S390: Document guarded-storage register support

This documents the newly added support for guarded-storage registers on
IBM z.

gdb/ChangeLog:

	* NEWS: Advertise support for guarded-storage registers on IBM z.

gdb/doc/ChangeLog:

	* gdb.texinfo (S/390 and System z Features): Document the new
	features org.gnu.gdb.s390.gs and org.gnu.gdb.s390.gsbc.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6eb730f40f6081485168199bc35bcae38ce33593..b6283f6f2a63691bf599cc108675cf69bd12d1a4 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2017-09-25  Andreas Arnez  <arnez@linux.vnet.ibm.com>
+
+       * NEWS: Advertise support for guarded-storage registers on IBM z.
+
 2017-09-25  Andreas Arnez  <arnez@linux.vnet.ibm.com>
 
        * s390-linux-nat.c (have_regset_gs): New static variable.

diff --git a/gdb/NEWS b/gdb/NEWS
index 549f511b29f2f0cecfc56fb57570fd63c035ea44..9246659bfb98c1bba82cf154601f0dfb84bdbe33 100644 (file)
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -3,6 +3,9 @@
 
 *** Changes since GDB 8.0
 
+* GDB now supports access to the guarded-storage-control registers and the
+  software-based guarded-storage broadcast control registers on IBM z14.
+
 * On Unix systems, GDB now supports transmitting environment variables
   that are to be set or unset to GDBserver.  These variables will
   affect the environment to be passed to the remote inferior.

diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index a3612db0393f841a50adf609e1639d85f2f1864b..3e746402ffe6b1fe65646b4d57d9d82d608b9150 100644 (file)
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,8 @@
+2017-09-25  Andreas Arnez  <arnez@linux.vnet.ibm.com>
+
+       * gdb.texinfo (S/390 and System z Features): Document the new
+       features org.gnu.gdb.s390.gs and org.gnu.gdb.s390.gsbc.
+
 2017-09-21  Kevin Buettner  <kevinb@redhat.com>
 
        * gdb.texinfo (qXfer:threads:read): Add documentation for handle

diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 6b320891adf2d063a636368a28dcb47ea33fe618..9905ff651351dbcf77f32d362e774bac1e0e33a0 100644 (file)
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -41857,6 +41857,14 @@ through @samp{f15} to present the 128-bit wide vector registers
 contain the 128-bit wide vector registers @samp{v16} through
 @samp{v31}.
 
+The @samp{org.gnu.gdb.s390.gs} feature is optional.  It should contain
+the 64-bit wide guarded-storage-control registers @samp{gsd},
+@samp{gssm}, and @samp{gsepla}.
+
+The @samp{org.gnu.gdb.s390.gsbc} feature is optional.  It should contain
+the 64-bit wide guarded-storage broadcast control registers
+@samp{bc_gsd}, @samp{bc_gssm}, and @samp{bc_gsepla}.
+
 @node Sparc Features
 @subsection Sparc Features
 @cindex target descriptions, sparc32 features