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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2010-09-13 19:25:41 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-09-13 20:41:31 +0200 |
| commit | 05ed160e89baf7f5fb3432d527fec467d2493626 (patch) | |
| tree | 603ca42cf85433e8f87c061140dfcfe1732a5520 /arch/Kconfig | |
| parent | 49553c2ef88749dd502687f4eb9c258bb10a4f44 (diff) | |
| download | lwn-05ed160e89baf7f5fb3432d527fec467d2493626.tar.gz lwn-05ed160e89baf7f5fb3432d527fec467d2493626.zip | |
kprobes: Fix Kconfig dependency
Fix Kconfig dependency among Kprobes, optprobe and kallsyms.
Kprobes uses kallsyms_lookup for finding target function and
checking instruction boundary, thus CONFIG_KPROBES should select
CONFIG_KALLSYMS.
Optprobe is an optional feature which is supported on x86 arch,
and it also uses kallsyms_lookup for checking instructions in
the target function. Since KALLSYMS_ALL just adds symbols of
kernel variables, it doesn't need to select KALLSYMS_ALL.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>,
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: akpm <akpm@linux-foundation.org>
LKML-Reference: <20100913102541.20260.85700.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 4877a8c8ee16..fe48fc7a3eba 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -32,8 +32,9 @@ config HAVE_OPROFILE config KPROBES bool "Kprobes" - depends on KALLSYMS && MODULES + depends on MODULES depends on HAVE_KPROBES + select KALLSYMS help Kprobes allows you to trap at almost any kernel address and execute a callback function. register_kprobe() establishes @@ -45,7 +46,6 @@ config OPTPROBES def_bool y depends on KPROBES && HAVE_OPTPROBES depends on !PREEMPT - select KALLSYMS_ALL config HAVE_EFFICIENT_UNALIGNED_ACCESS bool |