On Fri, 15 Nov 2013 04:53:18 +0000
Masami Hiramatsu <[email protected]> wrote:

> .entry.text is a code area which is used for interrupt/syscall
> entries, and there are many sensitive codes.
> Thus, it is better to prohibit probing on all of such codes
> instead of a part of that.
> Since some symbols are already registered on kprobe blacklist,
> this also removes them from the blacklist.

This change only works with x86. On other archs, I get this:

kernel/built-in.o: In function `register_kprobe':
(.kprobes.text+0x9f4): undefined reference to `__entry_text_start'
kernel/built-in.o: In function `register_kprobe':
(.kprobes.text+0x9f8): undefined reference to `__entry_text_end'
make[1]: *** [vmlinux] Error 1
make: *** [sub-make] Error 2

-- Steve
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