gas 0f handling

[deliverable/binutils-gdb.git] / gdb / NEWS

diff --git a/gdb/NEWS b/gdb/NEWS
index 8b813afc477249b0b726d3c21973f12f7b8a7281..950a8664cdd2e15d11660e9ed450d470d173953a 100644 (file)
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -1,12 +1,33 @@
                What has changed in GDB?
             (Organized release by release)
 
-*** Changes since GDB 7.9
+*** Changes since GDB 7.10
+
+* Support for tracepoints on aarch64-linux was added in GDBserver.
+
+* The 'record instruction-history' command now indicates speculative execution
+  when using the Intel(R) Processor Trace recording format.
+
+* GDB now allows users to specify explicit locations, bypassing
+  the linespec parser.  This feature is also available to GDB/MI
+  clients.
+
+* New commands
+
+maint set target-non-stop (on|off|auto)
+maint show target-non-stop
+  Control whether GDB targets always operate in non-stop mode even if
+  "set non-stop" is "off".  The default is "auto", meaning non-stop
+  mode is enabled if supported by the target.
+
+*** Changes in GDB 7.10
 
 * Support for process record-replay and reverse debugging on aarch64*-linux*
   targets has been added.  GDB now supports recording of A64 instruction set
   including advance SIMD instructions.
 
+* Support for Sun's version of the "stabs" debug file format has been removed.
+
 * GDB now honors the content of the file /proc/PID/coredump_filter
   (PID is the process ID) on GNU/Linux systems.  This file can be used
   to specify the types of memory mappings that will be included in a
@@ -64,7 +85,9 @@
 
 * The HISTSIZE environment variable is no longer read when determining
   the size of GDB's command history.  GDB now instead reads the dedicated
-  GDBHISTSIZE environment variable.
+  GDBHISTSIZE environment variable.  Setting GDBHISTSIZE to "-1" or to "" now
+  disables truncation of command history.  Non-numeric values of GDBHISTSIZE
+  are ignored.
 
 * Guile Scripting
 
@@ -93,6 +116,12 @@ maint print symbol-cache-statistics
 maint flush-symbol-cache
   Flush the contents of the symbol cache.
 
+maint set target-non-stop (on|off|auto)
+maint show target-non-stop
+  Control whether GDB targets always operate in non-stop mode even if
+  "set non-stop" is "off".  The default is "auto", meaning non-stop
+  mode is enabled if supported by the target.
+
 record btrace bts
 record bts
   Start branch trace recording using Branch Trace Store (BTS) format.
@@ -108,6 +137,23 @@ show mpx bound
 set mpx bound on i386 and amd64
    Support for bound table investigation on Intel(R) MPX enabled applications.
 
+record btrace pt
+record pt
+  Start branch trace recording using Intel(R) Processor Trace format.
+
+maint info btrace
+  Print information about branch tracing internals.
+
+maint btrace packet-history
+  Print the raw branch tracing data.
+
+maint btrace clear-packet-history
+  Discard the stored raw branch tracing data.
+
+maint btrace clear
+  Discard all branch tracing data.  It will be fetched and processed
+  anew by the next "record" command.
+
 * New options
 
 set debug dwarf-die
@@ -141,6 +187,10 @@ show max-completions
   to avoid generating large completion lists, the computation of
   which can cause the debugger to become temporarily unresponsive.
 
+set history remove-duplicates
+show history remove-duplicates
+  Control the removal of duplicate history entries.
+
 maint set symbol-cache-size
 maint show symbol-cache-size
   Control the size of the symbol cache.
@@ -155,6 +205,16 @@ set debug linux-namespaces
 show debug linux-namespaces
   Control display of debugging info regarding Linux namespaces.
 
+set|show record btrace pt buffer-size
+  Set and show the size of the ring buffer used for branch tracing in
+  Intel(R) Processor Trace format.
+  The obtained size may differ from the requested size.  Use "info
+  record" to see the obtained buffer size.
+
+maint set|show btrace pt skip-pad
+  Set and show whether PAD packets are skipped when computing the
+  packet history.
+
 * The command 'thread apply all' can now support new option '-ascending'
   to call its specified command for all threads in ascending order.
 
@@ -171,6 +231,15 @@ qXfer:btrace-conf:read
 Qbtrace-conf:bts:size
   Set the requested ring buffer size for branch tracing in BTS format.
 
+Qbtrace:pt
+  Enable Intel(R) Procesor Trace-based branch tracing for the current
+  process.  The remote stub reports support for this packet to GDB's
+  qSupported query.
+
+Qbtrace-conf:pt:size
+  Set the requested ring buffer size for branch tracing in Intel(R) Processor
+  Trace format.
+
 swbreak stop reason
   Indicates a memory breakpoint instruction was executed, irrespective
   of whether it was GDB that planted the breakpoint or the breakpoint
@@ -238,6 +307,17 @@ fork-events and vfork-events features in qSupported
 HP/PA running HP-UX           hppa*-*-hpux*
 Itanium running HP-UX         ia64-*-hpux*
 
+* New configure options
+
+--with-intel-pt
+  This configure option allows the user to build GDB with support for
+  Intel(R) Processor Trace (default: auto).  This requires libipt.
+
+--with-libipt-prefix=PATH
+  Specify the path to the version of libipt that GDB should use.
+  $PATH/include should contain the intel-pt.h header and
+  $PATH/lib should contain the libipt.so library.
+
 *** Changes in GDB 7.9.1
 
 * Python Scripting