【问题】
折腾：
【记录】Cygwin下用arm-xscale-linux-gnueabi交叉编译Linux内核
期间，解决了：
【已解决】Cygwin下配置Linux内核出错：Makefile:419: *** mixed implicit and normal rules. Stop.
后，又出现错误：
CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ make whgs_defconfig HOSTCC scripts/basic/fixdep scripts/basic/fixdep.c: In function ‘parse_config_file’: scripts/basic/fixdep.c:242:4: warning: array subscript has type ‘char’ [-Wchar-subscripts] scripts/basic/fixdep.c: In function ‘parse_dep_file’: scripts/basic/fixdep.c:319:4: warning: array subscript has type ‘char’ [-Wchar-subscripts] scripts/basic/fixdep.c: In function ‘traps’: scripts/basic/fixdep.c:371:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] scripts/basic/fixdep.c:373:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] /bin/sh: scripts/basic/fixdep: cannot execute binary file make[1]: *** [scripts/basic/fixdep] Error 126 make: *** [scripts_basic] Error 2
如图：
【解决过程】
1.去看了看对应的那个文件：
CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ ls scripts/basic/fixdep fixdep fixdep.c fixdep.exe CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ ls scripts/basic/fixdep* -lha -rwxr-xr-x 1 CLi Domänen-Benutzer 9.2K Nov 7 2012 scripts/basic/fixdep* -rw-r--r-- 1 CLi Domänen-Benutzer 9.4K Oct 17 2012 scripts/basic/fixdep.c -rwxr-xr-x 1 CLi Domänen-Benutzer 61K Aug 22 16:44 scripts/basic/fixdep.exe* CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ users CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ whoami CLi CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ file scripts/basic/fixdep scripts/basic/fixdep: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ file scripts/basic/fixdep.exe scripts/basic/fixdep.exe: PE32 executable (console) Intel 80386, for MS Windows CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $
好像是：
scripts/basic/fixdep.exe：是cygwin下面可以执行的；
而：
scripts/basic/fixdep ：是在Linux下才可以执行
2.这人：
Cross-compiling Linux kernel for ARM on Windows using Sourcery Toolchain
遇到类似问题。
然后参考别人说法，试试再次添加ARCH和CROSS_COMPILE，看看是否有效，结果问题依旧：
CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ make whgs_defconfig ARCH=arm CROSS_COMPILE=arm-xscale-linux-gnueabi- HOSTCC scripts/basic/fixdep scripts/basic/fixdep.c: In function ‘parse_config_file’: scripts/basic/fixdep.c:242:4: warning: array subscript has type ‘char’ [-Wchar-subscripts] scripts/basic/fixdep.c: In function ‘parse_dep_file’: scripts/basic/fixdep.c:319:4: warning: array subscript has type ‘char’ [-Wchar-subscripts] scripts/basic/fixdep.c: In function ‘traps’: scripts/basic/fixdep.c:371:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] scripts/basic/fixdep.c:373:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] /bin/sh: scripts/basic/fixdep: cannot execute binary file make[1]: *** [scripts/basic/fixdep] Error 126 make: *** [scripts_basic] Error 2
3.去试了试，此处：
scripts/basic/fixdep
没法在cygwin下运行：
CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ scripts/basic/fixdep bash: scripts/basic/fixdep: cannot execute binary file
然后试试exe能否运行，然后是可以的：
CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ scripts/basic/fixdep.exe Usage: fixdep <depfile> <target> <cmdline>
所以，可以想办法，用fixdep.exe 代替此处的fixdep
或者是把两者改名：
CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ mv scripts/basic/fixdep.exe scripts/basic/fixdep.exe_backup CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ mv scripts/basic/fixdep scripts/basic/fixdep_backup CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ cp scripts/basic/fixdep.exe_backup scripts/basic/fixdep CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ ls scripts/basic/fixdep* -lha -rwxr-xr-x 1 CLi Domänen-Benutzer 61K Aug 22 17:08 scripts/basic/fixdep* -rw-r--r-- 1 CLi Domänen-Benutzer 9.4K Oct 17 2012 scripts/basic/fixdep.c -rwxr-xr-x 1 CLi Domänen-Benutzer 61K Aug 22 17:03 scripts/basic/fixdep.exe_backup* -rwxr-xr-x 1 CLi Domänen-Benutzer 9.2K Nov 7 2012 scripts/basic/fixdep_backup* CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ file scripts/basic/fixdep scripts/basic/fixdep: PE32 executable (console) Intel 80386, for MS Windows
然后再去配置看看，或许就可以了。
结果的确可以了，至少此处暂时解决此问题了：
CLi@PC-CLI-1 ~/develop/kernel/linux-2.6.19.1 $ make whgs_defconfig HOSTCC scripts/basic/fixdep scripts/basic/fixdep.c: In function ‘parse_config_file’: scripts/basic/fixdep.c:242:4: warning: array subscript has type ‘char’ [-Wchar-subscripts] scripts/basic/fixdep.c: In function ‘parse_dep_file’: scripts/basic/fixdep.c:319:4: warning: array subscript has type ‘char’ [-Wchar-subscripts] scripts/basic/fixdep.c: In function ‘traps’: scripts/basic/fixdep.c:371:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] scripts/basic/fixdep.c:373:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] HOSTCC scripts/basic/docproc
如图：
【总结】
cygwin下，去交叉编译linux内核，去配置时，出现错误：
| /bin/sh: scripts/basic/fixdep: cannot execute binary file |
的原因是：
Host的gcc，此处为cygwin中的gcc，编译fixdep.c出两个文件：
scripts/basic/fixdep: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
scripts/basic/fixdep.exe: PE32 executable (console) Intel 80386, for MS Windows
很明显，此处fixdep是无法再cygwin下运行的。
由于fixdep.exe可以在cygwin下运行，所以，
解决办法是：
把fixdep.exe，改名为fixdep，就可以暂时解决此问题了。
个人觉得，此解决办法不够好，不够彻底。
也许以后（自己或别人）能找到更好的办法。
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