由于ptrace.h文件导致的内核编译出错的解决方法

arch/x86/kernel/ptrace.c:1472:17: error: conflicting types for ‘syscall_trace_enter’ 

In file included from /home/rex/Downloads/linux-2.6.32.60/arch/x86/include/asm/vm86.h:130:0, 

                  from /home/rex/Downloads/linux-2.6.32.60/arch/x86/include/asm/processor.h:10, 

                  from /home/rex/Downloads/linux-2.6.32.60/arch/x86/include/asm/thread_info.h:22, 

                  from include/linux/thread_info.h:56, 

                  from include/linux/preempt.h:9, 

                  from include/linux/spinlock.h:50, 

                  from include/linux/seqlock.h:29, 

                  from include/linux/time.h:8, 

                  from include/linux/timex.h:56, 

                  from include/linux/sched.h:56, 

                  from arch/x86/kernel/ptrace.c:11: 

/home/rex/Downloads/linux-2.6.32.60/arch/x86/include/asm/ptrace.h:146:13: note: previous declaration of ‘syscall_trace_enter’ was here 

arch/x86/kernel/ptrace.c:1517:17: error: conflicting types for ‘syscall_trace_leave’ 

In file included from /home/rex/Downloads/linux-2.6.32.60/arch/x86/include/asm/vm86.h:130:0, 

                  from /home/rex/Downloads/linux-2.6.32.60/arch/x86/include/asm/processor.h:10, 

                  from /home/rex/Downloads/linux-2.6.32.60/arch/x86/include/asm/thread_info.h:22, 

                  from include/linux/thread_info.h:56, 

                  from include/linux/preempt.h:9, 

                  from include/linux/spinlock.h:50, 

                  from include/linux/seqlock.h:29, 

                  from include/linux/time.h:8, 

                  from include/linux/timex.h:56, 

                  from include/linux/sched.h:56, 

                  from arch/x86/kernel/ptrace.c:11: 

/home/rex/Downloads/linux-2.6.32.60/arch/x86/include/asm/ptrace.h:147:13: note: previous declaration of ‘syscall_trace_leave’ was here 

make[2]: *** [arch/x86/kernel/ptrace.o] Error 1 

make[1]: *** [arch/x86/kernel] Error 2 

make: *** [arch/x86] Error 2

注意红色标注的两行，说明ptrace.c 文件中第1472行的函数syscall_trace_leave和ptrace.h文件中该函数的声明有冲突，只要将ptrace.h文件中的函数声明改得和ptrace.c中的相同即可。另外，有人专门针对这个错误写了个补丁，地址为https://patchwork.kernel.org/patch/1301031/ 
。

PS ：以前像遇到这种问题的时候，总会认为是自己哪儿出了问题。这个问题让我懂得linux也是像我一样的程序员写出来的，他们也会犯一些常人会犯的错误，所以Linux需要全世界的程序员一起改进  。

--- linux-2.6.32.59/arch/x86/include/asm/ptrace.h
+++ fix_ptrace.o_compile_error/arch/x86/include/asm/ptrace.h
@@ -130,6 +130,7 @@
 #ifdef __KERNEL__
 
 #include <linux/init.h>
+#include <linux/linkage.h>
 
 struct cpuinfo_x86;
 struct task_struct;
@@ -142,8 +143,8 @@
 			 int error_code, int si_code);
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 
-extern long syscall_trace_enter(struct pt_regs *);
-extern void syscall_trace_leave(struct pt_regs *);
+extern asmregparm long syscall_trace_enter(struct pt_regs *);
+extern asmregparm void syscall_trace_leave(struct pt_regs *);
 
 static inline unsigned long regs_return_value(struct pt_regs *regs)
 {