gas/config-gas.com

   1 $!config-gas.com
   2 $! This file sets things up to build gas on a VMS system to generate object
   3 $! files for a VMS system.  We do not use the configure script, since we
   4 $! do not have /bin/sh to execute it.
   5 $!
   6 $!
   7 $ gas_host="vms"
   8 $ arch_indx = 1 + ((f$getsyi("CPU").ge.128).and.1)      ! vax==1, alpha==2
   9 $ arch = f$element(arch_indx,"|","|VAX|Alpha|")
  10 $ if arch.eqs."VAX"
  11 $ then
  12 $  cpu_type="vax"
  13 $  obj_format="vms"
  14 $  atof="vax"
  15 $ else
  16 $  cpu_type="alpha"
  17 $  obj_format="evax"
  18 $  atof="ieee"
  19 $ endif
  20 $ emulation="generic"
  21 $!
  22 $       DELETE  = "delete/noConfirm"
  23 $       ECHO    = "write sys$output"
  24 $!
  25 $! Target specific information
  26 $ call make "targ-cpu.h" "[.config]tc-''cpu_type'.h"
  27 $ call make "targ-env.h" "[.config]te-''emulation'.h"
  28 $!
  29 $! Code to handle the object file format.
  30 $ call make "obj-format.h" "[.config]obj-''obj_format'.h"
  31 $!
  32 $! (not currently used for vax or alpha)
  33 $ call make "itbl-cpu.h" "[.config]itbl-''cpu_type'.h"
  34 $!
  35 $!
  36 $! Create the file version.opt, which helps identify the executable.
  37 $!
  38 $if f$trnlnm("IFILE$").nes."" then  close/noLog ifile$
  39 $search CONFIGURE.IN "AM_INIT_AUTOMAKE"/Exact/Output=config-gas-tmp.tmp
  40 $open ifile$ config-gas-tmp.tmp
  41 $read ifile$ line
  42 $close ifile$
  43 $DELETE config-gas-tmp.tmp;*
  44 $! Discard "AM_INIT_AUTOMAKE(gas, " and ")" parts.
  45 $ijk=f$locate(",",line)+2
  46 $line=f$extract(ijk,f$length(line)-ijk,line)
  47 $ijk=f$locate(")",line)
  48 $line=f$extract(0,ijk,line)
  49 $!
  50 $ if f$search("version.opt").nes."" then DELETE version.opt;*
  51 $copy _NL: version.opt
  52 $open/Append ifile$ version.opt
  53 $write ifile$ "identification="+""""+line+""""
  54 $close ifile$
  55 $!
  56 $! Now write config.h.
  57 $!
  58 $ if f$search("config.h").nes."" then DELETE config.h;*
  59 $copy _NL: config.h
  60 $open/Append ifile$ config.h
  61 $write ifile$ "/* config.h.  Generated by config-gas.com. */
  62 $write ifile$ "#ifndef VERSION"
  63 $write ifile$ "#define VERSION      """,line,""""
  64 $write ifile$ "#endif"
  65 $write ifile$ "/*--*/"
  66 $if arch .eqs. "VAX"
  67 $then
  68 $append [.config]vms-conf.h ifile$:
  69 $else
  70 $ append [.config]vms-a-conf.h ifile$:
  71 $endif
  72 $close ifile$
  73 $ECHO "Created config.h."
  74 $!
  75 $! Check for, and possibly make, header file <unistd.h>.
  76 $!
  77 $ if f$search("tmp-chk-h.*").nes."" then  DELETE tmp-chk-h.*;*
  78 $!can't use simple `#include HDR' with `gcc /Define="HDR=<foo.h>"'
  79 $!because the 2.6.[0-3] preprocessor handles it wrong (VMS-specific gcc bug)
  80 $ create tmp-chk-h.c
  81 int tmp_chk_h;  /* guarantee non-empty output */
  82 #ifdef HAVE_STDIO_H
  83 #include <stdio.h>
  84 #endif
  85 #ifdef HAVE_UNISTD_H
  86 #include <unistd.h>
  87 #endif
  88 #ifdef HAVE_UNIXIO_H
  89 #include <unixio.h>
  90 #endif
  91 #ifdef HAVE_UNIXLIB_H
  92 #include <unixlib.h>
  93 #endif
  94 $ on warning then  continue
  95 $ CHECK = "call tmp_chk_h"
  96 $ CHECK "HAVE_STDIO_H"
  97 $ if .not.$status
  98 $ then  type sys$input:
  99
 100 ? could not compile <stdio.h>.
 101
 102   If you're compiling with DEC C or VAX C, create config.status as an
 103   empty file and start gnu make again.
 104
 105   If you're compiling with GNU C, there is some setup problem and
 106   gas configuration cannot proceed.
 107
 108 $       DELETE tmp-chk-h.c;*
 109 $       exit %x002C
 110 $ endif
 111 $!
 112 $ CHECK "HAVE_UNISTD_H"
 113 $ if .not.$status
 114 $ then
 115 $  if f$trnlnm("HFILE$").nes."" then  close/noLog hfile$
 116 $  CHECK "HAVE_UNIXIO_H"
 117 $  got_unixio = ($status .and. 1)
 118 $  CHECK "HAVE_UNIXLIB_H"
 119 $  got_unixlib = ($status .and. 1)
 120 $  create []unistd.h    !with rudimentary contents
 121 /* <unistd.h> substitute for building gas */
 122 #ifndef UNISTD_H
 123 #define UNISTD_H
 124
 125 $  open/Append hfile$ []unistd.h
 126 $  if got_unixio
 127 $  then  write hfile$ "#include <unixio.h>"
 128 $  else  append sys$input: hfile$:
 129 /* some of the routines normally prototyped in <unixio.h> */
 130 extern int creat(), open(), close(), read(), write();
 131 extern int access(), dup(), dup2(), fstat(), stat();
 132 extern long lseek();
 133 $  endif
 134 $  write hfile$ ""
 135 $  if got_unixlib
 136 $  then  write hfile$ "#include <unixlib.h>"
 137 $  else  append sys$input: hfile$:
 138 /* some of the routines normally prototyped in <unixlib.h> */
 139 extern char *sbrk(), *getcwd(), *cuserid();
 140 extern int brk(), chdir(), chmod(), chown(), mkdir();
 141 extern unsigned getuid(), umask();
 142 $  endif
 143 $  append sys$input: hfile$:
 144
 145 #endif /*UNISTD_H*/
 146 $  close hfile$
 147 $  ECHO "Created ""[]unistd.h""."
 148 $ endif !gcc '#include <unistd.h>' failed
 149 $ DELETE tmp-chk-h.c;*
 150 $
 151 $tmp_chk_h: subroutine
 152 $  set noOn
 153 $  hname = f$edit("<" + (p1 - "HAVE_" - "_H") + ".h>","LOWERCASE")
 154 $  write sys$output "Checking for ''hname'."
 155 $  if f$search("tmp-chk-h.obj").nes."" then  DELETE tmp-chk-h.obj;*
 156 $  define/noLog sys$error _NL:  !can't use /User_Mode here due to gcc
 157 $  define/noLog sys$output _NL: ! driver's use of multiple image activation
 158 $  gcc /Include=([],[-.include]) /Define=("''p1'") tmp-chk-h.c
 159 $!can't just check $status; gcc 2.6.[0-3] preprocessor doesn't set it correctly
 160 $  ok = (($status.and.1).and.(f$search("tmp-chk-h.obj").nes."")) .or. %x10000000
 161 $  deassign sys$error   !restore, more or less
 162 $  deassign sys$output
 163 $  if ok then  DELETE tmp-chk-h.obj;*
 164 $  exit ok
 165 $ endsubroutine !tmp_chk_h
 166 $
 167 $!
 168 $! Done
 169 $!
 170 $ if f$search("config.status") .nes. "" then DELETE config.status;*
 171 $ open/write cfile []config.status
 172 $ write cfile "Links are now set up for use with a "+arch+" running VMS."
 173 $ close cfile
 174 $ type []config.status
 175 $exit
 176 $!
 177 $!
 178 $make: subroutine
 179 $  if f$search(p1).nes."" then DELETE 'p1';*
 180 $  create 'p1'
 181 $  if f$trnlnm("IFILE$").nes."" then  close/noLog ifile$
 182 $  open/Append ifile$ 'p1'
 183 $  write ifile$ "#include ""''f$string(p2 - "[.config]")'"""
 184 $  close ifile$
 185 $  ECHO "Created ''p1' for ''p2'."
 186 $endsubroutine !make