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      1 /* libunwind - a platform-independent unwind library
      2    Copyright (C) 2006-2007 IBM
      3    Contributed by
      4      Corey Ashford <cjashfor (at) us.ibm.com>
      5      Jose Flavio Aguilar Paulino <jflavio (at) br.ibm.com> <joseflavio (at) gmail.com>
      6 
      7 Permission is hereby granted, free of charge, to any person obtaining
      8 a copy of this software and associated documentation files (the
      9 "Software"), to deal in the Software without restriction, including
     10 without limitation the rights to use, copy, modify, merge, publish,
     11 distribute, sublicense, and/or sell copies of the Software, and to
     12 permit persons to whom the Software is furnished to do so, subject to
     13 the following conditions:
     14 
     15 The above copyright notice and this permission notice shall be
     16 included in all copies or substantial portions of the Software.
     17 
     18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     21 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
     25 
     26 #ifndef ucontext_i_h
     27 #define ucontext_i_h
     28 
     29 #include <ucontext.h>
     30 
     31 /* These values were derived by reading
     32    /usr/src/linux-2.6.18-1.8/arch/um/include/sysdep-ppc/ptrace.h and
     33    /usr/src/linux-2.6.18-1.8/arch/powerpc/kernel/ppc32.h
     34 */
     35 
     36 #define NIP_IDX		32
     37 #define MSR_IDX		33
     38 #define ORIG_GPR3_IDX	34
     39 #define CTR_IDX		35
     40 #define LINK_IDX	36
     41 #define XER_IDX		37
     42 #define CCR_IDX		38
     43 #define SOFTE_IDX	39
     44 #define TRAP_IDX	40
     45 #define DAR_IDX		41
     46 #define DSISR_IDX	42
     47 #define RESULT_IDX	43
     48 
     49 #define VSCR_IDX        32
     50 #define VRSAVE_IDX      33
     51 
     52 /* These are dummy structures used only for obtaining the offsets of the
     53    various structure members. */
     54 static ucontext_t dmy_ctxt;
     55 static vrregset_t dmy_vrregset;
     56 
     57 #define UC_MCONTEXT_GREGS_R0 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[0] - (void *)&dmy_ctxt)
     58 #define UC_MCONTEXT_GREGS_R1 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[1] - (void *)&dmy_ctxt)
     59 #define UC_MCONTEXT_GREGS_R2 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[2] - (void *)&dmy_ctxt)
     60 #define UC_MCONTEXT_GREGS_R3 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[3] - (void *)&dmy_ctxt)
     61 #define UC_MCONTEXT_GREGS_R4 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[4] - (void *)&dmy_ctxt)
     62 #define UC_MCONTEXT_GREGS_R5 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[5] - (void *)&dmy_ctxt)
     63 #define UC_MCONTEXT_GREGS_R6 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[6] - (void *)&dmy_ctxt)
     64 #define UC_MCONTEXT_GREGS_R7 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[7] - (void *)&dmy_ctxt)
     65 #define UC_MCONTEXT_GREGS_R8 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[8] - (void *)&dmy_ctxt)
     66 #define UC_MCONTEXT_GREGS_R9 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[9] - (void *)&dmy_ctxt)
     67 #define UC_MCONTEXT_GREGS_R10 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[10] - (void *)&dmy_ctxt)
     68 #define UC_MCONTEXT_GREGS_R11 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[11] - (void *)&dmy_ctxt)
     69 #define UC_MCONTEXT_GREGS_R12 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[12] - (void *)&dmy_ctxt)
     70 #define UC_MCONTEXT_GREGS_R13 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[13] - (void *)&dmy_ctxt)
     71 #define UC_MCONTEXT_GREGS_R14 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[14] - (void *)&dmy_ctxt)
     72 #define UC_MCONTEXT_GREGS_R15 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[15] - (void *)&dmy_ctxt)
     73 #define UC_MCONTEXT_GREGS_R16 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[16] - (void *)&dmy_ctxt)
     74 #define UC_MCONTEXT_GREGS_R17 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[17] - (void *)&dmy_ctxt)
     75 #define UC_MCONTEXT_GREGS_R18 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[18] - (void *)&dmy_ctxt)
     76 #define UC_MCONTEXT_GREGS_R19 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[19] - (void *)&dmy_ctxt)
     77 #define UC_MCONTEXT_GREGS_R20 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[20] - (void *)&dmy_ctxt)
     78 #define UC_MCONTEXT_GREGS_R21 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[21] - (void *)&dmy_ctxt)
     79 #define UC_MCONTEXT_GREGS_R22 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[22] - (void *)&dmy_ctxt)
     80 #define UC_MCONTEXT_GREGS_R23 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[23] - (void *)&dmy_ctxt)
     81 #define UC_MCONTEXT_GREGS_R24 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[24] - (void *)&dmy_ctxt)
     82 #define UC_MCONTEXT_GREGS_R25 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[25] - (void *)&dmy_ctxt)
     83 #define UC_MCONTEXT_GREGS_R26 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[26] - (void *)&dmy_ctxt)
     84 #define UC_MCONTEXT_GREGS_R27 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[27] - (void *)&dmy_ctxt)
     85 #define UC_MCONTEXT_GREGS_R28 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[28] - (void *)&dmy_ctxt)
     86 #define UC_MCONTEXT_GREGS_R29 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[29] - (void *)&dmy_ctxt)
     87 #define UC_MCONTEXT_GREGS_R30 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[30] - (void *)&dmy_ctxt)
     88 #define UC_MCONTEXT_GREGS_R31 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[31] - (void *)&dmy_ctxt)
     89 #define UC_MCONTEXT_GREGS_NIP ((void *)&dmy_ctxt.uc_mcontext.gp_regs[NIP_IDX] - (void *)&dmy_ctxt)
     90 #define UC_MCONTEXT_GREGS_MSR ((void *)&dmy_ctxt.uc_mcontext.gp_regs[MSR_IDX] - (void *)&dmy_ctxt)
     91 #define UC_MCONTEXT_GREGS_ORIG_GPR3 ((void *)&dmy_ctxt.uc_mcontext.gp_regs[ORIG_GPR3_IDX] - (void *)&dmy_ctxt)
     92 #define UC_MCONTEXT_GREGS_CTR ((void *)&dmy_ctxt.uc_mcontext.gp_regs[CTR_IDX] - (void *)&dmy_ctxt)
     93 #define UC_MCONTEXT_GREGS_LINK ((void *)&dmy_ctxt.uc_mcontext.gp_regs[LINK_IDX] - (void *)&dmy_ctxt)
     94 #define UC_MCONTEXT_GREGS_XER ((void *)&dmy_ctxt.uc_mcontext.gp_regs[XER_IDX] - (void *)&dmy_ctxt)
     95 #define UC_MCONTEXT_GREGS_CCR ((void *)&dmy_ctxt.uc_mcontext.gp_regs[CCR_IDX] - (void *)&dmy_ctxt)
     96 #define UC_MCONTEXT_GREGS_SOFTE ((void *)&dmy_ctxt.uc_mcontext.gp_regs[SOFTE_IDX] - (void *)&dmy_ctxt)
     97 #define UC_MCONTEXT_GREGS_TRAP ((void *)&dmy_ctxt.uc_mcontext.gp_regs[TRAP_IDX] - (void *)&dmy_ctxt)
     98 #define UC_MCONTEXT_GREGS_DAR ((void *)&dmy_ctxt.uc_mcontext.gp_regs[DAR_IDX] - (void *)&dmy_ctxt)
     99 #define UC_MCONTEXT_GREGS_DSISR ((void *)&dmy_ctxt.uc_mcontext.gp_regs[DSISR_IDX] - (void *)&dmy_ctxt)
    100 #define UC_MCONTEXT_GREGS_RESULT ((void *)&dmy_ctxt.uc_mcontext.gp_regs[RESULT_IDX] - (void *)&dmy_ctxt)
    101 
    102 #define UC_MCONTEXT_FREGS_R0 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[0] - (void *)&dmy_ctxt)
    103 #define UC_MCONTEXT_FREGS_R1 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[1] - (void *)&dmy_ctxt)
    104 #define UC_MCONTEXT_FREGS_R2 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[2] - (void *)&dmy_ctxt)
    105 #define UC_MCONTEXT_FREGS_R3 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[3] - (void *)&dmy_ctxt)
    106 #define UC_MCONTEXT_FREGS_R4 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[4] - (void *)&dmy_ctxt)
    107 #define UC_MCONTEXT_FREGS_R5 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[5] - (void *)&dmy_ctxt)
    108 #define UC_MCONTEXT_FREGS_R6 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[6] - (void *)&dmy_ctxt)
    109 #define UC_MCONTEXT_FREGS_R7 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[7] - (void *)&dmy_ctxt)
    110 #define UC_MCONTEXT_FREGS_R8 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[8] - (void *)&dmy_ctxt)
    111 #define UC_MCONTEXT_FREGS_R9 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[9] - (void *)&dmy_ctxt)
    112 #define UC_MCONTEXT_FREGS_R10 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[10] - (void *)&dmy_ctxt)
    113 #define UC_MCONTEXT_FREGS_R11 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[11] - (void *)&dmy_ctxt)
    114 #define UC_MCONTEXT_FREGS_R12 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[12] - (void *)&dmy_ctxt)
    115 #define UC_MCONTEXT_FREGS_R13 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[13] - (void *)&dmy_ctxt)
    116 #define UC_MCONTEXT_FREGS_R14 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[14] - (void *)&dmy_ctxt)
    117 #define UC_MCONTEXT_FREGS_R15 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[15] - (void *)&dmy_ctxt)
    118 #define UC_MCONTEXT_FREGS_R16 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[16] - (void *)&dmy_ctxt)
    119 #define UC_MCONTEXT_FREGS_R17 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[17] - (void *)&dmy_ctxt)
    120 #define UC_MCONTEXT_FREGS_R18 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[18] - (void *)&dmy_ctxt)
    121 #define UC_MCONTEXT_FREGS_R19 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[19] - (void *)&dmy_ctxt)
    122 #define UC_MCONTEXT_FREGS_R20 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[20] - (void *)&dmy_ctxt)
    123 #define UC_MCONTEXT_FREGS_R21 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[21] - (void *)&dmy_ctxt)
    124 #define UC_MCONTEXT_FREGS_R22 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[22] - (void *)&dmy_ctxt)
    125 #define UC_MCONTEXT_FREGS_R23 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[23] - (void *)&dmy_ctxt)
    126 #define UC_MCONTEXT_FREGS_R24 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[24] - (void *)&dmy_ctxt)
    127 #define UC_MCONTEXT_FREGS_R25 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[25] - (void *)&dmy_ctxt)
    128 #define UC_MCONTEXT_FREGS_R26 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[26] - (void *)&dmy_ctxt)
    129 #define UC_MCONTEXT_FREGS_R27 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[27] - (void *)&dmy_ctxt)
    130 #define UC_MCONTEXT_FREGS_R28 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[28] - (void *)&dmy_ctxt)
    131 #define UC_MCONTEXT_FREGS_R29 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[29] - (void *)&dmy_ctxt)
    132 #define UC_MCONTEXT_FREGS_R30 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[30] - (void *)&dmy_ctxt)
    133 #define UC_MCONTEXT_FREGS_R31 ((void *)&dmy_ctxt.uc_mcontext.fp_regs[31] - (void *)&dmy_ctxt)
    134 #define UC_MCONTEXT_FREGS_FPSCR ((void *)&dmy_ctxt.uc_mcontext.fp_regs[32] - (void *)&dmy_ctxt)
    135 
    136 #define UC_MCONTEXT_V_REGS ((void *)&dmy_ctxt.uc_mcontext.v_regs - (void *)&dmy_ctxt)
    137 
    138 #define UC_MCONTEXT_VREGS_R0 ((void *)&dmy_vrregset.vrregs[0] - (void *)&dmy_vrregset)
    139 #define UC_MCONTEXT_VREGS_R1 ((void *)&dmy_vrregset.vrregs[1] - (void *)&dmy_vrregset)
    140 #define UC_MCONTEXT_VREGS_R2 ((void *)&dmy_vrregset.vrregs[2] - (void *)&dmy_vrregset)
    141 #define UC_MCONTEXT_VREGS_R3 ((void *)&dmy_vrregset.vrregs[3] - (void *)&dmy_vrregset)
    142 #define UC_MCONTEXT_VREGS_R4 ((void *)&dmy_vrregset.vrregs[4] - (void *)&dmy_vrregset)
    143 #define UC_MCONTEXT_VREGS_R5 ((void *)&dmy_vrregset.vrregs[5] - (void *)&dmy_vrregset)
    144 #define UC_MCONTEXT_VREGS_R6 ((void *)&dmy_vrregset.vrregs[6] - (void *)&dmy_vrregset)
    145 #define UC_MCONTEXT_VREGS_R7 ((void *)&dmy_vrregset.vrregs[7] - (void *)&dmy_vrregset)
    146 #define UC_MCONTEXT_VREGS_R8 ((void *)&dmy_vrregset.vrregs[8] - (void *)&dmy_vrregset)
    147 #define UC_MCONTEXT_VREGS_R9 ((void *)&dmy_vrregset.vrregs[9] - (void *)&dmy_vrregset)
    148 #define UC_MCONTEXT_VREGS_R10 ((void *)&dmy_vrregset.vrregs[10] - (void *)&dmy_vrregset)
    149 #define UC_MCONTEXT_VREGS_R11 ((void *)&dmy_vrregset.vrregs[11] - (void *)&dmy_vrregset)
    150 #define UC_MCONTEXT_VREGS_R12 ((void *)&dmy_vrregset.vrregs[12] - (void *)&dmy_vrregset)
    151 #define UC_MCONTEXT_VREGS_R13 ((void *)&dmy_vrregset.vrregs[13] - (void *)&dmy_vrregset)
    152 #define UC_MCONTEXT_VREGS_R14 ((void *)&dmy_vrregset.vrregs[14] - (void *)&dmy_vrregset)
    153 #define UC_MCONTEXT_VREGS_R15 ((void *)&dmy_vrregset.vrregs[15] - (void *)&dmy_vrregset)
    154 #define UC_MCONTEXT_VREGS_R16 ((void *)&dmy_vrregset.vrregs[16] - (void *)&dmy_vrregset)
    155 #define UC_MCONTEXT_VREGS_R17 ((void *)&dmy_vrregset.vrregs[17] - (void *)&dmy_vrregset)
    156 #define UC_MCONTEXT_VREGS_R18 ((void *)&dmy_vrregset.vrregs[18] - (void *)&dmy_vrregset)
    157 #define UC_MCONTEXT_VREGS_R19 ((void *)&dmy_vrregset.vrregs[19] - (void *)&dmy_vrregset)
    158 #define UC_MCONTEXT_VREGS_R20 ((void *)&dmy_vrregset.vrregs[20] - (void *)&dmy_vrregset)
    159 #define UC_MCONTEXT_VREGS_R21 ((void *)&dmy_vrregset.vrregs[21] - (void *)&dmy_vrregset)
    160 #define UC_MCONTEXT_VREGS_R22 ((void *)&dmy_vrregset.vrregs[22] - (void *)&dmy_vrregset)
    161 #define UC_MCONTEXT_VREGS_R23 ((void *)&dmy_vrregset.vrregs[23] - (void *)&dmy_vrregset)
    162 #define UC_MCONTEXT_VREGS_R24 ((void *)&dmy_vrregset.vrregs[24] - (void *)&dmy_vrregset)
    163 #define UC_MCONTEXT_VREGS_R25 ((void *)&dmy_vrregset.vrregs[25] - (void *)&dmy_vrregset)
    164 #define UC_MCONTEXT_VREGS_R26 ((void *)&dmy_vrregset.vrregs[26] - (void *)&dmy_vrregset)
    165 #define UC_MCONTEXT_VREGS_R27 ((void *)&dmy_vrregset.vrregs[27] - (void *)&dmy_vrregset)
    166 #define UC_MCONTEXT_VREGS_R28 ((void *)&dmy_vrregset.vrregs[28] - (void *)&dmy_vrregset)
    167 #define UC_MCONTEXT_VREGS_R29 ((void *)&dmy_vrregset.vrregs[29] - (void *)&dmy_vrregset)
    168 #define UC_MCONTEXT_VREGS_R30 ((void *)&dmy_vrregset.vrregs[30] - (void *)&dmy_vrregset)
    169 #define UC_MCONTEXT_VREGS_R31 ((void *)&dmy_vrregset.vrregs[31] - (void *)&dmy_vrregset)
    170 #define UC_MCONTEXT_VREGS_VSCR ((void *)&dmy_vrregset.vscr - (void *)&dmy_vrregset)
    171 #define UC_MCONTEXT_VREGS_VRSAVE ((void *)&dmy_vrregset.vrsave - (void *)&dmy_vrregset)
    172 
    173 #endif
    174