[8833] | 1 | /* Output sdb-format symbol table information from GNU compiler. |
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| 2 | Copyright (C) 1988, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of GNU CC. |
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| 5 | |
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| 6 | GNU CC is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | GNU CC is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with GNU CC; see the file COPYING. If not, write to |
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| 18 | the Free Software Foundation, 59 Temple Place - Suite 330, |
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| 19 | Boston, MA 02111-1307, USA. */ |
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| 20 | |
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| 21 | /* mike@tredysvr.Tredydev.Unisys.COM says: |
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| 22 | I modified the struct.c example and have a nm of a .o resulting from the |
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| 23 | AT&T C compiler. From the example below I would conclude the following: |
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| 24 | |
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| 25 | 1. All .defs from structures are emitted as scanned. The example below |
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| 26 | clearly shows the symbol table entries for BoxRec2 are after the first |
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| 27 | function. |
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| 28 | |
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| 29 | 2. All functions and their locals (including statics) are emitted as scanned. |
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| 30 | |
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| 31 | 3. All nested unnamed union and structure .defs must be emitted before |
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| 32 | the structure in which they are nested. The AT&T assembler is a |
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| 33 | one pass beast as far as symbolics are concerned. |
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| 34 | |
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| 35 | 4. All structure .defs are emitted before the typedefs that refer to them. |
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| 36 | |
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| 37 | 5. All top level static and external variable definitions are moved to the |
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| 38 | end of file with all top level statics occurring first before externs. |
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| 39 | |
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| 40 | 6. All undefined references are at the end of the file. |
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| 41 | */ |
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| 42 | |
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| 43 | #include "config.h" |
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| 44 | |
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| 45 | #ifdef SDB_DEBUGGING_INFO |
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| 46 | |
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| 47 | #include "tree.h" |
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| 48 | #include "rtl.h" |
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| 49 | #include <stdio.h> |
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| 50 | #include "regs.h" |
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| 51 | #include "flags.h" |
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| 52 | #include "insn-config.h" |
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| 53 | #include "reload.h" |
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| 54 | |
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| 55 | /* Mips systems use the SDB functions to dump out symbols, but |
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| 56 | do not supply usable syms.h include files. */ |
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| 57 | #if defined(USG) && !defined(MIPS) && !defined (hpux) && !defined(_WIN32) && !defined(__linux__) |
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| 58 | #include <syms.h> |
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| 59 | /* Use T_INT if we don't have T_VOID. */ |
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| 60 | #ifndef T_VOID |
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| 61 | #define T_VOID T_INT |
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| 62 | #endif |
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| 63 | #else /* not USG, or MIPS */ |
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| 64 | #include "gsyms.h" |
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| 65 | #endif /* not USG, or MIPS */ |
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| 66 | |
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| 67 | /* #include <storclass.h> used to be this instead of syms.h. */ |
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| 68 | |
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| 69 | /* 1 if PARM is passed to this function in memory. */ |
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| 70 | |
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| 71 | #define PARM_PASSED_IN_MEMORY(PARM) \ |
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| 72 | (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM) |
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| 73 | |
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| 74 | /* A C expression for the integer offset value of an automatic variable |
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| 75 | (C_AUTO) having address X (an RTX). */ |
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| 76 | #ifndef DEBUGGER_AUTO_OFFSET |
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| 77 | #define DEBUGGER_AUTO_OFFSET(X) \ |
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| 78 | (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0) |
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| 79 | #endif |
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| 80 | |
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| 81 | /* A C expression for the integer offset value of an argument (C_ARG) |
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| 82 | having address X (an RTX). The nominal offset is OFFSET. */ |
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| 83 | #ifndef DEBUGGER_ARG_OFFSET |
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| 84 | #define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET) |
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| 85 | #endif |
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| 86 | |
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| 87 | /* Line number of beginning of current function, minus one. |
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| 88 | Negative means not in a function or not using sdb. */ |
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| 89 | |
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| 90 | int sdb_begin_function_line = -1; |
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| 91 | |
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| 92 | /* Counter to generate unique "names" for nameless struct members. */ |
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| 93 | |
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| 94 | static int unnamed_struct_number = 0; |
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| 95 | |
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| 96 | extern FILE *asm_out_file; |
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| 97 | |
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| 98 | extern tree current_function_decl; |
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| 99 | |
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| 100 | void sdbout_init (); |
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| 101 | void sdbout_symbol (); |
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| 102 | void sdbout_types(); |
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| 103 | |
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| 104 | static void sdbout_typedefs (); |
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| 105 | static void sdbout_syms (); |
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| 106 | static void sdbout_one_type (); |
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| 107 | static void sdbout_queue_anonymous_type (); |
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| 108 | static void sdbout_dequeue_anonymous_types (); |
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| 109 | static int plain_type_1 (); |
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| 110 | |
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| 111 | /* Define the default sizes for various types. */ |
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| 112 | |
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| 113 | #ifndef CHAR_TYPE_SIZE |
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| 114 | #define CHAR_TYPE_SIZE BITS_PER_UNIT |
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| 115 | #endif |
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| 116 | |
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| 117 | #ifndef SHORT_TYPE_SIZE |
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| 118 | #define SHORT_TYPE_SIZE (BITS_PER_UNIT * MIN ((UNITS_PER_WORD + 1) / 2, 2)) |
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| 119 | #endif |
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| 120 | |
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| 121 | #ifndef INT_TYPE_SIZE |
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| 122 | #define INT_TYPE_SIZE BITS_PER_WORD |
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| 123 | #endif |
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| 124 | |
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| 125 | #ifndef LONG_TYPE_SIZE |
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| 126 | #define LONG_TYPE_SIZE BITS_PER_WORD |
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| 127 | #endif |
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| 128 | |
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| 129 | #ifndef LONG_LONG_TYPE_SIZE |
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| 130 | #define LONG_LONG_TYPE_SIZE (BITS_PER_WORD * 2) |
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| 131 | #endif |
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| 132 | |
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| 133 | #ifndef FLOAT_TYPE_SIZE |
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| 134 | #define FLOAT_TYPE_SIZE BITS_PER_WORD |
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| 135 | #endif |
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| 136 | |
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| 137 | #ifndef DOUBLE_TYPE_SIZE |
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| 138 | #define DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2) |
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| 139 | #endif |
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| 140 | |
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| 141 | #ifndef LONG_DOUBLE_TYPE_SIZE |
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| 142 | #define LONG_DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2) |
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| 143 | #endif |
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| 144 | |
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| 145 | /* Random macros describing parts of SDB data. */ |
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| 146 | |
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| 147 | /* Put something here if lines get too long */ |
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| 148 | #define CONTIN |
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| 149 | |
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| 150 | /* Default value of delimiter is ";". */ |
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| 151 | #ifndef SDB_DELIM |
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| 152 | #define SDB_DELIM ";" |
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| 153 | #endif |
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| 154 | |
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| 155 | /* Maximum number of dimensions the assembler will allow. */ |
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| 156 | #ifndef SDB_MAX_DIM |
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| 157 | #define SDB_MAX_DIM 4 |
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| 158 | #endif |
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| 159 | |
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| 160 | #ifndef PUT_SDB_SCL |
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| 161 | #define PUT_SDB_SCL(a) fprintf(asm_out_file, "\t.scl\t%d%s", (a), SDB_DELIM) |
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| 162 | #endif |
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| 163 | |
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| 164 | #ifndef PUT_SDB_INT_VAL |
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| 165 | #define PUT_SDB_INT_VAL(a) fprintf (asm_out_file, "\t.val\t%d%s", (a), SDB_DELIM) |
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| 166 | #endif |
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| 167 | |
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| 168 | #ifndef PUT_SDB_VAL |
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| 169 | #define PUT_SDB_VAL(a) \ |
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| 170 | ( fputs ("\t.val\t", asm_out_file), \ |
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| 171 | output_addr_const (asm_out_file, (a)), \ |
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| 172 | fprintf (asm_out_file, SDB_DELIM)) |
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| 173 | #endif |
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| 174 | |
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| 175 | #ifndef PUT_SDB_DEF |
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| 176 | #define PUT_SDB_DEF(a) \ |
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| 177 | do { fprintf (asm_out_file, "\t.def\t"); \ |
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| 178 | ASM_OUTPUT_LABELREF (asm_out_file, a); \ |
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| 179 | fprintf (asm_out_file, SDB_DELIM); } while (0) |
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| 180 | #endif |
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| 181 | |
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| 182 | #ifndef PUT_SDB_PLAIN_DEF |
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| 183 | #define PUT_SDB_PLAIN_DEF(a) fprintf(asm_out_file,"\t.def\t.%s%s",a, SDB_DELIM) |
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| 184 | #endif |
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| 185 | |
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| 186 | #ifndef PUT_SDB_ENDEF |
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| 187 | #define PUT_SDB_ENDEF fputs("\t.endef\n", asm_out_file) |
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| 188 | #endif |
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| 189 | |
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| 190 | #ifndef PUT_SDB_TYPE |
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| 191 | #define PUT_SDB_TYPE(a) fprintf(asm_out_file, "\t.type\t0%o%s", a, SDB_DELIM) |
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| 192 | #endif |
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| 193 | |
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| 194 | #ifndef PUT_SDB_SIZE |
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| 195 | #define PUT_SDB_SIZE(a) fprintf(asm_out_file, "\t.size\t%d%s", a, SDB_DELIM) |
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| 196 | #endif |
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| 197 | |
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| 198 | #ifndef PUT_SDB_START_DIM |
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| 199 | #define PUT_SDB_START_DIM fprintf(asm_out_file, "\t.dim\t") |
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| 200 | #endif |
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| 201 | |
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| 202 | #ifndef PUT_SDB_NEXT_DIM |
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| 203 | #define PUT_SDB_NEXT_DIM(a) fprintf(asm_out_file, "%d,", a) |
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| 204 | #endif |
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| 205 | |
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| 206 | #ifndef PUT_SDB_LAST_DIM |
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| 207 | #define PUT_SDB_LAST_DIM(a) fprintf(asm_out_file, "%d%s", a, SDB_DELIM) |
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| 208 | #endif |
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| 209 | |
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| 210 | #ifndef PUT_SDB_TAG |
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| 211 | #define PUT_SDB_TAG(a) \ |
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| 212 | do { fprintf (asm_out_file, "\t.tag\t"); \ |
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| 213 | ASM_OUTPUT_LABELREF (asm_out_file, a); \ |
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| 214 | fprintf (asm_out_file, SDB_DELIM); } while (0) |
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| 215 | #endif |
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| 216 | |
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| 217 | #ifndef PUT_SDB_BLOCK_START |
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| 218 | #define PUT_SDB_BLOCK_START(LINE) \ |
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| 219 | fprintf (asm_out_file, \ |
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| 220 | "\t.def\t.bb%s\t.val\t.%s\t.scl\t100%s\t.line\t%d%s\t.endef\n", \ |
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| 221 | SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM) |
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| 222 | #endif |
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| 223 | |
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| 224 | #ifndef PUT_SDB_BLOCK_END |
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| 225 | #define PUT_SDB_BLOCK_END(LINE) \ |
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| 226 | fprintf (asm_out_file, \ |
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| 227 | "\t.def\t.eb%s\t.val\t.%s\t.scl\t100%s\t.line\t%d%s\t.endef\n", \ |
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| 228 | SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM) |
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| 229 | #endif |
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| 230 | |
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| 231 | #ifndef PUT_SDB_FUNCTION_START |
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| 232 | #define PUT_SDB_FUNCTION_START(LINE) \ |
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| 233 | fprintf (asm_out_file, \ |
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| 234 | "\t.def\t.bf%s\t.val\t.%s\t.scl\t101%s\t.line\t%d%s\t.endef\n", \ |
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| 235 | SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM) |
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| 236 | #endif |
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| 237 | |
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| 238 | #ifndef PUT_SDB_FUNCTION_END |
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| 239 | #define PUT_SDB_FUNCTION_END(LINE) \ |
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| 240 | fprintf (asm_out_file, \ |
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| 241 | "\t.def\t.ef%s\t.val\t.%s\t.scl\t101%s\t.line\t%d%s\t.endef\n", \ |
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| 242 | SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM) |
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| 243 | #endif |
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| 244 | |
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| 245 | #ifndef PUT_SDB_EPILOGUE_END |
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| 246 | #define PUT_SDB_EPILOGUE_END(NAME) \ |
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| 247 | do { fprintf (asm_out_file, "\t.def\t"); \ |
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| 248 | ASM_OUTPUT_LABELREF (asm_out_file, NAME); \ |
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| 249 | fprintf (asm_out_file, \ |
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| 250 | "%s\t.val\t.%s\t.scl\t-1%s\t.endef\n", \ |
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| 251 | SDB_DELIM, SDB_DELIM, SDB_DELIM); } while (0) |
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| 252 | #endif |
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| 253 | |
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| 254 | #ifndef SDB_GENERATE_FAKE |
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| 255 | #define SDB_GENERATE_FAKE(BUFFER, NUMBER) \ |
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| 256 | sprintf ((BUFFER), ".%dfake", (NUMBER)); |
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| 257 | #endif |
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| 258 | |
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| 259 | /* Return the sdb tag identifier string for TYPE |
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| 260 | if TYPE has already been defined; otherwise return a null pointer. */ |
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| 261 | |
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| 262 | #define KNOWN_TYPE_TAG(type) TYPE_SYMTAB_POINTER (type) |
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| 263 | |
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| 264 | /* Set the sdb tag identifier string for TYPE to NAME. */ |
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| 265 | |
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| 266 | #define SET_KNOWN_TYPE_TAG(TYPE, NAME) \ |
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| 267 | TYPE_SYMTAB_POINTER (TYPE) = (NAME) |
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| 268 | |
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| 269 | /* Return the name (a string) of the struct, union or enum tag |
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| 270 | described by the TREE_LIST node LINK. This is 0 for an anonymous one. */ |
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| 271 | |
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| 272 | #define TAG_NAME(link) \ |
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| 273 | (((link) && TREE_PURPOSE ((link)) \ |
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| 274 | && IDENTIFIER_POINTER (TREE_PURPOSE ((link)))) \ |
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| 275 | ? IDENTIFIER_POINTER (TREE_PURPOSE ((link))) : (char *) 0) |
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| 276 | |
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| 277 | /* Ensure we don't output a negative line number. */ |
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| 278 | #define MAKE_LINE_SAFE(line) \ |
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| 279 | if (line <= sdb_begin_function_line) line = sdb_begin_function_line + 1 |
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| 280 | |
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| 281 | /* Set up for SDB output at the start of compilation. */ |
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| 282 | |
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| 283 | void |
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| 284 | sdbout_init (asm_file, input_file_name, syms) |
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| 285 | FILE *asm_file; |
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| 286 | char *input_file_name; |
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| 287 | tree syms; |
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| 288 | { |
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| 289 | #ifdef RMS_QUICK_HACK_1 |
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| 290 | tree t; |
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| 291 | for (t = syms; t; t = TREE_CHAIN (t)) |
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| 292 | if (DECL_NAME (t) && IDENTIFIER_POINTER (DECL_NAME (t)) != 0 |
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| 293 | && !strcmp (IDENTIFIER_POINTER (DECL_NAME (t)), "__vtbl_ptr_type")) |
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| 294 | sdbout_symbol (t, 0); |
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| 295 | #endif |
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| 296 | |
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| 297 | #if 0 /* Nothing need be output for the predefined types. */ |
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| 298 | /* Get all permanent types that have typedef names, |
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| 299 | and output them all, except for those already output. */ |
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| 300 | |
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| 301 | sdbout_typedefs (syms); |
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| 302 | #endif |
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| 303 | } |
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| 304 | |
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| 305 | #if 0 |
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| 306 | |
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| 307 | /* return the tag identifier for type |
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| 308 | */ |
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| 309 | |
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| 310 | char * |
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| 311 | tag_of_ru_type (type,link) |
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| 312 | tree type,link; |
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| 313 | { |
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| 314 | if (TYPE_SYMTAB_ADDRESS (type)) |
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| 315 | return TYPE_SYMTAB_ADDRESS (type); |
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| 316 | if (link && TREE_PURPOSE (link) |
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| 317 | && IDENTIFIER_POINTER (TREE_PURPOSE (link))) |
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| 318 | TYPE_SYMTAB_ADDRESS (type) = IDENTIFIER_POINTER (TREE_PURPOSE (link)); |
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| 319 | else |
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| 320 | return (char *) TYPE_SYMTAB_ADDRESS (type); |
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| 321 | } |
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| 322 | #endif |
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| 323 | |
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| 324 | /* Return a unique string to name an anonymous type. */ |
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| 325 | |
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| 326 | static char * |
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| 327 | gen_fake_label () |
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| 328 | { |
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| 329 | char label[10]; |
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| 330 | char *labelstr; |
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| 331 | SDB_GENERATE_FAKE (label, unnamed_struct_number); |
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| 332 | unnamed_struct_number++; |
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| 333 | labelstr = (char *) permalloc (strlen (label) + 1); |
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| 334 | strcpy (labelstr, label); |
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| 335 | return labelstr; |
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| 336 | } |
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| 337 | |
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| 338 | /* Return the number which describes TYPE for SDB. |
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| 339 | For pointers, etc., this function is recursive. |
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| 340 | Each record, union or enumeral type must already have had a |
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| 341 | tag number output. */ |
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| 342 | |
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| 343 | /* The number is given by d6d5d4d3d2d1bbbb |
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| 344 | where bbbb is 4 bit basic type, and di indicate one of notype,ptr,fn,array. |
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| 345 | Thus, char *foo () has bbbb=T_CHAR |
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| 346 | d1=D_FCN |
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| 347 | d2=D_PTR |
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| 348 | N_BTMASK= 017 1111 basic type field. |
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| 349 | N_TSHIFT= 2 derived type shift |
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| 350 | N_BTSHFT= 4 Basic type shift */ |
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| 351 | |
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| 352 | /* Produce the number that describes a pointer, function or array type. |
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| 353 | PREV is the number describing the target, value or element type. |
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| 354 | DT_type describes how to transform that type. */ |
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| 355 | #define PUSH_DERIVED_LEVEL(DT_type,PREV) \ |
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| 356 | ((((PREV) & ~(int)N_BTMASK) << (int)N_TSHIFT) \ |
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| 357 | | ((int)DT_type << (int)N_BTSHFT) \ |
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| 358 | | ((PREV) & (int)N_BTMASK)) |
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| 359 | |
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| 360 | /* Number of elements used in sdb_dims. */ |
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| 361 | static int sdb_n_dims = 0; |
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| 362 | |
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| 363 | /* Table of array dimensions of current type. */ |
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| 364 | static int sdb_dims[SDB_MAX_DIM]; |
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| 365 | |
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| 366 | /* Size of outermost array currently being processed. */ |
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| 367 | static int sdb_type_size = -1; |
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| 368 | |
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| 369 | static int |
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| 370 | plain_type (type) |
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| 371 | tree type; |
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| 372 | { |
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| 373 | int val = plain_type_1 (type, 0); |
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| 374 | |
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| 375 | /* If we have already saved up some array dimensions, print them now. */ |
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| 376 | if (sdb_n_dims > 0) |
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| 377 | { |
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| 378 | int i; |
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| 379 | PUT_SDB_START_DIM; |
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| 380 | for (i = sdb_n_dims - 1; i > 0; i--) |
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| 381 | PUT_SDB_NEXT_DIM (sdb_dims[i]); |
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| 382 | PUT_SDB_LAST_DIM (sdb_dims[0]); |
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| 383 | sdb_n_dims = 0; |
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| 384 | |
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| 385 | sdb_type_size = int_size_in_bytes (type); |
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| 386 | /* Don't kill sdb if type is not laid out or has variable size. */ |
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| 387 | if (sdb_type_size < 0) |
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| 388 | sdb_type_size = 0; |
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| 389 | } |
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| 390 | /* If we have computed the size of an array containing this type, |
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| 391 | print it now. */ |
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| 392 | if (sdb_type_size >= 0) |
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| 393 | { |
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| 394 | PUT_SDB_SIZE (sdb_type_size); |
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| 395 | sdb_type_size = -1; |
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| 396 | } |
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| 397 | return val; |
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| 398 | } |
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| 399 | |
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| 400 | static int |
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| 401 | template_name_p (name) |
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| 402 | tree name; |
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| 403 | { |
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| 404 | register char *ptr = IDENTIFIER_POINTER (name); |
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| 405 | while (*ptr && *ptr != '<') |
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| 406 | ptr++; |
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| 407 | |
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| 408 | return *ptr != '\0'; |
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| 409 | } |
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| 410 | |
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| 411 | static void |
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| 412 | sdbout_record_type_name (type) |
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| 413 | tree type; |
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| 414 | { |
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| 415 | char *name = 0; |
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| 416 | int no_name; |
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| 417 | |
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| 418 | if (KNOWN_TYPE_TAG (type)) |
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| 419 | return; |
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| 420 | |
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| 421 | if (TYPE_NAME (type) != 0) |
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| 422 | { |
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| 423 | tree t = 0; |
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| 424 | /* Find the IDENTIFIER_NODE for the type name. */ |
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| 425 | if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE) |
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| 426 | t = TYPE_NAME (type); |
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| 427 | else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL) |
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| 428 | { |
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| 429 | t = DECL_NAME (TYPE_NAME (type)); |
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| 430 | /* The DECL_NAME for templates includes "<>", which breaks |
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| 431 | most assemblers. Use its assembler name instead, which |
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| 432 | has been mangled into being safe. */ |
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| 433 | if (t && template_name_p (t)) |
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| 434 | t = DECL_ASSEMBLER_NAME (TYPE_NAME (type)); |
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| 435 | } |
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| 436 | |
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| 437 | /* Now get the name as a string, or invent one. */ |
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| 438 | if (t != NULL_TREE) |
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| 439 | name = IDENTIFIER_POINTER (t); |
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| 440 | } |
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| 441 | |
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| 442 | no_name = (name == 0 || *name == 0); |
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| 443 | if (no_name) |
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| 444 | name = gen_fake_label (); |
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| 445 | |
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| 446 | SET_KNOWN_TYPE_TAG (type, name); |
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| 447 | #ifdef SDB_ALLOW_FORWARD_REFERENCES |
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| 448 | if (no_name) |
---|
| 449 | sdbout_queue_anonymous_type (type); |
---|
| 450 | #endif |
---|
| 451 | } |
---|
| 452 | |
---|
| 453 | /* Return the .type value for type TYPE. |
---|
| 454 | |
---|
| 455 | LEVEL indicates how many levels deep we have recursed into the type. |
---|
| 456 | The SDB debug format can only represent 6 derived levels of types. |
---|
| 457 | After that, we must output inaccurate debug info. We deliberately |
---|
| 458 | stop before the 7th level, so that ADA recursive types will not give an |
---|
| 459 | infinite loop. */ |
---|
| 460 | |
---|
| 461 | static int |
---|
| 462 | plain_type_1 (type, level) |
---|
| 463 | tree type; |
---|
| 464 | int level; |
---|
| 465 | { |
---|
| 466 | if (type == 0) |
---|
| 467 | type = void_type_node; |
---|
| 468 | else if (type == error_mark_node) |
---|
| 469 | type = integer_type_node; |
---|
| 470 | else |
---|
| 471 | type = TYPE_MAIN_VARIANT (type); |
---|
| 472 | |
---|
| 473 | switch (TREE_CODE (type)) |
---|
| 474 | { |
---|
| 475 | case VOID_TYPE: |
---|
| 476 | return T_VOID; |
---|
| 477 | case INTEGER_TYPE: |
---|
| 478 | { |
---|
| 479 | int size = int_size_in_bytes (type) * BITS_PER_UNIT; |
---|
| 480 | |
---|
| 481 | /* Carefully distinguish all the standard types of C, |
---|
| 482 | without messing up if the language is not C. |
---|
| 483 | Note that we check only for the names that contain spaces; |
---|
| 484 | other names might occur by coincidence in other languages. */ |
---|
| 485 | if (TYPE_NAME (type) != 0 |
---|
| 486 | && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL |
---|
| 487 | && DECL_NAME (TYPE_NAME (type)) != 0 |
---|
| 488 | && TREE_CODE (DECL_NAME (TYPE_NAME (type))) == IDENTIFIER_NODE) |
---|
| 489 | { |
---|
| 490 | char *name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type))); |
---|
| 491 | |
---|
| 492 | if (!strcmp (name, "unsigned char")) |
---|
| 493 | return T_UCHAR; |
---|
| 494 | if (!strcmp (name, "signed char")) |
---|
| 495 | return T_CHAR; |
---|
| 496 | if (!strcmp (name, "unsigned int")) |
---|
| 497 | return T_UINT; |
---|
| 498 | if (!strcmp (name, "short int")) |
---|
| 499 | return T_SHORT; |
---|
| 500 | if (!strcmp (name, "short unsigned int")) |
---|
| 501 | return T_USHORT; |
---|
| 502 | if (!strcmp (name, "long int")) |
---|
| 503 | return T_LONG; |
---|
| 504 | if (!strcmp (name, "long unsigned int")) |
---|
| 505 | return T_ULONG; |
---|
| 506 | } |
---|
| 507 | |
---|
| 508 | if (size == CHAR_TYPE_SIZE) |
---|
| 509 | return (TREE_UNSIGNED (type) ? T_UCHAR : T_CHAR); |
---|
| 510 | if (size == SHORT_TYPE_SIZE) |
---|
| 511 | return (TREE_UNSIGNED (type) ? T_USHORT : T_SHORT); |
---|
| 512 | if (size == INT_TYPE_SIZE) |
---|
| 513 | return (TREE_UNSIGNED (type) ? T_UINT : T_INT); |
---|
| 514 | if (size == LONG_TYPE_SIZE) |
---|
| 515 | return (TREE_UNSIGNED (type) ? T_ULONG : T_LONG); |
---|
| 516 | if (size == LONG_LONG_TYPE_SIZE) /* better than nothing */ |
---|
| 517 | return (TREE_UNSIGNED (type) ? T_ULONG : T_LONG); |
---|
| 518 | return 0; |
---|
| 519 | } |
---|
| 520 | |
---|
| 521 | case REAL_TYPE: |
---|
| 522 | { |
---|
| 523 | int size = int_size_in_bytes (type) * BITS_PER_UNIT; |
---|
| 524 | if (size == FLOAT_TYPE_SIZE) |
---|
| 525 | return T_FLOAT; |
---|
| 526 | if (size == DOUBLE_TYPE_SIZE) |
---|
| 527 | return T_DOUBLE; |
---|
| 528 | return 0; |
---|
| 529 | } |
---|
| 530 | |
---|
| 531 | case ARRAY_TYPE: |
---|
| 532 | { |
---|
| 533 | int m; |
---|
| 534 | if (level >= 6) |
---|
| 535 | return T_VOID; |
---|
| 536 | else |
---|
| 537 | m = plain_type_1 (TREE_TYPE (type), level+1); |
---|
| 538 | if (sdb_n_dims < SDB_MAX_DIM) |
---|
| 539 | sdb_dims[sdb_n_dims++] |
---|
| 540 | = (TYPE_DOMAIN (type) |
---|
| 541 | ? TREE_INT_CST_LOW (TYPE_MAX_VALUE (TYPE_DOMAIN (type))) + 1 |
---|
| 542 | : 0); |
---|
| 543 | return PUSH_DERIVED_LEVEL (DT_ARY, m); |
---|
| 544 | } |
---|
| 545 | |
---|
| 546 | case RECORD_TYPE: |
---|
| 547 | case UNION_TYPE: |
---|
| 548 | case QUAL_UNION_TYPE: |
---|
| 549 | case ENUMERAL_TYPE: |
---|
| 550 | { |
---|
| 551 | char *tag; |
---|
| 552 | #ifdef SDB_ALLOW_FORWARD_REFERENCES |
---|
| 553 | sdbout_record_type_name (type); |
---|
| 554 | #endif |
---|
| 555 | #ifndef SDB_ALLOW_UNKNOWN_REFERENCES |
---|
| 556 | if ((TREE_ASM_WRITTEN (type) && KNOWN_TYPE_TAG (type) != 0) |
---|
| 557 | #ifdef SDB_ALLOW_FORWARD_REFERENCES |
---|
| 558 | || TYPE_MODE (type) != VOIDmode |
---|
| 559 | #endif |
---|
| 560 | ) |
---|
| 561 | #endif |
---|
| 562 | { |
---|
| 563 | /* Output the referenced structure tag name |
---|
| 564 | only if the .def has already been finished. |
---|
| 565 | At least on 386, the Unix assembler |
---|
| 566 | cannot handle forward references to tags. */ |
---|
| 567 | /* But the 88100, it requires them, sigh... */ |
---|
| 568 | /* And the MIPS requires unknown refs as well... */ |
---|
| 569 | tag = KNOWN_TYPE_TAG (type); |
---|
| 570 | PUT_SDB_TAG (tag); |
---|
| 571 | /* These 3 lines used to follow the close brace. |
---|
| 572 | However, a size of 0 without a tag implies a tag of 0, |
---|
| 573 | so if we don't know a tag, we can't mention the size. */ |
---|
| 574 | sdb_type_size = int_size_in_bytes (type); |
---|
| 575 | if (sdb_type_size < 0) |
---|
| 576 | sdb_type_size = 0; |
---|
| 577 | } |
---|
| 578 | return ((TREE_CODE (type) == RECORD_TYPE) ? T_STRUCT |
---|
| 579 | : (TREE_CODE (type) == UNION_TYPE) ? T_UNION |
---|
| 580 | : (TREE_CODE (type) == QUAL_UNION_TYPE) ? T_UNION |
---|
| 581 | : T_ENUM); |
---|
| 582 | } |
---|
| 583 | case POINTER_TYPE: |
---|
| 584 | case REFERENCE_TYPE: |
---|
| 585 | { |
---|
| 586 | int m; |
---|
| 587 | if (level >= 6) |
---|
| 588 | return T_VOID; |
---|
| 589 | else |
---|
| 590 | m = plain_type_1 (TREE_TYPE (type), level+1); |
---|
| 591 | return PUSH_DERIVED_LEVEL (DT_PTR, m); |
---|
| 592 | } |
---|
| 593 | case FUNCTION_TYPE: |
---|
| 594 | case METHOD_TYPE: |
---|
| 595 | { |
---|
| 596 | int m; |
---|
| 597 | if (level >= 6) |
---|
| 598 | return T_VOID; |
---|
| 599 | else |
---|
| 600 | m = plain_type_1 (TREE_TYPE (type), level+1); |
---|
| 601 | return PUSH_DERIVED_LEVEL (DT_FCN, m); |
---|
| 602 | } |
---|
| 603 | default: |
---|
| 604 | return 0; |
---|
| 605 | } |
---|
| 606 | } |
---|
| 607 | |
---|
| 608 | /* Output the symbols defined in block number DO_BLOCK. |
---|
| 609 | Set NEXT_BLOCK_NUMBER to 0 before calling. |
---|
| 610 | |
---|
| 611 | This function works by walking the tree structure of blocks, |
---|
| 612 | counting blocks until it finds the desired block. */ |
---|
| 613 | |
---|
| 614 | static int do_block = 0; |
---|
| 615 | |
---|
| 616 | static int next_block_number; |
---|
| 617 | |
---|
| 618 | static void |
---|
| 619 | sdbout_block (block) |
---|
| 620 | register tree block; |
---|
| 621 | { |
---|
| 622 | while (block) |
---|
| 623 | { |
---|
| 624 | /* Ignore blocks never expanded or otherwise marked as real. */ |
---|
| 625 | if (TREE_USED (block)) |
---|
| 626 | { |
---|
| 627 | /* When we reach the specified block, output its symbols. */ |
---|
| 628 | if (next_block_number == do_block) |
---|
| 629 | { |
---|
| 630 | sdbout_syms (BLOCK_VARS (block)); |
---|
| 631 | } |
---|
| 632 | |
---|
| 633 | /* If we are past the specified block, stop the scan. */ |
---|
| 634 | if (next_block_number > do_block) |
---|
| 635 | return; |
---|
| 636 | |
---|
| 637 | next_block_number++; |
---|
| 638 | |
---|
| 639 | /* Scan the blocks within this block. */ |
---|
| 640 | sdbout_block (BLOCK_SUBBLOCKS (block)); |
---|
| 641 | } |
---|
| 642 | |
---|
| 643 | block = BLOCK_CHAIN (block); |
---|
| 644 | } |
---|
| 645 | } |
---|
| 646 | |
---|
| 647 | /* Call sdbout_symbol on each decl in the chain SYMS. */ |
---|
| 648 | |
---|
| 649 | static void |
---|
| 650 | sdbout_syms (syms) |
---|
| 651 | tree syms; |
---|
| 652 | { |
---|
| 653 | while (syms) |
---|
| 654 | { |
---|
| 655 | if (TREE_CODE (syms) != LABEL_DECL) |
---|
| 656 | sdbout_symbol (syms, 1); |
---|
| 657 | syms = TREE_CHAIN (syms); |
---|
| 658 | } |
---|
| 659 | } |
---|
| 660 | |
---|
| 661 | /* Output SDB information for a symbol described by DECL. |
---|
| 662 | LOCAL is nonzero if the symbol is not file-scope. */ |
---|
| 663 | |
---|
| 664 | void |
---|
| 665 | sdbout_symbol (decl, local) |
---|
| 666 | tree decl; |
---|
| 667 | int local; |
---|
| 668 | { |
---|
| 669 | tree type = TREE_TYPE (decl); |
---|
| 670 | tree context = NULL_TREE; |
---|
| 671 | rtx value; |
---|
| 672 | int regno = -1; |
---|
| 673 | char *name; |
---|
| 674 | |
---|
| 675 | sdbout_one_type (type); |
---|
| 676 | |
---|
| 677 | #if 0 /* This loses when functions are marked to be ignored, |
---|
| 678 | which happens in the C++ front end. */ |
---|
| 679 | if (DECL_IGNORED_P (decl)) |
---|
| 680 | return; |
---|
| 681 | #endif |
---|
| 682 | |
---|
| 683 | switch (TREE_CODE (decl)) |
---|
| 684 | { |
---|
| 685 | case CONST_DECL: |
---|
| 686 | /* Enum values are defined by defining the enum type. */ |
---|
| 687 | return; |
---|
| 688 | |
---|
| 689 | case FUNCTION_DECL: |
---|
| 690 | /* Don't mention a nested function under its parent. */ |
---|
| 691 | context = decl_function_context (decl); |
---|
| 692 | if (context == current_function_decl) |
---|
| 693 | return; |
---|
| 694 | if (DECL_EXTERNAL (decl)) |
---|
| 695 | return; |
---|
| 696 | if (GET_CODE (DECL_RTL (decl)) != MEM |
---|
| 697 | || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF) |
---|
| 698 | return; |
---|
| 699 | PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))); |
---|
| 700 | PUT_SDB_VAL (XEXP (DECL_RTL (decl), 0)); |
---|
| 701 | PUT_SDB_SCL (TREE_PUBLIC (decl) ? C_EXT : C_STAT); |
---|
| 702 | break; |
---|
| 703 | |
---|
| 704 | case TYPE_DECL: |
---|
| 705 | /* Done with tagged types. */ |
---|
| 706 | if (DECL_NAME (decl) == 0) |
---|
| 707 | return; |
---|
| 708 | if (DECL_IGNORED_P (decl)) |
---|
| 709 | return; |
---|
| 710 | |
---|
| 711 | /* Output typedef name. */ |
---|
| 712 | if (template_name_p (DECL_NAME (decl))) |
---|
| 713 | PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))); |
---|
| 714 | else |
---|
| 715 | PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_NAME (decl))); |
---|
| 716 | PUT_SDB_SCL (C_TPDEF); |
---|
| 717 | break; |
---|
| 718 | |
---|
| 719 | case PARM_DECL: |
---|
| 720 | /* Parm decls go in their own separate chains |
---|
| 721 | and are output by sdbout_reg_parms and sdbout_parms. */ |
---|
| 722 | abort (); |
---|
| 723 | |
---|
| 724 | case VAR_DECL: |
---|
| 725 | /* Don't mention a variable that is external. |
---|
| 726 | Let the file that defines it describe it. */ |
---|
| 727 | if (DECL_EXTERNAL (decl)) |
---|
| 728 | return; |
---|
| 729 | |
---|
| 730 | /* Ignore __FUNCTION__, etc. */ |
---|
| 731 | if (DECL_IGNORED_P (decl)) |
---|
| 732 | return; |
---|
| 733 | |
---|
| 734 | /* If there was an error in the declaration, don't dump core |
---|
| 735 | if there is no RTL associated with the variable doesn't |
---|
| 736 | exist. */ |
---|
| 737 | if (DECL_RTL (decl) == 0) |
---|
| 738 | return; |
---|
| 739 | |
---|
| 740 | DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, NULL_RTX); |
---|
| 741 | #ifdef LEAF_REG_REMAP |
---|
| 742 | if (leaf_function) |
---|
| 743 | leaf_renumber_regs_insn (DECL_RTL (decl)); |
---|
| 744 | #endif |
---|
| 745 | value = DECL_RTL (decl); |
---|
| 746 | |
---|
| 747 | /* Don't mention a variable at all |
---|
| 748 | if it was completely optimized into nothingness. |
---|
| 749 | |
---|
| 750 | If DECL was from an inline function, then its rtl |
---|
| 751 | is not identically the rtl that was used in this |
---|
| 752 | particular compilation. */ |
---|
| 753 | if (GET_CODE (value) == REG) |
---|
| 754 | { |
---|
| 755 | regno = REGNO (DECL_RTL (decl)); |
---|
| 756 | if (regno >= FIRST_PSEUDO_REGISTER) |
---|
| 757 | return; |
---|
| 758 | } |
---|
| 759 | else if (GET_CODE (value) == SUBREG) |
---|
| 760 | { |
---|
| 761 | int offset = 0; |
---|
| 762 | while (GET_CODE (value) == SUBREG) |
---|
| 763 | { |
---|
| 764 | offset += SUBREG_WORD (value); |
---|
| 765 | value = SUBREG_REG (value); |
---|
| 766 | } |
---|
| 767 | if (GET_CODE (value) == REG) |
---|
| 768 | { |
---|
| 769 | regno = REGNO (value); |
---|
| 770 | if (regno >= FIRST_PSEUDO_REGISTER) |
---|
| 771 | return; |
---|
| 772 | regno += offset; |
---|
| 773 | } |
---|
| 774 | alter_subreg (DECL_RTL (decl)); |
---|
| 775 | value = DECL_RTL (decl); |
---|
| 776 | } |
---|
| 777 | /* Don't output anything if an auto variable |
---|
| 778 | gets RTL that is static. |
---|
| 779 | GAS version 2.2 can't handle such output. */ |
---|
| 780 | else if (GET_CODE (value) == MEM && CONSTANT_P (XEXP (value, 0)) |
---|
| 781 | && ! TREE_STATIC (decl)) |
---|
| 782 | return; |
---|
| 783 | |
---|
| 784 | /* Emit any structure, union, or enum type that has not been output. |
---|
| 785 | This occurs for tag-less structs (et al) used to declare variables |
---|
| 786 | within functions. */ |
---|
| 787 | if (TREE_CODE (type) == ENUMERAL_TYPE |
---|
| 788 | || TREE_CODE (type) == RECORD_TYPE |
---|
| 789 | || TREE_CODE (type) == UNION_TYPE |
---|
| 790 | || TREE_CODE (type) == QUAL_UNION_TYPE) |
---|
| 791 | { |
---|
| 792 | if (TYPE_SIZE (type) != 0 /* not a forward reference */ |
---|
| 793 | && KNOWN_TYPE_TAG (type) == 0) /* not yet declared */ |
---|
| 794 | sdbout_one_type (type); |
---|
| 795 | } |
---|
| 796 | |
---|
| 797 | /* Defer SDB information for top-level initialized variables! */ |
---|
| 798 | if (! local |
---|
| 799 | && GET_CODE (value) == MEM |
---|
| 800 | && DECL_INITIAL (decl)) |
---|
| 801 | return; |
---|
| 802 | |
---|
| 803 | /* C++ in 2.3 makes nameless symbols. That will be fixed later. |
---|
| 804 | For now, avoid crashing. */ |
---|
| 805 | if (DECL_NAME (decl) == NULL_TREE) |
---|
| 806 | return; |
---|
| 807 | |
---|
| 808 | /* Record the name for, starting a symtab entry. */ |
---|
| 809 | name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); |
---|
| 810 | |
---|
| 811 | if (GET_CODE (value) == MEM |
---|
| 812 | && GET_CODE (XEXP (value, 0)) == SYMBOL_REF) |
---|
| 813 | { |
---|
| 814 | PUT_SDB_DEF (name); |
---|
| 815 | if (TREE_PUBLIC (decl)) |
---|
| 816 | { |
---|
| 817 | PUT_SDB_VAL (XEXP (value, 0)); |
---|
| 818 | PUT_SDB_SCL (C_EXT); |
---|
| 819 | } |
---|
| 820 | else |
---|
| 821 | { |
---|
| 822 | PUT_SDB_VAL (XEXP (value, 0)); |
---|
| 823 | PUT_SDB_SCL (C_STAT); |
---|
| 824 | } |
---|
| 825 | } |
---|
| 826 | else if (regno >= 0) |
---|
| 827 | { |
---|
| 828 | PUT_SDB_DEF (name); |
---|
| 829 | PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (regno)); |
---|
| 830 | PUT_SDB_SCL (C_REG); |
---|
| 831 | } |
---|
| 832 | else if (GET_CODE (value) == MEM |
---|
| 833 | && (GET_CODE (XEXP (value, 0)) == MEM |
---|
| 834 | || (GET_CODE (XEXP (value, 0)) == REG |
---|
| 835 | && REGNO (XEXP (value, 0)) != HARD_FRAME_POINTER_REGNUM |
---|
| 836 | && REGNO (XEXP (value, 0)) != STACK_POINTER_REGNUM))) |
---|
| 837 | /* If the value is indirect by memory or by a register |
---|
| 838 | that isn't the frame pointer |
---|
| 839 | then it means the object is variable-sized and address through |
---|
| 840 | that register or stack slot. COFF has no way to represent this |
---|
| 841 | so all we can do is output the variable as a pointer. */ |
---|
| 842 | { |
---|
| 843 | PUT_SDB_DEF (name); |
---|
| 844 | if (GET_CODE (XEXP (value, 0)) == REG) |
---|
| 845 | { |
---|
| 846 | PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (XEXP (value, 0)))); |
---|
| 847 | PUT_SDB_SCL (C_REG); |
---|
| 848 | } |
---|
| 849 | else |
---|
| 850 | { |
---|
| 851 | /* DECL_RTL looks like (MEM (MEM (PLUS (REG...) |
---|
| 852 | (CONST_INT...)))). |
---|
| 853 | We want the value of that CONST_INT. */ |
---|
| 854 | /* Encore compiler hates a newline in a macro arg, it seems. */ |
---|
| 855 | PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET |
---|
| 856 | (XEXP (XEXP (value, 0), 0))); |
---|
| 857 | PUT_SDB_SCL (C_AUTO); |
---|
| 858 | } |
---|
| 859 | |
---|
| 860 | type = build_pointer_type (TREE_TYPE (decl)); |
---|
| 861 | } |
---|
| 862 | else if (GET_CODE (value) == MEM |
---|
| 863 | && ((GET_CODE (XEXP (value, 0)) == PLUS |
---|
| 864 | && GET_CODE (XEXP (XEXP (value, 0), 0)) == REG |
---|
| 865 | && GET_CODE (XEXP (XEXP (value, 0), 1)) == CONST_INT) |
---|
| 866 | /* This is for variables which are at offset zero from |
---|
| 867 | the frame pointer. This happens on the Alpha. |
---|
| 868 | Non-frame pointer registers are excluded above. */ |
---|
| 869 | || (GET_CODE (XEXP (value, 0)) == REG))) |
---|
| 870 | { |
---|
| 871 | /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))) |
---|
| 872 | or (MEM (REG...)). We want the value of that CONST_INT |
---|
| 873 | or zero. */ |
---|
| 874 | PUT_SDB_DEF (name); |
---|
| 875 | PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET (XEXP (value, 0))); |
---|
| 876 | PUT_SDB_SCL (C_AUTO); |
---|
| 877 | } |
---|
| 878 | else if (GET_CODE (value) == MEM && GET_CODE (XEXP (value, 0)) == CONST) |
---|
| 879 | { |
---|
| 880 | /* Handle an obscure case which can arise when optimizing and |
---|
| 881 | when there are few available registers. (This is *always* |
---|
| 882 | the case for i386/i486 targets). The DECL_RTL looks like |
---|
| 883 | (MEM (CONST ...)) even though this variable is a local `auto' |
---|
| 884 | or a local `register' variable. In effect, what has happened |
---|
| 885 | is that the reload pass has seen that all assignments and |
---|
| 886 | references for one such a local variable can be replaced by |
---|
| 887 | equivalent assignments and references to some static storage |
---|
| 888 | variable, thereby avoiding the need for a register. In such |
---|
| 889 | cases we're forced to lie to debuggers and tell them that |
---|
| 890 | this variable was itself `static'. */ |
---|
| 891 | PUT_SDB_DEF (name); |
---|
| 892 | PUT_SDB_VAL (XEXP (XEXP (value, 0), 0)); |
---|
| 893 | PUT_SDB_SCL (C_STAT); |
---|
| 894 | } |
---|
| 895 | else |
---|
| 896 | { |
---|
| 897 | /* It is something we don't know how to represent for SDB. */ |
---|
| 898 | return; |
---|
| 899 | } |
---|
| 900 | break; |
---|
| 901 | } |
---|
| 902 | PUT_SDB_TYPE (plain_type (type)); |
---|
| 903 | PUT_SDB_ENDEF; |
---|
| 904 | } |
---|
| 905 | |
---|
| 906 | /* Output SDB information for a top-level initialized variable |
---|
| 907 | that has been delayed. */ |
---|
| 908 | |
---|
| 909 | void |
---|
| 910 | sdbout_toplevel_data (decl) |
---|
| 911 | tree decl; |
---|
| 912 | { |
---|
| 913 | tree type = TREE_TYPE (decl); |
---|
| 914 | |
---|
| 915 | if (DECL_IGNORED_P (decl)) |
---|
| 916 | return; |
---|
| 917 | |
---|
| 918 | if (! (TREE_CODE (decl) == VAR_DECL |
---|
| 919 | && GET_CODE (DECL_RTL (decl)) == MEM |
---|
| 920 | && DECL_INITIAL (decl))) |
---|
| 921 | abort (); |
---|
| 922 | |
---|
| 923 | PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))); |
---|
| 924 | PUT_SDB_VAL (XEXP (DECL_RTL (decl), 0)); |
---|
| 925 | if (TREE_PUBLIC (decl)) |
---|
| 926 | { |
---|
| 927 | PUT_SDB_SCL (C_EXT); |
---|
| 928 | } |
---|
| 929 | else |
---|
| 930 | { |
---|
| 931 | PUT_SDB_SCL (C_STAT); |
---|
| 932 | } |
---|
| 933 | PUT_SDB_TYPE (plain_type (type)); |
---|
| 934 | PUT_SDB_ENDEF; |
---|
| 935 | } |
---|
| 936 | |
---|
| 937 | #ifdef SDB_ALLOW_FORWARD_REFERENCES |
---|
| 938 | |
---|
| 939 | /* Machinery to record and output anonymous types. */ |
---|
| 940 | |
---|
| 941 | static tree anonymous_types; |
---|
| 942 | |
---|
| 943 | static void |
---|
| 944 | sdbout_queue_anonymous_type (type) |
---|
| 945 | tree type; |
---|
| 946 | { |
---|
| 947 | anonymous_types = saveable_tree_cons (NULL_TREE, type, anonymous_types); |
---|
| 948 | } |
---|
| 949 | |
---|
| 950 | static void |
---|
| 951 | sdbout_dequeue_anonymous_types () |
---|
| 952 | { |
---|
| 953 | register tree types, link; |
---|
| 954 | |
---|
| 955 | while (anonymous_types) |
---|
| 956 | { |
---|
| 957 | types = nreverse (anonymous_types); |
---|
| 958 | anonymous_types = NULL_TREE; |
---|
| 959 | |
---|
| 960 | for (link = types; link; link = TREE_CHAIN (link)) |
---|
| 961 | { |
---|
| 962 | register tree type = TREE_VALUE (link); |
---|
| 963 | |
---|
| 964 | if (type && ! TREE_ASM_WRITTEN (type)) |
---|
| 965 | sdbout_one_type (type); |
---|
| 966 | } |
---|
| 967 | } |
---|
| 968 | } |
---|
| 969 | |
---|
| 970 | #endif |
---|
| 971 | |
---|
| 972 | /* Given a chain of ..._TYPE nodes, all of which have names, |
---|
| 973 | output definitions of those names, as typedefs. */ |
---|
| 974 | |
---|
| 975 | void |
---|
| 976 | sdbout_types (types) |
---|
| 977 | register tree types; |
---|
| 978 | { |
---|
| 979 | register tree link; |
---|
| 980 | |
---|
| 981 | for (link = types; link; link = TREE_CHAIN (link)) |
---|
| 982 | sdbout_one_type (link); |
---|
| 983 | |
---|
| 984 | #ifdef SDB_ALLOW_FORWARD_REFERENCES |
---|
| 985 | sdbout_dequeue_anonymous_types (); |
---|
| 986 | #endif |
---|
| 987 | } |
---|
| 988 | |
---|
| 989 | static void |
---|
| 990 | sdbout_type (type) |
---|
| 991 | tree type; |
---|
| 992 | { |
---|
| 993 | if (type == error_mark_node) |
---|
| 994 | type = integer_type_node; |
---|
| 995 | PUT_SDB_TYPE (plain_type (type)); |
---|
| 996 | } |
---|
| 997 | |
---|
| 998 | /* Output types of the fields of type TYPE, if they are structs. |
---|
| 999 | |
---|
| 1000 | Formerly did not chase through pointer types, since that could be circular. |
---|
| 1001 | They must come before TYPE, since forward refs are not allowed. |
---|
| 1002 | Now james@bigtex.cactus.org says to try them. */ |
---|
| 1003 | |
---|
| 1004 | static void |
---|
| 1005 | sdbout_field_types (type) |
---|
| 1006 | tree type; |
---|
| 1007 | { |
---|
| 1008 | tree tail; |
---|
| 1009 | for (tail = TYPE_FIELDS (type); tail; tail = TREE_CHAIN (tail)) |
---|
| 1010 | if (TREE_CODE (TREE_TYPE (tail)) == POINTER_TYPE) |
---|
| 1011 | sdbout_one_type (TREE_TYPE (TREE_TYPE (tail))); |
---|
| 1012 | else |
---|
| 1013 | sdbout_one_type (TREE_TYPE (tail)); |
---|
| 1014 | } |
---|
| 1015 | |
---|
| 1016 | /* Use this to put out the top level defined record and union types |
---|
| 1017 | for later reference. If this is a struct with a name, then put that |
---|
| 1018 | name out. Other unnamed structs will have .xxfake labels generated so |
---|
| 1019 | that they may be referred to later. |
---|
| 1020 | The label will be stored in the KNOWN_TYPE_TAG slot of a type. |
---|
| 1021 | It may NOT be called recursively. */ |
---|
| 1022 | |
---|
| 1023 | static void |
---|
| 1024 | sdbout_one_type (type) |
---|
| 1025 | tree type; |
---|
| 1026 | { |
---|
| 1027 | if (current_function_decl != NULL_TREE |
---|
| 1028 | && DECL_SECTION_NAME (current_function_decl) != NULL_TREE) |
---|
| 1029 | ; /* Don't change section amid function. */ |
---|
| 1030 | else |
---|
| 1031 | text_section (); |
---|
| 1032 | |
---|
| 1033 | switch (TREE_CODE (type)) |
---|
| 1034 | { |
---|
| 1035 | case RECORD_TYPE: |
---|
| 1036 | case UNION_TYPE: |
---|
| 1037 | case QUAL_UNION_TYPE: |
---|
| 1038 | case ENUMERAL_TYPE: |
---|
| 1039 | type = TYPE_MAIN_VARIANT (type); |
---|
| 1040 | /* Don't output a type twice. */ |
---|
| 1041 | if (TREE_ASM_WRITTEN (type)) |
---|
| 1042 | /* James said test TREE_ASM_BEING_WRITTEN here. */ |
---|
| 1043 | return; |
---|
| 1044 | |
---|
| 1045 | /* Output nothing if type is not yet defined. */ |
---|
| 1046 | if (TYPE_SIZE (type) == 0) |
---|
| 1047 | return; |
---|
| 1048 | |
---|
| 1049 | TREE_ASM_WRITTEN (type) = 1; |
---|
| 1050 | #if 1 |
---|
| 1051 | /* This is reputed to cause trouble with the following case, |
---|
| 1052 | but perhaps checking TYPE_SIZE above will fix it. */ |
---|
| 1053 | |
---|
| 1054 | /* Here is a test case: |
---|
| 1055 | |
---|
| 1056 | struct foo { |
---|
| 1057 | struct badstr *bbb; |
---|
| 1058 | } forwardref; |
---|
| 1059 | |
---|
| 1060 | typedef struct intermediate { |
---|
| 1061 | int aaaa; |
---|
| 1062 | } intermediate_ref; |
---|
| 1063 | |
---|
| 1064 | typedef struct badstr { |
---|
| 1065 | int ccccc; |
---|
| 1066 | } badtype; */ |
---|
| 1067 | |
---|
| 1068 | #if 0 |
---|
| 1069 | TREE_ASM_BEING_WRITTEN (type) = 1; |
---|
| 1070 | #endif |
---|
| 1071 | /* This change, which ought to make better output, |
---|
| 1072 | used to make the COFF assembler unhappy. |
---|
| 1073 | Changes involving KNOWN_TYPE_TAG may fix the problem. */ |
---|
| 1074 | /* Before really doing anything, output types we want to refer to. */ |
---|
| 1075 | /* Note that in version 1 the following two lines |
---|
| 1076 | are not used if forward references are in use. */ |
---|
| 1077 | if (TREE_CODE (type) != ENUMERAL_TYPE) |
---|
| 1078 | sdbout_field_types (type); |
---|
| 1079 | #if 0 |
---|
| 1080 | TREE_ASM_WRITTEN (type) = 1; |
---|
| 1081 | #endif |
---|
| 1082 | #endif |
---|
| 1083 | |
---|
| 1084 | /* Output a structure type. */ |
---|
| 1085 | { |
---|
| 1086 | int size = int_size_in_bytes (type); |
---|
| 1087 | int member_scl; |
---|
| 1088 | tree tem; |
---|
| 1089 | int i, n_baseclasses = 0; |
---|
| 1090 | |
---|
| 1091 | /* Record the type tag, but not in its permanent place just yet. */ |
---|
| 1092 | sdbout_record_type_name (type); |
---|
| 1093 | |
---|
| 1094 | PUT_SDB_DEF (KNOWN_TYPE_TAG (type)); |
---|
| 1095 | |
---|
| 1096 | switch (TREE_CODE (type)) |
---|
| 1097 | { |
---|
| 1098 | case UNION_TYPE: |
---|
| 1099 | case QUAL_UNION_TYPE: |
---|
| 1100 | PUT_SDB_SCL (C_UNTAG); |
---|
| 1101 | PUT_SDB_TYPE (T_UNION); |
---|
| 1102 | member_scl = C_MOU; |
---|
| 1103 | break; |
---|
| 1104 | |
---|
| 1105 | case RECORD_TYPE: |
---|
| 1106 | PUT_SDB_SCL (C_STRTAG); |
---|
| 1107 | PUT_SDB_TYPE (T_STRUCT); |
---|
| 1108 | member_scl = C_MOS; |
---|
| 1109 | break; |
---|
| 1110 | |
---|
| 1111 | case ENUMERAL_TYPE: |
---|
| 1112 | PUT_SDB_SCL (C_ENTAG); |
---|
| 1113 | PUT_SDB_TYPE (T_ENUM); |
---|
| 1114 | member_scl = C_MOE; |
---|
| 1115 | break; |
---|
| 1116 | } |
---|
| 1117 | |
---|
| 1118 | PUT_SDB_SIZE (size); |
---|
| 1119 | PUT_SDB_ENDEF; |
---|
| 1120 | |
---|
| 1121 | /* Print out the base class information with fields |
---|
| 1122 | named after the types they hold. */ |
---|
| 1123 | if (TYPE_BINFO (type) |
---|
| 1124 | && TYPE_BINFO_BASETYPES (type)) |
---|
| 1125 | n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type)); |
---|
| 1126 | for (i = 0; i < n_baseclasses; i++) |
---|
| 1127 | { |
---|
| 1128 | tree child = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (type)), i); |
---|
| 1129 | tree child_type = BINFO_TYPE (child); |
---|
| 1130 | tree child_type_name; |
---|
| 1131 | if (TYPE_NAME (child_type) == 0) |
---|
| 1132 | continue; |
---|
| 1133 | if (TREE_CODE (TYPE_NAME (child_type)) == IDENTIFIER_NODE) |
---|
| 1134 | child_type_name = TYPE_NAME (child_type); |
---|
| 1135 | else if (TREE_CODE (TYPE_NAME (child_type)) == TYPE_DECL) |
---|
| 1136 | { |
---|
| 1137 | child_type_name = DECL_NAME (TYPE_NAME (child_type)); |
---|
| 1138 | if (child_type_name && template_name_p (child_type_name)) |
---|
| 1139 | child_type_name |
---|
| 1140 | = DECL_ASSEMBLER_NAME (TYPE_NAME (child_type)); |
---|
| 1141 | } |
---|
| 1142 | else |
---|
| 1143 | continue; |
---|
| 1144 | |
---|
| 1145 | CONTIN; |
---|
| 1146 | PUT_SDB_DEF (IDENTIFIER_POINTER (child_type_name)); |
---|
| 1147 | PUT_SDB_INT_VAL (TREE_INT_CST_LOW (BINFO_OFFSET (child))); |
---|
| 1148 | PUT_SDB_SCL (member_scl); |
---|
| 1149 | sdbout_type (BINFO_TYPE (child)); |
---|
| 1150 | PUT_SDB_ENDEF; |
---|
| 1151 | } |
---|
| 1152 | |
---|
| 1153 | /* output the individual fields */ |
---|
| 1154 | |
---|
| 1155 | if (TREE_CODE (type) == ENUMERAL_TYPE) |
---|
| 1156 | for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem)) |
---|
| 1157 | { |
---|
| 1158 | PUT_SDB_DEF (IDENTIFIER_POINTER (TREE_PURPOSE (tem))); |
---|
| 1159 | PUT_SDB_INT_VAL (TREE_INT_CST_LOW (TREE_VALUE (tem))); |
---|
| 1160 | PUT_SDB_SCL (C_MOE); |
---|
| 1161 | PUT_SDB_TYPE (T_MOE); |
---|
| 1162 | PUT_SDB_ENDEF; |
---|
| 1163 | } |
---|
| 1164 | |
---|
| 1165 | else /* record or union type */ |
---|
| 1166 | for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem)) |
---|
| 1167 | /* Output the name, type, position (in bits), size (in bits) |
---|
| 1168 | of each field. */ |
---|
| 1169 | |
---|
| 1170 | /* Omit here the nameless fields that are used to skip bits. |
---|
| 1171 | Also omit fields with variable size or position. |
---|
| 1172 | Also omit non FIELD_DECL nodes that GNU C++ may put here. */ |
---|
| 1173 | if (TREE_CODE (tem) == FIELD_DECL |
---|
| 1174 | && DECL_NAME (tem) != 0 |
---|
| 1175 | && TREE_CODE (DECL_SIZE (tem)) == INTEGER_CST |
---|
| 1176 | && TREE_CODE (DECL_FIELD_BITPOS (tem)) == INTEGER_CST) |
---|
| 1177 | { |
---|
| 1178 | char *name; |
---|
| 1179 | |
---|
| 1180 | CONTIN; |
---|
| 1181 | name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem)); |
---|
| 1182 | PUT_SDB_DEF (name); |
---|
| 1183 | if (DECL_BIT_FIELD_TYPE (tem)) |
---|
| 1184 | { |
---|
| 1185 | PUT_SDB_INT_VAL (TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem))); |
---|
| 1186 | PUT_SDB_SCL (C_FIELD); |
---|
| 1187 | sdbout_type (DECL_BIT_FIELD_TYPE (tem)); |
---|
| 1188 | PUT_SDB_SIZE (TREE_INT_CST_LOW (DECL_SIZE (tem))); |
---|
| 1189 | } |
---|
| 1190 | else |
---|
| 1191 | { |
---|
| 1192 | PUT_SDB_INT_VAL (TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)) |
---|
| 1193 | / BITS_PER_UNIT); |
---|
| 1194 | PUT_SDB_SCL (member_scl); |
---|
| 1195 | sdbout_type (TREE_TYPE (tem)); |
---|
| 1196 | } |
---|
| 1197 | PUT_SDB_ENDEF; |
---|
| 1198 | } |
---|
| 1199 | /* output end of a structure,union, or enumeral definition */ |
---|
| 1200 | |
---|
| 1201 | PUT_SDB_PLAIN_DEF ("eos"); |
---|
| 1202 | PUT_SDB_INT_VAL (size); |
---|
| 1203 | PUT_SDB_SCL (C_EOS); |
---|
| 1204 | PUT_SDB_TAG (KNOWN_TYPE_TAG (type)); |
---|
| 1205 | PUT_SDB_SIZE (size); |
---|
| 1206 | PUT_SDB_ENDEF; |
---|
| 1207 | break; |
---|
| 1208 | } |
---|
| 1209 | } |
---|
| 1210 | } |
---|
| 1211 | |
---|
| 1212 | /* The following two functions output definitions of function parameters. |
---|
| 1213 | Each parameter gets a definition locating it in the parameter list. |
---|
| 1214 | Each parameter that is a register variable gets a second definition |
---|
| 1215 | locating it in the register. |
---|
| 1216 | |
---|
| 1217 | Printing or argument lists in gdb uses the definitions that |
---|
| 1218 | locate in the parameter list. But reference to the variable in |
---|
| 1219 | expressions uses preferentially the definition as a register. */ |
---|
| 1220 | |
---|
| 1221 | /* Output definitions, referring to storage in the parmlist, |
---|
| 1222 | of all the parms in PARMS, which is a chain of PARM_DECL nodes. */ |
---|
| 1223 | |
---|
| 1224 | static void |
---|
| 1225 | sdbout_parms (parms) |
---|
| 1226 | tree parms; |
---|
| 1227 | { |
---|
| 1228 | for (; parms; parms = TREE_CHAIN (parms)) |
---|
| 1229 | if (DECL_NAME (parms)) |
---|
| 1230 | { |
---|
| 1231 | int current_sym_value = 0; |
---|
| 1232 | char *name = IDENTIFIER_POINTER (DECL_NAME (parms)); |
---|
| 1233 | |
---|
| 1234 | if (name == 0 || *name == 0) |
---|
| 1235 | name = gen_fake_label (); |
---|
| 1236 | |
---|
| 1237 | /* Perform any necessary register eliminations on the parameter's rtl, |
---|
| 1238 | so that the debugging output will be accurate. */ |
---|
| 1239 | DECL_INCOMING_RTL (parms) = |
---|
| 1240 | eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX); |
---|
| 1241 | DECL_RTL (parms) = eliminate_regs (DECL_RTL (parms), 0, NULL_RTX); |
---|
| 1242 | |
---|
| 1243 | if (PARM_PASSED_IN_MEMORY (parms)) |
---|
| 1244 | { |
---|
| 1245 | rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0); |
---|
| 1246 | tree type; |
---|
| 1247 | |
---|
| 1248 | /* ??? Here we assume that the parm address is indexed |
---|
| 1249 | off the frame pointer or arg pointer. |
---|
| 1250 | If that is not true, we produce meaningless results, |
---|
| 1251 | but do not crash. */ |
---|
| 1252 | if (GET_CODE (addr) == PLUS |
---|
| 1253 | && GET_CODE (XEXP (addr, 1)) == CONST_INT) |
---|
| 1254 | current_sym_value = INTVAL (XEXP (addr, 1)); |
---|
| 1255 | else |
---|
| 1256 | current_sym_value = 0; |
---|
| 1257 | |
---|
| 1258 | if (GET_CODE (DECL_RTL (parms)) == REG |
---|
| 1259 | && REGNO (DECL_RTL (parms)) >= 0 |
---|
| 1260 | && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER) |
---|
| 1261 | type = DECL_ARG_TYPE (parms); |
---|
| 1262 | else |
---|
| 1263 | { |
---|
| 1264 | int original_sym_value = current_sym_value; |
---|
| 1265 | |
---|
| 1266 | /* This is the case where the parm is passed as an int or |
---|
| 1267 | double and it is converted to a char, short or float |
---|
| 1268 | and stored back in the parmlist. In this case, describe |
---|
| 1269 | the parm with the variable's declared type, and adjust |
---|
| 1270 | the address if the least significant bytes (which we are |
---|
| 1271 | using) are not the first ones. */ |
---|
| 1272 | if (BYTES_BIG_ENDIAN |
---|
| 1273 | && TREE_TYPE (parms) != DECL_ARG_TYPE (parms)) |
---|
| 1274 | current_sym_value += |
---|
| 1275 | (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms))) |
---|
| 1276 | - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms)))); |
---|
| 1277 | |
---|
| 1278 | if (GET_CODE (DECL_RTL (parms)) == MEM |
---|
| 1279 | && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS |
---|
| 1280 | && (GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) |
---|
| 1281 | == CONST_INT) |
---|
| 1282 | && (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) |
---|
| 1283 | == current_sym_value)) |
---|
| 1284 | type = TREE_TYPE (parms); |
---|
| 1285 | else |
---|
| 1286 | { |
---|
| 1287 | current_sym_value = original_sym_value; |
---|
| 1288 | type = DECL_ARG_TYPE (parms); |
---|
| 1289 | } |
---|
| 1290 | } |
---|
| 1291 | |
---|
| 1292 | PUT_SDB_DEF (name); |
---|
| 1293 | PUT_SDB_INT_VAL (DEBUGGER_ARG_OFFSET (current_sym_value, addr)); |
---|
| 1294 | PUT_SDB_SCL (C_ARG); |
---|
| 1295 | PUT_SDB_TYPE (plain_type (type)); |
---|
| 1296 | PUT_SDB_ENDEF; |
---|
| 1297 | } |
---|
| 1298 | else if (GET_CODE (DECL_RTL (parms)) == REG) |
---|
| 1299 | { |
---|
| 1300 | rtx best_rtl; |
---|
| 1301 | /* Parm passed in registers and lives in registers or nowhere. */ |
---|
| 1302 | |
---|
| 1303 | /* If parm lives in a register, use that register; |
---|
| 1304 | pretend the parm was passed there. It would be more consistent |
---|
| 1305 | to describe the register where the parm was passed, |
---|
| 1306 | but in practice that register usually holds something else. */ |
---|
| 1307 | if (REGNO (DECL_RTL (parms)) >= 0 |
---|
| 1308 | && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER) |
---|
| 1309 | best_rtl = DECL_RTL (parms); |
---|
| 1310 | /* If the parm lives nowhere, |
---|
| 1311 | use the register where it was passed. */ |
---|
| 1312 | else |
---|
| 1313 | best_rtl = DECL_INCOMING_RTL (parms); |
---|
| 1314 | |
---|
| 1315 | PUT_SDB_DEF (name); |
---|
| 1316 | PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (best_rtl))); |
---|
| 1317 | PUT_SDB_SCL (C_REGPARM); |
---|
| 1318 | PUT_SDB_TYPE (plain_type (TREE_TYPE (parms), 0)); |
---|
| 1319 | PUT_SDB_ENDEF; |
---|
| 1320 | } |
---|
| 1321 | else if (GET_CODE (DECL_RTL (parms)) == MEM |
---|
| 1322 | && XEXP (DECL_RTL (parms), 0) != const0_rtx) |
---|
| 1323 | { |
---|
| 1324 | /* Parm was passed in registers but lives on the stack. */ |
---|
| 1325 | |
---|
| 1326 | /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))), |
---|
| 1327 | in which case we want the value of that CONST_INT, |
---|
| 1328 | or (MEM (REG ...)) or (MEM (MEM ...)), |
---|
| 1329 | in which case we use a value of zero. */ |
---|
| 1330 | if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG |
---|
| 1331 | || GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM) |
---|
| 1332 | current_sym_value = 0; |
---|
| 1333 | else |
---|
| 1334 | current_sym_value = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)); |
---|
| 1335 | |
---|
| 1336 | /* Again, this assumes the offset is based on the arg pointer. */ |
---|
| 1337 | PUT_SDB_DEF (name); |
---|
| 1338 | PUT_SDB_INT_VAL (DEBUGGER_ARG_OFFSET (current_sym_value, |
---|
| 1339 | XEXP (DECL_RTL (parms), 0))); |
---|
| 1340 | PUT_SDB_SCL (C_ARG); |
---|
| 1341 | PUT_SDB_TYPE (plain_type (TREE_TYPE (parms), 0)); |
---|
| 1342 | PUT_SDB_ENDEF; |
---|
| 1343 | } |
---|
| 1344 | } |
---|
| 1345 | } |
---|
| 1346 | |
---|
| 1347 | /* Output definitions for the places where parms live during the function, |
---|
| 1348 | when different from where they were passed, when the parms were passed |
---|
| 1349 | in memory. |
---|
| 1350 | |
---|
| 1351 | It is not useful to do this for parms passed in registers |
---|
| 1352 | that live during the function in different registers, because it is |
---|
| 1353 | impossible to look in the passed register for the passed value, |
---|
| 1354 | so we use the within-the-function register to begin with. |
---|
| 1355 | |
---|
| 1356 | PARMS is a chain of PARM_DECL nodes. */ |
---|
| 1357 | |
---|
| 1358 | static void |
---|
| 1359 | sdbout_reg_parms (parms) |
---|
| 1360 | tree parms; |
---|
| 1361 | { |
---|
| 1362 | for (; parms; parms = TREE_CHAIN (parms)) |
---|
| 1363 | if (DECL_NAME (parms)) |
---|
| 1364 | { |
---|
| 1365 | char *name = IDENTIFIER_POINTER (DECL_NAME (parms)); |
---|
| 1366 | |
---|
| 1367 | /* Report parms that live in registers during the function |
---|
| 1368 | but were passed in memory. */ |
---|
| 1369 | if (GET_CODE (DECL_RTL (parms)) == REG |
---|
| 1370 | && REGNO (DECL_RTL (parms)) >= 0 |
---|
| 1371 | && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER |
---|
| 1372 | && PARM_PASSED_IN_MEMORY (parms)) |
---|
| 1373 | { |
---|
| 1374 | if (name == 0 || *name == 0) |
---|
| 1375 | name = gen_fake_label (); |
---|
| 1376 | PUT_SDB_DEF (name); |
---|
| 1377 | PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (DECL_RTL (parms)))); |
---|
| 1378 | PUT_SDB_SCL (C_REG); |
---|
| 1379 | PUT_SDB_TYPE (plain_type (TREE_TYPE (parms), 0)); |
---|
| 1380 | PUT_SDB_ENDEF; |
---|
| 1381 | } |
---|
| 1382 | /* Report parms that live in memory but not where they were passed. */ |
---|
| 1383 | else if (GET_CODE (DECL_RTL (parms)) == MEM |
---|
| 1384 | && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS |
---|
| 1385 | && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT |
---|
| 1386 | && PARM_PASSED_IN_MEMORY (parms) |
---|
| 1387 | && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms))) |
---|
| 1388 | { |
---|
| 1389 | #if 0 /* ??? It is not clear yet what should replace this. */ |
---|
| 1390 | int offset = DECL_OFFSET (parms) / BITS_PER_UNIT; |
---|
| 1391 | /* A parm declared char is really passed as an int, |
---|
| 1392 | so it occupies the least significant bytes. |
---|
| 1393 | On a big-endian machine those are not the low-numbered ones. */ |
---|
| 1394 | if (BYTES_BIG_ENDIAN |
---|
| 1395 | && offset != -1 |
---|
| 1396 | && TREE_TYPE (parms) != DECL_ARG_TYPE (parms)) |
---|
| 1397 | offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms))) |
---|
| 1398 | - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms)))); |
---|
| 1399 | if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...} |
---|
| 1400 | #endif |
---|
| 1401 | { |
---|
| 1402 | if (name == 0 || *name == 0) |
---|
| 1403 | name = gen_fake_label (); |
---|
| 1404 | PUT_SDB_DEF (name); |
---|
| 1405 | PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET |
---|
| 1406 | (XEXP (DECL_RTL (parms), 0))); |
---|
| 1407 | PUT_SDB_SCL (C_AUTO); |
---|
| 1408 | PUT_SDB_TYPE (plain_type (TREE_TYPE (parms))); |
---|
| 1409 | PUT_SDB_ENDEF; |
---|
| 1410 | } |
---|
| 1411 | } |
---|
| 1412 | } |
---|
| 1413 | } |
---|
| 1414 | |
---|
| 1415 | /* Describe the beginning of an internal block within a function. |
---|
| 1416 | Also output descriptions of variables defined in this block. |
---|
| 1417 | |
---|
| 1418 | N is the number of the block, by order of beginning, counting from 1, |
---|
| 1419 | and not counting the outermost (function top-level) block. |
---|
| 1420 | The blocks match the BLOCKs in DECL_INITIAL (current_function_decl), |
---|
| 1421 | if the count starts at 0 for the outermost one. */ |
---|
| 1422 | |
---|
| 1423 | void |
---|
| 1424 | sdbout_begin_block (file, line, n) |
---|
| 1425 | FILE *file; |
---|
| 1426 | int line; |
---|
| 1427 | int n; |
---|
| 1428 | { |
---|
| 1429 | tree decl = current_function_decl; |
---|
| 1430 | MAKE_LINE_SAFE (line); |
---|
| 1431 | |
---|
| 1432 | /* The SCO compiler does not emit a separate block for the function level |
---|
| 1433 | scope, so we avoid it here also. However, mips ECOFF compilers do emit |
---|
| 1434 | a separate block, so we retain it when MIPS_DEBUGGING_INFO is defined. */ |
---|
| 1435 | #ifndef MIPS_DEBUGGING_INFO |
---|
| 1436 | if (n != 1) |
---|
| 1437 | #endif |
---|
| 1438 | PUT_SDB_BLOCK_START (line - sdb_begin_function_line); |
---|
| 1439 | |
---|
| 1440 | if (n == 1) |
---|
| 1441 | { |
---|
| 1442 | /* Include the outermost BLOCK's variables in block 1. */ |
---|
| 1443 | next_block_number = 0; |
---|
| 1444 | do_block = 0; |
---|
| 1445 | sdbout_block (DECL_INITIAL (decl)); |
---|
| 1446 | } |
---|
| 1447 | /* If -g1, suppress all the internal symbols of functions |
---|
| 1448 | except for arguments. */ |
---|
| 1449 | if (debug_info_level != DINFO_LEVEL_TERSE) |
---|
| 1450 | { |
---|
| 1451 | next_block_number = 0; |
---|
| 1452 | do_block = n; |
---|
| 1453 | sdbout_block (DECL_INITIAL (decl)); |
---|
| 1454 | } |
---|
| 1455 | |
---|
| 1456 | #ifdef SDB_ALLOW_FORWARD_REFERENCES |
---|
| 1457 | sdbout_dequeue_anonymous_types (); |
---|
| 1458 | #endif |
---|
| 1459 | } |
---|
| 1460 | |
---|
| 1461 | /* Describe the end line-number of an internal block within a function. */ |
---|
| 1462 | |
---|
| 1463 | void |
---|
| 1464 | sdbout_end_block (file, line, n) |
---|
| 1465 | FILE *file; |
---|
| 1466 | int line; |
---|
| 1467 | int n; |
---|
| 1468 | { |
---|
| 1469 | MAKE_LINE_SAFE (line); |
---|
| 1470 | |
---|
| 1471 | /* The SCO compiler does not emit a separate block for the function level |
---|
| 1472 | scope, so we avoid it here also. However, mips ECOFF compilers do emit |
---|
| 1473 | a separate block, so we retain it when MIPS_DEBUGGING_INFO is defined. */ |
---|
| 1474 | #ifndef MIPS_DEBUGGING_INFO |
---|
| 1475 | if (n != 1) |
---|
| 1476 | #endif |
---|
| 1477 | PUT_SDB_BLOCK_END (line - sdb_begin_function_line); |
---|
| 1478 | } |
---|
| 1479 | |
---|
| 1480 | /* Output sdb info for the current function name. |
---|
| 1481 | Called from assemble_start_function. */ |
---|
| 1482 | |
---|
| 1483 | void |
---|
| 1484 | sdbout_mark_begin_function () |
---|
| 1485 | { |
---|
| 1486 | sdbout_symbol (current_function_decl, 0); |
---|
| 1487 | } |
---|
| 1488 | |
---|
| 1489 | /* Called at beginning of function body (after prologue). |
---|
| 1490 | Record the function's starting line number, so we can output |
---|
| 1491 | relative line numbers for the other lines. |
---|
| 1492 | Describe beginning of outermost block. |
---|
| 1493 | Also describe the parameter list. */ |
---|
| 1494 | |
---|
| 1495 | void |
---|
| 1496 | sdbout_begin_function (line) |
---|
| 1497 | int line; |
---|
| 1498 | { |
---|
| 1499 | sdb_begin_function_line = line - 1; |
---|
| 1500 | PUT_SDB_FUNCTION_START (line); |
---|
| 1501 | sdbout_parms (DECL_ARGUMENTS (current_function_decl)); |
---|
| 1502 | sdbout_reg_parms (DECL_ARGUMENTS (current_function_decl)); |
---|
| 1503 | } |
---|
| 1504 | |
---|
| 1505 | /* Called at end of function (before epilogue). |
---|
| 1506 | Describe end of outermost block. */ |
---|
| 1507 | |
---|
| 1508 | void |
---|
| 1509 | sdbout_end_function (line) |
---|
| 1510 | int line; |
---|
| 1511 | { |
---|
| 1512 | #ifdef SDB_ALLOW_FORWARD_REFERENCES |
---|
| 1513 | sdbout_dequeue_anonymous_types (); |
---|
| 1514 | #endif |
---|
| 1515 | |
---|
| 1516 | MAKE_LINE_SAFE (line); |
---|
| 1517 | PUT_SDB_FUNCTION_END (line - sdb_begin_function_line); |
---|
| 1518 | |
---|
| 1519 | /* Indicate we are between functions, for line-number output. */ |
---|
| 1520 | sdb_begin_function_line = -1; |
---|
| 1521 | } |
---|
| 1522 | |
---|
| 1523 | /* Output sdb info for the absolute end of a function. |
---|
| 1524 | Called after the epilogue is output. */ |
---|
| 1525 | |
---|
| 1526 | void |
---|
| 1527 | sdbout_end_epilogue () |
---|
| 1528 | { |
---|
| 1529 | char *name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)); |
---|
| 1530 | PUT_SDB_EPILOGUE_END (name); |
---|
| 1531 | } |
---|
| 1532 | |
---|
| 1533 | /* Output sdb info for the given label. Called only if LABEL_NAME (insn) |
---|
| 1534 | is present. */ |
---|
| 1535 | |
---|
| 1536 | void |
---|
| 1537 | sdbout_label (insn) |
---|
| 1538 | register rtx insn; |
---|
| 1539 | { |
---|
| 1540 | PUT_SDB_DEF (LABEL_NAME (insn)); |
---|
| 1541 | PUT_SDB_VAL (insn); |
---|
| 1542 | PUT_SDB_SCL (C_LABEL); |
---|
| 1543 | PUT_SDB_TYPE (T_NULL); |
---|
| 1544 | PUT_SDB_ENDEF; |
---|
| 1545 | } |
---|
| 1546 | |
---|
| 1547 | #endif /* SDB_DEBUGGING_INFO */ |
---|