Patch to fix sparc-sun-solaris2.7 bootstrap (version 2)

[John Wehle]

[ This version is less intrusive. ]

Attempting to bootstrap on Solaris SPARC fails with:

/usr/local/build/sparc-sun-solaris2.7/GNU/gcc-current/gcc/xgcc -B/usr/local/build/sparc-sun-solaris2.7/GNU/gcc-current/gcc/ -B/usr/local/sparc-sun-solaris2.7/bin/ -B/usr/local/sparc-sun-solaris2.7/lib/ -isystem /usr/local/sparc-sun-solaris2.7/include -fgnu-runtime -c -I. -I../../../../../../src/GNU/gcc-current/libobjc -g -O2 -DHAVE_GTHR_DEFAULT -DIN_GCC -DIN_TARGET_LIBS -I../../../../../../src/GNU/gcc-current/libobjc/objc -I../../../../../../src/GNU/gcc-current/libobjc/../gcc -I../../../../../../src/GNU/gcc-current/libobjc/../gcc/config -I../../gcc -I../../../../../../src/GNU/gcc-current/libobjc/../include ../../../../../../src/GNU/gcc-current/libobjc/linking.m -o linking.o
/usr/ccs/bin/as: "/var/tmp//ccwjdWLL.s", line 171: error: cannot use v9 instructions in a non-v9 target binary
make[2]: *** [linking.lo] Error 1

due to gcc outputing .uaxword which the Sun assembler dislikes when targeting
the 32 bit instruction set.

This patch allows Solaris 7 SPARC to bootstrap.

ChangeLog:

Tue Oct  2 20:36:40 EDT 2001  John Wehle  (john@feith.com)

	* dwarf2asm.c (unaligned_integer_asm_op): Abort if
	op is NULL.
	* sparc/sysv4.h (UNALIGNED_DOUBLE_INT_ASM_OP): Use
	only if TARGET_ARCH64.

Enjoy!

-- John Wehle
------------------8<------------------------8<------------------------
*** gcc/dwarf2asm.c.ORIGINAL	Wed Aug 29 17:24:06 2001
--- gcc/dwarf2asm.c	Tue Oct  2 16:52:01 2001
*************** static inline const char *
*** 54,60 ****
  unaligned_integer_asm_op (size)
       int size;
  {
!   const char *op;
    switch (size)
      {
      case 1:
--- 54,60 ----
  unaligned_integer_asm_op (size)
       int size;
  {
!   const char *op = NULL;
    switch (size)
      {
      case 1:
*************** unaligned_integer_asm_op (size)
*** 74,79 ****
--- 74,83 ----
      default:
        abort ();
      }
+ 
+   if (! op)
+     abort ();
+ 
    return op;
  }
  #endif /* UNALIGNED_INT_ASM_OP */
*** gcc/config/sparc/sysv4.h.ORIGINAL	Tue Oct  2 20:32:33 2001
--- gcc/config/sparc/sysv4.h	Mon Oct  1 00:19:49 2001
*************** Boston, MA 02111-1307, USA.  */
*** 96,102 ****
  #define STRING_ASM_OP		"\t.asciz\t"
  #define COMMON_ASM_OP		"\t.common\t"
  #define SKIP_ASM_OP		"\t.skip\t"
! #define UNALIGNED_DOUBLE_INT_ASM_OP "\t.uaxword\t"
  #define UNALIGNED_INT_ASM_OP	"\t.uaword\t"
  #define UNALIGNED_SHORT_ASM_OP	"\t.uahalf\t"
  #define PUSHSECTION_ASM_OP	"\t.pushsection\t"
--- 96,102 ----
  #define STRING_ASM_OP		"\t.asciz\t"
  #define COMMON_ASM_OP		"\t.common\t"
  #define SKIP_ASM_OP		"\t.skip\t"
! #define UNALIGNED_DOUBLE_INT_ASM_OP (TARGET_ARCH64 ? "\t.uaxword\t" : NULL)
  #define UNALIGNED_INT_ASM_OP	"\t.uaword\t"
  #define UNALIGNED_SHORT_ASM_OP	"\t.uahalf\t"
  #define PUSHSECTION_ASM_OP	"\t.pushsection\t"
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