1 /* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
2 Copyright 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
3 2009, 2010, 2011 Free Software Foundation, Inc.
4 Contributed by David S. Miller (davem@caip.rutgers.edu)
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #define TARGET_OS_CPP_BUILTINS() \
25 GNU_USER_TARGET_OS_CPP_BUILTINS(); \
27 builtin_define ("_LONGLONG"); \
29 && TARGET_LONG_DOUBLE_128) \
30 builtin_define ("__LONG_DOUBLE_128__"); \
34 /* On Linux, the combination sparc64-* --with-cpu=v8 is supported and
35 selects a 32-bit compiler. */
36 #if defined(TARGET_64BIT_DEFAULT) && TARGET_CPU_DEFAULT >= TARGET_CPU_v9
38 #define TARGET_DEFAULT \
39 (MASK_V9 + MASK_PTR64 + MASK_64BIT + MASK_STACK_BIAS + \
40 MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
43 /* This must be v9a not just v9 because by default we enable
45 #undef ASM_CPU64_DEFAULT_SPEC
46 #define ASM_CPU64_DEFAULT_SPEC "-Av9a"
48 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
49 the GNU/Linux magical crtend.o file (see crtstuff.c) which
50 provides part of the support for getting C++ file-scope static
51 object constructed before entering `main', followed by a normal
52 GNU/Linux "finalizer" file, `crtn.o'. */
55 #define ENDFILE_SPEC \
56 "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\
57 %{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
59 /* The default code model. */
60 #undef SPARC_DEFAULT_CMODEL
61 #define SPARC_DEFAULT_CMODEL CM_MEDLOW
64 #define WCHAR_TYPE "int"
66 #undef WCHAR_TYPE_SIZE
67 #define WCHAR_TYPE_SIZE 32
69 /* Define for support of TFmode long double.
70 SPARC ABI says that long double is 4 words. */
71 #undef LONG_DOUBLE_TYPE_SIZE
72 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
74 /* Define this to set long double type size to use in libgcc2.c, which can
75 not depend on target_flags. */
76 #if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
77 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
79 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
82 #undef CPP_SUBTARGET_SPEC
83 #define CPP_SUBTARGET_SPEC "\
84 %{posix:-D_POSIX_SOURCE} \
85 %{pthread:-D_REENTRANT} \
88 /* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
89 for the special GCC options -static and -shared, which allow us to
90 link things in one of these three modes by applying the appropriate
91 combinations of options at link-time.
93 When the -shared link option is used a final link is not being
96 #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
97 #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
101 #undef SUBTARGET_EXTRA_SPECS
102 #define SUBTARGET_EXTRA_SPECS \
103 { "link_arch32", LINK_ARCH32_SPEC }, \
104 { "link_arch64", LINK_ARCH64_SPEC }, \
105 { "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
106 { "link_arch", LINK_ARCH_SPEC },
108 #define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,%R/usr/lib %{shared:-shared} \
111 %{rdynamic:-export-dynamic} \
112 -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "} \
116 #define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \
119 %{rdynamic:-export-dynamic} \
120 -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \
124 #define LINK_ARCH_SPEC "\
125 %{m32:%(link_arch32)} \
126 %{m64:%(link_arch64)} \
127 %{!m32:%{!m64:%(link_arch_default)}} \
130 #define LINK_ARCH_DEFAULT_SPEC \
131 (DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
136 %{!mno-relax:%{!r:-relax}} \
139 /* -mcpu=native handling only makes sense with compiler running on
141 #if defined(__sparc__) && defined(__linux__)
142 extern const char *host_detect_local_cpu (int argc, const char **argv);
143 # define EXTRA_SPEC_FUNCTIONS \
144 { "local_cpu_detect", host_detect_local_cpu },
146 # define MCPU_MTUNE_NATIVE_SPECS \
147 " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}" \
148 " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
150 # define MCPU_MTUNE_NATIVE_SPECS ""
153 #define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS
157 #define CC1_SPEC "%{profile:-p} \
158 %{m32:%{m64:%emay not use both -m32 and -m64}} \
159 %{m64:-mptr64 -mstack-bias -mlong-double-128 \
160 %{!mcpu*:-mcpu=ultrasparc} \
161 %{!mno-vis:%{!mcpu=v9:-mvis}}} \
164 #define CC1_SPEC "%{profile:-p} \
165 %{m32:%{m64:%emay not use both -m32 and -m64}} \
166 %{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
167 %{!mcpu*:-mcpu=cypress}} \
168 %{mv8plus:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
169 %{!mcpu*:-mcpu=v9}} \
170 %{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
171 %{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \
175 /* Support for a compile-time default CPU, et cetera. The rules are:
176 --with-cpu is ignored if -mcpu is specified.
177 --with-tune is ignored if -mtune is specified.
178 --with-float is ignored if -mhard-float, -msoft-float, -mfpu, or -mno-fpu
180 In the SPARC_BI_ARCH compiler we cannot pass %{!mcpu=*:-mcpu=%(VALUE)}
181 here, otherwise say -mcpu=v7 would be passed even when -m64.
182 CC1_SPEC above takes care of this instead. */
183 #undef OPTION_DEFAULT_SPECS
185 #define OPTION_DEFAULT_SPECS \
186 {"cpu", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
187 {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
188 {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }
190 #define OPTION_DEFAULT_SPECS \
191 {"cpu", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
192 {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
193 {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }
197 #define MULTILIB_DEFAULTS { "m32" }
199 #define MULTILIB_DEFAULTS { "m64" }
202 #else /* !SPARC_BI_ARCH */
205 #define LINK_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \
208 %{rdynamic:-export-dynamic} \
209 -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \
211 %{!mno-relax:%{!r:-relax}} \
214 #endif /* !SPARC_BI_ARCH */
216 /* It's safe to pass -s always, even if -g is not used. */
220 %{fpic|fPIC|fpie|fPIE:-K PIC} \
221 %{!.c:%{findirect-dispatch:-K PIC}} \
222 %(asm_cpu) %(asm_arch) %(asm_relax)"
224 #undef ASM_OUTPUT_ALIGNED_LOCAL
225 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
227 fputs ("\t.local\t", (FILE)); \
228 assemble_name ((FILE), (NAME)); \
229 putc ('\n', (FILE)); \
230 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
234 #define COMMON_ASM_OP "\t.common\t"
236 #undef LOCAL_LABEL_PREFIX
237 #define LOCAL_LABEL_PREFIX "."
239 /* This is how to store into the string LABEL
240 the symbol_ref name of an internal numbered label where
241 PREFIX is the class of label and NUM is the number within the class.
242 This is suitable for output with `assemble_name'. */
244 #undef ASM_GENERATE_INTERNAL_LABEL
245 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
246 sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM))
250 /* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets.
251 Obviously the Dwarf2 folks haven't tried to actually build systems
252 with their spec. On a 64-bit system, only 64-bit relocs become
253 RELATIVE relocations. */
255 /* #define DWARF_OFFSET_SIZE PTR_SIZE */
257 #undef DITF_CONVERSION_LIBFUNCS
258 #define DITF_CONVERSION_LIBFUNCS 1
261 #undef TARGET_SUN_TLS
262 #undef TARGET_GNU_TLS
263 #define TARGET_SUN_TLS 0
264 #define TARGET_GNU_TLS 1
267 /* We use GNU ld so undefine this so that attribute((init_priority)) works. */
268 #undef CTORS_SECTION_ASM_OP
269 #undef DTORS_SECTION_ASM_OP
271 /* Static stack checking is supported by means of probes. */
272 #define STACK_CHECK_STATIC_BUILTIN 1
274 /* Linux currently uses RMO in uniprocessor mode, which is equivalent to
275 TMO, and TMO in multiprocessor mode. But they reserve the right to
276 change their minds. */
277 #undef SPARC_RELAXED_ORDERING
278 #define SPARC_RELAXED_ORDERING true
280 #undef NEED_INDICATE_EXEC_STACK
281 #define NEED_INDICATE_EXEC_STACK 1
283 #ifdef TARGET_LIBC_PROVIDES_SSP
284 /* sparc glibc provides __stack_chk_guard in [%g7 + 0x14],
285 sparc64 glibc provides it at [%g7 + 0x28]. */
286 #define TARGET_THREAD_SSP_OFFSET (TARGET_ARCH64 ? 0x28 : 0x14)
289 /* Define if long doubles should be mangled as 'g'. */
290 #define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
292 /* We use glibc _mcount for profiling. */
293 #undef NO_PROFILE_COUNTERS
294 #define NO_PROFILE_COUNTERS 1