From 2edc1eaf4b6b2e58f9e0c7d95a7d79d35910c8b2 Mon Sep 17 00:00:00 2001
From: lars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 29 Jan 2009 23:52:35 +0000
Subject: [PATCH] Add menuconfig option for enabling profiling in the kernel.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14272 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 Config.in                  | 6 ++++++
 include/kernel-defaults.mk | 1 +
 2 files changed, 7 insertions(+)

diff --git a/Config.in b/Config.in
index 0f131f062..7c9804453 100644
--- a/Config.in
+++ b/Config.in
@@ -124,6 +124,12 @@ config KERNEL_KALLSYMS
 	default n
 	help
 		This will give you more information in stack traces from kernel oopses
+config KERNEL_PROFILING
+	bool "Compile the kernel with profiling enabled"
+	default n
+	help
+		Enable the extended profiling support mechanisms used by profilers such
+		as OProfile.
 
 endmenu
 
diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk
index 4aa5c0ef1..e3897a64c 100644
--- a/include/kernel-defaults.mk
+++ b/include/kernel-defaults.mk
@@ -87,6 +87,7 @@ endef
 define Kernel/Configure/Default
 	$(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target
 	echo "$(if $(CONFIG_KERNEL_KALLSYMS),CONFIG_KALLSYMS=y,# CONFIG_KALLSYMS is not set)" >> $(LINUX_DIR)/.config.target
+	echo "$(if $(CONFIG_KERNEL_PROFILING),CONFIG_PROFILING=y,# CONFIG_PROFILING is not set)" >> $(LINUX_DIR)/.config.target
 	echo "# CONFIG_KALLSYMS_EXTRA_PASS is not set" >> $(LINUX_DIR)/.config.target
 	echo "# CONFIG_KPROBES is not set" >> $(LINUX_DIR)/.config.target
 	$(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config > $(LINUX_DIR)/.config.override