User mode and Kernel mode

[learner01]

What does this mean -:

I had to make a few changes to a C++ header file that runs in kernel mode. And after making the changes, I have to compile that header file in user mode. What does it mean?

[siavoshkc]

As I know kernel mode means the mode that is set by OS and in this mode executing code has the highest privilege. User mode is the CPU operating mode that normal apps run in it. OS switches to kernel mode when it wants to execute a high privileged instruction.
That header files seems to have some high privileged code.

[learner01]

yaa right ..sooo ??

how am i to compile it in usermode? shud i write some makefile to do so?

[siavoshkc]

Compile it like other codes.

[learner01]

i need to compile it in "usermode" and its a .h file ....theres some diff ... i donno tht

[siavoshkc]

As I know .h file is C/C++ header file, nothing else.

[learner01]

Not this difference ...rather

I need to write some user mode program so as to compile this file. What does this imply? one makefile?

[siavoshkc]

I think it is Linux, go to its board.