Hi,<br> <br> I try to define a new system call in the kernel for experimental purpose. After hack the kernel code, I remade the kernel code. But the new system call number is declacred in kernel header 'asm/unistd.h'. For the sake of reference by applications, it is necessary to install the kernel headers into /usr/include.<br>
<br><div> I used the following commands to do that:</div><div><br> make headers_install INSTALL_HDR_PATH=/usr</div><div><br></div><div>Some messages appeared like this:</div><div><br></div><div><div>
<div style="font-family:Tahoma;text-align:-webkit-auto"><font face="Courier New">CHK include/linux/version.h<br>
make[1]: `scripts/unifdef' is up to date.<br>
REMOVE include/FlexLexer.h<br>
REMOVE include/Imlib.h<br>
REMOVE include/Imlib2.h<br>
REMOVE include/Imlib_private.h<br>
REMOVE include/Imlib_types.h<br>
REMOVE include/_G_config.h<br>
REMOVE include/a.out.h<br>
REMOVE include/aio.h<br></font></div><div style="font-family:Tahoma;text-align:-webkit-auto"><font face="Courier New"> ... ... ...</font></div></div></div><div style="font-family:Tahoma;text-align:-webkit-auto">
<font face="Courier New"><br></font></div><div style="font-family:Tahoma;text-align:-webkit-auto"><font face="Courier New">It seems that some original headers in /usr/include was removed. My next 'make' in kernel code failed. I think the standard headers was destoried at all. </font></div>
<div style="font-family:Tahoma;text-align:-webkit-auto"><font face="Courier New"><br></font></div><div style="text-align:-webkit-auto"><font face="Courier New">I tried to install kernel headers in another Linux in another way:</font></div>
<div style="text-align:-webkit-auto"><br></div><div style="text-align:-webkit-auto"> make headers_install</div><div style="text-align:-webkit-auto"> cp -r usr/include/* /usr/include</div>
<div style="text-align:-webkit-auto">Then, it's ok.</div><div style="text-align:-webkit-auto"><br></div><div style="text-align:-webkit-auto">I wonder why the first way can cause some headers in /usr/include was removed. Mybe the kernel headers can not install directly like the first way.</div>
<div style="text-align:-webkit-auto"><br></div><div style="text-align:-webkit-auto"><br></div><div style="text-align:-webkit-auto"><br></div><div style="text-align:-webkit-auto"><br></div>