linux 内核编译错误 error: conflicting types for ‘syscall_trace_enter’

拼搏现实的明天。 2021-07-28 18:44 476阅读 0赞

编译内核出现如下错误：

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。

解决方案如下：

vi arch/x86/include/asm/ptrace.h

130行 添加 \#include <linux/linkage.h>

142 143行 修改代码

原始代码

extern long syscall_trace_enter(struct pt_regs *);
    extern void syscall_trace_leave(struct pt_regs *);

修改后的代码

extern asmregparm long syscall_trace_enter(struct pt_regs *); 
    extern asmregparm void syscall_trace_leave(struct pt_regs *);