1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_SCORE_ELF_H 3 #define _ASM_SCORE_ELF_H 4 5 #include <linux/ptrace.h> 6 7 #define EM_SCORE7 135 8 9 /* Relocation types. */ 10 #define R_SCORE_NONE 0 11 #define R_SCORE_HI16 1 12 #define R_SCORE_LO16 2 13 #define R_SCORE_BCMP 3 14 #define R_SCORE_24 4 15 #define R_SCORE_PC19 5 16 #define R_SCORE16_11 6 17 #define R_SCORE16_PC8 7 18 #define R_SCORE_ABS32 8 19 #define R_SCORE_ABS16 9 20 #define R_SCORE_DUMMY2 10 21 #define R_SCORE_GP15 11 22 #define R_SCORE_GNU_VTINHERIT 12 23 #define R_SCORE_GNU_VTENTRY 13 24 #define R_SCORE_GOT15 14 25 #define R_SCORE_GOT_LO16 15 26 #define R_SCORE_CALL15 16 27 #define R_SCORE_GPREL32 17 28 #define R_SCORE_REL32 18 29 #define R_SCORE_DUMMY_HI16 19 30 #define R_SCORE_IMM30 20 31 #define R_SCORE_IMM32 21 32 33 /* ELF register definitions */ 34 typedef unsigned long elf_greg_t; 35 36 #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) 37 typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 38 39 /* Score does not have fp regs. */ 40 typedef double elf_fpreg_t; 41 typedef elf_fpreg_t elf_fpregset_t; 42 43 #define elf_check_arch(x) ((x)->e_machine == EM_SCORE7) 44 45 /* 46 * These are used to set parameters in the core dumps. 47 */ 48 #define ELF_CLASS ELFCLASS32 49 50 /* 51 * These are used to set parameters in the core dumps. 52 */ 53 #define ELF_DATA ELFDATA2LSB 54 #define ELF_ARCH EM_SCORE7 55 56 struct task_struct; 57 struct pt_regs; 58 59 #define CORE_DUMP_USE_REGSET 60 #define ELF_EXEC_PAGESIZE PAGE_SIZE 61 62 /* This yields a mask that user programs can use to figure out what 63 instruction set this cpu supports. This could be done in userspace, 64 but it's not easy, and we've already done it here. */ 65 66 #define ELF_HWCAP (0) 67 68 /* This yields a string that ld.so will use to load implementation 69 specific libraries for optimization. This is more specific in 70 intent than poking at uname or /proc/cpuinfo. 71 72 For the moment, we have only optimizations for the Intel generations, 73 but that could change... */ 74 75 #define ELF_PLATFORM (NULL) 76 77 #define ELF_PLAT_INIT(_r, load_addr) \ 78 do { \ 79 _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \ 80 _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \ 81 _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \ 82 _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \ 83 _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \ 84 _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \ 85 _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \ 86 _r->regs[30] = _r->regs[31] = 0; \ 87 } while (0) 88 89 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical 90 use of this is to invoke "./ld.so someprog" to test out a new version of 91 the loader. We need to make sure that it is out of the way of the program 92 that it will "exec", and that there is sufficient room for the brk. */ 93 94 #ifndef ELF_ET_DYN_BASE 95 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) 96 #endif 97 98 #endif /* _ASM_SCORE_ELF_H */ 99