arch/sparc/include/asm/stack.h

   1 /* SPARC stack layout Macros and structures,
   2  * mainly taken from BCC (the Bare C compiler for
   3  * SPARC LEON2/3) sources.
   4  *
   5  * (C) Copyright 2007
   6  * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #ifndef __SPARC_STACK_H__
  12 #define __SPARC_STACK_H__
  13
  14 #include <asm/ptrace.h>
  15
  16 #ifndef __ASSEMBLER__
  17
  18 #ifdef __cplusplus
  19 extern "C" {
  20 #endif
  21
  22 #define PT_REGS_SZ   sizeof(struct pt_regs)
  23
  24 /* A Sparc stack frame */
  25         struct sparc_stackframe_regs {
  26                 unsigned long sf_locals[8];
  27                 unsigned long sf_ins[6];
  28                 struct sparc_stackframe_regs *sf_fp;
  29                 unsigned long sf_callers_pc;
  30                 char *sf_structptr;
  31                 unsigned long sf_xargs[6];
  32                 unsigned long sf_xxargs[1];
  33         };
  34 #define SF_REGS_SZ sizeof(struct sparc_stackframe_regs)
  35
  36 /* A register window */
  37         struct sparc_regwindow_regs {
  38                 unsigned long locals[8];
  39                 unsigned long ins[8];
  40         };
  41 #define RW_REGS_SZ sizeof(struct sparc_regwindow_regs)
  42
  43 /* A fpu window */
  44         struct sparc_fpuwindow_regs {
  45                 unsigned long locals[32];
  46                 unsigned long fsr;
  47                 unsigned long lastctx;
  48         };
  49 #define FW_REGS_SZ sizeof(struct sparc_fpuwindow_regs)
  50
  51 #ifdef __cplusplus
  52 }
  53 #endif
  54 #else
  55 #define PT_REGS_SZ      0x50    /* 20*4 */
  56 #define SF_REGS_SZ      0x60    /* 24*4 */
  57 #define RW_REGS_SZ      0x20    /* 16*4 */
  58 #define FW_REGS_SZ      0x88    /* 34*4 */
  59 #endif                          /* !ASM */
  60
  61 /* These are for pt_regs. */
  62 #define PT_PSR          0x0
  63 #define PT_PC           0x4
  64 #define PT_NPC          0x8
  65 #define PT_Y            0xc
  66 #define PT_G0           0x10
  67 #define PT_WIM          PT_G0
  68 #define PT_G1           0x14
  69 #define PT_G2           0x18
  70 #define PT_G3           0x1c
  71 #define PT_G4           0x20
  72 #define PT_G5           0x24
  73 #define PT_G6           0x28
  74 #define PT_G7           0x2c
  75 #define PT_I0           0x30
  76 #define PT_I1           0x34
  77 #define PT_I2           0x38
  78 #define PT_I3           0x3c
  79 #define PT_I4           0x40
  80 #define PT_I5           0x44
  81 #define PT_I6           0x48
  82 #define PT_FP           PT_I6
  83 #define PT_I7           0x4c
  84
  85 /* Stack_frame offsets */
  86 #define SF_L0           0x00
  87 #define SF_L1           0x04
  88 #define SF_L2           0x08
  89 #define SF_L3           0x0c
  90 #define SF_L4           0x10
  91 #define SF_L5           0x14
  92 #define SF_L6           0x18
  93 #define SF_L7           0x1c
  94 #define SF_I0           0x20
  95 #define SF_I1           0x24
  96 #define SF_I2           0x28
  97 #define SF_I3           0x2c
  98 #define SF_I4           0x30
  99 #define SF_I5           0x34
 100 #define SF_FP           0x38
 101 #define SF_PC           0x3c
 102 #define SF_RETP         0x40
 103 #define SF_XARG0        0x44
 104 #define SF_XARG1        0x48
 105 #define SF_XARG2        0x4c
 106 #define SF_XARG3        0x50
 107 #define SF_XARG4        0x54
 108 #define SF_XARG5        0x58
 109 #define SF_XXARG        0x5c
 110
 111 /* Reg_window offsets */
 112 #define RW_L0           0x00
 113 #define RW_L1           0x04
 114 #define RW_L2           0x08
 115 #define RW_L3           0x0c
 116 #define RW_L4           0x10
 117 #define RW_L5           0x14
 118 #define RW_L6           0x18
 119 #define RW_L7           0x1c
 120 #define RW_I0           0x20
 121 #define RW_I1           0x24
 122 #define RW_I2           0x28
 123 #define RW_I3           0x2c
 124 #define RW_I4           0x30
 125 #define RW_I5           0x34
 126 #define RW_I6           0x38
 127 #define RW_I7           0x3c
 128
 129 /* Fpu_window offsets */
 130 #define FW_F0           0x00
 131 #define FW_F2           0x08
 132 #define FW_F4           0x10
 133 #define FW_F6           0x18
 134 #define FW_F8           0x20
 135 #define FW_F10          0x28
 136 #define FW_F12          0x30
 137 #define FW_F14          0x38
 138 #define FW_F16          0x40
 139 #define FW_F18          0x48
 140 #define FW_F20          0x50
 141 #define FW_F22          0x58
 142 #define FW_F24          0x60
 143 #define FW_F26          0x68
 144 #define FW_F28          0x70
 145 #define FW_F30          0x78
 146 #define FW_FSR          0x80
 147
 148 #endif