mono/mini/helpers.c

   1 /*
   2  * helpers.c: Assorted routines
   3  *
   4  * (C) 2003 Ximian, Inc.
   5  */
   6 #include "mini.h"
   7 #include <ctype.h>
   8 #include <mono/metadata/opcodes.h>
   9
  10 #ifndef HOST_WIN32
  11 #include <unistd.h>
  12 #endif
  13
  14 #ifndef DISABLE_LOGGING
  15
  16 #ifdef MINI_OP
  17 #undef MINI_OP
  18 #endif
  19 #ifdef MINI_OP3
  20 #undef MINI_OP3
  21 #endif
  22
  23 #ifdef HAVE_ARRAY_ELEM_INIT
  24 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
  25 #define MSGSTRFIELD1(line) str##line
  26 static const struct msgstr_t {
  27 #define MINI_OP(a,b,dest,src1,src2) char MSGSTRFIELD(__LINE__) [sizeof (b)];
  28 #define MINI_OP3(a,b,dest,src1,src2,src3) char MSGSTRFIELD(__LINE__) [sizeof (b)];
  29 #include "mini-ops.h"
  30 #undef MINI_OP
  31 #undef MINI_OP3
  32 } opstr = {
  33 #define MINI_OP(a,b,dest,src1,src2) b,
  34 #define MINI_OP3(a,b,dest,src1,src2,src3) b,
  35 #include "mini-ops.h"
  36 #undef MINI_OP
  37 #undef MINI_OP3
  38 };
  39 static const gint16 opidx [] = {
  40 #define MINI_OP(a,b,dest,src1,src2) [a - OP_LOAD] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
  41 #define MINI_OP3(a,b,dest,src1,src2,src3) [a - OP_LOAD] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
  42 #include "mini-ops.h"
  43 #undef MINI_OP
  44 #undef MINI_OP3
  45 };
  46
  47 #else
  48
  49 #define MINI_OP(a,b,dest,src1,src2) b,
  50 #define MINI_OP3(a,b,dest,src1,src2,src3) b,
  51 /* keep in sync with the enum in mini.h */
  52 static const char* const
  53 opnames[] = {
  54 #include "mini-ops.h"
  55 };
  56 #undef MINI_OP
  57 #undef MINI_OP3
  58
  59 #endif
  60
  61 #endif /* DISABLE_LOGGING */
  62
  63 #if defined(__i386__) || defined(__x86_64__)
  64 #define emit_debug_info  TRUE
  65 #else
  66 #define emit_debug_info  FALSE
  67 #endif
  68
  69 /*This enables us to use the right tooling when building the cross compiler for iOS.*/
  70 #if defined (__APPLE__) && defined (TARGET_ARM) && (defined(__i386__) || defined(__x86_64__))
  71
  72 #define ARCH_PREFIX "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/"
  73
  74 #endif
  75
  76 #define ARCH_PREFIX ""
  77 //#define ARCH_PREFIX "powerpc64-linux-gnu-"
  78
  79 const char*
  80 mono_inst_name (int op) {
  81 #ifndef DISABLE_LOGGING
  82         if (op >= OP_LOAD && op <= OP_LAST)
  83 #ifdef HAVE_ARRAY_ELEM_INIT
  84                 return (const char*)&opstr + opidx [op - OP_LOAD];
  85 #else
  86                 return opnames [op - OP_LOAD];
  87 #endif
  88         if (op < OP_LOAD)
  89                 return mono_opcode_name (op);
  90         g_error ("unknown opcode name for %d", op);
  91         return NULL;
  92 #else
  93         g_assert_not_reached ();
  94 #endif
  95 }
  96
  97 void
  98 mono_blockset_print (MonoCompile *cfg, MonoBitSet *set, const char *name, guint idom)
  99 {
 100 #ifndef DISABLE_LOGGING
 101         int i;
 102
 103         if (name)
 104                 g_print ("%s:", name);
 105
 106         mono_bitset_foreach_bit (set, i, cfg->num_bblocks) {
 107                 if (idom == i)
 108                         g_print (" [BB%d]", cfg->bblocks [i]->block_num);
 109                 else
 110                         g_print (" BB%d", cfg->bblocks [i]->block_num);
 111
 112         }
 113         g_print ("\n");
 114 #endif
 115 }
 116
 117 /**
 118  * mono_disassemble_code:
 119  * @cfg: compilation context
 120  * @code: a pointer to the code
 121  * @size: the code size in bytes
 122  *
 123  * Disassemble to code to stdout.
 124  */
 125 void
 126 mono_disassemble_code (MonoCompile *cfg, guint8 *code, int size, char *id)
 127 {
 128 #ifndef DISABLE_LOGGING
 129         GHashTable *offset_to_bb_hash = NULL;
 130         int i, cindex, bb_num;
 131         FILE *ofd;
 132 #ifdef HOST_WIN32
 133         const char *tmp = g_get_tmp_dir ();
 134 #endif
 135         const char *objdump_args = g_getenv ("MONO_OBJDUMP_ARGS");
 136         char *as_file;
 137         char *o_file;
 138         char *cmd;
 139         int unused;
 140
 141 #ifdef HOST_WIN32
 142         as_file = g_strdup_printf ("%s/test.s", tmp);
 143
 144         if (!(ofd = fopen (as_file, "w")))
 145                 g_assert_not_reached ();
 146 #else
 147         i = g_file_open_tmp (NULL, &as_file, NULL);
 148         ofd = fdopen (i, "w");
 149         g_assert (ofd);
 150 #endif
 151
 152         for (i = 0; id [i]; ++i) {
 153                 if (i == 0 && isdigit (id [i]))
 154                         fprintf (ofd, "_");
 155                 else if (!isalnum (id [i]))
 156                         fprintf (ofd, "_");
 157                 else
 158                         fprintf (ofd, "%c", id [i]);
 159         }
 160         fprintf (ofd, ":\n");
 161
 162         if (emit_debug_info && cfg != NULL) {
 163                 MonoBasicBlock *bb;
 164
 165                 fprintf (ofd, ".stabs   \"\",100,0,0,.Ltext0\n");
 166                 fprintf (ofd, ".stabs   \"<BB>\",100,0,0,.Ltext0\n");
 167                 fprintf (ofd, ".Ltext0:\n");
 168
 169                 offset_to_bb_hash = g_hash_table_new (NULL, NULL);
 170                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
 171                         g_hash_table_insert (offset_to_bb_hash, GINT_TO_POINTER (bb->native_offset), GINT_TO_POINTER (bb->block_num + 1));
 172                 }
 173         }
 174
 175         cindex = 0;
 176         for (i = 0; i < size; ++i) {
 177                 if (emit_debug_info && cfg != NULL) {
 178                         bb_num = GPOINTER_TO_INT (g_hash_table_lookup (offset_to_bb_hash, GINT_TO_POINTER (i)));
 179                         if (bb_num) {
 180                                 fprintf (ofd, "\n.stabd 68,0,%d\n", bb_num - 1);
 181                                 cindex = 0;
 182                         }
 183                 }
 184                 if (cindex == 0) {
 185                         fprintf (ofd, "\n.byte %d", (unsigned int) code [i]);
 186                 } else {
 187                         fprintf (ofd, ",%d", (unsigned int) code [i]);
 188                 }
 189                 cindex++;
 190                 if (cindex == 64)
 191                         cindex = 0;
 192         }
 193         fprintf (ofd, "\n");
 194         fclose (ofd);
 195
 196 #ifdef __APPLE__
 197 #ifdef __ppc64__
 198 #define DIS_CMD "otool64 -v -t"
 199 #else
 200 #define DIS_CMD "otool -v -t"
 201 #endif
 202 #else
 203 #if defined(sparc) && !defined(__GNUC__)
 204 #define DIS_CMD "dis"
 205 #elif defined(__i386__) || defined(__x86_64__)
 206 #define DIS_CMD "objdump -l -d"
 207 #else
 208 #define DIS_CMD "objdump -d"
 209 #endif
 210 #endif
 211
 212 #if defined(sparc)
 213 #define AS_CMD "as -xarch=v9"
 214 #elif defined (TARGET_X86)
 215 #  if defined(__APPLE__)
 216 #    define AS_CMD "as -arch i386"
 217 #  else
 218 #    define AS_CMD "as -gstabs"
 219 #  endif
 220 #elif defined (TARGET_AMD64)
 221 #  if defined (__APPLE__)
 222 #    define AS_CMD "as -arch x86_64"
 223 #  else
 224 #    define AS_CMD "as -gstabs"
 225 #  endif
 226 #elif defined (TARGET_ARM)
 227 #  if defined (__APPLE__)
 228 #    define AS_CMD "as -arch arm"
 229 #  else
 230 #    define AS_CMD "as -gstabs"
 231 #  endif
 232 #elif defined(__mips__) && (_MIPS_SIM == _ABIO32)
 233 #define AS_CMD "as -mips32"
 234 #elif defined(__ppc64__)
 235 #define AS_CMD "as -arch ppc64"
 236 #elif defined(__powerpc64__)
 237 #define AS_CMD "as -mppc64"
 238 #else
 239 #define AS_CMD "as"
 240 #endif
 241
 242 #ifdef HOST_WIN32
 243         o_file = g_strdup_printf ("%s/test.o", tmp);
 244 #else
 245         i = g_file_open_tmp (NULL, &o_file, NULL);
 246         close (i);
 247 #endif
 248
 249         cmd = g_strdup_printf (ARCH_PREFIX AS_CMD " %s -o %s", as_file, o_file);
 250         unused = system (cmd);
 251         g_free (cmd);
 252         if (!objdump_args)
 253                 objdump_args = "";
 254
 255         fflush (stdout);
 256
 257 #ifdef __arm__
 258         /*
 259          * The arm assembler inserts ELF directives instructing objdump to display
 260          * everything as data.
 261          */
 262         cmd = g_strdup_printf (ARCH_PREFIX "strip -x %s", o_file);
 263         unused = system (cmd);
 264         g_free (cmd);
 265 #endif
 266
 267         cmd = g_strdup_printf (ARCH_PREFIX DIS_CMD " %s %s", objdump_args, o_file);
 268         unused = system (cmd);
 269         g_free (cmd);
 270
 271 #ifndef HOST_WIN32
 272         unlink (o_file);
 273         unlink (as_file);
 274 #endif
 275         g_free (o_file);
 276         g_free (as_file);
 277 #endif
 278 }
 279