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 68 typedef unsigned long elf_greg_t; 69 typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 70 71 /* We have no FP mumumu. */ 72 typedef double elf_fpreg_t; 73 typedef 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