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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2013-04-04 19:40:50 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-04-08 17:28:34 +0200 |
| commit | 324670b620ab1ed00ba160e435686bd2ae4a59ce (patch) | |
| tree | 176c0f872668097350fa6c38cddd884088862ce6 | |
| parent | cc2f5a8adbc7ab1fdb7d9bcf4ea9838c73e82dfe (diff) | |
| download | olio-linux-3.10-324670b620ab1ed00ba160e435686bd2ae4a59ce.tar.xz olio-linux-3.10-324670b620ab1ed00ba160e435686bd2ae4a59ce.zip | |
kprobes: Move __kprobes definition into compiler.h
Currently, __kprobes is defined in linux/kprobes.h which
is too big to be included in small or basic headers
that want to make use of this simple attribute.
So move __kprobes definition into linux/compiler.h
in which other compiler attributes are defined.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Nadia Yvette Chambers <nyc@holomorphy.com>
Cc: yrl.pp-manager.tt@hitachi.com
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20130404104049.21071.20908.stgit@mhiramat-M0-7522
[ Improved the attribute explanation a bit. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | include/linux/compiler.h | 6 | ||||
| -rw-r--r-- | include/linux/kprobes.h | 6 |
2 files changed, 7 insertions, 5 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 10b8f23fab0..92669cd182a 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -351,4 +351,10 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); */ #define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) +/* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */ +#ifdef CONFIG_KPROBES +# define __kprobes __attribute__((__section__(".kprobes.text"))) +#else +# define __kprobes +#endif #endif /* __LINUX_COMPILER_H */ diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 4b6ef4d33cc..ca1d27a0d6a 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -29,6 +29,7 @@ * <jkenisto@us.ibm.com> and Prasanna S Panchamukhi * <prasanna@in.ibm.com> added function-return probes. */ +#include <linux/compiler.h> /* for __kprobes */ #include <linux/linkage.h> #include <linux/list.h> #include <linux/notifier.h> @@ -49,16 +50,11 @@ #define KPROBE_REENTER 0x00000004 #define KPROBE_HIT_SSDONE 0x00000008 -/* Attach to insert probes on any functions which should be ignored*/ -#define __kprobes __attribute__((__section__(".kprobes.text"))) - #else /* CONFIG_KPROBES */ typedef int kprobe_opcode_t; struct arch_specific_insn { int dummy; }; -#define __kprobes - #endif /* CONFIG_KPROBES */ struct kprobe; |