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/* Definitions of target machine for GNU compiler, for DEC Alpha
running Windows/NT.
Copyright (C) 1995, 1996, 1998 Free Software Foundation, Inc.
Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
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_DEFAULT
#define TARGET_DEFAULT (MASK_FP | MASK_FPREGS)
#undef TARGET_WINDOWS_NT
#define TARGET_WINDOWS_NT 1
/* Names to predefine in the preprocessor for this target machine. */
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-DWIN32 -D_WIN32 -DWINNT -D__STDC__=0 -DALMOST_STDC\
-D_M_ALPHA -D_ALPHA_ -D__alpha -D__alpha__\
-D_LONGLONG -D__unaligned= -D__stdcall= \
-Asystem(winnt) -Acpu(alpha) -Amachine(alpha)"
#undef ASM_SPEC
#undef ASM_FINAL_SPEC
#define ASM_SPEC "-nopp -nologo %{g:-Zi}"
/* 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
/* "long" is 32 bits. */
#undef LONG_TYPE_SIZE
#define LONG_TYPE_SIZE 32
#undef WCHAR_TYPE
#define WCHAR_TYPE "short unsigned int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 16
/* We can't do any debugging. */
#undef SDB_DEBUGGING_INFO
#undef DBX_DEBUGGING_INFO
#undef MIPS_DEBUGGING_INFO
#include "winnt/win-nt.h"
#undef ASM_FILE_START
#define ASM_FILE_START(FILE) \
{ \
alpha_write_verstamp (FILE); \
fprintf (FILE, "\t.set noreorder\n"); \
fprintf (FILE, "\t.set volatile\n"); \
fprintf (FILE, "\t.set noat\n"); \
fprintf (FILE, "\t.globl\t__fltused\n"); \
ASM_OUTPUT_SOURCE_FILENAME (FILE, main_input_filename); \
}
#undef LIB_SPEC
#define LIB_SPEC "%{mwindows:-subsystem windows -e _WinMainCRTStartup \
USER32.LIB%s GDI32.LIB%s COMDLG32.LIB%s WINSPOOL.LIB%s} \
%{!mwindows:-subsystem console -e _mainCRTStartup} \
%{mcrtmt:LIBCMT.LIB%s KERNEL32.LIB%s} %{!mcrtmt:LIBC.LIB%s KERNEL32.LIB%s} \
%{v}"
/* 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
/* 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, 16, 20, 12)
/* Output code to add DELTA to the first argument, and then jump to FUNCTION.
Used for C++ multiple inheritance. */
#define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \
do { \
char *op, *fn_name = XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0); \
\
/* Mark end of prologue. */ \
output_end_prologue (FILE); \
\
/* Rely on the assembler to macro expand a large delta. */ \
fprintf (FILE, "\tlda $16,%ld($16)\n", (long)(DELTA)); \
\
op = "jsr"; \
if (current_file_function_operand (XEXP (DECL_RTL (FUNCTION), 0))) \
op = "br"; \
fprintf (FILE, "\t%s $31,", op); \
assemble_name (FILE, fn_name); \
fputc ('\n', FILE); \
} while (0)
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