home *** CD-ROM | disk | FTP | other *** search
/ PC Welt 2006 November (DVD) / PCWELT_11_2006.ISO / casper / filesystem.squashfs / usr / src / linux-headers-2.6.17-6 / include / asm-cris / arch-v10 / elf.h < prev    next >
Encoding:
C/C++ Source or Header  |  2006-08-11  |  3.5 KB  |  82 lines
  1. #ifndef __ASMCRIS_ARCH_ELF_H
  2. #define __ASMCRIS_ARCH_ELF_H
  3.  
  4. #define ELF_MACH EF_CRIS_VARIANT_ANY_V0_V10
  5.  
  6. /*
  7.  * This is used to ensure we don't load something for the wrong architecture.
  8.  */
  9. #define elf_check_arch(x)            \
  10.  ((x)->e_machine == EM_CRIS            \
  11.   && ((((x)->e_flags & EF_CRIS_VARIANT_MASK) == EF_CRIS_VARIANT_ANY_V0_V10    \
  12.       || (((x)->e_flags & EF_CRIS_VARIANT_MASK) == EF_CRIS_VARIANT_COMMON_V10_V32))))
  13.  
  14. /*
  15.  * ELF register definitions..
  16.  */
  17.  
  18. #include <asm/ptrace.h>
  19.  
  20. /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
  21.    starts (a register; assume first param register for CRIS)
  22.    contains a pointer to a function which might be
  23.    registered using `atexit'.  This provides a mean for the
  24.    dynamic linker to call DT_FINI functions for shared libraries
  25.    that have been loaded before the code runs.
  26.  
  27.    A value of 0 tells we have no such handler.  */
  28.  
  29. /* Explicitly set registers to 0 to increase determinism.  */
  30. #define ELF_PLAT_INIT(_r, load_addr)    do { \
  31.     (_r)->r13 = 0; (_r)->r12 = 0; (_r)->r11 = 0; (_r)->r10 = 0; \
  32.     (_r)->r9 = 0;  (_r)->r8 = 0;  (_r)->r7 = 0;  (_r)->r6 = 0;  \
  33.     (_r)->r5 = 0;  (_r)->r4 = 0;  (_r)->r3 = 0;  (_r)->r2 = 0;  \
  34.     (_r)->r1 = 0;  (_r)->r0 = 0;  (_r)->mof = 0; (_r)->srp = 0; \
  35. } while (0)
  36.  
  37. /* The additional layer below is because the stack pointer is missing in 
  38.    the pt_regs struct, but needed in a core dump. pr_reg is a elf_gregset_t,
  39.    and should be filled in according to the layout of the user_regs_struct
  40.    struct; regs is a pt_regs struct. We dump all registers, though several are
  41.    obviously unnecessary. That way there's less need for intelligence at 
  42.    the receiving end (i.e. gdb). */
  43. #define ELF_CORE_COPY_REGS(pr_reg, regs)                   \
  44.     pr_reg[0] = regs->r0;                              \
  45.     pr_reg[1] = regs->r1;                              \
  46.     pr_reg[2] = regs->r2;                              \
  47.     pr_reg[3] = regs->r3;                              \
  48.     pr_reg[4] = regs->r4;                              \
  49.     pr_reg[5] = regs->r5;                              \
  50.     pr_reg[6] = regs->r6;                              \
  51.     pr_reg[7] = regs->r7;                              \
  52.     pr_reg[8] = regs->r8;                              \
  53.     pr_reg[9] = regs->r9;                              \
  54.     pr_reg[10] = regs->r10;                            \
  55.     pr_reg[11] = regs->r11;                            \
  56.     pr_reg[12] = regs->r12;                            \
  57.     pr_reg[13] = regs->r13;                            \
  58.     pr_reg[14] = rdusp();               /* sp */       \
  59.     pr_reg[15] = regs->irp;             /* pc */       \
  60.     pr_reg[16] = 0;                     /* p0 */       \
  61.     pr_reg[17] = rdvr();                /* vr */       \
  62.     pr_reg[18] = 0;                     /* p2 */       \
  63.     pr_reg[19] = 0;                     /* p3 */       \
  64.     pr_reg[20] = 0;                     /* p4 */       \
  65.     pr_reg[21] = (regs->dccr & 0xffff); /* ccr */      \
  66.     pr_reg[22] = 0;                     /* p6 */       \
  67.     pr_reg[23] = regs->mof;             /* mof */      \
  68.     pr_reg[24] = 0;                     /* p8 */       \
  69.     pr_reg[25] = 0;                     /* ibr */      \
  70.     pr_reg[26] = 0;                     /* irp */      \
  71.     pr_reg[27] = regs->srp;             /* srp */      \
  72.     pr_reg[28] = 0;                     /* bar */      \
  73.     pr_reg[29] = regs->dccr;            /* dccr */     \
  74.     pr_reg[30] = 0;                     /* brp */      \
  75.     pr_reg[31] = rdusp();               /* usp */      \
  76.     pr_reg[32] = 0;                     /* csrinstr */ \
  77.     pr_reg[33] = 0;                     /* csraddr */  \
  78.     pr_reg[34] = 0;                     /* csrdata */
  79.  
  80.  
  81. #endif
  82.