arch/unicore32/include/asm/elf.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * linux/arch/unicore32/include/asm/elf.h
   4  *
   5  * Code specific to PKUnity SoC and UniCore ISA
   6  *
   7  * Copyright (C) 2001-2010 GUAN Xue-tao
   8  */
   9
  10 #ifndef __UNICORE_ELF_H__
  11 #define __UNICORE_ELF_H__
  12
  13 #include <asm/hwcap.h>
  14
  15 /*
  16  * ELF register definitions..
  17  */
  18 #include <asm/ptrace.h>
  19 #include <linux/elf-em.h>
  20
  21 typedef unsigned long elf_greg_t;
  22 typedef unsigned long elf_freg_t[3];
  23
  24 #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
  25 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  26
  27 typedef struct fp_state elf_fpregset_t;
  28
  29 #define R_UNICORE_NONE          0
  30 #define R_UNICORE_PC24          1
  31 #define R_UNICORE_ABS32         2
  32 #define R_UNICORE_CALL          28
  33 #define R_UNICORE_JUMP24        29
  34
  35 /*
  36  * These are used to set parameters in the core dumps.
  37  */
  38 #define ELF_CLASS       ELFCLASS32
  39 #define ELF_DATA        ELFDATA2LSB
  40 #define ELF_ARCH        EM_UNICORE
  41
  42 /*
  43  * This yields a string that ld.so will use to load implementation
  44  * specific libraries for optimization.  This is more specific in
  45  * intent than poking at uname or /proc/cpuinfo.
  46  *
  47  */
  48 #define ELF_PLATFORM_SIZE 8
  49 #define ELF_PLATFORM    (elf_platform)
  50
  51 extern char elf_platform[];
  52
  53 struct elf32_hdr;
  54
  55 /*
  56  * This is used to ensure we don't load something for the wrong architecture.
  57  */
  58 extern int elf_check_arch(const struct elf32_hdr *);
  59 #define elf_check_arch elf_check_arch
  60
  61 struct task_struct;
  62 int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
  63 #define ELF_CORE_COPY_TASK_REGS dump_task_regs
  64
  65 #define ELF_EXEC_PAGESIZE       4096
  66
  67 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  68    use of this is to invoke "./ld.so someprog" to test out a new version of
  69    the loader.  We need to make sure that it is out of the way of the program
  70    that it will "exec", and that there is sufficient room for the brk.  */
  71
  72 #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
  73
  74 /* When the program starts, a1 contains a pointer to a function to be
  75    registered with atexit, as per the SVR4 ABI.  A value of 0 means we
  76    have no such handler.  */
  77 #define ELF_PLAT_INIT(_r, load_addr)    {(_r)->UCreg_00 = 0; }
  78
  79 extern void elf_set_personality(const struct elf32_hdr *);
  80 #define SET_PERSONALITY(ex)     elf_set_personality(&(ex))
  81
  82 struct mm_struct;
  83 extern unsigned long arch_randomize_brk(struct mm_struct *mm);
  84 #define arch_randomize_brk arch_randomize_brk
  85
  86 extern int vectors_user_mapping(void);
  87 #define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping()
  88 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES
  89
  90 #endif