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authorAnanth N Mavinakayanahalli <ananth@in.ibm.com>2008-03-04 14:28:37 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-03-04 16:35:11 -0800
commit9edddaa200df18e08fe0cf21036e8ae467b1363c (patch)
tree26f5319fac24fb6c76b1276b19725caeb5ec24bc /kernel/kprobes.c
parent8182ec49a73729334f5a6c65a607ba7009ebd6d6 (diff)
downloadop-kernel-dev-9edddaa200df18e08fe0cf21036e8ae467b1363c.zip
op-kernel-dev-9edddaa200df18e08fe0cf21036e8ae467b1363c.tar.gz
Kprobes: indicate kretprobe support in Kconfig
Add CONFIG_HAVE_KRETPROBES to the arch/<arch>/Kconfig file for relevant architectures with kprobes support. This facilitates easy handling of in-kernel modules (like samples/kprobes/kretprobe_example.c) that depend on kretprobes being present in the kernel. Thanks to Sam Ravnborg for helping make the patch more lean. Per Mathieu's suggestion, added CONFIG_KRETPROBES and fixed up dependencies. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/kprobes.c')
-rw-r--r--kernel/kprobes.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 7a86e64..e6a61dc 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -678,8 +678,7 @@ void __kprobes unregister_jprobe(struct jprobe *jp)
unregister_kprobe(&jp->kp);
}
-#ifdef ARCH_SUPPORTS_KRETPROBES
-
+#ifdef CONFIG_KRETPROBES
/*
* This kprobe pre_handler is registered with every kretprobe. When probe
* hits it will set up the return probe.
@@ -769,8 +768,7 @@ int __kprobes register_kretprobe(struct kretprobe *rp)
return ret;
}
-#else /* ARCH_SUPPORTS_KRETPROBES */
-
+#else /* CONFIG_KRETPROBES */
int __kprobes register_kretprobe(struct kretprobe *rp)
{
return -ENOSYS;
@@ -781,8 +779,7 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p,
{
return 0;
}
-
-#endif /* ARCH_SUPPORTS_KRETPROBES */
+#endif /* CONFIG_KRETPROBES */
void __kprobes unregister_kretprobe(struct kretprobe *rp)
{
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