1 /* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
2 Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
3 Contributed by David S. Miller (davem@caip.rutgers.edu)
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
24 #define LINUX_DEFAULT_ELF
26 /* Don't assume anything about the header files. */
27 #define NO_IMPLICIT_EXTERN_C
29 #undef DEFAULT_VTABLE_THUNKS
30 #define DEFAULT_VTABLE_THUNKS 1
32 #include <sparc/sysv4.h>
35 #undef MD_STARTFILE_PREFIX
37 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
38 /* A 64 bit v9 compiler with stack-bias,
39 in a Medium/Low code model environment. */
42 #define TARGET_DEFAULT \
43 (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
44 + MASK_STACK_BIAS + MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU + MASK_LONG_DOUBLE_128)
47 /* Output at beginning of assembler file. */
48 /* The .file command should always begin the output. */
50 #define ASM_FILE_START(FILE) \
52 output_file_directive (FILE, main_input_filename); \
53 fprintf (FILE, "\t.version\t\"01.01\"\n"); \
56 #undef ASM_CPU_DEFAULT_SPEC
57 #define ASM_CPU_DEFAULT_SPEC "-Av9a"
61 #undef CPP_ARCH32_SPEC
62 #define CPP_ARCH32_SPEC "%{mlong-double-128:-D__LONG_DOUBLE_128__} \
63 -D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int \
64 -D__GCC_NEW_VARARGS__ -Acpu(sparc) -Amachine(sparc)"
68 /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
69 the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
70 provides part of the support for getting C++ file-scope static
71 object constructed before entering `main'. */
75 #define STARTFILE_SPEC32 \
77 %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
78 crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
80 #define STARTFILE_SPEC64 \
82 %{pg:/usr/lib64/gcrt1.o%s} %{!pg:%{p:/usr/lib64/gcrt1.o%s} %{!p:/usr/lib64/crt1.o%s}}}\
83 /usr/lib64/crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
88 #define STARTFILE_SPEC "\
89 %{m32:" STARTFILE_SPEC32 "} \
90 %{m64:" STARTFILE_SPEC64 "} \
91 %{!m32:%{!m64:" STARTFILE_SPEC32 "}}"
93 #define STARTFILE_SPEC "\
94 %{m32:" STARTFILE_SPEC32 "} \
95 %{m64:" STARTFILE_SPEC64 "} \
96 %{!m32:%{!m64:" STARTFILE_SPEC64 "}}"
101 #define STARTFILE_SPEC STARTFILE_SPEC64
105 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
106 the GNU/Linux magical crtend.o file (see crtstuff.c) which
107 provides part of the support for getting C++ file-scope static
108 object constructed before entering `main', followed by a normal
109 GNU/Linux "finalizer" file, `crtn.o'. */
113 #define ENDFILE_SPEC32 \
114 "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
116 #define ENDFILE_SPEC64 \
117 "%{!shared:crtend.o%s} %{shared:crtendS.o%s} /usr/lib64/crtn.o%s"
122 #define ENDFILE_SPEC "\
123 %{m32:" ENDFILE_SPEC32 "} \
124 %{m64:" ENDFILE_SPEC64 "} \
125 %{!m32:%{!m64:" ENDFILE_SPEC32 "}}"
127 #define ENDFILE_SPEC "\
128 %{m32:" ENDFILE_SPEC32 "} \
129 %{m64:" ENDFILE_SPEC64 "} \
130 %{!m32:%{!m64:" ENDFILE_SPEC64 "}}"
135 #define ENDFILE_SPEC ENDFILE_SPEC64
139 #undef TARGET_VERSION
140 #define TARGET_VERSION fprintf (stderr, " (sparc64 GNU/Linux with ELF)");
142 /* The default code model. */
143 #undef SPARC_DEFAULT_CMODEL
144 #define SPARC_DEFAULT_CMODEL CM_MEDLOW
146 #undef SUBTARGET_SWITCHES
147 #define SUBTARGET_SWITCHES \
148 {"long-double-64", -MASK_LONG_DOUBLE_128, "Use 64 bit long doubles" }, \
149 {"long-double-128", MASK_LONG_DOUBLE_128, "Use 128 bit long doubles" },
152 #define WCHAR_TYPE "int"
154 #undef WCHAR_TYPE_SIZE
155 #define WCHAR_TYPE_SIZE 32
157 #undef MAX_WCHAR_TYPE_SIZE
159 /* Define for support of TFmode long double and REAL_ARITHMETIC.
160 Sparc ABI says that long double is 4 words. */
161 #undef LONG_DOUBLE_TYPE_SIZE
162 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
164 /* Constant which presents upper bound of the above value. */
165 #undef MAX_LONG_DOUBLE_TYPE_SIZE
166 #define MAX_LONG_DOUBLE_TYPE_SIZE 128
168 /* Define this to set long double type size to use in libgcc2.c, which can
169 not depend on target_flags. */
170 #if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
171 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
173 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
176 #undef CPP_PREDEFINES
177 #define CPP_PREDEFINES "-D__ELF__ -Dunix -D_LONGLONG -D__sparc__ -Dlinux -Asystem(unix) -Asystem(posix)"
179 #undef CPP_SUBTARGET_SPEC
180 #define CPP_SUBTARGET_SPEC "\
181 %{fPIC:-D__PIC__ -D__pic__} \
182 %{fpic:-D__PIC__ -D__pic__} \
183 %{posix:-D_POSIX_SOURCE} \
184 %{pthread:-D_REENTRANT} \
190 %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
191 %{profile:-lc_p} %{!profile: -lc}}"
193 /* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
194 for the special GCC options -static and -shared, which allow us to
195 link things in one of these three modes by applying the appropriate
196 combinations of options at link-time. We like to support here for
197 as many of the other GNU linker options as possible. But I don't
198 have the time to search for those flags. I am sure how to add
199 support for -soname shared_object_name. H.J.
201 I took out %{v:%{!V:-V}}. It is too much :-(. They can use
204 When the -shared link option is used a final link is not being
207 /* If ELF is the default format, we should not use /lib/elf. */
211 #undef SUBTARGET_EXTRA_SPECS
212 #define SUBTARGET_EXTRA_SPECS \
213 { "link_arch32", LINK_ARCH32_SPEC }, \
214 { "link_arch64", LINK_ARCH64_SPEC }, \
215 { "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
216 { "link_arch", LINK_ARCH_SPEC },
218 #define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
222 %{rdynamic:-export-dynamic} \
223 %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
224 %{static:-static}}} \
227 #define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
231 %{rdynamic:-export-dynamic} \
232 %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
233 %{static:-static}}} \
236 #define LINK_ARCH_SPEC "\
237 %{m32:%(link_arch32)} \
238 %{m64:%(link_arch64)} \
239 %{!m32:%{!m64:%(link_arch_default)}} \
242 #define LINK_ARCH_DEFAULT_SPEC \
243 (DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
248 %{mlittle-endian:-EL} \
254 %{sun4:} %{target:} \
255 %{mcypress:-mcpu=cypress} \
256 %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
257 %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
258 %{m64:-mptr64 -mstack-bias -mlong-double-128 \
259 %{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=ultrasparc}}}}}}} \
260 %{!mno-vis:%{!mcpu=v9:-mvis}}} \
261 %{!m64:%{g*:%{!gs*:%{!gd*:%{!gx*:%{!gc*:-gstabs+}}}}}} \
265 %{sun4:} %{target:} \
266 %{mcypress:-mcpu=cypress} \
267 %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
268 %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
269 %{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
270 %{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=cypress}}}}}}} \
271 %{g*:%{!gs*:%{!gd*:%{!gx*:%{!gc*:-gstabs+}}}}}} \
272 %{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
273 %{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \
278 #define MULTILIB_DEFAULTS { "m32" }
280 #define MULTILIB_DEFAULTS { "m64" }
283 #else /* !SPARC_BI_ARCH */
286 #define LINK_ARCH_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
290 %{rdynamic:-export-dynamic} \
291 %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
292 %{static:-static}}} \
293 %{mlittle-endian:-EL} \
296 #endif /* !SPARC_BI_ARCH */
298 /* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
299 It's safe to pass -s always, even if -g is not used. */
309 -s %{fpic:-K PIC} %{fPIC:-K PIC} \
310 %{mlittle-endian:-EL} \
311 %(asm_cpu) %(asm_arch) \
314 /* Same as sparc.h */
315 #undef DBX_REGISTER_NUMBER
316 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
318 /* System V Release 4 uses DWARF debugging info. Buf DWARF1 doesn't do
319 64-bit anything, so we use DWARF2. */
321 #undef DWARF2_DEBUGGING_INFO
322 #undef DWARF_DEBUGGING_INFO
323 #undef DBX_DEBUGGING_INFO
324 #define DWARF2_DEBUGGING_INFO
325 #define DBX_DEBUGGING_INFO
327 #undef PREFERRED_DEBUGGING_TYPE
328 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
330 #undef ASM_OUTPUT_ALIGNED_LOCAL
331 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
333 fputs ("\t.local\t", (FILE)); \
334 assemble_name ((FILE), (NAME)); \
335 putc ('\n', (FILE)); \
336 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
340 #define COMMON_ASM_OP "\t.common"
342 /* This is how to output a definition of an internal numbered label where
343 PREFIX is the class of label and NUM is the number within the class. */
345 #undef ASM_OUTPUT_INTERNAL_LABEL
346 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
347 fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)
349 /* This is how to output a reference to an internal numbered label where
350 PREFIX is the class of label and NUM is the number within the class. */
352 #undef ASM_OUTPUT_INTERNAL_LABELREF
353 #define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
354 fprintf (FILE, ".L%s%d", PREFIX, NUM)
356 /* This is how to store into the string LABEL
357 the symbol_ref name of an internal numbered label where
358 PREFIX is the class of label and NUM is the number within the class.
359 This is suitable for output with `assemble_name'. */
361 #undef ASM_GENERATE_INTERNAL_LABEL
362 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
363 sprintf (LABEL, "*.L%s%d", PREFIX, NUM)
365 /* Define the names of various pseudo-ops used by the Sparc/svr4 assembler.
366 ??? If ints are 64 bits then UNALIGNED_INT_ASM_OP (defined elsewhere) is
367 misnamed. These should all refer to explicit sizes (half/word/xword?),
368 anything other than short/int/long/etc. */
370 #define UNALIGNED_DOUBLE_INT_ASM_OP ".uaxword"
374 /* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets.
375 Obviously the Dwarf2 folks havn't tried to actually build systems
376 with their spec. On a 64-bit system, only 64-bit relocs become
377 RELATIVE relocations. */
379 /* #define DWARF_OFFSET_SIZE PTR_SIZE */
382 /* Override MACHINE_STATE_{SAVE,RESTORE} because we have special
383 traps available which can get and set the condition codes
385 #undef MACHINE_STATE_SAVE
386 #define MACHINE_STATE_SAVE(ID) \
387 unsigned long int ms_flags, ms_saveret; \
388 asm volatile("ta 0x20\n\t" \
391 : "=r" (ms_flags), "=r" (ms_saveret));
393 #undef MACHINE_STATE_RESTORE
394 #define MACHINE_STATE_RESTORE(ID) \
395 asm volatile("mov %0, %%g1\n\t" \
399 : "r" (ms_flags), "r" (ms_saveret));
402 /* A C statement (sans semicolon) to output an element in the table of
403 global constructors. */
404 #undef ASM_OUTPUT_CONSTRUCTOR
405 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
408 fprintf (FILE, "\t%s\t ", TARGET_ARCH64 ? ASM_LONGLONG : INT_ASM_OP); \
409 assemble_name (FILE, NAME); \
410 fprintf (FILE, "\n"); \
413 /* A C statement (sans semicolon) to output an element in the table of
414 global destructors. */
415 #undef ASM_OUTPUT_DESTRUCTOR
416 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
419 fprintf (FILE, "\t%s\t ", TARGET_ARCH64 ? ASM_LONGLONG : INT_ASM_OP); \
420 assemble_name (FILE, NAME); \
421 fprintf (FILE, "\n"); \