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