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