From: Jason Wessel <jason.wessel@windriver.com>
Date: Wed, 21 Sep 2011 20:07:47 +0000 (-0700)
Subject: kdb: Add message about CONFIG_DEBUG_RODATA on failure to install breakpoint
X-Git-Tag: v3.4-rc1~116^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ba0c1720eb0de2d0f3abf84c0b128d10af520d1;p=pandora-kernel.git

kdb: Add message about CONFIG_DEBUG_RODATA on failure to install breakpoint

On x86, if CONFIG_DEBUG_RODATA is set, one cannot set breakpoints
via KDB.  Apparently this is a well-known problem, as at least one distribution
now ships with both KDB enabled and CONFIG_DEBUG_RODATA=y for security reasons.

This patch adds an printk message to the breakpoint failure case,
in order to provide suggestions about how to use the debugger.

Reported-by: Tim Bird <tim.bird@am.sony.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Tim Bird <tim.bird@am.sony.com>
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