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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_M32R__ELF_H
#define _ASM_M32R__ELF_H
/*
* ELF-specific definitions.
*
* Copyright (C) 1999-2004, Renesas Technology Corp.
* Hirokazu Takata <takata at linux-m32r.org>
*/
#include <asm/ptrace.h>
#include <asm/user.h>
#include <asm/page.h>
/* M32R relocation types */
#define R_M32R_NONE 0
#define R_M32R_16 1
#define R_M32R_32 2
#define R_M32R_24 3
#define R_M32R_10_PCREL 4
#define R_M32R_18_PCREL 5
#define R_M32R_26_PCREL 6
#define R_M32R_HI16_ULO 7
#define R_M32R_HI16_SLO 8
#define R_M32R_LO16 9
#define R_M32R_SDA16 10
#define R_M32R_GNU_VTINHERIT 11
#define R_M32R_GNU_VTENTRY 12
#define R_M32R_16_RELA 33
#define R_M32R_32_RELA 34
#define R_M32R_24_RELA 35
#define R_M32R_10_PCREL_RELA 36
#define R_M32R_18_PCREL_RELA 37
#define R_M32R_26_PCREL_RELA 38
#define R_M32R_HI16_ULO_RELA 39
#define R_M32R_HI16_SLO_RELA 40
#define R_M32R_LO16_RELA 41
#define R_M32R_SDA16_RELA 42
#define R_M32R_RELA_GNU_VTINHERIT 43
#define R_M32R_RELA_GNU_VTENTRY 44
#define R_M32R_GOT24 48
#define R_M32R_26_PLTREL 49
#define R_M32R_COPY 50
#define R_M32R_GLOB_DAT 51
#define R_M32R_JMP_SLOT 52
#define R_M32R_RELATIVE 53
#define R_M32R_GOTOFF 54
#define R_M32R_GOTPC24 55
#define R_M32R_GOT16_HI_ULO 56
#define R_M32R_GOT16_HI_SLO 57
#define R_M32R_GOT16_LO 58
#define R_M32R_GOTPC_HI_ULO 59
#define R_M32R_GOTPC_HI_SLO 60
#define R_M32R_GOTPC_LO 61
#define R_M32R_GOTOFF_HI_ULO 62
#define R_M32R_GOTOFF_HI_SLO 63
#define R_M32R_GOTOFF_LO 64
#define R_M32R_NUM 256
/*
* ELF register definitions..
*/
#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
typedef unsigned long elf_greg_t;
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
/* We have no FP mumumu. */
typedef double elf_fpreg_t;
typedef elf_fpreg_t elf_fpregset_t;
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
#define elf_check_arch(x) \
(((x)->e_machine == EM_M32R) || ((x)->e_machine == EM_CYGNUS_M32R))
/*
* These are used to set parameters in the core dumps.
*/
#define ELF_CLASS ELFCLASS32
#if defined(__LITTLE_ENDIAN__)
#define ELF_DATA ELFDATA2LSB
#elif defined(__BIG_ENDIAN__)
#define ELF_DATA ELFDATA2MSB
#else
#error no endian defined
#endif
#define ELF_ARCH EM_M32R
/* r0 is set by ld.so to a pointer to a function which might be
* registered using 'atexit'. This provides a mean for the dynamic
* linker to call DT_FINI functions for shared libraries that have
* been loaded before the code runs.
*
* So that we can use the same startup file with static executables,
* we start programs with a value of 0 to indicate that there is no
* such function.
*/
#define ELF_PLAT_INIT(_r, load_addr) (_r)->r0 = 0
#define ELF_EXEC_PAGESIZE PAGE_SIZE
/*
* This is the location that an ET_DYN program is loaded if exec'ed.
* Typical use of this is to invoke "./ld.so someprog" to test out a
* new version of the loader. We need to make sure that it is out of
* the way of the program that it will "exec", and that there is
* sufficient room for the brk.
*/
#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
now struct_user_regs, they are different) */
#define ELF_CORE_COPY_REGS(pr_reg, regs) \
memcpy((char *)pr_reg, (char *)regs, sizeof (struct pt_regs));
/* This yields a mask that user programs can use to figure out what
instruction set this CPU supports. */
#define ELF_HWCAP (0)
/* This yields a string that ld.so will use to load implementation
specific libraries for optimization. This is more specific in
intent than poking at uname or /proc/cpuinfo. */
#define ELF_PLATFORM (NULL)
#endif /* _ASM_M32R__ELF_H */
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