gas/conf-a-gas.com

   1 $!
   2 $! This file sets things up to build gas on a openVMS/Alpha system to generate
   3 $! object files for a openVMS/Alpha system.
   4 $! We do not use the configure script, since there is no /bin/sh to execute it.
   5 $!
   6 $! If you are running this file, then obviously the host is alpha-dec-vms.
   7 $!
   8 $gas_host="vms"
   9 $!
  10 $cpu_type="alpha"
  11 $emulation="generic"
  12 $obj_format="evax"
  13 $atof="ieee"
  14 $!
  15 $       DELETE  = "delete/noConfirm"
  16 $       ECHO    = "write sys$output"
  17 $!
  18 $! Target specific information
  19 $call link targ-cpu.c   [.config]tc-'cpu_type'.c
  20 $call link targ-cpu.h   [.config]tc-'cpu_type'.h
  21 $call link targ-env.h   [.config]te-'emulation'.h
  22 $!
  23 $! Code to handle the object file format.
  24 $call link obj-format.h [.config]obj-'obj_format'.h
  25 $call link obj-format.c [.config]obj-'obj_format'.c
  26 $!
  27 $! Code to handle floating point.
  28 $call link atof-targ.c  [.config]atof-'atof'.c
  29 $!
  30 $!
  31 $! Create the file version.opt, which helps identify the executable.
  32 $!
  33 $if f$trnlnm("IFILE$").nes."" then  close/noLog ifile$
  34 $search Makefile.in "VERSION="/Exact/Output=config-gas-tmp.tmp
  35 $open ifile$ config-gas-tmp.tmp
  36 $read ifile$ line
  37 $close ifile$
  38 $DELETE config-gas-tmp.tmp;*
  39 $! Discard "VERSION=" and "\n" parts.
  40 $ijk=f$locate("=",line)+1
  41 $line=f$extract(ijk,f$length(line)-ijk,line)
  42 $! [what "\n" part??  this seems to be useless, but is benign]
  43 $ijk=f$locate("\n",line)
  44 $line=f$extract(0,ijk,line)
  45 $!
  46 $ if f$search("version.opt").nes."" then DELETE version.opt;*
  47 $copy _NL: version.opt
  48 $open/Append ifile$ version.opt
  49 $write ifile$ "identification="+""""+line+""""
  50 $close ifile$
  51 $!
  52 $! Now write config.h.
  53 $!
  54 $ if f$search("config.h").nes."" then DELETE config.h;*
  55 $copy _NL: config.h
  56 $open/Append ifile$ config.h
  57 $write ifile$ "/* config.h.  Generated by config-gas.com. */
  58 $write ifile$ "#ifndef GAS_VERSION"
  59 $write ifile$ "#define GAS_VERSION      """,line,""""
  60 $write ifile$ "#endif"
  61 $write ifile$ "/*--*/"
  62 $append [.config]vms-a-conf.h ifile$:
  63 $close ifile$
  64 $ECHO "Created config.h."
  65 $!
  66 $! Check for, and possibly make, header file <unistd.h>.
  67 $!
  68 $ if f$search("tmp-chk-h.*").nes."" then  DELETE tmp-chk-h.*;*
  69 $!can't use simple `#include HDR' with `gcc /Define="HDR=<foo.h>"'
  70 $!because the 2.6.[0-3] preprocessor handles it wrong (VMS-specific gcc bug)
  71 $ create tmp-chk-h.c
  72 int tmp_chk_h;  /* guarantee non-empty output */
  73 #ifdef HAVE_STDIO_H
  74 #include <stdio.h>
  75 #endif
  76 #ifdef HAVE_UNISTD_H
  77 #include <unistd.h>
  78 #endif
  79 #ifdef HAVE_UNIXIO_H
  80 #include <unixio.h>
  81 #endif
  82 #ifdef HAVE_UNIXLIB_H
  83 #include <unixlib.h>
  84 #endif
  85 $ on warning then  continue
  86 $ CHECK = "call tmp_chk_h"
  87 $ CHECK "HAVE_STDIO_H"
  88 $ if .not.$status
  89 $ then  type sys$input:
  90
  91 ? could not compile <stdio.h>.
  92   Since gcc is not set up correctly, gas configuration cannot proceed.
  93
  94 $       DELETE tmp-chk-h.c;*
  95 $       exit %x002C
  96 $ endif
  97 $!
  98 $ CHECK "HAVE_UNISTD_H"
  99 $ if .not.$status
 100 $ then
 101 $  if f$trnlnm("HFILE$").nes."" then  close/noLog hfile$
 102 $  CHECK "HAVE_UNIXIO_H"
 103 $  got_unixio = ($status .and. 1)
 104 $  CHECK "HAVE_UNIXLIB_H"
 105 $  got_unixlib = ($status .and. 1)
 106 $  create []unistd.h    !with rudimentary contents
 107 /* <unistd.h> substitute for building gas */
 108 #ifndef UNISTD_H
 109 #define UNISTD_H
 110
 111 $  open/Append hfile$ []unistd.h
 112 $  if got_unixio
 113 $  then  write hfile$ "#include <unixio.h>"
 114 $  else  append sys$input: hfile$:
 115 /* some of the routines normally prototyped in <unixio.h> */
 116 extern int creat(), open(), close(), read(), write();
 117 extern int access(), dup(), dup2(), fstat(), stat();
 118 extern long lseek();
 119 $  endif
 120 $  write hfile$ ""
 121 $  if got_unixlib
 122 $  then  write hfile$ "#include <unixlib.h>"
 123 $  else  append sys$input: hfile$:
 124 /* some of the routines normally prototyped in <unixlib.h> */
 125 extern char *sbrk(), *getcwd(), *cuserid();
 126 extern int brk(), chdir(), chmod(), chown(), mkdir();
 127 extern unsigned getuid(), umask();
 128 $  endif
 129 $  append sys$input: hfile$:
 130
 131 #endif /*UNISTD_H*/
 132 $  close hfile$
 133 $  ECHO "Created ""[]unistd.h""."
 134 $ endif !gcc '#include <unistd.h>' failed
 135 $ DELETE tmp-chk-h.c;*
 136 $
 137 $tmp_chk_h: subroutine
 138 $  set noOn
 139 $  hname = f$edit("<" + (p1 - "HAVE_" - "_H") + ".h>","LOWERCASE")
 140 $  write sys$output "Checking for ''hname'."
 141 $  if f$search("tmp-chk-h.obj").nes."" then  DELETE tmp-chk-h.obj;*
 142 $  define/noLog sys$error _NL:  !can't use /User_Mode here due to gcc
 143 $  define/noLog sys$output _NL: ! driver's use of multiple image activation
 144 $  gcc /Include=([],[-.include]) /Define=("''p1'") tmp-chk-h.c
 145 $!can't just check $status; gcc 2.6.[0-3] preprocessor doesn't set it correctly
 146 $  ok = (($status.and.1).and.(f$search("tmp-chk-h.obj").nes."")) .or. %x10000000
 147 $  deassign sys$error   !restore, more or less
 148 $  deassign sys$output
 149 $  if ok then  DELETE tmp-chk-h.obj;*
 150 $  exit ok
 151 $ endsubroutine !tmp_chk_h
 152 $
 153 $!
 154 $! Done
 155 $!
 156 $ if f$search("config.status") .nes. "" then DELETE config.status;*
 157 $ create config.status
 158 Links are now set up for use with an Alpha running openVMS.
 159 $ type config.status
 160 $exit
 161 $!
 162 $!
 163 $link:
 164 $subroutine
 165 $  if f$search(p1).nes."" then DELETE 'p1';*
 166 $  copy 'p2' 'p1'
 167 $  ECHO "Copied ''f$edit(p2,"LOWERCASE")' to ''f$edit(p1,"LOWERCASE")'."
 168 $endsubroutine