1/* Definitions of target machine for GCC, for SPARC64, ELF.
2   Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2004, 2005
3   Free Software Foundation, Inc.
4   Contributed by Doug Evans, dje@cygnus.com.
5
6This file is part of GCC.
7
8GCC is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2, or (at your option)
11any later version.
12
13GCC is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with GCC; see the file COPYING.  If not, write to
20the Free Software Foundation, 51 Franklin Street, Fifth Floor,
21Boston, MA 02110-1301, USA.  */
22
23#undef TARGET_VERSION
24#define TARGET_VERSION fprintf (stderr, " (sparc64-elf)")
25
26/* A 64 bit v9 compiler in a Medium/Anywhere code model environment.  */
27#undef TARGET_DEFAULT
28#define TARGET_DEFAULT \
29(MASK_V9 + MASK_PTR64 + MASK_64BIT + MASK_HARD_QUAD \
30 + MASK_APP_REGS + MASK_FPU + MASK_STACK_BIAS + MASK_LONG_DOUBLE_128)
31
32#undef SPARC_DEFAULT_CMODEL
33#define SPARC_DEFAULT_CMODEL CM_EMBMEDANY
34
35/* Don't assume anything about the header files.  */
36#define NO_IMPLICIT_EXTERN_C
37
38/* __svr4__ is used by the C library (FIXME) */
39#undef CPP_SUBTARGET_SPEC
40#define CPP_SUBTARGET_SPEC "-D__svr4__"
41
42#undef MD_EXEC_PREFIX
43#undef MD_STARTFILE_PREFIX
44
45#undef ASM_SPEC
46#define ASM_SPEC "\
47%{v:-V} -s %{fpic|fPIC|fpie|fPIE:-K PIC} \
48%{mlittle-endian:-EL} \
49%(asm_cpu) %(asm_arch) \
50"
51
52/* This is taken from sol2.h.  */
53#undef LINK_SPEC
54#define LINK_SPEC "\
55%{v:-V} \
56%{mlittle-endian:-EL} \
57"
58
59/* We need something a little simpler for the embedded environment.
60   Profiling doesn't really work yet so we just copy the default.  */
61#undef STARTFILE_SPEC
62#define STARTFILE_SPEC "\
63%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}} \
64crtbegin.o%s \
65"
66
67#undef ENDFILE_SPEC
68#define ENDFILE_SPEC \
69  "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
70   crtend.o%s"
71
72/* Use the default (for now).  */
73#undef LIB_SPEC
74
75/* This defines which switch letters take arguments.
76   It is as in svr4.h but with -R added.  */
77#undef SWITCH_TAKES_ARG
78#define SWITCH_TAKES_ARG(CHAR) \
79  (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
80   || (CHAR) == 'R' \
81   || (CHAR) == 'h' \
82   || (CHAR) == 'z')
83
84#undef BYTES_BIG_ENDIAN
85#define BYTES_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
86
87#undef WORDS_BIG_ENDIAN
88#define WORDS_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
89
90#undef  LOCAL_LABEL_PREFIX
91#define LOCAL_LABEL_PREFIX  "."
92
93/* This is how to store into the string LABEL
94   the symbol_ref name of an internal numbered label where
95   PREFIX is the class of label and NUM is the number within the class.
96   This is suitable for output with `assemble_name'.  */
97
98#undef  ASM_GENERATE_INTERNAL_LABEL
99#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)	\
100  sprintf ((LABEL), "*.L%s%ld", (PREFIX), (long)(NUM))
101
102/* ??? This should be 32 bits for v9 but what can we do?  */
103#undef WCHAR_TYPE
104#define WCHAR_TYPE "short unsigned int"
105
106#undef WCHAR_TYPE_SIZE
107#define WCHAR_TYPE_SIZE 16
108
109#undef LONG_DOUBLE_TYPE_SIZE
110#define LONG_DOUBLE_TYPE_SIZE 128
111
112/* The medium/anywhere code model practically requires us to put jump tables
113   in the text section as gcc is unable to distinguish LABEL_REF's of jump
114   tables from other label refs (when we need to).  */
115/* But we now defer the tables to the end of the function, so we make
116   this 0 to not confuse the branch shortening code.  */
117#undef JUMP_TABLES_IN_TEXT_SECTION
118#define JUMP_TABLES_IN_TEXT_SECTION 0
119