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authorJason Wessel <jason.wessel@windriver.com>2008-08-01 08:39:34 -0500
committerJason Wessel <jason.wessel@windriver.com>2008-08-01 08:39:34 -0500
commit5f5ddfb3605d2a4f555a7ff034859e623eafcd27 (patch)
treef3a79d9f0ba631ed8d5e10560ab6cca2debe2f65 /Documentation/DocBook/kgdb.tmpl
parent94ad374a0751f40d25e22e036c37f7263569d24c (diff)
downloadkernel-5f5ddfb3605d2a4f555a7ff034859e623eafcd27.tar.gz
kgdb: remove the requirement for CONFIG_FRAME_POINTER
There is no technical reason that the kgdb core requires frame pointers. It is up to the end user of KGDB to decide if they need them or not. [ anemo@mba.ocn.ne.jp: removed frame pointers on mips ] Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Diffstat (limited to 'Documentation/DocBook/kgdb.tmpl')
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diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl
index e8acd1f03456..54d3b158d080 100644
--- a/Documentation/DocBook/kgdb.tmpl
+++ b/Documentation/DocBook/kgdb.tmpl
@@ -98,6 +98,14 @@
"Kernel debugging" select "KGDB: kernel debugging with remote gdb".
</para>
<para>
+ It is advised, but not required that you turn on the
+ CONFIG_FRAME_POINTER kernel option. This option inserts code to
+ into the compiled executable which saves the frame information in
+ registers or on the stack at different points which will allow a
+ debugger such as gdb to more accurately construct stack back traces
+ while debugging the kernel.
+ </para>
+ <para>
Next you should choose one of more I/O drivers to interconnect debugging
host and debugged target. Early boot debugging requires a KGDB
I/O driver that supports early debugging and the driver must be