PC World Komputer 1996 February/PCWK0296.iso/sharewar/runtime/os2ext/emx/book/emxrt.inf

OS/2 Help File | 1995-06-06 | 34.9 KB | 984 lines

ΓòÉΓòÉΓòÉ 1. 1 Introduction to the User's Guide to the emx Runtime ΓòÉΓòÉΓòÉ

 User's Guide to the emx Runtime

    Copyright (c) 1990-1995 by Eberhard Mattes

 This is the documentation for the emx runtime package.  The emx runtime is an
 environment for 32-bit programs under OS/2 2.x, OS/2 3.x (OS/2, in short),
 MS-DOS, and PC-DOS (DOS, in short) on machines with a 386 CPU (or one of its
 successors).

  Hardware requirements
  Files included in the emx runtime package


ΓòÉΓòÉΓòÉ 1.1. 1.1 Hardware requirements ΓòÉΓòÉΓòÉ

 emx requires an 80386 CPU (80386DX, 80386SX, i486, or later)


ΓòÉΓòÉΓòÉ 1.2. 1.2 Files included in the emx runtime package ΓòÉΓòÉΓòÉ

 The emx runtime package includes the following files:

    \emx\bin\emx.exe              emx runtime for DOS
    \emx\bin\emxbind.exe          Tool for modifying emx programs (DOS and OS/2)
    \emx\bin\emxfpemu             Emulator for numeric coprocessor (DOS)
    \emx\bin\emxl.exe             emx loader (used by emxbind)
    \emx\bin\emxload.exe          Server for keeping OS/2 programs in memory
    \emx\bin\emxrev.cmd           Tool for displaying emx revisions (OS/2)
    \emx\bin\emxstack.exe         Tool for fixing the stack size of old programs
    \emx\book\emxrt.inf           The text you are looking at (VIEW version)
    \emx\dll\emx.dll              emx runtime for OS/2
    \emx\dll\emxio.dll            Hardware port I/O under OS/2
    \emx\dll\emxlibc.dll          Forwarder DLL to emxlibcm.dll (OS/2)
    \emx\dll\emxlibcm.dll         Multithread C library (OS/2)
    \emx\dll\emxlibcs.dll         Single-thread C library (OS/2)
    \emx\dll\emxwrap.dll          Interface to 16-bit OS/2 functions (OS/2)
    \emx\doc\emxrt.doc            The text you are looking at (text version)
    \emx\etc\termcap.dat          Terminal data base for termcap-based programs


ΓòÉΓòÉΓòÉ 2. 2 License ΓòÉΓòÉΓòÉ

 emx is free software; you can redistribute it and/or modify it under the terms
 of the GNU General Public License as published by the Free Software
 Foundation; either version 2, or (at your option) any later version.

 emx is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with
 emx; see the file COPYING.  If not, write to the Free Software Foundation, 675
 Mass Ave, Cambridge, MA 02139, USA.

 See \emx\doc\COPYING.EMX and \emx\doc\COPYING for details.

 Please note that source code for parts of the contents of emxrt.zip is
 contained in emxfix05.zip.


ΓòÉΓòÉΓòÉ 3. 3 Installing the emx runtime package under OS/2 ΓòÉΓòÉΓòÉ

  Summary for impatient OS/2 users
  Detailed instructions for OS/2 users


ΓòÉΓòÉΓòÉ 3.1. 3.1 Summary for impatient OS/2 users ΓòÉΓòÉΓòÉ

  1. Add \emx\dll to LIBPATH (always use the latest copy of the .dll files!)

  2. Add \emx\bin to PATH

  3. Reboot


ΓòÉΓòÉΓòÉ 3.2. 3.2 Detailed instructions for OS/2 users ΓòÉΓòÉΓòÉ

 emx does not work with OS/2 1.x and in DOS mode of OS/2.

 Before changing config.sys, make a backup copy of that file!

 The emx runtime is implemented as a set of dynamic link libraries under OS/2:

 emx.dll emx run-time support for OS/2

 emxio.dll access to hardware ports for emx programs under OS/2

 emxlibc.dll forwarder DLL to emxlibcm.dll for existing applications that use
         emxlibc.dll (which has been renamed to emxlibcm.dll)

 emxlibcm.dll multithread emx C library

 emxlibcs.dll single-thread emx C library

 emxwrap.dll 32-bit wrappers for 16-bit OS/2 API functions

 OS/2 looks for dynamic link libraries in the directories listed in the LIBPATH
 statement of your config.sys file.  Note that LIBPATH is not an environment
 variable!

 At any time, at most one version of a dynamic link library is loaded.  If
 there are different versions of a dynamic link library in the directories
 listed in the LIBPATH statement, the first one listed is loaded.  If you
 already have installed the emx dynamic link libraries, you should be careful
 to use the latest revision of those dynamic link libraries.  Newer emx dynamic
 link libraries work with older emx programs (however, you may have to apply
 emxstack), but newer emx programs don't work with older emx dynamic link
 libraries.  To find out about already installed emx dynamic link libraries,
 type

          cd \emx\bin
          emxrev

 If no emx dynamic link libraries are installed, no output is produced.  If
 there are emx dynamic link libraries installed, the names and revision numbers
 are displayed, for instance

          EMX : revision = 30
          EMXIO : revision = 30
          EMXLIBC : revision = 30
          EMXLIBCM : revision = 30
          EMXLIBCS : revision = 30
          EMXWRAP : revision = 30

 Only directories listed in the LIBPATH statement are searched.  To find out
 the revision numbers of the dynamic link libraries of this package, type

          emxrev -d c:\emx\dll

 if you have put the emx runtime package on drive C.  After running emxrev, you
 should quit the command processor by typing

          exit

 to release the dynamic link libraries (they have been loaded by cmd.exe as
 emxrev is a REXX procedure).  Otherwise, you cannot rename, overwrite, or
 delete those files.  This also happens if one of the emx dynamic link
 libraries is currently used by a program.  If you get error message SYS0032,
 use

          pstat /L

 to find out about the dynamic link libraries used by the programs currently
 running.  Terminate all the programs using emx.dll, emxio.dll, emxlibc.dll,
 emxlibcm.dll, emxlibcs.dll, or emxwrap.dll.  The command

          emxload -qw

 will unload programs kept in memory by emxload.exe.

 Either copy the latest revisions of the emx dynamic link libraries (that is,
 those with the highest revision numbers) to a directory directory listed in
 the LIBPATH statement of config.sys or modify the LIBPATH statement to include
 the directory where the latest revisions of the emx dynamic link libraries can
 be found.

 The directories of the LIBPATH statement are separated by semicolons.  To add
 c:\emx\dll to the LIBPATH statement, append a semicolon -- if there is not yet
 a semicolon -- to the end of the line of config.sys that starts with

          LIBPATH=

 Then, type the absolute name of the directory.  Example:

          LIBPATH=.;C:\OS2\DLL;C:\OS2\MDOS;C:\;C:\OS2\APPS\DLL;D:\EMX\DLL

 Optionally, you can append a semicolon at the end.

 Next, modify the line of config.sys starting with

          SET PATH=

 to include the \emx\bin directory.  For instance, change

          SET PATH=C:\OS2;C:\OS2\SYSTEM;C:\OS2\MDOS\WINOS2;C:\OS2\INSTALL;
          C:\;C:\OS2\MDOS;C:\OS2\APPS

 to

          SET PATH=C:\OS2;C:\OS2\SYSTEM;C:\OS2\MDOS\WINOS2;C:\OS2\INSTALL;
          C:\;C:\OS2\MDOS;C:\OS2\APPS;D:\EMX\BIN

 As with LIBPATH, you have to put a semicolon between the path names and a
 trailing semicolon is optional.  Note that the last two examples are shown in
 two lines; in config.sys, however, the complete SET statement must be put into
 one line.

 You might want to add \emx\book to the BOOKSHELF environment variable to
 simplify viewing the on-line documentation.  For instance, change the line

          SET BOOKSHELF=C:\OS2\BOOK;

 of your config.sys file to

          SET BOOKSHELF=C:\OS2\BOOK;C:\EMX\BOOK

 as with PATH, you have to put a semicolon between the path names and a
 trailing semicolon is optional.

 Now, you should reboot to activate the changes to config.sys.  After booting,
 run

          emxrev

 to verify that the latest revision of emx is now active.

 If OS/2 says

          SYS1804: The system cannot find the file EMX.

 when running an emx program, you have not correctly set the LIBPATH statement
 of config.sys.  See above for details.

 When running an old program (which assumes that emx.dll creates a stack object
 if the stack size is too small), you will get an error message like

          emx.dll: Stack size too small.  Run
            emxstack -f D:\BIN\PROGRAM.EXE
          and try again.

 Run emxstack as indicated by the error message to fix the stack size of the
 program.  If you can't (because you don't have write permission for the file),
 type

          set emxopt=-I

 to make emx.dll ignore the problem.  However, the program will probably crash
 due to insufficient stack size.  Using the -I option is not recommended!


ΓòÉΓòÉΓòÉ 4. 4 Installing the emx runtime package under DOS ΓòÉΓòÉΓòÉ

  Summary for impatient DOS users
  Detailed instructions for DOS users


ΓòÉΓòÉΓòÉ 4.1. 4.1 Summary for impatient DOS users ΓòÉΓòÉΓòÉ

  1. Add \emx\bin to PATH or set EMX to point to \emx\bin\emx.exe

  2. If you are using a memory manager which implements DPMI, enable VCPI

  3. Remove BREAK=ON from config.sys

  4. Reboot


ΓòÉΓòÉΓòÉ 4.2. 4.2 Detailed instructions for DOS users ΓòÉΓòÉΓòÉ

 emx programs for DOS come in two flavours: those which load emx.exe from a
 separate file and those which have the emx runtime emx.exe integrated in the
 executable file of the application program.

 Before changing autoexec.bat and config.sys, make a backup copy of these
 files!

 If you want to use a program which loads emx.exe, you have to put emx.exe into
 a directory which is listed in your PATH environment variable or you have to
 change the PATH environment variable (in autoexec.bat) to include the
 directory in which emx.exe can be found.  For instance, if your autoexec.bat
 file contains the line

          path c:\dos;d:\bin

 you have installed the emx runtime on drive D, you should modify that line to
 read

          path c:\dos;d:\bin;d:\emx\bin

 You have to put a semicolon between the path names.

 Alternatively, you can set an environment variable which directly points to
 the emx.exe executable.  If you use this method, your program can locate
 emx.exe more quickly.  If you have installed the emx runtime on drive D:, you
 should add the following line to your autoexec.bat file:

          set emx=d:\emx\bin\emx.exe

 Note that a directory name is not sufficient -- you have to type the complete
 path name of the emx.exe file.

 Programs of the second flavour, having emx.exe integrated, don't require
 \emx\bin added to the PATH environment variable or the EMX environment
 variable being set.  The program itself, however, may need changes to your
 autoexec.bat file.  See the documentation accompanying the program.  The
 following steps are required for both flavours of emx programs.

 If you are using a memory manager (such as QEMM or EMM386 or 386max) which
 implements DPMI (DOS Protected Mode Interface), you have to change the
 invokation of that memory manager to enable VCPI as emx does not support DPMI.
 See the documentation of your memory for details.  If your memory manager
 supports DPMI only (without VCPI), you have to remove or disable the memory
 manager.  Alternatively, you can use rsx, as indicated in section 6.3.  emx
 supports XMS and VCPI.

 Examine your config.sys file: If there is a line

          BREAK=ON

 in it, you should remove it as it causes trouble with emx and lots of other
 programs.

 If you are using an Intel Inboard 386/PC, add the following line to
 autoexec.bat:

          set emxopt=-m3

 If the swap file (used to swap memory pages to disk when running out of
 physical memory) should be in a specific directory or on a specific disk
 drive, set the EMXTMP environment variable in autoexec.bat.  Example:

          set emxtmp=c:\tmp

 Now, you should reboot to activate the changes to config.sys and autoexec.bat.


ΓòÉΓòÉΓòÉ 5. 5 Environment variables (OS/2 and DOS) ΓòÉΓòÉΓòÉ

 The operation of emx and emx programs is controlled by several environment
 variables.  You might have to set one or more of the following environment
 variables:

 INIT    used by termcap to find termcap.dat

 TERM    used by termcap to define the terminal type

 EMXETC  used by termcap to find termcap.dat

 EMXOPT  emx options (see below)

 EMXSHELL overrides the COMSPEC environment variable.  You can use this to run
         an alternate command processor (shell) from emx programs

 EMXPATH search path for programs (usually not relevant)

 PATH    search path for program (used if EMXPATH fails)

 TERMCAP used by termcap to find termcap.dat

  Environment variables (DOS)


ΓòÉΓòÉΓòÉ 5.1. 5.1 Environment variables (DOS) ΓòÉΓòÉΓòÉ

 EMX     path name of emx.exe, used by programs which are bound with emxl.exe
         (the emx loader) instead of emx.exe.  Set EMX to speed up loading of
         emx.exe or to load a specific version of emx.exe

 EMXTMP  directory for the swap file

 TMP     used if EMXTMP is not set


ΓòÉΓòÉΓòÉ 6. 6 DOS Notes ΓòÉΓòÉΓòÉ

  General notes
  Emergency exit
  Using rsx instead of emx


ΓòÉΓòÉΓòÉ 6.1. 6.1 General notes ΓòÉΓòÉΓòÉ

 o emx requires DOS 3.0 or later

 o emx does not support DPMI

 o emx does not support DESQview without VCPI (use QEMM-386 with DESQview)

 o If emx doesn't work under DESQview (especially if it displays the message

              Nonmaskable interrupt (NMI)

   either set the protection level to 0 or use the WATCHDOG=0 option of
   QEMM-386.

 o emx supports VCPI

 o emx supports XMS.  Do not use emx with himem.sys 2.06 or earlier.

 o emx checks for XMS version number 2.00 or later and for XMS driver revision
   2.06 or later, as older himem.sys drivers don't work correctly.  You can
   override this check by using the -O emx option (for drivers using a
   different revision numbering scheme), but emx may not work with your XMS
   driver, anyway.  Actually, emx has not been tested with himem.sys 2.05; 2.04
   fails, 2.06 works.

 o emx supports vdisk.sys 3.3 and later and most other RAM disk drivers

 o emx uses (or tries to use) all available memory, whether conventional,
   extended, or expanded memory.  If there isn't enough memory, emx will swap
   to disk.  The swap file will be created in the directory given by the EMXTMP
   environment variable.  If EMXTMP is not set, TMP will be used.  If both
   variables are not set, the swap file will be created in the root directory
   of the current drive.

 o If a program uses floating point instructions and no numeric coprocessor
   (387) is installed, emx tries to load the FPU (floating point unit) emulator
   emxfpemu.  That file is first sought in the directory from which emx.exe was
   loaded (this does not apply if emx.exe is bound to the executable), then in
   the current working directory and the directories listed in the EMXPATH and
   PATH environment variables.  If emxfpemu cannot be found, the program will
   be aborted by signal SIGFPE.


ΓòÉΓòÉΓòÉ 6.2. 6.2 Emergency exit ΓòÉΓòÉΓòÉ

 If the computer freezes while running emx, try hitting Ctrl-Break five times
 in one scond.  That will terminate emx (and all emx processes run by that
 instance of emx) unless it is blocked in a DOS call.  If blocked in a DOS
 call, emx will terminate after return from that DOS call.


ΓòÉΓòÉΓòÉ 6.3. 6.3 Using rsx instead of emx ΓòÉΓòÉΓòÉ

 rsx is a DPMI-compliant DOS extender which is more or less compatible to emx.
 Moreover, rsx contains a floating point emulator.  rsx is free software and
 has been written by Rainer Schnittker.  As of this writing, rsx is assumed to
 be available for anonymous ftp as

          ftp.uni-bielefeld.de: /pub/systems/msdos/misc/dpmigcc5.zip
          ftp.uni-stuttgart.de: /pub/systems/os2/emx-0.9a/contrib/dpmigcc5.zip
          ftp.informatik.tu-muenchen.de:
                                /pub/comp/os/os2/gnu/emx+gcc/contrib/dpmigcc5.zip

 If the emx loader emxl.exe finds a DPMI server but no VCPI server, it tries to
 run rsx.exe instead of emx.exe.  The RSX environment variable will be used
 instead of the EMX environment variable for locating rsx.exe.

 To load rsx.exe instead of emx.exe even if there is a DPMI server and a VCPI
 server (for instance if you need the floating point emulation of rsx), set the
 EMX environment variable to point to rsx.exe.  Note that rsx needs a DPMI
 server.


ΓòÉΓòÉΓòÉ 7. 7 emx options ΓòÉΓòÉΓòÉ

 You can customize emx by setting the EMXOPT environment variable.  This
 environment variable contains a list of options, similar to command line
 options.  The options must be separated by at least one blank.  Example:

          set emxopt=-c -h40

  emx options (OS/2)
  emx options (DOS)


ΓòÉΓòÉΓòÉ 7.1. 7.1 emx options (OS/2) ΓòÉΓòÉΓòÉ

 -c      Disable core dumps caused by signals and exceptions

 -h#     Set OS/2 file handle limit to #.  The number # must be between 10 and
         255

 -n      Suppress popups for exceptions.  As emx.dll displays an appropriate
         error message and dumps core, popups are not required

 -q      All command line arguments passed to child processes will be quoted
         unconditionally, that is, wildcard expansion and response files won't
         work in child processes of processes for which the -q option is in
         effect

 -r*     Prepend drive letter * to absolute path names.  If a path name starts
         with / but does not start with //, /dev/ or /pipe/, * followed by a
         colon will be prepended.  If -rd has been given, the file name
         \mydir\abc will be translated to d:\mydir\abc.  Note: this option can
         cause unexpected effects

 -t      Truncate file names to 8.3

 -x      Don't suppress wildcard expansion and response files if the `MKS Korn
         shell' method of passing command line arguments is used

 -E      Run debuggee in same session (window) as debugger

 -I      Don't complain about programs having too small a stack size.  Without
         the -I option, emx.dll displays an error message for those programs,
         telling how to run emxstack to fix the stack size.  With the -I
         option, the program is run despite of the problem.  However, the
         program will probably crash due to insufficient stack size.  Using the
         -I option is not recommended!

 -K      Don't use DosKillThread.  Due to bugs in OS/2, DosKillThread may cause
         problems.  emx.dll automatically avoids using DosKillThread for OS/2
         2.1 and older.  For OS/2 2.11 and later, you can use the -K option to
         disable usage of DosKillThread.  Currently, DosKillThread is used only
         if select() is applied to socket handles


ΓòÉΓòÉΓòÉ 7.2. 7.2 emx options (DOS) ΓòÉΓòÉΓòÉ

 -c      Disable core dumps caused by signals and exceptions

 -d      Don't use extended memory

 -e      Redirect the standard error handle (2) to standard output (1)

 -h#     Set DOS file handle limit to #.  The number # must be between 10 and
         255.  This option is ignored for DOS versions earlier than 3.30.  This
         option does not change the emx limit for the number of files per
         process -- that limit is always 40

 -m1     Running on Fujitsu FMR70 (not implemented yet)

 -m2     Running on NEC PC-98 (not implemented yet)

 -m3     Running on Intel Inboard 386/PC

 -o      Send the register dump of an exception to stdout.  Without -o, the
         register dump is sent to the CON device.  You need -o for redirecting
         the register dump to a file.

         emx now creates a core dump file (named `core') instead of a register
         dump.  Please keep that file in case the author of the program needs
         it for debugging.

 -q      All command line arguments passed to child processes will be quoted
         unconditionally, that is, wildcard expansion and response files won't
         work in child processes of processes for which the -q option is in
         effect

 -r*     Prepend drive letter * to absolute path names.  If a path name starts
         with / but does not start with //, /dev/ or /pipe/, * followed by a
         colon will be prepended.  If -rd has been given, the file name
         \mydir\abc will be translated to d:\mydir\abc.  Note: this option can
         cause unexpected effects

 -t      Truncate file names to 8.3 format.  Each part of a pathname is
         truncated to 8.3 format by taking the first 8 characters before the
         dot and the first 3 characters after the dot.  This is useful to
         compile programs on a FAT filesystem with minimal changes

 -E      Don't check for 387 coprocessor.  Assume no coprocessor is present

 -O      Override XMS version check.  By default, emx checks for XMS version
         number 2.00 or later and for XMS driver revision 2.06 or later, as
         older himem.sys drivers don't work correctly.  You can override this
         check by giving the -O option (for drivers using a different revision
         numbering scheme), but emx may not work with your XMS driver, anyway.
         Actually, emx has not been tested with himem.sys 2.05; 2.04 fails,
         2.06 works

 -V      Display emx version.  On program start, the emx version will be
         displayed

 -X      Disable usage of XMS memory.  Usage of XMS memory with VCPI is a new
         feature of emx.  If this happens to cause trouble, use the -X option.


ΓòÉΓòÉΓòÉ 8. 8 The emxstack tool ΓòÉΓòÉΓòÉ

 The emxstack tool is used for displaying and fixing the stack size.  Old
 programs assume that emx.dll allocates a stack object if the stack size is too
 small.  As emx.dll no longer does this, the stack size of the programs must be
 fixed.

     emxstack command [options] file...

 The following commands are available:

 -c

     Check whether the stack size should be fixed.  For each file, if the stack
     size is too small, a message will be displayed.  If the stack size is big
     enough, no message will be displayed.

 -d

     Display the stack size.  For each file, the stack size in KByte will be
     displayed.

 -f

     Fix the stack size.  For each file, the stack size is fixed if it is too
     small.

 -ssize

     Set the stack size.  For each file, the stack size is set to size KByte.

 -usize

     Update the stack size.  For each file, the stack size is set to size KByte
     if it less than size KByte.  If the stack size is not less than size
     KByte, the stack size won't be changed.

 The following options are available:

 -p

     Act on all files in the PATH.  The command is applied to each file in a
     directory listed in the PATH environment variable.  No file names must be
     given on the command line.

 -q

     Be quiet.  No messages will be displayed.  However, error messages won't
     be suppressed.

 -v

     Be verbose.  Display additional messages.

 Example:

          emxstack -f *.exe


ΓòÉΓòÉΓòÉ 9. 9 Troubleshooting ΓòÉΓòÉΓòÉ

 This section shows how to solve common problems involving the emx runtime.

  Warning message `WARNING: emx 0.9a or later required'
  unzip.exe says `cannot create emx/dll/emx.dll'
  emx.dll cannot be deleted, renamed or overwritten
  Error message `SYS1804: The system cannot find the file EMX.'
  Error message `rsx not found, DPMI not supported by emx'
  Error message `emx.dll: Stack size too small...'
  DOS message `Sector not found'


ΓòÉΓòÉΓòÉ 9.1. 9.1 Warning message `WARNING: emx 0.9a or later required' ΓòÉΓòÉΓòÉ

 If this message appears, an out-of-date version of emx.dll is active.  Make
 sure that the latest version of emx.dll is in a directory pointed to by the
 LIBPATH statement in your config.sys file.  Use

          emxrev -p c:\config.sys

 to list all emx dynamic link libraries reachable by the LIBPATH statement of
 c:\config.sys (use the drive letter of your boot drive instead of c:).  To
 simplify things, you should keep only one version of each DLL.  Older programs
 work with newer emx DLLs, but not vice versa.


ΓòÉΓòÉΓòÉ 9.2. 9.2 unzip.exe says `cannot create emx/dll/emx.dll' ΓòÉΓòÉΓòÉ

 This happens when you try to unpack emxrt.zip while a program is active which
 uses emx.dll.  Terminate all programs which use emx.dll and try again.  If you
 run emxrev, the command interpreter keeps emx.dll loaded until terminated.
 Therefore, you should close all OS/2 windows and full-screen sessions in which
 you have run emxrev.  All this also applies to emxlibcm.dll etc.


ΓòÉΓòÉΓòÉ 9.3. 9.3 emx.dll cannot be deleted, renamed or overwritten ΓòÉΓòÉΓòÉ

 See the previous problem.


ΓòÉΓòÉΓòÉ 9.4. 9.4 Error message `SYS1804: The system cannot find the file EMX.' ΓòÉΓòÉΓòÉ

 You have not correctly set the LIBPATH statement of config.sys, therefore
 emx.dll could not be found.


ΓòÉΓòÉΓòÉ 9.5. 9.5 Error message `rsx not found, DPMI not supported by emx' ΓòÉΓòÉΓòÉ

 The current version of emx cannot use DPMI.  Therefore, the loader tried to
 use rsx instead, but couldn't find rsx.  Remedy: install rsx or end the DPMI
 server (MS Windows).


ΓòÉΓòÉΓòÉ 9.6. 9.6 Error message `emx.dll: Stack size too small...' ΓòÉΓòÉΓòÉ

 You tried to run an old program (which assumes that emx.dll creates a stack
 object if the stack size is too small).

 Run emxstack as indicated by the error message to fix the stack size of the
 program.  If you can't (because you don't have write permission for the file),
 type

          set emxopt=-I

 to make emx.dll ignore the problem.  However, the program will probably crash
 due to insufficient stack size.  Using the -I option is not recommended!


ΓòÉΓòÉΓòÉ 9.7. 9.7 DOS message `Sector not found' ΓòÉΓòÉΓòÉ

 DOS seems to display that message if a file is opened twice (perhaps one
 handle for reading, one for writing).  For instance, this happens when GCC
 runs out of temporary files.  Look for files named like cca00002, ccz00002
 etc. (the digits may vary) in your temporary directory and delete them.


ΓòÉΓòÉΓòÉ 10. 10 emx messages ΓòÉΓòÉΓòÉ

  emx messages (OS/2)
  emx messages (DOS)


ΓòÉΓòÉΓòÉ 10.1. 10.1 emx messages (OS/2) ΓòÉΓòÉΓòÉ

 core dumped

     The program cannot continue due to a fatal error (exception).  An image of
     the program's memory has been written to a file named `core'.  Please keep
     that file in case the author of the program needs it for debugging.

 emx.dll: Stack size too small...

     You tried to run an old program (which assumes that emx.dll creates a
     stack object if the stack size is too small).  You should run emxstack to
     fix the stack size.

 Invalid option in EMXOPT

     An option in the EMXOPT environement variable is not understood by emx.

 Invalid syscall function code

     The program run by emx has called an invalid system function.  Most
     likely, you're using an emx.dll which is out of date.

 WARNING: emx 0.9a or later required

     The program requires emx.dll 0.9a or later.  However, an older version of
     emx.dll is active.  Make sure that the latest version of emx.dll is in a
     directory pointed to by the LIBPATH statement in your config.sys file.
     Use

                  emxrev -p c:\config.sys

     to list all emx dynamic link libraries reachable by the LIBPATH statement
     of c:\config.sys (use the drive letter of your boot drive instead of c:).
     To simplify things, you should keep only one version of each DLL.  Older
     programs work with newer emx DLLs, but not vice versa.


ΓòÉΓòÉΓòÉ 10.2. 10.2 emx messages (DOS) ΓòÉΓòÉΓòÉ

 Abnormal program termination

     The program received the SIGABRT signal.  The abort() function was called
     or SIGABRT was raised.

 Bad environment

     The program name could not be found in the environment segment or the
     environment segment is longer than 32768 bytes.  This should not happen in
     practice.

 Cannot create swap file

     The swap file could not be created.  Remedy: make sure the swap file can
     be created in the directory given by the EMXTMP (or TMP) environment
     variable.  If EMXTMP and TMP are not set, emx will create the swap file in
     the root directory of the current drive.

 Cannot enable A20

     emx tried to enable address line A20 and failed.  Remedy: contact the
     author.

 Cannot enable A20 via XMS

     emx tried to enable address line A20 by calling the XMS driver.
     Unfortunately, A20 couldn't be enabled.  Remedy: unknown.

 Cannot open program file

     The program file given on the emx command line could not be found or
     opened.  Remedy: type the correct file name.  (This should not happen with
     bound programs.)

 Cannot read program file

     An error occured while reading the program file.  Remedy: make sure the
     program file given on the emx command line is valid (this does not apply
     to bound programs).  Maybe some other program accesses that file.

 core dumped

     The program cannot continue due to a fatal error (exception).  An image of
     the program's memory has been written to a file named `core'.  Please keep
     that file in case the author of the program needs it for debugging.

 DPMI not supported

     The current version of emx cannot use DPMI.  Maybe some future version
     will do.  Remedy: end the DPMI server (MS Windows) or use rsx.

 emx not found

     The emx loader (emxl.exe) failed to find emx.exe.  Make sure that emx.exe
     is in a directory listed in the PATH environment variable.  Alternatively,
     you can set the EMX environment variable to the complete path name of
     emx.exe.

 Exception ...

     The program run by emx tried to do something which is considered illegal
     by the processor or by emx.  Remedy: report to the supplier of the
     program.

 Illegal moucall function

     The program run by emx has called an invalid system function.  Remedy:
     report to the supplier of the program.

 Illegal syscall function

     The program run by emx has called an invalid system function.  Remedy:
     report to the supplier of the program.

 Illegal viocall function

     The program run by emx has called an invalid system function.  Remedy:
     report to the supplier of the program.

 Invalid arguments for DOS function xx

     The program run by emx has used invalid arguments for a system function.
     Remedy: report to the supplier of the program.

 Invalid emx option

     An option in EMXOPT or set by emxbind is not understood by emx.  Remedy:
     check EMXOPT.  Use emxbind -i to display the options set by emxbind.

 Invalid program file

     The program file given on the emx command line (or bound to emx) is
     corrupt.  Remedy: reload the program from diskette.  If this doesn't help
     you should contact the supplier of the program.

 Invalid special function code: xx

     The program run by emx has called an invalid system function.  Remedy:
     report to the supplier of the program.

 Linear address space exhausted

     The program run by emx uses far too much memory.  Remedy: complain to the
     author.

 Nonmaskable interrupt (NMI) at xxxx:yyyyyyyy

     A nonmaskable interrupt occured.  Maybe this is due to a memory error.
     Remedy: if you are using DESQview, either set the protection level to 0 or
     use the WATCHDOG=0 option of QEMM-386.  Otherwise, run a program for
     testing memory.

 Out of memory

     There isn't enough memory for running emx.  Remedy: remove some drivers
     and/or resident programs.  Or add memory to your machine.

 Out of stacks

     emx ran out of local stacks.  Remedy: complain to the author.

 Out of memory or swap space

     emx cannot write to the swap file because the disk is full.  Remedy: make
     sure there is enough space on the drive used for the swap file.  Use the
     EMXTMP (or TMP) environment variable to tell emx where to create the swap
     file.  If neither EMXTMP nor TMP is set, emx will create the swap file in
     the root directory of the current drive.

 Out of swap space

     emx cannot write to the swap file because the disk is full.  Remedy: make
     sure there is enough space on the drive used for the swap file.  Use the
     EMXTMP (or TMP) environment variable to tell emx where to create the swap
     file.  If neither EMXTMP nor TMP is set, emx will create the swap file in
     the root directory of the current drive.

 Process terminated by SIGINT

     You have stopped the program by hitting Ctrl-C or Ctrl-Break.

 Process terminated by SIG...

     The program has been stopped due to a signal or exception.  Usually, this
     indicates a fatal error in the program.

 Program aborted

     You have aborted the program by answering `Abort' after a critical error
     had occured.

 rsx not found, DPMI not supported by emx

     The current version of emx cannot use DPMI.  Therefore, the loader tried
     to use rsx instead, but couldn't find rsx.  Remedy: install rsx or end the
     DPMI server (MS Windows).

 Swap file I/O error

     emx couldn't read or write the swap file.

 This program does not run in DOS mode of OS/2

     DOS emulation of OS/2 doesn't support emx.  Remedy: boot DOS or run the
     program in a OS/2 window

 This program requires an 80386 CPU

     You need an 80386DX, 80386SX, i486 or later CPU for running emx.  Remedy:
     get another computer.

 This program requires DOS 3.0 or later

     If emx is bound with an application program into one executable, DOS 3.0
     or later is required for execution.

 Too many processes

     emx supports up to 4 processes.  You tried to start 5 or more processes.

 Unexpected interrupt

     This cannot happen.  Remedy: report to the author.

 Unsupported VDISK.SYS version

     emx doesn't support the vdisk.sys device driver you are using.  Remedy:
     remove VDISK.SYS or use a different version.  emx should work with
     vdisk.sys 3.3 or later.

 Unsupported XMS version

     emx requires himem.sys 2.06 or later (older versions are too buggy).
     Remedy: get a newer himem.sys.  If you are not using himem.sys, use the -O
     option of emx and tell the author whether this works or not.

 Unusable interrupt vector mappings set by VCPI server

     The configuration of the VCPI server (EMS driver) is illegal.  Remedy:
     read the manual of the EMS driver.

 Use emxbind

     You tried to run emxl.exe, which doesn't make sense.  emxl.exe is designed
     to be bound into an executable file by emxbind.

 Virtual mode not supported without VCPI

     A VCPI server is required to run emx if the CPU is in virtual mode.  You
     will get this message if you're using an EMS driver (EMS emulator) which
     doesn't support VCPI or if you have disabled EMS.  Remedy: remove the EMS
     driver, use an EMS driver which supports VCPI or enable EMS if it has been
     disabled (for instance, remove the NOEMS keyword from the command line of
     the EMS driver).

 Wrong emx version

     The version of emx.exe does not match the version the program was compiled
     for.  Remedy: use the copy of emx.exe that comes with the program.  If you
     are using different programs which need different versions of emx.exe, use
     the EMX environment variable to set the path name of the correct version
     of emx.exe before running a program which requires a version different
     from the default emx.exe.  You can also use emxbind -u to put the correct
     version of emx.exe into the executable files.


ΓòÉΓòÉΓòÉ 11. 11 Obtaining the complete emx package ΓòÉΓòÉΓòÉ

 emx is available for anonymous ftp on

          ftp.uni-stuttgart.de [129.69.18.15]: /pub/systems/os2/emx-0.9a
          ftp-os2.cdrom.com:   [192.153.46.2]: /os2/32bit/unix/emx09a
          src.doc.ic.ac.uk      [146.169.2.1]: /pub/packages/os2/32bit/unix/emx09a
          ftp.informatik.tu-muenchen.de [131.159.0.198]:
                                               /pub/comp/os/os2/gnu/emx+gcc


ΓòÉΓòÉΓòÉ 12. 12 The author of emx ΓòÉΓòÉΓòÉ

 The author of emx is

     Eberhard Mattes
     Teckstraсe 81
     D-71696 MФglingen
     Germany

 Internet: [e-mail]  (subject to change)

 No telephone calls please!  It must be stressed that the author does not reply
 to letters if you don't include return postage (international postal reply
 coupon if you are outside Germany) and a self-addressed