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    revision 983 by niro, Fri Apr 24 18:33:46 2009 UTC revision 984 by niro, Sun May 30 11:32:42 2010 UTC
    # Line 10  Line 10 
    10    
    11  #undef _GNU_SOURCE  #undef _GNU_SOURCE
    12  #define _GNU_SOURCE  #define _GNU_SOURCE
    13  #include <libbb.h>  #include "libbb.h"
     #include <sys/utsname.h> /* uname() */  
    14  #include "modutils.h"  #include "modutils.h"
    15    #include <sys/utsname.h> /* uname() */
    16    
    17  /*  /*
    18   * Theory of operation:   * Theory of operation:
    # Line 36  enum { Line 36  enum {
    36   ARG_b = (1<<2), /* base directory when modules are in staging area */   ARG_b = (1<<2), /* base directory when modules are in staging area */
    37   ARG_e = (1<<3), /* with -F, print unresolved symbols */   ARG_e = (1<<3), /* with -F, print unresolved symbols */
    38   ARG_F = (1<<4), /* System.map that contains the symbols */   ARG_F = (1<<4), /* System.map that contains the symbols */
    39   ARG_n = (1<<5)  /* dry-run, print to stdout only */   ARG_n = (1<<5), /* dry-run, print to stdout only */
    40     ARG_r = (1<<6)  /* Compat dummy. Linux Makefile uses it */
    41  };  };
    42    
    43  static int FAST_FUNC parse_module(const char *fname, struct stat *sb,  static int FAST_FUNC parse_module(const char *fname, struct stat *sb UNUSED_PARAM,
    44    void *data, int UNUSED_PARAM depth)    void *data, int depth UNUSED_PARAM)
    45  {  {
    46     char modname[MODULE_NAME_LEN];
    47   module_info **first = (module_info **) data;   module_info **first = (module_info **) data;
    48   char *image, *ptr;   char *image, *ptr;
    49   module_info *info;   module_info *info;
    50   size_t len = sb->st_size;   /* Arbitrary. Was sb->st_size, but that breaks .gz etc */
    51     size_t len = (64*1024*1024 - 4096);
    52    
    53   if (strrstr(fname, ".ko") == NULL)   if (strrstr(fname, ".ko") == NULL)
    54   return TRUE;   return TRUE;
    55    
    56   image = xmalloc_open_zipped_read_close(fname, &len);   image = xmalloc_open_zipped_read_close(fname, &len);
    57   info = xzalloc(sizeof(module_info));   info = xzalloc(sizeof(*info));
    58    
    59   info->next = *first;   info->next = *first;
    60   *first = info;   *first = info;
    61    
    62   info->dnext = info->dprev = info;   info->dnext = info->dprev = info;
    63   info->name = xasprintf("/%s", fname);   info->name = xasprintf("/%s", fname);
    64   info->modname = filename2modname(fname, NULL);   info->modname = xstrdup(filename2modname(fname, modname));
    65   for (ptr = image; ptr < image + len - 10; ptr++) {   for (ptr = image; ptr < image + len - 10; ptr++) {
    66   if (strncmp(ptr, "depends=", 8) == 0) {   if (strncmp(ptr, "depends=", 8) == 0) {
    67   char *u;   char *u;
    # Line 68  static int FAST_FUNC parse_module(const Line 71  static int FAST_FUNC parse_module(const
    71   if (*u == '-')   if (*u == '-')
    72   *u = '_';   *u = '_';
    73   ptr += string_to_llist(ptr, &info->dependencies, ",");   ptr += string_to_llist(ptr, &info->dependencies, ",");
    74   } else if (ENABLE_FEATURE_MODUTILS_ALIAS &&   } else if (ENABLE_FEATURE_MODUTILS_ALIAS
    75     strncmp(ptr, "alias=", 6) == 0) {   && strncmp(ptr, "alias=", 6) == 0
    76     ) {
    77   llist_add_to(&info->aliases, xstrdup(ptr + 6));   llist_add_to(&info->aliases, xstrdup(ptr + 6));
    78   ptr += strlen(ptr);   ptr += strlen(ptr);
    79   } else if (ENABLE_FEATURE_MODUTILS_SYMBOLS &&   } else if (ENABLE_FEATURE_MODUTILS_SYMBOLS
    80     strncmp(ptr, "__ksymtab_", 10) == 0) {   && strncmp(ptr, "__ksymtab_", 10) == 0
    81     ) {
    82   ptr += 10;   ptr += 10;
    83   if (strncmp(ptr, "gpl", 3) == 0 ||   if (strncmp(ptr, "gpl", 3) == 0 ||
    84      strcmp(ptr, "strings") == 0)      strcmp(ptr, "strings") == 0)
    # Line 138  int depmod_main(int argc UNUSED_PARAM, c Line 143  int depmod_main(int argc UNUSED_PARAM, c
    143   struct utsname uts;   struct utsname uts;
    144   int tmp;   int tmp;
    145    
    146   getopt32(argv, "aAb:eF:n", &moddir_base, NULL);   getopt32(argv, "aAb:eF:nr", &moddir_base, NULL);
    147   argv += optind;   argv += optind;
    148    
    149   /* goto modules location */   /* goto modules location */
    # Line 198  int depmod_main(int argc UNUSED_PARAM, c Line 203  int depmod_main(int argc UNUSED_PARAM, c
    203   if (!(option_mask32 & ARG_n))   if (!(option_mask32 & ARG_n))
    204   xfreopen_write("modules.alias", stdout);   xfreopen_write("modules.alias", stdout);
    205   for (m = modules; m != NULL; m = m->next) {   for (m = modules; m != NULL; m = m->next) {
    206     const char *fname = bb_basename(m->name);
    207     int fnlen = strchrnul(fname, '.') - fname;
    208   while (m->aliases) {   while (m->aliases) {
    209   printf("alias %s %s\n",   /* Last word can well be m->modname instead,
    210     * but depmod from module-init-tools 3.4
    211     * uses module basename, i.e., no s/-/_/g.
    212     * (pathname and .ko.* are still stripped)
    213     * Mimicking that... */
    214     printf("alias %s %.*s\n",
    215   (char*)llist_pop(&m->aliases),   (char*)llist_pop(&m->aliases),
    216   m->modname);   fnlen, fname);
    217   }   }
    218   }   }
    219  #endif  #endif
    # Line 209  int depmod_main(int argc UNUSED_PARAM, c Line 221  int depmod_main(int argc UNUSED_PARAM, c
    221   if (!(option_mask32 & ARG_n))   if (!(option_mask32 & ARG_n))
    222   xfreopen_write("modules.symbols", stdout);   xfreopen_write("modules.symbols", stdout);
    223   for (m = modules; m != NULL; m = m->next) {   for (m = modules; m != NULL; m = m->next) {
    224     const char *fname = bb_basename(m->name);
    225     int fnlen = strchrnul(fname, '.') - fname;
    226   while (m->symbols) {   while (m->symbols) {
    227   printf("alias symbol:%s %s\n",   printf("alias symbol:%s %.*s\n",
    228   (char*)llist_pop(&m->symbols),   (char*)llist_pop(&m->symbols),
    229   m->modname);   fnlen, fname);
    230   }   }
    231   }   }
    232  #endif  #endif
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