1 /* Definitions for SPARC running Linux-based GNU systems with ELF.
2 Copyright (C) 1996, 1997, 1998 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
30 /* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is.
31 For now, we play safe. It may change later. */
34 #undef MULTIBYTE_CHARS
35 #define MULTIBYTE_CHARS 1
39 #undef DEFAULT_VTABLE_THUNKS
40 #define DEFAULT_VTABLE_THUNKS 1
43 /* Use stabs instead of DWARF debug format. */
44 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
46 #include <sparc/sysv4.h>
49 #undef MD_STARTFILE_PREFIX
51 /* Output at beginning of assembler file. */
52 /* The .file command should always begin the output. */
54 #define ASM_FILE_START(FILE) \
56 output_file_directive (FILE, main_input_filename); \
57 fprintf (FILE, "\t.version\t\"01.01\"\n"); \
60 /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
61 the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
62 provides part of the support for getting C++ file-scope static
63 object constructed before entering `main'. */
66 #define STARTFILE_SPEC \
68 %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
69 crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
71 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
72 the GNU/Linux magical crtend.o file (see crtstuff.c) which
73 provides part of the support for getting C++ file-scope static
74 object constructed before entering `main', followed by a normal
75 GNU/Linux "finalizer" file, `crtn.o'. */
78 #define ENDFILE_SPEC \
79 "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
81 /* This is for -profile to use -lc_p instead of -lc. */
83 #define CC1_SPEC "%{profile:-p} \
85 %{mcypress:-mcpu=cypress} \
86 %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
87 %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
91 #define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)");
94 #define SIZE_TYPE "unsigned int"
97 #define PTRDIFF_TYPE "int"
100 #define WCHAR_TYPE "int"
102 #undef WCHAR_TYPE_SIZE
103 #define WCHAR_TYPE_SIZE 32
105 #undef MAX_WCHAR_TYPE_SIZE
107 #undef CPP_PREDEFINES
108 #define CPP_PREDEFINES "-D__ELF__ -Dunix -D__sparc__ -Dlinux -Asystem(unix) -Asystem(posix)"
110 #undef CPP_SUBTARGET_SPEC
112 #define CPP_SUBTARGET_SPEC \
113 "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE}"
115 #define CPP_SUBTARGET_SPEC \
116 "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
120 /* We no longer link with libc_p.a or libg.a by default. If you
121 want to profile or debug the GNU/Linux C library, please add
122 -lc_p or -ggdb to LDFLAGS at the link time, respectively. */
126 "%{!shared: %{p:-lgmon} %{pg:-lgmon} %{profile:-lgmon -lc_p} \
127 %{!profile:%{!ggdb:-lc} %{ggdb:-lg}}}"
131 %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
132 %{profile:-lc_p} %{!profile: -lc}}"
137 %{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \
138 %{!p:%{!pg:%{!g*:-lc} %{g*:-lg}}}}"
141 /* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
142 for the special GCC options -static and -shared, which allow us to
143 link things in one of these three modes by applying the appropriate
144 combinations of options at link-time. We like to support here for
145 as many of the other GNU linker options as possible. But I don't
146 have the time to search for those flags. I am sure how to add
147 support for -soname shared_object_name. H.J.
149 I took out %{v:%{!V:-V}}. It is too much :-(. They can use
152 When the -shared link option is used a final link is not being
155 /* If ELF is the default format, we should not use /lib/elf. */
159 #ifndef LINUX_DEFAULT_ELF
160 #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
164 %{rdynamic:-export-dynamic} \
165 %{!dynamic-linker:-dynamic-linker /lib/elf/ld-linux.so.1} \
166 %{!rpath:-rpath /lib/elf/}} %{static:-static}}}"
168 #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
172 %{rdynamic:-export-dynamic} \
173 %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.1}} \
177 #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
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} %{fPIC:-K PIC}"
192 /* Same as sparc.h */
193 #undef DBX_REGISTER_NUMBER
194 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
196 /* We use stabs-in-elf for debugging, because that is what the native
197 toolchain uses. XXX */
198 #undef PREFERRED_DEBUGGING_TYPE
199 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
201 #undef ASM_OUTPUT_ALIGNED_LOCAL
202 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
204 fputs ("\t.local\t", (FILE)); \
205 assemble_name ((FILE), (NAME)); \
206 putc ('\n', (FILE)); \
207 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
211 #define COMMON_ASM_OP "\t.common"
213 /* This is how to output a definition of an internal numbered label where
214 PREFIX is the class of label and NUM is the number within the class. */
216 #undef ASM_OUTPUT_INTERNAL_LABEL
217 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
218 fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)
220 /* This is how to output a reference to an internal numbered label where
221 PREFIX is the class of label and NUM is the number within the class. */
223 #undef ASM_OUTPUT_INTERNAL_LABELREF
224 #define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
225 fprintf (FILE, ".L%s%d", PREFIX, NUM)
227 /* This is how to store into the string LABEL
228 the symbol_ref name of an internal numbered label where
229 PREFIX is the class of label and NUM is the number within the class.
230 This is suitable for output with `assemble_name'. */
232 #undef ASM_GENERATE_INTERNAL_LABEL
233 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
234 sprintf (LABEL, "*.L%s%d", PREFIX, NUM)
238 /* Define for support of TFmode long double and REAL_ARITHMETIC.
239 Sparc ABI says that long double is 4 words. GNU/Linux does not support
241 #define LONG_DOUBLE_TYPE_SIZE 128
244 /* Override MACHINE_STATE_{SAVE,RESTORE} because we have special
245 traps available which can get and set the condition codes
247 #undef MACHINE_STATE_SAVE
248 #define MACHINE_STATE_SAVE(ID) \
249 unsigned long int ms_flags, ms_saveret; \
250 asm volatile("ta 0x20\n\t" \
253 : "=r" (ms_flags), "=r" (ms_saveret));
255 #undef MACHINE_STATE_RESTORE
256 #define MACHINE_STATE_RESTORE(ID) \
257 asm volatile("mov %0, %%g1\n\t" \
261 : "r" (ms_flags), "r" (ms_saveret));