libgloss/visium/io-gdb.c

   1 /*
   2  * hosted io support for GDB's remote fileio protocol
   3  *
   4  * Copyright (c) 2006 CodeSourcery Inc
   5  *
   6  * The authors hereby grant permission to use, copy, modify, distribute,
   7  * and license this software and its documentation for any purpose, provided
   8  * that existing copyright notices are retained in all copies and that this
   9  * notice is included verbatim in any distributions. No written agreement,
  10  * license, or royalty fee is required for any of the authorized uses.
  11  * Modifications to this software may be copyrighted by their authors
  12  * and need not follow the licensing terms described here, provided that
  13  * the new terms are clearly indicated on the first page of each file where
  14  * they apply.
  15  */
  16
  17 #include "io.h"
  18 #include <fcntl.h>
  19 #include <unistd.h>
  20 #include <errno.h>
  21
  22 gdb_mode_t
  23 __hosted_to_gdb_mode_t (mode_t m)
  24 {
  25   gdb_mode_t result = 0;
  26   if (m & S_IFREG)
  27     result |= GDB_S_IFREG;
  28   if (m & S_IFDIR)
  29     result |= GDB_S_IFDIR;
  30   if (m & S_IRUSR)
  31     result |= GDB_S_IRUSR;
  32   if (m & S_IWUSR)
  33     result |= GDB_S_IWUSR;
  34   if (m & S_IXUSR)
  35     result |= GDB_S_IXUSR;
  36   if (m & S_IRGRP)
  37     result |= GDB_S_IRGRP;
  38   if (m & S_IWGRP)
  39     result |= GDB_S_IWGRP;
  40   if (m & S_IXGRP)
  41     result |= GDB_S_IXGRP;
  42   if (m & S_IROTH)
  43     result |= GDB_S_IROTH;
  44   if (m & S_IWOTH)
  45     result |= GDB_S_IWOTH;
  46   if (m & S_IXOTH)
  47     result |= GDB_S_IXOTH;
  48   return result;
  49 }
  50
  51 int32_t
  52 __hosted_to_gdb_open_flags (int f)
  53 {
  54   int32_t result = 0;
  55   if (f & O_RDONLY)
  56     result |= GDB_O_RDONLY;
  57   if (f & O_WRONLY)
  58     result |= GDB_O_WRONLY;
  59   if (f & O_RDWR)
  60     result |= GDB_O_RDWR;
  61   if (f & O_APPEND)
  62     result |= GDB_O_APPEND;
  63   if (f & O_CREAT)
  64     result |= GDB_O_CREAT;
  65   if (f & O_TRUNC)
  66     result |= GDB_O_TRUNC;
  67   if (f & O_EXCL)
  68     result |= GDB_O_EXCL;
  69   return result;
  70 }
  71
  72 int32_t
  73 __hosted_to_gdb_lseek_flags (int f)
  74 {
  75   if (f == SEEK_CUR)
  76     return GDB_SEEK_CUR;
  77   else if (f == SEEK_END)
  78     return GDB_SEEK_END;
  79   else
  80     return GDB_SEEK_SET;
  81 }
  82
  83 void
  84 __hosted_from_gdb_stat (const struct gdb_stat *gs,
  85                         struct stat *s)
  86 {
  87   s->st_dev = gs->st_dev;
  88   s->st_ino = gs->st_ino;
  89   s->st_mode = gs->st_mode;
  90   s->st_nlink = gs->st_nlink;
  91   s->st_uid = gs->st_uid;
  92   s->st_gid = gs->st_gid;
  93   s->st_rdev = gs->st_rdev;
  94   s->st_size = gs->st_size;
  95   s->st_blksize = gs->st_blksize;
  96   s->st_blocks = gs->st_blocks;
  97   s->st_atime = gs->st_atim;
  98   s->st_mtime = gs->st_mtim;
  99   s->st_ctime = gs->st_ctim;
 100 }
 101
 102 void
 103 __hosted_from_gdb_timeval (const struct gdb_timeval *gt,
 104                            struct timeval *t)
 105 {
 106   t->tv_sec = gt->tv_sec;
 107   t->tv_usec = gt->tv_usec;
 108 }
 109
 110 int
 111 __hosted_from_gdb_errno (int32_t err)
 112 {
 113   switch (err)
 114     {
 115     case 0:             return 0;
 116     case GDB_EPERM:     return EPERM;
 117     case GDB_ENOENT:    return ENOENT;
 118     case GDB_EINTR:     return EINTR;
 119     case GDB_EBADF:     return EBADF;
 120     case GDB_EACCES:    return EACCES;
 121     case GDB_EFAULT:    return EFAULT;
 122     case GDB_EBUSY:     return EBUSY;
 123     case GDB_EEXIST:    return EEXIST;
 124     case GDB_ENODEV:    return ENODEV;
 125     case GDB_ENOTDIR:   return ENOTDIR;
 126     case GDB_EISDIR:    return EISDIR;
 127     case GDB_EINVAL:    return EINVAL;
 128     case GDB_ENFILE:    return ENFILE;
 129     case GDB_EMFILE:    return EMFILE;
 130     case GDB_EFBIG:     return EFBIG;
 131     case GDB_ENOSPC:    return ENOSPC;
 132     case GDB_ESPIPE:    return ESPIPE;
 133     case GDB_EROFS:     return EROFS;
 134     case GDB_ENAMETOOLONG:      return ENAMETOOLONG;
 135     case GDB_EUNKNOWN:
 136     default:
 137       return EIO;
 138     }
 139 }
 140