target/linux/generic/backport-5.4/080-wireguard-0074-wireguard-selftests-import-harness-makefile-for-test.patch

   1 From e333013ee167444adefd8a292e401b70e97dd4b2 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 074/124] wireguard: selftests: import harness makefile for
   5  test suite
   6
   7 commit 65d88d04114bca7d85faebd5fed61069cb2b632c upstream.
   8
   9 WireGuard has been using this on build.wireguard.com for the last
  10 several years with considerable success. It allows for very quick and
  11 iterative development cycles, and supports several platforms.
  12
  13 To run the test suite on your current platform in QEMU:
  14
  15   $ make -C tools/testing/selftests/wireguard/qemu -j$(nproc)
  16
  17 To run it with KASAN and such turned on:
  18
  19   $ DEBUG_KERNEL=yes make -C tools/testing/selftests/wireguard/qemu -j$(nproc)
  20
  21 To run it emulated for another platform in QEMU:
  22
  23   $ ARCH=arm make -C tools/testing/selftests/wireguard/qemu -j$(nproc)
  24
  25 At the moment, we support aarch64_be, aarch64, arm, armeb, i686, m68k,
  26 mips64, mips64el, mips, mipsel, powerpc64le, powerpc, and x86_64.
  27
  28 The system supports incremental rebuilding, so it should be very fast to
  29 change a single file and then test it out and have immediate feedback.
  30
  31 This requires for the right toolchain and qemu to be installed prior.
  32 I've had success with those from musl.cc.
  33
  34 This is tailored for WireGuard at the moment, though later projects
  35 might generalize it for other network testing.
  36
  37 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
  38 Signed-off-by: David S. Miller <davem@davemloft.net>
  39 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
  40 ---
  41  .../selftests/wireguard/qemu/.gitignore       |   2 +
  42  .../testing/selftests/wireguard/qemu/Makefile | 385 ++++++++++++++++++
  43  .../wireguard/qemu/arch/aarch64.config        |   5 +
  44  .../wireguard/qemu/arch/aarch64_be.config     |   6 +
  45  .../selftests/wireguard/qemu/arch/arm.config  |   9 +
  46  .../wireguard/qemu/arch/armeb.config          |  10 +
  47  .../selftests/wireguard/qemu/arch/i686.config |   5 +
  48  .../selftests/wireguard/qemu/arch/m68k.config |   9 +
  49  .../selftests/wireguard/qemu/arch/mips.config |  11 +
  50  .../wireguard/qemu/arch/mips64.config         |  14 +
  51  .../wireguard/qemu/arch/mips64el.config       |  15 +
  52  .../wireguard/qemu/arch/mipsel.config         |  12 +
  53  .../wireguard/qemu/arch/powerpc.config        |  10 +
  54  .../wireguard/qemu/arch/powerpc64le.config    |  12 +
  55  .../wireguard/qemu/arch/x86_64.config         |   5 +
  56  .../selftests/wireguard/qemu/debug.config     |  67 +++
  57  tools/testing/selftests/wireguard/qemu/init.c | 284 +++++++++++++
  58  .../selftests/wireguard/qemu/kernel.config    |  86 ++++
  59  18 files changed, 947 insertions(+)
  60  create mode 100644 tools/testing/selftests/wireguard/qemu/.gitignore
  61  create mode 100644 tools/testing/selftests/wireguard/qemu/Makefile
  62  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/aarch64.config
  63  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/aarch64_be.config
  64  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/arm.config
  65  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/armeb.config
  66  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/i686.config
  67  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/m68k.config
  68  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/mips.config
  69  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/mips64.config
  70  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/mips64el.config
  71  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/mipsel.config
  72  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/powerpc.config
  73  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
  74  create mode 100644 tools/testing/selftests/wireguard/qemu/arch/x86_64.config
  75  create mode 100644 tools/testing/selftests/wireguard/qemu/debug.config
  76  create mode 100644 tools/testing/selftests/wireguard/qemu/init.c
  77  create mode 100644 tools/testing/selftests/wireguard/qemu/kernel.config
  78
  79 --- /dev/null
  80 +++ b/tools/testing/selftests/wireguard/qemu/.gitignore
  81 @@ -0,0 +1,2 @@
  82 +build/
  83 +distfiles/
  84 --- /dev/null
  85 +++ b/tools/testing/selftests/wireguard/qemu/Makefile
  86 @@ -0,0 +1,385 @@
  87 +# SPDX-License-Identifier: GPL-2.0
  88 +#
  89 +# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  90 +
  91 +PWD := $(shell pwd)
  92 +
  93 +CHOST := $(shell gcc -dumpmachine)
  94 +ifneq (,$(ARCH))
  95 +CBUILD := $(subst -gcc,,$(lastword $(subst /, ,$(firstword $(wildcard $(foreach bindir,$(subst :, ,$(PATH)),$(bindir)/$(ARCH)-*-gcc))))))
  96 +ifeq (,$(CBUILD))
  97 +$(error The toolchain for $(ARCH) is not installed)
  98 +endif
  99 +else
 100 +CBUILD := $(CHOST)
 101 +ARCH := $(firstword $(subst -, ,$(CBUILD)))
 102 +endif
 103 +
 104 +# Set these from the environment to override
 105 +KERNEL_PATH ?= $(PWD)/../../../../..
 106 +BUILD_PATH ?= $(PWD)/build/$(ARCH)
 107 +DISTFILES_PATH ?= $(PWD)/distfiles
 108 +NR_CPUS ?= 4
 109 +
 110 +MIRROR := https://download.wireguard.com/qemu-test/distfiles/
 111 +
 112 +default: qemu
 113 +
 114 +# variable name, tarball project name, version, tarball extension, default URI base
 115 +define tar_download =
 116 +$(1)_VERSION := $(3)
 117 +$(1)_NAME := $(2)-$$($(1)_VERSION)
 118 +$(1)_TAR := $(DISTFILES_PATH)/$$($(1)_NAME)$(4)
 119 +$(1)_PATH := $(BUILD_PATH)/$$($(1)_NAME)
 120 +$(call file_download,$$($(1)_NAME)$(4),$(5),$(6))
 121 +endef
 122 +
 123 +define file_download =
 124 +$(DISTFILES_PATH)/$(1):
 125 +       mkdir -p $(DISTFILES_PATH)
 126 +       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 $$@.tmp'
 127 +       if echo "$(3)  $$@.tmp" | sha256sum -c -; then mv $$@.tmp $$@; else rm -f $$@.tmp; exit 71; fi
 128 +endef
 129 +
 130 +$(eval $(call tar_download,MUSL,musl,1.1.20,.tar.gz,https://www.musl-libc.org/releases/,44be8771d0e6c6b5f82dd15662eb2957c9a3173a19a8b49966ac0542bbd40d61))
 131 +$(eval $(call tar_download,LIBMNL,libmnl,1.0.4,.tar.bz2,https://www.netfilter.org/projects/libmnl/files/,171f89699f286a5854b72b91d06e8f8e3683064c5901fb09d954a9ab6f551f81))
 132 +$(eval $(call tar_download,IPERF,iperf,3.1.7,.tar.gz,http://downloads.es.net/pub/iperf/,a4ef73406fe92250602b8da2ae89ec53211f805df97a1d1d629db5a14043734f))
 133 +$(eval $(call tar_download,BASH,bash,5.0,.tar.gz,https://ftp.gnu.org/gnu/bash/,b4a80f2ac66170b2913efbfb9f2594f1f76c7b1afd11f799e22035d63077fb4d))
 134 +$(eval $(call tar_download,IPROUTE2,iproute2,5.1.0,.tar.gz,https://www.kernel.org/pub/linux/utils/net/iproute2/,9b43707d6075ecdca14803ca8ce0c8553848c49fa1586d12fd508d66577243f2))
 135 +$(eval $(call tar_download,IPTABLES,iptables,1.6.1,.tar.bz2,https://www.netfilter.org/projects/iptables/files/,0fc2d7bd5d7be11311726466789d4c65fb4c8e096c9182b56ce97440864f0cf5))
 136 +$(eval $(call tar_download,NMAP,nmap,7.60,.tar.bz2,https://nmap.org/dist/,a8796ecc4fa6c38aad6139d9515dc8113023a82e9d787e5a5fb5fa1b05516f21))
 137 +$(eval $(call tar_download,IPUTILS,iputils,s20161105,.tar.gz,https://github.com/iputils/iputils/archive/s20161105.tar.gz/#,f813092f03d17294fd23544b129b95cdb87fe19f7970a51908a6b88509acad8a))
 138 +$(eval $(call tar_download,WIREGUARD_TOOLS,WireGuard,0.0.20191212,.tar.xz,https://git.zx2c4.com/WireGuard/snapshot/,b0d718380f7a8822b2f12d75e462fa4eafa3a77871002981f367cd4fe2a1b071))
 139 +
 140 +KERNEL_BUILD_PATH := $(BUILD_PATH)/kernel$(if $(findstring yes,$(DEBUG_KERNEL)),-debug)
 141 +rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))
 142 +WIREGUARD_SOURCES := $(call rwildcard,$(KERNEL_PATH)/drivers/net/wireguard/,*)
 143 +
 144 +export CFLAGS ?= -O3 -pipe
 145 +export LDFLAGS ?=
 146 +export CPPFLAGS := -I$(BUILD_PATH)/include
 147 +
 148 +ifeq ($(CHOST),$(CBUILD))
 149 +CROSS_COMPILE_FLAG := --host=$(CHOST)
 150 +NOPIE_GCC := gcc -fno-PIE
 151 +CFLAGS += -march=native
 152 +STRIP := strip
 153 +else
 154 +$(info Cross compilation: building for $(CBUILD) using $(CHOST))
 155 +CROSS_COMPILE_FLAG := --build=$(CBUILD) --host=$(CHOST)
 156 +export CROSS_COMPILE=$(CBUILD)-
 157 +NOPIE_GCC := $(CBUILD)-gcc -fno-PIE
 158 +STRIP := $(CBUILD)-strip
 159 +endif
 160 +ifeq ($(ARCH),aarch64)
 161 +QEMU_ARCH := aarch64
 162 +KERNEL_ARCH := arm64
 163 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm64/boot/Image
 164 +ifeq ($(CHOST),$(CBUILD))
 165 +QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
 166 +else
 167 +QEMU_MACHINE := -cpu cortex-a53 -machine virt
 168 +CFLAGS += -march=armv8-a -mtune=cortex-a53
 169 +endif
 170 +else ifeq ($(ARCH),aarch64_be)
 171 +QEMU_ARCH := aarch64
 172 +KERNEL_ARCH := arm64
 173 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm64/boot/Image
 174 +ifeq ($(CHOST),$(CBUILD))
 175 +QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
 176 +else
 177 +QEMU_MACHINE := -cpu cortex-a53 -machine virt
 178 +CFLAGS += -march=armv8-a -mtune=cortex-a53
 179 +endif
 180 +else ifeq ($(ARCH),arm)
 181 +QEMU_ARCH := arm
 182 +KERNEL_ARCH := arm
 183 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm/boot/zImage
 184 +ifeq ($(CHOST),$(CBUILD))
 185 +QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
 186 +else
 187 +QEMU_MACHINE := -cpu cortex-a15 -machine virt
 188 +CFLAGS += -march=armv7-a -mtune=cortex-a15 -mabi=aapcs-linux
 189 +endif
 190 +else ifeq ($(ARCH),armeb)
 191 +QEMU_ARCH := arm
 192 +KERNEL_ARCH := arm
 193 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm/boot/zImage
 194 +ifeq ($(CHOST),$(CBUILD))
 195 +QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
 196 +else
 197 +QEMU_MACHINE := -cpu cortex-a15 -machine virt
 198 +CFLAGS += -march=armv7-a -mabi=aapcs-linux # We don't pass -mtune=cortex-a15 due to a compiler bug on big endian.
 199 +LDFLAGS += -Wl,--be8
 200 +endif
 201 +else ifeq ($(ARCH),x86_64)
 202 +QEMU_ARCH := x86_64
 203 +KERNEL_ARCH := x86_64
 204 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/x86/boot/bzImage
 205 +ifeq ($(CHOST),$(CBUILD))
 206 +QEMU_MACHINE := -cpu host -machine q35,accel=kvm
 207 +else
 208 +QEMU_MACHINE := -cpu Skylake-Server -machine q35
 209 +CFLAGS += -march=skylake-avx512
 210 +endif
 211 +else ifeq ($(ARCH),i686)
 212 +QEMU_ARCH := i386
 213 +KERNEL_ARCH := x86
 214 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/x86/boot/bzImage
 215 +ifeq ($(subst i686,x86_64,$(CBUILD)),$(CHOST))
 216 +QEMU_MACHINE := -cpu host -machine q35,accel=kvm
 217 +else
 218 +QEMU_MACHINE := -cpu coreduo -machine q35
 219 +CFLAGS += -march=prescott
 220 +endif
 221 +else ifeq ($(ARCH),mips64)
 222 +QEMU_ARCH := mips64
 223 +KERNEL_ARCH := mips
 224 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 225 +ifeq ($(CHOST),$(CBUILD))
 226 +QEMU_MACHINE := -cpu host -machine malta,accel=kvm
 227 +CFLAGS += -EB
 228 +else
 229 +QEMU_MACHINE := -cpu MIPS64R2-generic -machine malta -smp 1
 230 +CFLAGS += -march=mips64r2 -EB
 231 +endif
 232 +else ifeq ($(ARCH),mips64el)
 233 +QEMU_ARCH := mips64el
 234 +KERNEL_ARCH := mips
 235 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 236 +ifeq ($(CHOST),$(CBUILD))
 237 +QEMU_MACHINE := -cpu host -machine malta,accel=kvm
 238 +CFLAGS += -EL
 239 +else
 240 +QEMU_MACHINE := -cpu MIPS64R2-generic -machine malta -smp 1
 241 +CFLAGS += -march=mips64r2 -EL
 242 +endif
 243 +else ifeq ($(ARCH),mips)
 244 +QEMU_ARCH := mips
 245 +KERNEL_ARCH := mips
 246 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 247 +ifeq ($(CHOST),$(CBUILD))
 248 +QEMU_MACHINE := -cpu host -machine malta,accel=kvm
 249 +CFLAGS += -EB
 250 +else
 251 +QEMU_MACHINE := -cpu 24Kf -machine malta -smp 1
 252 +CFLAGS += -march=mips32r2 -EB
 253 +endif
 254 +else ifeq ($(ARCH),mipsel)
 255 +QEMU_ARCH := mipsel
 256 +KERNEL_ARCH := mips
 257 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 258 +ifeq ($(CHOST),$(CBUILD))
 259 +QEMU_MACHINE := -cpu host -machine malta,accel=kvm
 260 +CFLAGS += -EL
 261 +else
 262 +QEMU_MACHINE := -cpu 24Kf -machine malta -smp 1
 263 +CFLAGS += -march=mips32r2 -EL
 264 +endif
 265 +else ifeq ($(ARCH),powerpc64le)
 266 +QEMU_ARCH := ppc64
 267 +KERNEL_ARCH := powerpc
 268 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 269 +ifeq ($(CHOST),$(CBUILD))
 270 +QEMU_MACHINE := -cpu host,accel=kvm -machine pseries
 271 +else
 272 +QEMU_MACHINE := -machine pseries
 273 +endif
 274 +CFLAGS += -mcpu=powerpc64le -mlong-double-64
 275 +else ifeq ($(ARCH),powerpc)
 276 +QEMU_ARCH := ppc
 277 +KERNEL_ARCH := powerpc
 278 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/powerpc/boot/uImage
 279 +ifeq ($(CHOST),$(CBUILD))
 280 +QEMU_MACHINE := -cpu host,accel=kvm -machine ppce500
 281 +else
 282 +QEMU_MACHINE := -machine ppce500
 283 +endif
 284 +CFLAGS += -mcpu=powerpc -mlong-double-64 -msecure-plt
 285 +else ifeq ($(ARCH),m68k)
 286 +QEMU_ARCH := m68k
 287 +KERNEL_ARCH := m68k
 288 +KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 289 +ifeq ($(CHOST),$(CBUILD))
 290 +QEMU_MACHINE := -cpu host,accel=kvm -machine q800
 291 +else
 292 +QEMU_MACHINE := -machine q800
 293 +endif
 294 +else
 295 +$(error I only build: x86_64, i686, arm, armeb, aarch64, aarch64_be, mips, mipsel, mips64, mips64el, powerpc64le, powerpc, m68k)
 296 +endif
 297 +
 298 +REAL_CC := $(CBUILD)-gcc
 299 +MUSL_CC := $(BUILD_PATH)/musl-gcc
 300 +export CC := $(MUSL_CC)
 301 +USERSPACE_DEPS := $(MUSL_CC) $(BUILD_PATH)/include/.installed $(BUILD_PATH)/include/linux/.installed
 302 +
 303 +build: $(KERNEL_BZIMAGE)
 304 +qemu: $(KERNEL_BZIMAGE)
 305 +       rm -f $(BUILD_PATH)/result
 306 +       timeout --foreground 20m qemu-system-$(QEMU_ARCH) \
 307 +               -nodefaults \
 308 +               -nographic \
 309 +               -smp $(NR_CPUS) \
 310 +               $(QEMU_MACHINE) \
 311 +               -m $$(grep -q CONFIG_DEBUG_KMEMLEAK=y $(KERNEL_BUILD_PATH)/.config && echo 1G || echo 256M) \
 312 +               -serial stdio \
 313 +               -serial file:$(BUILD_PATH)/result \
 314 +               -no-reboot \
 315 +               -monitor none \
 316 +               -kernel $<
 317 +       grep -Fq success $(BUILD_PATH)/result
 318 +
 319 +$(BUILD_PATH)/init-cpio-spec.txt:
 320 +       mkdir -p $(BUILD_PATH)
 321 +       echo "file /init $(BUILD_PATH)/init 755 0 0" > $@
 322 +       echo "file /init.sh $(PWD)/../netns.sh 755 0 0" >> $@
 323 +       echo "dir /dev 755 0 0" >> $@
 324 +       echo "nod /dev/console 644 0 0 c 5 1" >> $@
 325 +       echo "dir /bin 755 0 0" >> $@
 326 +       echo "file /bin/iperf3 $(IPERF_PATH)/src/iperf3 755 0 0" >> $@
 327 +       echo "file /bin/wg $(WIREGUARD_TOOLS_PATH)/src/tools/wg 755 0 0" >> $@
 328 +       echo "file /bin/bash $(BASH_PATH)/bash 755 0 0" >> $@
 329 +       echo "file /bin/ip $(IPROUTE2_PATH)/ip/ip 755 0 0" >> $@
 330 +       echo "file /bin/ss $(IPROUTE2_PATH)/misc/ss 755 0 0" >> $@
 331 +       echo "file /bin/ping $(IPUTILS_PATH)/ping 755 0 0" >> $@
 332 +       echo "file /bin/ncat $(NMAP_PATH)/ncat/ncat 755 0 0" >> $@
 333 +       echo "file /bin/xtables-multi $(IPTABLES_PATH)/iptables/xtables-multi 755 0 0" >> $@
 334 +       echo "slink /bin/iptables xtables-multi 777 0 0" >> $@
 335 +       echo "slink /bin/ping6 ping 777 0 0" >> $@
 336 +       echo "dir /lib 755 0 0" >> $@
 337 +       echo "file /lib/libc.so $(MUSL_PATH)/lib/libc.so 755 0 0" >> $@
 338 +       echo "slink /lib/ld-linux.so.1 libc.so 777 0 0" >> $@
 339 +
 340 +$(KERNEL_BUILD_PATH)/.config: kernel.config arch/$(ARCH).config
 341 +       mkdir -p $(KERNEL_BUILD_PATH)
 342 +       cp kernel.config $(KERNEL_BUILD_PATH)/minimal.config
 343 +       printf 'CONFIG_NR_CPUS=$(NR_CPUS)\nCONFIG_INITRAMFS_SOURCE="$(BUILD_PATH)/init-cpio-spec.txt"\n' >> $(KERNEL_BUILD_PATH)/minimal.config
 344 +       cat arch/$(ARCH).config >> $(KERNEL_BUILD_PATH)/minimal.config
 345 +       $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) allnoconfig
 346 +       cd $(KERNEL_BUILD_PATH) && ARCH=$(KERNEL_ARCH) $(KERNEL_PATH)/scripts/kconfig/merge_config.sh -n $(KERNEL_BUILD_PATH)/.config $(KERNEL_BUILD_PATH)/minimal.config
 347 +       $(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 $(KERNEL_BUILD_PATH)/.config debug.config,)
 348 +
 349 +$(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)
 350 +       $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE) CC="$(NOPIE_GCC)"
 351 +
 352 +$(BUILD_PATH)/include/linux/.installed: | $(KERNEL_BUILD_PATH)/.config
 353 +       $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) INSTALL_HDR_PATH=$(BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE) headers_install
 354 +       touch $@
 355 +
 356 +$(MUSL_PATH)/lib/libc.so: $(MUSL_TAR)
 357 +       mkdir -p $(BUILD_PATH)
 358 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 359 +       cd $(MUSL_PATH) && CC=$(REAL_CC) ./configure --prefix=/ --disable-static --build=$(CBUILD)
 360 +       $(MAKE) -C $(MUSL_PATH)
 361 +       $(STRIP) -s $@
 362 +
 363 +$(BUILD_PATH)/include/.installed: $(MUSL_PATH)/lib/libc.so
 364 +       $(MAKE) -C $(MUSL_PATH) DESTDIR=$(BUILD_PATH) install-headers
 365 +       touch $@
 366 +
 367 +$(MUSL_CC): $(MUSL_PATH)/lib/libc.so
 368 +       sh $(MUSL_PATH)/tools/musl-gcc.specs.sh $(BUILD_PATH)/include $(MUSL_PATH)/lib /lib/ld-linux.so.1 > $(BUILD_PATH)/musl-gcc.specs
 369 +       printf '#!/bin/sh\nexec "$(REAL_CC)" --specs="$(BUILD_PATH)/musl-gcc.specs" -fno-stack-protector -no-pie "$$@"\n' > $(BUILD_PATH)/musl-gcc
 370 +       chmod +x $(BUILD_PATH)/musl-gcc
 371 +
 372 +$(IPERF_PATH)/.installed: $(IPERF_TAR)
 373 +       mkdir -p $(BUILD_PATH)
 374 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 375 +       sed -i '1s/^/#include <stdint.h>/' $(IPERF_PATH)/src/cjson.h $(IPERF_PATH)/src/timer.h
 376 +       sed -i -r 's/-p?g//g' $(IPERF_PATH)/src/Makefile*
 377 +       touch $@
 378 +
 379 +$(IPERF_PATH)/src/iperf3: | $(IPERF_PATH)/.installed $(USERSPACE_DEPS)
 380 +       cd $(IPERF_PATH) && CFLAGS="$(CFLAGS) -D_GNU_SOURCE" ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared
 381 +       $(MAKE) -C $(IPERF_PATH)
 382 +       $(STRIP) -s $@
 383 +
 384 +$(LIBMNL_PATH)/.installed: $(LIBMNL_TAR)
 385 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 386 +       touch $@
 387 +
 388 +$(LIBMNL_PATH)/src/.libs/libmnl.a: | $(LIBMNL_PATH)/.installed $(USERSPACE_DEPS)
 389 +       cd $(LIBMNL_PATH) && ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared
 390 +       $(MAKE) -C $(LIBMNL_PATH)
 391 +       sed -i 's:prefix=.*:prefix=$(LIBMNL_PATH):' $(LIBMNL_PATH)/libmnl.pc
 392 +
 393 +$(WIREGUARD_TOOLS_PATH)/.installed: $(WIREGUARD_TOOLS_TAR)
 394 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 395 +       touch $@
 396 +
 397 +$(WIREGUARD_TOOLS_PATH)/src/tools/wg: | $(WIREGUARD_TOOLS_PATH)/.installed $(LIBMNL_PATH)/src/.libs/libmnl.a $(USERSPACE_DEPS)
 398 +       LDFLAGS="$(LDFLAGS) -L$(LIBMNL_PATH)/src/.libs" $(MAKE) -C $(WIREGUARD_TOOLS_PATH)/src/tools LIBMNL_CFLAGS="-I$(LIBMNL_PATH)/include" LIBMNL_LDLIBS="-lmnl" wg
 399 +       $(STRIP) -s $@
 400 +
 401 +$(BUILD_PATH)/init: init.c | $(USERSPACE_DEPS)
 402 +       mkdir -p $(BUILD_PATH)
 403 +       $(MUSL_CC) -o $@ $(CFLAGS) $(LDFLAGS) -std=gnu11 $<
 404 +       $(STRIP) -s $@
 405 +
 406 +$(IPUTILS_PATH)/.installed: $(IPUTILS_TAR)
 407 +       mkdir -p $(BUILD_PATH)
 408 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 409 +       touch $@
 410 +
 411 +$(IPUTILS_PATH)/ping: | $(IPUTILS_PATH)/.installed $(USERSPACE_DEPS)
 412 +       $(MAKE) -C $(IPUTILS_PATH) USE_CAP=no USE_IDN=no USE_NETTLE=no USE_CRYPTO=no ping
 413 +       $(STRIP) -s $@
 414 +
 415 +$(BASH_PATH)/.installed: $(BASH_TAR)
 416 +       mkdir -p $(BUILD_PATH)
 417 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 418 +       touch $@
 419 +
 420 +$(BASH_PATH)/bash: | $(BASH_PATH)/.installed $(USERSPACE_DEPS)
 421 +       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
 422 +       $(MAKE) -C $(BASH_PATH)
 423 +       $(STRIP) -s $@
 424 +
 425 +$(IPROUTE2_PATH)/.installed: $(IPROUTE2_TAR)
 426 +       mkdir -p $(BUILD_PATH)
 427 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 428 +       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
 429 +       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
 430 +       touch $@
 431 +
 432 +$(IPROUTE2_PATH)/ip/ip: | $(IPROUTE2_PATH)/.installed $(LIBMNL_PATH)/src/.libs/libmnl.a $(USERSPACE_DEPS)
 433 +       LDFLAGS="$(LDFLAGS) -L$(LIBMNL_PATH)/src/.libs" PKG_CONFIG_LIBDIR="$(LIBMNL_PATH)" $(MAKE) -C $(IPROUTE2_PATH) PREFIX=/ ip/ip
 434 +       $(STRIP) -s $(IPROUTE2_PATH)/ip/ip
 435 +
 436 +$(IPROUTE2_PATH)/misc/ss: | $(IPROUTE2_PATH)/.installed $(LIBMNL_PATH)/src/.libs/libmnl.a $(USERSPACE_DEPS)
 437 +       LDFLAGS="$(LDFLAGS) -L$(LIBMNL_PATH)/src/.libs" PKG_CONFIG_LIBDIR="$(LIBMNL_PATH)" $(MAKE) -C $(IPROUTE2_PATH) PREFIX=/ misc/ss
 438 +       $(STRIP) -s $(IPROUTE2_PATH)/misc/ss
 439 +
 440 +$(IPTABLES_PATH)/.installed: $(IPTABLES_TAR)
 441 +       mkdir -p $(BUILD_PATH)
 442 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 443 +       sed -i -e "/nfnetlink=[01]/s:=[01]:=0:" -e "/nfconntrack=[01]/s:=[01]:=0:" $(IPTABLES_PATH)/configure
 444 +       touch $@
 445 +
 446 +$(IPTABLES_PATH)/iptables/xtables-multi: | $(IPTABLES_PATH)/.installed $(LIBMNL_PATH)/src/.libs/libmnl.a $(USERSPACE_DEPS)
 447 +       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
 448 +       $(MAKE) -C $(IPTABLES_PATH)
 449 +       $(STRIP) -s $@
 450 +
 451 +$(NMAP_PATH)/.installed: $(NMAP_TAR)
 452 +       mkdir -p $(BUILD_PATH)
 453 +       flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
 454 +       touch $@
 455 +
 456 +$(NMAP_PATH)/ncat/ncat: | $(NMAP_PATH)/.installed $(USERSPACE_DEPS)
 457 +       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
 458 +       $(MAKE) -C $(NMAP_PATH) build-ncat
 459 +       $(STRIP) -s $@
 460 +
 461 +clean:
 462 +       rm -rf $(BUILD_PATH)
 463 +
 464 +distclean: clean
 465 +       rm -rf $(DISTFILES_PATH)
 466 +
 467 +menuconfig: $(KERNEL_BUILD_PATH)/.config
 468 +       $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE) CC="$(NOPIE_GCC)" menuconfig
 469 +
 470 +.PHONY: qemu build clean distclean menuconfig
 471 +.DELETE_ON_ERROR:
 472 --- /dev/null
 473 +++ b/tools/testing/selftests/wireguard/qemu/arch/aarch64.config
 474 @@ -0,0 +1,5 @@
 475 +CONFIG_SERIAL_AMBA_PL011=y
 476 +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 477 +CONFIG_CMDLINE_BOOL=y
 478 +CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
 479 +CONFIG_FRAME_WARN=1280
 480 --- /dev/null
 481 +++ b/tools/testing/selftests/wireguard/qemu/arch/aarch64_be.config
 482 @@ -0,0 +1,6 @@
 483 +CONFIG_CPU_BIG_ENDIAN=y
 484 +CONFIG_SERIAL_AMBA_PL011=y
 485 +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 486 +CONFIG_CMDLINE_BOOL=y
 487 +CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
 488 +CONFIG_FRAME_WARN=1280
 489 --- /dev/null
 490 +++ b/tools/testing/selftests/wireguard/qemu/arch/arm.config
 491 @@ -0,0 +1,9 @@
 492 +CONFIG_MMU=y
 493 +CONFIG_ARCH_MULTI_V7=y
 494 +CONFIG_ARCH_VIRT=y
 495 +CONFIG_THUMB2_KERNEL=n
 496 +CONFIG_SERIAL_AMBA_PL011=y
 497 +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 498 +CONFIG_CMDLINE_BOOL=y
 499 +CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
 500 +CONFIG_FRAME_WARN=1024
 501 --- /dev/null
 502 +++ b/tools/testing/selftests/wireguard/qemu/arch/armeb.config
 503 @@ -0,0 +1,10 @@
 504 +CONFIG_MMU=y
 505 +CONFIG_ARCH_MULTI_V7=y
 506 +CONFIG_ARCH_VIRT=y
 507 +CONFIG_THUMB2_KERNEL=n
 508 +CONFIG_SERIAL_AMBA_PL011=y
 509 +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 510 +CONFIG_CMDLINE_BOOL=y
 511 +CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
 512 +CONFIG_CPU_BIG_ENDIAN=y
 513 +CONFIG_FRAME_WARN=1024
 514 --- /dev/null
 515 +++ b/tools/testing/selftests/wireguard/qemu/arch/i686.config
 516 @@ -0,0 +1,5 @@
 517 +CONFIG_SERIAL_8250=y
 518 +CONFIG_SERIAL_8250_CONSOLE=y
 519 +CONFIG_CMDLINE_BOOL=y
 520 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 521 +CONFIG_FRAME_WARN=1024
 522 --- /dev/null
 523 +++ b/tools/testing/selftests/wireguard/qemu/arch/m68k.config
 524 @@ -0,0 +1,9 @@
 525 +CONFIG_MMU=y
 526 +CONFIG_M68040=y
 527 +CONFIG_MAC=y
 528 +CONFIG_SERIAL_PMACZILOG=y
 529 +CONFIG_SERIAL_PMACZILOG_TTYS=y
 530 +CONFIG_SERIAL_PMACZILOG_CONSOLE=y
 531 +CONFIG_CMDLINE_BOOL=y
 532 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 533 +CONFIG_FRAME_WARN=1024
 534 --- /dev/null
 535 +++ b/tools/testing/selftests/wireguard/qemu/arch/mips.config
 536 @@ -0,0 +1,11 @@
 537 +CONFIG_CPU_MIPS32_R2=y
 538 +CONFIG_MIPS_MALTA=y
 539 +CONFIG_MIPS_CPS=y
 540 +CONFIG_MIPS_FP_SUPPORT=y
 541 +CONFIG_POWER_RESET=y
 542 +CONFIG_POWER_RESET_SYSCON=y
 543 +CONFIG_SERIAL_8250=y
 544 +CONFIG_SERIAL_8250_CONSOLE=y
 545 +CONFIG_CMDLINE_BOOL=y
 546 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 547 +CONFIG_FRAME_WARN=1024
 548 --- /dev/null
 549 +++ b/tools/testing/selftests/wireguard/qemu/arch/mips64.config
 550 @@ -0,0 +1,14 @@
 551 +CONFIG_64BIT=y
 552 +CONFIG_CPU_MIPS64_R2=y
 553 +CONFIG_MIPS32_N32=y
 554 +CONFIG_CPU_HAS_MSA=y
 555 +CONFIG_MIPS_MALTA=y
 556 +CONFIG_MIPS_CPS=y
 557 +CONFIG_MIPS_FP_SUPPORT=y
 558 +CONFIG_POWER_RESET=y
 559 +CONFIG_POWER_RESET_SYSCON=y
 560 +CONFIG_SERIAL_8250=y
 561 +CONFIG_SERIAL_8250_CONSOLE=y
 562 +CONFIG_CMDLINE_BOOL=y
 563 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 564 +CONFIG_FRAME_WARN=1280
 565 --- /dev/null
 566 +++ b/tools/testing/selftests/wireguard/qemu/arch/mips64el.config
 567 @@ -0,0 +1,15 @@
 568 +CONFIG_64BIT=y
 569 +CONFIG_CPU_MIPS64_R2=y
 570 +CONFIG_MIPS32_N32=y
 571 +CONFIG_CPU_HAS_MSA=y
 572 +CONFIG_MIPS_MALTA=y
 573 +CONFIG_CPU_LITTLE_ENDIAN=y
 574 +CONFIG_MIPS_CPS=y
 575 +CONFIG_MIPS_FP_SUPPORT=y
 576 +CONFIG_POWER_RESET=y
 577 +CONFIG_POWER_RESET_SYSCON=y
 578 +CONFIG_SERIAL_8250=y
 579 +CONFIG_SERIAL_8250_CONSOLE=y
 580 +CONFIG_CMDLINE_BOOL=y
 581 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 582 +CONFIG_FRAME_WARN=1280
 583 --- /dev/null
 584 +++ b/tools/testing/selftests/wireguard/qemu/arch/mipsel.config
 585 @@ -0,0 +1,12 @@
 586 +CONFIG_CPU_MIPS32_R2=y
 587 +CONFIG_MIPS_MALTA=y
 588 +CONFIG_CPU_LITTLE_ENDIAN=y
 589 +CONFIG_MIPS_CPS=y
 590 +CONFIG_MIPS_FP_SUPPORT=y
 591 +CONFIG_POWER_RESET=y
 592 +CONFIG_POWER_RESET_SYSCON=y
 593 +CONFIG_SERIAL_8250=y
 594 +CONFIG_SERIAL_8250_CONSOLE=y
 595 +CONFIG_CMDLINE_BOOL=y
 596 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 597 +CONFIG_FRAME_WARN=1024
 598 --- /dev/null
 599 +++ b/tools/testing/selftests/wireguard/qemu/arch/powerpc.config
 600 @@ -0,0 +1,10 @@
 601 +CONFIG_PPC_QEMU_E500=y
 602 +CONFIG_FSL_SOC_BOOKE=y
 603 +CONFIG_PPC_85xx=y
 604 +CONFIG_PHYS_64BIT=y
 605 +CONFIG_SERIAL_8250=y
 606 +CONFIG_SERIAL_8250_CONSOLE=y
 607 +CONFIG_MATH_EMULATION=y
 608 +CONFIG_CMDLINE_BOOL=y
 609 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 610 +CONFIG_FRAME_WARN=1024
 611 --- /dev/null
 612 +++ b/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
 613 @@ -0,0 +1,12 @@
 614 +CONFIG_PPC64=y
 615 +CONFIG_PPC_PSERIES=y
 616 +CONFIG_ALTIVEC=y
 617 +CONFIG_VSX=y
 618 +CONFIG_PPC_OF_BOOT_TRAMPOLINE=y
 619 +CONFIG_PPC_RADIX_MMU=y
 620 +CONFIG_HVC_CONSOLE=y
 621 +CONFIG_CPU_LITTLE_ENDIAN=y
 622 +CONFIG_CMDLINE_BOOL=y
 623 +CONFIG_CMDLINE="console=hvc0 wg.success=hvc1"
 624 +CONFIG_SECTION_MISMATCH_WARN_ONLY=y
 625 +CONFIG_FRAME_WARN=1280
 626 --- /dev/null
 627 +++ b/tools/testing/selftests/wireguard/qemu/arch/x86_64.config
 628 @@ -0,0 +1,5 @@
 629 +CONFIG_SERIAL_8250=y
 630 +CONFIG_SERIAL_8250_CONSOLE=y
 631 +CONFIG_CMDLINE_BOOL=y
 632 +CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
 633 +CONFIG_FRAME_WARN=1280
 634 --- /dev/null
 635 +++ b/tools/testing/selftests/wireguard/qemu/debug.config
 636 @@ -0,0 +1,67 @@
 637 +CONFIG_LOCALVERSION="-debug"
 638 +CONFIG_ENABLE_WARN_DEPRECATED=y
 639 +CONFIG_ENABLE_MUST_CHECK=y
 640 +CONFIG_FRAME_POINTER=y
 641 +CONFIG_STACK_VALIDATION=y
 642 +CONFIG_DEBUG_KERNEL=y
 643 +CONFIG_DEBUG_INFO=y
 644 +CONFIG_DEBUG_INFO_DWARF4=y
 645 +CONFIG_PAGE_EXTENSION=y
 646 +CONFIG_PAGE_POISONING=y
 647 +CONFIG_DEBUG_OBJECTS=y
 648 +CONFIG_DEBUG_OBJECTS_FREE=y
 649 +CONFIG_DEBUG_OBJECTS_TIMERS=y
 650 +CONFIG_DEBUG_OBJECTS_WORK=y
 651 +CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
 652 +CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
 653 +CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
 654 +CONFIG_SLUB_DEBUG_ON=y
 655 +CONFIG_DEBUG_VM=y
 656 +CONFIG_DEBUG_MEMORY_INIT=y
 657 +CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
 658 +CONFIG_DEBUG_STACKOVERFLOW=y
 659 +CONFIG_HAVE_ARCH_KMEMCHECK=y
 660 +CONFIG_HAVE_ARCH_KASAN=y
 661 +CONFIG_KASAN=y
 662 +CONFIG_KASAN_INLINE=y
 663 +CONFIG_UBSAN=y
 664 +CONFIG_UBSAN_SANITIZE_ALL=y
 665 +CONFIG_UBSAN_NO_ALIGNMENT=y
 666 +CONFIG_UBSAN_NULL=y
 667 +CONFIG_DEBUG_KMEMLEAK=y
 668 +CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=8192
 669 +CONFIG_DEBUG_STACK_USAGE=y
 670 +CONFIG_DEBUG_SHIRQ=y
 671 +CONFIG_WQ_WATCHDOG=y
 672 +CONFIG_SCHED_DEBUG=y
 673 +CONFIG_SCHED_INFO=y
 674 +CONFIG_SCHEDSTATS=y
 675 +CONFIG_SCHED_STACK_END_CHECK=y
 676 +CONFIG_DEBUG_TIMEKEEPING=y
 677 +CONFIG_TIMER_STATS=y
 678 +CONFIG_DEBUG_PREEMPT=y
 679 +CONFIG_DEBUG_RT_MUTEXES=y
 680 +CONFIG_DEBUG_SPINLOCK=y
 681 +CONFIG_DEBUG_MUTEXES=y
 682 +CONFIG_DEBUG_LOCK_ALLOC=y
 683 +CONFIG_PROVE_LOCKING=y
 684 +CONFIG_LOCKDEP=y
 685 +CONFIG_DEBUG_ATOMIC_SLEEP=y
 686 +CONFIG_TRACE_IRQFLAGS=y
 687 +CONFIG_DEBUG_BUGVERBOSE=y
 688 +CONFIG_DEBUG_LIST=y
 689 +CONFIG_DEBUG_PI_LIST=y
 690 +CONFIG_PROVE_RCU=y
 691 +CONFIG_SPARSE_RCU_POINTER=y
 692 +CONFIG_RCU_CPU_STALL_TIMEOUT=21
 693 +CONFIG_RCU_TRACE=y
 694 +CONFIG_RCU_EQS_DEBUG=y
 695 +CONFIG_USER_STACKTRACE_SUPPORT=y
 696 +CONFIG_DEBUG_SG=y
 697 +CONFIG_DEBUG_NOTIFIERS=y
 698 +CONFIG_DOUBLEFAULT=y
 699 +CONFIG_X86_DEBUG_FPU=y
 700 +CONFIG_DEBUG_SECTION_MISMATCH=y
 701 +CONFIG_DEBUG_PAGEALLOC=y
 702 +CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT=y
 703 +CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
 704 --- /dev/null
 705 +++ b/tools/testing/selftests/wireguard/qemu/init.c
 706 @@ -0,0 +1,284 @@
 707 +// SPDX-License-Identifier: GPL-2.0
 708 +/*
 709 + * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 710 + */
 711 +
 712 +#define _GNU_SOURCE
 713 +#include <unistd.h>
 714 +#include <errno.h>
 715 +#include <string.h>
 716 +#include <stdio.h>
 717 +#include <stdlib.h>
 718 +#include <stdbool.h>
 719 +#include <fcntl.h>
 720 +#include <sys/wait.h>
 721 +#include <sys/mount.h>
 722 +#include <sys/types.h>
 723 +#include <sys/stat.h>
 724 +#include <sys/types.h>
 725 +#include <sys/io.h>
 726 +#include <sys/ioctl.h>
 727 +#include <sys/reboot.h>
 728 +#include <sys/utsname.h>
 729 +#include <sys/sendfile.h>
 730 +#include <linux/random.h>
 731 +#include <linux/version.h>
 732 +
 733 +__attribute__((noreturn)) static void poweroff(void)
 734 +{
 735 +       fflush(stdout);
 736 +       fflush(stderr);
 737 +       reboot(RB_AUTOBOOT);
 738 +       sleep(30);
 739 +       fprintf(stderr, "\x1b[37m\x1b[41m\x1b[1mFailed to power off!!!\x1b[0m\n");
 740 +       exit(1);
 741 +}
 742 +
 743 +static void panic(const char *what)
 744 +{
 745 +       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));
 746 +       poweroff();
 747 +}
 748 +
 749 +#define pretty_message(msg) puts("\x1b[32m\x1b[1m" msg "\x1b[0m")
 750 +
 751 +static void print_banner(void)
 752 +{
 753 +       struct utsname utsname;
 754 +       int len;
 755 +
 756 +       if (uname(&utsname) < 0)
 757 +               panic("uname");
 758 +
 759 +       len = strlen("    WireGuard Test Suite on       ") + strlen(utsname.sysname) + strlen(utsname.release) + strlen(utsname.machine);
 760 +       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, "");
 761 +}
 762 +
 763 +static void seed_rng(void)
 764 +{
 765 +       int fd;
 766 +       struct {
 767 +               int entropy_count;
 768 +               int buffer_size;
 769 +               unsigned char buffer[256];
 770 +       } entropy = {
 771 +               .entropy_count = sizeof(entropy.buffer) * 8,
 772 +               .buffer_size = sizeof(entropy.buffer),
 773 +               .buffer = "Adding real entropy is not actually important for these tests. Don't try this at home, kids!"
 774 +       };
 775 +
 776 +       if (mknod("/dev/urandom", S_IFCHR | 0644, makedev(1, 9)))
 777 +               panic("mknod(/dev/urandom)");
 778 +       fd = open("/dev/urandom", O_WRONLY);
 779 +       if (fd < 0)
 780 +               panic("open(urandom)");
 781 +       for (int i = 0; i < 256; ++i) {
 782 +               if (ioctl(fd, RNDADDENTROPY, &entropy) < 0)
 783 +                       panic("ioctl(urandom)");
 784 +       }
 785 +       close(fd);
 786 +}
 787 +
 788 +static void mount_filesystems(void)
 789 +{
 790 +       pretty_message("[+] Mounting filesystems...");
 791 +       mkdir("/dev", 0755);
 792 +       mkdir("/proc", 0755);
 793 +       mkdir("/sys", 0755);
 794 +       mkdir("/tmp", 0755);
 795 +       mkdir("/run", 0755);
 796 +       mkdir("/var", 0755);
 797 +       if (mount("none", "/dev", "devtmpfs", 0, NULL))
 798 +               panic("devtmpfs mount");
 799 +       if (mount("none", "/proc", "proc", 0, NULL))
 800 +               panic("procfs mount");
 801 +       if (mount("none", "/sys", "sysfs", 0, NULL))
 802 +               panic("sysfs mount");
 803 +       if (mount("none", "/tmp", "tmpfs", 0, NULL))
 804 +               panic("tmpfs mount");
 805 +       if (mount("none", "/run", "tmpfs", 0, NULL))
 806 +               panic("tmpfs mount");
 807 +       if (mount("none", "/sys/kernel/debug", "debugfs", 0, NULL))
 808 +               ; /* Not a problem if it fails.*/
 809 +       if (symlink("/run", "/var/run"))
 810 +               panic("run symlink");
 811 +       if (symlink("/proc/self/fd", "/dev/fd"))
 812 +               panic("fd symlink");
 813 +}
 814 +
 815 +static void enable_logging(void)
 816 +{
 817 +       int fd;
 818 +       pretty_message("[+] Enabling logging...");
 819 +       fd = open("/proc/sys/kernel/printk", O_WRONLY);
 820 +       if (fd >= 0) {
 821 +               if (write(fd, "9\n", 2) != 2)
 822 +                       panic("write(printk)");
 823 +               close(fd);
 824 +       }
 825 +       fd = open("/proc/sys/debug/exception-trace", O_WRONLY);
 826 +       if (fd >= 0) {
 827 +               if (write(fd, "1\n", 2) != 2)
 828 +                       panic("write(exception-trace)");
 829 +               close(fd);
 830 +       }
 831 +       fd = open("/proc/sys/kernel/panic_on_warn", O_WRONLY);
 832 +       if (fd >= 0) {
 833 +               if (write(fd, "1\n", 2) != 2)
 834 +                       panic("write(panic_on_warn)");
 835 +               close(fd);
 836 +       }
 837 +}
 838 +
 839 +static void kmod_selftests(void)
 840 +{
 841 +       FILE *file;
 842 +       char line[2048], *start, *pass;
 843 +       bool success = true;
 844 +       pretty_message("[+] Module self-tests:");
 845 +       file = fopen("/proc/kmsg", "r");
 846 +       if (!file)
 847 +               panic("fopen(kmsg)");
 848 +       if (fcntl(fileno(file), F_SETFL, O_NONBLOCK) < 0)
 849 +               panic("fcntl(kmsg, nonblock)");
 850 +       while (fgets(line, sizeof(line), file)) {
 851 +               start = strstr(line, "wireguard: ");
 852 +               if (!start)
 853 +                       continue;
 854 +               start += 11;
 855 +               *strchrnul(start, '\n') = '\0';
 856 +               if (strstr(start, "www.wireguard.com"))
 857 +                       break;
 858 +               pass = strstr(start, ": pass");
 859 +               if (!pass || pass[6] != '\0') {
 860 +                       success = false;
 861 +                       printf(" \x1b[31m*  %s\x1b[0m\n", start);
 862 +               } else
 863 +                       printf(" \x1b[32m*  %s\x1b[0m\n", start);
 864 +       }
 865 +       fclose(file);
 866 +       if (!success) {
 867 +               puts("\x1b[31m\x1b[1m[-] Tests failed! \u2639\x1b[0m");
 868 +               poweroff();
 869 +       }
 870 +}
 871 +
 872 +static void launch_tests(void)
 873 +{
 874 +       char cmdline[4096], *success_dev;
 875 +       int status, fd;
 876 +       pid_t pid;
 877 +
 878 +       pretty_message("[+] Launching tests...");
 879 +       pid = fork();
 880 +       if (pid == -1)
 881 +               panic("fork");
 882 +       else if (pid == 0) {
 883 +               execl("/init.sh", "init", NULL);
 884 +               panic("exec");
 885 +       }
 886 +       if (waitpid(pid, &status, 0) < 0)
 887 +               panic("waitpid");
 888 +       if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
 889 +               pretty_message("[+] Tests successful! :-)");
 890 +               fd = open("/proc/cmdline", O_RDONLY);
 891 +               if (fd < 0)
 892 +                       panic("open(/proc/cmdline)");
 893 +               if (read(fd, cmdline, sizeof(cmdline) - 1) <= 0)
 894 +                       panic("read(/proc/cmdline)");
 895 +               cmdline[sizeof(cmdline) - 1] = '\0';
 896 +               for (success_dev = strtok(cmdline, " \n"); success_dev; success_dev = strtok(NULL, " \n")) {
 897 +                       if (strncmp(success_dev, "wg.success=", 11))
 898 +                               continue;
 899 +                       memcpy(success_dev + 11 - 5, "/dev/", 5);
 900 +                       success_dev += 11 - 5;
 901 +                       break;
 902 +               }
 903 +               if (!success_dev || !strlen(success_dev))
 904 +                       panic("Unable to find success device");
 905 +
 906 +               fd = open(success_dev, O_WRONLY);
 907 +               if (fd < 0)
 908 +                       panic("open(success_dev)");
 909 +               if (write(fd, "success\n", 8) != 8)
 910 +                       panic("write(success_dev)");
 911 +               close(fd);
 912 +       } else {
 913 +               const char *why = "unknown cause";
 914 +               int what = -1;
 915 +
 916 +               if (WIFEXITED(status)) {
 917 +                       why = "exit code";
 918 +                       what = WEXITSTATUS(status);
 919 +               } else if (WIFSIGNALED(status)) {
 920 +                       why = "signal";
 921 +                       what = WTERMSIG(status);
 922 +               }
 923 +               printf("\x1b[31m\x1b[1m[-] Tests failed with %s %d! \u2639\x1b[0m\n", why, what);
 924 +       }
 925 +}
 926 +
 927 +static void ensure_console(void)
 928 +{
 929 +       for (unsigned int i = 0; i < 1000; ++i) {
 930 +               int fd = open("/dev/console", O_RDWR);
 931 +               if (fd < 0) {
 932 +                       usleep(50000);
 933 +                       continue;
 934 +               }
 935 +               dup2(fd, 0);
 936 +               dup2(fd, 1);
 937 +               dup2(fd, 2);
 938 +               close(fd);
 939 +               if (write(1, "\0\0\0\0\n", 5) == 5)
 940 +                       return;
 941 +       }
 942 +       panic("Unable to open console device");
 943 +}
 944 +
 945 +static void clear_leaks(void)
 946 +{
 947 +       int fd;
 948 +
 949 +       fd = open("/sys/kernel/debug/kmemleak", O_WRONLY);
 950 +       if (fd < 0)
 951 +               return;
 952 +       pretty_message("[+] Starting memory leak detection...");
 953 +       write(fd, "clear\n", 5);
 954 +       close(fd);
 955 +}
 956 +
 957 +static void check_leaks(void)
 958 +{
 959 +       int fd;
 960 +
 961 +       fd = open("/sys/kernel/debug/kmemleak", O_WRONLY);
 962 +       if (fd < 0)
 963 +               return;
 964 +       pretty_message("[+] Scanning for memory leaks...");
 965 +       sleep(2); /* Wait for any grace periods. */
 966 +       write(fd, "scan\n", 5);
 967 +       close(fd);
 968 +
 969 +       fd = open("/sys/kernel/debug/kmemleak", O_RDONLY);
 970 +       if (fd < 0)
 971 +               return;
 972 +       if (sendfile(1, fd, NULL, 0x7ffff000) > 0)
 973 +               panic("Memory leaks encountered");
 974 +       close(fd);
 975 +}
 976 +
 977 +int main(int argc, char *argv[])
 978 +{
 979 +       seed_rng();
 980 +       ensure_console();
 981 +       print_banner();
 982 +       mount_filesystems();
 983 +       kmod_selftests();
 984 +       enable_logging();
 985 +       clear_leaks();
 986 +       launch_tests();
 987 +       check_leaks();
 988 +       poweroff();
 989 +       return 1;
 990 +}
 991 --- /dev/null
 992 +++ b/tools/testing/selftests/wireguard/qemu/kernel.config
 993 @@ -0,0 +1,86 @@
 994 +CONFIG_LOCALVERSION=""
 995 +CONFIG_NET=y
 996 +CONFIG_NETDEVICES=y
 997 +CONFIG_NET_CORE=y
 998 +CONFIG_NET_IPIP=y
 999 +CONFIG_DUMMY=y
1000 +CONFIG_VETH=y
1001 +CONFIG_MULTIUSER=y
1002 +CONFIG_NAMESPACES=y
1003 +CONFIG_NET_NS=y
1004 +CONFIG_UNIX=y
1005 +CONFIG_INET=y
1006 +CONFIG_IPV6=y
1007 +CONFIG_NETFILTER=y
1008 +CONFIG_NETFILTER_ADVANCED=y
1009 +CONFIG_NF_CONNTRACK=y
1010 +CONFIG_NF_NAT=y
1011 +CONFIG_NETFILTER_XTABLES=y
1012 +CONFIG_NETFILTER_XT_NAT=y
1013 +CONFIG_NETFILTER_XT_MATCH_LENGTH=y
1014 +CONFIG_NF_CONNTRACK_IPV4=y
1015 +CONFIG_NF_NAT_IPV4=y
1016 +CONFIG_IP_NF_IPTABLES=y
1017 +CONFIG_IP_NF_FILTER=y
1018 +CONFIG_IP_NF_NAT=y
1019 +CONFIG_IP_ADVANCED_ROUTER=y
1020 +CONFIG_IP_MULTIPLE_TABLES=y
1021 +CONFIG_IPV6_MULTIPLE_TABLES=y
1022 +CONFIG_TTY=y
1023 +CONFIG_BINFMT_ELF=y
1024 +CONFIG_BINFMT_SCRIPT=y
1025 +CONFIG_VDSO=y
1026 +CONFIG_VIRTUALIZATION=y
1027 +CONFIG_HYPERVISOR_GUEST=y
1028 +CONFIG_PARAVIRT=y
1029 +CONFIG_KVM_GUEST=y
1030 +CONFIG_PARAVIRT_SPINLOCKS=y
1031 +CONFIG_PRINTK=y
1032 +CONFIG_KALLSYMS=y
1033 +CONFIG_BUG=y
1034 +CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
1035 +CONFIG_EMBEDDED=n
1036 +CONFIG_BASE_FULL=y
1037 +CONFIG_FUTEX=y
1038 +CONFIG_SHMEM=y
1039 +CONFIG_SLUB=y
1040 +CONFIG_SPARSEMEM_VMEMMAP=y
1041 +CONFIG_SMP=y
1042 +CONFIG_SCHED_SMT=y
1043 +CONFIG_SCHED_MC=y
1044 +CONFIG_NUMA=y
1045 +CONFIG_PREEMPT=y
1046 +CONFIG_NO_HZ=y
1047 +CONFIG_NO_HZ_IDLE=y
1048 +CONFIG_NO_HZ_FULL=n
1049 +CONFIG_HZ_PERIODIC=n
1050 +CONFIG_HIGH_RES_TIMERS=y
1051 +CONFIG_ARCH_RANDOM=y
1052 +CONFIG_FILE_LOCKING=y
1053 +CONFIG_POSIX_TIMERS=y
1054 +CONFIG_DEVTMPFS=y
1055 +CONFIG_PROC_FS=y
1056 +CONFIG_PROC_SYSCTL=y
1057 +CONFIG_SYSFS=y
1058 +CONFIG_TMPFS=y
1059 +CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
1060 +CONFIG_PRINTK_TIME=y
1061 +CONFIG_BLK_DEV_INITRD=y
1062 +CONFIG_LEGACY_VSYSCALL_NONE=y
1063 +CONFIG_KERNEL_GZIP=y
1064 +CONFIG_PANIC_ON_OOPS=y
1065 +CONFIG_BUG_ON_DATA_CORRUPTION=y
1066 +CONFIG_LOCKUP_DETECTOR=y
1067 +CONFIG_SOFTLOCKUP_DETECTOR=y
1068 +CONFIG_HARDLOCKUP_DETECTOR=y
1069 +CONFIG_WQ_WATCHDOG=y
1070 +CONFIG_DETECT_HUNG_TASK=y
1071 +CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
1072 +CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
1073 +CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
1074 +CONFIG_PANIC_TIMEOUT=-1
1075 +CONFIG_STACKTRACE=y
1076 +CONFIG_EARLY_PRINTK=y
1077 +CONFIG_GDB_SCRIPTS=y
1078 +CONFIG_WIREGUARD=y
1079 +CONFIG_WIREGUARD_DEBUG=y