From: Will Deacon <will.deacon@arm.com>
Date: Fri, 3 Sep 2010 09:42:55 +0000 (+0100)
Subject: ARM: 6357/1: hw-breakpoint: add new ptrace requests for hw-breakpoint interaction
X-Git-Tag: v2.6.37-rc1~184^2~7^4~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=864232fa1a2f8dfe003438ef0851a56722740f3e;p=pandora-kernel.git

ARM: 6357/1: hw-breakpoint: add new ptrace requests for hw-breakpoint interaction

For debuggers to take advantage of the hw-breakpoint framework in the kernel,
it is necessary to expose the API calls via a ptrace interface.

This patch exposes the hardware breakpoints framework as a collection of
virtual registers, accesible using PTRACE_SETHBPREGS and PTRACE_GETHBPREGS
requests. The breakpoints are stored in the debug_info struct of the running
thread.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: S. Karthikeyan <informkarthik@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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