1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __ASMm68k_ELF_H 3*4882a593Smuzhiyun #define __ASMm68k_ELF_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * ELF register definitions.. 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <asm/ptrace.h> 10*4882a593Smuzhiyun #include <asm/user.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun /* 13*4882a593Smuzhiyun * 68k ELF relocation types 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun #define R_68K_NONE 0 16*4882a593Smuzhiyun #define R_68K_32 1 17*4882a593Smuzhiyun #define R_68K_16 2 18*4882a593Smuzhiyun #define R_68K_8 3 19*4882a593Smuzhiyun #define R_68K_PC32 4 20*4882a593Smuzhiyun #define R_68K_PC16 5 21*4882a593Smuzhiyun #define R_68K_PC8 6 22*4882a593Smuzhiyun #define R_68K_GOT32 7 23*4882a593Smuzhiyun #define R_68K_GOT16 8 24*4882a593Smuzhiyun #define R_68K_GOT8 9 25*4882a593Smuzhiyun #define R_68K_GOT32O 10 26*4882a593Smuzhiyun #define R_68K_GOT16O 11 27*4882a593Smuzhiyun #define R_68K_GOT8O 12 28*4882a593Smuzhiyun #define R_68K_PLT32 13 29*4882a593Smuzhiyun #define R_68K_PLT16 14 30*4882a593Smuzhiyun #define R_68K_PLT8 15 31*4882a593Smuzhiyun #define R_68K_PLT32O 16 32*4882a593Smuzhiyun #define R_68K_PLT16O 17 33*4882a593Smuzhiyun #define R_68K_PLT8O 18 34*4882a593Smuzhiyun #define R_68K_COPY 19 35*4882a593Smuzhiyun #define R_68K_GLOB_DAT 20 36*4882a593Smuzhiyun #define R_68K_JMP_SLOT 21 37*4882a593Smuzhiyun #define R_68K_RELATIVE 22 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun typedef unsigned long elf_greg_t; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) 42*4882a593Smuzhiyun typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun typedef struct user_m68kfp_struct elf_fpregset_t; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* 47*4882a593Smuzhiyun * This is used to ensure we don't load something for the wrong architecture. 48*4882a593Smuzhiyun */ 49*4882a593Smuzhiyun #define elf_check_arch(x) ((x)->e_machine == EM_68K) 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun /* 52*4882a593Smuzhiyun * These are used to set parameters in the core dumps. 53*4882a593Smuzhiyun */ 54*4882a593Smuzhiyun #define ELF_CLASS ELFCLASS32 55*4882a593Smuzhiyun #define ELF_DATA ELFDATA2MSB 56*4882a593Smuzhiyun #define ELF_ARCH EM_68K 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun /* For SVR4/m68k the function pointer to be registered with `atexit' is 59*4882a593Smuzhiyun passed in %a1. Although my copy of the ABI has no such statement, it 60*4882a593Smuzhiyun is actually used on ASV. */ 61*4882a593Smuzhiyun #define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun #if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE) 64*4882a593Smuzhiyun #define ELF_EXEC_PAGESIZE 8192 65*4882a593Smuzhiyun #else 66*4882a593Smuzhiyun #define ELF_EXEC_PAGESIZE 4096 67*4882a593Smuzhiyun #endif 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun /* This is the location that an ET_DYN program is loaded if exec'ed. Typical 70*4882a593Smuzhiyun use of this is to invoke "./ld.so someprog" to test out a new version of 71*4882a593Smuzhiyun the loader. We need to make sure that it is out of the way of the program 72*4882a593Smuzhiyun that it will "exec", and that there is sufficient room for the brk. */ 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun #ifndef CONFIG_SUN3 75*4882a593Smuzhiyun #define ELF_ET_DYN_BASE 0xD0000000UL 76*4882a593Smuzhiyun #else 77*4882a593Smuzhiyun #define ELF_ET_DYN_BASE 0x0D800000UL 78*4882a593Smuzhiyun #endif 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun #define ELF_CORE_COPY_REGS(pr_reg, regs) \ 81*4882a593Smuzhiyun /* Bleech. */ \ 82*4882a593Smuzhiyun pr_reg[0] = regs->d1; \ 83*4882a593Smuzhiyun pr_reg[1] = regs->d2; \ 84*4882a593Smuzhiyun pr_reg[2] = regs->d3; \ 85*4882a593Smuzhiyun pr_reg[3] = regs->d4; \ 86*4882a593Smuzhiyun pr_reg[4] = regs->d5; \ 87*4882a593Smuzhiyun pr_reg[7] = regs->a0; \ 88*4882a593Smuzhiyun pr_reg[8] = regs->a1; \ 89*4882a593Smuzhiyun pr_reg[9] = regs->a2; \ 90*4882a593Smuzhiyun pr_reg[14] = regs->d0; \ 91*4882a593Smuzhiyun pr_reg[15] = rdusp(); \ 92*4882a593Smuzhiyun pr_reg[16] = regs->orig_d0; \ 93*4882a593Smuzhiyun pr_reg[17] = regs->sr; \ 94*4882a593Smuzhiyun pr_reg[18] = regs->pc; \ 95*4882a593Smuzhiyun pr_reg[19] = (regs->format << 12) | regs->vector; \ 96*4882a593Smuzhiyun { \ 97*4882a593Smuzhiyun struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ 98*4882a593Smuzhiyun pr_reg[5] = sw->d6; \ 99*4882a593Smuzhiyun pr_reg[6] = sw->d7; \ 100*4882a593Smuzhiyun pr_reg[10] = sw->a3; \ 101*4882a593Smuzhiyun pr_reg[11] = sw->a4; \ 102*4882a593Smuzhiyun pr_reg[12] = sw->a5; \ 103*4882a593Smuzhiyun pr_reg[13] = sw->a6; \ 104*4882a593Smuzhiyun } 105*4882a593Smuzhiyun 106*4882a593Smuzhiyun /* This yields a mask that user programs can use to figure out what 107*4882a593Smuzhiyun instruction set this cpu supports. */ 108*4882a593Smuzhiyun 109*4882a593Smuzhiyun #define ELF_HWCAP (0) 110*4882a593Smuzhiyun 111*4882a593Smuzhiyun /* This yields a string that ld.so will use to load implementation 112*4882a593Smuzhiyun specific libraries for optimization. This is more specific in 113*4882a593Smuzhiyun intent than poking at uname or /proc/cpuinfo. */ 114*4882a593Smuzhiyun 115*4882a593Smuzhiyun #define ELF_PLATFORM (NULL) 116*4882a593Smuzhiyun 117*4882a593Smuzhiyun #endif 118