2011年7月28日

[installer 2891] gdb-7.3

gdb-7.3 出ています。

☆ gdb-7.3
http://www.gnu.org/software/gdb/
http://ftp.gnu.org/gnu/gdb/gdb-7.3.tar.gz
ftp://ftp.gnu.org/gnu/gdb/gdb-7.3.tar.gz

*** Changes in GDB 7.3


* GDB has a new command: "thread find [REGEXP]".
It finds the thread id whose name, target id, or thread extra info
matches the given regular expression.

* The "catch syscall" command now works on mips*-linux* targets.

* The -data-disassemble MI command now supports modes 2 and 3 for
dumping the instruction opcodes.

* New command line options

-data-directory DIR Specify DIR as the "data-directory".
This is mostly for testing purposes.

* The "maint set python auto-load on|off" command has been renamed to
"set auto-load-scripts on|off".

* GDB has a new command: "set directories".
It is like the "dir" command except that it replaces the
source path list instead of augmenting it.

* GDB now understands thread names.

On GNU/Linux, "info threads" will display the thread name as set by
prctl or pthread_setname_np.

There is also a new command, "thread name", which can be used to
assign a name internally for GDB to display.

* OpenCL C
Initial support for the OpenCL C language http://www.khronos.org/opencl)
has been integrated into GDB.

* Python scripting

** The function gdb.Write now accepts an optional keyword 'stream'.
This keyword, when provided, will direct the output to either
stdout, stderr, or GDB's logging output.

** Parameters can now be be sub-classed in Python, and in particular
you may implement the get_set_doc and get_show_doc functions.
This improves how Parameter set/show documentation is processed
and allows for more dynamic content.

** Symbols, Symbol Table, Symbol Table and Line, Object Files,
Inferior, Inferior Thread, Blocks, and Block Iterator APIs now
have an is_valid method.

** Breakpoints can now be sub-classed in Python, and in particular
you may implement a 'stop' function that is executed each time
the inferior reaches that breakpoint.

** New function gdb.lookup_global_symbol looks up a global symbol.

** GDB values in Python are now callable if the value represents a
function. For example, if 'some_value' represents a function that
takes two integer parameters and returns a value, you can call
that function like so:

result = some_value (10,20)

** Module gdb.types has been added.
It contains a collection of utilities for working with gdb.Types objects:
get_basic_type, has_field, make_enum_dict.

** Module gdb.printing has been added.
It contains utilities for writing and registering pretty-printers.
New classes: PrettyPrinter, SubPrettyPrinter,
RegexpCollectionPrettyPrinter.
New function: register_pretty_printer.

** New commands "info pretty-printers", "enable pretty-printer" and
"disable pretty-printer" have been added.

** gdb.parameter("directories") is now available.

** New function gdb.newest_frame returns the newest frame in the
selected thread.

** The gdb.InferiorThread class has a new "name" attribute. This
holds the thread's name.

** Python Support for Inferior events.
Python scripts can add observers to be notified of events
occurring in the process being debugged.
The following events are currently supported:
- gdb.events.cont Continue event.
- gdb.events.exited Inferior exited event.
- gdb.events.stop Signal received, and Breakpoint hit events.

* C++ Improvements:

** GDB now puts template parameters in scope when debugging in an
instantiation. For example, if you have:

template<int X> int func (void) { return X; }

then if you step into func<5>, "print X" will show "5". This
feature requires proper debuginfo support from the compiler; it
was added to GCC 4.5.

** The motion commands "next", "finish", "until", and "advance" now
work better when exceptions are thrown. In particular, GDB will
no longer lose control of the inferior; instead, the GDB will
stop the inferior at the point at which the exception is caught.
This functionality requires a change in the exception handling
code that was introduced in GCC 4.5.

* GDB now follows GCC's rules on accessing volatile objects when
reading or writing target state during expression evaluation.
One notable difference to prior behavior is that "print x = 0"
no longer generates a read of x; the value of the assignment is
now always taken directly from the value being assigned.

* GDB now has some support for using labels in the program's source in
linespecs. For instance, you can use "advance label" to continue
execution to a label.

* GDB now has support for reading and writing a new .gdb_index
section. This section holds a fast index of DWARF debugging
information and can be used to greatly speed up GDB startup and
operation. See the documentation for `save gdb-index' for details.

* The "watch" command now accepts an optional "-location" argument.
When used, this causes GDB to watch the memory referred to by the
expression. Such a watchpoint is never deleted due to it going out
of scope.

* GDB now supports thread debugging of core dumps on GNU/Linux.

GDB now activates thread debugging using the libthread_db library
when debugging GNU/Linux core dumps, similarly to when debugging
live processes. As a result, when debugging a core dump file, GDB
is now able to display pthread_t ids of threads. For example, "info
threads" shows the same output as when debugging the process when it
was live. In earlier releases, you'd see something like this:

(gdb) info threads
* 1 LWP 6780 main () at main.c:10

While now you see this:

(gdb) info threads
* 1 Thread 0x7f0f5712a700 (LWP 6780) main () at main.c:10

It is also now possible to inspect TLS variables when debugging core
dumps.

When debugging a core dump generated on a machine other than the one
used to run GDB, you may need to point GDB at the correct
libthread_db library with the "set libthread-db-search-path"
command. See the user manual for more details on this command.

* When natively debugging programs on PowerPC BookE processors running
a Linux kernel version 2.6.34 or later, GDB supports ranged breakpoints,
which stop execution of the inferior whenever it executes an instruction
at any address within the specified range. See the "PowerPC Embedded"
section in the user manual for more details.

* New features in the GDB remote stub, GDBserver

** GDBserver is now supported on PowerPC LynxOS (versions 4.x and 5.x),
and i686 LynxOS (version 5.x).

** GDBserver is now supported on Blackfin Linux.

* New native configurations

ia64 HP-UX ia64-*-hpux*

* New targets:

Analog Devices, Inc. Blackfin Processor bfin-*

* Ada task switching is now supported on sparc-elf targets when
debugging a program using the Ravenscar Profile. For more information,
see the "Tasking Support when using the Ravenscar Profile" section
in the GDB user manual.

* Guile support was removed.

* New features in the GNU simulator

** The --map-info flag lists all known core mappings.

** CFI flashes may be simulated via the "cfi" device.

----
こがよういちろう


投稿者 xml-rpc : 2011年7月28日 09:21
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