elf.h 3.3 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. /*
  3. * Copyright (C) 2008-2009 Michal Simek <[email protected]>
  4. * Copyright (C) 2008-2009 PetaLogix
  5. * Copyright (C) 2006 Atmark Techno, Inc.
  6. *
  7. * This file is subject to the terms and conditions of the GNU General Public
  8. * License. See the file "COPYING" in the main directory of this archive
  9. * for more details.
  10. */
  11. #ifndef _UAPI_ASM_MICROBLAZE_ELF_H
  12. #define _UAPI_ASM_MICROBLAZE_ELF_H
  13. #include <linux/elf-em.h>
  14. /*
  15. * Note there is no "official" ELF designation for Microblaze.
  16. * I've snaffled the value from the microblaze binutils source code
  17. * /binutils/microblaze/include/elf/microblaze.h
  18. */
  19. #define EM_MICROBLAZE_OLD 0xbaab
  20. #define ELF_ARCH EM_MICROBLAZE
  21. /*
  22. * This is used to ensure we don't load something for the wrong architecture.
  23. */
  24. #define elf_check_arch(x) ((x)->e_machine == EM_MICROBLAZE \
  25. || (x)->e_machine == EM_MICROBLAZE_OLD)
  26. /*
  27. * These are used to set parameters in the core dumps.
  28. */
  29. #define ELF_CLASS ELFCLASS32
  30. #ifndef __uClinux__
  31. /*
  32. * ELF register definitions..
  33. */
  34. #include <asm/ptrace.h>
  35. #include <asm/byteorder.h>
  36. #ifndef ELF_GREG_T
  37. #define ELF_GREG_T
  38. typedef unsigned long elf_greg_t;
  39. #endif
  40. #ifndef ELF_NGREG
  41. #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
  42. #endif
  43. #ifndef ELF_GREGSET_T
  44. #define ELF_GREGSET_T
  45. typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  46. #endif
  47. #ifndef ELF_FPREGSET_T
  48. #define ELF_FPREGSET_T
  49. /* TBD */
  50. #define ELF_NFPREG 33 /* includes fsr */
  51. typedef unsigned long elf_fpreg_t;
  52. typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
  53. /* typedef struct user_fpu_struct elf_fpregset_t; */
  54. #endif
  55. /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
  56. * use of this is to invoke "./ld.so someprog" to test out a new version of
  57. * the loader. We need to make sure that it is out of the way of the program
  58. * that it will "exec", and that there is sufficient room for the brk.
  59. */
  60. #define ELF_ET_DYN_BASE (0x08000000)
  61. #ifdef __MICROBLAZEEL__
  62. #define ELF_DATA ELFDATA2LSB
  63. #else
  64. #define ELF_DATA ELFDATA2MSB
  65. #endif
  66. #define ELF_EXEC_PAGESIZE PAGE_SIZE
  67. #define ELF_CORE_COPY_REGS(_dest, _regs) \
  68. memcpy((char *) &_dest, (char *) _regs, \
  69. sizeof(struct pt_regs));
  70. /* This yields a mask that user programs can use to figure out what
  71. * instruction set this CPU supports. This could be done in user space,
  72. * but it's not easy, and we've already done it here.
  73. */
  74. #define ELF_HWCAP (0)
  75. /* This yields a string that ld.so will use to load implementation
  76. * specific libraries for optimization. This is more specific in
  77. * intent than poking at uname or /proc/cpuinfo.
  78. * For the moment, we have only optimizations for the Intel generations,
  79. * but that could change...
  80. */
  81. #define ELF_PLATFORM (NULL)
  82. /* Added _f parameter. Is this definition correct: TBD */
  83. #define ELF_PLAT_INIT(_r, _f) \
  84. do { \
  85. _r->r0 = _r->r1 = _r->r2 = _r->r3 = \
  86. _r->r4 = _r->r5 = _r->r6 = _r->r7 = \
  87. _r->r8 = _r->r9 = _r->r10 = _r->r11 = \
  88. _r->r12 = _r->r13 = _r->r14 = _r->r15 = \
  89. _r->r16 = _r->r17 = _r->r18 = _r->r19 = \
  90. _r->r20 = _r->r21 = _r->r22 = _r->r23 = \
  91. _r->r24 = _r->r25 = _r->r26 = _r->r27 = \
  92. _r->r28 = _r->r29 = _r->r30 = _r->r31 = \
  93. 0; \
  94. } while (0)
  95. #endif /* __uClinux__ */
  96. #endif /* _UAPI_ASM_MICROBLAZE_ELF_H */