBMNL_PATH)/.installed: $(LIBMNL_TAR)
 384 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 385 +       touch $@
 386 +
 387 +$(LIBMNL_PATH)/src/.libs/libmnl.a: | $(LIBMNL_PATH)/.installed $(USERSPACE_DEPS)
 388 +       cd $(LIBMNL_PATH) && ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared
 389 +       $(MAKE) -C $(LIBMNL_PATH)
 390 +       sed -i 's:prefix=.*:prefix=$(LIBMNL_PATH):' $(LIBMNL_PATH)/libmnl.pc
 391 +
 392 +$(WIREGUARD_TOOLS_PATH)/.installed: $(WIREGUARD_TOOLS_TAR)
 393 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 394 +       touch $@
 395 +
 396 +$(WIREGUARD_TOOLS_PATH)/src/tools/wg: | $(WIREGUARD_TOOLS_PATH)/.installed $(LIBMNL_PATH)/src/.libs/libmnl.a $(USERSPACE_DEPS)
 397 +       LDFLAGS="$(LDFLAGS) -L$(LIBMNL_PATH)/src/.libs" $(MAKE) -C $(WIREGUARD_TOOLS_PATH)/src/tools LIBMNL_CFLAGS="-I$(LIBMNL_PATH)/include" LIBMNL_LDLIBS="-lmnl" wg
 398 +       $(STRIP) -s $@
 399 +
 400 +$(BUILD_PATH)/init: init.c | $(USERSPACE_DEPS)
 401 +       mkdir -p $(BUILD_PATH)
 402 +       $(MUSL_CC) -o $@ $(CFLAGS) $(LDFLAGS) -std=gnu11 $<
 403 +       $(STRIP) -s $@
 404 +
 405 +$(IPUTILS_PATH)/.installed: $(IPUTILS_TAR)
 406 +       mkdir -p $(BUILD_PATH)
 407 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 408 +       touch $@
 409 +
 410 +$(IPUTILS_PATH)/ping: | $(IPUTILS_PATH)/.installed $(USERSPACE_DEPS)
 411 +       $(MAKE) -C $(IPUTILS_PATH) USE_CAP=no USE_IDN=no USE_NETTLE=no USE_CRYPTO=no ping
 412 +       $(STRIP) -s $@
 413 +
 414 +$(BASH_PATH)/.installed: $(BASH_TAR)
 415 +       mkdir -p $(BUILD_PATH)
 416 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 417 +       touch $@
 418 +
 419 +$(BASH_PATH)/bash: | $(BASH_PATH)/.installed $(USERSPACE_DEPS)
 420 +       cd $(BASH_PATH) && ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --without-bash-malloc --disable-debugger --disable-help-builtin --disable-history --disable-multibyte --disable-progcomp --disable-readline --disable-mem-scramble
 421 +       $(MAKE) -C $(BASH_PATH)
 422 +       $(STRIP) -s $@
 423 +
 424 +$(IPROUTE2_PATH)/.installed: $(IPROUTE2_TAR)
 425 +       mkdir -p $(BUILD_PATH)
 426 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 427 +       printf 'CC:=$(CC)\nPKG_CONFIG:=pkg-config\nTC_CONFIG_XT:=n\nTC_CONFIG_ATM:=n\nTC_CONFIG_IPSET:=n\nIP_CONFIG_SETNS:=y\nHAVE_ELF:=n\nHAVE_MNL:=y\nHAVE_BERKELEY_DB:=n\nHAVE_LATEX:=n\nHAVE_PDFLATEX:=n\nCFLAGS+=-DHAVE_SETNS -DHAVE_LIBMNL -I$(LIBMNL_PATH)/include\nLDLIBS+=-lmnl' > $(IPROUTE2_PATH)/config.mk
 428 +       printf 'lib: snapshot\n\t$$(MAKE) -C lib\nip/ip: lib\n\t$$(MAKE) -C ip ip\nmisc/ss: lib\n\t$$(MAKE) -C misc ss\n' >> $(IPROUTE2_PATH)/Makefile
 429 +       touch $@
 430 +
 431 +$(IPROUTE2_PATH)/ip/ip: | $(IPROUTE2_PATH)/.installed $(LIBMNL_PATH)/src/.libs/libmnl.a $(USERSPACE_DEPS)
 432 +       LDFLAGS="$(LDFLAGS) -L$(LIBMNL_PATH)/src/.libs" PKG_CONFIG_LIBDIR="$(LIBMNL_PATH)" $(MAKE) -C $(IPROUTE2_PATH) PREFIX=/ ip/ip
 433 +       $(STRIP) -s $(IPROUTE2_PATH)/ip/ip
 434 +
 435 +$(IPROUTE2_PATH)/misc/ss: | $(IPROUTE2_PATH)/.installed $(LIBMNL_PATH)/src/.libs/libmnl.a $(USERSPACE_DEPS)
 436 +       LDFLAGS="$(LDFLAGS) -L$(LIBMNL_PATH)/src/.libs" PKG_CONFIG_LIBDIR="$(LIBMNL_PATH)" $(MAKE) -C $(IPROUTE2_PATH) PREFIX=/ misc/ss
 437 +       $(STRIP) -s $(IPROUTE2_PATH)/misc/ss
 438 +
 439 +$(IPTABLES_PATH)/.installed: $(IPTABLES_TAR)
 440 +       mkdir -p $(BUILD_PATH)
 441 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 442 +       sed -i -e "/nfnetlink=[01]/s:=[01]:=0:" -e "/nfconntrack=[01]/s:=[01]:=0:" $(IPTABLES_PATH)/configure
 443 +       touch $@
 444 +
 445 +$(IPTABLES_PATH)/iptables/xtables-multi: | $(IPTABLES_PATH)/.installed $(LIBMNL_PATH)/src/.libs/libmnl.a $(USERSPACE_DEPS)
 446 +       cd $(IPTABLES_PATH) && PKG_CONFIG_LIBDIR="$(LIBMNL_PATH)" ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared --disable-nftables --disable-bpf-compiler --disable-nfsynproxy --disable-libipq --with-kernel=$(BUILD_PATH)/include
 447 +       $(MAKE) -C $(IPTABLES_PATH)
 448 +       $(STRIP) -s $@
 449 +
 450 +$(NMAP_PATH)/.installed: $(NMAP_TAR)
 451 +       mkdir -p $(BUILD_PATH)
 452 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 453 +       touch $@
 454 +
 455 +$(NMAP_PATH)/ncat/ncat: | $(NMAP_PATH)/.installed $(USERSPACE_DEPS)
 456 +       cd $(NMAP_PATH) && ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared --without-ndiff --without-zenmap --without-nping --with-libpcap=included --with-libpcre=included --with-libdnet=included --without-liblua --with-liblinear=included --without-nmap-update --without-openssl --with-pcap=linux
 457 +       $(MAKE) -C $(NMAP_PATH) build-ncat
 458 +       $(STRIP) -s $@
 459 +
 460 +clean:
 461 +       rm -rf $(BUILD_PATH)
 462 +
 463 +distclean: clean
 464 +       rm -rf $(DISTFILES_PATH)
 465 +
 466 +menuconfig: $(KERNEL_BUILD_PATH)/.config
 467 +       $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE) CC="$(NOPIE_GCC)" menuconfig
 468 +
 469 +.PHONY: qemu build clean distclean menuconfig
 470 +.DELETE_ON_ERROR:
 471 --- /dev/null
 472 +++ b/tools/testing/selftests/wireguard/qemu/arch/aarch64.config
 473 @@ -0,0 +1,5 @@
 474 +CONFIG_SERIAL_AMBA_PL011=y
 475 +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 476 +CONFIG_CMDLINE_BOOL=y
 477 +CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
 478 +CONFIG_FRAME_WARN=1280
 479 --- /dev/null
 480 +++ b/tools/testing/selftests/wireguard/qemu/arch/aarch64_be.config
 481 @@ -0,0 +1,6 @@
 482 +CONFIG_CPU_BIG_ENDIAN=y
 483 +CONFIG_SERIAL_AMBA_PL011=y
 484 +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 485 +CONFIG_CMDLINE_BOOL=y
 486 +CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
 487 +CONFIG_FRAME_WARN=1280
 488 --- /dev/null
 489 +++ b/tools/testing/selftests/wireguard/qemu/arch/arm.config
 490 @@ -0,0 +1,9 @@
 491 +CONFIG_MMU=y
 492 +CONFIG_ARCH_MULTI_V7=y
 493 +CONFIG_ARCH_VIRT=y
 494 +CONFIG_THUMB2_KERNEL=n
 495 +CONFIG_SERIAL_AMBA_PL011=y
 496 +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 497 +CONFIG_CMDLINE_BOOL=y
 498 +CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
 499 +CONFIG_FRAME_WARN=1024
 500 --- /dev/null
 501 +++ b/tools/testing/selftests/wireguard/qemu/arch/armeb.config
 502 @@ -0,0 +1,10 @@
 503 +CONFIG_MMU=y
 504 +CONFIG_ARCH_MULTI_V7=y
 505 +CONFIG_ARCH_VIRT=y
 506 +CONFIG_THUMB2_KERNEL=n
 507 +CONFIG_SERIAL_AMBA_PL011=y
 508 +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 509 +CONFIG_CMDLINE_BOOL=y
 510 +CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
 511 +CONFIG_CPU_BIG_ENDIAN=y
 512 +CONFIG_FRAME_WARN=1024
 513 --- /dev/null
 514 +++ b/tools/testing/selftests/wireguard/qemu/arch/i686.config
 515 @@ -0,0 +1,5 @@
 516 +CONFIG_SERIAL_8250=y
 517 +CONFIG_SERIAL_8250_CONSOLE=y
 518 +CONFIG_CMDLINE_BOOL=y
 519 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 520 +CONFIG_FRAME_WARN=1024
 521 --- /dev/null
 522 +++ b/tools/testing/selftests/wireguard/qemu/arch/m68k.config
 523 @@ -0,0 +1,9 @@
 524 +CONFIG_MMU=y
 525 +CONFIG_M68040=y
 526 +CONFIG_MAC=y
 527 +CONFIG_SERIAL_PMACZILOG=y
 528 +CONFIG_SERIAL_PMACZILOG_TTYS=y
 529 +CONFIG_SERIAL_PMACZILOG_CONSOLE=y
 530 +CONFIG_CMDLINE_BOOL=y
 531 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 532 +CONFIG_FRAME_WARN=1024
 533 --- /dev/null
 534 +++ b/tools/testing/selftests/wireguard/qemu/arch/mips.config
 535 @@ -0,0 +1,11 @@
 536 +CONFIG_CPU_MIPS32_R2=y
 537 +CONFIG_MIPS_MALTA=y
 538 +CONFIG_MIPS_CPS=y
 539 +CONFIG_MIPS_FP_SUPPORT=y
 540 +CONFIG_POWER_RESET=y
 541 +CONFIG_POWER_RESET_SYSCON=y
 542 +CONFIG_SERIAL_8250=y
 543 +CONFIG_SERIAL_8250_CONSOLE=y
 544 +CONFIG_CMDLINE_BOOL=y
 545 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 546 +CONFIG_FRAME_WARN=1024
 547 --- /dev/null
 548 +++ b/tools/testing/selftests/wireguard/qemu/arch/mips64.config
 549 @@ -0,0 +1,14 @@
 550 +CONFIG_64BIT=y
 551 +CONFIG_CPU_MIPS64_R2=y
 552 +CONFIG_MIPS32_N32=y
 553 +CONFIG_CPU_HAS_MSA=y
 554 +CONFIG_MIPS_MALTA=y
 555 +CONFIG_MIPS_CPS=y
 556 +CONFIG_MIPS_FP_SUPPORT=y
 557 +CONFIG_POWER_RESET=y
 558 +CONFIG_POWER_RESET_SYSCON=y
 559 +CONFIG_SERIAL_8250=y
 560 +CONFIG_SERIAL_8250_CONSOLE=y
 561 +CONFIG_CMDLINE_BOOL=y
 562 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 563 +CONFIG_FRAME_WARN=1280
 564 --- /dev/null
 565 +++ b/tools/testing/selftests/wireguard/qemu/arch/mips64el.config
 566 @@ -0,0 +1,15 @@
 567 +CONFIG_64BIT=y
 568 +CONFIG_CPU_MIPS64_R2=y
 569 +CONFIG_MIPS32_N32=y
 570 +CONFIG_CPU_HAS_MSA=y
 571 +CONFIG_MIPS_MALTA=y
 572 +CONFIG_CPU_LITTLE_ENDIAN=y
 573 +CONFIG_MIPS_CPS=y
 574 +CONFIG_MIPS_FP_SUPPORT=y
 575 +CONFIG_POWER_RESET=y
 576 +CONFIG_POWER_RESET_SYSCON=y
 577 +CONFIG_SERIAL_8250=y
 578 +CONFIG_SERIAL_8250_CONSOLE=y
 579 +CONFIG_CMDLINE_BOOL=y
 580 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 581 +CONFIG_FRAME_WARN=1280
 582 --- /dev/null
 583 +++ b/tools/testing/selftests/wireguard/qemu/arch/mipsel.config
 584 @@ -0,0 +1,12 @@
 585 +CONFIG_CPU_MIPS32_R2=y
 586 +CONFIG_MIPS_MALTA=y
 587 +CONFIG_CPU_LITTLE_ENDIAN=y
 588 +CONFIG_MIPS_CPS=y
 589 +CONFIG_MIPS_FP_SUPPORT=y
 590 +CONFIG_POWER_RESET=y
 591 +CONFIG_POWER_RESET_SYSCON=y
 592 +CONFIG_SERIAL_8250=y
 593 +CONFIG_SERIAL_8250_CONSOLE=y
 594 +CONFIG_CMDLINE_BOOL=y
 595 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 596 +CONFIG_FRAME_WARN=1024
 597 --- /dev/null
 598 +++ b/tools/testing/selftests/wireguard/qemu/arch/powerpc.config
 599 @@ -0,0 +1,10 @@
 600 +CONFIG_PPC_QEMU_E500=y
 601 +CONFIG_FSL_SOC_BOOKE=y
 602 +CONFIG_PPC_85xx=y
 603 +CONFIG_PHYS_64BIT=y
 604 +CONFIG_SERIAL_8250=y
 605 +CONFIG_SERIAL_8250_CONSOLE=y
 606 +CONFIG_MATH_EMULATION=y
 607 +CONFIG_CMDLINE_BOOL=y
 608 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 609 +CONFIG_FRAME_WARN=1024
 610 --- /dev/null
 611 +++ b/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
 612 @@ -0,0 +1,12 @@
 613 +CONFIG_PPC64=y
 614 +CONFIG_PPC_PSERIES=y
 615 +CONFIG_ALTIVEC=y
 616 +CONFIG_VSX=y
 617 +CONFIG_PPC_OF_BOOT_TRAMPOLINE=y
 618 +CONFIG_PPC_RADIX_MMU=y
 619 +CONFIG_HVC_CONSOLE=y
 620 +CONFIG_CPU_LITTLE_ENDIAN=y
 621 +CONFIG_CMDLINE_BOOL=y
 622 +CONFIG_CMDLINE="console=hvc0 wg.success=hvc1"
 623 +CONFIG_SECTION_MISMATCH_WARN_ONLY=y
 624 +CONFIG_FRAME_WARN=1280
 625 --- /dev/null
 626 +++ b/tools/testing/selftests/wireguard/qemu/arch/x86_64.config
 627 @@ -0,0 +1,5 @@
 628 +CONFIG_SERIAL_8250=y
 629 +CONFIG_SERIAL_8250_CONSOLE=y
 630 +CONFIG_CMDLINE_BOOL=y
 631 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 632 +CONFIG_FRAME_WARN=1280
 633 --- /dev/null
 634 +++ b/tools/testing/selftests/wireguard/qemu/debug.config
 635 @@ -0,0 +1,67 @@
 636 +CONFIG_LOCALVERSION="-debug"
 637 +CONFIG_ENABLE_WARN_DEPRECATED=y
 638 +CONFIG_ENABLE_MUST_CHECK=y
 639 +CONFIG_FRAME_POINTER=y
 640 +CONFIG_STACK_VALIDATION=y
 641 +CONFIG_DEBUG_KERNEL=y
 642 +CONFIG_DEBUG_INFO=y
 643 +CONFIG_DEBUG_INFO_DWARF4=y
 644 +CONFIG_PAGE_EXTENSION=y
 645 +CONFIG_PAGE_POISONING=y
 646 +CONFIG_DEBUG_OBJECTS=y
 647 +CONFIG_DEBUG_OBJECTS_FREE=y
 648 +CONFIG_DEBUG_OBJECTS_TIMERS=y
 649 +CONFIG_DEBUG_OBJECTS_WORK=y
 650 +CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
 651 +CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
 652 +CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
 653 +CONFIG_SLUB_DEBUG_ON=y
 654 +CONFIG_DEBUG_VM=y
 655 +CONFIG_DEBUG_MEMORY_INIT=y
 656 +CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
 657 +CONFIG_DEBUG_STACKOVERFLOW=y
 658 +CONFIG_HAVE_ARCH_KMEMCHECK=y
 659 +CONFIG_HAVE_ARCH_KASAN=y
 660 +CONFIG_KASAN=y
 661 +CONFIG_KASAN_INLINE=y
 662 +CONFIG_UBSAN=y
 663 +CONFIG_UBSAN_SANITIZE_ALL=y
 664 +CONFIG_UBSAN_NO_ALIGNMENT=y
 665 +CONFIG_UBSAN_NULL=y
 666 +CONFIG_DEBUG_KMEMLEAK=y
 667 +CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=8192
 668 +CONFIG_DEBUG_STACK_USAGE=y
 669 +CONFIG_DEBUG_SHIRQ=y
 670 +CONFIG_WQ_WATCHDOG=y
 671 +CONFIG_SCHED_DEBUG=y
 672 +CONFIG_SCHED_INFO=y
 673 +CONFIG_SCHEDSTATS=y
 674 +CONFIG_SCHED_STACK_END_CHECK=y
 675 +CONFIG_DEBUG_TIMEKEEPING=y
 676 +CONFIG_TIMER_STATS=y
 677 +CONFIG_DEBUG_PREEMPT=y
 678 +CONFIG_DEBUG_RT_MUTEXES=y
 679 +CONFIG_DEBUG_SPINLOCK=y
 680 +CONFIG_DEBUG_MUTEXES=y
 681 +CONFIG_DEBUG_LOCK_ALLOC=y
 682 +CONFIG_PROVE_LOCKING=y
 683 +CONFIG_LOCKDEP=y
 684 +CONFIG_DEBUG_ATOMIC_SLEEP=y
 685 +CONFIG_TRACE_IRQFLAGS=y
 686 +CONFIG_DEBUG_BUGVERBOSE=y
 687 +CONFIG_DEBUG_LIST=y
 688 +CONFIG_DEBUG_PI_LIST=y
 689 +CONFIG_PROVE_RCU=y
 690 +CONFIG_SPARSE_RCU_POINTER=y
 691 +CONFIG_RCU_CPU_STALL_TIMEOUT=21
 692 +CONFIG_RCU_TRACE=y
 693 +CONFIG_RCU_EQS_DEBUG=y
 694 +CONFIG_USER_STACKTRACE_SUPPORT=y
 695 +CONFIG_DEBUG_SG=y
 696 +CONFIG_DEBUG_NOTIFIERS=y
 697 +CONFIG_DOUBLEFAULT=y
 698 +CONFIG_X86_DEBUG_FPU=y
 699 +CONFIG_DEBUG_SECTION_MISMATCH=y
 700 +CONFIG_DEBUG_PAGEALLOC=y
 701 +CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT=y
 702 +CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
 703 --- /dev/null
 704 +++ b/tools/testing/selftests/wireguard/qemu/init.c
 705 @@ -0,0 +1,284 @@
 706 +// SPDX-License-Identifier: GPL-2.0
 707 +/*
 708 + * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 709 + */
 710 +
 711 +#define _GNU_SOURCE
 712 +#include <unistd.h>
 713 +#include <errno.h>
 714 +#include <string.h>
 715 +#include <stdio.h>
 716 +#include <stdlib.h>
 717 +#include <stdbool.h>
 718 +#include <fcntl.h>
 719 +#include <sys/wait.h>
 720 +#include <sys/mount.h>
 721 +#include <sys/types.h>
 722 +#include <sys/stat.h>
 723 +#include <sys/types.h>
 724 +#include <sys/io.h>
 725 +#include <sys/ioctl.h>
 726 +#include <sys/reboot.h>
 727 +#include <sys/utsname.h>
 728 +#include <sys/sendfile.h>
 729 +#include <linux/random.h>
 730 +#include <linux/version.h>
 731 +
 732 +__attribute__((noreturn)) static void poweroff(void)
 733 +{
 734 +       fflush(stdout);
 735 +       fflush(stderr);
 736 +       reboot(RB_AUTOBOOT);
 737 +       sleep(30);
 738 +       fprintf(stderr, "\x1b[37m\x1b[41m\x1b[1mFailed to power off!!!\x1b[0m\n");
 739 +       exit(1);
 740 +}
 741 +
 742 +static void panic(const char *what)
 743 +{
 744 +       fprintf(stderr, "\n\n\x1b[37m\x1b[41m\x1b[1mSOMETHING WENT HORRIBLY WRONG\x1b[0m\n\n    \x1b[31m\x1b[1m%s: %s\x1b[0m\n\n\x1b[37m\x1b[44m\x1b[1mPower off...\x1b[0m\n\n", what, strerror(errno));
 745 +       poweroff();
 746 +}
 747 +
 748 +#define pretty_message(msg) puts("\x1b[32m\x1b[1m" msg "\x1b[0m")
 749 +
 750 +static void print_banner(void)
 751 +{
 752 +       struct utsname utsname;
 753 +       int len;
 754 +
 755 +       if (uname(&utsname) < 0)
 756 +               panic("uname");
 757 +
 758 +       len = strlen("    WireGuard Test Suite on       ") + strlen(utsname.sysname) + strlen(utsname.release) + strlen(utsname.machine);
 759 +       printf("\x1b[45m\x1b[33m\x1b[1m%*.s\x1b[0m\n\x1b[45m\x1b[33m\x1b[1m    WireGuard Test Suite on %s %s %s    \x1b[0m\n\x1b[45m\x1b[33m\x1b[1m%*.s\x1b[0m\n\n", len, "", utsname.sysname, utsname.release, utsname.machine, len, "");
 760 +}
 761 +
 762 +static void seed_rng(void)
 763 +{
 764 +       int fd;
 765 +       struct {
 766 +               int entropy_count;
 767 +               int buffer_size;
 768 +               unsigned char buffer[256];
 769 +       } entropy = {
 770 +               .entropy_count = sizeof(entropy.buffer) * 8,
 771 +               .buffer_size = sizeof(entropy.buffer),
 772 +               .buffer = "Adding real entropy is not actually important for these tests. Don't try this at home, kids!"
 773 +       };
 774 +
 775 +       if (mknod("/dev/urandom", S_IFCHR | 0644, makedev(1, 9)))
 776 +               panic("mknod(/dev/urandom)");
 777 +       fd = open("/dev/urandom", O_WRONLY);
 778 +       if (fd < 0)
 779 +               panic("open(urandom)");
 780 +       for (int i = 0; i < 256; ++i) {
 781 +               if (ioctl(fd, RNDADDENTROPY, &entropy) < 0)
 782 +                       panic("ioctl(urandom)");
 783 +       }
 784 +       close(fd);
 785 +}
 786 +
 787 +static void mount_filesystems(void)
 788 +{
 789 +       pretty_message("[+] Mounting filesystems...");
 790 +       mkdir("/dev", 0755);
 791 +       mkdir("/proc", 0755);
 792 +       mkdir("/sys", 0755);
 793 +       mkdir("/tmp", 0755);
 794 +       mkdir("/run", 0755);
 795 +       mkdir("/var", 0755);
 796 +       if (mount("none", "/dev", "devtmpfs", 0, NULL))
 797 +               panic("devtmpfs mount");
 798 +       if (mount("none", "/proc", "proc", 0, NULL))
 799 +               panic("procfs mount");
 800 +       if (mount("none", "/sys", "sysfs", 0, NULL))
 801 +               panic("sysfs mount");
 802 +       if (mount("none", "/tmp", "tmpfs", 0, NULL))
 803 +               panic("tmpfs mount");
 804 +       if (mount("none", "/run", "tmpfs", 0, NULL))
 805 +               panic("tmpfs mount");
 806 +       if (mount("none", "/sys/kernel/debug", "debugfs", 0, NULL))
 807 +               ; /* Not a problem if it fails.*/
 808 +       if (symlink("/run", "/var/run"))
 809 +               panic("run symlink");
 810 +       if (symlink("/proc/self/fd", "/dev/fd"))
 811 +               panic("fd symlink");
 812 +}
 813 +
 814 +static void enable_logging(void)
 815 +{
 816 +       int fd;
 817 +       pretty_message("[+] Enabling logging...");
 818 +       fd = open("/proc/sys/kernel/printk", O_WRONLY);
 819 +       if (fd >= 0) {
 820 +               if (write(fd, "9\n", 2) != 2)
 821 +                       panic("write(printk)");
 822 +               close(fd);
 823 +       }
 824 +       fd = open("/proc/sys/debug/exception-trace", O_WRONLY);
 825 +       if (fd >= 0) {
 826 +               if (write(fd, "1\n", 2) != 2)
 827 +                       panic("write(exception-trace)");
 828 +               close(fd);
 829 +       }
 830 +       fd = open("/proc/sys/kernel/panic_on_warn", O_WRONLY);
 831 +       if (fd >= 0) {
 832 +               if (write(fd, "1\n", 2) != 2)
 833 +                       panic("write(panic_on_warn)");
 834 +               close(fd);
 835 +       }
 836 +}
 837 +
 838 +static void kmod_selftests(void)
 839 +{
 840 +       FILE *file;
 841 +       char line[2048], *start, *pass;
 842 +       bool success = true;
 843 +       pretty_message("[+] Module self-tests:");
 844 +       file = fopen("/proc/kmsg", "r");
 845 +       if (!file)
 846 +               panic("fopen(kmsg)");
 847 +       if (fcntl(fileno(file), F_SETFL, O_NONBLOCK) < 0)
 848 +               panic("fcntl(kmsg, nonblock)");
 849 +       while (fgets(line, sizeof(line), file)) {
 850 +               start = strstr(line, "wireguard: ");
 851 +               if (!start)
 852 +                       continue;
 853 +               start += 11;
 854 +               *strchrnul(start, '\n') = '\0';
 855 +               if (strstr(start, "www.wireguard.com"))
 856 +                       break;
 857 +               pass = strstr(start, ": pass");
 858 +               if (!pass || pass[6] != '\0') {
 859 +                       success = false;
 860 +                       printf(" \x1b[31m*  %s\x1b[0m\n", start);
 861 +               } else
 862 +                       printf(" \x1b[32m*  %s\x1b[0m\n", start);
 863 +       }
 864 +       fclose(file);
 865 +       if (!success) {
 866 +               puts("\x1b[31m\x1b[1m[-] Tests failed! \u2639\x1b[0m");
 867 +               poweroff();
 868 +       }
 869 +}
 870 +
 871 +static void launch_tests(void)
 872 +{
 873 +       char cmdline[4096], *success_dev;
 874 +       int status, fd;
 875 +       pid_t pid;
 876 +
 877 +       pretty_message("[+] Launching tests...");
 878 +       pid = fork();
 879 +       if (pid == -1)
 880 +               panic("fork");
 881 +       else if (pid == 0) {
 882 +               execl("/init.sh", "init", NULL);
 883 +               panic("exec");
 884 +       }
 885 +       if (waitpid(pid, &status, 0) < 0)
 886 +               panic("waitpid");
 887 +       if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
 888 +               pretty_message("[+] Tests successful! :-)");
 889 +               fd = open("/proc/cmdline", O_RDONLY);
 890 +               if (fd < 0)
 891 +                       panic("open(/proc/cmdline)");
 892 +               if (read(fd, cmdline, sizeof(cmdline) - 1) <= 0)
 893 +                       panic("read(/proc/cmdline)");
 894 +               cmdline[sizeof(cmdline) - 1] = '\0';
 895 +               for (success_dev = strtok(cmdline, " \n"); success_dev; success_dev = strtok(NULL, " \n")) {
 896 +                       if (strncmp(success_dev, "wg.success=", 11))
 897 +                               continue;
 898 +                       memcpy(success_dev + 11 - 5, "/dev/", 5);
 899 +                       success_dev += 11 - 5;
 900 +                       break;
 901 +               }
 902 +               if (!success_dev || !strlen(success_dev))
 903 +                       panic("Unable to find success device");
 904 +
 905 +               fd = open(success_dev, O_WRONLY);
 906 +               if (fd < 0)
 907 +                       panic("open(success_dev)");
 908 +               if (write(fd, "success\n", 8) != 8)
 909 +                       panic("write(success_dev)");
 910 +               close(fd);
 911 +       } else {
 912 +               const char *why = "unknown cause";
 913 +               int what = -1;
 914 +
 915 +               if (WIFEXITED(status)) {
 916 +                       why = "exit code";
 917 +                       what = WEXITSTATUS(status);
 918 +               } else if (WIFSIGNALED(status)) {
 919 +                       why = "signal";
 920 +                       what = WTERMSIG(status);
 921 +               }
 922 +               printf("\x1b[31m\x1b[1m[-] Tests failed with %s %d! \u2639\x1b[0m\n", why, what);
 923 +       }
 924 +}
 925 +
 926 +static void ensure_console(void)
 927 +{
 928 +       for (unsigned int i = 0; i < 1000; ++i) {
 929 +               int fd = open("/dev/console", O_RDWR);
 930 +               if (fd < 0) {
 931 +                       usleep(50000);
 932 +                       continue;
 933 +               }
 934 +               dup2(fd, 0);
 935 +               dup2(fd, 1);
 936 +               dup2(fd, 2);
 937 +               close(fd);
 938 +               if (write(1, "\0\0\0\0\n", 5) == 5)
 939 +                       return;
 940 +       }
 941 +       panic("Unable to open console device");
 942 +}
 943 +
 944 +static void clear_leaks(void)
 945 +{
 946 +       int fd;
 947 +
 948 +       fd = open("/sys/kernel/debug/kmemleak", O_WRONLY);
 949 +       if (fd < 0)
 950 +               return;
 951 +       pretty_message("[+] Starting memory leak detection...");
 952 +       write(fd, "clear\n", 5);
 953 +       close(fd);
 954 +}
 955 +
 956 +static void check_leaks(void)
 957 +{
 958 +       int fd;
 959 +
 960 +       fd = open("/sys/kernel/debug/kmemleak", O_WRONLY);
 961 +       if (fd < 0)
 962 +               return;
 963 +       pretty_message("[+] Scanning for memory leaks...");
 964 +       sleep(2); /* Wait for any grace periods. */
 965 +       write(fd, "scan\n", 5);
 966 +       close(fd);
 967 +
 968 +       fd = open("/sys/kernel/debug/kmemleak", O_RDONLY);
 969 +       if (fd < 0)
 970 +               return;
 971 +       if (sendfile(1, fd, NULL, 0x7ffff000) > 0)
 972 +               panic("Memory leaks encountered");
 973 +       close(fd);
 974 +}
 975 +
 976 +int main(int argc, char *argv[])
 977 +{
 978 +       seed_rng();
 979 +       ensure_console();
 980 +       print_banner();
 981 +       mount_filesystems();
 982 +       kmod_selftests();
 983 +       enable_logging();
 984 +       clear_leaks();
 985 +       launch_tests();
 986 +       check_leaks();
 987 +       poweroff();
 988 +       return 1;
 989 +}
 990 --- /dev/null
 991 +++ b/tools/testing/selftests/wireguard/qemu/kernel.config
 992 @@ -0,0 +1,86 @@
 993 +CONFIG_LOCALVERSION=""
 994 +CONFIG_NET=y
 995 +CONFIG_NETDEVICES=y
 996 +CONFIG_NET_CORE=y
 997 +CONFIG_NET_IPIP=y
 998 +CONFIG_DUMMY=y
 999 +CONFIG_VETH=y
1000 +CONFIG_MULTIUSER=y
1001 +CONFIG_NAMESPACES=y
1002 +CONFIG_NET_NS=y
1003 +CONFIG_UNIX=y
1004 +CONFIG_INET=y
1005 +CONFIG_IPV6=y
1006 +CONFIG_NETFILTER=y
1007 +CONFIG_NETFILTER_ADVANCED=y
1008 +CONFIG_NF_CONNTRACK=y
1009 +CONFIG_NF_NAT=y
1010 +CONFIG_NETFILTER_XTABLES=y
1011 +CONFIG_NETFILTER_XT_NAT=y
1012 +CONFIG_NETFILTER_XT_MATCH_LENGTH=y
1013 +CONFIG_NF_CONNTRACK_IPV4=y
1014 +CONFIG_NF_NAT_IPV4=y
1015 +CONFIG_IP_NF_IPTABLES=y
1016 +CONFIG_IP_NF_FILTER=y
1017 +CONFIG_IP_NF_NAT=y
1018 +CONFIG_IP_ADVANCED_ROUTER=y
1019 +CONFIG_IP_MULTIPLE_TABLES=y
1020 +CONFIG_IPV6_MULTIPLE_TABLES=y
1021 +CONFIG_TTY=y
1022 +CONFIG_BINFMT_ELF=y
1023 +CONFIG_BINFMT_SCRIPT=y
1024 +CONFIG_VDSO=y
1025 +CONFIG_VIRTUALIZATION=y
1026 +CONFIG_HYPERVISOR_GUEST=y
1027 +CONFIG_PARAVIRT=y
1028 +CONFIG_KVM_GUEST=y
1029 +CONFIG_PARAVIRT_SPINLOCKS=y
1030 +CONFIG_PRINTK=y
1031 +CONFIG_KALLSYMS=y
1032 +CONFIG_BUG=y
1033 +CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
1034 +CONFIG_EMBEDDED=n
1035 +CONFIG_BASE_FULL=y
1036 +CONFIG_FUTEX=y
1037 +CONFIG_SHMEM=y
1038 +CONFIG_SLUB=y
1039 +CONFIG_SPARSEMEM_VMEMMAP=y
1040 +CONFIG_SMP=y
1041 +CONFIG_SCHED_SMT=y
1042 +CONFIG_SCHED_MC=y
1043 +CONFIG_NUMA=y
1044 +CONFIG_PREEMPT=y
1045 +CONFIG_NO_HZ=y
1046 +CONFIG_NO_HZ_IDLE=y
1047 +CONFIG_NO_HZ_FULL=n
1048 +CONFIG_HZ_PERIODIC=n
1049 +CONFIG_HIGH_RES_TIMERS=y
1050 +CONFIG_ARCH_RANDOM=y
1051 +CONFIG_FILE_LOCKING=y
1052 +CONFIG_POSIX_TIMERS=y
1053 +CONFIG_DEVTMPFS=y
1054 +CONFIG_PROC_FS=y
1055 +CONFIG_PROC_SYSCTL=y
1056 +CONFIG_SYSFS=y
1057 +CONFIG_TMPFS=y
1058 +CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
1059 +CONFIG_PRINTK_TIME=y
1060 +CONFIG_BLK_DEV_INITRD=y
1061 +CONFIG_LEGACY_VSYSCALL_NONE=y
1062 +CONFIG_KERNEL_GZIP=y
1063 +CONFIG_PANIC_ON_OOPS=y
1064 +CONFIG_BUG_ON_DATA_CORRUPTION=y
1065 +CONFIG_LOCKUP_DETECTOR=y
1066 +CONFIG_SOFTLOCKUP_DETECTOR=y
1067 +CONFIG_HARDLOCKUP_DETECTOR=y
1068 +CONFIG_WQ_WATCHDOG=y
1069 +CONFIG_DETECT_HUNG_TASK=y
1070 +CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
1071 +CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
1072 +CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
1073 +CONFIG_PANIC_TIMEOUT=-1
1074 +CONFIG_STACKTRACE=y
1075 +CONFIG_EARLY_PRINTK=y
1076 +CONFIG_GDB_SCRIPTS=y
1077 +CONFIG_WIREGUARD=y
1078 +CONFIG_WIREGUARD_DEBUG=y