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| author | Adrian Bunk <bunk@kernel.org> | 2008-07-25 01:45:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 10:53:27 -0700 |
| commit | b03f6489f9f27dc519a4c60ebf39cc7b8a58eae7 (patch) | |
| tree | 6329fc91e860f2949d737c611aa846eb2d653103 /kernel/Makefile | |
| parent | 696adfe84c11c571a1e0863460ff0ec142b4e5a9 (diff) | |
| download | lwn-b03f6489f9f27dc519a4c60ebf39cc7b8a58eae7.tar.gz lwn-b03f6489f9f27dc519a4c60ebf39cc7b8a58eae7.zip | |
build kernel/profile.o only when requested
Build kernel/profile.o only if CONFIG_PROFILING is enabled.
This makes CONFIG_PROFILING=n kernels smaller.
As a bonus, some profile_tick() calls and one branch from schedule() are
now eliminated with CONFIG_PROFILING=n (but I doubt these are
measurable effects).
This patch changes the effects of CONFIG_PROFILING=n, but I don't think
having more than two choices would be the better choice.
This patch also adds the name of the first parameter to the prototypes
of profile_{hits,tick}() since I anyway had to add them for the dummy
functions.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/Makefile')
| -rw-r--r-- | kernel/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/Makefile b/kernel/Makefile index 15ab63ffe64d..54f69837d35a 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -2,7 +2,7 @@ # Makefile for the linux kernel. # -obj-y = sched.o fork.o exec_domain.o panic.o printk.o profile.o \ +obj-y = sched.o fork.o exec_domain.o panic.o printk.o \ cpu.o exit.o itimer.o time.o softirq.o resource.o \ sysctl.o capability.o ptrace.o timer.o user.o \ signal.o sys.o kmod.o workqueue.o pid.o \ @@ -24,6 +24,7 @@ CFLAGS_REMOVE_sched_clock.o = -pg CFLAGS_REMOVE_sched.o = -mno-spe -pg endif +obj-$(CONFIG_PROFILING) += profile.o obj-$(CONFIG_SYSCTL_SYSCALL_CHECK) += sysctl_check.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-y += time/ |