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[PATCH] Kprobes ia64 cleanup

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A cleanup of the ia64 kprobes implementation such that all of the bundle
manipulation logic is concentrated in arch_prepare_kprobe().

With the current design for kprobes, the arch specific code only has a
chance to return failure inside the arch_prepare_kprobe() function.

This patch moves all of the work that was happening in arch_copy_kprobe()
and most of the work that was happening in arch_arm_kprobe() into
arch_prepare_kprobe().  By doing this we can add further robustness checks
in arch_arm_kprobe() and refuse to insert kprobes that will cause problems.

Signed-off-by: Rusty Lynch <Rusty.lynch@intel.com>
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Rusty Lynch
2005-06-23 00:09:30 -07:00
committed by Linus Torvalds
parent cd2675bf65
commit 8bc76772ad
2 changed files with 86 additions and 103 deletions
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7
include/asm-ia64/kprobes.h
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@@ -30,6 +30,8 @@
#define BREAK_INST (long)(__IA64_BREAK_KPROBE << 6)
struct kprobe;
typedef struct _bundle {
struct {
unsigned long long template : 5;
@@ -79,6 +81,11 @@ static inline void jprobe_return(void)
{
}
/* ia64 does not need this */
static inline void arch_copy_kprobe(struct kprobe *p)
{
}
#ifdef CONFIG_KPROBES
extern int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);