mipsをクラックする必要があったので、まずbusyboxをビルド
シリアルをつないでみたら、あっさりシェルプロンプト。拍子抜け。
でも、busyboxには何にもコマンドがない。
エンディアンはbigのよう。
Error: Kernel Floating Point Emulator is not supported
な事に... orz
しかたがないので自前でビルド。
toolchainは腐ったのがあるので、それを使うことに。
どうせなら、最新にする？
# wget http://busybox.net/downloads/busybox-1.14.1.tar.gz # tar zxvf busybox-1.14.1.tar.gz # cd busybox-1.14.1 # make menuconfig Busybox Settings ---> Build Options ---> [*] Build BusyBox as a static binary (no shared libs) [*] Force NOMMU build # make ARCH=mips CROSS_COMPILE=/opt/buildroot-gcc346/mipsel-linux-uclibc/bin/
CC miscutils/ionice.o miscutils/ionice.c: In function `ioprio_set': miscutils/ionice.c:16: error: `SYS_ioprio_set' undeclared (first use in this function) miscutils/ionice.c:16: error: (Each undeclared identifier is reported only once miscutils/ionice.c:16: error: for each function it appears in.) miscutils/ionice.c: In function `ioprio_get': miscutils/ionice.c:21: error: `SYS_ioprio_get' undeclared (first use in this function) make[1]: *** [miscutils/ionice.o] エラー 1 make: *** [miscutils] エラー 2
除外。
Miscellaneous Utilities ---> [ ] ionice
CC util-linux/acpid.o util-linux/acpid.c: In function `acpid_main': util-linux/acpid.c:145: error: `EV_SW' undeclared (first use in this function) util-linux/acpid.c:145: error: (Each undeclared identifier is reported only once util-linux/acpid.c:145: error: for each function it appears in.) util-linux/acpid.c:146: error: `SW_LID' undeclared (first use in this function) make[1]: *** [util-linux/acpid.o] エラー 1 make: *** [util-linux] エラー 2
除外。
Linux System Utilities ---> [ ] acpid
CC util-linux/mount.o util-linux/mount.c:526:2: #error "You need to build uClibc with UCLIBC_HAS_RPC for NFS support." make[1]: *** [util-linux/mount.o] エラー 1 make: *** [util-linux] エラー 2
toolchainの問題か... orz
除外。
Linux System Utilities ---> [*] mount [ ] Support mounting NFS file systems
/opt/buildroot-gcc346/mipsel-linux-uclibc/bin/../lib/gcc/mipsel-linux-uclibc/3.4.6/../../../../mipsel-linux-uclibc/bin/ld: BFD 2.16.1 assertion fail /opt/buildroot-mipsel-r18398/toolchain_build_mipsel_nofpu/binutils-2.16.1/bfd/elfxx-mips.c:2562 networking/lib.a(inetd.o): In function `register_rpc': inetd.c:(.text.register_rpc+0x84): undefined reference to `pmap_unset' inetd.c:(.text.register_rpc+0xa0): undefined reference to `pmap_set' networking/lib.a(inetd.o): In function `unregister_rpc': inetd.c:(.text.unregister_rpc+0x3c): undefined reference to `pmap_unset' networking/lib.a(inetd.o): In function `prepare_socket_fd': inetd.c:(.text.prepare_socket_fd+0x104): undefined reference to `bindresvport' networking/lib.a(inetd.o): In function `reread_config_file': inetd.c:(.text.reread_config_file+0xb40): undefined reference to `getrpcbyname' shell/lib.a(ash.o): In function `forkshell': ash.c:(.text.forkshell+0x30): undefined reference to `BUG_fork_is_unavailable_on_nommu' collect2: ld returned 1 exit status make: *** [busybox_unstripped] エラー 1
なんだよ。
inetdを削除。
Networking Utilities ---> [ ] inetd
/opt/buildroot-gcc346/mipsel-linux-uclibc/bin/../lib/gcc/mipsel-linux-uclibc/3.4.6/../../../../mipsel-linux-uclibc/bin/ld: BFD 2.16.1 assertion fail /opt/buildroot-mipsel-r18398/toolchain_build_mipsel_nofpu/binutils-2.16.1/bfd/elfxx-mips.c:2562 shell/lib.a(ash.o): In function `forkshell': ash.c:(.text.forkshell+0x30): undefined reference to `BUG_fork_is_unavailable_on_nommu' collect2: ld returned 1 exit status make: *** [busybox_unstripped] エラー 1
ashが通らないのかよ...
toolchain糞。
Shells ---> Choose your default shell (hush) ---> [ ] ash
CC networking/tftp.o networking/tftp.c: In function `tftpd_main': networking/tftp.c:635: warning: 'local_file' might be used uninitialized in this function
これは問題なさそう。
CC networking/libiproute/ll_proto.o networking/libiproute/ll_proto.c:24:2: warning: #warning de-bloat
これも。
できた。
# file busybox busybox: ELF 32-bit LSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, stripped
