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Rev | Author | Line No. | Line |
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5191 | serge | 1 | /* ARM COFF support for BFD. |
6324 | serge | 2 | Copyright (C) 1998-2015 Free Software Foundation, Inc. |
5191 | serge | 3 | |
4 | This file is part of BFD, the Binary File Descriptor library. |
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5 | |||
6 | This program 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 3 of the License, or |
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9 | (at your option) any later version. |
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10 | |||
11 | This program 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 | |||
16 | You should have received a copy of the GNU General Public License |
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17 | along with this program; if not, write to the Free Software Foundation, |
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18 | Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
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19 | |||
20 | #define COFFARM 1 |
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21 | |||
22 | #define L_LNNO_SIZE 2 |
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23 | #define INCLUDE_COMDAT_FIELDS_IN_AUXENT |
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24 | #include "coff/external.h" |
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25 | |||
26 | /* Bits for f_flags: |
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27 | F_RELFLG relocation info stripped from file |
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28 | F_EXEC file is executable (no unresolved external references) |
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29 | F_LNNO line numbers stripped from file |
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30 | F_LSYMS local symbols stripped from file |
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31 | F_INTERWORK file supports switching between ARM and Thumb instruction sets |
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32 | F_INTERWORK_SET the F_INTERWORK bit is valid |
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33 | F_APCS_FLOAT code passes float arguments in float registers |
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34 | F_PIC code is reentrant/position-independent |
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35 | F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax) |
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36 | F_APCS_26 file uses 26 bit ARM Procedure Calling Standard |
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37 | F_APCS_SET the F_APCS_26, F_APCS_FLOAT and F_PIC bits have been initialised |
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38 | F_SOFT_FLOAT code does not use floating point instructions. */ |
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39 | |||
40 | #define F_RELFLG (0x0001) |
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41 | #define F_EXEC (0x0002) |
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42 | #define F_LNNO (0x0004) |
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43 | #define F_LSYMS (0x0008) |
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44 | #define F_INTERWORK (0x0010) |
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45 | #define F_INTERWORK_SET (0x0020) |
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46 | #define F_APCS_FLOAT (0x0040) |
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47 | #undef F_AR16WR |
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48 | #define F_PIC (0x0080) |
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49 | #define F_AR32WR (0x0100) |
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50 | #define F_APCS_26 (0x0400) |
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51 | #define F_APCS_SET (0x0800) |
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52 | #define F_SOFT_FLOAT (0x2000) |
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53 | #define F_VFP_FLOAT (0x4000) |
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54 | |||
55 | /* Bits stored in flags field of the internal_f structure */ |
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56 | |||
57 | #define F_INTERWORK (0x0010) |
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58 | #define F_APCS_FLOAT (0x0040) |
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59 | #define F_PIC (0x0080) |
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60 | #define F_APCS26 (0x1000) |
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61 | #define F_ARM_ARCHITECTURE_MASK (0x4000+0x0800+0x0400) |
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62 | #define F_ARM_2 (0x0400) |
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63 | #define F_ARM_2a (0x0800) |
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64 | #define F_ARM_3 (0x0c00) |
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65 | #define F_ARM_3M (0x4000) |
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66 | #define F_ARM_4 (0x4400) |
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67 | #define F_ARM_4T (0x4800) |
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68 | #define F_ARM_5 (0x4c00) |
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69 | |||
70 | /* |
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71 | ARMMAGIC ought to encoded the procesor type, |
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72 | but it is too late to change it now, instead |
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73 | the flags field of the internal_f structure |
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74 | is used as shown above. |
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75 | |||
76 | XXX - NC 5/6/97. */ |
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77 | |||
78 | #define ARMMAGIC 0xa00 /* I just made this up */ |
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79 | |||
80 | #define ARMBADMAG(x) (((x).f_magic != ARMMAGIC)) |
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81 | |||
82 | #define ARMPEMAGIC 0x1c0 |
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83 | #define THUMBPEMAGIC 0x1c2 |
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84 | #define ARMV7PEMAGIC 0x1c4 |
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85 | |||
86 | #undef ARMBADMAG |
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87 | #define ARMBADMAG(x) (((x).f_magic != ARMMAGIC) && ((x).f_magic != ARMPEMAGIC) && ((x).f_magic != THUMBPEMAGIC) && ((x).f_magic != ARMV7PEMAGIC)) |
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88 | |||
89 | #define OMAGIC 0404 /* object files, eg as output */ |
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90 | #define ZMAGIC 0413 /* demand load format, eg normal ld output */ |
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91 | #define STMAGIC 0401 /* target shlib */ |
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92 | #define SHMAGIC 0443 /* host shlib */ |
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93 | |||
94 | /* define some NT default values */ |
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95 | /* #define NT_IMAGE_BASE 0x400000 moved to internal.h */ |
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96 | #define NT_SECTION_ALIGNMENT 0x1000 |
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97 | #define NT_FILE_ALIGNMENT 0x200 |
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98 | #define NT_DEF_RESERVE 0x100000 |
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99 | #define NT_DEF_COMMIT 0x1000 |
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100 | |||
101 | /* We use the .rdata section to hold read only data. */ |
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102 | #define _LIT ".rdata" |
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103 | |||
104 | /********************** RELOCATION DIRECTIVES **********************/ |
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105 | #ifdef ARM_WINCE |
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106 | struct external_reloc |
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107 | { |
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108 | char r_vaddr[4]; |
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109 | char r_symndx[4]; |
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110 | char r_type[2]; |
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111 | }; |
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112 | |||
113 | #define RELOC struct external_reloc |
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114 | #define RELSZ 10 |
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115 | |||
116 | #else |
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117 | struct external_reloc |
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118 | { |
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119 | char r_vaddr[4]; |
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120 | char r_symndx[4]; |
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121 | char r_type[2]; |
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122 | char r_offset[4]; |
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123 | }; |
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124 | |||
125 | #define RELOC struct external_reloc |
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126 | #define RELSZ 14 |
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127 | #endif |
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128 | |||
129 | #define ARM_NOTE_SECTION ".note" |