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1 /* |
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2 |
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3 Copyright (C) 2000,2004 Silicon Graphics, Inc. All Rights Reserved. |
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4 |
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5 This program is free software; you can redistribute it and/or modify it |
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6 under the terms of version 2.1 of the GNU Lesser General Public License |
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7 as published by the Free Software Foundation. |
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8 |
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9 This program is distributed in the hope that it would be useful, but |
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10 WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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12 |
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13 Further, this software is distributed without any warranty that it is |
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14 free of the rightful claim of any third person regarding infringement |
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15 or the like. Any license provided herein, whether implied or |
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16 otherwise, applies only to this software file. Patent licenses, if |
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17 any, provided herein do not apply to combinations of this program with |
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18 other software, or any other product whatsoever. |
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19 |
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20 You should have received a copy of the GNU Lesser General Public |
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21 License along with this program; if not, write the Free Software |
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22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston MA 02110-1301, |
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23 USA. |
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24 |
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25 Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane, |
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26 Mountain View, CA 94043, or: |
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27 |
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28 http://www.sgi.com |
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29 |
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30 For further information regarding this notice, see: |
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31 |
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32 http://oss.sgi.com/projects/GenInfo/NoticeExplan |
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33 |
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34 */ |
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35 |
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36 |
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37 |
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38 /* |
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39 Largest register value that can be coded into |
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40 the opcode since there are only 6 bits in the |
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41 register field. |
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42 */ |
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43 #define MAX_6_BIT_VALUE 0x3f |
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44 |
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45 /* |
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46 This struct holds debug_frame instructions |
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47 */ |
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48 typedef struct Dwarf_P_Frame_Pgm_s *Dwarf_P_Frame_Pgm; |
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49 |
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50 struct Dwarf_P_Frame_Pgm_s { |
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51 Dwarf_Ubyte dfp_opcode; /* opcode - includes reg # */ |
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52 char *dfp_args; /* operands */ |
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53 int dfp_nbytes; /* number of bytes in args */ |
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54 #if 0 |
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55 Dwarf_Unsigned dfp_sym_index; /* 0 unless reloc needed */ |
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56 #endif |
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57 Dwarf_P_Frame_Pgm dfp_next; |
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58 }; |
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59 |
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60 |
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61 /* |
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62 This struct has cie related information. Used to gather data |
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63 from user program, and later to transform to disk form |
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64 */ |
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65 struct Dwarf_P_Cie_s { |
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66 Dwarf_Ubyte cie_version; |
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67 char *cie_aug; /* augmentation */ |
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68 Dwarf_Ubyte cie_code_align; /* alignment of code */ |
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69 Dwarf_Sbyte cie_data_align; |
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70 Dwarf_Ubyte cie_ret_reg; /* return register # */ |
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71 char *cie_inst; /* initial instruction */ |
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72 long cie_inst_bytes; |
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73 /* no of init_inst */ |
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74 Dwarf_P_Cie cie_next; |
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75 }; |
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76 |
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77 |
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78 /* producer fields */ |
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79 struct Dwarf_P_Fde_s { |
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80 Dwarf_Unsigned fde_unused1; |
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81 |
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82 /* function/subr die for this fde */ |
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83 Dwarf_P_Die fde_die; |
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84 |
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85 /* index to asso. cie */ |
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86 Dwarf_Word fde_cie; |
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87 |
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88 /* Address of first location of the code this frame applies to If |
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89 fde_end_symbol non-zero, this represents the offset from the |
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90 symbol indicated by fde_r_symidx */ |
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91 Dwarf_Addr fde_initloc; |
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92 |
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93 /* Relocation symbol for address of the code this frame applies to. |
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94 */ |
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95 Dwarf_Unsigned fde_r_symidx; |
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96 |
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97 /* Bytes of instr for this fde, if known */ |
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98 Dwarf_Unsigned fde_addr_range; |
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99 |
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100 /* linked list of instructions we will put in fde. */ |
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101 Dwarf_P_Frame_Pgm fde_inst; |
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102 |
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103 /* number of instructions in fde */ |
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104 long fde_n_inst; |
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105 |
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106 /* number of bytes of inst in fde */ |
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107 long fde_n_bytes; |
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108 |
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109 /* offset into exception table for this function. */ |
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110 Dwarf_Signed fde_offset_into_exception_tables; |
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111 |
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112 /* The symbol for the exception table elf section. */ |
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113 Dwarf_Unsigned fde_exception_table_symbol; |
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114 |
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115 /* pointer to last inst */ |
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116 Dwarf_P_Frame_Pgm fde_last_inst; |
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117 |
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118 Dwarf_P_Fde fde_next; |
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119 |
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120 /* The symbol and offset of the end symbol. When fde_end_symbol is |
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121 non-zero we must represent the */ |
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122 Dwarf_Addr fde_end_symbol_offset; |
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123 Dwarf_Unsigned fde_end_symbol; |
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124 |
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125 int fde_uwordb_size; |
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126 Dwarf_P_Debug fde_dbg; |
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127 }; |