Where are the files necessary to modify when adding a system call to linux-2.6.31

Posted by mustafabattal on Stack Overflow See other posts from Stack Overflow or by mustafabattal
Published on 2010-04-18T05:50:27Z Indexed on 2010/04/18 5:53 UTC
Read the original article Hit count: 287

Filed under:

syscall

|

unistd.h

|

linux-kernel

|

version

Hi,

when i search for adding a system call, i get many articles but they seem to be for old versions, it also seems like a trivial process.

But the problem is, the directories that articles suggest does not hold for the version 2.6.31. does anyone know where unistd.h, syscall_table.S and syscalls.h or their corresponding files are?

Thanks in advance.

© Stack Overflow or respective owner

Related posts about syscall

Tracing Silex from PHP to the OS with DTrace

as seen on Oracle Blogs - Search for 'Oracle Blogs'
In this blog post I show the full stack tracing of Brendan Gregg's php_syscolors.d script in the DTrace Toolkit. The Toolkit contains a dozen very useful PHP DTrace scripts and many more scripts for other languages and the OS. For this example, I'll trace the PHP micro framework Silex, which… >>> More
syscall from within GCC inline assembly

as seen on Stack Overflow - Search for 'Stack Overflow'
is it possible to write a single character using a syscall from within an inline assembly block? if so, how? it should look "something" like this: __asm__ __volatile__ ( " movl $1, %%edx \n\t" " movl $80, %%ecx \n\t" … >>> More
find substring and indices in mips

as seen on Stack Overflow - Search for 'Stack Overflow'
im trying find out substring and first occurrence indices. but something wrong. im comparing each element of pattern array and each element of string array until pointer reach to '\0'. and if any characater found it keep in temp array. and increasing pointers +1. whats the problem. algorithm is totaly… >>> More
How does a syscall knows where the wrapper function put its parameters in?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to implement a syscall in Linux (RedHat Enterprise 8) and I'm a bit confused about the way it works. From what I understand, I implement a wrapper in user mode which puts the syscall number in eax and parameters in ebx, ecx, edx, etc, and then invokes int 0x80 which calls the appropriate… >>> More
reading the file name from user input in MIPS assembly

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm writing a MIPS assembly code that will ask the user for the file name and it will produce some statistics about the content of the file. However, when I hard code the file name into a variable from the beginning it works just fine, but when I ask the user to input the file name it does not work… >>> More

Related posts about unistd.h

What is the difference between the various unistd.h under /usr/include in Linux ?

as seen on Stack Overflow - Search for 'Stack Overflow'
Under the /usr/include directory in Linux i entered the command: find -type f -name unistd.h which gave the following output: ./unistd.h ./linux/unistd.h ./asm-generic/unistd.h ./bits/unistd.h ./asm/unistd.h ./sys/unistd.h my question is, what is the purpose of each unistd.h, since there is only… >>> More
unistd.h related problem when compiling bison & flex program under vc++

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm using bison & flex (downloaded via cygwin) with vc++. When I compile the program I got an error: ...: fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory The corresponding code in the flex-generated file is: #ifndef YY_NO_UNISTD_H /* Special case for "unistd… >>> More
Issues writing to serial port on MAC OSX using unistd.h in c

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to write to a bluetooth device on MAC OSX using the unistd.h Linux functions in c. I am connecting fine and writing the first few bytes with success. When I try to write other commands to it (there are bytes added to the write buffer every 15ms), I don't see any results even though the… >>> More
Getting the process id of a current process without unistd.h

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm working on a deadlock detection algorithm and I'm only given kernel level libraries, i.e. #include <linux/somelibrary> and nothing else. Are there kernel-level facilities that will allow me to get the pid of the current process similar to getpid() of unistd.h? >>> More
Where are the files necessary to modify when adding a system call to linux-2.6.31

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, when i search for adding a system call, i get many articles but they seem to be for old versions, it also seems like a trivial process. But the problem is, the directories that articles suggest does not hold for the version 2.6.31. does anyone know where unistd.h, syscall_table.S and syscalls… >>> More