[7.2][RFA] Mention new booke features in the NEWS file

[7.2][RFA] Mention new booke features in the NEWS file

[Thiago Jung Bauermann]

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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.



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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

Re: [7.2][RFA] Mention new booke features in the NEWS file

[Eli Zaretskii]

> From: Thiago Jung Bauermann <bauerman@br.ibm.com>
> Date: Fri, 16 Jul 2010 15:54:25 -0300
> 
> I'd like to mention support for the new Linux ptrace interface on
> PowerPC which enables hardware debug features in BookE processors. Ok?

Yes.

> +* 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.
                                ^^^^^^^^^^
"breakpoints"

> +  This works on native GDB running on Linux kernels with the extended ptrace
                ^^
"in"

Thanks.

Re: [7.2][RFA] Mention new booke features in the NEWS file

[Thiago Jung Bauermann]

On Sat, 2010-07-17 at 00:19 +0300, Eli Zaretskii wrote:
> > From: Thiago Jung Bauermann <bauerman@br.ibm.com>
> > Date: Fri, 16 Jul 2010 15:54:25 -0300
> > 
> > I'd like to mention support for the new Linux ptrace interface on
> > PowerPC which enables hardware debug features in BookE processors. Ok?
> 
> Yes.

Thanks, I made the fixes you mentioned and committed both in HEAD and in
the branch.
-- 
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center