arch/arc/include/asm/elf.h

   1 /*
   2  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #ifndef __ASM_ARC_ELF_H
  10 #define __ASM_ARC_ELF_H
  11
  12 #include <linux/types.h>
  13 #include <uapi/asm/elf.h>
  14
  15 /* These ELF defines belong to uapi but libc elf.h already defines them */
  16 #define EM_ARCOMPACT            93
  17
  18 /* ARC Relocations (kernel Modules only) */
  19 #define  R_ARC_32               0x4
  20 #define  R_ARC_32_ME            0x1B
  21 #define  R_ARC_S25H_PCREL       0x10
  22 #define  R_ARC_S25W_PCREL       0x11
  23
  24 /*to set parameters in the core dumps */
  25 #define ELF_ARCH                EM_ARCOMPACT
  26 #define ELF_CLASS               ELFCLASS32
  27
  28 #ifdef CONFIG_CPU_BIG_ENDIAN
  29 #define ELF_DATA                ELFDATA2MSB
  30 #else
  31 #define ELF_DATA                ELFDATA2LSB
  32 #endif
  33
  34 /*
  35  * To ensure that
  36  *  -we don't load something for the wrong architecture.
  37  *  -The userspace is using the correct syscall ABI
  38  */
  39 struct elf32_hdr;
  40 extern int elf_check_arch(const struct elf32_hdr *);
  41 #define elf_check_arch  elf_check_arch
  42
  43 #define CORE_DUMP_USE_REGSET
  44
  45 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
  46
  47 /*
  48  * This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  49  * use of this is to invoke "./ld.so someprog" to test out a new version of
  50  * the loader.  We need to make sure that it is out of the way of the program
  51  * that it will "exec", and that there is sufficient room for the brk.
  52  */
  53 #define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
  54
  55 /*
  56  * When the program starts, a1 contains a pointer to a function to be
  57  * registered with atexit, as per the SVR4 ABI.  A value of 0 means we
  58  * have no such handler.
  59  */
  60 #define ELF_PLAT_INIT(_r, load_addr)    ((_r)->r0 = 0)
  61
  62 /*
  63  * This yields a mask that user programs can use to figure out what
  64  * instruction set this cpu supports.
  65  */
  66 #define ELF_HWCAP       (0)
  67
  68 /*
  69  * This yields a string that ld.so will use to load implementation
  70  * specific libraries for optimization.  This is more specific in
  71  * intent than poking at uname or /proc/cpuinfo.
  72  */
  73 #define ELF_PLATFORM    (NULL)
  74
  75 #endif