I know Linux provide int 0x80 fo开发者_开发技巧r trapping into a system call but are there any others and what are their uses?That\'s a pretty broad question but yes, the x86 chip allows a wide variet
I\'m trying to read the char开发者_如何学Goacters from a file in reverse order using lseek. So far, I have:
I know user-mode ss/esp should be saved into the kernel-mode stack for later restore. The question is that to locate kernel-mode stack, ss/esp have to be loaded with the corresponding kernel-mode val
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What does this address specify? 开发者_运维知识库Address of where these are loaded in memory?The kernel starts at a fixed location in the virtual address space of a process. The linux kernel usually [
In the flow of control in linux kernel, found that control moves to IDT which has the location of interrupts(ex: 0x80 system call). And then control moves to the appropriate System call. Also read tha
I am try to make a call to sys_unlink using inline assembly, like this: int sys_unlink(const char *filename) {
I was looking for advice on how to execute a process that is somewhat cross platform. I have written Java and Ruby implementations of my app, but its less of a language specific problem and more of a
in my c++ application I\'ve wrriten t开发者_如何学运维his code: struct ifaddrs *ifap; if (0 != getifaddrs(&ifap)) {
In my c++ application I\'m using getpeername system call and it return 0.0.0.0 in the var sa. there is no error in errno, and the return code is 0.
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