On Thu, May 14, 2020 at 08:58:18AM -0400, Steven Rostedt wrote:
start_offset = (unsigned long)ftrace_caller;end_offset = (unsigned long)ftrace_epilogue;
--- Subject: x86/ftrace: Fix compile error
When building x86-64 kernels, my compiler is sad about a missing symbol.
Fixes: 59566b0b622e ("x86/ftrace: Have ftrace trampolines turn read-only at the end of system boot up") Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org --- arch/x86/kernel/ftrace.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index f8917a6f25b7..1cf7d69402e2 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -286,6 +286,7 @@ extern void ftrace_regs_caller_ret(void); extern void ftrace_caller_end(void); extern void ftrace_caller_op_ptr(void); extern void ftrace_regs_caller_op_ptr(void); +extern void ftrace_epilogue(void);
/* movq function_trace_op(%rip), %rdx */ /* 0x48 0x8b 0x15 <offset-to-ftrace_trace_op (4 bytes)> */