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[7.2][RFA] Mention new booke features in the NEWS file
- From: Thiago Jung Bauermann <bauerman at br dot ibm dot com>
- To: gdb-patches ml <gdb-patches at sourceware dot org>
- Date: Fri, 16 Jul 2010 15:54:25 -0300
- Subject: [7.2][RFA] Mention new booke features in the NEWS file
Hi,
I'd like to mention support for the new Linux ptrace interface on
PowerPC which enables hardware debug features in BookE processors. Ok?
--
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center
2010-07-16 Thiago Jung Bauermann <bauerman@br.ibm.com>
* NEWS: Mention support for the new ptrace interface and hardware
accelerated watchpoint conditions on powerpc-linux.
diff --git a/gdb/NEWS b/gdb/NEWS
index 77c55de..e725a19 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -221,6 +221,21 @@ ARM Symbian arm*-*-symbianelf*
GDB now supports debugging programs written in the D programming
language.
+* GDB now supports the extended ptrace interface for PowerPC which is
+ available since Linux kernel version 2.6.34. This automatically enables
+ any hardware breakpoints and additional hardware watchpoints available in
+ the processor. The old ptrace interface exposes just one hardware
+ watchpoint and no hardware breakpoint.
+
+* GDB is now able to use the Data Value Compare (DVC) register available on
+ embedded PowerPC processors to implement in hardware simple watchpoint
+ conditions of the form:
+
+ watch ADDRESS|VARIABLE if ADDRESS|VARIABLE == CONSTANT EXPRESSION
+
+ This works on native GDB running on Linux kernels with the extended ptrace
+ interface mentioned above.
+
*** Changes in GDB 7.1
* C++ Improvements