From b11959a81be8dd1f25f3132b83b0c71b8ab948b3 Mon Sep 17 00:00:00 2001 From: Thiago Jung Bauermann Date: Wed, 18 Aug 2010 18:03:51 +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 393b0368196..448c4359774 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. + 2010-08-13 Doug Evans * gdb.texinfo (.debug_gdb_scripts section): Fix typo. diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index f4bd2a69477..708a5d5bfa2 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -18421,6 +18421,19 @@ 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 -- 2.47.2