arch/sparc/include/asm/ptrace_32.h

   1 #ifndef _SPARC_PTRACE_H
   2 #define _SPARC_PTRACE_H
   3
   4 #include <asm/psr.h>
   5
   6 /* This struct defines the way the registers are stored on the
   7  * stack during a system call and basically all traps.
   8  */
   9
  10 #ifndef __ASSEMBLY__
  11
  12 #include <linux/types.h>
  13
  14 struct pt_regs {
  15         unsigned long psr;
  16         unsigned long pc;
  17         unsigned long npc;
  18         unsigned long y;
  19         unsigned long u_regs[16]; /* globals and ins */
  20 };
  21
  22 #define UREG_G0        0
  23 #define UREG_G1        1
  24 #define UREG_G2        2
  25 #define UREG_G3        3
  26 #define UREG_G4        4
  27 #define UREG_G5        5
  28 #define UREG_G6        6
  29 #define UREG_G7        7
  30 #define UREG_I0        8
  31 #define UREG_I1        9
  32 #define UREG_I2        10
  33 #define UREG_I3        11
  34 #define UREG_I4        12
  35 #define UREG_I5        13
  36 #define UREG_I6        14
  37 #define UREG_I7        15
  38 #define UREG_WIM       UREG_G0
  39 #define UREG_FADDR     UREG_G0
  40 #define UREG_FP        UREG_I6
  41 #define UREG_RETPC     UREG_I7
  42
  43 /* A register window */
  44 struct reg_window {
  45         unsigned long locals[8];
  46         unsigned long ins[8];
  47 };
  48
  49 /* A Sparc stack frame */
  50 struct sparc_stackf {
  51         unsigned long locals[8];
  52         unsigned long ins[6];
  53         struct sparc_stackf *fp;
  54         unsigned long callers_pc;
  55         char *structptr;
  56         unsigned long xargs[6];
  57         unsigned long xxargs[1];
  58 };
  59
  60 #define TRACEREG_SZ   sizeof(struct pt_regs)
  61 #define STACKFRAME_SZ sizeof(struct sparc_stackf)
  62
  63 #ifdef __KERNEL__
  64
  65 #include <asm/system.h>
  66
  67 static inline bool pt_regs_is_syscall(struct pt_regs *regs)
  68 {
  69         return (regs->psr & PSR_SYSCALL);
  70 }
  71
  72 static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
  73 {
  74         return (regs->psr &= ~PSR_SYSCALL);
  75 }
  76
  77 #define arch_ptrace_stop_needed(exit_code, info) \
  78 ({      flush_user_windows(); \
  79         current_thread_info()->w_saved != 0;    \
  80 })
  81
  82 #define arch_ptrace_stop(exit_code, info) \
  83         synchronize_user_stack()
  84
  85 #define user_mode(regs) (!((regs)->psr & PSR_PS))
  86 #define instruction_pointer(regs) ((regs)->pc)
  87 #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
  88 unsigned long profile_pc(struct pt_regs *);
  89 extern void show_regs(struct pt_regs *);
  90 #endif
  91
  92 #else /* __ASSEMBLY__ */
  93 /* For assembly code. */
  94 #define TRACEREG_SZ       0x50
  95 #define STACKFRAME_SZ     0x60
  96 #endif
  97
  98 /*
  99  * The asm-offsets.h is a generated file, so we cannot include it.
 100  * It may be OK for glibc headers, but it's utterly pointless for C code.
 101  * The assembly code using those offsets has to include it explicitly.
 102  */
 103 /* #include <asm/asm-offsets.h> */
 104
 105 /* These are for pt_regs. */
 106 #define PT_PSR    0x0
 107 #define PT_PC     0x4
 108 #define PT_NPC    0x8
 109 #define PT_Y      0xc
 110 #define PT_G0     0x10
 111 #define PT_WIM    PT_G0
 112 #define PT_G1     0x14
 113 #define PT_G2     0x18
 114 #define PT_G3     0x1c
 115 #define PT_G4     0x20
 116 #define PT_G5     0x24
 117 #define PT_G6     0x28
 118 #define PT_G7     0x2c
 119 #define PT_I0     0x30
 120 #define PT_I1     0x34
 121 #define PT_I2     0x38
 122 #define PT_I3     0x3c
 123 #define PT_I4     0x40
 124 #define PT_I5     0x44
 125 #define PT_I6     0x48
 126 #define PT_FP     PT_I6
 127 #define PT_I7     0x4c
 128
 129 /* Reg_window offsets */
 130 #define RW_L0     0x00
 131 #define RW_L1     0x04
 132 #define RW_L2     0x08
 133 #define RW_L3     0x0c
 134 #define RW_L4     0x10
 135 #define RW_L5     0x14
 136 #define RW_L6     0x18
 137 #define RW_L7     0x1c
 138 #define RW_I0     0x20
 139 #define RW_I1     0x24
 140 #define RW_I2     0x28
 141 #define RW_I3     0x2c
 142 #define RW_I4     0x30
 143 #define RW_I5     0x34
 144 #define RW_I6     0x38
 145 #define RW_I7     0x3c
 146
 147 /* Stack_frame offsets */
 148 #define SF_L0     0x00
 149 #define SF_L1     0x04
 150 #define SF_L2     0x08
 151 #define SF_L3     0x0c
 152 #define SF_L4     0x10
 153 #define SF_L5     0x14
 154 #define SF_L6     0x18
 155 #define SF_L7     0x1c
 156 #define SF_I0     0x20
 157 #define SF_I1     0x24
 158 #define SF_I2     0x28
 159 #define SF_I3     0x2c
 160 #define SF_I4     0x30
 161 #define SF_I5     0x34
 162 #define SF_FP     0x38
 163 #define SF_PC     0x3c
 164 #define SF_RETP   0x40
 165 #define SF_XARG0  0x44
 166 #define SF_XARG1  0x48
 167 #define SF_XARG2  0x4c
 168 #define SF_XARG3  0x50
 169 #define SF_XARG4  0x54
 170 #define SF_XARG5  0x58
 171 #define SF_XXARG  0x5c
 172
 173 /* Stuff for the ptrace system call */
 174 #define PTRACE_SPARC_DETACH       11
 175 #define PTRACE_GETREGS            12
 176 #define PTRACE_SETREGS            13
 177 #define PTRACE_GETFPREGS          14
 178 #define PTRACE_SETFPREGS          15
 179 #define PTRACE_READDATA           16
 180 #define PTRACE_WRITEDATA          17
 181 #define PTRACE_READTEXT           18
 182 #define PTRACE_WRITETEXT          19
 183 #define PTRACE_GETFPAREGS         20
 184 #define PTRACE_SETFPAREGS         21
 185
 186 #endif /* !(_SPARC_PTRACE_H) */