Re: Switch shared library default backend to solib-target.c

[Pedro Alves <pedro at codesourcery dot com>]

On Tuesday 15 June 2010 21:37:10, Pedro Alves wrote:
> On Tuesday 15 June 2010 18:58:57, Pedro Alves wrote:
> > This patch changes GDB to default to enabling target
> > reported shared libraries.  I've applied it.
> > 
> > It does that by using solib-target.c by default, instead of
> > solib-null.c.  The patch actually gets rid of solib-null.c entirely.
> > This means that for example, a generic elf gdb build (e.g., arm-eabi, without a
> > default OSABI), can be used to debug random RTOSs that report loaded
> > shared libraries using the "qXfer:libraries:read" remote protocol
> > packet.
> > 
> > Since solib-target.c behaves exactly the same as solib-null.c
> > when the target doesn't implement the TARGET_OBJECT_LIBRARIES
> > xfer, this is always either a win, or a nop.
> 
> I thought about this a bit and realized that it probably
> warrants a NEWS entry.  I'll post one soon.

Is this okay?  (The patch below is against the 7.2 branch.)

-- 
Pedro Alves

2010-07-21  Pedro Alves  <pedro@codesourcery.com>

	* NEWS: Mention target reported shared libraries support by
	default.

---
 gdb/NEWS |    8 ++++++++
 1 file changed, 8 insertions(+)

Index: src/gdb/NEWS
===================================================================
--- src.orig/gdb/NEWS	2010-07-21 19:15:34.000000000 +0100
+++ src/gdb/NEWS	2010-07-21 20:04:09.000000000 +0100
@@ -3,6 +3,14 @@
 
 *** Changes since GDB 7.1
 
+* Shared library support for remote targets by default
+
+  When GDB is configured for a generic, non-OS specific target, like
+  for example, --target=arm-eabi or one of the many *-*-elf targets,
+  GDB now queries remote stubs for loaded shared libraries using the
+  `qXfer:libraries:read' packet.  Previously, shared library support
+  was always disabled for such configurations.
+
 * C++ Improvements:
 
   ** Argument Dependent Lookup (ADL)