進階-源碼編譯的相關知識

1.在路徑 /trunk/tools/firmware-utils/src/mktplinkfw.c 這個文件裏邊有個「fw max len」，默認3c0000是4M的，請改爲7c0000 （這一步把固件最大限制改爲8M）,若是是16mflash,請改爲fc0000(最大限制改爲16m)。

二、修改target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr841n.c（找相應文件）

4M:

 41 .name = "u-boot",

 42 .offset = 0,

 43 .size = 0x020000,

 44 .mask_flags = MTD_WRITEABLE,

 45 }, {

 46 .name = "kernel",

 47 .offset = 0x020000,

 48 .size = 0x140000,

 49 }, {

 50 .name = "rootfs",

 51 .offset = 0x160000,

 52 .size = 0x290000,

 53 }, {

 54 .name = "art",

 55 .offset = 0x3f0000,

 56 .size = 0x010000,

 57 .mask_flags = MTD_WRITEABLE,

 58 }, {

 59 .name = "firmware",

 60 .offset = 0x020000,

 61 .size = 0x3d0000,

 62 }

 63 };

8M::

 41 .name = "u-boot",

 42 .offset = 0,

 43 .size = 0x020000,

 44 .mask_flags = MTD_WRITEABLE,

 45 }, {

 46 .name = "kernel",

 47 .offset = 0x020000,

 48 .size = 0x140000,

 49 }, {

 50 .name = "rootfs",

 51 .offset = 0x160000,

 52 .size = 0x690000,

 53 }, {

 54 .name = "art",

 55 .offset = 0x7f0000,

 56 .size = 0x010000,

 57 .mask_flags = MTD_WRITEABLE,

 58 }, {

 59 .name = "firmware",

 60 .offset = 0x020000,

 61 .size = 0x7d0000,

 62 }

 63 };

16M::

 41 .name = "u-boot",

 42 .offset = 0,

 43 .size = 0x020000,

 44 .mask_flags = MTD_WRITEABLE,

 45 }, {

 46 .name = "kernel",

 47 .offset = 0x020000,

 48 .size = 0x140000,

 49 }, {

 50 .name = "rootfs",

 51 .offset = 0x160000,

 52 .size = 0xe90000,

 53 }, {

 54 .name = "art",

 55 .offset = 0xff0000,

 56 .size = 0x010000,

 57 .mask_flags = MTD_WRITEABLE,

 58 }, {

 59 .name = "firmware",

 60 .offset = 0x020000,

 61 .size = 0xfd0000,

 62 }

 63 };

8M::

 0x000000000000-0x000000020000 : "u-boot"

 0x000000020000-0x000000160000 : "kernel"

 0x000000160000-0x0000007f0000 : "rootfs"

 0x000000620000-0x0000007f0000 : "rootfs_data"

 0x0000007f0000-0x000000800000 : "art"

 0x000000020000-0x0000007f0000 : "firmware"

4M::

 0x000000000000-0x000000020000 : "u-boot"

 0x000000020000-0x000000160000 : "kernel"

 0x000000160000-0x0000003f0000 : "rootfs"

 0x000000304000-0x0000003f0000 : "rootfs_data"

 0x0000003f0000-0x000000400000 : "art"

 0x000000020000-0x0000003f0000 : "firmware"

16M::

 0x000000000000-0x000000020000 : "u-boot"

 0x000000020000-0x000000160000 : "kernel"

 0x000000160000-0x000000ff0000 : "rootfs"

 0x000000380000-0x000000ff0000 : "rootfs_data"

 0x000000ff0000-0x000001000000 : "art"

 0x000000020000-0x000000ff0000 : "firmware"

所有恢復後再 ./scripts/feeds update -a 安裝最新源碼 ./scripts/feeds install -a

更新版本號 svn up

進入編譯組件包菜單 make menuconfig

 開始編譯 make V=99