From 66b73624e86af015d447b3653a45593bb5f733ae Mon Sep 17 00:00:00 2001 From: Thiago Jung Bauermann Date: Wed, 18 Aug 2010 17:58:48 +0000 Subject: [PATCH] * gdb.texinfo (PowerPC Embedded): Mention support for the DVC register. --- gdb/doc/ChangeLog | 4 ++++ gdb/doc/gdb.texinfo | 13 +++++++++++++ 2 files changed, 17 insertions(+) diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 36099c2..f5ae128 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,7 @@ +2010-08-18 Thiago Jung Bauermann + + * gdb.texinfo (PowerPC Embedded): Mention support for the DVC register. + 2010-08-16 Tom Tromey * gdb.texinfo (Set Watchpoints): Document -location option. diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index fa50761..f493d59 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -18472,6 +18472,19 @@ Set suspend trace mode. @node PowerPC Embedded @subsection PowerPC Embedded +@cindex DVC register +@value{GDBN} supports using the DVC (Data Value Compare) register to +implement in hardware simple hardware watchpoint conditions of the form: + +@smallexample +(@value{GDBP}) watch @var{ADDRESS|VARIABLE} \ + if @var{ADDRESS|VARIABLE} == @var{CONSTANT EXPRESSION} +@end smallexample + +The DVC register will be automatically used whenever @value{GDBN} detects +such pattern in a condition expression. This feature is available in native +@value{GDBN} running on a Linux kernel version 2.6.34 or newer. + @value{GDBN} provides the following PowerPC-specific commands: @table @code -- 2.7.4