1#ifndef _ASM_M32R__ELF_H
  2#define _ASM_M32R__ELF_H
  3
  4/*
  5 * ELF-specific definitions.
  6 *
  7 * Copyright (C) 1999-2004, Renesas Technology Corp.
  8 *      Hirokazu Takata <takata at linux-m32r.org>
  9 */
 10
 11#include <asm/ptrace.h>
 12#include <asm/user.h>
 13#include <asm/page.h>
 14
 15/* M32R relocation types  */
 16#define	R_M32R_NONE		0
 17#define	R_M32R_16		1
 18#define	R_M32R_32		2
 19#define	R_M32R_24		3
 20#define	R_M32R_10_PCREL		4
 21#define	R_M32R_18_PCREL		5
 22#define	R_M32R_26_PCREL		6
 23#define	R_M32R_HI16_ULO		7
 24#define	R_M32R_HI16_SLO		8
 25#define	R_M32R_LO16		9
 26#define	R_M32R_SDA16		10
 27#define	R_M32R_GNU_VTINHERIT	11
 28#define	R_M32R_GNU_VTENTRY	12
 29
 30#define R_M32R_16_RELA		33
 31#define R_M32R_32_RELA		34
 32#define R_M32R_24_RELA		35
 33#define R_M32R_10_PCREL_RELA	36
 34#define R_M32R_18_PCREL_RELA	37
 35#define R_M32R_26_PCREL_RELA	38
 36#define R_M32R_HI16_ULO_RELA	39
 37#define R_M32R_HI16_SLO_RELA	40
 38#define R_M32R_LO16_RELA	41
 39#define R_M32R_SDA16_RELA	42
 40#define	R_M32R_RELA_GNU_VTINHERIT	43
 41#define	R_M32R_RELA_GNU_VTENTRY	44
 42
 43#define R_M32R_GOT24		48
 44#define R_M32R_26_PLTREL	49
 45#define R_M32R_COPY		50
 46#define R_M32R_GLOB_DAT		51
 47#define R_M32R_JMP_SLOT		52
 48#define R_M32R_RELATIVE		53
 49#define R_M32R_GOTOFF		54
 50#define R_M32R_GOTPC24		55
 51#define R_M32R_GOT16_HI_ULO	56
 52#define R_M32R_GOT16_HI_SLO	57
 53#define R_M32R_GOT16_LO		58
 54#define R_M32R_GOTPC_HI_ULO	59
 55#define R_M32R_GOTPC_HI_SLO	60
 56#define R_M32R_GOTPC_LO		61
 57#define R_M32R_GOTOFF_HI_ULO	62
 58#define R_M32R_GOTOFF_HI_SLO	63
 59#define R_M32R_GOTOFF_LO	64
 60
 61#define R_M32R_NUM		256
 62
 63/*
 64 * ELF register definitions..
 65 */
 66#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
 67
 68typedef unsigned long elf_greg_t;
 69typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 70
 71/* We have no FP mumumu.  */
 72typedef double elf_fpreg_t;
 73typedef elf_fpreg_t elf_fpregset_t;
 74
 75/*
 76 * This is used to ensure we don't load something for the wrong architecture.
 77 */
 78#define elf_check_arch(x) \
 79	(((x)->e_machine == EM_M32R) || ((x)->e_machine == EM_CYGNUS_M32R))
 80
 81/*
 82 * These are used to set parameters in the core dumps.
 83 */
 84#define ELF_CLASS	ELFCLASS32
 85#if defined(__LITTLE_ENDIAN__)
 86#define ELF_DATA	ELFDATA2LSB
 87#elif defined(__BIG_ENDIAN__)
 88#define ELF_DATA	ELFDATA2MSB
 89#else
 90#error no endian defined
 91#endif
 92#define ELF_ARCH	EM_M32R
 93
 94/* r0 is set by ld.so to a pointer to a function which might be
 95 * registered using 'atexit'.  This provides a mean for the dynamic
 96 * linker to call DT_FINI functions for shared libraries that have
 97 * been loaded before the code runs.
 98 *
 99 * So that we can use the same startup file with static executables,
100 * we start programs with a value of 0 to indicate that there is no
101 * such function.
102 */
103#define ELF_PLAT_INIT(_r, load_addr)	(_r)->r0 = 0
104
105#define ELF_EXEC_PAGESIZE	PAGE_SIZE
106
107/*
108 * This is the location that an ET_DYN program is loaded if exec'ed.
109 * Typical use of this is to invoke "./ld.so someprog" to test out a
110 * new version of the loader.  We need to make sure that it is out of
111 * the way of the program that it will "exec", and that there is
112 * sufficient room for the brk.
113 */
114#define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
115
116/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
117   now struct_user_regs, they are different) */
118
119#define ELF_CORE_COPY_REGS(pr_reg, regs)  \
120	memcpy((char *)pr_reg, (char *)regs, sizeof (struct pt_regs));
121
122/* This yields a mask that user programs can use to figure out what
123   instruction set this CPU supports.  */
124#define ELF_HWCAP	(0)
125
126/* This yields a string that ld.so will use to load implementation
127   specific libraries for optimization.  This is more specific in
128   intent than poking at uname or /proc/cpuinfo.  */
129#define ELF_PLATFORM	(NULL)
130
131#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
132
133#endif  /* _ASM_M32R__ELF_H */