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Annotation of gcc/config/mips/elf64.h, revision 1.1

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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