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1.1 root 1: /* Definitions of target machine for GNU compiler, for SPARC running Solaris 2
2: Copyright 1992 Free Software Foundation, Inc.
3: Contributed by Ron Guilmette ([email protected]) and
4: David V. Henkel-Wallace ([email protected]).
5:
6: This file is part of GNU CC.
7:
8: GNU CC 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 2, or (at your option)
11: any later version.
12:
13: GNU CC 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.
17:
18: You should have received a copy of the GNU General Public License
19: along with GNU CC; see the file COPYING. If not, write to
20: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21:
22: /* Supposedly the same as vanilla sparc svr4, except for the stuff below: */
23: #include "sparc/sysv4.h"
24:
25: #undef CPP_PREDEFINES
26: #define CPP_PREDEFINES \
27: "-Dsun -Dsparc -Dunix -D__svr4__ \
28: -Asystem(unix) -Asystem(svr4) -Acpu(sparc) -Amachine(sparc)\
29: -D__GCC_NEW_VARARGS__"
30:
31: #undef CPP_SPEC
32: #define CPP_SPEC "\
33: %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude}\
34: %{msparclite:-D__sparclite__} %{mv8:-D__sparc_v8__}"
35:
36: /* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
37: It's safe to pass -s always, even if -g is not used. */
38: #undef ASM_SPEC
39: #define ASM_SPEC \
40: "%{V} %{v:%{!V:-V}} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
41: %{fpic:-K PIC} %{fPIC:-K PIC}"
42:
43: /* However it appears that Solaris 2.0 uses the same reg numbering as
44: the old BSD-style system did. */
45:
46: #undef DBX_REGISTER_NUMBER
47: /* Same as sparc.h */
48: #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
49:
50: /* We use stabs-in-elf for debugging, because that is what the native
51: toolchain uses. */
52: #define DBX_DEBUGGING_INFO
53: #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
54:
55: #define DBX_BLOCKS_FUNCTION_RELATIVE 1
56:
57: /* "gcc2_compiled." must be a .stabs, not an ordinary symbol, or GDB won't
58: see it. Furthermore, since GDB reads the input piecemeal, starting
59: with each N_SO, it's a lot easier if the gcc2 flag symbol is *after*
60: the N_SO rather than before it. So we emit an N_OPT stab here. */
61:
62: #define ASM_IDENTIFY_GCC(FILE) /* Do nothing */
63:
64: #define ASM_IDENTIFY_GCC_AFTER_SOURCE(FILE) \
65: fputs ("\t.stabs\t\"gcc2_compiled.\", 0x3c, 0, 0, 0\n", FILE)
66:
67: #undef CTORS_SECTION_ASM_OP
68: #undef DTORS_SECTION_ASM_OP
69:
70: #if 0 /* These seems unnecessary; the ones in sparc/sysv4.h look right. */
71: #undef TEXT_SECTION_ASM_OP
72: #undef DATA_SECTION_ASM_OP
73: #undef BSS_SECTION_ASM_OP
74: #undef CONST_SECTION_ASM_OP
75: #undef INIT_SECTION_ASM_OP
76:
77: #define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
78: #define DATA_SECTION_ASM_OP "\t.section\t\".data\""
79: #define BSS_SECTION_ASM_OP "\t.section\t\".bss\""
80:
81: #define CONST_SECTION_ASM_OP "\t.section\t\".rodata\""
82: #define INIT_SECTION_ASM_OP "\t.section\t\".init\""
83: #endif
84:
85: #define CTORS_SECTION_ASM_OP "\t.section\t\".ctors\",#alloc,#execinstr\n"
86: #define DTORS_SECTION_ASM_OP "\t.section\t\".dtors\",#alloc,#execinstr\n"
87:
88: /* The native assembler can't compute differences between symbols in different
89: sections when generating pic code, so we must put jump tables in the
90: text section. */
91: #define JUMP_TABLES_IN_TEXT_SECTION 1
92:
93: /* Must use data section for relocatable constants when pic. */
94: #undef SELECT_RTX_SECTION
95: #define SELECT_RTX_SECTION(MODE,RTX) \
96: { \
97: if (flag_pic && symbolic_operand (RTX)) \
98: data_section (); \
99: else \
100: const_section (); \
101: }
102:
103: /* The Solaris 2 assembler uses .skip, not .zero, so put this back. */
104: #undef ASM_OUTPUT_SKIP
105: #define ASM_OUTPUT_SKIP(FILE,SIZE) \
106: fprintf (FILE, "\t.skip %u\n", (SIZE))
107:
108: #undef ASM_OUTPUT_ALIGNED_LOCAL
109: #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
110: do { \
111: fputs ("\t.local\t", (FILE)); \
112: assemble_name ((FILE), (NAME)); \
113: putc ('\n', (FILE)); \
114: ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
115: } while (0)
116:
117: #undef COMMON_ASM_OP
118: #define COMMON_ASM_OP "\t.common"
119:
120: /* This is how to output a definition of an internal numbered label where
121: PREFIX is the class of label and NUM is the number within the class. */
122:
123: #undef ASM_OUTPUT_INTERNAL_LABEL
124: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
125: fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)
126:
127: /* This is how to output a reference to an internal numbered label where
128: PREFIX is the class of label and NUM is the number within the class. */
129:
130: #undef ASM_OUTPUT_INTERNAL_LABELREF
131: #define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
132: fprintf (FILE, ".L%s%d", PREFIX, NUM)
133:
134: /* This is how to store into the string LABEL
135: the symbol_ref name of an internal numbered label where
136: PREFIX is the class of label and NUM is the number within the class.
137: This is suitable for output with `assemble_name'. */
138:
139: #undef ASM_GENERATE_INTERNAL_LABEL
140: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
141: sprintf (LABEL, "*.L%s%d", PREFIX, NUM)
142:
143: /* in Solaris 2.0, linenos are relative to the current fn. */
144: #undef ASM_OUTPUT_SOURCE_LINE
145: #define ASM_OUTPUT_SOURCE_LINE(file, line) \
146: { static int sym_lineno = 1; \
147: fprintf (file, ".stabn 68,0,%d,.LM%d-%s\n.LM%d:\n", \
148: line, sym_lineno, \
149: XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0), \
150: sym_lineno); \
151: sym_lineno += 1; }
152:
153: /* But, to make this work, we have to output the stabs for the function
154: name *first*... */
155: #define DBX_FUNCTION_FIRST
156:
157:
158: /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.
159: We don't use the standard LIB_SPEC only because we don't yet support c++ */
160:
161: /* If we cannot find the GNU *crt*.o files in the STANDARD_STARTFILE_PREFIX
162: directory, our fallback strategy must be to look for these files instead
163: in the Sun C 2.0 directory. */
164:
165: #undef MD_STARTFILE_PREFIX
166: #define MD_STARTFILE_PREFIX "/opt/SUNWspro/SC2.0/"
167:
168: #undef STARTFILE_SPEC
169: #define STARTFILE_SPEC "%{!shared: \
170: %{!symbolic: \
171: %{pg:crt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} \
172: %{pg:gmon.o%s} \
173: %{pg:crti.o%s}%{!pg:crti.o%s} \
174: %{ansi:/usr/ccs/lib/values-Xc.o%s} \
175: %{!ansi: \
176: %{traditional:/usr/ccs/lib/values-Xt.o%s} \
177: %{!traditional:/usr/ccs/lib/values-Xa.o%s}}}} \
178: crtbegin.o%s"
179:
180: /* ??? Note: in order for -compat-bsd to work fully,
181: we must somehow arrange to fixincludes /usr/ucbinclude
182: and put the result in $(libsubdir)/ucbinclude. */
183:
184: #undef LIB_SPEC
185: #define LIB_SPEC \
186: "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \
187: %{!shared:%{!symbolic:-lc}} \
188: crtend.o%s \
189: %{!shared:%{!symbolic:%{pg:crtn.o%s}%{!pg:crtn.o%s}}}"
190:
191: /* This should be the same as in svr4.h, except with -R added. */
192: #undef LINK_SPEC
193: #define LINK_SPEC \
194: "%{h*} %{V} %{v:%{!V:-V}} \
195: %{b} %{Wl,*:%*} \
196: %{static:-dn -Bstatic} \
197: %{shared:-G -dy} \
198: %{symbolic:-Bsymbolic -G -dy} \
199: %{G:-G} \
200: %{YP,*} \
201: %{R*} \
202: %{compat-bsd: \
203: %{!YP,*:%{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
204: %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
205: -R /usr/ucblib} \
206: %{!compat-bsd: \
207: %{!YP,*:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
208: %{!p:-Y P,/usr/ccs/lib:/usr/lib}}} \
209: %{Qy:} %{!Qn:-Qy}"
210:
211: /* This defines which switch letters take arguments.
212: It is as in svr4.h but with -R added. */
213:
214: #undef SWITCH_TAKES_ARG
215: #define SWITCH_TAKES_ARG(CHAR) \
216: ( (CHAR) == 'D' \
217: || (CHAR) == 'U' \
218: || (CHAR) == 'o' \
219: || (CHAR) == 'e' \
220: || (CHAR) == 'u' \
221: || (CHAR) == 'I' \
222: || (CHAR) == 'm' \
223: || (CHAR) == 'L' \
224: || (CHAR) == 'R' \
225: || (CHAR) == 'A' \
226: || (CHAR) == 'h' \
227: || (CHAR) == 'z')
228:
229: /* ??? This does not work in SunOS 4.x, so it is not enabled in sparc.h.
230: Instead, it is enabled here, because it does work under Solaris. */
231: /* Define for support of TFmode long double and REAL_ARITHMETIC.
232: Sparc ABI says that long double is 4 words. */
233: #define LONG_DOUBLE_TYPE_SIZE 128
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