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GDB 4.18 is released! Version 4.18 of GDB, the GNU Debugger, is now available via anonymous FTP. GDB is a source-level debugger for C, C++, and many other languages. GDB can target (i.e. debug programs running on) dozens of different processor architectures, and GDB itself can run on most popular Unix variants, Windows NT, and Windows 95. You can download GDB from either Project GNU's FTP server or any of its mirrors, or Cygnus's Sourceware site: ftp://ftp.gnu.org/pub/gnu/gdb ftp://sourceware.cygnus.com/pub/gdb The previous version, 4.17, was released about a year ago; there have been many changes and additions since then. Details are below. The vital stats: -rw-r--r-- 1 jimb cygnus 11657032 Apr 7 16:44 gdb-4.18.tar.gz The md5sum checksum is: 828d28487af6cec074639c1102569473 gdb-4.18.tar.gz There is a web page for GDB at: http://sourceware.cygnus.com/gdb/ That page includes information about GDB mailing lists (an announcement mailing list, developers discussion lists, etc.), 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! (Send them to bug-gdb@prep.ai.mit.edu) Jim Blandy and the rest of the Cygnus GDB Team Cygnus Solutions *** Changes in GDB-4.18: * New native configurations HP-UX 10.20 hppa*-*-hpux10.20 HP-UX 11.x hppa*-*-hpux11.0* M68K Linux m68*-*-linux* * New targets Fujitsu FR30 fr30-*-elf* Intel StrongARM strongarm-*-* Mitsubishi D30V d30v-*-* * OBSOLETE configurations Gould PowerNode, NP1 np1-*-*, pn-*-* Configurations that have been declared obsolete will be commented out, but the code will be left in place. If there is no activity to revive these configurations before the next release of GDB, the sources will be permanently REMOVED. * ANSI/ISO C As a compatibility experiment, GDB's source files buildsym.h and buildsym.c have been converted to pure standard C, no longer containing any K&R compatibility code. We believe that all systems in use today either come with a standard C compiler, or have a GCC port available. If this is not true, please report the affected configuration to bug-gdb@gnu.org immediately. See the README file for information about getting a standard C compiler if you don't have one already. * Readline 2.2 GDB now uses readline 2.2. * set extension-language You can now control the mapping between filename extensions and source languages by using the `set extension-language' command. For instance, you can ask GDB to treat .c files as C++ by saying set extension-language .c c++ The command `info extensions' lists all of the recognized extensions and their associated languages. * Setting processor type for PowerPC and RS/6000 When GDB is configured for a powerpc*-*-* or an rs6000*-*-* target, you can use the `set processor' command to specify what variant of the PowerPC family you are debugging. The command set processor NAME sets the PowerPC/RS6000 variant to NAME. GDB knows about the following PowerPC and RS6000 variants: ppc-uisa PowerPC UISA - a PPC processor as viewed by user-level code rs6000 IBM RS6000 ("POWER") architecture, user-level view 403 IBM PowerPC 403 403GC IBM PowerPC 403GC 505 Motorola PowerPC 505 860 Motorola PowerPC 860 or 850 601 Motorola PowerPC 601 602 Motorola PowerPC 602 603 Motorola/IBM PowerPC 603 or 603e 604 Motorola PowerPC 604 or 604e 750 Motorola/IBM PowerPC 750 or 750 At the moment, this command just tells GDB what to name the special-purpose processor registers. Since almost all the affected registers are inaccessible to user-level programs, this command is only useful for remote debugging in its present form. * HP-UX support Thanks to a major code donation from Hewlett-Packard, GDB now has much more extensive support for HP-UX. Added features include shared library support, kernel threads and hardware watchpoints for 11.00, support for HP's ANSI C and C++ compilers, and a compatibility mode for xdb and dbx commands. * Catchpoints HP's donation includes the new concept of catchpoints, which is a generalization of the old catch command. On HP-UX, it is now possible to catch exec, fork, and vfork, as well as library loading. This means that the existing catch command has changed; its first argument now specifies the type of catch to be set up. See the output of "help catch" for a list of catchpoint types. * Debugging across forks On HP-UX, you can choose which process to debug when a fork() happens in the inferior. * TUI HP has donated a curses-based terminal user interface (TUI). To get it, build with --enable-tui. Although this can be enabled for any configuration, at present it only works for native HP debugging. * GDB remote protocol additions A new protocol packet 'X' that writes binary data is now available. Default behavior is to try 'X', then drop back to 'M' if the stub fails to respond. The settable variable `remotebinarydownload' allows explicit control over the use of 'X'. For 64-bit targets, the memory packets ('M' and 'm') can now contain a full 64-bit address. The command set remoteaddresssize 32 can be used to revert to the old behaviour. For existing remote stubs the change should not be noticed, as the additional address information will be discarded. In order to assist in debugging stubs, you may use the maintenance command `packet' to send any text string to the stub. For instance, maint packet heythere sends the packet "$heythere#<checksum>". Note that it is very easy to disrupt a debugging session by sending the wrong packet at the wrong time. The compare-sections command allows you to compare section data on the target to what is in the executable file without uploading or downloading, by comparing CRC checksums. * Tracing can collect general expressions You may now collect general expressions at tracepoints. This requires further additions to the target-side stub; see tracepoint.c and doc/agentexpr.texi for further details. * mask-address variable for Mips For Mips targets, you may control the zeroing of the upper 32 bits of a 64-bit address by entering `set mask-address on'. This is mainly of interest to users of embedded R4xxx and R5xxx processors. * Higher serial baud rates GDB's serial code now allows you to specify baud rates 57600, 115200, 230400, and 460800 baud. (Note that your host system may not be able to achieve all of these rates.) * i960 simulator The i960 configuration now includes an initial implementation of a builtin simulator, contributed by Jim Wilson.