1/* coff information for Renesas SH 2 3 Copyright 2000, 2003 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 18 19#ifdef COFF_WITH_PE 20#define L_LNNO_SIZE 2 21#else 22#define L_LNNO_SIZE 4 23#endif 24#define INCLUDE_COMDAT_FIELDS_IN_AUXENT 25#include "coff/external.h" 26 27#define SH_ARCH_MAGIC_BIG 0x0500 28#define SH_ARCH_MAGIC_LITTLE 0x0550 /* Little endian SH */ 29#define SH_ARCH_MAGIC_WINCE 0x01a2 /* Windows CE - little endian */ 30#define SH_PE_MAGIC 0x010b 31 32#define SHBADMAG(x) \ 33 (((x).f_magic != SH_ARCH_MAGIC_BIG) && \ 34 ((x).f_magic != SH_ARCH_MAGIC_WINCE) && \ 35 ((x).f_magic != SH_ARCH_MAGIC_LITTLE)) 36 37/* Define some NT default values. */ 38/* #define NT_IMAGE_BASE 0x400000 moved to internal.h */ 39#define NT_SECTION_ALIGNMENT 0x1000 40#define NT_FILE_ALIGNMENT 0x200 41#define NT_DEF_RESERVE 0x100000 42#define NT_DEF_COMMIT 0x1000 43 44/********************** RELOCATION DIRECTIVES **********************/ 45 46/* The external reloc has an offset field, because some of the reloc 47 types on the h8 don't have room in the instruction for the entire 48 offset - eg the strange jump and high page addressing modes. */ 49 50#ifndef COFF_WITH_PE 51struct external_reloc 52{ 53 char r_vaddr[4]; 54 char r_symndx[4]; 55 char r_offset[4]; 56 char r_type[2]; 57 char r_stuff[2]; 58}; 59#else 60struct external_reloc 61{ 62 char r_vaddr[4]; 63 char r_symndx[4]; 64 char r_type[2]; 65}; 66#endif 67 68#define RELOC struct external_reloc 69#ifdef COFF_WITH_PE 70#define RELSZ 10 71#else 72#define RELSZ 16 73#endif 74 75/* SH relocation types. Not all of these are actually used. */ 76 77#define R_SH_UNUSED 0 /* only used internally */ 78#define R_SH_IMM32CE 2 /* 32 bit immediate for WinCE */ 79#define R_SH_PCREL8 3 /* 8 bit pcrel */ 80#define R_SH_PCREL16 4 /* 16 bit pcrel */ 81#define R_SH_HIGH8 5 /* high 8 bits of 24 bit address */ 82#define R_SH_LOW16 7 /* low 16 bits of 24 bit immediate */ 83#define R_SH_IMM24 6 /* 24 bit immediate */ 84#define R_SH_PCDISP8BY4 9 /* PC rel 8 bits *4 +ve */ 85#define R_SH_PCDISP8BY2 10 /* PC rel 8 bits *2 +ve */ 86#define R_SH_PCDISP8 11 /* 8 bit branch */ 87#define R_SH_PCDISP 12 /* 12 bit branch */ 88#define R_SH_IMM32 14 /* 32 bit immediate */ 89#define R_SH_IMM8 16 /* 8 bit immediate */ 90#define R_SH_IMAGEBASE 16 /* Windows CE */ 91#define R_SH_IMM8BY2 17 /* 8 bit immediate *2 */ 92#define R_SH_IMM8BY4 18 /* 8 bit immediate *4 */ 93#define R_SH_IMM4 19 /* 4 bit immediate */ 94#define R_SH_IMM4BY2 20 /* 4 bit immediate *2 */ 95#define R_SH_IMM4BY4 21 /* 4 bit immediate *4 */ 96#define R_SH_PCRELIMM8BY2 22 /* PC rel 8 bits *2 unsigned */ 97#define R_SH_PCRELIMM8BY4 23 /* PC rel 8 bits *4 unsigned */ 98#define R_SH_IMM16 24 /* 16 bit immediate */ 99 100/* The switch table reloc types are used for relaxing. They are 101 generated for expressions such as 102 .word L1 - L2 103 The r_offset field holds the difference between the reloc address 104 and L2. */ 105#define R_SH_SWITCH8 33 /* 8 bit switch table entry */ 106#define R_SH_SWITCH16 25 /* 16 bit switch table entry */ 107#define R_SH_SWITCH32 26 /* 32 bit switch table entry */ 108 109/* The USES reloc type is used for relaxing. The compiler will 110 generate .uses pseudo-ops when it finds a function call which it 111 can relax. The r_offset field of the USES reloc holds the PC 112 relative offset to the instruction which loads the register used in 113 the function call. */ 114#define R_SH_USES 27 /* .uses pseudo-op */ 115 116/* The COUNT reloc type is used for relaxing. The assembler will 117 generate COUNT relocs for addresses referred to by the register 118 loads associated with USES relocs. The r_offset field of the COUNT 119 reloc holds the number of times the address is referenced in the 120 object file. */ 121#define R_SH_COUNT 28 /* Count of constant pool uses */ 122 123/* The ALIGN reloc type is used for relaxing. The r_offset field is 124 the power of two to which subsequent portions of the object file 125 must be aligned. */ 126#define R_SH_ALIGN 29 /* .align pseudo-op */ 127 128/* The CODE and DATA reloc types are used for aligning load and store 129 instructions. The assembler will generate a CODE reloc before a 130 block of instructions. It will generate a DATA reloc before data. 131 A section should be processed assuming it contains data, unless a 132 CODE reloc is seen. The only relevant pieces of information in the 133 CODE and DATA relocs are the section and the address. The symbol 134 and offset are meaningless. */ 135#define R_SH_CODE 30 /* start of code */ 136#define R_SH_DATA 31 /* start of data */ 137 138/* The LABEL reloc type is used for aligning load and store 139 instructions. The assembler will generate a LABEL reloc for each 140 label within a block of instructions. This permits the linker to 141 avoid swapping instructions which are the targets of branches. */ 142#define R_SH_LABEL 32 /* label */ 143 144/* NB: R_SH_SWITCH8 is 33 */ 145 146#define R_SH_LOOP_START 34 147#define R_SH_LOOP_END 35 148