1/* Definitions of target machine for GCC, for ELF on NetBSD/sparc
2   and NetBSD/sparc64.
3   Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
4   Contributed by Matthew Green (mrg@eterna.com.au).
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#define TARGET_OS_CPP_BUILTINS()			\
24  do							\
25    {							\
26      NETBSD_OS_CPP_BUILTINS_ELF();			\
27      if (TARGET_ARCH64)				\
28	{						\
29	  builtin_define ("__sparc64__");		\
30	  builtin_define ("__sparc_v9__");		\
31	  builtin_define ("__sparcv9");			\
32	}						\
33      else						\
34	builtin_define ("__sparc");			\
35      builtin_define ("__sparc__");			\
36    }							\
37  while (0)
38
39/* Make sure these are undefined.  */
40#undef MD_EXEC_PREFIX
41#undef MD_STARTFILE_PREFIX
42
43/* CPP defines used by all NetBSD targets.  */
44#undef CPP_SUBTARGET_SPEC
45#define CPP_SUBTARGET_SPEC "%(netbsd_cpp_spec)"
46
47/* SIZE_TYPE and PTRDIFF_TYPE are wrong from sparc/sparc.h.  */
48#undef SIZE_TYPE
49#define SIZE_TYPE "long unsigned int"
50
51#undef PTRDIFF_TYPE
52#define PTRDIFF_TYPE "long int"
53
54/* This is the char to use for continuation (in case we need to turn
55   continuation back on).  */
56#undef DBX_CONTIN_CHAR
57#define DBX_CONTIN_CHAR '?'
58
59#undef  LOCAL_LABEL_PREFIX
60#define LOCAL_LABEL_PREFIX  "."
61
62/* This is how to store into the string LABEL
63   the symbol_ref name of an internal numbered label where
64   PREFIX is the class of label and NUM is the number within the class.
65   This is suitable for output with `assemble_name'.  */
66
67#undef  ASM_GENERATE_INTERNAL_LABEL
68#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)	\
69  sprintf ((LABEL), "*.L%s%ld", (PREFIX), (long)(NUM))
70
71#undef USER_LABEL_PREFIX
72#define USER_LABEL_PREFIX ""
73
74#undef ASM_SPEC
75#define ASM_SPEC "%{fpic|fPIC|fpie|fPIE:-K PIC} %{V} %{v:%{!V:-V}} \
76%{mlittle-endian:-EL} \
77%(asm_cpu) %(asm_arch) %(asm_relax)"
78
79#undef STDC_0_IN_SYSTEM_HEADERS
80
81/* Attempt to enable execute permissions on the stack.  */
82#define ENABLE_EXECUTE_STACK NETBSD_ENABLE_EXECUTE_STACK
83
84#undef TARGET_VERSION
85#define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME);
86
87/* Below here exists the merged NetBSD/sparc & NetBSD/sparc64 compiler
88   description, allowing one to build 32 bit or 64 bit applications
89   on either.  We define the sparc & sparc64 versions of things,
90   occasionally a neutral version (should be the same as "netbsd-elf.h")
91   and then based on SPARC_BI_ARCH, DEFAULT_ARCH32_P, and TARGET_CPU_DEFAULT,
92   we choose the correct version.  */
93
94/* We use the default NetBSD ELF STARTFILE_SPEC and ENDFILE_SPEC
95   definitions, even for the SPARC_BI_ARCH compiler, because NetBSD does
96   not have a default place to find these libraries..  */
97
98/* Name the port(s).  */
99#define TARGET_NAME64     "NetBSD/sparc64 ELF"
100#define TARGET_NAME32     "NetBSD/sparc ELF"
101
102/* TARGET_CPU_DEFAULT is set in Makefile.in.  We test for 64-bit default
103   platform here.  */
104
105#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
106 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
107/* A 64 bit v9 compiler with stack-bias,
108   in a Medium/Low code model environment.  */
109
110#undef TARGET_DEFAULT
111#define TARGET_DEFAULT \
112  (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
113   + MASK_STACK_BIAS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
114
115#undef SPARC_DEFAULT_CMODEL
116#define SPARC_DEFAULT_CMODEL CM_MEDANY
117
118#endif
119
120/* CC1_SPEC for NetBSD/sparc.  */
121#define CC1_SPEC32 \
122 "%{sun4:} %{target:} \
123  %{mcypress:-mcpu=cypress} \
124  %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
125  %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
126  %{m32:%{m64:%emay not use both -m32 and -m64}} \
127  %{m64: \
128    -mptr64 -mstack-bias -mno-v8plus -mlong-double-128 \
129    %{!mcpu*: \
130      %{!mcypress: \
131        %{!msparclite: \
132	  %{!mf930: \
133	    %{!mf934: \
134	      %{!mv8*: \
135	        %{!msupersparc:-mcpu=ultrasparc}}}}}}} \
136    %{!mno-vis:%{!mcpu=v9:-mvis}} \
137    %{p:-mcmodel=medlow} \
138    %{pg:-mcmodel=medlow}}"
139
140#define CC1_SPEC64 \
141 "%{sun4:} %{target:} \
142  %{mcypress:-mcpu=cypress} \
143  %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
144  %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
145  %{m32:%{m64:%emay not use both -m32 and -m64}} \
146  %{m32: \
147    -mptr32 -mno-stack-bias \
148    %{!mlong-double-128:-mlong-double-64} \
149    %{!mcpu*: \
150      %{!mcypress: \
151	%{!msparclite: \
152	  %{!mf930: \
153	    %{!mf934: \
154	      %{!mv8*: \
155		%{!msupersparc:-mcpu=cypress}}}}}}}} \
156  %{!m32: \
157    %{p:-mcmodel=medlow} \
158    %{pg:-mcmodel=medlow}}"
159
160/* Make sure we use the right output format.  Pick a default and then
161   make sure -m32/-m64 switch to the right one.  */
162
163#define LINK_ARCH32_SPEC "-m elf32_sparc"
164
165#define LINK_ARCH64_SPEC "-m elf64_sparc"
166
167#define LINK_ARCH_SPEC \
168 "%{m32:%(link_arch32)} \
169  %{m64:%(link_arch64)} \
170  %{!m32:%{!m64:%(link_arch_default)}}"
171
172#undef LINK_SPEC
173#define LINK_SPEC \
174 "%(link_arch) \
175  %{!mno-relax:%{!r:-relax}} \
176  %(netbsd_link_spec)"
177
178#define NETBSD_ENTRY_POINT "__start"
179
180#if DEFAULT_ARCH32_P
181#define LINK_ARCH_DEFAULT_SPEC LINK_ARCH32_SPEC
182#else
183#define LINK_ARCH_DEFAULT_SPEC LINK_ARCH64_SPEC
184#endif
185
186/* What extra spec entries do we need?  */
187#undef SUBTARGET_EXTRA_SPECS
188#define SUBTARGET_EXTRA_SPECS \
189  { "link_arch32",		LINK_ARCH32_SPEC }, \
190  { "link_arch64",		LINK_ARCH64_SPEC }, \
191  { "link_arch_default",	LINK_ARCH_DEFAULT_SPEC }, \
192  { "link_arch",		LINK_ARCH_SPEC }, \
193  { "netbsd_cpp_spec",		NETBSD_CPP_SPEC }, \
194  { "netbsd_link_spec",		NETBSD_LINK_SPEC_ELF }, \
195  { "netbsd_entry_point",	NETBSD_ENTRY_POINT },
196
197
198/* Build a compiler that supports -m32 and -m64?  */
199
200#ifdef SPARC_BI_ARCH
201
202#undef LONG_DOUBLE_TYPE_SIZE
203#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
204
205#if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
206#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
207#else
208#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
209#endif
210
211#undef  CC1_SPEC
212#if DEFAULT_ARCH32_P
213#define CC1_SPEC CC1_SPEC32
214#else
215#define CC1_SPEC CC1_SPEC64
216#endif
217
218#if DEFAULT_ARCH32_P
219#define MULTILIB_DEFAULTS { "m32" }
220#else
221#define MULTILIB_DEFAULTS { "m64" }
222#endif
223
224/* Name the port.  */
225#undef TARGET_NAME
226#define TARGET_NAME     (DEFAULT_ARCH32_P ? TARGET_NAME32 : TARGET_NAME64)
227
228#else	/* SPARC_BI_ARCH */
229
230#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
231 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
232
233#undef LONG_DOUBLE_TYPE_SIZE
234#define LONG_DOUBLE_TYPE_SIZE 128
235
236#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
237#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
238
239#undef  CC1_SPEC
240#define CC1_SPEC CC1_SPEC64
241
242#undef TARGET_NAME
243#define TARGET_NAME     TARGET_NAME64
244
245#else	/* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
246	|| TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */
247
248/* A 32-bit only compiler.  NetBSD don't support 128 bit `long double'
249   for 32-bit code, unlike Solaris.  */
250
251#undef LONG_DOUBLE_TYPE_SIZE
252#define LONG_DOUBLE_TYPE_SIZE 64
253
254#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
255#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
256
257#undef  CC1_SPEC
258#define CC1_SPEC CC1_SPEC32
259
260#undef TARGET_NAME
261#define TARGET_NAME     TARGET_NAME32
262
263#endif	/* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
264	|| TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */
265
266#endif	/* SPARC_BI_ARCH */
267
268/* We use GNU ld so undefine this so that attribute((init_priority)) works.  */
269#undef CTORS_SECTION_ASM_OP
270#undef DTORS_SECTION_ASM_OP
271