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Linux/arch/m32r/include/asm/elf.h

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  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 
 68 typedef unsigned long elf_greg_t;
 69 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 70 
 71 /* We have no FP mumumu.  */
 72 typedef double elf_fpreg_t;
 73 typedef 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) \
132         set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
133 
134 #endif  /* _ASM_M32R__ELF_H */
135 

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