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Diffstat (limited to 'arch/x86/include/asm/ftrace.h')
-rw-r--r--arch/x86/include/asm/ftrace.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 84b9449be080..9f3130f40807 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -41,6 +41,24 @@ static inline void arch_ftrace_set_direct_caller(struct pt_regs *regs, unsigned
regs->orig_ax = addr;
}
+#ifdef CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS
+struct ftrace_regs {
+ struct pt_regs regs;
+};
+
+static __always_inline struct pt_regs *
+arch_ftrace_get_regs(struct ftrace_regs *fregs)
+{
+ /* Only when FL_SAVE_REGS is set, cs will be non zero */
+ if (!fregs->regs.cs)
+ return NULL;
+ return &fregs->regs;
+}
+
+#define ftrace_instruction_pointer_set(fregs, _ip) \
+ do { (fregs)->regs.ip = (_ip); } while (0)
+#endif
+
#ifdef CONFIG_DYNAMIC_FTRACE
struct dyn_arch_ftrace {