[ERROR] Linux kernel compile error elf_x86_64 missing

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错误一：

CC      arch/x86/vdso/vgetcpu.o
CC      arch/x86/vdso/vvar.o
VDSO    arch/x86/vdso/vdso.so.dbggcc: Error: elf_x86_64: File or directory not found
make[2]: *** [arch/x86/vdso/vdso.so.dbg] Error 1
make[1]: *** [arch/x86/vdso] Error 2
make: *** [arch/x86] Error 2

解决方案：

I changed in arch/x86/vdso/Makefile

VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 [...]
...
VDSO_LDFLAGS_vdso32.lds = -m elf_x86 [...]

to

VDSO_LDFLAGS_vdso.lds = -m64 [...]
...
VDSO_LDFLAGS_vdso32.lds = -m32 [...]

原文：

https://stackoverflow.com/questions/22662906/linux-kernel-compile-error-elf-x86-64-missing

错误二：

Can't use 'defined(@array)' (Maybe you should just omit the defined()?) at kernel/timeconst.pl line 373.
/home/muhe/linux_kernel/linux-2.6.32.1/linux-2.6.32.1/kernel/Makefile:129: recipe for target 'kernel/timeconst.h' failed
make[1]: *** [kernel/timeconst.h] Error 255
Makefile:878: recipe for target 'kernel' failed
make: *** [kernel] Error 2

解决方案：（修改了kernel/timeconst.h这个地方defined(@val)，修改成了@val）

    @val = @{$canned_values{$hz}};
-   if (!defined(@val)) {
+   if (!@val) {@val = compute_values($hz);}output($hz, @val);
--

373c373
< 	if (!@val) {
---
> 	if (!defined(@val)) {

参考：
https://my.oschina.net/hanxiaodong/blog/755703
http://www.playpenguin.net/an-zhuo-nei-he-bian-yi-cuo-wu-kerneltimeconsth-definedval.html

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