uClinux编译方法.doc

uClinux编译方法在/pub/uClinux/arm-elf-tools/ 下载arm-elf-tools-20030314.sh在/pub/uClinux/dist/ 下载uClinux-dist-20041215.tar.gz执行./arm-elf-tools-20030314.sh，安装工具链，执行tar zxvf uClinux-dist-20041215.tar.gz并进入uClinux-dist目录。 在linux-2.4.x/arch/armnommu/vmlinux-armv.lds.in文件中找到以下行: *(got) /* Global Offset table */在其之后添加如下语句：romfs_data = .;romfs.oromfs_data_end = .;注意，等号两边都要有空格。 在vendors/Samsung/4510B/Makefile 文件中添加image目标的第三行，增加一条语句：arm-elf-ld -r -o $(ROOTDIR)/$(LINUXDIR)/romfs.o -b binary $(ROMFSIMG) 如下为增加之后：image: -d $(IMAGEDIR) | mkdir -p $(IMAGEDIR)genromfs -v -V ROMdisk -f $(ROMFSIMG) -d $(ROMFSDIR)arm-elf-ld r o /root/uclinux/uClinux-dist/linux-2.4.x/romfs.o b binary /root/uclinux/uClinux-dist/images/romfs.img(/root/uclinux是我存放uClinux-dist的目录) 修改linux-2.4.x/drivers/char/serial_samsung.c, 找到uart_config数组,把如下项： S3C4510B, 1, 0, /* Samsung S3C4510B uart support */修改为： S3C4510B, 128, 0, /* Samsung S3C4510B uart support */ 执行make menuconfig 此处设置成S3C44B0X 修改config/.config，注释掉CONFIG_USER_OLD_PASSWORDS 执行make dep 执行make lib_only 执行make user_only 执行make romfs 修改linux-2.4.x/arch/armnommu/mach-S3C44B0X/arch.c 将23行的S3C44B0X改为S3C44B0 在代码末尾添加” 修改linux-2.4.x/arch/armnommu/kernel/head-armv.S 将206行以及439行的S3C44B0X改为S3C44B0 执行make make成功后，uClinux-dist目录里将出现一个images目录。我编译的是uClinux-dist-20041215.tar.gz在编译过程中并没有出现错误。代码:* * SkyEye Simulator Ver 0.9.5 with GDB/Insight 5.3 Interface * *GNU gdb 5.3Copyright 2002 Free Software Foundation, Inc.GDB is free software, covered by the GNU General Public License, and you arewelcome to change it and/or distribute copies of it under certain conditions.Type show copying to see the conditions.There is absolutely no warranty for GDB. Type show warranty for details.This SkyEye was configured as -host=i686-pc-linux-gnu -target=arm-elf.(SkyEye) target simcpu info: armv3, arm7tdmi, 41007700, fff8ff00, 0mach info: name at91, mach_init addr 0x8160154nic0 info: state=1, ethmod num=1, mac addr=0:5:3:2:1:f, hostip=9nic_init_begintapif_init begintapif_init: fd 6tapif_init: system(ifconfig tap0 inet 9);tapif_init endnic_init_endSKYEYE: use arm7100 mmu opsLoaded ROM ./boot.romConnected to the simulator.(SkyEye) loadLoading section .init, size 0xa000 vma 0x1000000Loading section .text, size 0xd72e8 vma 0x100a000Loading section .data, size 0x9b30 vma 0x10e2000Start address 0x1000000Transfer rate: 7696576 bits in 1 sec.(SkyEye) rStarting program: /root/uClinux/Source/uclinux/uClinux-dist/linux-2.4.x/linuxLinux version 2.4.24-uc0 (rootTEST) (gcc version 2.95.3 20010315 (release) #11 Fri Jul 1 15:35:29 CST 2005Processor: Atmel AT91M40xxx revision 0Architecture: EB01On node 0 totalpages: 1024zone(0): 0 pages.zone(1): 1024 pages.zone(2): 0 pages.Kernel command line: root=/dev/rom0Calibrating delay loop. 15.82 BogoMIPSMemory: 4MB = 4MB totalMemory: 2952KB available (860K code, 185K data, 40K init)Dentry cache hash table entries: 512 (order: 0, 4096 bytes)Inode cache hash table entries: 512 (order: 0, 4096 bytes)Mount cache hash table entries: 512 (order: 0, 4096 bytes)Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)Page-cache hash table entries: 1024 (order: 0, 4096 bytes)POSIX conformance testing by UNIFIXLinux NET4.0 for Linux 2.4Based upon Swansea University Computer Society NET3.039Initializing RT netlink socketStarting kswapdAtmel USART driver version 0.99ttyS0 at 0xfffd0000 (irq = 2) is a builtin Atmel APB USARTttyS1 at 0xfffcc000 (irq = 3) is a builtin Atmel APB USARTBlkmem copyright 1998,1999 D. Jeff DionneBlkmem copyright 1998 Kenneth AlbanowskiBlkmem 1 disk images:0: 1400000-15103FF VIRTUAL 1400000-15103FF (RO)RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksizepktgen.c: v1.3: Packet Generator for packet performance testing.pktgen: Error: your machine does not have working cycle counter.NET4: Linux TCP/IP 1.0 for NET4.0IP Protocols: ICMP, UDP, TCPIP: routing cache hash table of 512 buckets, 4KbytesTCP: Hash tables configured (established 512 bind 512)NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.VFS: Mounted root (romfs filesystem) readonly.BINFMT_FLAT: reloc outside program 0x74790000 (0 - 0x1bb5c/0x6d50), killing init!BINFMT_FLAT: reloc outside program 0x74790000 (0 - 0x1bb5c/0x6d50), killing init!BINFMT_FLAT: reloc outside program 0x74790000 (0 - 0x1bb5c/0x6d50), killing init!BINFMT_FLAT: reloc outside program 0x74790000 (0 - 0x1bb5c/0x6d50), killing init!BINFMT_FLAT: reloc outside program 0x84340100 (0 - 0x14248/0x10950), killing sh!BINFMT_FLAT: reloc outside program 0x84340100 (0 - 0x14248/0x10950), killing sh!Kernel panic: No init found. Try passing init= option to kernel.代码:#skyeye config file samplecpu: arm7tdmimach: at91mem_bank: map=M, type=RW, addr=0x00000000, size=0x00004000mem_bank: map=M, type=RW, addr=0x01000000, size=0x00400000mem_bank: map=M, type=R, addr=0x01400000, size=0x00400000, file=./boot.rom #romfs.img并没有超过这个sizemem_bank: map=M, type=RW, addr=0x02000000, size=0x00400000mem_bank: map=M, type=RW, addr=0x02400000, size=0x00008000mem_bank: map=M, type=RW, addr=0x04000000, size=0x00400000mem_bank: map=I, type=RW, addr=0xf0000000, size=0x10000000#set nic info state=on/off mac=xx:xx:xx:xx:xx:xx ethmod=tuntap/vnet hostip=dd.dd.dd.ddnet: state=on, mac=0:5:3:2:1:f, ethmod=tuntap, hostip=9我的tool-chain是都是下面这个URL的RPM包