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 #ifdef FEDORA
  25   "x86_64",     "x86_64:athlon:i686:i586:i486:i386",
  26 #else
  27   "x86_64",     "x86_64:i686:i586:i486:i386",
  28 #endif
  29   "i686",       "i686:i586:i486:i386",
  30   "i586",       "i586:i486:i386",
  31   "i486",       "i486:i386",
  32   "i386",       "i386",
  33   "s390x",      "s390x:s390",
  34   "s390",       "s390",
  35   "ppc64le",    "ppc64le",
  36   "ppc64",      "ppc64:ppc",
  37   "ppc",        "ppc",
  38   "ppc64p7",    "ppc64p7:ppc64:ppc",
  39   "ia64",       "ia64:i686:i586:i486:i386",
  40   "aarch64",    "aarch64",
  41   "armv6hl",    "armv6hl",
  42   "armv7hnl",   "armv7hnl:armv7hl:armv6hl",
  43   "armv7hl",    "armv7hl:armv6hl",
  44   "armv7l",     "armv7l:armv6l:armv5tejl:armv5tel:armv5l:armv4tl:armv4l:armv3l",
  45   "armv6l",     "armv6l:armv5tejl:armv5tel:armv5l:armv4tl:armv4l:armv3l",
  46   "armv5tejl",  "armv5tejl:armv5tel:armv5l:armv4tl:armv4l:armv3l",
  47   "armv5tel",   "armv5tel:armv5l:armv4tl:armv4l:armv3l",
  48   "armv5tl",    "armv5l:armv4tl:armv4l:armv3l",
  49   "armv5l",     "armv5l:armv4tl:armv4l:armv3l",
  50   "armv4tl",    "armv4tl:armv4l:armv3l",
  51   "armv4l",     "armv4l:armv3l",
  52   "armv3l",     "armv3l",
  53   "sh3",        "sh3",
  54   "sh4",        "sh4",
  55   "sh4a",       "sh4a:sh4",
  56   "sparc64v",   "sparc64v:sparc64:sparcv9v:sparcv9:sparcv8:sparc",
  57   "sparc64",    "sparc64:sparcv9:sparcv8:sparc",
  58   "sparcv9v",   "sparcv9v:sparcv9:sparcv8:sparc",
  59   "sparcv9",    "sparcv9:sparcv8:sparc",
  60   "sparcv8",    "sparcv8:sparc",
  61   "sparc",      "sparc",
  62   "mipsel",     "mipsel",
  63   "m68k",       "m68k",
  64 #ifdef FEDORA
  65   "ia32e",      "ia32e:x86_64:athlon:i686:i586:i486:i386",
  66   "athlon",     "athlon:i686:i586:i486:i386",
  67   "amd64",      "amd64:x86_64:athlon:i686:i586:i486:i386",
  68   "geode",      "geode:i586:i486:i386",
  69   "ppc64iseries", "ppc64iseries:ppc64:ppc",
  70   "ppc64pseries", "ppc64pseries:ppc64:ppc",
  71 #endif
  72   0
  73 };
  74
  75 void
  76 pool_setarch(Pool *pool, const char *arch)
  77 {
  78   if (arch)
  79     {
  80       int i;
  81
  82       /* convert arch to known policy */
  83       for (i = 0; archpolicies[i]; i += 2)
  84         if (!strcmp(archpolicies[i], arch))
  85           break;
  86       if (archpolicies[i])
  87         arch = archpolicies[i + 1];
  88       else
  89         arch = "";
  90     }
  91   pool_setarchpolicy(pool, arch);
  92 }
  93
  94 /*
  95  * we support three relations:
  96  *
  97  * a = b   both architectures a and b are treated as equivalent
  98  * a > b   a is considered a "better" architecture, the solver
  99  *         should change from a to b, but must not change from b to a
 100  * a : b   a is considered a "better" architecture, the solver
 101  *         must not change the architecture from a to b or b to a
 102  */
 103 void
 104 pool_setarchpolicy(Pool *pool, const char *arch)
 105 {
 106   unsigned int score = 0x10001;
 107   size_t l;
 108   char d;
 109   Id *id2arch;
 110   Id id, lastarch;
 111
 112   pool->id2arch = solv_free(pool->id2arch);
 113   pool->id2color = solv_free(pool->id2color);
 114   if (!arch)
 115     {
 116       pool->lastarch = 0;
 117       return;
 118     }
 119   id = pool->noarchid;
 120   lastarch = id + 255;
 121   id2arch = solv_calloc(lastarch + 1, sizeof(Id));
 122   id2arch[id] = 1;      /* the "noarch" class */
 123
 124   d = 0;
 125   while (*arch)
 126     {
 127       l = strcspn(arch, ":=>");
 128       if (l)
 129         {
 130           id = pool_strn2id(pool, arch, l, 1);
 131           if (id > lastarch)
 132             {
 133               id2arch = solv_realloc2(id2arch, (id + 255 + 1), sizeof(Id));
 134               memset(id2arch + lastarch + 1, 0, (id + 255 - lastarch) * sizeof(Id));
 135               lastarch = id + 255;
 136             }
 137           if (id2arch[id] == 0)
 138             {
 139               if (d == ':')
 140                 score += 0x10000;
 141               else if (d == '>')
 142                 score += 0x00001;
 143               id2arch[id] = score;
 144             }
 145         }
 146       arch += l;
 147       if ((d = *arch++) == 0)
 148         break;
 149     }
 150   pool->id2arch = id2arch;
 151   pool->lastarch = lastarch;
 152 }
 153
 154 unsigned char
 155 pool_arch2color_slow(Pool *pool, Id arch)
 156 {
 157   const char *s;
 158   unsigned char color;
 159
 160   if (arch > pool->lastarch)
 161     return ARCHCOLOR_ALL;
 162   if (!pool->id2color)
 163     pool->id2color = solv_calloc(pool->lastarch + 1, 1);
 164   s = pool_id2str(pool, arch);
 165   if (arch == ARCH_NOARCH || arch == ARCH_ALL || arch == ARCH_ANY)
 166     color = ARCHCOLOR_ALL;
 167   else if (!strcmp(s, "s390x") || strstr(s, "64"))
 168     color = ARCHCOLOR_64;
 169   else
 170     color = ARCHCOLOR_32;
 171   pool->id2color[arch] = color;
 172   return color;
 173 }
 174