vm/factor.cpp

   1 #include "master.hpp"
   2
   3 namespace factor
   4 {
   5
   6 void init_globals()
   7 {
   8         init_mvm();
   9 }
  10
  11 void factor_vm::default_parameters(vm_parameters *p)
  12 {
  13         p->embedded_image = false;
  14         p->image_path = NULL;
  15
  16         p->datastack_size = 32 * sizeof(cell);
  17         p->retainstack_size = 32 * sizeof(cell);
  18
  19 #if defined(FACTOR_PPC)
  20         p->callstack_size = 256 * sizeof(cell);
  21 #else
  22         p->callstack_size = 128 * sizeof(cell);
  23 #endif
  24
  25         p->code_size = 64;
  26         p->young_size = sizeof(cell) / 4;
  27         p->aging_size = sizeof(cell) / 2;
  28         p->tenured_size = 24 * sizeof(cell);
  29
  30         p->max_pic_size = 3;
  31
  32         p->fep = false;
  33         p->signals = true;
  34
  35 #ifdef WINDOWS
  36         p->console = GetConsoleWindow() != NULL;
  37 #else
  38         p->console = true;
  39 #endif
  40
  41         p->callback_size = 256;
  42 }
  43
  44 bool factor_vm::factor_arg(const vm_char* str, const vm_char* arg, cell* value)
  45 {
  46         int val;
  47         if(SSCANF(str,arg,&val) > 0)
  48         {
  49                 *value = val;
  50                 return true;
  51         }
  52         else
  53                 return false;
  54 }
  55
  56 void factor_vm::init_parameters_from_args(vm_parameters *p, int argc, vm_char **argv)
  57 {
  58         default_parameters(p);
  59         p->executable_path = argv[0];
  60
  61         int i = 0;
  62
  63         for(i = 1; i < argc; i++)
  64         {
  65                 vm_char *arg = argv[i];
  66                 if(STRCMP(arg,STRING_LITERAL("--")) == 0) break;
  67                 else if(factor_arg(arg,STRING_LITERAL("-datastack=%d"),&p->datastack_size));
  68                 else if(factor_arg(arg,STRING_LITERAL("-retainstack=%d"),&p->retainstack_size));
  69                 else if(factor_arg(arg,STRING_LITERAL("-callstack=%d"),&p->callstack_size));
  70                 else if(factor_arg(arg,STRING_LITERAL("-young=%d"),&p->young_size));
  71                 else if(factor_arg(arg,STRING_LITERAL("-aging=%d"),&p->aging_size));
  72                 else if(factor_arg(arg,STRING_LITERAL("-tenured=%d"),&p->tenured_size));
  73                 else if(factor_arg(arg,STRING_LITERAL("-codeheap=%d"),&p->code_size));
  74                 else if(factor_arg(arg,STRING_LITERAL("-pic=%d"),&p->max_pic_size));
  75                 else if(factor_arg(arg,STRING_LITERAL("-callbacks=%d"),&p->callback_size));
  76                 else if(STRCMP(arg,STRING_LITERAL("-fep")) == 0) p->fep = true;
  77                 else if(STRCMP(arg,STRING_LITERAL("-nosignals")) == 0) p->signals = false;
  78                 else if(STRNCMP(arg,STRING_LITERAL("-i="),3) == 0) p->image_path = arg + 3;
  79                 else if(STRCMP(arg,STRING_LITERAL("-console")) == 0) p->console = true;
  80         }
  81 }
  82
  83 /* Compile code in boot image so that we can execute the startup quotation */
  84 /* Allocates memory */
  85 void factor_vm::prepare_boot_image()
  86 {
  87         std::cout << "*** Stage 2 early init... " << std::flush;
  88
  89         compile_all_words();
  90         update_code_heap_words(true);
  91         initialize_all_quotations();
  92         special_objects[OBJ_STAGE2] = true_object;
  93
  94         std::cout << "done" << std::endl;
  95 }
  96
  97 void factor_vm::init_factor(vm_parameters *p)
  98 {
  99         /* Kilobytes */
 100         p->datastack_size = align_page(p->datastack_size << 10);
 101         p->retainstack_size = align_page(p->retainstack_size << 10);
 102         p->callstack_size = align_page(p->callstack_size << 10);
 103         p->callback_size = align_page(p->callback_size << 10);
 104
 105         /* Megabytes */
 106         p->young_size <<= 20;
 107         p->aging_size <<= 20;
 108         p->tenured_size <<= 20;
 109         p->code_size <<= 20;
 110
 111         /* Disable GC during init as a sanity check */
 112         gc_off = true;
 113
 114         /* OS-specific initialization */
 115         early_init();
 116
 117         const vm_char *executable_path = vm_executable_path();
 118
 119         if(executable_path)
 120                 p->executable_path = executable_path;
 121
 122         if(p->image_path == NULL)
 123         {
 124                 if (embedded_image_p())
 125                 {
 126                         p->embedded_image = true;
 127                         p->image_path = p->executable_path;
 128                 }
 129                 else
 130                         p->image_path = default_image_path();
 131         }
 132
 133         srand((unsigned int)nano_count());
 134         init_ffi();
 135         init_contexts(p->datastack_size,p->retainstack_size,p->callstack_size);
 136         init_callbacks(p->callback_size);
 137         load_image(p);
 138         init_c_io();
 139         init_inline_caching((int)p->max_pic_size);
 140         special_objects[OBJ_CPU] = allot_alien(false_object,(cell)FACTOR_CPU_STRING);
 141         special_objects[OBJ_OS] = allot_alien(false_object,(cell)FACTOR_OS_STRING);
 142         special_objects[OBJ_CELL_SIZE] = tag_fixnum(sizeof(cell));
 143         special_objects[OBJ_EXECUTABLE] = allot_alien(false_object,(cell)p->executable_path);
 144         special_objects[OBJ_ARGS] = false_object;
 145         special_objects[OBJ_EMBEDDED] = false_object;
 146         special_objects[OBJ_VM_COMPILER] = allot_alien(false_object,(cell)FACTOR_COMPILER_VERSION);
 147
 148         /* We can GC now */
 149         gc_off = false;
 150
 151         if(!to_boolean(special_objects[OBJ_STAGE2]))
 152                 prepare_boot_image();
 153
 154         if(p->signals)
 155                 init_signals();
 156
 157         if(p->console)
 158                 open_console();
 159
 160 }
 161
 162 /* May allocate memory */
 163 void factor_vm::pass_args_to_factor(int argc, vm_char **argv)
 164 {
 165         growable_array args(this);
 166
 167         for(fixnum i = 1; i < argc; i++)
 168                 args.add(allot_alien(false_object,(cell)argv[i]));
 169
 170         args.trim();
 171         special_objects[OBJ_ARGS] = args.elements.value();
 172 }
 173
 174 void factor_vm::start_factor(vm_parameters *p)
 175 {
 176         if(p->fep) factorbug();
 177
 178         c_to_factor_toplevel(special_objects[OBJ_STARTUP_QUOT]);
 179 }
 180
 181 void factor_vm::stop_factor()
 182 {
 183         c_to_factor_toplevel(special_objects[OBJ_SHUTDOWN_QUOT]);
 184 }
 185
 186 char *factor_vm::factor_eval_string(char *string)
 187 {
 188         void *func = alien_offset(special_objects[OBJ_EVAL_CALLBACK]);
 189         CODE_TO_FUNCTION_POINTER(func);
 190         return ((char *(*)(char *))func)(string);
 191 }
 192
 193 void factor_vm::factor_eval_free(char *result)
 194 {
 195         free(result);
 196 }
 197
 198 void factor_vm::factor_yield()
 199 {
 200         void *func = alien_offset(special_objects[OBJ_YIELD_CALLBACK]);
 201         CODE_TO_FUNCTION_POINTER(func);
 202         ((void (*)())func)();
 203 }
 204
 205 void factor_vm::factor_sleep(long us)
 206 {
 207         void *func = alien_offset(special_objects[OBJ_SLEEP_CALLBACK]);
 208         CODE_TO_FUNCTION_POINTER(func);
 209         ((void (*)(long))func)(us);
 210 }
 211
 212 void factor_vm::start_standalone_factor(int argc, vm_char **argv)
 213 {
 214         vm_parameters p;
 215         default_parameters(&p);
 216         init_parameters_from_args(&p,argc,argv);
 217         init_factor(&p);
 218         pass_args_to_factor(argc,argv);
 219         start_factor(&p);
 220 }
 221
 222 factor_vm *new_factor_vm()
 223 {
 224         THREADHANDLE thread = thread_id();
 225         factor_vm *newvm = new factor_vm(thread);
 226         register_vm_with_thread(newvm);
 227         thread_vms[thread] = newvm;
 228
 229         return newvm;
 230 }
 231
 232 VM_C_API void start_standalone_factor(int argc, vm_char **argv)
 233 {
 234         factor_vm *newvm = new_factor_vm();
 235         return newvm->start_standalone_factor(argc,argv);
 236 }
 237
 238 }