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 $! Note: Only this script contains vax-vms and alpha-vms support, but vax-vms
   7 $! is no longer supported.
   8 $!
   9 $!
  10 $ gas_host="vms"
  11 $ arch_indx = 1 + ((f$getsyi("CPU").ge.128).and.1)      ! vax==1, alpha==2
  12 $ arch = f$element(arch_indx,"|","|VAX|Alpha|")
  13 $ if arch.eqs."VAX"
  14 $ then
  15 $  cpu_type="vax"
  16 $  obj_format="vms"
  17 $  atof="vax"
  18 $ else
  19 $  cpu_type="alpha"
  20 $  obj_format="evax"
  21 $  atof="ieee"
  22 $ endif
  23 $ emulation="generic"
  24 $!
  25 $       DELETE  = "delete/noConfirm"
  26 $       ECHO    = "write sys$output"
  27 $!
  28 $! Target specific information
  29 $ call make "targ-cpu.h" "[.config]tc-''cpu_type'.h"
  30 $ call make "targ-env.h" "[.config]te-''emulation'.h"
  31 $!
  32 $! Code to handle the object file format.
  33 $ call make "obj-format.h" "[.config]obj-''obj_format'.h"
  34 $!
  35 $! (not currently used for vax or alpha)
  36 $ call make "itbl-cpu.h" "[.config]itbl-''cpu_type'.h"
  37 $!
  38 $!
  39 $! Create the file version.opt, which helps identify the executable.
  40 $!
  41 $if f$trnlnm("IFILE$").nes."" then  close/noLog ifile$
  42 $search CONFIGURE.IN "AM_INIT_AUTOMAKE"/Exact/Output=config-gas-tmp.tmp
  43 $open ifile$ config-gas-tmp.tmp
  44 $read ifile$ line
  45 $close ifile$
  46 $DELETE config-gas-tmp.tmp;*
  47 $! Discard "AM_INIT_AUTOMAKE(gas, " and ")" parts.
  48 $ijk=f$locate(",",line)+2
  49 $line=f$extract(ijk,f$length(line)-ijk,line)
  50 $ijk=f$locate(")",line)
  51 $line=f$extract(0,ijk,line)
  52 $!
  53 $ if f$search("version.opt").nes."" then DELETE version.opt;*
  54 $copy _NL: version.opt
  55 $open/Append ifile$ version.opt
  56 $write ifile$ "identification="+""""+line+""""
  57 $close ifile$
  58 $!
  59 $! Now write config.h.
  60 $!
  61 $ if f$search("config.h").nes."" then DELETE config.h;*
  62 $copy _NL: config.h
  63 $open/Append ifile$ config.h
  64 $write ifile$ "/* config.h.  Generated by config-gas.com. */
  65 $write ifile$ "#ifndef VERSION"
  66 $write ifile$ "#define VERSION      """,line,""""
  67 $write ifile$ "#endif"
  68 $write ifile$ "/*--*/"
  69 $if arch .eqs. "VAX"
  70 $then
  71 $append [.config]vms-conf.h ifile$:
  72 $else
  73 $ append [.config]vms-a-conf.h ifile$:
  74 $endif
  75 $close ifile$
  76 $ECHO "Created config.h."
  77 $!
  78 $! Check for, and possibly make, header file <unistd.h>.
  79 $!
  80 $ if f$search("tmp-chk-h.*").nes."" then  DELETE tmp-chk-h.*;*
  81 $!can't use simple `#include HDR' with `gcc /Define="HDR=<foo.h>"'
  82 $!because the 2.6.[0-3] preprocessor handles it wrong (VMS-specific gcc bug)
  83 $ create tmp-chk-h.c
  84 int tmp_chk_h;  /* guarantee non-empty output */
  85 #ifdef HAVE_STDIO_H
  86 #include <stdio.h>
  87 #endif
  88 #ifdef HAVE_UNISTD_H
  89 #include <unistd.h>
  90 #endif
  91 #ifdef HAVE_UNIXIO_H
  92 #include <unixio.h>
  93 #endif
  94 #ifdef HAVE_UNIXLIB_H
  95 #include <unixlib.h>
  96 #endif
  97 $ on warning then  continue
  98 $ CHECK = "call tmp_chk_h"
  99 $ CHECK "HAVE_STDIO_H"
 100 $ if .not.$status
 101 $ then  type sys$input:
 102
 103 ? could not compile <stdio.h>.
 104
 105   If you're compiling with DEC C or VAX C, create config.status as an
 106   empty file and start gnu make again.
 107
 108   If you're compiling with GNU C, there is some setup problem and
 109   gas configuration cannot proceed.
 110
 111 $       DELETE tmp-chk-h.c;*
 112 $       exit %x002C
 113 $ endif
 114 $!
 115 $ CHECK "HAVE_UNISTD_H"
 116 $ if .not.$status
 117 $ then
 118 $  if f$trnlnm("HFILE$").nes."" then  close/noLog hfile$
 119 $  CHECK "HAVE_UNIXIO_H"
 120 $  got_unixio = ($status .and. 1)
 121 $  CHECK "HAVE_UNIXLIB_H"
 122 $  got_unixlib = ($status .and. 1)
 123 $  create []unistd.h    !with rudimentary contents
 124 /* <unistd.h> substitute for building gas */
 125 #ifndef UNISTD_H
 126 #define UNISTD_H
 127
 128 $  open/Append hfile$ []unistd.h
 129 $  if got_unixio
 130 $  then  write hfile$ "#include <unixio.h>"
 131 $  else  append sys$input: hfile$:
 132 /* some of the routines normally prototyped in <unixio.h> */
 133 extern int creat(), open(), close(), read(), write();
 134 extern int access(), dup(), dup2(), fstat(), stat();
 135 extern long lseek();
 136 $  endif
 137 $  write hfile$ ""
 138 $  if got_unixlib
 139 $  then  write hfile$ "#include <unixlib.h>"
 140 $  else  append sys$input: hfile$:
 141 /* some of the routines normally prototyped in <unixlib.h> */
 142 extern char *sbrk(), *getcwd(), *cuserid();
 143 extern int brk(), chdir(), chmod(), chown(), mkdir();
 144 extern unsigned getuid(), umask();
 145 $  endif
 146 $  append sys$input: hfile$:
 147
 148 #endif /*UNISTD_H*/
 149 $  close hfile$
 150 $  ECHO "Created ""[]unistd.h""."
 151 $ endif !gcc '#include <unistd.h>' failed
 152 $ DELETE tmp-chk-h.c;*
 153 $
 154 $tmp_chk_h: subroutine
 155 $  set noOn
 156 $  hname = f$edit("<" + (p1 - "HAVE_" - "_H") + ".h>","LOWERCASE")
 157 $  write sys$output "Checking for ''hname'."
 158 $  if f$search("tmp-chk-h.obj").nes."" then  DELETE tmp-chk-h.obj;*
 159 $  define/noLog sys$error _NL:  !can't use /User_Mode here due to gcc
 160 $  define/noLog sys$output _NL: ! driver's use of multiple image activation
 161 $  gcc /Include=([],[-.include]) /Define=("''p1'") tmp-chk-h.c
 162 $!can't just check $status; gcc 2.6.[0-3] preprocessor doesn't set it correctly
 163 $  ok = (($status.and.1).and.(f$search("tmp-chk-h.obj").nes."")) .or. %x10000000
 164 $  deassign sys$error   !restore, more or less
 165 $  deassign sys$output
 166 $  if ok then  DELETE tmp-chk-h.obj;*
 167 $  exit ok
 168 $ endsubroutine !tmp_chk_h
 169 $
 170 $!
 171 $! Done
 172 $!
 173 $ if f$search("config.status") .nes. "" then DELETE config.status;*
 174 $ open/write cfile []config.status
 175 $ write cfile "Links are now set up for use with a "+arch+" running VMS."
 176 $ close cfile
 177 $ type []config.status
 178 $exit
 179 $!
 180 $!
 181 $make: subroutine
 182 $  if f$search(p1).nes."" then DELETE 'p1';*
 183 $  create 'p1'
 184 $  if f$trnlnm("IFILE$").nes."" then  close/noLog ifile$
 185 $  open/Append ifile$ 'p1'
 186 $  write ifile$ "#include ""''f$string(p2 - "[.config]")'"""
 187 $  close ifile$
 188 $  ECHO "Created ''p1' for ''p2'."
 189 $endsubroutine !make