1#ifndef _ASM_M32R__ELF_H 2#define _ASM_M32R__ELF_H 3 4/* 5 * ELF-specific definitions. 6 * 7 * Copyright (C) 1999-2004, Renesas Technology Corp. 8 * Hirokazu Takata <takata at linux-m32r.org> 9 */ 10 11#include <asm/ptrace.h> 12#include <asm/user.h> 13#include <asm/page.h> 14 15/* M32R relocation types */ 16#define R_M32R_NONE 0 17#define R_M32R_16 1 18#define R_M32R_32 2 19#define R_M32R_24 3 20#define R_M32R_10_PCREL 4 21#define R_M32R_18_PCREL 5 22#define R_M32R_26_PCREL 6 23#define R_M32R_HI16_ULO 7 24#define R_M32R_HI16_SLO 8 25#define R_M32R_LO16 9 26#define R_M32R_SDA16 10 27#define R_M32R_GNU_VTINHERIT 11 28#define R_M32R_GNU_VTENTRY 12 29 30#define R_M32R_16_RELA 33 31#define R_M32R_32_RELA 34 32#define R_M32R_24_RELA 35 33#define R_M32R_10_PCREL_RELA 36 34#define R_M32R_18_PCREL_RELA 37 35#define R_M32R_26_PCREL_RELA 38 36#define R_M32R_HI16_ULO_RELA 39 37#define R_M32R_HI16_SLO_RELA 40 38#define R_M32R_LO16_RELA 41 39#define R_M32R_SDA16_RELA 42 40#define R_M32R_RELA_GNU_VTINHERIT 43 41#define R_M32R_RELA_GNU_VTENTRY 44 42 43#define R_M32R_GOT24 48 44#define R_M32R_26_PLTREL 49 45#define R_M32R_COPY 50 46#define R_M32R_GLOB_DAT 51 47#define R_M32R_JMP_SLOT 52 48#define R_M32R_RELATIVE 53 49#define R_M32R_GOTOFF 54 50#define R_M32R_GOTPC24 55 51#define R_M32R_GOT16_HI_ULO 56 52#define R_M32R_GOT16_HI_SLO 57 53#define R_M32R_GOT16_LO 58 54#define R_M32R_GOTPC_HI_ULO 59 55#define R_M32R_GOTPC_HI_SLO 60 56#define R_M32R_GOTPC_LO 61 57#define R_M32R_GOTOFF_HI_ULO 62 58#define R_M32R_GOTOFF_HI_SLO 63 59#define R_M32R_GOTOFF_LO 64 60 61#define R_M32R_NUM 256 62 63/* 64 * ELF register definitions.. 65 */ 66#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) 67 68typedef unsigned long elf_greg_t; 69typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 70 71/* We have no FP mumumu. */ 72typedef double elf_fpreg_t; 73typedef elf_fpreg_t elf_fpregset_t; 74 75/* 76 * This is used to ensure we don't load something for the wrong architecture. 77 */ 78#define elf_check_arch(x) \ 79 (((x)->e_machine == EM_M32R) || ((x)->e_machine == EM_CYGNUS_M32R)) 80 81/* 82 * These are used to set parameters in the core dumps. 83 */ 84#define ELF_CLASS ELFCLASS32 85#if defined(__LITTLE_ENDIAN__) 86#define ELF_DATA ELFDATA2LSB 87#elif defined(__BIG_ENDIAN__) 88#define ELF_DATA ELFDATA2MSB 89#else 90#error no endian defined 91#endif 92#define ELF_ARCH EM_M32R 93 94/* r0 is set by ld.so to a pointer to a function which might be 95 * registered using 'atexit'. This provides a mean for the dynamic 96 * linker to call DT_FINI functions for shared libraries that have 97 * been loaded before the code runs. 98 * 99 * So that we can use the same startup file with static executables, 100 * we start programs with a value of 0 to indicate that there is no 101 * such function. 102 */ 103#define ELF_PLAT_INIT(_r, load_addr) (_r)->r0 = 0 104 105#define ELF_EXEC_PAGESIZE PAGE_SIZE 106 107/* 108 * This is the location that an ET_DYN program is loaded if exec'ed. 109 * Typical use of this is to invoke "./ld.so someprog" to test out a 110 * new version of the loader. We need to make sure that it is out of 111 * the way of the program that it will "exec", and that there is 112 * sufficient room for the brk. 113 */ 114#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) 115 116/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is 117 now struct_user_regs, they are different) */ 118 119#define ELF_CORE_COPY_REGS(pr_reg, regs) \ 120 memcpy((char *)pr_reg, (char *)regs, sizeof (struct pt_regs)); 121 122/* This yields a mask that user programs can use to figure out what 123 instruction set this CPU supports. */ 124#define ELF_HWCAP (0) 125 126/* This yields a string that ld.so will use to load implementation 127 specific libraries for optimization. This is more specific in 128 intent than poking at uname or /proc/cpuinfo. */ 129#define ELF_PLATFORM (NULL) 130 131#endif /* _ASM_M32R__ELF_H */ 132