mpir/config.guess

#! /bin/sh
#
# GMP config.guess wrapper.


# Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
# Inc.
#
# Copyright 2008 William Hart, Gonzalo Tornaria
#
# This file is part of the MPIR Library.
#
# The MPIR Library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation; either version 2.1 of the License, or (at
# your option) any later version.
#
# The MPIR Library 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 Lesser General Public
# License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with the MPIR Library; see the file COPYING.LIB.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.


# Usage: config.guess
#
# Print the host system CPU-VENDOR-OS.
#
# configfsf.guess is run and its guess then sharpened up to take advantage
# of the finer grained CPU types that GMP knows.


# Expect to find configfsf.guess in the same directory as this config.guess
configfsf_guess="`echo \"$0\" | sed 's/config.guess$/configfsf.guess/'`"
cpuid_c_path="`echo \"$0\" | sed 's/config.guess$/cpuid.c/'`"
if test "$configfsf_guess" = "$0"; then
  echo "Cannot derive configfsf.guess from $0" 1>&2
  exit 1
fi
if test -f "$configfsf_guess"; then
  :
else
  echo "$configfsf_guess not found" 1>&2
  exit 1
fi

# Setup a $SHELL with which to run configfsf.guess, using the same
# $CONFIG_SHELL or /bin/sh as autoconf does when running config.guess
SHELL=${CONFIG_SHELL-/bin/sh}

# Identify ourselves on --version, --help or errors
if test $# != 0; then
  echo "(GNU MP wrapped config.guess)"
  $SHELL $configfsf_guess "$@"
  exit 1
fi

guess_full=`$SHELL $configfsf_guess`
if test $? != 0; then
  exit 1
fi

guess_cpu=`echo "$guess_full" | sed 's/-.*$//'`
guess_rest=`echo "$guess_full" | sed 's/^[^-]*//'`
exact_cpu=


# -------------------------------------------------------------------------
# The following should look at the current guess and probe the system to
# establish a better guess in exact_cpu.  Leave exact_cpu empty if probes
# can't be done, or don't work.
#
# When a number of probes are done, test -z "$exact_cpu" can be used instead
# of putting each probe under an "else" of the preceeding.  That can stop
# the code getting horribly nested and marching off the right side of the
# screen.

# Note that when a compile-and-link is done in one step we need to remove .o
# files, since lame C compilers generate these even when not asked.
#

dummy=dummy-$$
trap 'rm -f $dummy.c $dummy.o $dummy.core $dummy ${dummy}1.s ${dummy}2.c ; exit 1' 1 2 15

# Use $HOST_CC if defined. $CC may point to a cross-compiler
if test x"$CC_FOR_BUILD" = x; then
  if test x"$HOST_CC" != x; then
    CC_FOR_BUILD="$HOST_CC"
  else
    if test x"$CC" != x; then
      CC_FOR_BUILD="$CC"
    else
      echo 'dummy(){}' >$dummy.c
      for c in cc gcc c89 c99; do
	  ($c $dummy.c -c) >/dev/null 2>&1
	  if test $? = 0; then
	      CC_FOR_BUILD="$c"; break
	  fi
      done
      rm -f $dummy.c $dummy.o
      if test x"$CC_FOR_BUILD" = x; then
	CC_FOR_BUILD=no_compiler_found
      fi
    fi
  fi
fi

#here we have to distinguish between mingw32 32bit and 64bit , as the msys people refuse to
#as we changing the middle part of the triple we do this first
# find the size of a limb

case "$guess_full" in

*-pc-mingw32)

  cat <<EOF >${dummy}.c
main(){
#ifdef _WIN64
printf("-w64-mingw32\n");
#endif
return 0;}
EOF
  if ($CC_FOR_BUILD ${dummy}.c -o $dummy) >/dev/null 2>&1; then
    x=`$SHELL -c ./$dummy 2>/dev/null`
    if test $? = 0 && test -n "$x"; then
      guess_rest=$x
    fi
  fi
  rm -f ${dummy}.c $dummy
  ;;
esac




case "$guess_full" in

ia64*-*-*)
  # CPUID[3] bits 24 to 31 is the processor family.  itanium2 is documented
  # as 0x1f, plain itanium has been seen returning 0x07 on two systems, but
  # haven't found any documentation on it as such.
  #
  # Defining both getcpuid and _getcpuid lets us ignore whether the system
  # expects underscores or not.
  #
  # "unsigned long long" is always 64 bits, in fact on hpux in ilp32 mode
  # (which is the default there), it's the only 64-bit type.
  #
  cat >${dummy}a.s <<EOF
	.text
	.global	_getcpuid
	.proc	_getcpuid
_getcpuid:
	mov	r8 = CPUID[r32] ;;
	br.ret.sptk.many rp ;;
	.endp	_getcpuid
	.global	getcpuid
	.proc	getcpuid
getcpuid:
	mov	r8 = CPUID[r32] ;;
	br.ret.sptk.many rp ;;
	.endp	getcpuid
EOF
  cat >${dummy}b.c <<EOF
#include <stdio.h>
unsigned long long getcpuid ();
int
main ()
{
  if (getcpuid(0LL) == 0x49656E69756E6547LL && getcpuid(1LL) == 0x6C65746ELL)
    {
      /* "GenuineIntel" */
      switch ((getcpuid(3LL) >> 24) & 0xFF) {
      case 0x07: puts ("itanium");  break;
      case 0x1F: puts ("itanium2"); break;
      }
    }
  return 0;
}
EOF
  if $CC_FOR_BUILD ${dummy}a.s ${dummy}b.c -o $dummy >/dev/null 2>&1; then
    exact_cpu=`./$dummy`
  fi
  rm -f ${dummy}a.s ${dummy}a.o ${dummy}b.c ${dummy}b.o $dummy $dummy.core core
  ;;

rs6000-*-* | powerpc*-*-*)
  # Enhancement: On MacOS the "machine" command prints for instance
  # "ppc750".  Interestingly on powerpc970-apple-darwin6.8.5 it prints
  # "ppc970" where there's no actual #define for 970 from NXGetLocalArchInfo
  # (as noted below).  But the man page says the command is still "under
  # development", so it doesn't seem wise to use it just yet, not while
  # there's an alternative.
  #
  # Try to read the PVR.  mfpvr is a protected instruction, NetBSD, MacOS
  # and AIX don't allow it in user mode, but the Linux kernel does.
  #
  # Using explicit bytes for mfpvr avoids worrying about assembler syntax
  # and underscores.  "char"s are used instead of "int"s to avoid worrying
  # whether sizeof(int)==4 or if it's the right endianness.
  #
  # Note this is no good on AIX, since a C function there is the address of
  # a function descriptor, not actual code.  But this doesn't matter since
  # AIX doesn't allow mfpvr anyway.
  #
  cat >$dummy.c <<\EOF
#include <stdio.h>
struct {
  int   n;  /* force 4-byte alignment */
  char  a[8];
} getpvr = {
  0,
  {
    0x7c, 0x7f, 0x42, 0xa6,  /* mfpvr r3 */
    0x4e, 0x80, 0x00, 0x20,  /* blr      */
  }
};
int
main ()
{
  unsigned  (*fun)();
  unsigned  pvr;

  /* a separate "fun" variable is necessary for gcc 2.95.2 on MacOS,
     it gets a compiler error on a combined cast and call */
  fun = (unsigned (*)()) getpvr.a;
  pvr = (*fun) ();

  switch (pvr >> 16) {
  case 0x0001: puts ("powerpc601");  break;
  case 0x0003: puts ("powerpc603");  break;
  case 0x0004: puts ("powerpc604");  break;
  case 0x0006: puts ("powerpc603e"); break;
  case 0x0007: puts ("powerpc603e"); break;  /* 603ev */
  case 0x0008: puts ("powerpc750");  break;
  case 0x0009: puts ("powerpc604e"); break;
  case 0x000a: puts ("powerpc604e"); break;  /* 604ev5 */
  case 0x000c: puts ("powerpc7400"); break;
  case 0x0041: puts ("powerpc630");  break;
  case 0x0050: puts ("powerpc860");  break;
  case 0x8000: puts ("powerpc7450"); break;
  case 0x8001: puts ("powerpc7455"); break;
  case 0x8002: puts ("powerpc7457"); break;
  case 0x800c: puts ("powerpc7410"); break;
  }
  return 0;
}
EOF
  if ($CC_FOR_BUILD $dummy.c -o $dummy) >/dev/null 2>&1; then
    # This style construct is needed on AIX 4.3 to suppress the SIGILL error
    # from (*fun)().  Using $SHELL -c ./$dummy 2>/dev/null doesn't work.
    { x=`./$dummy`; } 2>/dev/null
    if test -n "$x"; then
      exact_cpu=$x
    fi
  fi
  rm -f $dummy.c $dummy.o $dummy $dummy.core

  # Grep the linux kernel /proc/cpuinfo pseudo-file.
  # Anything unrecognised is ignored, since of course we mustn't spit out
  # a cpu type config.sub doesn't know.
  if test -z "$exact_cpu" && test -f /proc/cpuinfo; then
    x=`grep "^cpu[ 	]" /proc/cpuinfo | head -n 1`
    x=`echo $x | sed -n 's/^cpu[ 	]*:[ 	]*\([A-Za-z0-9]*\).*/\1/p'`
    x=`echo $x | sed 's/PPC//'`
    case $x in
      601)     exact_cpu="power" ;;
      603ev)   exact_cpu="powerpc603e" ;;
      604ev5)  exact_cpu="powerpc604e" ;;
      603 | 603e | 604 | 604e | 750 | 821 | 860 | 970)
        exact_cpu="powerpc$x" ;;
      POWER[4-9])
        exact_cpu=`echo $x | sed "s;POWER;power;"` ;;
    esac
  fi

  if test -z "$exact_cpu"; then
    # On AIX, try looking at _system_configuration.  This is present in
    # version 4 at least.
    cat >$dummy.c <<EOF
#include <stdio.h>
#include <sys/systemcfg.h>
int
main ()
{
  switch (_system_configuration.implementation) {
  /* Old versions of AIX don't have all these constants,
     use ifdef for safety. */
#ifdef POWER_RS2
  case POWER_RS2:    puts ("power2");     break;
#endif
#ifdef POWER_601
  case POWER_601:    puts ("power");      break;
#endif
#ifdef POWER_603
  case POWER_603:    puts ("powerpc603"); break;
#endif
#ifdef POWER_604
  case POWER_604:    puts ("powerpc604"); break;
#endif
#ifdef POWER_620
  case POWER_620:    puts ("powerpc620"); break;
#endif
#ifdef POWER_630
  case POWER_630:    puts ("powerpc630"); break;
#endif
  /* Dunno what this is, leave it out for now.
  case POWER_A35:    puts ("powerpca35"); break;
  */
  /* This is waiting for a bit more info.
  case POWER_RS64II: puts ("powerpcrs64ii"); break;
  */
  default:
    if (_system_configuration.architecture == POWER_RS)
      puts ("power");
    else if (_system_configuration.width == 64)
      puts ("powerpc64");
  }
  return 0;
}
EOF
    if ($CC_FOR_BUILD $dummy.c -o $dummy) >/dev/null 2>&1; then
      x=`./$dummy`
      if test -n "$x"; then
        exact_cpu=$x
      fi
    fi
    rm -f $dummy.c $dummy.o $dummy
  fi

  if test -z "$exact_cpu"; then
    # On MacOS X (or any Mach-O presumably), NXGetLocalArchInfo cpusubtype
    # can tell us the exact cpu.
    cat >$dummy.c <<EOF
#include <stdio.h>
#include <mach-o/arch.h>
int
main (void)
{
  const NXArchInfo *a = NXGetLocalArchInfo();
  if (a->cputype == CPU_TYPE_POWERPC)
    {
      switch (a->cpusubtype) {
      /* The following known to Darwin 1.3. */
      case CPU_SUBTYPE_POWERPC_601:   puts ("powerpc601");  break;
      case CPU_SUBTYPE_POWERPC_602:   puts ("powerpc602");  break;
      case CPU_SUBTYPE_POWERPC_603:   puts ("powerpc603");  break;
      case CPU_SUBTYPE_POWERPC_603e:  puts ("powerpc603e"); break;
      case CPU_SUBTYPE_POWERPC_603ev: puts ("powerpc603e"); break;
      case CPU_SUBTYPE_POWERPC_604:   puts ("powerpc604");  break;
      case CPU_SUBTYPE_POWERPC_604e:  puts ("powerpc604e"); break;
      case CPU_SUBTYPE_POWERPC_620:   puts ("powerpc620");  break;
      case CPU_SUBTYPE_POWERPC_750:   puts ("powerpc750");  break;
      case CPU_SUBTYPE_POWERPC_7400:  puts ("powerpc7400"); break;
      case CPU_SUBTYPE_POWERPC_7450:  puts ("powerpc7450"); break;
      /* Darwin 6.8.5 doesn't define a constant for 970, but gives 100 */
      case 100:                       puts ("powerpc970");  break;
      }
    }
  return 0;
}
EOF
    if ($CC_FOR_BUILD $dummy.c -o $dummy) >/dev/null 2>&1; then
      x=`./$dummy`
      if test -n "$x"; then
        exact_cpu=$x
      fi
    fi
    rm -f $dummy.c $dummy.o $dummy
  fi
  ;;

sparc-*-* | sparc64-*-*)
  # If we can recognise an actual v7 then $exact_cpu is set to "sparc" so as
  # to short-circuit subsequent tests.

  # Grep the linux kernel /proc/cpuinfo pseudo-file.
  # A typical line is "cpu\t\t: TI UltraSparc II  (BlackBird)"
  # See arch/sparc/kernel/cpu.c and arch/sparc64/kernel/cpu.c.
  #
  if test -f /proc/cpuinfo; then
    if grep 'cpu.*Cypress' /proc/cpuinfo >/dev/null; then
      exact_cpu="sparc"   # ie. v7
    elif grep 'cpu.*Power-UP' /proc/cpuinfo >/dev/null; then
      exact_cpu="sparc"   # ie. v7
    elif grep 'cpu.*HyperSparc' /proc/cpuinfo >/dev/null; then
      exact_cpu="sparcv8"
    elif grep 'cpu.*SuperSparc' /proc/cpuinfo >/dev/null; then
      exact_cpu="supersparc"
    elif grep 'cpu.*MicroSparc' /proc/cpuinfo >/dev/null; then
      exact_cpu="microsparc"
    elif grep 'cpu.*MB86904' /proc/cpuinfo >/dev/null; then
      # actually MicroSPARC-II
      exact_cpu=microsparc
    elif grep 'cpu.*UltraSparc T1' /proc/cpuinfo >/dev/null; then
      # this grep pattern has not been tested against any Linux
      exact_cpu="ultrasparct1"
    elif grep 'cpu.*UltraSparc III' /proc/cpuinfo >/dev/null; then
      exact_cpu="ultrasparc3"
    elif grep 'cpu.*UltraSparc IIi' /proc/cpuinfo >/dev/null; then
      exact_cpu="ultrasparc2i"
    elif grep 'cpu.*UltraSparc II' /proc/cpuinfo >/dev/null; then
      exact_cpu="ultrasparc2"
    elif grep 'cpu.*UltraSparc' /proc/cpuinfo >/dev/null; then
      exact_cpu="ultrasparc"
    fi
  fi

  # Grep the output from sysinfo on SunOS.
  # sysinfo has been seen living in /bin or in /usr/kvm
  #	cpu0 is a "SuperSPARC Model 41 SPARCmodule" CPU
  #	cpu0 is a "75 MHz TI,TMS390Z55" CPU
  #
  if test -z "$exact_cpu"; then
    for i in sysinfo /usr/kvm/sysinfo; do
      if $SHELL -c $i 2>/dev/null >conftest.dat; then
        if grep 'cpu0 is a "SuperSPARC' conftest.dat >/dev/null; then
          exact_cpu=supersparc
          break
        elif grep 'cpu0 is a .*TMS390Z5.' conftest.dat >/dev/null; then
          # TMS390Z50 and TMS390Z55
          exact_cpu=supersparc
          break
        fi
      fi
    done
    rm -f conftest.dat
  fi

  # Grep the output from prtconf on Solaris.
  # Use an explicit /usr/sbin, since that directory might not be in a normal
  # user's path.
  #
  #     SUNW,UltraSPARC (driver not attached)
  #     SUNW,UltraSPARC-II (driver not attached)
  #     SUNW,UltraSPARC-IIi (driver not attached)
  #     SUNW,UltraSPARC-III+ (driver not attached)
  #     Ross,RT625 (driver not attached)
  #     TI,TMS390Z50 (driver not attached)
  #
  # /usr/sbin/sysdef prints similar information, but includes all loadable
  # cpu modules, not just the real cpu.
  #
  # We first try a plain prtconf, since that is known to work on older systems.
  # But for newer T1 systems, that doesn't produce any useful output, we need
  # "prtconf -vp" there.
  #
  for prtconfopt in "" "-vp"; do
    if test -z "$exact_cpu"; then
      if $SHELL -c "/usr/sbin/prtconf $prtconfopt" 2>/dev/null >conftest.dat; then
	if grep 'SUNW,UltraSPARC-T1' conftest.dat >/dev/null; then
	  exact_cpu=ultrasparct1
	elif grep 'SUNW,UltraSPARC-III' conftest.dat >/dev/null; then
	  exact_cpu=ultrasparc3
	elif grep 'SUNW,UltraSPARC-IIi' conftest.dat >/dev/null; then
	  exact_cpu=ultrasparc2i
	elif grep 'SUNW,UltraSPARC-II' conftest.dat >/dev/null; then
	  exact_cpu=ultrasparc2
	elif grep 'SUNW,UltraSPARC' conftest.dat >/dev/null; then
	  exact_cpu=ultrasparc
	elif grep 'Ross,RT62.' conftest.dat >/dev/null; then
	  # RT620, RT625, RT626 hypersparcs (v8).
	  exact_cpu=sparcv8
	elif grep 'TI,TMS390Z5.' conftest.dat >/dev/null; then
	  # TMS390Z50 and TMS390Z55
	  exact_cpu=supersparc
	elif grep 'TI,TMS390S10' conftest.dat >/dev/null; then
	  exact_cpu=microsparc
	elif grep 'FMI,MB86904' conftest.dat >/dev/null; then
	  # actually MicroSPARC-II
	  exact_cpu=microsparc
	fi
      fi
      rm -f conftest.dat
    fi
  done

  # Grep the output from sysctl hw.model on sparc or sparc64 *BSD.
  # Use an explicit /sbin, since that directory might not be in a normal
  # user's path.  Example outputs,
  #
  #     hw.model: Sun Microsystems UltraSparc-IIi
  #
  if test -z "$exact_cpu"; then
    if $SHELL -c "/sbin/sysctl hw.model" 2>/dev/null >conftest.dat; then
      if grep 'UltraSparc-T1' conftest.dat >/dev/null; then
	# this grep pattern has not been tested against any BSD
        exact_cpu=ultrasparct1
      elif grep 'UltraSparc-III' conftest.dat >/dev/null; then
        exact_cpu=ultrasparc3
      elif grep 'UltraSparc-IIi' conftest.dat >/dev/null; then
        exact_cpu=ultrasparc2i
      elif grep 'UltraSparc-II' conftest.dat >/dev/null; then
        exact_cpu=ultrasparc2
      elif grep 'UltraSparc' conftest.dat >/dev/null; then
        exact_cpu=ultrasparc
      elif grep 'TMS390Z5.' conftest.dat >/dev/null; then
        # TMS390Z50 and TMS390Z55
        exact_cpu=supersparc
      elif grep 'TMS390S10' conftest.dat >/dev/null; then
        exact_cpu=microsparc
      elif grep 'MB86904' conftest.dat >/dev/null; then
        # actually MicroSPARC-II
        exact_cpu=microsparc
      elif grep 'MB86907' conftest.dat >/dev/null; then
        exact_cpu=turbosparc
      fi
    fi
    rm -f conftest.dat
  fi

  # sun4m and sun4d are v8s of some sort, sun4u is a v9 of some sort
  #
  if test -z "$exact_cpu"; then
    case `uname -m` in
      sun4[md]) exact_cpu=sparcv8 ;;
      sun4u)    exact_cpu=sparcv9 ;;
    esac
  fi
  ;;

i?86-*-*|x86_64-*-*|amd64-*-*)
    cat <<EOF >${dummy}032.s
	.globl cpuid
	.globl _cpuid
cpuid:
_cpuid:
	pushl %esi
	pushl %ebx
	movl 16(%esp),%eax
	.byte 0x0f
	.byte 0xa2
	movl 12(%esp),%esi
	movl %ebx,(%esi)
	movl %edx,4(%esi)
	movl %ecx,8(%esi)
	popl %ebx
	popl %esi
	ret
EOF
  cat <<EOF >${dummy}064.s
	.globl cpuid
	.globl _cpuid
cpuid:
_cpuid:
	movq %rbx,%r11
	movq %rdi,%r9
	movq %rsi,%rax
	orq  %r8,%r8
	cmovne %rcx,%r9
	cmovne %rdx,%rax	
	.byte 0x0f
	.byte 0xa2
	movl %ebx,(%r9)
	movl %edx,4(%r9)
	movl %ecx,8(%r9)
	movq %r11,%rbx
	ret
EOF
  cat <<EOF >${dummy}32.c
#define CONFIG_GUESS		1
#define CONFIG_GUESS_32BIT	1
#define CONFIG_GUESS_64BIT	0
#define FAT32			0
#define FAT64			0
#define INFAT			0
EOF
cat $cpuid_c_path  >> ${dummy}32.c
  cat <<EOF >>${dummy}32.c
main (){char *modelstr;
  modelstr=__gmpn_cpu(0);
  printf ("%s\n", modelstr);
  return 0;}
EOF
  cat <<EOF >${dummy}64.c
#define CONFIG_GUESS		1
#define CONFIG_GUESS_32BIT	0
#define CONFIG_GUESS_64BIT	1
#define FAT32			0
#define FAT64			0
#define INFAT			0
EOF
cat $cpuid_c_path  >> ${dummy}64.c
  cat <<EOF >>${dummy}64.c
main (){char *modelstr;
  modelstr=__gmpn_cpu(0);
  printf ("%s\n", modelstr);
  return 0;}
EOF

  if ($CC_FOR_BUILD ${dummy}064.s ${dummy}64.c -o $dummy) >/dev/null 2>&1; then
    # On 80386 and early 80486 cpuid is not available and will result in a
    # SIGILL message, hence 2>/dev/null.
    #
    # On i386-unknown-freebsd4.9, "/bin/sh -c ./dummy" seems to send an
    # "Illegal instruction (core dumped)" message to stdout, so we test $?
    # to check if the program run was successful.
    #
    x=`$SHELL -c ./$dummy 2>/dev/null` 
    if test $? = 0 && test -n "$x"; then
      exact_cpu=$x
    fi
  fi
  if test -z "$exact_cpu"; then  
  if ($CC_FOR_BUILD ${dummy}032.s ${dummy}32.c -o $dummy) >/dev/null 2>&1; then
    # On 80386 and early 80486 cpuid is not available and will result in a
    # SIGILL message, hence 2>/dev/null.
    #
    # On i386-unknown-freebsd4.9, "/bin/sh -c ./dummy" seems to send an
    # "Illegal instruction (core dumped)" message to stdout, so we test $?
    # to check if the program run was successful.
    #
    #  NOTE : Pathscale CC doesn't like name1.s name2.c with name1==name2
    x=`$SHELL -c ./$dummy 2>/dev/null`
    if test $? = 0 && test -n "$x"; then
      exact_cpu=$x
    fi
  fi
  fi
  
  # We need to remove some .o files here since lame C compilers
  # generate these even when not asked.
  rm -f ${dummy}032.s ${dummy}32.o ${dummy}32.c ${dummy}032.o ${dummy}064.s ${dummy}64.o ${dummy}64.c ${dummy}064.o $dummy ${dummy}.exe
  ;;

esac



# -------------------------------------------------------------------------
# Use an exact cpu, if possible

if test -n "$exact_cpu"; then
  echo "$exact_cpu$guess_rest"
else
  echo "$guess_full"
fi

exit 0



# Local variables:
# fill-column: 76
# End: