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   1 #ifndef __ASMCRIS_ARCH_ELF_H
   2 #define __ASMCRIS_ARCH_ELF_H
   3
   4 /*
   5  * ELF register definitions..
   6  */
   7
   8 #include <asm/ptrace.h>
   9
  10 /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
  11    starts (a register; assume first param register for CRIS)
  12    contains a pointer to a function which might be
  13    registered using `atexit'.  This provides a mean for the
  14    dynamic linker to call DT_FINI functions for shared libraries
  15    that have been loaded before the code runs.
  16
  17    A value of 0 tells we have no such handler.  */
  18
  19 /* Explicitly set registers to 0 to increase determinism.  */
  20 #define ELF_PLAT_INIT(_r, load_addr)    do { \
  21         (_r)->r13 = 0; (_r)->r12 = 0; (_r)->r11 = 0; (_r)->r10 = 0; \
  22         (_r)->r9 = 0;  (_r)->r8 = 0;  (_r)->r7 = 0;  (_r)->r6 = 0;  \
  23         (_r)->r5 = 0;  (_r)->r4 = 0;  (_r)->r3 = 0;  (_r)->r2 = 0;  \
  24         (_r)->r1 = 0;  (_r)->r0 = 0;  (_r)->mof = 0; (_r)->srp = 0; \
  25 } while (0)
  26
  27 /* The additional layer below is because the stack pointer is missing in
  28    the pt_regs struct, but needed in a core dump. pr_reg is a elf_gregset_t,
  29    and should be filled in according to the layout of the user_regs_struct
  30    struct; regs is a pt_regs struct. We dump all registers, though several are
  31    obviously unnecessary. That way there's less need for intelligence at
  32    the receiving end (i.e. gdb). */
  33 #define ELF_CORE_COPY_REGS(pr_reg, regs)                   \
  34         pr_reg[0] = regs->r0;                              \
  35         pr_reg[1] = regs->r1;                              \
  36         pr_reg[2] = regs->r2;                              \
  37         pr_reg[3] = regs->r3;                              \
  38         pr_reg[4] = regs->r4;                              \
  39         pr_reg[5] = regs->r5;                              \
  40         pr_reg[6] = regs->r6;                              \
  41         pr_reg[7] = regs->r7;                              \
  42         pr_reg[8] = regs->r8;                              \
  43         pr_reg[9] = regs->r9;                              \
  44         pr_reg[10] = regs->r10;                            \
  45         pr_reg[11] = regs->r11;                            \
  46         pr_reg[12] = regs->r12;                            \
  47         pr_reg[13] = regs->r13;                            \
  48         pr_reg[14] = rdusp();               /* sp */       \
  49         pr_reg[15] = regs->irp;             /* pc */       \
  50         pr_reg[16] = 0;                     /* p0 */       \
  51         pr_reg[17] = rdvr();                /* vr */       \
  52         pr_reg[18] = 0;                     /* p2 */       \
  53         pr_reg[19] = 0;                     /* p3 */       \
  54         pr_reg[20] = 0;                     /* p4 */       \
  55         pr_reg[21] = (regs->dccr & 0xffff); /* ccr */      \
  56         pr_reg[22] = 0;                     /* p6 */       \
  57         pr_reg[23] = regs->mof;             /* mof */      \
  58         pr_reg[24] = 0;                     /* p8 */       \
  59         pr_reg[25] = 0;                     /* ibr */      \
  60         pr_reg[26] = 0;                     /* irp */      \
  61         pr_reg[27] = regs->srp;             /* srp */      \
  62         pr_reg[28] = 0;                     /* bar */      \
  63         pr_reg[29] = regs->dccr;            /* dccr */     \
  64         pr_reg[30] = 0;                     /* brp */      \
  65         pr_reg[31] = rdusp();               /* usp */      \
  66         pr_reg[32] = 0;                     /* csrinstr */ \
  67         pr_reg[33] = 0;                     /* csraddr */  \
  68         pr_reg[34] = 0;                     /* csrdata */
  69
  70
  71 #endif