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authorluka <luka@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-12-09 11:30:16 +0000
committerluka <luka@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-12-09 11:30:16 +0000
commitcad63b7342795aaf6aa071b687aeeeae5803e539 (patch)
tree6801a4a597f522841cb2417c3edfa1cea336f802 /config
parent4c3e665ffa751a681e18d1f145a36f1288d44543 (diff)
config: add KERNEL_DYNAMIC_DEBUG option
Useful when debugging kernel which uses this infrastructure, for example ubi/ubifs. Signed-off-by: Luka Perkov <luka@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39007 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'config')
-rw-r--r--config/Config-kernel.in12
1 files changed, 12 insertions, 0 deletions
diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index d5b565ea5e..3347254cb6 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -68,6 +68,18 @@ config KERNEL_DEBUG_LL
help
ARM low level debugging
+config KERNEL_DYNAMIC_DEBUG
+ bool "Compile the kernel with dynamic printk"
+ select KERNEL_DEBUG_FS
+ default n
+ help
+ Compiles debug level messages into the kernel, which would not
+ otherwise be available at runtime. These messages can then be
+ enabled/disabled based on various levels of scope - per source file,
+ function, module, format string, and line number. This mechanism
+ implicitly compiles in all pr_debug() and dev_dbg() calls, which
+ enlarges the kernel text size by about 2%.
+
config KERNEL_EARLY_PRINTK
bool "Compile the kernel with early printk"
default n