arch/powerpc/kernel/binfmt_elf32.c

   1 /*
   2  * binfmt_elf32.c: Support 32-bit PPC ELF binaries on Power3 and followons.
   3  * based on the SPARC64 version.
   4  * Copyright (C) 1995, 1996, 1997, 1998 David S. Miller (davem@redhat.com)
   5  * Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek   (jj@ultra.linux.cz)
   6  *
   7  * Copyright (C) 2000,2001 Ken Aaker (kdaaker@rchland.vnet.ibm.com), IBM Corp
   8  * Copyright (C) 2001 Anton Blanchard (anton@au.ibm.com), IBM
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version
  13  * 2 of the License, or (at your option) any later version.
  14  */
  15
  16 #include <asm/processor.h>
  17 #include <linux/module.h>
  18 #include <linux/compat.h>
  19 #include <linux/elfcore-compat.h>
  20
  21 #undef  ELF_ARCH
  22 #undef  ELF_CLASS
  23 #define ELF_CLASS       ELFCLASS32
  24 #define ELF_ARCH        EM_PPC
  25
  26 #undef  elfhdr
  27 #undef  elf_phdr
  28 #undef  elf_note
  29 #undef  elf_addr_t
  30 #define elfhdr          elf32_hdr
  31 #define elf_phdr        elf32_phdr
  32 #define elf_note        elf32_note
  33 #define elf_addr_t      Elf32_Off
  34
  35 #define elf_prstatus    compat_elf_prstatus
  36 #define elf_prpsinfo    compat_elf_prpsinfo
  37
  38 #define elf_core_copy_regs compat_elf_core_copy_regs
  39 static inline void compat_elf_core_copy_regs(compat_elf_gregset_t *elf_regs,
  40                                              struct pt_regs *regs)
  41 {
  42         PPC_ELF_CORE_COPY_REGS((*elf_regs), regs);
  43 }
  44
  45 #define elf_core_copy_task_regs compat_elf_core_copy_task_regs
  46 static int compat_elf_core_copy_task_regs(struct task_struct *tsk,
  47                                           compat_elf_gregset_t *elf_regs)
  48 {
  49         struct pt_regs *regs = tsk->thread.regs;
  50         if (regs)
  51                 compat_elf_core_copy_regs(elf_regs, regs);
  52         return 1;
  53 }
  54
  55 #include <linux/time.h>
  56
  57 #undef cputime_to_timeval
  58 #define cputime_to_timeval cputime_to_compat_timeval
  59 static __inline__ void
  60 cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value)
  61 {
  62         unsigned long jiffies = cputime_to_jiffies(cputime);
  63         value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
  64         value->tv_sec = jiffies / HZ;
  65 }
  66
  67 #define init_elf_binfmt init_elf32_binfmt
  68
  69 #include "../../../fs/binfmt_elf.c"