Kernel command using Linux system calls
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| OKLinux www.oklinux.cn 2007-03-28 来源：IBM developerWorks Worldwide 会员收藏 游客收藏 |
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to be invoked. You can also find the tracing calls as part of the system call request in ./linux/arch/i386/kernel/entry.S (see syscall_trace_entry).
Going further
System calls are an efficient way of traversing between user-space and the kernel to request services in the kernel-space. But they are also tightly controlled, and it's much easier simply to add a new /proc file system entry to provide the user/kernel interactions. When speed is important, however, system calls are an ideal way to squeeze the greatest performance out of your application. See 共8页: 上一页 [1] [2] [3] [4] [5] [6] 7 [8] 下一页 |
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