1 #ifndef __ASMm68k_ELF_H 2 #define __ASMm68k_ELF_H 3 4 /* 5 * ELF register definitions.. 6 */ 7 8 #include <asm/ptrace.h> 9 #include <asm/user.h> 10 11 /* 12 * 68k ELF relocation types 13 */ 14 #define R_68K_NONE 0 15 #define R_68K_32 1 16 #define R_68K_16 2 17 #define R_68K_8 3 18 #define R_68K_PC32 4 19 #define R_68K_PC16 5 20 #define R_68K_PC8 6 21 #define R_68K_GOT32 7 22 #define R_68K_GOT16 8 23 #define R_68K_GOT8 9 24 #define R_68K_GOT32O 10 25 #define R_68K_GOT16O 11 26 #define R_68K_GOT8O 12 27 #define R_68K_PLT32 13 28 #define R_68K_PLT16 14 29 #define R_68K_PLT8 15 30 #define R_68K_PLT32O 16 31 #define R_68K_PLT16O 17 32 #define R_68K_PLT8O 18 33 #define R_68K_COPY 19 34 #define R_68K_GLOB_DAT 20 35 #define R_68K_JMP_SLOT 21 36 #define R_68K_RELATIVE 22 37 38 typedef unsigned long elf_greg_t; 39 40 #define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) 41 typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 42 43 typedef struct user_m68kfp_struct elf_fpregset_t; 44 45 /* 46 * This is used to ensure we don't load something for the wrong architecture. 47 */ 48 #define elf_check_arch(x) ((x)->e_machine == EM_68K) 49 50 /* 51 * These are used to set parameters in the core dumps. 52 */ 53 #define ELF_CLASS ELFCLASS32 54 #define ELF_DATA ELFDATA2MSB 55 #define ELF_ARCH EM_68K 56 57 /* For SVR4/m68k the function pointer to be registered with `atexit' is 58 passed in %a1. Although my copy of the ABI has no such statement, it 59 is actually used on ASV. */ 60 #define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0 61 62 #if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE) 63 #define ELF_EXEC_PAGESIZE 8192 64 #else 65 #define ELF_EXEC_PAGESIZE 4096 66 #endif 67 68 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical 69 use of this is to invoke "./ld.so someprog" to test out a new version of 70 the loader. We need to make sure that it is out of the way of the program 71 that it will "exec", and that there is sufficient room for the brk. */ 72 73 #ifndef CONFIG_SUN3 74 #define ELF_ET_DYN_BASE 0xD0000000UL 75 #else 76 #define ELF_ET_DYN_BASE 0x0D800000UL 77 #endif 78 79 #define ELF_CORE_COPY_REGS(pr_reg, regs) \ 80 /* Bleech. */ \ 81 pr_reg[0] = regs->d1; \ 82 pr_reg[1] = regs->d2; \ 83 pr_reg[2] = regs->d3; \ 84 pr_reg[3] = regs->d4; \ 85 pr_reg[4] = regs->d5; \ 86 pr_reg[7] = regs->a0; \ 87 pr_reg[8] = regs->a1; \ 88 pr_reg[9] = regs->a2; \ 89 pr_reg[14] = regs->d0; \ 90 pr_reg[15] = rdusp(); \ 91 pr_reg[16] = regs->orig_d0; \ 92 pr_reg[17] = regs->sr; \ 93 pr_reg[18] = regs->pc; \ 94 pr_reg[19] = (regs->format << 12) | regs->vector; \ 95 { \ 96 struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ 97 pr_reg[5] = sw->d6; \ 98 pr_reg[6] = sw->d7; \ 99 pr_reg[10] = sw->a3; \ 100 pr_reg[11] = sw->a4; \ 101 pr_reg[12] = sw->a5; \ 102 pr_reg[13] = sw->a6; \ 103 } 104 105 /* This yields a mask that user programs can use to figure out what 106 instruction set this cpu supports. */ 107 108 #define ELF_HWCAP (0) 109 110 /* This yields a string that ld.so will use to load implementation 111 specific libraries for optimization. This is more specific in 112 intent than poking at uname or /proc/cpuinfo. */ 113 114 #define ELF_PLATFORM (NULL) 115 116 #endif 117