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Linux/arch/microblaze/include/uapi/asm/elf.h

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  1 /*
  2  * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
  3  * Copyright (C) 2008-2009 PetaLogix
  4  * Copyright (C) 2006 Atmark Techno, Inc.
  5  *
  6  * This file is subject to the terms and conditions of the GNU General Public
  7  * License. See the file "COPYING" in the main directory of this archive
  8  * for more details.
  9  */
 10 
 11 #ifndef _UAPI_ASM_MICROBLAZE_ELF_H
 12 #define _UAPI_ASM_MICROBLAZE_ELF_H
 13 
 14 #include <linux/elf-em.h>
 15 
 16 /*
 17  * Note there is no "official" ELF designation for Microblaze.
 18  * I've snaffled the value from the microblaze binutils source code
 19  * /binutils/microblaze/include/elf/microblaze.h
 20  */
 21 #define EM_MICROBLAZE_OLD       0xbaab
 22 #define ELF_ARCH                EM_MICROBLAZE
 23 
 24 /*
 25  * This is used to ensure we don't load something for the wrong architecture.
 26  */
 27 #define elf_check_arch(x)       ((x)->e_machine == EM_MICROBLAZE \
 28                                  || (x)->e_machine == EM_MICROBLAZE_OLD)
 29 
 30 /*
 31  * These are used to set parameters in the core dumps.
 32  */
 33 #define ELF_CLASS       ELFCLASS32
 34 
 35 #ifndef __uClinux__
 36 
 37 /*
 38  * ELF register definitions..
 39  */
 40 
 41 #include <asm/ptrace.h>
 42 #include <asm/byteorder.h>
 43 
 44 #ifndef ELF_GREG_T
 45 #define ELF_GREG_T
 46 typedef unsigned long elf_greg_t;
 47 #endif
 48 
 49 #ifndef ELF_NGREG
 50 #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
 51 #endif
 52 
 53 #ifndef ELF_GREGSET_T
 54 #define ELF_GREGSET_T
 55 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 56 #endif
 57 
 58 #ifndef ELF_FPREGSET_T
 59 #define ELF_FPREGSET_T
 60 
 61 /* TBD */
 62 #define ELF_NFPREG      33      /* includes fsr */
 63 typedef unsigned long elf_fpreg_t;
 64 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 65 
 66 /* typedef struct user_fpu_struct elf_fpregset_t; */
 67 #endif
 68 
 69 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 70  * use of this is to invoke "./ld.so someprog" to test out a new version of
 71  * the loader.  We need to make sure that it is out of the way of the program
 72  * that it will "exec", and that there is sufficient room for the brk.
 73  */
 74 
 75 #define ELF_ET_DYN_BASE         (0x08000000)
 76 
 77 #ifdef __MICROBLAZEEL__
 78 #define ELF_DATA        ELFDATA2LSB
 79 #else
 80 #define ELF_DATA        ELFDATA2MSB
 81 #endif
 82 
 83 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
 84 
 85 
 86 #define ELF_CORE_COPY_REGS(_dest, _regs)                        \
 87         memcpy((char *) &_dest, (char *) _regs,         \
 88         sizeof(struct pt_regs));
 89 
 90 /* This yields a mask that user programs can use to figure out what
 91  * instruction set this CPU supports.  This could be done in user space,
 92  * but it's not easy, and we've already done it here.
 93  */
 94 #define ELF_HWCAP       (0)
 95 
 96 /* This yields a string that ld.so will use to load implementation
 97  * specific libraries for optimization.  This is more specific in
 98  * intent than poking at uname or /proc/cpuinfo.
 99 
100  * For the moment, we have only optimizations for the Intel generations,
101  * but that could change...
102  */
103 #define ELF_PLATFORM  (NULL)
104 
105 /* Added _f parameter. Is this definition correct: TBD */
106 #define ELF_PLAT_INIT(_r, _f)                           \
107 do {                                                    \
108         _r->r0 =  _r->r1 =  _r->r2 =  _r->r3 =          \
109         _r->r4 =  _r->r5 =  _r->r6 =  _r->r7 =          \
110         _r->r8 =  _r->r9 =  _r->r10 = _r->r11 =         \
111         _r->r12 = _r->r13 = _r->r14 = _r->r15 =         \
112         _r->r16 = _r->r17 = _r->r18 = _r->r19 =         \
113         _r->r20 = _r->r21 = _r->r22 = _r->r23 =         \
114         _r->r24 = _r->r25 = _r->r26 = _r->r27 =         \
115         _r->r28 = _r->r29 = _r->r30 = _r->r31 =         \
116         0;                                              \
117 } while (0)
118 
119 
120 #endif /* __uClinux__ */
121 
122 #endif /* _UAPI_ASM_MICROBLAZE_ELF_H */
123 

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