summaryrefslogtreecommitdiff
path: root/include/linux/kprobes.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/kprobes.h')
-rw-r--r--include/linux/kprobes.h45
1 files changed, 30 insertions, 15 deletions
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 8f6849084248..c328e4f7dcad 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -29,7 +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/compiler.h>
#include <linux/linkage.h>
#include <linux/list.h>
#include <linux/notifier.h>
@@ -40,9 +40,9 @@
#include <linux/rcupdate.h>
#include <linux/mutex.h>
#include <linux/ftrace.h>
+#include <asm/kprobes.h>
#ifdef CONFIG_KPROBES
-#include <asm/kprobes.h>
/* kprobe_status settings */
#define KPROBE_HIT_ACTIVE 0x00000001
@@ -51,6 +51,7 @@
#define KPROBE_HIT_SSDONE 0x00000008
#else /* CONFIG_KPROBES */
+#include <asm-generic/kprobes.h>
typedef int kprobe_opcode_t;
struct arch_specific_insn {
int dummy;
@@ -278,9 +279,13 @@ struct kprobe_insn_cache {
int nr_garbage;
};
+#ifdef __ARCH_WANT_KPROBES_INSN_SLOT
extern kprobe_opcode_t *__get_insn_slot(struct kprobe_insn_cache *c);
extern void __free_insn_slot(struct kprobe_insn_cache *c,
kprobe_opcode_t *slot, int dirty);
+/* sleep-less address checking routine */
+extern bool __is_insn_slot_addr(struct kprobe_insn_cache *c,
+ unsigned long addr);
#define DEFINE_INSN_CACHE_OPS(__name) \
extern struct kprobe_insn_cache kprobe_##__name##_slots; \
@@ -294,6 +299,18 @@ static inline void free_##__name##_slot(kprobe_opcode_t *slot, int dirty)\
{ \
__free_insn_slot(&kprobe_##__name##_slots, slot, dirty); \
} \
+ \
+static inline bool is_kprobe_##__name##_slot(unsigned long addr) \
+{ \
+ return __is_insn_slot_addr(&kprobe_##__name##_slots, addr); \
+}
+#else /* __ARCH_WANT_KPROBES_INSN_SLOT */
+#define DEFINE_INSN_CACHE_OPS(__name) \
+static inline bool is_kprobe_##__name##_slot(unsigned long addr) \
+{ \
+ return 0; \
+}
+#endif
DEFINE_INSN_CACHE_OPS(insn);
@@ -330,7 +347,6 @@ extern int proc_kprobes_optimization_handler(struct ctl_table *table,
int write, void __user *buffer,
size_t *length, loff_t *ppos);
#endif
-
#endif /* CONFIG_OPTPROBES */
#ifdef CONFIG_KPROBES_ON_FTRACE
extern void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
@@ -481,18 +497,17 @@ static inline int enable_jprobe(struct jprobe *jp)
return enable_kprobe(&jp->kp);
}
-#ifdef CONFIG_KPROBES
-/*
- * Blacklist ganerating macro. Specify functions which is not probed
- * by using this macro.
- */
-#define __NOKPROBE_SYMBOL(fname) \
-static unsigned long __used \
- __attribute__((section("_kprobe_blacklist"))) \
- _kbl_addr_##fname = (unsigned long)fname;
-#define NOKPROBE_SYMBOL(fname) __NOKPROBE_SYMBOL(fname)
-#else
-#define NOKPROBE_SYMBOL(fname)
+#ifndef CONFIG_KPROBES
+static inline bool is_kprobe_insn_slot(unsigned long addr)
+{
+ return false;
+}
+#endif
+#ifndef CONFIG_OPTPROBES
+static inline bool is_kprobe_optinsn_slot(unsigned long addr)
+{
+ return false;
+}
#endif
#endif /* _LINUX_KPROBES_H */