orders

GCC编译器源代码

     `charspace', `fontconvert', `gsrenderfont', `imageto', `imgrotate',
     `limn', & `xbfe'.

   * Fortran (`g77')   *Also *note Forthcoming GNUs::.*   (BinCD, SrcCD)

     GNU Fortran (`g77'), developed by Craig Burley, is available for public
     beta testing on the Internet.  For now, `g77' produces code that is
     mostly object-compatible with `f2c' & uses the same run-time library
     (`libf2c').

   * `gawk'   (SrcCD)   [FSFman]

     `gawk' is upwardly compatible with the latest POSIX specification of
     `awk'.  It also provides several useful extensions not found in other
     `awk' implementations.  Texinfo source for the `The GNU Awk User's
     Guide' comes with the software (*note Documentation::.).

   * `gcal'   (SrcCD)

     `gcal' is a program for printing calendars.  It displays different
     styled calendar sheets, eternal holiday lists, and fixed date warning
     lists.

   * GCC   (BinCD, SrcCD)   [FSFman]

     Version 2 of the GNU C Compiler supports the languages C, C++, and
     Objective-C; the source file name suffix or a compiler option selects
     the language.  (Also see "GNAT" later in this article for Ada language
     supports.) Objective-C support was donated by NeXT.  The runtime support
     needed to run Objective-C programs is now distributed with GCC.  (This
     does not include any Objective-C classes aside from `object', but see
     "GNUstep" in *Note Forthcoming GNUs::.) G++ seeks to be compliant with
     the ANSI C++ language standard.  See
     `http://www.cygnus.com/misc/wp/index.html' for the latest draft.

     GCC is a fairly portable optimizing compiler which performs many
     optimizations.  They include: automatic register allocation, common
     sub-expression elimination (CSE) (including a certain amount of CSE
     between basic blocks - though not all the supported machine descriptions
     provide for scheduling or delay slots), invariant code motion from
     loops, induction variable optimizations, constant propagation, copy
     propagation, delayed popping of function call arguments, tail recursion
     elimination, integration of inline functions & frame pointer elimination,
     instruction scheduling, loop unrolling, filling of delay slots, leaf
     function optimization, optimized multiplication by constants, the
     ability to assign attributes to instructions, & many local optimizations
     automatically deduced from the machine description.

     GCC can open-code most arithmetic on 64-bit values (type `long long
     int').  It supports extended floating point (type `long double') on the
     68k; other machines will follow.  GCC supports full ANSI C, traditional
     C, & GNU C extensions (including: nested functions support, nonlocal
     gotos, & taking the address of a label).

     GCC can generate a.out, COFF, ELF, & OSF-Rose files when used with a
     suitable assembler.  It can produce debugging information in these
     formats: BSD stabs, COFF, ECOFF, ECOFF with stabs, & DWARF.

     GCC generates code for many CPUs, including the a29k, Alpha, ARM, AT&T,
     DSP1610, Clipper, Convex cN, Elxsi, Fujitsu Gmicro, i370, i860, i960,
     MIL-STD-1750a, MIPS, ns32k, PDP-11, Pyramid, ROMP, RS/6000, SH, SPUR,
     Tahoe, VAX, & we32k.

     Position-independent code is generated for the Clipper, Hitachi H8/300,
     HP-PA (1.0 & 1.1), i386/i486/Pentium, m68k, m88k, SPARC, & SPARClite.

     Operating systems supported include: GNU/Hurd, GNU/Linux, ACIS, AIX, AOS,
     BSD, Clix, Concentrix, Ctix, DG/UX, Dynix, FreeBSD, Genix, HP-UX, Irix,
     ISC, Luna, LynxOS, Minix, NetBSD, NewsOS, NeXTStep, OS/2, OSF, OSF-Rose,
     RISCOS, SCO, Solaris 2, SunOS 4, System/370, SysV, Ultrix, Unos, VMS, &
     Windows/NT.

     Using the configuration scheme for GCC, building a cross-compiler is as
     easy as building a native compiler.

     Texinfo source for the `Using and Porting GNU CC' manual is included
     with GCC (*note Documentation::.).

   * GDB   (BinCD, SrcCD)   [FSFman, FSFrc]

     GDB, the GNU DeBugger, is a source-level debugger for C, C++, & Fortran.
     It provides partial support for Modula-2 & Chill.

     GDB can debug both C & C++, & will work with executables made by many
     different compilers; but, C++ debugging will have some limitations if
     you do not use GCC.

     GDB has a command line user interface, and Emacs has GDB mode as an
     interface.  Two X interfaces (not distributed or maintained by the FSF)
     are: `gdbtk' (FTP it from `ftp.cygnus.com' in directory `/pub/gdb'); and
     `xxgdb' (FTP it from `ftp.x.org' in directory `/contrib/utilities').

     Executable files and symbol tables are read via the BFD library, which
     allows a single copy of GDB to debug programs with multiple object file
     formats (e.g., a.out, COFF, ELF).  Other features include a rich command
     language, remote debugging over serial lines or TCP/IP, and watchpoints
     (breakpoints triggered when the value of an expression changes).

     GDB uses a standard remote interface to a simulator library which
     includes simulators for the ARM, Hitachi H8/300, Hitachi SH, & PowerPC.

     GDB can perform cross-debugging.  To say that GDB "targets" a platform
     means it can perform native or cross-debugging for it.  To say that GDB
     can "host" a given platform means that it can be built on it, but cannot
     necessarily debug native programs.

     GDB can:

        * "target" & "host": Amiga 3000 (AmigaOS, Amix, NetBSD), DEC Alpha
          (OSF/1), DECstation 3100 & 5000 (Ultrix), HP 9000/300 (BSD, HP-UX),
          HP 9000/700 (HP-UX 9, 10), i386/i486/Pentium (GNU/Hurd, GNU/Linux,
          BSD, FreeBSD, LynxOS, NetBSD, SCO, Windows NT), IBM RS/6000 (AIX
          3.x, AIX 4.x, LynxOS), Motorola Delta m88k (System V, CX/UX),
          Motorola m68k MVME-167 (LynxOS), NCR 3000 (SVR4), PC532 (NetBSD),
          PowerPC (AIX 4.x, MacOS, Windows NT), SGI (Irix V3, V4, V5), SONY
          News (NewsOS 3.x), SPARC (LynxOS, NetBSD, Solaris 2.x, & SunOS 4.1),
          & Sun-3 (SunOS 4.1).

        * "target", but not "host": AMD 29000, ARM (RDP), Fujitsu SPARClite,
          Hitachi H8/300, Hitachi SH (CMON, SH3, E7000), HP PA Pro (Winbond,
          Oki), i960 (MON960, Nindy, VxWorks), m68k/m68332 (CPU32BUG, EST,
          ROM68K, VxWorks), Matra Sparclet, MIPS (IDT, PMON, VxWorks),
          PowerPC (PPCBug), & Z8000.

        * "host", but not "target": HP/Apollo 68k (BSD), IBM RT/PC (AIX), &
          m68k Apple Macintosh (MacOS).  Sources for the manual,
     `Debugging with GDB', and a reference card are included (*note
     Documentation::.).

   * `gdbm'   (SrcCD)

     `gdbm' is the GNU replacement for the traditional `dbm' and `ndbm'
     libraries.  It implements a database using quick lookup by hashing.
     `gdbm' does not ordinarily make sparse files (unlike its Unix and BSD
     counterparts).

   * Generic NQS   (SrcCD)

     Generic NQS is a network queuing system for spreading batch jobs across a
     network of machines.  It is designed to be simple to install on a
     heterogeneous network of machines, and has optimizations for running on
     the high end, symmetric multiprocessing servers that are currently on the
     market.  It is available for many more Unix variants than any other
     comparable product, and inter-operates with other NQS systems, including
     Cray's NQE.

   * `geomview'   *See* `http://www.geom.umn.edu/software/geomview'   (SrcCD)

     `geomview' is an interactive geometry viewing program, for Unix systems
     with Motif, using X, GL, or OpenGL graphics.  It allows multiple
     independently controllable objects and cameras.  External programs may
     drive desired aspects of the viewer, e.g. loading changing geometry or
     controlling motion, while allowing interactive mouse-and-GUI control of
     everything else.  Controllable features include motion, appearance
     (wireframe, shading, lighting and material properties), mouse-based
     selection, snapshoting (PPM or SGI image, Postscript, and RenderMan
     formats), display in hyperbolic and spherical spaces, and projection
     from higher dimensions.  Includes converters to display Mathematica and
     Maple 3-D graphics, and limited conversion to/from VRML.

   * `gettext'   *Also *note Help the Translation Project::.*   (SrcCD)

     The GNU `gettext' tool set has everything maintainers need to
     internationalize a package's user messages.  Once a package has been
     internationalized, `gettext''s many tools help translators localize
     messages to their native language and automate handling the translation
     files.

   * `gforth'   (SrcCD)

     `gforth' is a fast, portable implementation of the ANS Forth language.

   * Ghostscript   (SrcCD)

     Ghostscript is an interpreter for the Postscript and PDF graphics
     languages.

     The current version of GNU Ghostscript, 3.53, includes a Postscript
     Level 2 interpreter and a PDF 1.1 interpreter (except for encryption).
     Significant new features include the ability to convert PDF to
     Postscript.

     Ghostscript executes commands in the Postscript and PDF languages by
     writing directly to a printer, drawing on an X window, or writing to
     files for printing later or manipulating with other graphics programs.

     Ghostscript includes a C-callable graphics library (for client programs
     that do not want to deal with the Postscript language).  It also runs on
     MS-DOS, MS Windows, OS/2, OpenVMS, and Mac OS (native on both 68K and
     PowerPC) (but please do *not* ask the FSF staff any questions about this;
     we do not use these operating systems).

   * Ghostview   (SrcCD)

     Tim Theisen, `[e-mail]', created Ghostview, a previewer for
     multi-page files with an X Window interface.  Ghostview & Ghostscript
     work together; Ghostview creates a viewing window & Ghostscript draws in
     it.

   * GIT   (SrcCD)

     The GNU Interactive Tools package includes: an extensible file system
     browser, an ASCII/hex file viewer, a process viewer/killer, & other
     related utilities & shell scripts.  It can be used to increase the speed
     & efficiency of many daily tasks, such as copying & moving files &
     directories, invoking editors, compressing/uncompressing files, creating
     & expanding archives, compiling programs, sending mail, etc.  It looks
     nice, has colors (if the standard ANSI color sequences are supported), &
     is user-friendly.

   * `gmp'   (SrcCD)

     GNU `mp' is a library for arithmetic on arbitrary precision integers,
     rational numbers, and floating-point numbers.  It has a rich set of
     functions with a regular interface.

     A major new release, version 2, came out in Spring '96.  Compared to
     previous versions, it is much faster, contains lots of new functions, &
     has support for arbitrary precision floating-point numbers.

   * GN   (SrcCD)

     GN is a gopher/HTTP server.

   * Gnans   (SrcCD)

     Gnans is a program (and language) for the numerical study of
     deterministic and stochastic dynamical systems.  The dynamical systems
     may evolve in continuous or discrete time.  Gnans has graphical &
     command line interfaces.

   * GNAT: The GNU Ada Translator   (SrcCD)

     GNAT, a front end for the entire Ada 95 language, including all special
     needs annexes, is available via anonymous FTP from `cs.nyu.edu' and
     various mirror sites in `/pub/gnat'.  SGI, DEC, and Siemens Nixdorf have
     chosen GNU Ada 95 as the Ada compiler for some of their systems.  GNAT
     is maintained by Ada Core Technologies.  For more information, see
     `http://www.gnat.com'.

   * GNATS   (SrcCD)

     GNATS, GNats: A Tracking System, is a bug-tracking system.  It is based
     upon the paradigm of a central site or organization which receives
     problem reports and negotiates their resolution by electronic mail.
     Although it has been used primarily as a software bug-tracking system so
     far, it is sufficiently generalized that it could be used for handling
     system administration issues, project management, or any number of other
     applications.

   * GnuGo   (SrcCD)

     GnuGo plays the game of Go.  It is not yet very sophisticated.

   * GNUMATH (`gnussl')   (SrcCD)

     GNUMATH is a library (`gnussl') that simplifies scientific programming
     in C & C++.  Its focus is on problems that can be solved by a
     straight-forward application of numerical linear algebra.  It also
     handles plotting.  It is in beta release; it is expected to grow more
     versatile & offer a wider scope in time.

   * `gnuplot'   (SrcCD)

     `gnuplot' is an interactive program for plotting mathematical
     expressions and data.  It plots both curves (2 dimensions) & surfaces (3
     dimensions).  It was neither written nor named for the GNU Project; the
     name is a coincidence.  Various GNU programs use `gnuplot'.

   * `gnuserv'   (SrcCD)

     `gnuserv' is an enhanced version of Emacs' `emacsclient' program.  It
     lets the user direct a running Emacs to edit files or evaluate arbitrary
     Emacs Lisp constructs from another process.

   * `gpc'   *Also *note GNUs Flashes::.*   (SrcCD)