1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 #ifndef __ASM_CSKY_ELF_H 4 #define __ASM_CSKY_ELF_H 5 6 #include <asm/ptrace.h> 7 #include <abi/regdef.h> 8 9 #define ELF_ARCH EM_CSKY 10 #define EM_CSKY_OLD 39 11 12 /* CSKY Relocations */ 13 #define R_CSKY_NONE 0 14 #define R_CSKY_32 1 15 #define R_CSKY_PCIMM8BY4 2 16 #define R_CSKY_PCIMM11BY2 3 17 #define R_CSKY_PCIMM4BY2 4 18 #define R_CSKY_PC32 5 19 #define R_CSKY_PCRELJSR_IMM11BY2 6 20 #define R_CSKY_GNU_VTINHERIT 7 21 #define R_CSKY_GNU_VTENTRY 8 22 #define R_CSKY_RELATIVE 9 23 #define R_CSKY_COPY 10 24 #define R_CSKY_GLOB_DAT 11 25 #define R_CSKY_JUMP_SLOT 12 26 #define R_CSKY_ADDR_HI16 24 27 #define R_CSKY_ADDR_LO16 25 28 #define R_CSKY_PCRELJSR_IMM26BY2 40 29 30 typedef unsigned long elf_greg_t; 31 32 typedef struct user_fp elf_fpregset_t; 33 34 /* 35 * In gdb/bfd elf32-csky.c, csky_elf_grok_prstatus() use fixed size of 36 * elf_prstatus. It's 148 for abiv1 and 220 for abiv2, the size is enough 37 * for coredump and no need full sizeof(struct pt_regs). 38 */ 39 #define ELF_NGREG ((sizeof(struct pt_regs) / sizeof(elf_greg_t)) - 2) 40 41 typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 42 43 /* 44 * This is used to ensure we don't load something for the wrong architecture. 45 */ 46 #define elf_check_arch(x) (((x)->e_machine == ELF_ARCH) || \ 47 ((x)->e_machine == EM_CSKY_OLD)) 48 49 /* 50 * These are used to set parameters in the core dumps. 51 */ 52 #define ELF_EXEC_PAGESIZE 4096 53 #define ELF_CLASS ELFCLASS32 54 #define ELF_PLAT_INIT(_r, load_addr) { _r->a0 = 0; } 55 56 #ifdef __cskyBE__ 57 #define ELF_DATA ELFDATA2MSB 58 #else 59 #define ELF_DATA ELFDATA2LSB 60 #endif 61 62 /* 63 * This is the location that an ET_DYN program is loaded if exec'ed. Typical 64 * use of this is to invoke "./ld.so someprog" to test out a new version of 65 * the loader. We need to make sure that it is out of the way of the program 66 * that it will "exec", and that there is sufficient room for the brk. 67 */ 68 #define ELF_ET_DYN_BASE 0x0UL 69 #include <abi/elf.h> 70 71 /* Similar, but for a thread other than current. */ 72 struct task_struct; 73 extern int dump_task_regs(struct task_struct *tsk, elf_gregset_t *elf_regs); 74 #define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs) 75 76 #define ELF_HWCAP (0) 77 78 /* 79 * This yields a string that ld.so will use to load implementation specific 80 * libraries for optimization. This is more specific in intent than poking 81 * at uname or /proc/cpuinfo. 82 */ 83 #define ELF_PLATFORM (NULL) 84 #define SET_PERSONALITY(ex) set_personality(PER_LINUX) 85 86 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 87 struct linux_binprm; 88 extern int arch_setup_additional_pages(struct linux_binprm *bprm, 89 int uses_interp); 90 #endif /* __ASM_CSKY_ELF_H */ 91