xref: /kernel/linux/linux-5.10/arch/h8300/include/asm/elf.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_H8300_ELF_H
#define __ASM_H8300_ELF_H

/*
 * ELF register definitions..
 */

#include <asm/ptrace.h>
#include <asm/user.h>

typedef unsigned long elf_greg_t;

#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef unsigned long 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_H8_300)

/*
 * These are used to set parameters in the core dumps.
 */
#define ELF_CLASS	ELFCLASS32
#define ELF_DATA	ELFDATA2MSB
#define ELF_ARCH	EM_H8_300
#if defined(CONFIG_CPU_H8300H)
#define ELF_CORE_EFLAGS 0x810000
#endif
#if defined(CONFIG_CPU_H8S)
#define ELF_CORE_EFLAGS 0x820000
#endif

#define ELF_PLAT_INIT(_r) do { (_r)->er1 = 0; } while (0)

#define ELF_EXEC_PAGESIZE	4096

/* 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         0xD0000000UL

/* 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)

#define R_H8_NONE       0
#define R_H8_DIR32      1
#define R_H8_DIR32_28   2
#define R_H8_DIR32_24   3
#define R_H8_DIR32_16   4
#define R_H8_DIR32U     6
#define R_H8_DIR32U_28  7
#define R_H8_DIR32U_24  8
#define R_H8_DIR32U_20  9
#define R_H8_DIR32U_16 10
#define R_H8_DIR24     11
#define R_H8_DIR24_20  12
#define R_H8_DIR24_16  13
#define R_H8_DIR24U    14
#define R_H8_DIR24U_20 15
#define R_H8_DIR24U_16 16
#define R_H8_DIR16     17
#define R_H8_DIR16U    18
#define R_H8_DIR16S_32 19
#define R_H8_DIR16S_28 20
#define R_H8_DIR16S_24 21
#define R_H8_DIR16S_20 22
#define R_H8_DIR16S    23
#define R_H8_DIR8      24
#define R_H8_DIR8U     25
#define R_H8_DIR8Z_32  26
#define R_H8_DIR8Z_28  27
#define R_H8_DIR8Z_24  28
#define R_H8_DIR8Z_20  29
#define R_H8_DIR8Z_16  30
#define R_H8_PCREL16   31
#define R_H8_PCREL8    32
#define R_H8_BPOS      33
#define R_H8_PCREL32   34
#define R_H8_GOT32O    35
#define R_H8_GOT16O    36
#define R_H8_DIR16A8   59
#define R_H8_DIR16R8   60
#define R_H8_DIR24A8   61
#define R_H8_DIR24R8   62
#define R_H8_DIR32A16  63
#define R_H8_ABS32     65
#define R_H8_ABS32A16 127

#endif