内核x86_64中的syscall_table位于哪里? [英] Where is located syscall_table in kernel x86_64?

问题描述

我正在尝试向Linux内核(x86_64)添加新的系统调用.基于本文，它解释了如何将系统调用添加到内核(x86).文章说，我需要在名为 syscall_table_32.S 的文件中定义我的系统调用名称，该文件位于 src/arch/x86/syscall_table_32.S 中.

I'm trying to add new System Call to Linux Kernel(x86_64). Based on this article which explained how to add System Call to Kernel(x86). The article says I need to define my System Call name in a file called syscall_table_32.S which is located in src/arch/x86/syscall_table_32.S.

但是在我的情况下，内核源代码中没有名为 syscall_table_32.S 或 syscall_table_64.S 的文件！在 src/arch/中甚至没有用于x64系统调用表的目录.

But in my case, there is no file named syscall_table_32.S or syscall_table_64.S in the kernel source! There isn't even a directory for x64 System Call table in src/arch/.

那么，在内核3.13.0-14-generic(x86_64)中定义的 syscall_table_64.S 在哪里?在哪里可以定义新的系统调用?

So, where is syscall_table_64.S defined in kernel 3.13.0-14-generic (x86_64) ? Where can I define a new system call?

推荐答案

3.3及更高版本与本指南使用的2.X不同.您应该在 arch/x86/目录中找到 syscalls 目录.也是如此:

Version 3.3 onward are different from 2.X that the guide use. You should look for the syscalls directory, in the arch/x86/ directory. So is:

cd /kernel-src/arch/x86/syscalls/syscall_64.tbl

kernel-src 是您的内核源代码所在的目录.一个好主意是在SO中阅读此答案，并将其与您的资源进行比较.

kernel-src being the directory where your kernel sources resides. A good idea would be reading this answer in SO and compare it with your resource.

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