configure.in: Add pj target.

        * configure.in: Add pj target.
        * configure: Regenerate.
        * config/pj: New directory.
        * config/pj/lib1funcs.S: New file.
        * config/pj/linux.h: New file.
        * config/pj/pj.c: New file.
        * config/pj/pj.md: New file.
        * config/pj/pjl.h: New file.
        * config/pj/t-pj: New file.
        * config/pj/xm-pj.h: New file

From-SVN: r31225

gcc/ChangeLog

+Tue Jan  4 22:55:41 2000  Steve Chamberlain <sac@pobox.com>
+
+	* configure.in: Add pj target.
+	* configure: Regenerate.
+	* config/pj: New directory.
+	* config/pj/lib1funcs.S: New file.
+	* config/pj/linux.h: New file.
+	* config/pj/pj.c: New file.
+	* config/pj/pj.md: New file.
+	* config/pj/pjl.h: New file.
+	* config/pj/t-pj: New file.
+	* config/pj/xm-pj.h: New file
+
 Tue Jan  4 22:30:16 2000  Jeffrey A Law  (law@cygnus.com)
 
 	* toplev.c (rest_of_compilation): Run shorten-branches before

gcc/config/pj/lib1funcs.S

+! lib1funcs.S for picoJava.
+!   Copyright (C) 2000 Free Software Foundation, Inc.
+! 
+! This file is free software; you can redistribute it and/or modify it
+! under the terms of the GNU General Public License as published by the
+! Free Software Foundation; either version 2, or (at your option) any
+! later version.
+! 
+! In addition to the permissions in the GNU General Public License, the
+! Free Software Foundation gives you unlimited permission to link the
+! compiled version of this file with other programs, and to distribute
+! those programs without any restriction coming from the use of this
+! file.  (The General Public License restrictions do apply in other
+! respects; for example, they cover modification of the file, and
+! distribution when not linked into another program.)
+! 
+! This file 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
+! General Public License for more details.
+! 
+! You should have received a copy of the GNU General Public License
+! along with this program; see the file COPYING.  If not, write to
+! the Free Software Foundation, 59 Temple Place - Suite 330,
+! Boston, MA 02111-1307, USA.
+! 
+!    As a special exception, if you link this library with files
+!    compiled with GCC to produce an executable, this does not cause
+!    the resulting executable to be covered by the GNU General Public License.
+!    This exception does not however invalidate any other reasons why
+!    the executable file might be covered by the GNU General Public License.
+! 
+
+
+#ifdef Lvhelper
+
+! The vhelper copies unnamed args in a varargs function from the
+! opstack onto the aggregate stack.  It is a bit tricky since the
+! opstack does not exist in real memory, so can not have its address taken,
+! and since the opstack is being played with, there is nowhere to stick
+! the temporaries.
+	
+	.globl __vhelper
+__vhelper:
+
+
+! incoming
+! vars->  named0
+!         named1
+!         ...
+!         unnamed0
+!         unnamed1
+!         ...
+!         pc
+!         vars
+!         #named
+!         return pc
+
+	! work out total size everything below the named args and	
+	! allocate that space on the aggregate stack + 3 extra words
+	! for some temps.
+	! g0   = old g0
+	! g0+4 = vars
+	! g0+8 = pc
+	! g0+12 = last unnamed arg
+	! ....
+
+	write_global1
+	write_global2
+
+	! tos = #named args provided by callee.
+
+	! move down the aggstack to make room for all the unnamed args
+	! and the 12 bytes of extra stuff we have to pay attention to.
+	! g0 = old_g0 - ((vars - optop) + named_bytes + 12) - stuff we just pushed
+
+	! build new global0
+	read_global0
+ 	 read_vars
+	  read_optop
+	 isub                ! tos = vars - optop (# bytes in all args)
+          bipush 4
+         isub                ! subtract out fudge for current stuff on stack.
+ 	  read_global2
+	 isub                ! subtract out # words named.
+        isub
+
+	dup
+	dup
+	! store old global0 in new global0 spot.
+	
+	read_global0
+        swap
+	store_word
+
+	! store new global0 value into global0
+	write_global0
+
+	! work out address to stop copying, which is vars - #named args bytes
+	! but since we will have pushed stuff onto the stack when the comparison
+	! is made, adjust by the fudge factor.
+	 read_vars
+ 	  read_global2
+	   bipush 12
+	  iadd
+ 	 isub
+
+	! optop= finish, vars, pc, ... 
+	! now pop off args from the opstack and copy to aggstack till all done.
+	! during the loop the opstack looks like
+	! (optop_finish_addr) (destination_addr) (named_n) (named_n-1) ....
+	! each iteration pops off one more element.
+
+
+again:
+	  dup_x2
+	   read_optop
+	 if_icmpeq done
+	  iconst_4
+	 iadd 
+	  dup_x2
+	store_word
+	goto again
+
+done:
+	dup2_x1 ; pop2 ; pop   !leave pointer on top.
+
+	! return to caller with varargs pointer as	
+	! the next argument and the restoring global0 as the next. 
+
+	read_global0 ; load_word
+
+	! restore returning pc and vars
+	read_global0 ; bipush 8; iadd; load_word
+	read_global0 ; bipush 4; iadd; load_word
+
+	! return to caller.
+	read_global1
+	write_pc
+#endif
+
+
+#ifdef __LITTLE_ENDIAN__
+#define AL iload_1
+#define AH iload_0
+#define BL iload_3	
+#define BH iload_2
+#else
+#define AL iload_0
+#define AH iload_1
+#define BL iload_2
+#define BH iload_3
+#endif	
+#ifdef Lpjucmpdi2
+
+! like ucmpdi2, but returns <0,0,>0 depending on comparison input.
+! and returns answer on the stack, not in global1.  - much like an
+! actual lucmp instruction would do if there was one.
+!	      big         little
+!  
+!  vars-> 0 a low         high
+!	  1 a high        low
+!         2 b low         high
+!	  3 b high        low
+!
+! compares a to b
+! a > b return 1
+! a = b return 0
+! a < b return -1		
+	
+	.globl __pjucmpdi2
+__pjucmpdi2:
+
+! first see if we can compare the numbers using
+! the signed instruction.
+	
+	AH
+	BH
+	if_icmpne	high_words_diff
+	AL
+	BL
+	iucmp
+	return1
+
+! and low word if high word is equal.	
+
+high_words_diff:		
+	AH
+	BH
+	iucmp
+	return1
+#endif

gcc/config/pj/linux.h

+/* Definitions for a picoJava Linux-based GNU system.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* contributed by Steve Chamberlain, of Transmeta. sac@pobox.com. */
+
+#define TARGET_LITTLE_ENDIAN_DEFAULT 1
+
+#undef CPP_PREDEFINES
+#undef STARTFILE_SPEC
+#undef ENDFILE_SPEC
+
+#define CPP_PREDEFINES "-D__ELF__ -Dunix -D__pj__ -Dlinux -Asystem(posix)"
+#define STARTFILE_SPEC "crt1.o%s crti.o%s crtbegin.o%s"
+#define ENDFILE_SPEC   "crtend.o%s crtn.o%s"
+
+#undef WCHAR_TYPE_SIZE
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "long int"
+#define WCHAR_TYPE_SIZE BITS_PER_WORD

gcc/config/pj/pj-protos.h

+/* Prototypes for pj.c functions used in the md file & elsewhere.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+void pj_expand_prologue PARAMS ((void));
+void pj_expand_epilogue PARAMS ((void));
+void pj_asm_output_opcode PARAMS ((FILE *, const char *));
+
+#ifdef RTX_CODE
+extern rtx pj_cmp_op0;
+extern rtx pj_cmp_op1;
+extern enum machine_mode pj_cmp_mode;
+extern int pj_stuff_on_line;
+extern const char *pj_standard_float_constant PARAMS ((rtx));
+extern int pj_source_operand PARAMS ((rtx op, enum machine_mode mode));
+extern int pj_signed_comparison_operator PARAMS ((rtx, enum machine_mode));
+extern int pj_unsigned_comparison_operator PARAMS ((rtx, enum machine_mode));
+extern rtx pj_workout_arg_words PARAMS ((rtx, rtx));
+extern void pj_machine_dependent_reorg PARAMS ((rtx));
+extern void pj_print_operand PARAMS ((FILE * stream, rtx x, int code));
+extern char *pj_output_addsi3 PARAMS ((rtx * operands));
+
+#ifdef TREE_CODE
+extern rtx pj_expand_builtin_va_arg PARAMS ((tree valist, tree type));
+extern rtx pj_function_incoming_arg PARAMS ((CUMULATIVE_ARGS * args_so_far,
+					     enum machine_mode promote_mode,
+					     tree passed_type,
+					     int named_arg));
+#endif
+#endif

gcc/config/pj/pjl.h

+#define TARGET_LITTLE_ENDIAN_DEFAULT 1

gcc/config/pj/t-pj

+CROSS_LIBGCC1 = libgcc1-asm.a
+LIB1ASMSRC = pj/lib1funcs.S
+LIB1ASMFUNCS = vhelper pjucmpdi2
+LIB2FUNCS_EXTRA =
+
+# For svr4 we build crtbegin.o and crtend.o which serve to add begin and
+# end labels to the .ctors and .dtors section when we link using gcc.
+
+EXTRA_PARTS=crtbegin.o crtend.o

gcc/config/pj/xm-pj.h

+/* Configuration for GNU C-compiler for picoJava.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* #defines that need visibility everywhere.  */
+#define FALSE 0
+#define TRUE 1
+
+/* This describes the machine the compiler is hosted on.  */
+#define HOST_BITS_PER_CHAR 8
+#define HOST_BITS_PER_SHORT 16
+#define HOST_BITS_PER_INT 32
+#define HOST_BITS_PER_LONG 32
+#define HOST_BITS_PER_LONGLONG 64
+
+/* Arguments to use with `exit'.  */
+#define SUCCESS_EXIT_CODE 0
+#define FATAL_EXIT_CODE 33
+
+/* target machine dependencies.
+   tm.h is a symbolic link to the actual target specific file.   */
+
+#include "tm.h"

gcc/configure.in

@@ -513,6 +513,9 @@ changequote([,])dnl
 	mips*-*-*)
 		cpu_type=mips
 		;;
+ 	pj*-*-*)
+ 		cpu_type=pj
+ 		;;
 	powerpc*-*-*)
 		cpu_type=rs6000
 		;;
@@ -2911,6 +2914,16 @@ changequote([,])dnl
 #		xmake_file=pyr/x-pyr
 #		use_collect2=yes
 #		;;
+
+  	pj*-linux*)
+		tm_file="svr4.h pj/linux.h ${tm_file}"
+ 		;;
+  	pj-*)
+ 		;;
+  	pjl-*)
+		tm_file="svr4.h pj/pjl.h ${tm_file}"
+ 		;;
+
 	romp-*-aos*)
 		use_collect2=yes
 		;;