Commit-ID: 324670b620ab1ed00ba160e435686bd2ae4a59ce Gitweb: http://git.kernel.org/tip/324670b620ab1ed00ba160e435686bd2ae4a59ce Author: Masami Hiramatsu <[email protected]> AuthorDate: Thu, 4 Apr 2013 19:40:50 +0900 Committer: Ingo Molnar <[email protected]> CommitDate: Mon, 8 Apr 2013 17:28:34 +0200
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 <[email protected]> Cc: Timo Juhani Lindfors <[email protected]> Cc: Ananth N Mavinakayanahalli <[email protected]> Cc: Pavel Emelyanov <[email protected]> Cc: Jiri Kosina <[email protected]> Cc: Nadia Yvette Chambers <[email protected]> Cc: [email protected] Cc: David S. Miller <[email protected]> Cc: Linus Torvalds <[email protected]> Link: http://lkml.kernel.org/r/20130404104049.21071.20908.stgit@mhiramat-M0-7522 [ Improved the attribute explanation a bit. ] Signed-off-by: Ingo Molnar <[email protected]> --- include/linux/compiler.h | 6 ++++++ 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 10b8f23..92669cd 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 4b6ef4d..ca1d27a 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -29,6 +29,7 @@ * <[email protected]> and Prasanna S Panchamukhi * <[email protected]> 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
