Linux 内核编译

2024-07-11 23:52| 来源: 网络整理| 查看: 265

对内核打上补丁，参考 https://blog.csdn.net/sunqian666888/article/details/85003007

创建输出文件夹：

sun@machine:~/share/build/linux-4.9.145$ mkdir out sun@machine:~/share/build/linux-4.9.145$

设置默认config文件

sun@machine:~/share/build/linux-4.9.145$ make ARCH=arm O=out vexpress_defconfig make[1]: 进入目录“/home/sun/share/build/linux-4.9.145/out” HOSTCC scripts/basic/fixdep GEN ./Makefile HOSTCC scripts/kconfig/conf.o SHIPPED scripts/kconfig/zconf.tab.c SHIPPED scripts/kconfig/zconf.lex.c SHIPPED scripts/kconfig/zconf.hash.c HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf # # configuration written to .config # make[1]: 离开目录“/home/sun/share/build/linux-4.9.145/out” sun@machine:~/share/build/linux-4.9.145$ make ARCH=arm O=out menuconfig

然后进行修改：

进行编译：

make ARCH=arm O=out zImage -j4

编译完成：

LD vmlinux SORTEX vmlinux SYSMAP System.map OBJCOPY arch/arm/boot/Image Kernel: arch/arm/boot/Image is ready LDS arch/arm/boot/compressed/vmlinux.lds AS arch/arm/boot/compressed/head.o GZIP arch/arm/boot/compressed/piggy_data CC arch/arm/boot/compressed/misc.o CC arch/arm/boot/compressed/decompress.o CC arch/arm/boot/compressed/string.o SHIPPED arch/arm/boot/compressed/hyp-stub.S SHIPPED arch/arm/boot/compressed/lib1funcs.S SHIPPED arch/arm/boot/compressed/ashldi3.S SHIPPED arch/arm/boot/compressed/bswapsdi2.S AS arch/arm/boot/compressed/hyp-stub.o AS arch/arm/boot/compressed/lib1funcs.o AS arch/arm/boot/compressed/ashldi3.o AS arch/arm/boot/compressed/bswapsdi2.o AS arch/arm/boot/compressed/piggy.o LD arch/arm/boot/compressed/vmlinux OBJCOPY arch/arm/boot/zImage Kernel: arch/arm/boot/zImage is ready

查看生成的文件：

查看生成的文件的属性：

因为我要练习 U-boot 引导，所以还需编译 uImage

make V=1 ARCH=arm O=out uImage -j4 make -f ../scripts/Makefile.build obj=drivers/video/logo make -f ../scripts/Makefile.build obj=drivers/video/fbdev/omap2 make -f ../scripts/Makefile.build obj=drivers/video/fbdev/omap2/omapfb make -f ../scripts/Makefile.build obj=drivers/video/fbdev/omap2/omapfb/displays make -f ../scripts/Makefile.build obj=drivers/video/fbdev/omap2/omapfb/dss make -f ../scripts/Makefile.build obj=arch/arm/boot MACHINE= arch/arm/boot/Image make -f ../scripts/Makefile.build obj=arch/arm/boot MACHINE= arch/arm/boot/zImage make -f ../scripts/Makefile.build obj=arch/arm/boot/compressed arch/arm/boot/compressed/vmlinux make -f ../scripts/Makefile.build obj=arch/arm/boot MACHINE= arch/arm/boot/uImage make -f ../scripts/Makefile.build obj=arch/arm/boot/compressed arch/arm/boot/compressed/vmlinux multiple (or no) load addresses: This is incompatible with uImages Specify LOADADDR on the commandline to build an uImage ../arch/arm/boot/Makefile:79: recipe for target 'arch/arm/boot/uImage' failed make[2]: *** [arch/arm/boot/uImage] Error 1 arch/arm/Makefile:329: recipe for target 'uImage' failed make[1]: *** [uImage] Error 2 make[1]: 离开目录“/home/sun/share/build/linux-4.9.145/out” Makefile:152: recipe for target 'sub-make' failed make: *** [sub-make] Error 2

指定 LOADADDR=0xa0008000 后继续编译：

make -f ../scripts/Makefile.build obj=arch/arm/boot MACHINE= arch/arm/boot/Image make -f ../scripts/Makefile.build obj=arch/arm/boot MACHINE= arch/arm/boot/zImage make -f ../scripts/Makefile.build obj=arch/arm/boot/compressed arch/arm/boot/compressed/vmlinux make -f ../scripts/Makefile.build obj=arch/arm/boot MACHINE= arch/arm/boot/uImage make -f ../scripts/Makefile.build obj=arch/arm/boot/compressed arch/arm/boot/compressed/vmlinux /bin/bash ../scripts/mkuboot.sh -A arm -O linux -C none -T kernel -a 0xa0008000 -e 0xa0008000 -n 'Linux-4.9.145' -d arch/arm/boot/zImage arch/arm/boot/uImage "mkimage" command not found - U-Boot images will not be built ../arch/arm/boot/Makefile:79: recipe for target 'arch/arm/boot/uImage' failed make[2]: *** [arch/arm/boot/uImage] Error 1 arch/arm/Makefile:329: recipe for target 'uImage' failed make[1]: *** [uImage] Error 2 make[1]: 离开目录“/home/sun/share/build/linux-4.9.145/out” Makefile:152: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 sun@machine:~/share/build/linux-4.9.145$ make V=1 ARCH=arm O=out LOADADDR=0xa0008000 uImage -j4

其中 LOADADDR=0xa0008000 来自于 u-boot启动时的打印，暂时这么定

U-Boot 2018.11 (Nov 26 2018 - 11:45:35 +0800) DRAM: 128 MiB WARNING: Caches not enabled Flash: 128 MiB MMC: MMC: 0 *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: smc911x-0 Hit any key to stop autoboot: 0 MMC Device 1 not found no mmc device at slot 1 Card did not respond to voltage select! smc911x: MAC 52:54:00:12:34:56 smc911x: detected LAN9118 controller smc911x: phy initialized smc911x: MAC 52:54:00:12:34:56 BOOTP broadcast 1 DHCP client bound to address 10.0.2.15 (3 ms) *** Warning: no boot file name; using '0A00020F.img' Using smc911x-0 device TFTP from server 10.0.2.2; our IP address is 10.0.2.15 Filename '0A00020F.img'. Load address: 0xa0008000 Loading: * TFTP error: 'Access violation' (2)

我的 u-boot 默认的环境：

=> env print arch=arm baudrate=38400 board=vexpress board_name=vexpress boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr} ${prefix}${script}; source ${scriptaddr} boot_efi_binary=if fdt addr ${fdt_addr_r}; then bootefi bootmgr ${fdt_addr_r};else bootefi bootmgr ${fdtcontroladdr};fi;load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} efi/boot/bootarm.efi; if fdt addr ${fdt_addr_r}; then bootefi ${kernel_addr_r} ${fdt_addr_r};else bootefi ${kernel_addr_r} ${fdtcontroladdr};fi boot_extlinux=sysboot ${devtype} ${devnum}:${distro_bootpart} any ${scriptaddr} ${prefix}extlinux/extlinux.conf boot_prefixes=/ /boot/ boot_script_dhcp=boot.scr.uimg boot_scripts=boot.scr.uimg boot.scr boot_targets=mmc1 mmc0 pxe dhcp bootargs=root=/dev/sda1 rw console=ttyAMA0,38400n8 mem=1024M mtdparts=armflash:1M@0x800000(uboot),7M@0x1000000(kernel),24M@0x2000000(initrd) mmci.fmax=190000 devtmpfs.mount=0 vmalloc=256M bootcmd=run distro_bootcmd; run bootflash bootcmd_dhcp=if dhcp ${scriptaddr} ${boot_script_dhcp}; then source ${scriptaddr}; fi;setenv efi_fdtfile ${fdtfile}; if test -z "${fdtfile}" -a -n "${soc}"; then setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; fi; setenv efi_old_vci ${bootp_vci};setenv efi_old_arch ${bootp_arch};setenv bootp_vci PXEClient:Arch:00010:UNDI:003000;setenv bootp_arch 0xa;if dhcp ${kernel_addr_r}; then tftpboot ${fdt_addr_r} dtb/${efi_fdtfile};if fdt addr ${fdt_addr_r}; then bootefi ${kernel_addr_r} ${fdt_addr_r}; else bootefi ${kernel_addr_r} ${fdtcontroladdr};fi;fi;setenv bootp_vci ${efi_old_vci};setenv bootp_arch ${efi_old_arch};setenv efi_fdtfile;setenv efi_old_arch;setenv efi_old_vci; bootcmd_mmc0=setenv devnum 0; run mmc_boot bootcmd_mmc1=setenv devnum 1; run mmc_boot bootcmd_pxe=dhcp; if pxe get; then pxe boot; fi

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