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authorThiago Jung Bauermann <bauerman@br.ibm.com>2010-08-18 17:58:48 +0000
committerThiago Jung Bauermann <bauerman@br.ibm.com>2010-08-18 17:58:48 +0000
commit66b73624e86af015d447b3653a45593bb5f733ae (patch)
tree1470ccf9243e7b40d5bdab5fab90ceed1fffd677
parentf1208f9e0a164d55b91416876a5881321d3851b7 (diff)
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* gdb.texinfo (PowerPC Embedded): Mention support for the DVC register.
-rw-r--r--gdb/doc/ChangeLog4
-rw-r--r--gdb/doc/gdb.texinfo13
2 files changed, 17 insertions, 0 deletions
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 <bauerman@br.ibm.com>
+
+ * gdb.texinfo (PowerPC Embedded): Mention support for the DVC register.
+
2010-08-16 Tom Tromey <tromey@redhat.com>
* 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