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1 /* Configuration file for an alpha OpenBSD target.
2 Copyright (C) 1999 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* We settle for little endian for now. */
22 #define TARGET_ENDIAN_DEFAULT 0
24 #define OBSD_NO_DYNAMIC_LIBRARIES
25 #define OBSD_HAS_DECLARE_FUNCTION_NAME
26 #define OBSD_HAS_DECLARE_FUNCTION_SIZE
27 #define OBSD_HAS_DECLARE_OBJECT
29 /* alpha ecoff supports only weak aliases, see below. */
30 #define ASM_WEAKEN_LABEL(FILE,NAME) ASM_OUTPUT_WEAK_ALIAS (FILE,NAME,0)
34 /* Controlling the compilation driver. */
36 /* alpha needs __start. */
39 "%{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp %{assert*}"
41 /* run-time target specifications */
42 #define TARGET_OS_CPP_BUILTINS() \
44 builtin_define ("__OpenBSD__"); \
45 builtin_define ("__ANSI_COMPAT"); \
46 builtin_define ("__unix__"); \
47 builtin_assert ("system=unix"); \
50 /* Layout of source language data types. */
52 /* This must agree with <machine/ansi.h> */
54 #define SIZE_TYPE "long unsigned int"
57 #define PTRDIFF_TYPE "long int"
60 #define WCHAR_TYPE "int"
62 #undef WCHAR_TYPE_SIZE
63 #define WCHAR_TYPE_SIZE 32
66 #undef PREFERRED_DEBUGGING_TYPE
67 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
69 #define LOCAL_LABEL_PREFIX "."
71 /* We don't have an init section yet. */
72 #undef HAS_INIT_SECTION
74 /* collect2 support (assembler format: macros for initialization). */
76 /* Don't tell collect2 we use COFF as we don't have (yet ?) a dynamic ld
77 library with the proper functions to handle this -> collect2 will
78 default to using nm. */
79 #undef OBJECT_FORMAT_COFF
82 /* Assembler format: exception region output. */
84 /* All configurations that don't use elf must be explicit about not using
85 dwarf unwind information. */
86 #ifdef INCOMING_RETURN_ADDR_RTX
87 #undef DWARF2_UNWIND_INFO
88 #define DWARF2_UNWIND_INFO 0
91 /* Assembler format: file framework. */
93 /* Taken from alpha/osf.h. This used to be common to all alpha
94 configurations, but elf has departed from it.
95 Check alpha/alpha.h, alpha/osf.h for it when egcs is upgraded. */
96 #ifndef ASM_FILE_START
97 #define ASM_FILE_START(FILE) \
99 alpha_write_verstamp (FILE); \
100 fprintf (FILE, "\t.set noreorder\n"); \
101 fprintf (FILE, "\t.set volatile\n"); \
102 fprintf (FILE, "\t.set noat\n"); \
103 if (TARGET_SUPPORT_ARCH) \
104 fprintf (FILE, "\t.arch %s\n", \
105 TARGET_CPU_EV6 ? "ev6" \
107 ? (TARGET_MAX ? "pca56" : TARGET_BWX ? "ev56" : "ev5") \
110 ASM_OUTPUT_SOURCE_FILENAME (FILE, main_input_filename); \
114 /* Assembler format: label output. */
116 #define ASM_OUTPUT_WEAK_ALIAS(FILE,NAME,VALUE) \
118 fputs ("\t.weakext\t", FILE); \
119 assemble_name (FILE, NAME); \
122 fputs (" , ", FILE); \
123 assemble_name (FILE, VALUE); \
125 fputc ('\n', FILE); \