From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4072 invoked by alias); 17 Apr 2004 00:53:30 -0000 Mailing-List: contact gdb-announce-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-announce-owner@sources.redhat.com Received: (qmail 17667 invoked from network); 17 Apr 2004 00:48:02 -0000 To: gdb-announce@sources.redhat.com Subject: GDB 6.1 Released Message-Id: From: Andrew Cagney Date: Sat, 17 Apr 2004 00:53:00 -0000 X-SW-Source: 2004/txt/msg00001.txt.bz2 GDB 6.1 released! Version 6.1 of GDB, the GNU Debugger, is now available via anonymous FTP. GDB is a source-level debugger for C, C++, Pascal, Objective-C and many other languages. GDB can target (i.e., debug programs running on) more than a dozen different processor architectures, and GDB itself can run on most popular GNU/Liinux, Unix and Microsoft Windows variants. You can download GDB from Project GNU's FTP server in the directory: ftp://ftp.gnu.org/gnu/gdb The previous version, 6.0, was released roughly 6 months ago; and in that time several new features have been added and many bugs have been fixed. The details are below. In addition, a number of late breaking problems have been identified and they are also mentioned below. The vital stats: Size md5sum Name 16693869 f707d21f5a3e963ce059caed75e899a2 gdb-6.1.tar.gz There is a web page for GDB at: http://www.gnu.org/software/gdb/ That page includes information about GDB mailing lists (an announcement mailing list, developers discussion lists, etc.), details on how to access GDB's CVS repository, locations for development snapshots, preformatted documentation, and links to related information around the net. We will put errata notes and host-specific tips for this release on-line as any problems come up. All mailing lists archives are also browsable via the web. Many people have contributed to this release. Thanks to everybody for the help! Keep those fixes and improvements coming in! (See http://www.gnu.org/software/gdb/bugs/) Andrew Cagney on behalf of the GDB Developers. *** Changes in GDB 6.1: * Removed --with-mmalloc Support for the mmalloc memory manager has been removed, as it conflicted with the internal gdb byte cache. * Changes in AMD64 configurations The AMD64 target now includes the %cs and %ss registers. As a result the AMD64 remote protocol has changed; this affects the floating-point and SSE registers. If you rely on those registers for your debugging, you should upgrade gdbserver on the remote side. * Revised SPARC target The SPARC target has been completely revised, incorporating the FreeBSD/sparc64 support that was added for GDB 6.0. As a result support for LynxOS and SunOS 4 has been dropped. Calling functions from within GDB on operating systems with a non-executable stack (Solaris, OpenBSD) now works. * New C++ demangler GDB has a new C++ demangler which does a better job on the mangled names generated by current versions of g++. It also runs faster, so with this and other changes gdb should now start faster on large C++ programs. * DWARF 2 Location Expressions GDB support for location expressions has been extended to support function arguments and frame bases. Older versions of GDB could crash when they encountered these. * C++ nested types and namespaces GDB's support for nested types and namespaces in C++ has been improved, especially if you use the DWARF 2 debugging format. (This is the default for recent versions of GCC on most platforms.) Specifically, if you have a class "Inner" defined within a class or namespace "Outer", then GDB realizes that the class's name is "Outer::Inner", not simply "Inner". This should greatly reduce the frequency of complaints about not finding RTTI symbols. In addition, if you are stopped at inside of a function defined within a namespace, GDB modifies its name lookup accordingly. * New native configurations NetBSD/amd64 x86_64-*-netbsd* OpenBSD/amd64 x86_64-*-openbsd* OpenBSD/alpha alpha*-*-openbsd* OpenBSD/sparc sparc-*-openbsd* OpenBSD/sparc64 sparc64-*-openbsd* * New debugging protocols M32R with SDI protocol m32r-*-elf* * "set prompt-escape-char" command deleted. The command "set prompt-escape-char" has been deleted. This command, and its very obscure effet on GDB's prompt, was never documented, tested, nor mentioned in the NEWS file. * OBSOLETE configurations and files Configurations that have been declared obsolete in this release have been commented out. Unless there is activity to revive these configurations, the next release of GDB will have their sources permanently REMOVED. Sun 3, running SunOS 3 m68*-*-sunos3* Sun 3, running SunOS 4 m68*-*-sunos4* Sun 2, running SunOS 3 m68000-*-sunos3* Sun 2, running SunOS 4 m68000-*-sunos4* Motorola 680x0 running LynxOS m68*-*-lynxos* AT&T 3b1/Unix pc m68*-att-* Bull DPX2 (68k, System V release 3) m68*-bull-sysv* decstation mips-dec-* mips-little-* riscos mips-*-riscos* mips-*-sysv* sonymips mips-sony-* sysv mips*-*-sysv4* (IRIX 5/6 not included) * REMOVED configurations and files SGI Irix-4.x mips-sgi-irix4 or iris4 SGI Iris (MIPS) running Irix V3: mips-sgi-irix or iris Z8000 simulator z8k-zilog-none or z8ksim Matsushita MN10200 w/simulator mn10200-*-* H8/500 simulator h8500-hitachi-hms or h8500hms HP/PA running BSD hppa*-*-bsd* HP/PA running OSF/1 hppa*-*-osf* HP/PA Pro target hppa*-*-pro* PMAX (MIPS) running Mach 3.0 mips*-*-mach3* 386BSD i[3456]86-*-bsd* Sequent family i[3456]86-sequent-sysv4* i[3456]86-sequent-sysv* i[3456]86-sequent-bsd* SPARC running LynxOS sparc-*-lynxos* SPARC running SunOS 4 sparc-*-sunos4* Tsqware Sparclet sparclet-*-* Fujitsu SPARClite sparclite-fujitsu-none or sparclite Known problems in GDB 6.1 See also: http://www.gnu.org/software/gdb/bugs/ *** Build problems build/1458: comple failed on hpux11 GDB 6.1 is known to have build problems on HP/UX 11.00 using the vendor supplied compilers (GDB does build on HP/UX 11.11, and using GCC). *** Misc gdb/1560: Control-C does not always interrupt GDB. When GDB is busy processing a command which takes a long time to complete, hitting Control-C does not have the expected effect. The command execution is not aborted, and the "QUIT" message confirming the abortion is displayed only after the command has been completed. *** C++ support gdb/931: GDB could be more generous when reading types C++ templates on input When the user types a template, GDB frequently requires the type to be typed in a certain way (e.g. "const char*" as opposed to "const char *" or "char const *" or "char const*"). gdb/1512: no canonical way to output names of C++ types We currently don't have any canonical way to output names of C++ types. E.g. "const char *" versus "char const *"; more subtleties arise when dealing with templates. gdb/1516: [regression] local classes, gcc 2.95.3, dwarf-2 With gcc 2.95.3 and the dwarf-2 debugging format, classes which are defined locally to a function include the demangled name of the function as part of their name. For example, if a function "foobar" contains a local class definition "Local", gdb will say that the name of the class type is "foobar__Fi.0:Local". This applies only to classes where the class type is defined inside a function, not to variables defined with types that are defined somewhere outside any function (which most types are). gdb/1588: names of c++ nested types in casts must be enclosed in quotes You must type (gdb) print ('Foo::Bar') x or (gdb) print ('Foo::Bar' *) y instead of (gdb) print (Foo::Bar) x or (gdb) print (Foo::Bar *) y respectively. gdb/1091: Constructor breakpoints ignored gdb/1193: g++ 3.3 creates multiple constructors: gdb 5.3 can't set breakpoints When gcc 3.x compiles a C++ constructor or C++ destructor, it generates 2 or 3 different versions of the object code. These versions have unique mangled names (they have to, in order for linking to work), but they have identical source code names, which leads to a great deal of confusion. Specifically, if you set a breakpoint in a constructor or a destructor, gdb will put a breakpoint in one of the versions, but your program may execute the other version. This makes it impossible to set breakpoints reliably in constructors or destructors. gcc 3.x generates these multiple object code functions in order to implement virtual base classes. gcc 2.x generated just one object code function with a hidden parameter, but gcc 3.x conforms to a multi-vendor ABI for C++ which requires multiple object code functions. *** Stack backtraces GDB's core code base has been updated to use a new backtrace mechanism. This mechanism makes it possible to support new features such DWARF 2 Call Frame Information (which in turn makes possible backtraces through optimized code). Since this code is new, it is known to still have a few problems: gdb/1505: [regression] gdb prints a bad backtrace for a thread When backtracing a thread, gdb does not stop when it reaches the outermost frame, instead continuing until it hits garbage. This is sensitive to the operating system and thread library. hppa*-*-* mips*-*-* The MIPS and HPPA backtrace code has only very recently been updated to use GDB's new frame mechanism. At present there are still a few problems, in particular backtraces through signal handlers do not work. People encountering problems with these architectures should consult GDB's web pages and mailing lists (http://www.gnu.org/software/gdb/) to see if there are updates. powerpc*-*-* PowerPC architecture support, in 6.1, does not use the new frame code. Fortunately, PowerPC architecture support, in GDB's mainline sources, have been updated. People encountering problems should consider downloading a more current snapshot of GDB (http://www.gnu.org/software/gdb/current/).