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authorAdrian Bunk <bunk@kernel.org>2008-07-25 01:45:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 10:53:27 -0700
commitb03f6489f9f27dc519a4c60ebf39cc7b8a58eae7 (patch)
tree6329fc91e860f2949d737c611aa846eb2d653103 /kernel/Makefile
parent696adfe84c11c571a1e0863460ff0ec142b4e5a9 (diff)
downloadop-kernel-dev-b03f6489f9f27dc519a4c60ebf39cc7b8a58eae7.zip
op-kernel-dev-b03f6489f9f27dc519a4c60ebf39cc7b8a58eae7.tar.gz
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/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/Makefile b/kernel/Makefile
index 15ab63f..54f69837 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/
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