1 /* Definitions for SPARC running Linux-based GNU systems with ELF.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
3 Contributed by Eddie C. Dost (ecd@skynet.be)
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. */
22 #define LINUX_DEFAULT_ELF
24 /* Don't assume anything about the header files. */
25 #define NO_IMPLICIT_EXTERN_C
27 /* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is.
28 For now, we play safe. It may change later. */
31 #undef MULTIBYTE_CHARS
32 #define MULTIBYTE_CHARS 1
35 /* Use stabs instead of DWARF debug format. */
36 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
39 #undef MD_STARTFILE_PREFIX
41 /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
42 the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
43 provides part of the support for getting C++ file-scope static
44 object constructed before entering `main'. */
48 #define STARTFILE_SPEC \
50 %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
51 crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
54 %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
55 crti.o%s %{static:crtbeginT.o%s}\
56 %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
59 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
60 the GNU/Linux magical crtend.o file (see crtstuff.c) which
61 provides part of the support for getting C++ file-scope static
62 object constructed before entering `main', followed by a normal
63 GNU/Linux "finalizer" file, `crtn.o'. */
66 #define ENDFILE_SPEC \
67 "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
69 /* This is for -profile to use -lc_p instead of -lc. */
71 #define CC1_SPEC "%{profile:-p} \
73 %{mcypress:-mcpu=cypress} \
74 %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
75 %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
78 /* The GNU C++ standard library requires that these macros be defined. */
79 #undef CPLUSPLUS_CPP_SPEC
80 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
83 #define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)");
85 #undef SUBTARGET_SWITCHES
86 #define SUBTARGET_SWITCHES \
87 {"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") }, \
88 {"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },
91 #define SIZE_TYPE "unsigned int"
94 #define PTRDIFF_TYPE "int"
97 #define WCHAR_TYPE "int"
99 #undef WCHAR_TYPE_SIZE
100 #define WCHAR_TYPE_SIZE 32
102 #undef MAX_WCHAR_TYPE_SIZE
104 #undef CPP_PREDEFINES
105 #define CPP_PREDEFINES "-D__ELF__ -Dunix -D__sparc__ -Dlinux -Asystem=unix -Asystem=posix"
107 #undef CPP_SUBTARGET_SPEC
109 #define CPP_SUBTARGET_SPEC \
110 "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
111 %{mlong-double-128:-D__LONG_DOUBLE_128__}"
113 #define CPP_SUBTARGET_SPEC \
114 "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
115 %{pthread:-D_REENTRANT} %{mlong-double-128:-D__LONG_DOUBLE_128__}"
119 /* We no longer link with libc_p.a or libg.a by default. If you
120 want to profile or debug the GNU/Linux C library, please add
121 -lc_p or -ggdb to LDFLAGS at the link time, respectively. */
125 "%{!shared: %{p:-lgmon} %{pg:-lgmon} %{profile:-lgmon -lc_p} \
126 %{!profile:%{!ggdb:-lc} %{ggdb:-lg}}}"
130 %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
131 %{profile:-lc_p} %{!profile: -lc}}"
136 %{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \
137 %{!p:%{!pg:%{!g*:-lc} %{g*:-lg}}}}"
140 /* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
141 for the special GCC options -static and -shared, which allow us to
142 link things in one of these three modes by applying the appropriate
143 combinations of options at link-time. We like to support here for
144 as many of the other GNU linker options as possible. But I don't
145 have the time to search for those flags. I am sure how to add
146 support for -soname shared_object_name. H.J.
148 I took out %{v:%{!V:-V}}. It is too much :-(. They can use
151 When the -shared link option is used a final link is not being
154 /* If ELF is the default format, we should not use /lib/elf. */
158 #ifndef LINUX_DEFAULT_ELF
159 #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
163 %{rdynamic:-export-dynamic} \
164 %{!dynamic-linker:-dynamic-linker /lib/elf/ld-linux.so.1} \
165 %{!rpath:-rpath /lib/elf/}} %{static:-static}}}"
167 #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
171 %{rdynamic:-export-dynamic} \
172 %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.1}} \
176 #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
177 %{!mno-relax:%{!r:-relax}} \
181 %{rdynamic:-export-dynamic} \
182 %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
186 /* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
187 It's safe to pass -s always, even if -g is not used. */
190 "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s %{fpic:-K PIC} \
191 %{fPIC:-K PIC} %(asm_relax)"
193 /* Same as sparc.h */
194 #undef DBX_REGISTER_NUMBER
195 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
197 /* We use stabs-in-elf for debugging, because that is what the native
198 toolchain uses. XXX */
199 #undef PREFERRED_DEBUGGING_TYPE
200 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
202 #undef ASM_OUTPUT_ALIGNED_LOCAL
203 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
205 fputs ("\t.local\t", (FILE)); \
206 assemble_name ((FILE), (NAME)); \
207 putc ('\n', (FILE)); \
208 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
212 #define COMMON_ASM_OP "\t.common\t"
214 /* This is how to output a definition of an internal numbered label where
215 PREFIX is the class of label and NUM is the number within the class. */
217 #undef ASM_OUTPUT_INTERNAL_LABEL
218 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
219 fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)
221 /* This is how to output a reference to an internal numbered label where
222 PREFIX is the class of label and NUM is the number within the class. */
224 #undef ASM_OUTPUT_INTERNAL_LABELREF
225 #define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
226 fprintf (FILE, ".L%s%d", PREFIX, NUM)
228 /* This is how to store into the string LABEL
229 the symbol_ref name of an internal numbered label where
230 PREFIX is the class of label and NUM is the number within the class.
231 This is suitable for output with `assemble_name'. */
233 #undef ASM_GENERATE_INTERNAL_LABEL
234 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
235 sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM))
238 /* Define for support of TFmode long double and REAL_ARITHMETIC.
239 Sparc ABI says that long double is 4 words. */
240 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
242 /* Constant which presents upper bound of the above value. */
243 #define MAX_LONG_DOUBLE_TYPE_SIZE 128
245 /* Define this to set long double type size to use in libgcc2.c, which can
246 not depend on target_flags. */
247 #ifdef __LONG_DOUBLE_128__
248 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
250 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
253 #if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR)
254 #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "