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1.1 root 1: /* Definitions of target machine for GNU compiler. MIPS R4000 version with
2: GOFAST floating point library.
3: Copyright (C) 1994, 1995 Free Software Foundation, Inc.
4:
5: This file is part of GNU CC.
6:
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)
10: any later version.
11:
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.
16:
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. */
21:
22: #define OBJECT_FORMAT_ELF
23:
24: /* Default to -mips3. */
25: #define TARGET_DEFAULT MASK_FLOAT64|MASK_64BIT
26: #define MIPS_ISA_DEFAULT 3
27:
28: #ifndef TARGET_ENDIAN_DEFAULT
29: #define MULTILIB_DEFAULTS { "EB", "mips3" }
30: #else
31: #define MULTILIB_DEFAULTS { "EL", "mips3" }
32: #endif
33:
34: /* Until we figure out what MIPS ELF targets normally use, just do
35: stabs in ELF. */
36: #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
37:
38: #include "mips/mips.h"
39:
40: #undef CPP_PREDEFINES
41: #define CPP_PREDEFINES "-Dmips -DMIPSEB -DR4000 -D_mips -D_MIPSEB -D_R4000"
42:
43: /* This is the same as the one in mips64.h except that it defines __mips=3
44: at the end. I would rather put this in CPP_PREDEFINES, but the gcc
45: driver doesn't handle -U options in CPP_PREDEFINES. */
46: #undef CPP_SPEC
47: #define CPP_SPEC "\
48: %{.cc: -D__LANGUAGE_C_PLUS_PLUS -D_LANGUAGE_C_PLUS_PLUS} \
49: %{.cxx: -D__LANGUAGE_C_PLUS_PLUS -D_LANGUAGE_C_PLUS_PLUS} \
50: %{.C: -D__LANGUAGE_C_PLUS_PLUS -D_LANGUAGE_C_PLUS_PLUS} \
51: %{.m: -D__LANGUAGE_OBJECTIVE_C -D_LANGUAGE_OBJECTIVE_C} \
52: %{.S: -D__LANGUAGE_ASSEMBLY -D_LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \
53: %{.s: -D__LANGUAGE_ASSEMBLY -D_LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \
54: %{!.S:%{!.s: -D__LANGUAGE_C -D_LANGUAGE_C %{!ansi:-DLANGUAGE_C}}} \
55: %{mlong64:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \
56: %{!mlong64:-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \
57: %{!mips1:%{!mips2:-U__mips -D__mips=3 -D__mips64}} \
58: %{mgp32:-U__mips64} %{mgp64:-D__mips64} \
59: %{EB:-UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ -D_MIPSEB -D__MIPSEB -D__MIPSEB__ %{!ansi:-DMIPSEB}} \
60: %{EL:-UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ -D_MIPSEL -D__MIPSEL -D__MIPSEL__ %{!ansi:-DMIPSEL}}"
61:
62: /* Use memcpy, et. al., rather than bcopy. */
63: #define TARGET_MEM_FUNCTIONS
64:
65: /* US Software GOFAST library support. */
66: #include "gofast.h"
67: #define INIT_TARGET_OPTABS INIT_GOFAST_OPTABS
68:
69: /* We need to use .esize and .etype instead of .size and .type to
70: avoid conflicting with ELF directives. */
71: #undef PUT_SDB_SIZE
72: #define PUT_SDB_SIZE(a) \
73: do { \
74: extern FILE *asm_out_text_file; \
75: fprintf (asm_out_text_file, "\t.esize\t%d;", (a)); \
76: } while (0)
77:
78: #undef PUT_SDB_TYPE
79: #define PUT_SDB_TYPE(a) \
80: do { \
81: extern FILE *asm_out_text_file; \
82: fprintf (asm_out_text_file, "\t.etype\t0x%x;", (a)); \
83: } while (0)
84:
85: /* A C statement to output something to the assembler file to switch to section
86: NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
87: NULL_TREE. Some target formats do not support arbitrary sections. Do not
88: define this macro in such cases. */
89:
90: #define ASM_OUTPUT_SECTION_NAME(F, DECL, NAME) \
91: do { \
92: extern FILE *asm_out_text_file; \
93: if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \
94: fprintf (asm_out_text_file, "\t.section %s,\"ax\",@progbits\n", (NAME)); \
95: else if ((DECL) && TREE_READONLY (DECL)) \
96: fprintf (F, "\t.section %s,\"a\",@progbits\n", (NAME)); \
97: else \
98: fprintf (F, "\t.section %s,\"aw\",@progbits\n", (NAME)); \
99: } while (0)
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