@@ -295,6 +295,12 Install kernel headers with built kernel. | |||
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295 | 295 | ##### `KERNEL_MENUCONFIG`=false |
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296 | 296 | Start `make menuconfig` interactive menu-driven kernel configuration. The script will continue after `make menuconfig` was terminated. |
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297 | 297 | |
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298 | ##### `KERNEL_OLDDEFCONFIG`=false | |
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299 | Run `make olddefconfig` to automatically set all new kernel configuration options to their recommended default values. | |
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300 | ||
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301 | ##### `KERNEL_CCACHE`=false | |
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302 | Compile the kernel using ccache. This speeds up kernel recompilation by caching previous compilations and detecting when the same compilation is being done again. | |
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303 | ||
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298 | 304 | ##### `KERNEL_REMOVESRC`=true |
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299 | 305 | Remove all kernel sources from the generated OS image after it was built and installed. |
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300 | 306 |
@@ -25,9 +25,9 if [ "$BUILD_KERNEL" = true ] ; then | |||
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25 | 25 | |
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26 | 26 | # Fetch current RPi2/3 kernel sources |
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27 | 27 | if [ -z "${KERNEL_BRANCH}" ] ; then |
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28 | as_nobody git -C "${temp_dir}" clone --depth=1 "${KERNEL_URL}" linux | |
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28 | as_nobody -H git -C "${temp_dir}" clone --depth=1 "${KERNEL_URL}" linux | |
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29 | 29 | else |
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30 | as_nobody git -C "${temp_dir}" clone --depth=1 --branch "${KERNEL_BRANCH}" "${KERNEL_URL}" linux | |
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30 | as_nobody -H git -C "${temp_dir}" clone --depth=1 --branch "${KERNEL_BRANCH}" "${KERNEL_URL}" linux | |
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31 | 31 | fi |
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32 | 32 | |
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33 | 33 | # Copy downloaded kernel sources |
@@ -87,18 +87,36 if [ "$BUILD_KERNEL" = true ] ; then | |||
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87 | 87 | # Load default raspberry kernel configuration |
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88 | 88 | make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}" |
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89 | 89 | |
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90 | # Copy custom kernel configuration file | |
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90 | 91 | if [ ! -z "$KERNELSRC_USRCONFIG" ] ; then |
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91 | 92 | cp $KERNELSRC_USRCONFIG ${KERNEL_DIR}/.config |
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92 | 93 | fi |
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93 | 94 | |
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95 | # Set kernel configuration parameters to their default values | |
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96 | if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then | |
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97 | make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig | |
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98 | fi | |
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99 | ||
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94 | 100 | # Start menu-driven kernel configuration (interactive) |
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95 | 101 | if [ "$KERNEL_MENUCONFIG" = true ] ; then |
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96 | 102 | make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig |
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97 | 103 | fi |
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98 | 104 | fi |
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99 | 105 | |
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100 |
# |
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101 | make -C "${KERNEL_DIR}" -j${KERNEL_THREADS} ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_BIN_IMAGE}" modules dtbs | |
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106 | # Use ccache to cross compile the kernel | |
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107 | if [ "$KERNEL_CCACHE" = true ] ; then | |
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108 | cc="ccache ${CROSS_COMPILE}gcc" | |
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109 | else | |
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110 | cc="${CROSS_COMPILE}gcc" | |
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111 | fi | |
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112 | ||
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113 | # Cross compile kernel and dtbs | |
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114 | make -C "${KERNEL_DIR}" -j${KERNEL_THREADS} ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs | |
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115 | ||
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116 | # Cross compile kernel modules | |
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117 | if [ $(grep "CONFIG_MODULES=y" "${KERNEL_DIR}/.config") ] ; then | |
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118 | make -C "${KERNEL_DIR}" -j${KERNEL_THREADS} ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules | |
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119 | fi | |
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102 | 120 | fi |
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103 | 121 | |
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104 | 122 | # Check if kernel compilation was successful |
@@ -110,12 +128,16 if [ "$BUILD_KERNEL" = true ] ; then | |||
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110 | 128 | |
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111 | 129 | # Install kernel modules |
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112 | 130 | if [ "$ENABLE_REDUCE" = true ] ; then |
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131 | if [ $(grep "CONFIG_MODULES=y" "${KERNEL_DIR}/.config") ] ; then | |
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113 | 132 | make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install |
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133 | fi | |
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114 | 134 | else |
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135 | if [ $(grep "CONFIG_MODULES=y" "${KERNEL_DIR}/.config") ] ; then | |
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115 | 136 | make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install |
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137 | fi | |
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116 | 138 | |
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117 | 139 | # Install kernel firmware |
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118 |
if [ $( |
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140 | if [ $(grep "^firmware_install:" "${KERNEL_DIR}/Makefile") ] ; then | |
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119 | 141 | make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install |
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120 | 142 | fi |
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121 | 143 | fi |
@@ -134,18 +156,36 if [ "$BUILD_KERNEL" = true ] ; then | |||
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134 | 156 | # Copy kernel configuration file to the boot directory |
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135 | 157 | install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}" |
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136 | 158 | |
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137 | # Copy dts and dtb device tree sources and binaries | |
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159 | # Prepare device tree directory | |
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138 | 160 | mkdir "${BOOT_DIR}/overlays" |
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139 | 161 | |
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140 | 162 | # Ensure the proper .dtb is located |
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141 | 163 | if [ "$KERNEL_ARCH" = "arm" ] ; then |
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142 |
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164 | for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do | |
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165 | if [ -f "${dtb}" ] ; then | |
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166 | install_readonly "${dtb}" "${BOOT_DIR}/" | |
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167 | fi | |
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168 | done | |
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143 | 169 | else |
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144 |
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170 | for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do | |
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171 | if [ -f "${dtb}" ] ; then | |
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172 | install_readonly "${dtb}" "${BOOT_DIR}/" | |
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173 | fi | |
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174 | done | |
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175 | fi | |
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176 | ||
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177 | # Copy compiled dtb device tree files | |
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178 | if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then | |
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179 | for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb ; do | |
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180 | if [ -f "${dtb}" ] ; then | |
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181 | install_readonly "${dtb}" "${BOOT_DIR}/overlays/" | |
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145 | 182 | fi |
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183 | done | |
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146 | 184 | |
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147 |
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185 | if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then | |
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148 | 186 | install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README" |
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187 | fi | |
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188 | fi | |
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149 | 189 | |
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150 | 190 | if [ "$ENABLE_UBOOT" = false ] ; then |
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151 | 191 | # Convert and copy kernel image to the boot directory |
@@ -159,12 +199,17 if [ "$BUILD_KERNEL" = true ] ; then | |||
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159 | 199 | if [ "$KERNEL_REMOVESRC" = true ] ; then |
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160 | 200 | rm -fr "${KERNEL_DIR}" |
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161 | 201 | else |
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202 | # Prepare compiled kernel modules | |
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203 | if [ $(grep "CONFIG_MODULES=y" "${KERNEL_DIR}/.config") ] ; then | |
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204 | if [ $(grep "^modules_prepare:" "${KERNEL_DIR}/Makefile") ] ; then | |
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162 | 205 | make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare |
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206 | fi | |
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163 | 207 | |
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164 | 208 | # Create symlinks for kernel modules |
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165 | 209 | chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build" |
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166 | 210 | chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source" |
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167 | 211 | fi |
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212 | fi | |
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168 | 213 | |
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169 | 214 | else # BUILD_KERNEL=false |
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170 | 215 | # Kernel installation |
@@ -175,6 +175,9 KERNEL_THREADS=${KERNEL_THREADS:=1} | |||
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175 | 175 | KERNEL_HEADERS=${KERNEL_HEADERS:=true} |
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176 | 176 | KERNEL_MENUCONFIG=${KERNEL_MENUCONFIG:=false} |
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177 | 177 | KERNEL_REMOVESRC=${KERNEL_REMOVESRC:=true} |
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178 | KERNEL_OLDDEFCONFIG=${KERNEL_OLDDEFCONFIG:=false} | |
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179 | KERNEL_CCACHE=${KERNEL_CCACHE:=false} | |
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180 | ||
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178 | 181 | if [ "$KERNEL_ARCH" = "arm64" ] ; then |
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179 | 182 | KERNEL_BIN_IMAGE=${KERNEL_BIN_IMAGE:="Image"} |
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180 | 183 | else |
@@ -269,6 +272,11 if [ "$KERNEL_MENUCONFIG" = true ] ; then | |||
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269 | 272 | REQUIRED_PACKAGES="${REQUIRED_PACKAGES} libncurses5-dev" |
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270 | 273 | fi |
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271 | 274 | |
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275 | # Add ccache compiler cache for (faster) kernel cross (re)compilation | |
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276 | if [ "$KERNEL_CCACHE" = true ] ; then | |
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277 | REQUIRED_PACKAGES="${REQUIRED_PACKAGES} ccache" | |
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278 | fi | |
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279 | ||
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272 | 280 | # Stop the Crypto Wars |
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273 | 281 | if [ "$DISABLE_FBI" = true ] ; then |
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274 | 282 | ENABLE_CRYPTFS=true |
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