| [444] | 1 | /* RX ELF support for BFD. |
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| 2 | Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of BFD, the Binary File Descriptor library. |
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| 5 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 20 | #ifndef _ELF_RX_H |
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| 21 | #define _ELF_RX_H |
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| 22 | |
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| 23 | #include "elf/reloc-macros.h" |
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| 24 | |
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| 25 | /* Note that there are a few internal relocation types used by the |
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| 26 | linker to do link-time relaxation. If you update this file, please |
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| 27 | check elf32-rx.c to see if any of the internal relocations need to |
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| 28 | be, er, relocated. */ |
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| 29 | |
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| 30 | /* Preliminary relocations. */ |
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| 31 | START_RELOC_NUMBERS (elf_rx_reloc_type) |
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| 32 | |
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| 33 | RELOC_NUMBER (R_RX_NONE, 0x00) |
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| 34 | /* These are for data, and are bi-endian. */ |
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| 35 | RELOC_NUMBER (R_RX_DIR32, 0x01) /* Was: R_RX_32. */ |
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| 36 | RELOC_NUMBER (R_RX_DIR24S, 0x02) /* Was: R_RX_24. */ |
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| 37 | RELOC_NUMBER (R_RX_DIR16, 0x03) |
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| 38 | RELOC_NUMBER (R_RX_DIR16U, 0x04) /* Was: R_RX_16_UNS. */ |
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| 39 | RELOC_NUMBER (R_RX_DIR16S, 0x05) /* Was: R_RX_16. */ |
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| 40 | RELOC_NUMBER (R_RX_DIR8, 0x06) |
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| 41 | RELOC_NUMBER (R_RX_DIR8U, 0x07) /* Was: R_RX_8_UNS. */ |
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| 42 | RELOC_NUMBER (R_RX_DIR8S, 0x08) /* Was: R_RX_8. */ |
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| 43 | |
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| 44 | /* Signed pc-relative values. */ |
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| 45 | RELOC_NUMBER (R_RX_DIR24S_PCREL, 0x09) /* Was: R_RX_24_PCREL. */ |
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| 46 | RELOC_NUMBER (R_RX_DIR16S_PCREL, 0x0a) /* Was: R_RX_16_PCREL. */ |
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| 47 | RELOC_NUMBER (R_RX_DIR8S_PCREL, 0x0b) /* Was: R_RX_8_PCREL. */ |
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| 48 | |
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| 49 | /* These are for fields in the instructions. */ |
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| 50 | RELOC_NUMBER (R_RX_DIR16UL, 0x0c) |
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| 51 | RELOC_NUMBER (R_RX_DIR16UW, 0x0d) |
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| 52 | RELOC_NUMBER (R_RX_DIR8UL, 0x0e) |
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| 53 | RELOC_NUMBER (R_RX_DIR8UW, 0x0f) |
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| 54 | RELOC_NUMBER (R_RX_DIR32_REV, 0x10) |
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| 55 | RELOC_NUMBER (R_RX_DIR16_REV, 0x11) |
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| 56 | RELOC_NUMBER (R_RX_DIR3U_PCREL, 0x12) |
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| 57 | |
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| 58 | /* These are extensions added by Red Hat. */ |
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| 59 | RELOC_NUMBER (R_RX_RH_3_PCREL, 0x20) /* Like R_RX_DIR8S_PCREL but only 3-bits. */ |
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| 60 | RELOC_NUMBER (R_RX_RH_16_OP, 0x21) /* Like R_RX_DIR16 but for opcodes - always big endian. */ |
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| 61 | RELOC_NUMBER (R_RX_RH_24_OP, 0x22) /* Like R_RX_DIR24S but for opcodes - always big endian. */ |
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| 62 | RELOC_NUMBER (R_RX_RH_32_OP, 0x23) /* Like R_RX_DIR32 but for opcodes - always big endian. */ |
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| 63 | RELOC_NUMBER (R_RX_RH_24_UNS, 0x24) /* Like R_RX_DIR24S but for unsigned values. */ |
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| 64 | RELOC_NUMBER (R_RX_RH_8_NEG, 0x25) /* Like R_RX_DIR8 but -x is stored. */ |
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| 65 | RELOC_NUMBER (R_RX_RH_16_NEG, 0x26) /* Like R_RX_DIR16 but -x is stored. */ |
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| 66 | RELOC_NUMBER (R_RX_RH_24_NEG, 0x27) /* Like R_RX_DIR24S but -x is stored. */ |
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| 67 | RELOC_NUMBER (R_RX_RH_32_NEG, 0x28) /* Like R_RX_DIR32 but -x is stored. */ |
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| 68 | RELOC_NUMBER (R_RX_RH_DIFF, 0x29) /* Subtract from a previous relocation. */ |
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| 69 | RELOC_NUMBER (R_RX_RH_GPRELB, 0x2a) /* Byte value, relative to __gp. */ |
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| 70 | RELOC_NUMBER (R_RX_RH_GPRELW, 0x2b) /* Word value, relative to __gp. */ |
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| 71 | RELOC_NUMBER (R_RX_RH_GPRELL, 0x2c) /* Long value, relative to __gp. */ |
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| 72 | RELOC_NUMBER (R_RX_RH_RELAX, 0x2d) /* Marks opcodes suitable for linker relaxation. */ |
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| 73 | |
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| 74 | /* These are for complex relocs. */ |
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| 75 | RELOC_NUMBER (R_RX_ABS32, 0x41) |
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| 76 | RELOC_NUMBER (R_RX_ABS24S, 0x42) |
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| 77 | RELOC_NUMBER (R_RX_ABS16, 0x43) |
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| 78 | RELOC_NUMBER (R_RX_ABS16U, 0x44) |
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| 79 | RELOC_NUMBER (R_RX_ABS16S, 0x45) |
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| 80 | RELOC_NUMBER (R_RX_ABS8, 0x46) |
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| 81 | RELOC_NUMBER (R_RX_ABS8U, 0x47) |
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| 82 | RELOC_NUMBER (R_RX_ABS8S, 0x48) |
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| 83 | RELOC_NUMBER (R_RX_ABS24S_PCREL, 0x49) |
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| 84 | RELOC_NUMBER (R_RX_ABS16S_PCREL, 0x4a) |
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| 85 | RELOC_NUMBER (R_RX_ABS8S_PCREL, 0x4b) |
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| 86 | RELOC_NUMBER (R_RX_ABS16UL, 0x4c) |
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| 87 | RELOC_NUMBER (R_RX_ABS16UW, 0x4d) |
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| 88 | RELOC_NUMBER (R_RX_ABS8UL, 0x4e) |
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| 89 | RELOC_NUMBER (R_RX_ABS8UW, 0x4f) |
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| 90 | RELOC_NUMBER (R_RX_ABS32_REV, 0x50) |
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| 91 | RELOC_NUMBER (R_RX_ABS16_REV, 0x51) |
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| 92 | |
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| 93 | RELOC_NUMBER (R_RX_SYM, 0x80) |
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| 94 | RELOC_NUMBER (R_RX_OPneg, 0x81) |
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| 95 | RELOC_NUMBER (R_RX_OPadd, 0x82) |
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| 96 | RELOC_NUMBER (R_RX_OPsub, 0x83) |
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| 97 | RELOC_NUMBER (R_RX_OPmul, 0x84) |
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| 98 | RELOC_NUMBER (R_RX_OPdiv, 0x85) |
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| 99 | RELOC_NUMBER (R_RX_OPshla, 0x86) |
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| 100 | RELOC_NUMBER (R_RX_OPshra, 0x87) |
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| 101 | RELOC_NUMBER (R_RX_OPsctsize, 0x88) |
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| 102 | RELOC_NUMBER (R_RX_OPscttop, 0x8d) |
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| 103 | RELOC_NUMBER (R_RX_OPand, 0x90) |
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| 104 | RELOC_NUMBER (R_RX_OPor, 0x91) |
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| 105 | RELOC_NUMBER (R_RX_OPxor, 0x92) |
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| 106 | RELOC_NUMBER (R_RX_OPnot, 0x93) |
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| 107 | RELOC_NUMBER (R_RX_OPmod, 0x94) |
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| 108 | RELOC_NUMBER (R_RX_OPromtop, 0x95) |
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| 109 | RELOC_NUMBER (R_RX_OPramtop, 0x96) |
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| 110 | |
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| 111 | END_RELOC_NUMBERS (R_RX_max) |
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| 112 | |
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| 113 | #define EF_RX_CPU_RX 0x00000079 /* FIXME: this collides with the E_FLAG_RX_... values below. */ |
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| 114 | #define EF_RX_CPU_MASK 0x0000007F /* specific cpu bits. */ |
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| 115 | #define EF_RX_ALL_FLAGS (EF_RX_CPU_MASK) |
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| 116 | |
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| 117 | /* Values for the e_flags field in the ELF header. */ |
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| 118 | #define E_FLAG_RX_64BIT_DOUBLES (1 << 0) |
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| 119 | #define E_FLAG_RX_DSP (1 << 1) /* Defined in the RX CPU Object file specification, but not explained. */ |
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| 120 | #define E_FLAG_RX_PID (1 << 2) /* Unofficial - DJ */ |
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| 121 | #define E_FLAG_RX_ABI (1 << 3) /* Binary passes stacked arguments using natural alignment. Unofficial - NC. */ |
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| 122 | |
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| 123 | #define E_FLAG_RX_SINSNS_SET (1 << 6) /* Set if bit-5 is significant. */ |
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| 124 | #define E_FLAG_RX_SINSNS_YES (1 << 7) /* Set if string instructions are used in the binary. */ |
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| 125 | #define E_FLAG_RX_SINSNS_NO 0 /* Bit-5 if this binary must not be linked with a string instruction using binary. */ |
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| 126 | #define E_FLAG_RX_SINSNS_MASK (3 << 6) /* Mask of bits used to determine string instruction use. */ |
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| 127 | |
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| 128 | /* These define the addend field of R_RX_RH_RELAX relocations. */ |
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| 129 | #define RX_RELAXA_IMM6 0x00000010 /* Imm8/16/24/32 at bit offset 6. */ |
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| 130 | #define RX_RELAXA_IMM12 0x00000020 /* Imm8/16/24/32 at bit offset 12. */ |
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| 131 | #define RX_RELAXA_DSP4 0x00000040 /* Dsp0/8/16 at bit offset 4. */ |
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| 132 | #define RX_RELAXA_DSP6 0x00000080 /* Dsp0/8/16 at bit offset 6. */ |
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| 133 | #define RX_RELAXA_DSP14 0x00000100 /* Dsp0/8/16 at bit offset 14. */ |
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| 134 | #define RX_RELAXA_BRA 0x00000200 /* Any type of branch (must be decoded). */ |
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| 135 | #define RX_RELAXA_RNUM 0x0000000f /* Number of associated relocations. */ |
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| 136 | /* These mark the place where alignment is requested, and the place where the filler bytes end. */ |
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| 137 | #define RX_RELAXA_ALIGN 0x10000000 /* Start alignment; the remaining bits are the alignment value. */ |
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| 138 | #define RX_RELAXA_ELIGN 0x20000000 /* End alignment; the remaining bits are the alignment value. */ |
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| 139 | #define RX_RELAXA_ANUM 0x00ffffff /* Alignment amount, in bytes (i.e. .balign). */ |
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| 140 | |
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| 141 | #endif /* _ELF_RX_H */ |
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