Re: i370 port - constructing compile script

["Paul Edwards" <mutazilah@gmail.com>]

I've been having fantastic success building gcc.  I have got it
to iterate through the entire build (as far as I can tell) now.

> Then finally I ran into an internal compiler error which I haven't seen
> before.  One of the gcc options must have triggered something off.
> Perhaps it was -Wwrite-strings, or maybe the -O2 (I normally use
> -Os for a completely unrelated reason).  Either way, I need to find
> out how to switch off those flags.  I'll also try to fix the compiler
> internal error in i370.md.

This problem was due to the build being done with 64-bit
long long enabled - something i370.md can't cope with.

I forced it off with these two things:

configure:
  main ()
  {
! long long int i;
    ;
    return 0;
  }
--- 3196,3202 ----
  int
  main ()
  {
! zlong long int i;


hwint.h:
  #if !defined HAVE_LONG_LONG
! # if GCC_VERSION >= 3000 && !PUREISO && defined(WANT64)
  #  define HAVE_LONG_LONG 1
  #  define SIZEOF_LONG_LONG 8


Now at the end of the build, I can save the output, and do a
grep "^i370-mvspdp-gcc" to get all the source files that need to be
compiled.  I could attempt to use the .o files (that are really .s)
directly, but that's not something I really need.

The auto-host.h looks fine, plus I have the generated files.

I still need to clean up the scripts further (the below is a work in
progress), and I need to write the programs that will generate the
compile JCL and then try it out!

Part of the cleanup will hopefully get around the multiple make failures ...

+ make
+ cp gcc/config/i370/dummy_config.h gcc/config.h
+ make
+ cp gcc/config/i370/i370-mvspdp-gcc2 ../mvscross/bin/i370-mvspdp-gcc
+ make

:-)

BFN.  Paul.


Index: gccnew/gcc/configure
diff -c gccnew/gcc/configure:1.1.1.1 gccnew/gcc/configure:1.12
*** gccnew/gcc/configure:1.1.1.1 Thu Jul  9 10:25:05 2009
--- gccnew/gcc/configure Fri Oct 30 12:34:44 2009
***************
*** 2463,2470 ****
--- 2463,2472 ----
  /* end confdefs.h.  */
  #include <stdarg.h>
  #include <stdio.h>
+ #if !defined(__MVS__)
  #include <sys/types.h>
  #include <sys/stat.h>
+ #endif
  /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
  struct buf { int x; };
  FILE * (*rcsopen) (struct buf *, struct stat *, int);
***************
*** 3194,3200 ****
  int
  main ()
  {
! long long int i;
    ;
    return 0;
  }
--- 3196,3202 ----
  int
  main ()
  {
! zlong long int i;
    ;
    return 0;
  }
***************
*** 3377,3383 ****
--- 3379,3387 ----
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
  #include "confdefs.h"
+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif


  int
***************
*** 3448,3454 ****
--- 3452,3460 ----
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
  #include "confdefs.h"
+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif


  int
***************
*** 3519,3525 ****
--- 3525,3533 ----
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
  #include "confdefs.h"
+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif


  int
***************
*** 3590,3596 ****
--- 3598,3606 ----
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
  #include "confdefs.h"
+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif


  int
***************
*** 3662,3668 ****
--- 3672,3680 ----
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
  #include "confdefs.h"
+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif


  int
***************
*** 3735,3741 ****
--- 3747,3755 ----
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
  #include "confdefs.h"
+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif


  int
***************
*** 5656,5662 ****
--- 5670,5678 ----
  if test $ac_cv_header_time = yes; then

  cat >>confdefs.h <<\_ACEOF
+ #if !defined(__MVS__)
  #define TIME_WITH_SYS_TIME 1
+ #endif
  _ACEOF

  fi
***************
*** 6150,6157 ****
--- 6166,6180 ----
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
+ #if !defined(__MVS__)
  #include <sys/types.h>
  #include <sys/param.h>
+ #endif
+ #if defined(__MVS__)
+ #define BIG_ENDIAN 1
+ #define LITTLE_ENDIAN 2
+ #define BYTE_ORDER 1
+ #endif
  int
  main ()
  {
***************
*** 6192,6199 ****
--- 6215,6229 ----
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
+ #if !defined(__MVS__)
  #include <sys/types.h>
  #include <sys/param.h>
+ #endif
+ #if defined(__MVS__)
+ #define BIG_ENDIAN 1
+ #define LITTLE_ENDIAN 2
+ #define BYTE_ORDER 1
+ #endif
  int
  main ()
  {
***************
*** 6731,6738 ****
--- 6761,6770 ----
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
+ #if !defined(__MVS__)
  #include <sys/types.h>
  #include <inttypes.h>
+ #endif
  int
  main ()
  {
***************
*** 6851,6857 ****
--- 6883,6891 ----
  #endif
  /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+ #if !defined(__MVS__)
  char $ac_func ();
+ #endif
  /* The GNU C library defines this for functions which it implements
      to always fail with ENOSYS.  Some functions are actually named
      something starting with __ and the normal name is an alias.  */
***************
*** 7051,7057 ****
--- 7085,7093 ----
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif

  _ACEOF
  if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
***************
*** 7093,7099 ****
--- 7129,7137 ----
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
  /* Thanks to Mike Rendell for this test.  */
+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif
  #define NGID 256
  #undef MAX
  #define MAX(x, y) ((x) > (y) ? (x) : (y))
***************
*** 7303,7311 ****
--- 7341,7351 ----
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
+ #if !defined(__MVS__)
  #include <sys/types.h>
  #include <sys/mman.h>
  #include <unistd.h>
+ #endif

  #ifndef MAP_ANONYMOUS
  #define MAP_ANONYMOUS MAP_ANON
***************
*** 7570,7576 ****
--- 7610,7618 ----
  #endif
  /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+ #if !defined(__MVS__)
  char $ac_func ();
+ #endif
  /* The GNU C library defines this for functions which it implements
      to always fail with ENOSYS.  Some functions are actually named
      something starting with __ and the normal name is an alias.  */
***************
*** 7644,7650 ****
--- 7686,7694 ----
  else
    cat >conftest.$ac_ext <<_ACEOF
  /* By Ruediger Kuhlmann. */
+       #if !defined(__MVS__)
        #include <sys/types.h>
+       #endif
        #if HAVE_UNISTD_H
        # include <unistd.h>
        #endif
***************
*** 7717,7725 ****
--- 7761,7771 ----
  /* Thanks to Paul Eggert for this test.  */
  #include <stdio.h>
  #include <stdlib.h>
+ #if !defined(__MVS__)
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <sys/wait.h>
+ #endif
  #if HAVE_UNISTD_H
  # include <unistd.h>
  #endif
***************
*** 8998,9004 ****
--- 9044,9052 ----
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */

+ #if !defined(__MVS__)
  #include <sys/types.h>
+ #endif
  #ifdef HAVE_SYS_STAT_H
  # include <sys/stat.h>
  #endif
Index: gccnew/gcc/hwint.h
diff -c gccnew/gcc/hwint.h:1.1.1.2 gccnew/gcc/hwint.h:1.3
*** gccnew/gcc/hwint.h:1.1.1.2 Thu Jul  9 10:27:21 2009
--- gccnew/gcc/hwint.h Mon Nov  2 20:50:44 2009
***************
*** 22,28 ****
     but they're all cross-compile-only.)  Just in case, force a
     constraint violation if that assumption is incorrect.  */
  #if !defined HAVE_LONG_LONG
! # if GCC_VERSION >= 3000 && !PUREISO
  #  define HAVE_LONG_LONG 1
  #  define SIZEOF_LONG_LONG 8
  extern char sizeof_long_long_must_be_8[sizeof(long long) == 8 ? 1 : -1];
--- 22,28 ----
     but they're all cross-compile-only.)  Just in case, force a
     constraint violation if that assumption is incorrect.  */
  #if !defined HAVE_LONG_LONG
! # if GCC_VERSION >= 3000 && !PUREISO && defined(WANT64)
  #  define HAVE_LONG_LONG 1
  #  define SIZEOF_LONG_LONG 8
  extern char sizeof_long_long_must_be_8[sizeof(long long) == 8 ? 1 : -1];
Index: gccnew/gcc/config/i370/build1
diff -c /dev/null gccnew/gcc/config/i370/build1:1.2
*** /dev/null Tue Nov  3 00:56:29 2009
--- gccnew/gcc/config/i370/build1 Tue Nov  3 00:43:52 2009
***************
*** 0 ****
--- 1,6 ----
+ 
./configure --target=i370-mvspdp --prefix=/devel/mvscross --with-sysroot=/devel/mvshead 
 --enable-languages=c
+ make
+ make install
+ mv ../mvscross/bin/i370-mvspdp-gcc ../mvscross/bin/i370-mvspdp-xxx
+ cp gcc/config/i370/i370-mvspdp-gcc1 ../mvscross/bin/i370-mvspdp-gcc
+ cp gcc/config/i370/i370-mvspdp-ar ../mvscross/bin
Index: gccnew/gcc/config/i370/build2
diff -c /dev/null gccnew/gcc/config/i370/build2:1.2
*** /dev/null Tue Nov  3 00:56:29 2009
--- gccnew/gcc/config/i370/build2 Mon Nov  2 23:11:38 2009
***************
*** 0 ****
--- 1,7 ----
+ 
./configure --build=i686-linux --host=i370-mvspdp --target=i370-mvspdp --prefix=/devel/mvshost 
 --enable-languages=c --disable-nls
+
+ make
+ cp gcc/config/i370/dummy_config.h gcc/config.h
+ make
+ cp gcc/config/i370/i370-mvspdp-gcc2 ../mvscross/bin/i370-mvspdp-gcc
+ make
Index: gccnew/gcc/config/i370/dummy_config.h
diff -c /dev/null gccnew/gcc/config/i370/dummy_config.h:1.1
*** /dev/null Tue Nov  3 00:56:29 2009
--- gccnew/gcc/config/i370/dummy_config.h Mon Nov  2 23:11:29 2009
***************
*** 0 ****
--- 1,12 ----
+ #ifndef GCC_CONFIG_H
+ #define GCC_CONFIG_H
+ #ifndef POSIX
+ # define POSIX
+ #endif
+ #include "unixio.h"
+ #include "config/i370/mvspdp.h"
+ #include "auto-host.h"
+ #ifdef IN_GCC
+ # include "ansidecl.h"
+ #endif
+ #endif /* GCC_CONFIG_H */
Index: gccnew/gcc/config/i370/i370-mvspdp-ar
diff -c /dev/null gccnew/gcc/config/i370/i370-mvspdp-ar:1.1
*** /dev/null Tue Nov  3 00:56:29 2009
--- gccnew/gcc/config/i370/i370-mvspdp-ar Tue Nov  3 00:42:23 2009
***************
*** 0 ****
--- 1,2 ----
+ echo ar $*
+ touch $2
Index: gccnew/gcc/config/i370/i370-mvspdp-gcc1
diff -c /dev/null gccnew/gcc/config/i370/i370-mvspdp-gcc1:1.1
*** /dev/null Tue Nov  3 00:56:29 2009
--- gccnew/gcc/config/i370/i370-mvspdp-gcc1 Mon Nov  2 23:08:46 2009
***************
*** 0 ****
--- 1,2 ----
+ i370-mvspdp-xxx -Werror-implicit-function-declaration -DPUREISO -S -I 
/devel/mvshead/usr/include $*
+ #i370-mvspdp-xxx -DPUREISO -S -I /devel/mvshead/usr/include $*
Index: gccnew/gcc/config/i370/i370-mvspdp-gcc2
diff -c /dev/null gccnew/gcc/config/i370/i370-mvspdp-gcc2:1.1
*** /dev/null Tue Nov  3 00:56:29 2009
--- gccnew/gcc/config/i370/i370-mvspdp-gcc2 Mon Nov  2 23:08:46 2009
***************
*** 0 ****
--- 1,2 ----
+ #i370-mvspdp-xxx -Werror-implicit-function-declaration -DPUREISO -S -I 
/devel/mvshead/usr/include $*
+ i370-mvspdp-xxx -DPUREISO -S -I /devel/mvshead/usr/include $*
Index: gccnew/gcc/config/i370/masterbuild
diff -c /dev/null gccnew/gcc/config/i370/masterbuild:1.1
*** /dev/null Tue Nov  3 00:56:29 2009
--- gccnew/gcc/config/i370/masterbuild Mon Nov  2 23:13:48 2009
***************
*** 0 ****
--- 1,11 ----
+ rm -fr gccnew
+ cvs get gccnew
+ cd gccnew
+ gcc/config/i370/build1
+ cd ..
+
+ rm -fr gccnew
+ cvs get gccnew
+ cd gccnew
+ gcc/config/i370/build2
+ cd ..
Index: gccnew/libiberty/configure
diff -c gccnew/libiberty/configure:1.1.1.1 gccnew/libiberty/configure:1.16
*** gccnew/libiberty/configure:1.1.1.1 Thu Jul  9 10:25:05 2009
--- gccnew/libiberty/configure Sat Oct 24 10:00:20 2009
***************
*** 274,279 ****
--- 274,284 ----
  # Factoring default headers for most tests.
  ac_includes_default="\
  #include <stdio.h>
+ #include <stdlib.h>
+ #include <time.h>
+ #include <string.h>
+ #include <signal.h>
+ #include <stdarg.h>
  #if HAVE_SYS_TYPES_H
  # include <sys/types.h>
  #endif
***************
*** 3110,3117 ****
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
! #include <sys/types.h>
! #include <sys/param.h>
  int
  main ()
  {
--- 3115,3125 ----
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
! /*#include <sys/types.h>
! #include <sys/param.h>*/
! #define BIG_ENDIAN 1
! #define LITTLE_ENDIAN 2
! #define BYTE_ORDER 1
  int
  main ()
  {
***************
*** 3143,3150 ****
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
! #include <sys/types.h>
! #include <sys/param.h>
  int
  main ()
  {
--- 3151,3161 ----
  cat confdefs.h >>conftest.$ac_ext
  cat >>conftest.$ac_ext <<_ACEOF
  /* end confdefs.h.  */
! /*#include <sys/types.h>
! #include <sys/param.h>*/
! #define BIG_ENDIAN 1
! #define LITTLE_ENDIAN 2
! #define BYTE_ORDER 1
  int
  main ()
  {
***************
*** 4163,4169 ****
--- 4174,4189 ----
  #endif
  /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+ #if !defined(__MVS__)
  char $ac_func ();
+ #else
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <time.h>
+ #include <string.h>
+ #include <signal.h>
+ #include <stdarg.h>
+ #endif
  /* The GNU C library defines this for functions which it implements
      to always fail with ENOSYS.  Some functions are actually named
      something starting with __ and the normal name is an alias.  */
***************
*** 4424,4429 ****
--- 4444,4457 ----
      libiberty_cv_var_sys_errlist=yes
      ;;

+   *-*-mvs*)
+     # MVS has no extensions
+     ac_cv_func_vfork_works=no
+     libiberty_cv_var_sys_nerr=no
+     libiberty_cv_var_sys_errlist=no
+     libiberty_cv_var_sys_siglist=no
+     ;;
+
    *-*-*vms*)
      # Under VMS, vfork works very different than on Unix. The standard 
test
      # won't work, and it isn't easily adaptable. It makes more sense to
***************
*** 4590,4596 ****
--- 4618,4633 ----
  #endif
  /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+ #if !defined(__MVS__)
  char $ac_func ();
+ #else
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <time.h>
+ #include <string.h>
+ #include <signal.h>
+ #include <stdarg.h>
+ #endif
  /* The GNU C library defines this for functions which it implements
      to always fail with ENOSYS.  Some functions are actually named
      something starting with __ and the normal name is an alias.  */
***************
*** 4926,4932 ****
--- 4963,4971 ----
  #endif
  /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+ #if !defined(__MVS__)
  char $ac_func ();
+ #endif
  /* The GNU C library defines this for functions which it implements
      to always fail with ENOSYS.  Some functions are actually named
      something starting with __ and the normal name is an alias.  */
***************
*** 5256,5262 ****
--- 5295,5303 ----
  #endif
  /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+ #if !defined(__MVS__)
  char $ac_func ();
+ #endif
  /* The GNU C library defines this for functions which it implements
      to always fail with ENOSYS.  Some functions are actually named
      something starting with __ and the normal name is an alias.  */
***************
*** 5555,5561 ****
--- 5596,5611 ----
  #endif
  /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+ #if !defined(__MVS__)
  char $ac_func ();
+ #else
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <time.h>
+ #include <string.h>
+ #include <signal.h>
+ #include <stdarg.h>
+ #endif
  /* The GNU C library defines this for functions which it implements
      to always fail with ENOSYS.  Some functions are actually named
      something starting with __ and the normal name is an alias.  */