arch/ppc64/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 #define ELF_ARCH                EM_PPC
  17 #define ELF_CLASS               ELFCLASS32
  18 #define ELF_DATA                ELFDATA2MSB;
  19
  20 #include <asm/processor.h>
  21 #include <linux/module.h>
  22 #include <linux/config.h>
  23 #include <linux/elfcore.h>
  24 #include <linux/compat.h>
  25
  26 #define elf_prstatus elf_prstatus32
  27 struct elf_prstatus32
  28 {
  29         struct elf_siginfo pr_info;     /* Info associated with signal */
  30         short   pr_cursig;              /* Current signal */
  31         unsigned int pr_sigpend;        /* Set of pending signals */
  32         unsigned int pr_sighold;        /* Set of held signals */
  33         pid_t   pr_pid;
  34         pid_t   pr_ppid;
  35         pid_t   pr_pgrp;
  36         pid_t   pr_sid;
  37         struct compat_timeval pr_utime; /* User time */
  38         struct compat_timeval pr_stime; /* System time */
  39         struct compat_timeval pr_cutime;        /* Cumulative user time */
  40         struct compat_timeval pr_cstime;        /* Cumulative system time */
  41         elf_gregset_t pr_reg;           /* General purpose registers. */
  42         int pr_fpvalid;         /* True if math co-processor being used. */
  43 };
  44
  45 #define elf_prpsinfo elf_prpsinfo32
  46 struct elf_prpsinfo32
  47 {
  48         char    pr_state;       /* numeric process state */
  49         char    pr_sname;       /* char for pr_state */
  50         char    pr_zomb;        /* zombie */
  51         char    pr_nice;        /* nice val */
  52         unsigned int pr_flag;   /* flags */
  53         u32     pr_uid;
  54         u32     pr_gid;
  55         pid_t   pr_pid, pr_ppid, pr_pgrp, pr_sid;
  56         /* Lots missing */
  57         char    pr_fname[16];   /* filename of executable */
  58         char    pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
  59 };
  60
  61 #include <linux/time.h>
  62
  63 #undef cputime_to_timeval
  64 #define cputime_to_timeval cputime_to_compat_timeval
  65 static __inline__ void
  66 cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value)
  67 {
  68         unsigned long jiffies = cputime_to_jiffies(cputime);
  69         value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
  70         value->tv_sec = jiffies / HZ;
  71 }
  72
  73 extern void start_thread32(struct pt_regs *, unsigned long, unsigned long);
  74 #undef start_thread
  75 #define start_thread start_thread32
  76 #define init_elf_binfmt init_elf32_binfmt
  77
  78 #include "../../../fs/binfmt_elf.c"