Update for gdb-4.8
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John Gilmore
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179
gdb/NEWS
179
gdb/NEWS
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@ -3,15 +3,16 @@
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*** Changes in GDB-4.8:
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* New features
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* HP Precision Architecture supported
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GDB now supports array constants that can be used in expressions typed in by
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the user. The syntax is `{element, element, ...}'. Ie: you can now type
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`print {1, 2, 3}', and it will build up an array.
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GDB now supports HP PA-RISC machines running HPUX. A preliminary
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version of this support was available as a set of patches from the
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University of Utah. GDB does not support debugging of programs
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compiled with the HP compiler, because HP will not document their file
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format. Instead, you must use GCC (version 2.3.3 or later) and PA-GAS
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(as available from jaguar.cs.utah.edu:/dist/pa-gas.u4.tar.Z).
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There is also a new directory `gdb/sparclite' that contains a program that can
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be run on a Fujitsu SPARClite processor to demonstrate how the sparc-stub
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remote stub works.
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Many problems in the preliminary version have been fixed.
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* Faster and better demangling
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@ -19,7 +20,8 @@ We have improved template demangling and fixed numerous bugs in the GNU style
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demangler. It can now handle type modifiers such as `static' or `const'. Wide
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character types (wchar_t) are now supported. Demangling of each symbol is now
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only done once, and is cached when the symbol table for a file is read in.
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This results in a moderate increase in memory usage, but a fantastic speedup in
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This results in a small increase in memory usage for C programs, a moderate
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increase in memory usage for C++ programs, and a fantastic speedup in
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symbol lookups.
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`Cfront' style demangling still doesn't work with AT&T cfront. It was written
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@ -28,45 +30,50 @@ compiler does not actually implement.
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* Improved configure script
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The `configure' script will now attempt to guess your system type if you don't
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supply a host system type. WE CAN GIVE NO GUARANTEES ABOUT THE VALIDITY OF THE
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GUESSES MADE BY THIS METHOD. The old scheme of supplying a host system triplet
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is greatly preferable over using this. All the magic is done in the new
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`config.guess' script. Examine it for details.
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The `configure' script will now attempt to guess your system type if
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you don't supply a host system type. The old scheme of supplying a
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host system triplet is preferable over using this. All the magic is
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done in the new `config.guess' script. Examine it for details.
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We have also brought our configure script much more in line with the FSF's
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version. It now supports the --with-xxx options. In particular,
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`--with-minimal-bfd' is of interest to those people who want a minimal BFD
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that only supports target file formats.
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`--with-minimal-bfd' can be used to make the GDB binary image smaller.
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The resulting GDB will not be able to read arbitrary object file formats --
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only the format ``expected'' to be used on the configured target system.
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We hope to make this the default in a future release.
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We have also cleaned up the issue with the rpc and ptrace header files for
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VxWorks that was discovered at the last minute during the 4.7 release. You
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should now be able to build a VxWorks GDB.
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* Documentation improvements
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* Documentation
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There's new internal documentation on how to modify GDB, and how to
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produce clean changes to the code. We implore people to read it
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before submitting changes.
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There's lots of new internal documentation on how to modify GDB, and produce
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clean changes to the code. We implore people to look at this before submitting
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changes.
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The GDB manual uses new, sexy Texinfo conditionals, rather than arcane
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M4 macros. The new texinfo.tex is provided in this release. Pre-built
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`info' files are also provided. To build `info' files from scratch,
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you will need the latest `makeinfo' release, which will be available in
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a future texinfo-X.Y release.
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The GDB manual uses new, sexy Texinfo conditionals, rather than the arcane M4
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macros. This requires the use of the new Texinfo program, which is available
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from the same place that you got this copy of GDB.
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*NOTE* The new texinfo.tex can cause old versions of TeX to hang.
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We're not sure exactly which versions have this problem, but it has
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been seen in 3.0. We highly recommend upgrading to TeX version 3.141
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or better. If that isn't possible, there is a patch in
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`texinfo/tex3patch' that will modify `texinfo/texinfo.tex' to work
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around this problem.
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*NOTE* The new Texinfo program produces TeX output that can cause old versions
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of TeX to hang. We're not sure exactly which versions have this problem, but
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it has been seen in 3.0. We highly recommend upgrading to TeX version 3.141 or
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better. If that isn't possible, there is a patch in `texinfo/tex3patch' that
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will modify `texinfo/texinfo.tex' to work around this problem.
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* New features
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* Mmalloc now licensed under the GNU Library General Public License
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GDB now supports array constants that can be used in expressions typed in by
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the user. The syntax is `{element, element, ...}'. Ie: you can now type
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`print {1, 2, 3}', and it will build up an array in memory malloc'd in
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the target program.
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The new directory `gdb/sparclite' contains a program that demonstrates
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how the sparc-stub.c remote stub runs on a Fujitsu SPARClite processor.
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* New native hosts supported
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HP/PA-RISC under HPUX using GNU tools hppa1.1-hp-hpux
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386 CPUs running SCO Unix i386-unknown-scosysv322 or sco
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(core file support added)
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386 CPUs running SCO Unix 3.2v4 i386-unknown-sco3.2v4
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* New targets supported
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@ -75,89 +82,53 @@ AMD 29k family via UDI a29k-amd-udi or udi29k
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* New file formats supported
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BFD now has minimal support for reading HP/PA-RISC executables (SOM?), and
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HPUX core files. We can't write them yet.
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* New commands
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We now accept --silent as an alias for --quiet.
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BFD now supports reading HP/PA-RISC executables (SOM file format?),
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HPUX core files, and SCO 3.2v2 core files.
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* Major bug fixes
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This version fixes the attach problem that many of you reported. We have
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also stomped on a bunch more printf_filtered("%s") problems.
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Attaching to processes now works again; thanks for the many bug reports.
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You can also now ^C a gdb that is attached to a process. This will cause the
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attached process to stop, and give control back to GDB.
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We have also stomped on a bunch of core dumps caused by
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printf_filtered("%s") problems.
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We also fixed a lot of problems associated with either not closing file
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descriptors, or using too many. This was especially a problem for programs
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that used many (~100) shared libraries.
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We eliminated a copyright problem on the rpc and ptrace header files
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for VxWorks, which was discovered at the last minute during the 4.7
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release. You should now be able to build a VxWorks GDB.
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You can now interrupt gdb while an attached process is running. This
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will cause the attached process to stop, and give control back to GDB.
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* Library changes
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We fixed problems caused by using too many file descriptors
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for reading symbols from object files and libraries. This was
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especially a problem for programs that used many (~100) shared
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libraries.
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* Configuration
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The `step' command now only enters a subroutine if there is line number
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information for the subroutine. Otherwise it acts like the `next'
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command. Previously, `step' would enter subroutines if there was
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any debugging information about the routine. This avoids problems
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when using `cc -g1' on MIPS machines.
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* New hosts supported
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* Internal improvements
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GDB's internal interfaces have been improved to make it easier to support
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debugging of multiple languages in the future.
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PA/HPUX support (cleaned up), uses unwind info, needs gcc/gas...
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HP300 native support (???)
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Vax Ultrix native (was already there)
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step only goes into a subr if there is line # info present
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rs6000 bug fixes...
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Language interfaces
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VxWorks/rpc problems resolved
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symbols/psymbols/msymbols combined
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Lotsa host/native/target stuff cleaned up
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GDB now uses a common structure for symbol information internally.
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Minimal symbols (derived from linkage symbols in object files), partial
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symbols (from a quick scan of debug information), and full symbols
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contain a common subset of information, making it easier to write
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shared code that handles any of them.
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Don Allen
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Gerald Baumgartner
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Michael Ben-Gershon
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Art Berggreen
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Karl Berry
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Per Bothner
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Ralph Campbell
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John Carr
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Steve Chamberlain
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Lee W. Cooprider
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John Eaton
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Paul Eggert
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John M. Farell
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Fred Fish
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Eddie Fung
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John Gilmore
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Carl Greco
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Stu Grossman
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Robert R. Henry
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Nobuyuki Hikichi
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Andy Jackson
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Mark Jungerman
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Brian Kernighan
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Alexander Klaiber
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Jeffrey Law
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Marty Leisner
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Ulf Linde
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Roland H. Pesch
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K. Richard Pixley
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Ken Raeburn
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Dennis Ritchie
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Rob Ryan
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Peter Schauer
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Lynn D. Shumaker
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Richard Stallman
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Allan Steel
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Johanthan Stone
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Ian Lance Taylor
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Michael Tiemann
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Minh Tran-Le
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Martin Walker
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* New command line options
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david d `zoo' zuhn
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karl@hq.ileaf.com
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rhealey@ub.d.umn.edu.
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sato@sm.sony.co.jp.
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We now accept --silent as an alias for --quiet.
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* Mmalloc licensing
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The memory-mapped-malloc library is now licensed under the GNU Library
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General Public License.
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*** Changes in GDB-4.7:
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