/* Definitions of target machine for GNU compiler, for DEC Alpha running Windows/NT. Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc. Derived from code Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) Donn Terry, Softway Systems, Inc. This file contains the code-generation stuff common to the 32-bit versions of the DEC/Compaq Alpha architecture. It is shared by Interix and NT/Win32 ports. It should not contain compile-time or run-time dependent environment values (such as compiler options or anything containing a file or pathname.) 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. */ #undef TARGET_ABI_WINDOWS_NT #define TARGET_ABI_WINDOWS_NT 1 /* WinNT (and thus Interix) use unsigned int */ #define SIZE_TYPE "unsigned int" /* Pointer is 32 bits but the hardware has 64-bit addresses, sign extended. */ #undef POINTER_SIZE #define POINTER_SIZE 32 #define POINTERS_EXTEND_UNSIGNED 0 /* We don't change Pmode to the "obvious" SI mode... the above appears to affect the in-memory size; we want the registers to stay DImode to match the md file */ /* "long" is 32 bits. */ #undef LONG_TYPE_SIZE #define LONG_TYPE_SIZE 32 /* Output assembler code for a block containing the constant parts of a trampoline, leaving space for the variable parts. The trampoline should set the static chain pointer to value placed into the trampoline and should branch to the specified routine. */ #undef TRAMPOLINE_TEMPLATE #define TRAMPOLINE_TEMPLATE(FILE) \ { \ fprintf (FILE, "\tbr $27,$LTRAMPP\n"); \ fprintf (FILE, "$LTRAMPP:\n\tldl $1,12($27)\n"); \ fprintf (FILE, "\tldl $27,16($27)\n"); \ fprintf (FILE, "\tjmp $31,($27),0\n"); \ fprintf (FILE, "\t.long 0,0\n"); \ } /* Length in units of the trampoline for entering a nested function. */ #undef TRAMPOLINE_SIZE #define TRAMPOLINE_SIZE 24 /* The alignment of a trampoline, in bits. */ #undef TRAMPOLINE_ALIGNMENT #define TRAMPOLINE_ALIGNMENT 32 /* Emit RTL insns to initialize the variable parts of a trampoline. FNADDR is an RTX for the address of the function's pure code. CXT is an RTX for the static chain value for the function. */ #undef INITIALIZE_TRAMPOLINE #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ alpha_initialize_trampoline (TRAMP, FNADDR, CXT, 20, 16, 12)