x86/ftrace: Rename mcount_64.S to ftrace_64.S

With the advent of -mfentry that uses the new "fentry" hook over mcount,
the mcount name is obsolete. Having the code file that ftrace hooks into
called "mcount*.S" is rather misleading. Rename it to ftrace_64.S and
remove the file name reference.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20170323143445.490601451@goodmis.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 84c0059..d3743a3 100644 (file)
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -27,7 +27,7 @@ KASAN_SANITIZE_stacktrace.o := n
 
 OBJECT_FILES_NON_STANDARD_head_$(BITS).o               := y
 OBJECT_FILES_NON_STANDARD_relocate_kernel_$(BITS).o    := y
-OBJECT_FILES_NON_STANDARD_mcount_$(BITS).o             := y
+OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o             := y
 OBJECT_FILES_NON_STANDARD_test_nx.o                    := y
 
 # If instrumentation of this dir is enabled, boot hangs during first second.
@@ -46,7 +46,7 @@ obj-$(CONFIG_MODIFY_LDT_SYSCALL)      += ldt.o
 obj-y                  += setup.o x86_init.o i8259.o irqinit.o jump_label.o
 obj-$(CONFIG_IRQ_WORK)  += irq_work.o
 obj-y                  += probe_roms.o
-obj-$(CONFIG_X86_64)   += sys_x86_64.o mcount_64.o
+obj-$(CONFIG_X86_64)   += sys_x86_64.o ftrace_64.o
 obj-$(CONFIG_X86_ESPFIX64)     += espfix_64.o
 obj-$(CONFIG_SYSFS)    += ksysfs.o
 obj-y                  += bootflag.o e820.o

diff --git a/arch/x86/kernel/mcount_64.S b/arch/x86/kernel/ftrace_64.S
similarity index 99%
rename from arch/x86/kernel/mcount_64.S
rename to arch/x86/kernel/ftrace_64.S
index 7b0d3da..d1be3cb 100644 (file)
--- a/arch/x86/kernel/mcount_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -1,6 +1,4 @@
 /*
- *  linux/arch/x86_64/mcount_64.S
- *
  *  Copyright (C) 2014  Steven Rostedt, Red Hat Inc
  */