src/poolarch.c

   1 /*
   2  * Copyright (c) 2007, Novell Inc.
   3  *
   4  * This program is licensed under the BSD license, read LICENSE.BSD
   5  * for further information
   6  */
   7
   8 /*
   9  * poolarch.c
  10  *
  11  * create architecture policies
  12  */
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17
  18 #include "pool.h"
  19 #include "poolid.h"
  20 #include "poolarch.h"
  21 #include "util.h"
  22
  23 static const char *archpolicies[] = {
  24   "ia32e",      "ia32e:x86_64:athlon:i686:i586:i486:i386",
  25   "amd64",      "amd64:x86_64:athlon:i686:i586:i486:i386",
  26   "x86_64",     "x86_64:athlon:i686:i586:i486:i386",
  27   "athlon",     "athlon:i686:i586:i486:i386",
  28   "i686",       "i686:i586:i486:i386",
  29   "geode",      "geode:i586:i486:i386",
  30   "i586",       "i586:i486:i386",
  31   "i486",       "i486:i386",
  32   "i386",       "i386",
  33   "s390x",      "s390x:s390",
  34   "s390",       "s390",
  35   "ia64",       "ia64:i686:i586:i486:i386",
  36   "ppc64iseries", "ppc64iseries:ppc64:ppc",
  37   "ppc64pseries", "ppc64pseries:ppc64:ppc",
  38   "ppc64",      "ppc64:ppc",
  39   "ppc",        "ppc",
  40   "ppc64p7",    "ppc64p7:ppc64:ppc",
  41   "ppc64le",    "ppc64le",
  42   "aarch64",    "aarch64",
  43   "armv6hl",    "armv6hl",
  44   "armv7hnl",   "armv7hnl:armv7hl:armv6hl",
  45   "armv7hl",    "armv7hl:armv6hl",
  46   "armv7l",     "armv7l:armv6l:armv5tejl:armv5tel:armv5l:armv4tl:armv4l:armv3l",
  47   "armv6l",     "armv6l:armv5tejl:armv5tel:armv5l:armv4tl:armv4l:armv3l",
  48   "armv5tejl",  "armv5tejl:armv5tel:armv5l:armv4tl:armv4l:armv3l",
  49   "armv5tel",   "armv5tel:armv5l:armv4tl:armv4l:armv3l",
  50   "armv5tl",    "armv5l:armv4tl:armv4l:armv3l",
  51   "armv5l",     "armv5l:armv4tl:armv4l:armv3l",
  52   "armv4tl",    "armv4tl:armv4l:armv3l",
  53   "armv4l",     "armv4l:armv3l",
  54   "armv3l",     "armv3l",
  55   "sh3",        "sh3",
  56   "sh4",        "sh4",
  57   "sh4a",       "sh4a:sh4",
  58   "sparc64v",   "sparc64v:sparc64:sparcv9v:sparcv9:sparcv8:sparc",
  59   "sparc64",    "sparc64:sparcv9:sparcv8:sparc",
  60   "sparcv9v",   "sparcv9v:sparcv9:sparcv8:sparc",
  61   "sparcv9",    "sparcv9:sparcv8:sparc",
  62   "sparcv8",    "sparcv8:sparc",
  63   "sparc",      "sparc",
  64   "mipsel",     "mipsel",
  65   "m68k",       "m68k",
  66   0
  67 };
  68
  69 void
  70 pool_setarch(Pool *pool, const char *arch)
  71 {
  72   if (arch)
  73     {
  74       int i;
  75
  76       /* convert arch to known policy */
  77       for (i = 0; archpolicies[i]; i += 2)
  78         if (!strcmp(archpolicies[i], arch))
  79           break;
  80       if (archpolicies[i])
  81         arch = archpolicies[i + 1];
  82       else
  83         arch = "";
  84     }
  85   pool_setarchpolicy(pool, arch);
  86 }
  87
  88 /*
  89  * we support three relations:
  90  *
  91  * a = b   both architectures a and b are treated as equivalent
  92  * a > b   a is considered a "better" architecture, the solver
  93  *         should change from a to b, but must not change from b to a
  94  * a : b   a is considered a "better" architecture, the solver
  95  *         must not change the architecture from a to b or b to a
  96  */
  97 void
  98 pool_setarchpolicy(Pool *pool, const char *arch)
  99 {
 100   unsigned int score = 0x10001;
 101   size_t l;
 102   char d;
 103   Id *id2arch;
 104   Id id, lastarch;
 105
 106   pool->id2arch = solv_free(pool->id2arch);
 107   pool->id2color = solv_free(pool->id2color);
 108   if (!arch)
 109     {
 110       pool->lastarch = 0;
 111       return;
 112     }
 113   id = pool->noarchid;
 114   lastarch = id + 255;
 115   id2arch = solv_calloc(lastarch + 1, sizeof(Id));
 116   id2arch[id] = 1;      /* the "noarch" class */
 117
 118   d = 0;
 119   while (*arch)
 120     {
 121       l = strcspn(arch, ":=>");
 122       if (l)
 123         {
 124           id = pool_strn2id(pool, arch, l, 1);
 125           if (id > lastarch)
 126             {
 127               id2arch = solv_realloc2(id2arch, (id + 255 + 1), sizeof(Id));
 128               memset(id2arch + lastarch + 1, 0, (id + 255 - lastarch) * sizeof(Id));
 129               lastarch = id + 255;
 130             }
 131           if (id2arch[id] == 0)
 132             {
 133               if (d == ':')
 134                 score += 0x10000;
 135               else if (d == '>')
 136                 score += 0x00001;
 137               id2arch[id] = score;
 138             }
 139         }
 140       arch += l;
 141       if ((d = *arch++) == 0)
 142         break;
 143     }
 144   pool->id2arch = id2arch;
 145   pool->lastarch = lastarch;
 146 }
 147
 148 unsigned char
 149 pool_arch2color_slow(Pool *pool, Id arch)
 150 {
 151   const char *s;
 152   unsigned char color;
 153
 154   if (arch > pool->lastarch)
 155     return ARCHCOLOR_ALL;
 156   if (!pool->id2color)
 157     pool->id2color = solv_calloc(pool->lastarch + 1, 1);
 158   s = pool_id2str(pool, arch);
 159   if (arch == ARCH_NOARCH || arch == ARCH_ALL || arch == ARCH_ANY)
 160     color = ARCHCOLOR_ALL;
 161   else if (!strcmp(s, "s390x") || strstr(s, "64"))
 162     color = ARCHCOLOR_64;
 163   else
 164     color = ARCHCOLOR_32;
 165   pool->id2color[arch] = color;
 166   return color;
 167 }
 168