tracing/syscalls: support for syscalls tracing on x86, fix

Impact: build fix

 kernel/built-in.o: In function `ftrace_syscall_exit':
 (.text+0x76667): undefined reference to `syscall_nr_to_meta'

ftrace.o is built:

obj-$(CONFIG_DYNAMIC_FTRACE)    += ftrace.o
obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o

But now a CONFIG_FTRACE_SYSCALLS dependency is needed too.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <1236401580-5758-3-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 339ce35..84000eb 100644 (file)
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -66,7 +66,8 @@ obj-$(CONFIG_X86_MPPARSE)     += mpparse.o
 obj-y                          += apic/
 obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
 obj-$(CONFIG_DYNAMIC_FTRACE)   += ftrace.o
-obj-$(CONFIG_FUNCTION_GRAPH_TRACER)    += ftrace.o
+obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
+obj-$(CONFIG_FTRACE_SYSCALLS)  += ftrace.o
 obj-$(CONFIG_KEXEC)            += machine_kexec_$(BITS).o
 obj-$(CONFIG_KEXEC)            += relocate_kernel_$(BITS).o crash.o
 obj-$(CONFIG_CRASH_DUMP)       += crash_dump_$(BITS).o