mono/mini/helpers.c

   1 /*
   2  * helpers.c: Assorted routines
   3  *
   4  * (C) 2003 Ximian, Inc.
   5  */
   6
   7 #include <config.h>
   8
   9 #include "mini.h"
  10 #include <ctype.h>
  11 #include <mono/metadata/opcodes.h>
  12
  13 #ifndef HOST_WIN32
  14 #include <unistd.h>
  15 #endif
  16
  17 #ifndef DISABLE_JIT
  18
  19 #ifndef DISABLE_LOGGING
  20
  21 #ifdef MINI_OP
  22 #undef MINI_OP
  23 #endif
  24 #ifdef MINI_OP3
  25 #undef MINI_OP3
  26 #endif
  27
  28 #ifdef HAVE_ARRAY_ELEM_INIT
  29 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
  30 #define MSGSTRFIELD1(line) str##line
  31 static const struct msgstr_t {
  32 #define MINI_OP(a,b,dest,src1,src2) char MSGSTRFIELD(__LINE__) [sizeof (b)];
  33 #define MINI_OP3(a,b,dest,src1,src2,src3) char MSGSTRFIELD(__LINE__) [sizeof (b)];
  34 #include "mini-ops.h"
  35 #undef MINI_OP
  36 #undef MINI_OP3
  37 } opstr = {
  38 #define MINI_OP(a,b,dest,src1,src2) b,
  39 #define MINI_OP3(a,b,dest,src1,src2,src3) b,
  40 #include "mini-ops.h"
  41 #undef MINI_OP
  42 #undef MINI_OP3
  43 };
  44 static const gint16 opidx [] = {
  45 #define MINI_OP(a,b,dest,src1,src2) [a - OP_LOAD] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
  46 #define MINI_OP3(a,b,dest,src1,src2,src3) [a - OP_LOAD] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
  47 #include "mini-ops.h"
  48 #undef MINI_OP
  49 #undef MINI_OP3
  50 };
  51
  52 #else
  53
  54 #define MINI_OP(a,b,dest,src1,src2) b,
  55 #define MINI_OP3(a,b,dest,src1,src2,src3) b,
  56 /* keep in sync with the enum in mini.h */
  57 static const char* const
  58 opnames[] = {
  59 #include "mini-ops.h"
  60 };
  61 #undef MINI_OP
  62 #undef MINI_OP3
  63
  64 #endif
  65
  66 #endif /* DISABLE_LOGGING */
  67
  68 #if defined(__i386__) || defined(__x86_64__)
  69 #if !defined(TARGET_ARM64) && !defined(__APPLE__)
  70 #define emit_debug_info  TRUE
  71 #else
  72 #define emit_debug_info  FALSE
  73 #endif
  74 #else
  75 #define emit_debug_info  FALSE
  76 #endif
  77
  78 /*This enables us to use the right tooling when building the cross compiler for iOS.*/
  79 #if defined (__APPLE__) && defined (TARGET_ARM) && (defined(__i386__) || defined(__x86_64__))
  80
  81 #define ARCH_PREFIX "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/"
  82
  83 #endif
  84
  85 #define ARCH_PREFIX ""
  86 //#define ARCH_PREFIX "powerpc64-linux-gnu-"
  87
  88 const char*
  89 mono_inst_name (int op) {
  90 #ifndef DISABLE_LOGGING
  91         if (op >= OP_LOAD && op <= OP_LAST)
  92 #ifdef HAVE_ARRAY_ELEM_INIT
  93                 return (const char*)&opstr + opidx [op - OP_LOAD];
  94 #else
  95                 return opnames [op - OP_LOAD];
  96 #endif
  97         if (op < OP_LOAD)
  98                 return mono_opcode_name (op);
  99         g_error ("unknown opcode name for %d", op);
 100         return NULL;
 101 #else
 102         g_error ("unknown opcode name for %d", op);
 103         g_assert_not_reached ();
 104 #endif
 105 }
 106
 107 void
 108 mono_blockset_print (MonoCompile *cfg, MonoBitSet *set, const char *name, guint idom)
 109 {
 110 #ifndef DISABLE_LOGGING
 111         int i;
 112
 113         if (name)
 114                 g_print ("%s:", name);
 115
 116         mono_bitset_foreach_bit (set, i, cfg->num_bblocks) {
 117                 if (idom == i)
 118                         g_print (" [BB%d]", cfg->bblocks [i]->block_num);
 119                 else
 120                         g_print (" BB%d", cfg->bblocks [i]->block_num);
 121
 122         }
 123         g_print ("\n");
 124 #endif
 125 }
 126
 127 /**
 128  * mono_disassemble_code:
 129  * @cfg: compilation context
 130  * @code: a pointer to the code
 131  * @size: the code size in bytes
 132  *
 133  * Disassemble to code to stdout.
 134  */
 135 void
 136 mono_disassemble_code (MonoCompile *cfg, guint8 *code, int size, char *id)
 137 {
 138 #if defined(__native_client__)
 139         return;
 140 #endif
 141 #ifndef DISABLE_LOGGING
 142         GHashTable *offset_to_bb_hash = NULL;
 143         int i, cindex, bb_num;
 144         FILE *ofd;
 145 #ifdef HOST_WIN32
 146         const char *tmp = g_get_tmp_dir ();
 147 #endif
 148         const char *objdump_args = g_getenv ("MONO_OBJDUMP_ARGS");
 149         char *as_file;
 150         char *o_file;
 151         char *cmd;
 152         int unused G_GNUC_UNUSED;
 153
 154 #ifdef HOST_WIN32
 155         as_file = g_strdup_printf ("%s/test.s", tmp);
 156
 157         if (!(ofd = fopen (as_file, "w")))
 158                 g_assert_not_reached ();
 159 #else
 160         i = g_file_open_tmp (NULL, &as_file, NULL);
 161         ofd = fdopen (i, "w");
 162         g_assert (ofd);
 163 #endif
 164
 165         for (i = 0; id [i]; ++i) {
 166                 if (i == 0 && isdigit (id [i]))
 167                         fprintf (ofd, "_");
 168                 else if (!isalnum (id [i]))
 169                         fprintf (ofd, "_");
 170                 else
 171                         fprintf (ofd, "%c", id [i]);
 172         }
 173         fprintf (ofd, ":\n");
 174
 175         if (emit_debug_info && cfg != NULL) {
 176                 MonoBasicBlock *bb;
 177
 178                 fprintf (ofd, ".stabs   \"\",100,0,0,.Ltext0\n");
 179                 fprintf (ofd, ".stabs   \"<BB>\",100,0,0,.Ltext0\n");
 180                 fprintf (ofd, ".Ltext0:\n");
 181
 182                 offset_to_bb_hash = g_hash_table_new (NULL, NULL);
 183                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
 184                         g_hash_table_insert (offset_to_bb_hash, GINT_TO_POINTER (bb->native_offset), GINT_TO_POINTER (bb->block_num + 1));
 185                 }
 186         }
 187
 188         cindex = 0;
 189         for (i = 0; i < size; ++i) {
 190                 if (emit_debug_info && cfg != NULL) {
 191                         bb_num = GPOINTER_TO_INT (g_hash_table_lookup (offset_to_bb_hash, GINT_TO_POINTER (i)));
 192                         if (bb_num) {
 193                                 fprintf (ofd, "\n.stabd 68,0,%d\n", bb_num - 1);
 194                                 cindex = 0;
 195                         }
 196                 }
 197                 if (cindex == 0) {
 198                         fprintf (ofd, "\n.byte %d", (unsigned int) code [i]);
 199                 } else {
 200                         fprintf (ofd, ",%d", (unsigned int) code [i]);
 201                 }
 202                 cindex++;
 203                 if (cindex == 64)
 204                         cindex = 0;
 205         }
 206         fprintf (ofd, "\n");
 207         fclose (ofd);
 208
 209 #ifdef __APPLE__
 210 #ifdef __ppc64__
 211 #define DIS_CMD "otool64 -v -t"
 212 #else
 213 #define DIS_CMD "otool -v -t"
 214 #endif
 215 #else
 216 #if defined(sparc) && !defined(__GNUC__)
 217 #define DIS_CMD "dis"
 218 #elif defined(TARGET_X86)
 219 #define DIS_CMD "objdump -l -d"
 220 #elif defined(TARGET_AMD64)
 221   #if defined(HOST_WIN32)
 222   #define DIS_CMD "x86_64-w64-mingw32-objdump.exe -M x86-64 -d"
 223   #else
 224   #define DIS_CMD "objdump -l -d"
 225   #endif
 226 #else
 227 #define DIS_CMD "objdump -d"
 228 #endif
 229 #endif
 230
 231 #if defined(sparc)
 232 #define AS_CMD "as -xarch=v9"
 233 #elif defined (TARGET_X86)
 234 #  if defined(__APPLE__)
 235 #    define AS_CMD "as -arch i386"
 236 #  else
 237 #    define AS_CMD "as -gstabs"
 238 #  endif
 239 #elif defined (TARGET_AMD64)
 240 #  if defined (__APPLE__)
 241 #    define AS_CMD "as -arch x86_64"
 242 #  else
 243 #    define AS_CMD "as -gstabs"
 244 #  endif
 245 #elif defined (TARGET_ARM)
 246 #  if defined (__APPLE__)
 247 #    define AS_CMD "as -arch arm"
 248 #  else
 249 #    define AS_CMD "as -gstabs"
 250 #  endif
 251 #elif defined (TARGET_ARM64)
 252 #  if defined (__APPLE__)
 253 #    define AS_CMD "clang -c -arch arm64 -g -x assembler"
 254 #  else
 255 #    define AS_CMD "as -gstabs"
 256 #  endif
 257 #elif defined(__mips__) && (_MIPS_SIM == _ABIO32)
 258 #define AS_CMD "as -mips32"
 259 #elif defined(__ppc64__)
 260 #define AS_CMD "as -arch ppc64"
 261 #elif defined(__powerpc64__)
 262 #define AS_CMD "as -mppc64"
 263 #else
 264 #define AS_CMD "as"
 265 #endif
 266
 267 #ifdef HOST_WIN32
 268         o_file = g_strdup_printf ("%s/test.o", tmp);
 269 #else
 270         i = g_file_open_tmp (NULL, &o_file, NULL);
 271         close (i);
 272 #endif
 273
 274 #ifdef HAVE_SYSTEM
 275         cmd = g_strdup_printf (ARCH_PREFIX AS_CMD " %s -o %s", as_file, o_file);
 276         unused = system (cmd);
 277         g_free (cmd);
 278         if (!objdump_args)
 279                 objdump_args = "";
 280
 281         fflush (stdout);
 282
 283 #ifdef __arm__
 284         /*
 285          * The arm assembler inserts ELF directives instructing objdump to display
 286          * everything as data.
 287          */
 288         cmd = g_strdup_printf (ARCH_PREFIX "strip -x %s", o_file);
 289         unused = system (cmd);
 290         g_free (cmd);
 291 #endif
 292
 293         cmd = g_strdup_printf (ARCH_PREFIX DIS_CMD " %s %s", objdump_args, o_file);
 294         unused = system (cmd);
 295         g_free (cmd);
 296 #else
 297         g_assert_not_reached ();
 298 #endif /* HAVE_SYSTEM */
 299
 300 #ifndef HOST_WIN32
 301         unlink (o_file);
 302         unlink (as_file);
 303 #endif
 304         g_free (o_file);
 305         g_free (as_file);
 306 #endif
 307 }
 308
 309 #else /* DISABLE_JIT */
 310
 311 void
 312 mono_blockset_print (MonoCompile *cfg, MonoBitSet *set, const char *name, guint idom)
 313 {
 314 }
 315
 316 #endif /* DISABLE_JIT */