March 2013 - kernelnewbies@kernelnewbies.org - Kernelnewbies Mailing Lists

relocatable modules' symbols
by horseriver March 1, 2013

March 1, 2013

hi: I have built vmlinux at the top dir of kernel source ,then I use objdump to look into its section information.I find the statup_32 which is the start routine of kernel , locats at 0xc0100000. I know the 0x100000 is the defined address for locating protect-mode code .But which I can not understand is the 0xc prefix .where does it come from? thanks!

6 7

Examples of Per-CPU Variables in Kernel source
by Shraddha Kamat March 1, 2013

March 1, 2013

I was reading about Per-CPU Variables from UTLK. Where are such variables used in the kernel source code - example. -- Shraddha

3 3

atomic operations
by Shraddha Kamat March 1, 2013

March 1, 2013

what is the relation between atomic operations and memory alignment ? I read from UTLK that "an unaligned memory access is not atomic" please explain me , I am not able to get the relationship between memory alignment and atomicity of the operation.

5 4