ptrace_arm.h 3.8 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. /*
  3. * arch/arm/include/asm/ptrace.h
  4. *
  5. * Copyright (C) 1996-2003 Russell King
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License version 2 as
  9. * published by the Free Software Foundation.
  10. */
  11. #ifndef __ASM_ARM_PTRACE_H
  12. #define __ASM_ARM_PTRACE_H
  13. #include <asm/hwcap.h>
  14. #define PTRACE_GETREGS 12
  15. #define PTRACE_SETREGS 13
  16. #define PTRACE_GETFPREGS 14
  17. #define PTRACE_SETFPREGS 15
  18. /* PTRACE_ATTACH is 16 */
  19. /* PTRACE_DETACH is 17 */
  20. #define PTRACE_GETWMMXREGS 18
  21. #define PTRACE_SETWMMXREGS 19
  22. /* 20 is unused */
  23. #define PTRACE_OLDSETOPTIONS 21
  24. #define PTRACE_GET_THREAD_AREA 22
  25. #define PTRACE_SET_SYSCALL 23
  26. /* PTRACE_SYSCALL is 24 */
  27. #define PTRACE_GETCRUNCHREGS 25 /* obsolete */
  28. #define PTRACE_SETCRUNCHREGS 26 /* obsolete */
  29. #define PTRACE_GETVFPREGS 27
  30. #define PTRACE_SETVFPREGS 28
  31. #define PTRACE_GETHBPREGS 29
  32. #define PTRACE_SETHBPREGS 30
  33. #define PTRACE_GETFDPIC 31
  34. #define PTRACE_GETFDPIC_EXEC 0
  35. #define PTRACE_GETFDPIC_INTERP 1
  36. /*
  37. * PSR bits
  38. * Note on V7M there is no mode contained in the PSR
  39. */
  40. #define USR26_MODE 0x00000000
  41. #define FIQ26_MODE 0x00000001
  42. #define IRQ26_MODE 0x00000002
  43. #define SVC26_MODE 0x00000003
  44. #define USR_MODE 0x00000010
  45. #define SVC_MODE 0x00000013
  46. #define FIQ_MODE 0x00000011
  47. #define IRQ_MODE 0x00000012
  48. #define MON_MODE 0x00000016
  49. #define ABT_MODE 0x00000017
  50. #define HYP_MODE 0x0000001a
  51. #define UND_MODE 0x0000001b
  52. #define SYSTEM_MODE 0x0000001f
  53. #define MODE32_BIT 0x00000010
  54. #define MODE_MASK 0x0000001f
  55. #define V4_PSR_T_BIT 0x00000020 /* >= V4T, but not V7M */
  56. #define V7M_PSR_T_BIT 0x01000000
  57. /* for compatibility */
  58. #define PSR_T_BIT V4_PSR_T_BIT
  59. #define PSR_F_BIT 0x00000040 /* >= V4, but not V7M */
  60. #define PSR_I_BIT 0x00000080 /* >= V4, but not V7M */
  61. #define PSR_A_BIT 0x00000100 /* >= V6, but not V7M */
  62. #define PSR_E_BIT 0x00000200 /* >= V6, but not V7M */
  63. #define PSR_J_BIT 0x01000000 /* >= V5J, but not V7M */
  64. #define PSR_Q_BIT 0x08000000 /* >= V5E, including V7M */
  65. #define PSR_V_BIT 0x10000000
  66. #define PSR_C_BIT 0x20000000
  67. #define PSR_Z_BIT 0x40000000
  68. #define PSR_N_BIT 0x80000000
  69. /*
  70. * Groups of PSR bits
  71. */
  72. #define PSR_f 0xff000000 /* Flags */
  73. #define PSR_s 0x00ff0000 /* Status */
  74. #define PSR_x 0x0000ff00 /* Extension */
  75. #define PSR_c 0x000000ff /* Control */
  76. /*
  77. * ARMv7 groups of PSR bits
  78. */
  79. #define APSR_MASK 0xf80f0000 /* N, Z, C, V, Q and GE flags */
  80. #define PSR_ISET_MASK 0x01000010 /* ISA state (J, T) mask */
  81. #define PSR_IT_MASK 0x0600fc00 /* If-Then execution state mask */
  82. #define PSR_ENDIAN_MASK 0x00000200 /* Endianness state mask */
  83. /*
  84. * Default endianness state
  85. */
  86. #ifdef CONFIG_CPU_ENDIAN_BE8
  87. #define PSR_ENDSTATE PSR_E_BIT
  88. #else
  89. #define PSR_ENDSTATE 0
  90. #endif
  91. /*
  92. * These are 'magic' values for PTRACE_PEEKUSR that return info about where a
  93. * process is located in memory.
  94. */
  95. #define PT_TEXT_ADDR 0x10000
  96. #define PT_DATA_ADDR 0x10004
  97. #define PT_TEXT_END_ADDR 0x10008
  98. #ifndef __ASSEMBLY__
  99. /*
  100. * This struct defines the way the registers are stored on the
  101. * stack during a system call. Note that sizeof(struct pt_regs)
  102. * has to be a multiple of 8.
  103. */
  104. struct pt_regs {
  105. long uregs[18];
  106. };
  107. #define ARM_cpsr uregs[16]
  108. #define ARM_pc uregs[15]
  109. #define ARM_lr uregs[14]
  110. #define ARM_sp uregs[13]
  111. #define ARM_ip uregs[12]
  112. #define ARM_fp uregs[11]
  113. #define ARM_r10 uregs[10]
  114. #define ARM_r9 uregs[9]
  115. #define ARM_r8 uregs[8]
  116. #define ARM_r7 uregs[7]
  117. #define ARM_r6 uregs[6]
  118. #define ARM_r5 uregs[5]
  119. #define ARM_r4 uregs[4]
  120. #define ARM_r3 uregs[3]
  121. #define ARM_r2 uregs[2]
  122. #define ARM_r1 uregs[1]
  123. #define ARM_r0 uregs[0]
  124. #define ARM_ORIG_r0 uregs[17]
  125. /*
  126. * The size of the user-visible VFP state as seen by PTRACE_GET/SETVFPREGS
  127. * and core dumps.
  128. */
  129. #define ARM_VFPREGS_SIZE ( 32 * 8 /*fpregs*/ + 4 /*fpscr*/ )
  130. #endif /* __ASSEMBLY__ */
  131. #endif /* __ASM_ARM_PTRACE_H */