Diff markup
001 001
>> 002
002 003
003 004
004 005
005 006
006 007
007 008
008 009
009 010
010 011
011 012
012 013
013 014
014 015
015 016
016 017
017 018
018 019
019 020
020 #include <bootstrap/multiboot.h> 021 #include <bootstrap/multiboot.h>
021 #include <hwcore/idt.h> 022 #include <hwcore/idt.h>
022 #include <hwcore/gdt.h> 023 #include <hwcore/gdt.h>
023 #include <hwcore/irq.h> 024 #include <hwcore/irq.h>
024 #include <hwcore/exception.h> 025 #include <hwcore/exception.h>
025 #include <hwcore/i8254.h> 026 #include <hwcore/i8254.h>
026 #include <sos/list.h> 027 #include <sos/list.h>
027 #include <sos/physmem.h> 028 #include <sos/physmem.h>
028 #include <hwcore/paging.h> 029 #include <hwcore/paging.h>
029 #include <hwcore/mm_context.h> <<
030 #include <hwcore/swintr.h> <<
031 #include <sos/kmem_vmm.h> 030 #include <sos/kmem_vmm.h>
032 #include <sos/kmalloc.h> 031 #include <sos/kmalloc.h>
033 #include <sos/time.h> <<
034 #include <sos/thread.h> <<
035 #include <sos/process.h> <<
036 #include <sos/klibc.h> 032 #include <sos/klibc.h>
037 #include <sos/assert.h> 033 #include <sos/assert.h>
038 #include <drivers/x86_videomem.h> 034 #include <drivers/x86_videomem.h>
039 #include <drivers/bochs.h> 035 #include <drivers/bochs.h>
040 #include <sos/calcload.h> <<
041 036
042 037
043 038
044 039
045 void display_bits(unsigned char row, unsigned 040 void display_bits(unsigned char row, unsigned char col,
046 unsigned char attribute, 041 unsigned char attribute,
047 sos_ui32_t integer) 042 sos_ui32_t integer)
048 { 043 {
049 int i; 044 int i;
050 045
051 for (i = 31 ; i >= 0 ; i--) 046 for (i = 31 ; i >= 0 ; i--)
052 { 047 {
053 048
054 int bit_i = (integer & (1 << i)); 049 int bit_i = (integer & (1 << i));
055 050
056 unsigned char ascii_code = bit_i?219:177 051 unsigned char ascii_code = bit_i?219:177;
057 sos_x86_videomem_putchar(row, col++, 052 sos_x86_videomem_putchar(row, col++,
058 attribute, 053 attribute,
059 ascii_code); 054 ascii_code);
060 } 055 }
061 } 056 }
062 057
063 058
064 059
065 static void clk_it(int intid) !! 060 static void clk_it(int intid,
>> 061 const struct sos_cpu_kstate *cpu_kstate)
066 { 062 {
067 static sos_ui32_t clock_count = 0; 063 static sos_ui32_t clock_count = 0;
068 064
069 display_bits(0, 48, 065 display_bits(0, 48,
070 SOS_X86_VIDEO_FG_LTGREEN | SOS_ 066 SOS_X86_VIDEO_FG_LTGREEN | SOS_X86_VIDEO_BG_BLUE,
071 clock_count); 067 clock_count);
072 clock_count++; 068 clock_count++;
073 <<
074 <<
075 sos_time_do_tick(); <<
076 <<
077 <<
078 sos_sched_do_timer_tick(); <<
079 } 069 }
080 070
081 071
082 072
083 073
084 074
085 075
>> 076
>> 077 static void dump_backtrace(const struct sos_cpu_kstate *cpu_kstate,
>> 078 sos_vaddr_t stack_bottom,
>> 079 sos_size_t stack_size,
>> 080 sos_bool_t on_console,
>> 081 sos_bool_t on_bochs)
>> 082 {
>> 083 static void backtracer(sos_vaddr_t PC,
>> 084 sos_vaddr_t params,
>> 085 sos_ui32_t depth,
>> 086 void *custom_arg)
>> 087 {
>> 088 sos_ui32_t invalid = 0xffffffff, *arg1, *arg2, *arg3, *arg4;
>> 089
>> 090
>> 091
>> 092
>> 093
>> 094 arg1 = (sos_ui32_t*)params;
>> 095 arg2 = (sos_ui32_t*)(params+4);
>> 096 arg3 = (sos_ui32_t*)(params+8);
>> 097 arg4 = (sos_ui32_t*)(params+12);
>> 098
>> 099
>> 100
>> 101 #define INTERVAL_OK(b,v,u) ( ((b) <= (sos_vaddr_t)(v)) \
>> 102 && ((sos_vaddr_t)(v) < (u)) )
>> 103 if (!INTERVAL_OK(stack_bottom, arg1, stack_bottom + stack_size))
>> 104 arg1 = &invalid;
>> 105 if (!INTERVAL_OK(stack_bottom, arg2, stack_bottom + stack_size))
>> 106 arg2 = &invalid;
>> 107 if (!INTERVAL_OK(stack_bottom, arg3, stack_bottom + stack_size))
>> 108 arg3 = &invalid;
>> 109 if (!INTERVAL_OK(stack_bottom, arg4, stack_bottom + stack_size))
>> 110 arg4 = &invalid;
>> 111
>> 112
>> 113 if (on_bochs)
>> 114 sos_bochs_printf("[%d] PC=0x%x arg1=0x%x arg2=0x%x arg3=0x%x\n",
>> 115 (unsigned)depth, (unsigned)PC,
>> 116 (unsigned)*arg1, (unsigned)*arg2,
>> 117 (unsigned)*arg3);
>> 118
>> 119 if (on_console)
>> 120 sos_x86_videomem_printf(23-depth, 3,
>> 121 SOS_X86_VIDEO_BG_BLUE
>> 122 | SOS_X86_VIDEO_FG_LTGREEN,
>> 123 "[%d] PC=0x%x arg1=0x%x arg2=0x%x arg3=0x%x arg4=0x%x",
>> 124 (unsigned)depth, PC,
>> 125 (unsigned)*arg1, (unsigned)*arg2,
>> 126 (unsigned)*arg3, (unsigned)*arg4);
>> 127
>> 128 }
>> 129
>> 130 sos_backtrace(cpu_kstate, 15, stack_bottom, stack_size, backtracer, NULL);
>> 131 }
>> 132
086 133
087 134
088 static void pgflt_ex(int intid, struct sos_cpu !! 135 static void pgflt_ex(int intid, const struct sos_cpu_kstate *ctxt)
089 { 136 {
090 static sos_ui32_t demand_paging_count = 0; 137 static sos_ui32_t demand_paging_count = 0;
091 sos_vaddr_t faulting_vaddr = sos_cpu_contex !! 138 sos_vaddr_t faulting_vaddr = sos_cpu_kstate_get_EX_faulting_vaddr(ctxt);
092 sos_paddr_t ppage_paddr; 139 sos_paddr_t ppage_paddr;
093 140
094 if (sos_cpu_context_is_in_user_mode(ctxt)) <<
095 { <<
096 <<
097 <<
098 sos_bochs_printf("Unresolved USER page F <<
099 sos_cpu_context_get_PC( <<
100 (unsigned)faulting_vadd <<
101 (unsigned)sos_cpu_conte <<
102 sos_bochs_printf("Terminating User threa <<
103 sos_thread_exit(); <<
104 } <<
105 <<
106 141
107 if (! sos_kmem_vmm_is_valid_vaddr(faulting_v 142 if (! sos_kmem_vmm_is_valid_vaddr(faulting_vaddr))
108 { 143 {
109 144
110 145
111 sos_display_fatal_error("Unresolved page !! 146 dump_backtrace(ctxt,
112 sos_cpu_context_ !! 147 bootstrap_stack_bottom,
>> 148 bootstrap_stack_size,
>> 149 TRUE, TRUE);
>> 150 sos_display_fatal_error("Unresolved page Fault on access to address 0x%x (info=%x)!",
113 (unsigned)faulti 151 (unsigned)faulting_vaddr,
114 (unsigned)sos_cp !! 152 (unsigned)sos_cpu_kstate_get_EX_info(ctxt));
115 SOS_ASSERT_FATAL(! "Got page fault (note 153 SOS_ASSERT_FATAL(! "Got page fault (note: demand paging is disabled)");
116 } 154 }
117 155
118 156
119 157
120 !! 158
121 159
122 160
123 161
124 demand_paging_count ++; 162 demand_paging_count ++;
125 display_bits(0, 0, 163 display_bits(0, 0,
126 SOS_X86_VIDEO_FG_LTRED | SOS_X8 164 SOS_X86_VIDEO_FG_LTRED | SOS_X86_VIDEO_BG_BLUE,
127 demand_paging_count); 165 demand_paging_count);
128 166
129 167
130 ppage_paddr = sos_physmem_ref_physpage_new(F 168 ppage_paddr = sos_physmem_ref_physpage_new(FALSE);
131 if (! ppage_paddr) 169 if (! ppage_paddr)
132 SOS_ASSERT_FATAL(! "TODO: implement swap. 170 SOS_ASSERT_FATAL(! "TODO: implement swap. (Out of mem in demand paging because no swap for kernel yet !)");
133 SOS_ASSERT_FATAL(SOS_OK == sos_paging_map(pp 171 SOS_ASSERT_FATAL(SOS_OK == sos_paging_map(ppage_paddr,
134 SO 172 SOS_PAGE_ALIGN_INF(faulting_vaddr),
135 FA 173 FALSE,
136 SO 174 SOS_VM_MAP_PROT_READ
137 | 175 | SOS_VM_MAP_PROT_WRITE
138 | 176 | SOS_VM_MAP_ATOMIC));
139 sos_physmem_unref_physpage(ppage_paddr); 177 sos_physmem_unref_physpage(ppage_paddr);
140 178
141 179
142 } 180 }
143 181
144 182
>> 183
145 184
146 !! 185
147 !! 186
148 !! 187
149 !! 188
>> 189
>> 190
150 191
>> 192 struct sos_cpu_kstate *ctxt_hello1;
>> 193 struct sos_cpu_kstate *ctxt_hello2;
>> 194 struct sos_cpu_kstate *ctxt_main;
>> 195 sos_vaddr_t hello1_stack, hello2_stack;
151 196
152 struct thr_arg !! 197 static void reclaim_stack(sos_vaddr_t stack_vaddr)
153 { 198 {
154 char character; !! 199 sos_kfree(stack_vaddr);
155 int color; !! 200 }
156 201
157 int col; <<
158 int row; <<
159 }; <<
160 202
>> 203 static void exit_hello12(sos_vaddr_t stack_vaddr)
>> 204 {
>> 205 sos_cpu_kstate_exit_to(ctxt_main,
>> 206 (sos_cpu_kstate_function_arg1_t*) reclaim_stack,
>> 207 stack_vaddr);
>> 208 }
>> 209
>> 210
>> 211 static void hello1 (char *str)
>> 212 {
>> 213 for ( ; *str != '\n' ; str++)
>> 214 {
>> 215 sos_bochs_printf("hello1: %c\n", *str);
>> 216 sos_cpu_kstate_switch(& ctxt_hello1, ctxt_hello2);
>> 217 }
>> 218
>> 219
>> 220
>> 221
>> 222
>> 223
>> 224 }
>> 225
>> 226
>> 227 static void hello2 (char *str)
>> 228 {
>> 229 for ( ; *str != '\n' ; str++)
>> 230 {
>> 231 sos_bochs_printf("hello2: %c\n", *str);
>> 232 sos_cpu_kstate_switch(& ctxt_hello2, ctxt_hello1);
>> 233 }
>> 234
>> 235
>> 236
>> 237
>> 238
>> 239
>> 240 }
>> 241
>> 242
>> 243 void print_hello_world ()
>> 244 {
>> 245 #define DEMO_STACK_SIZE 1024
>> 246
>> 247 hello1_stack = sos_kmalloc(DEMO_STACK_SIZE, 0);
>> 248 hello2_stack = sos_kmalloc(DEMO_STACK_SIZE, 0);
>> 249
>> 250
>> 251 sos_cpu_kstate_init(&ctxt_hello1,
>> 252 (sos_cpu_kstate_function_arg1_t*) hello1,
>> 253 (sos_ui32_t) "Hlowrd",
>> 254 (sos_vaddr_t) hello1_stack, DEMO_STACK_SIZE,
>> 255 (sos_cpu_kstate_function_arg1_t*) exit_hello12,
>> 256 (sos_ui32_t) hello1_stack);
>> 257 sos_cpu_kstate_init(&ctxt_hello2,
>> 258 (sos_cpu_kstate_function_arg1_t*) hello2,
>> 259 (sos_ui32_t) "el ol\n",
>> 260 (sos_vaddr_t) hello2_stack, DEMO_STACK_SIZE,
>> 261 (sos_cpu_kstate_function_arg1_t*) exit_hello12,
>> 262 (sos_ui32_t) hello2_stack);
>> 263
>> 264
>> 265 sos_bochs_printf("Printing Hello World\\n...\n");
>> 266 sos_cpu_kstate_switch(& ctxt_main, ctxt_hello1);
>> 267
>> 268
>> 269 sos_bochs_printf("Back in main !\n");
>> 270 }
>> 271
>> 272
>> 273
>> 274
>> 275
>> 276
>> 277
>> 278 static void test_demand_paging(int nb_alloc_vpages, int nb_alloc_ppages)
>> 279 {
>> 280 int i;
>> 281 sos_vaddr_t base_vaddr;
>> 282
>> 283 sos_x86_videomem_printf(10, 0,
>> 284 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_LTGREEN,
>> 285 "Demand paging test (alloc %dMB of VMM, test %dkB RAM)",
>> 286 nb_alloc_vpages >> 8, nb_alloc_ppages << 2);
>> 287
>> 288
>> 289 base_vaddr = sos_kmem_vmm_alloc(nb_alloc_vpages, 0);
>> 290
>> 291 SOS_ASSERT_FATAL(base_vaddr != (sos_vaddr_t)NULL);
>> 292 sos_x86_videomem_printf(11, 0,
>> 293 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 294 "Allocated virtual region [0x%x, 0x%x[",
>> 295 base_vaddr,
>> 296 base_vaddr + nb_alloc_vpages*SOS_PAGE_SIZE);
>> 297
>> 298
>> 299 for (i = 0 ; (i < nb_alloc_ppages) && (i < nb_alloc_vpages) ; i++)
>> 300 {
>> 301
>> 302 sos_ui32_t *value, j;
>> 303 sos_vaddr_t vaddr = base_vaddr;
>> 304 vaddr += (nb_alloc_vpages - (i + 1))*SOS_PAGE_SIZE;
>> 305 vaddr += 2345;
>> 306
>> 307 sos_x86_videomem_printf(12, 0,
>> 308 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 309 "Writing %d at virtual address 0x%x...",
>> 310 i, vaddr);
>> 311
>> 312
>> 313 value = (sos_ui32_t*)vaddr;
>> 314 *value = i;
>> 315
>> 316
>> 317 sos_x86_videomem_printf(13, 0,
>> 318 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 319 "Value read at address 0x%x = %d",
>> 320 vaddr, (unsigned)*value);
>> 321 }
>> 322
>> 323 SOS_ASSERT_FATAL(SOS_OK == sos_kmem_vmm_free(base_vaddr));
>> 324
>> 325 sos_x86_videomem_printf(14, 0,
>> 326 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 327 "Done (area un-allocated)");
>> 328 }
>> 329
>> 330
>> 331
>> 332
>> 333
>> 334
>> 335
>> 336
>> 337 static void test_backtrace(int i, int magic, sos_vaddr_t stack_bottom,
>> 338 sos_size_t stack_size)
>> 339 {
>> 340 if (i <= 0)
>> 341 {
>> 342
>> 343
>> 344 *((char*)0x42) = 12;
>> 345
>> 346
>> 347
>> 348 }
>> 349 else
>> 350 test_backtrace(i-1, magic, stack_bottom, stack_size);
>> 351 }
>> 352
>> 353
>> 354
>> 355
>> 356
>> 357
>> 358
>> 359
>> 360
>> 361
>> 362
>> 363
>> 364
>> 365
>> 366
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>> 369
>> 370
>> 371
>> 372
>> 373
>> 374
>> 375
>> 376
>> 377
>> 378
>> 379
>> 380
>> 381
>> 382
>> 383
>> 384
>> 385
>> 386
>> 387
>> 388
>> 389
>> 390
>> 391
>> 392
>> 393
>> 394
>> 395
>> 396
>> 397
>> 398
>> 399
>> 400
>> 401
>> 402
>> 403
>> 404
>> 405
>> 406
>> 407
>> 408
>> 409
>> 410
>> 411
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>> 413
>> 414
>> 415
>> 416
>> 417
>> 418
>> 419
>> 420
>> 421
>> 422
>> 423
>> 424
>> 425
>> 426
>> 427
>> 428
>> 429
>> 430
>> 431
>> 432
>> 433
>> 434
>> 435 static char stack_reader[1024];
>> 436 static char stack_lexer[1024];
>> 437 static char deep_stack[65536];
>> 438
>> 439
>> 440 static struct sos_cpu_kstate *st_reader, *st_lexer, *st_parser,
>> 441 *st_eval, *st_free, *st_main;
161 442
162 static void demo_thread(void *arg) !! 443
>> 444
>> 445
>> 446
>> 447
>> 448 static void reclaim(int unused)
>> 449 {
>> 450 }
>> 451 static void func_exit(sos_ui32_t unused)
163 { 452 {
164 struct thr_arg *thr_arg = (struct thr_arg*)a !! 453 sos_cpu_kstate_exit_to(st_main, (sos_cpu_kstate_function_arg1_t*)reclaim, 0);
165 int progress = 0; !! 454 }
>> 455
166 456
167 sos_bochs_printf("start %c", thr_arg->charac !! 457
168 while (1) !! 458
>> 459
>> 460
>> 461
>> 462 static char data_reader_to_lexer;
>> 463
>> 464 static void func_reader(const char *str)
>> 465 {
>> 466 for ( ; str && (*str != '\0') ; str++)
169 { 467 {
170 progress ++; !! 468 data_reader_to_lexer = *str;
171 display_bits(thr_arg->row, thr_arg->col+ !! 469 sos_cpu_kstate_switch(& st_reader, st_lexer);
>> 470 }
>> 471
>> 472 data_reader_to_lexer = '\0';
>> 473 sos_cpu_kstate_switch(& st_reader, st_lexer);
>> 474 }
172 475
173 sos_bochs_putchar(thr_arg->character); <<
174 476
175 !! 477
176 if ((random() % 100) == 0) !! 478
>> 479
>> 480
>> 481
>> 482
>> 483 #define STR_VAR_MAXLEN 16
>> 484 static struct lex_elem
>> 485 {
>> 486 enum { LEX_IS_NUMBER, LEX_IS_OPER, LEX_IS_VAR,
>> 487 LEX_IS_OPENPAR, LEX_IS_CLOSEPAR, LEX_END } type;
>> 488 union {
>> 489 int number;
>> 490 char operator;
>> 491 char var[STR_VAR_MAXLEN];
>> 492 };
>> 493 } data_lexer_to_parser;
>> 494
>> 495 static void func_lexer(sos_ui32_t unused)
>> 496 {
>> 497 char c;
>> 498 enum { GOT_SPACE, GOT_NUM, GOT_OP, GOT_STR,
>> 499 GOT_OPENPAR, GOT_CLOSEPAR } got_what, got_what_before;
>> 500
>> 501 data_lexer_to_parser.number = 0;
>> 502 got_what_before = GOT_SPACE;
>> 503 do
>> 504 {
>> 505
>> 506 sos_cpu_kstate_switch(& st_lexer, st_reader);
>> 507 c = data_reader_to_lexer;
>> 508
>> 509
>> 510 if ( (c >= '0') && (c <= '9') )
>> 511 got_what = GOT_NUM;
>> 512 else if ( (c == '+') || (c == '-') || (c == '*') || (c == '/') )
>> 513 got_what = GOT_OP;
>> 514 else if ( ( (c >= 'a') && (c <= 'z') )
>> 515 || ( (c >= 'A') && (c <= 'Z') ) )
>> 516 got_what = GOT_STR;
>> 517 else if (c == '(')
>> 518 got_what = GOT_OPENPAR;
>> 519 else if (c == ')')
>> 520 got_what = GOT_CLOSEPAR;
>> 521 else
>> 522 got_what = GOT_SPACE;
>> 523
>> 524
>> 525 if ( (got_what != got_what_before)
>> 526 || (got_what_before == GOT_OP)
>> 527 || (got_what_before == GOT_OPENPAR)
>> 528 || (got_what_before == GOT_CLOSEPAR) )
177 { 529 {
178 sos_bochs_printf("[37myield(%c)[m\ !! 530
179 sos_x86_videomem_putchar(thr_arg->ro !! 531
180 SOS_ASSERT_FATAL(SOS_OK == sos_threa !! 532 if ( (got_what_before != GOT_SPACE) )
181 sos_x86_videomem_putchar(thr_arg->ro !! 533 sos_cpu_kstate_switch(& st_lexer, st_parser);
>> 534
>> 535 data_lexer_to_parser.number = 0;
182 } 536 }
183 537
184 !! 538
185 else if ((random() % 200) == 0) !! 539 if (got_what == GOT_OP)
186 { 540 {
187 struct sos_time t = (struct sos_time !! 541 data_lexer_to_parser.type = LEX_IS_OPER;
188 sos_bochs_printf("[37msleep1(%c)[m !! 542 data_lexer_to_parser.operator = c;
189 sos_x86_videomem_putchar(thr_arg->ro <<
190 SOS_ASSERT_FATAL(SOS_OK == sos_threa <<
191 SOS_ASSERT_FATAL(sos_time_is_zero(& <<
192 sos_x86_videomem_putchar(thr_arg->ro <<
193 } 543 }
194 !! 544 else if (got_what == GOT_NUM)
195 !! 545 {
196 else if ((random() % 300) == 0) !! 546 data_lexer_to_parser.type = LEX_IS_NUMBER;
>> 547 data_lexer_to_parser.number *= 10;
>> 548 data_lexer_to_parser.number += (c - '0');
>> 549 }
>> 550 else if (got_what == GOT_STR)
197 { 551 {
198 struct sos_time t = (struct sos_time !! 552 char to_cat[] = { c, '\0' };
199 sos_bochs_printf("[37msleep2(%c)[m !! 553 data_lexer_to_parser.type = LEX_IS_VAR;
200 sos_x86_videomem_putchar(thr_arg->ro !! 554 strzcat(data_lexer_to_parser.var, to_cat, STR_VAR_MAXLEN);
201 SOS_ASSERT_FATAL(SOS_OK == sos_threa <<
202 SOS_ASSERT_FATAL(sos_time_is_zero(& <<
203 sos_x86_videomem_putchar(thr_arg->ro <<
204 } 555 }
>> 556 else if (got_what == GOT_OPENPAR)
>> 557 data_lexer_to_parser.type = LEX_IS_OPENPAR;
>> 558 else if (got_what == GOT_CLOSEPAR)
>> 559 data_lexer_to_parser.type = LEX_IS_CLOSEPAR;
205 560
206 !! 561 got_what_before = got_what;
207 } 562 }
>> 563 while (c != '\0');
>> 564
>> 565
>> 566 if ( (got_what_before != GOT_SPACE) )
>> 567 sos_cpu_kstate_switch(& st_lexer, st_parser);
>> 568
>> 569
>> 570 data_lexer_to_parser.type = LEX_END;
>> 571 sos_cpu_kstate_switch(& st_lexer, st_parser);
>> 572
>> 573
>> 574
>> 575 sos_bochs_printf("Error: end of string already reached !\n");
>> 576 sos_cpu_kstate_switch(& st_lexer, st_main);
208 } 577 }
209 578
210 579
211 static void test_thread() !! 580
>> 581
>> 582
>> 583 struct syntax_node
212 { 584 {
213 !! 585 enum { YY_IS_BINOP, YY_IS_UNAROP, YY_IS_NUM, YY_IS_VAR } type;
214 !! 586 union
215 static struct thr_arg arg_b, arg_c, arg_d, a !! 587 {
216 sos_ui32_t flags; !! 588 int number;
>> 589 char var[STR_VAR_MAXLEN];
>> 590 struct
>> 591 {
>> 592 char op;
>> 593 struct syntax_node *parm_left, *parm_right;
>> 594 } binop;
>> 595 struct
>> 596 {
>> 597 char op;
>> 598 struct syntax_node *parm;
>> 599 } unarop;
>> 600 };
>> 601 };
217 602
218 sos_disable_IRQs(flags); !! 603 static void func_parser(struct syntax_node ** syntax_tree)
>> 604 {
>> 605 static struct syntax_node *alloc_node_num(int val);
>> 606 static struct syntax_node *alloc_node_var(const char * name);
>> 607 static struct syntax_node *alloc_node_binop(char op,
>> 608 struct syntax_node *parm_left,
>> 609 struct syntax_node *parm_right);
>> 610 static struct syntax_node *alloc_node_unarop(char op,
>> 611 struct syntax_node *parm);
>> 612 static struct syntax_node * get_expr();
>> 613 static struct syntax_node * get_expr_lr(struct syntax_node *n);
>> 614 static struct syntax_node * get_term();
>> 615 static struct syntax_node * get_term_lr(struct syntax_node *n);
>> 616 static struct syntax_node * get_factor();
>> 617 static struct syntax_node * get_scalar();
219 618
220 arg_b = (struct thr_arg) { .character='b', . !! 619
221 sos_create_kernel_thread("YO[b]", demo_threa !! 620 static struct syntax_node *alloc_node_num(int val)
>> 621 {
>> 622 struct syntax_node *n
>> 623 = (struct syntax_node*) sos_kmalloc(sizeof(struct syntax_node), 0);
>> 624 n->type = YY_IS_NUM;
>> 625 n->number = val;
>> 626 return n;
>> 627 }
>> 628
>> 629 static struct syntax_node *alloc_node_var(const char * name)
>> 630 {
>> 631 struct syntax_node *n
>> 632 = (struct syntax_node*) sos_kmalloc(sizeof(struct syntax_node), 0);
>> 633 n->type = YY_IS_VAR;
>> 634 strzcpy(n->var, name, STR_VAR_MAXLEN);
>> 635 return n;
>> 636 }
>> 637
>> 638 static struct syntax_node *alloc_node_binop(char op,
>> 639 struct syntax_node *parm_left,
>> 640 struct syntax_node *parm_right)
>> 641 {
>> 642 struct syntax_node *n
>> 643 = (struct syntax_node*) sos_kmalloc(sizeof(struct syntax_node), 0);
>> 644 n->type = YY_IS_BINOP;
>> 645 n->binop.op = op;
>> 646 n->binop.parm_left = parm_left;
>> 647 n->binop.parm_right = parm_right;
>> 648 return n;
>> 649 }
>> 650
>> 651 static struct syntax_node *alloc_node_unarop(char op,
>> 652 struct syntax_node *parm)
>> 653 {
>> 654 struct syntax_node *n
>> 655 = (struct syntax_node*) sos_kmalloc(sizeof(struct syntax_node), 0);
>> 656 n->type = YY_IS_UNAROP;
>> 657 n->unarop.op = op;
>> 658 n->unarop.parm = parm;
>> 659 return n;
>> 660 }
>> 661
>> 662
>> 663
>> 664 static void parser_exception(const char *str)
>> 665 {
>> 666 sos_bochs_printf("Parser exception: %s\n", str);
>> 667 sos_cpu_kstate_switch(& st_parser, st_main);
>> 668 }
222 669
223 arg_c = (struct thr_arg) { .character='c', . !! 670
224 sos_create_kernel_thread("YO[c]", demo_threa !! 671
>> 672 static int get_number()
>> 673 {
>> 674 int v;
>> 675 if (data_lexer_to_parser.type != LEX_IS_NUMBER)
>> 676 parser_exception("Expected number");
>> 677 v = data_lexer_to_parser.number;
>> 678 sos_cpu_kstate_switch(& st_parser, st_lexer);
>> 679 return v;
>> 680 }
>> 681
>> 682
>> 683 static void get_str(char name[STR_VAR_MAXLEN])
>> 684 {
>> 685 if (data_lexer_to_parser.type != LEX_IS_VAR)
>> 686 parser_exception("Expected variable");
>> 687 strzcpy(name, data_lexer_to_parser.var, STR_VAR_MAXLEN);
>> 688 sos_cpu_kstate_switch(& st_parser, st_lexer);
>> 689 }
>> 690
>> 691
>> 692 static char get_op()
>> 693 {
>> 694 char op;
>> 695 if (data_lexer_to_parser.type != LEX_IS_OPER)
>> 696 parser_exception("Expected operator");
>> 697 op = data_lexer_to_parser.operator;
>> 698 sos_cpu_kstate_switch(& st_parser, st_lexer);
>> 699 return op;
>> 700 }
>> 701
>> 702
>> 703 static void get_par()
>> 704 {
>> 705 if ( (data_lexer_to_parser.type != LEX_IS_OPENPAR)
>> 706 && (data_lexer_to_parser.type != LEX_IS_CLOSEPAR) )
>> 707 parser_exception("Expected parenthese");
>> 708 sos_cpu_kstate_switch(& st_parser, st_lexer);
>> 709 }
225 710
226 arg_d = (struct thr_arg) { .character='d', . !! 711
227 sos_create_kernel_thread("YO[d]", demo_threa !! 712 static struct syntax_node * get_expr()
>> 713 {
>> 714 struct syntax_node *t = get_term();
>> 715 return get_expr_lr(t);
>> 716 }
>> 717
>> 718 static struct syntax_node * get_expr_lr(struct syntax_node *n)
>> 719 {
>> 720 if ( (data_lexer_to_parser.type == LEX_IS_OPER)
>> 721 && ( (data_lexer_to_parser.operator == '+')
>> 722 || (data_lexer_to_parser.operator == '-') ) )
>> 723 {
>> 724 char op = get_op();
>> 725 struct syntax_node *term = get_term();
>> 726 struct syntax_node *node_op = alloc_node_binop(op, n, term);
>> 727 return get_expr_lr(node_op);
>> 728 }
>> 729 return n;
>> 730 }
>> 731
>> 732 static struct syntax_node * get_term()
>> 733 {
>> 734 struct syntax_node *f1 = get_factor();
>> 735 return get_term_lr(f1);
>> 736 }
>> 737
>> 738 static struct syntax_node * get_term_lr(struct syntax_node *n)
>> 739 {
>> 740 if ( (data_lexer_to_parser.type == LEX_IS_OPER)
>> 741 && ( (data_lexer_to_parser.operator == '*')
>> 742 || (data_lexer_to_parser.operator == '/') ) )
>> 743 {
>> 744 char op = get_op();
>> 745 struct syntax_node *factor = get_factor();
>> 746 struct syntax_node *node_op = alloc_node_binop(op, n, factor);
>> 747 return get_term_lr(node_op);
>> 748 }
>> 749 return n;
>> 750 }
>> 751
>> 752 static struct syntax_node * get_factor()
>> 753 {
>> 754 if ( (data_lexer_to_parser.type == LEX_IS_OPER)
>> 755 && ( (data_lexer_to_parser.operator == '-')
>> 756 || (data_lexer_to_parser.operator == '+') ) )
>> 757 { char op = data_lexer_to_parser.operator;
>> 758 get_op(); return alloc_node_unarop(op, get_factor()); }
>> 759 else if (data_lexer_to_parser.type == LEX_IS_OPENPAR)
>> 760 {
>> 761 struct syntax_node *expr;
>> 762 get_par();
>> 763 expr = get_expr();
>> 764 if (data_lexer_to_parser.type != LEX_IS_CLOSEPAR)
>> 765 parser_exception("Mismatched parentheses");
>> 766 get_par();
>> 767 return expr;
>> 768 }
>> 769
>> 770 return get_scalar();
>> 771 }
>> 772
>> 773 static struct syntax_node * get_scalar()
>> 774 {
>> 775 if (data_lexer_to_parser.type != LEX_IS_NUMBER)
>> 776 {
>> 777 char var[STR_VAR_MAXLEN];
>> 778 get_str(var);
>> 779 return alloc_node_var(var);
>> 780 }
>> 781 return alloc_node_num(get_number());
>> 782 }
228 783
229 arg_e = (struct thr_arg) { .character='e', . <<
230 sos_create_kernel_thread("YO[e]", demo_threa <<
231 784
232 arg_R = (struct thr_arg) { .character='R', . !! 785
233 sos_create_kernel_thread("YO[R]", demo_threa !! 786
>> 787
234 788
235 arg_S = (struct thr_arg) { .character='S', . !! 789
236 sos_create_kernel_thread("YO[S]", demo_threa !! 790 sos_cpu_kstate_switch(& st_parser, st_lexer);
237 791
238 sos_restore_IRQs(flags); !! 792
>> 793 *syntax_tree = get_expr();
>> 794
239 } 795 }
240 796
241 797
242 !! 798
243 !! 799
244 <<
245 800
246 static void idle_thread() !! 801 static struct syntax_node * parse_expression(const char *expr)
247 { 802 {
248 sos_ui32_t idle_twiddle = 0; !! 803 struct syntax_node *retval = NULL;
>> 804
>> 805
>> 806 sos_cpu_kstate_init(& st_reader,
>> 807 (sos_cpu_kstate_function_arg1_t*)func_reader,
>> 808 (sos_ui32_t)expr,
>> 809 (sos_vaddr_t)stack_reader, sizeof(stack_reader),
>> 810 (sos_cpu_kstate_function_arg1_t*)func_exit, 0);
>> 811 sos_cpu_kstate_init(& st_lexer,
>> 812 (sos_cpu_kstate_function_arg1_t*)func_lexer,
>> 813 0,
>> 814 (sos_vaddr_t)stack_lexer, sizeof(stack_lexer),
>> 815 (sos_cpu_kstate_function_arg1_t*)func_exit, 0);
>> 816 sos_cpu_kstate_init(& st_parser,
>> 817 (sos_cpu_kstate_function_arg1_t*)func_parser,
>> 818 (sos_ui32_t) &retval,
>> 819 (sos_vaddr_t)deep_stack, sizeof(deep_stack),
>> 820 (sos_cpu_kstate_function_arg1_t*)func_exit, 0);
>> 821
>> 822
>> 823 sos_cpu_kstate_switch(& st_main, st_parser);
>> 824 return retval;
>> 825 }
249 826
250 while (1) !! 827
>> 828
>> 829
>> 830
>> 831 struct func_eval_params
>> 832 {
>> 833 const struct syntax_node *e;
>> 834 const char **var_name;
>> 835 int *var_val;
>> 836 int nb_vars;
>> 837
>> 838 int result;
>> 839 };
>> 840
>> 841 static void func_eval(struct func_eval_params *parms)
>> 842 {
>> 843
>> 844
>> 845 static int rec_eval(const struct syntax_node *n,
>> 846 const char* var_name[], int var_val[], int nb_vars)
251 { 847 {
252 !! 848 switch (n->type)
253 !! 849 {
254 asm("hlt\n"); !! 850 case YY_IS_NUM:
>> 851 return n->number;
255 852
256 idle_twiddle ++; !! 853 case YY_IS_VAR:
257 display_bits(0, 0, SOS_X86_VIDEO_FG_GREE !! 854 {
258 idle_twiddle); !! 855 int i;
>> 856 for (i = 0 ; i < nb_vars ; i++)
>> 857 if (0 == strcmp(var_name[i], n->var))
>> 858 return var_val[i];
>> 859
>> 860
>> 861 sos_bochs_printf("ERROR: unknown variable %s\n", n->var);
>> 862 sos_cpu_kstate_switch(& st_eval, st_main);
>> 863 }
>> 864
>> 865 case YY_IS_BINOP:
>> 866 {
>> 867 int left = rec_eval(n->binop.parm_left,
>> 868 var_name, var_val, nb_vars);
>> 869 int right = rec_eval(n->binop.parm_right,
>> 870 var_name, var_val, nb_vars);
>> 871 switch (n->binop.op)
>> 872 {
>> 873 case '+': return left + right;
>> 874 case '-': return left - right;
>> 875 case '*': return left * right;
>> 876 case '/': return left / right;
>> 877 default:
>> 878
>> 879 sos_bochs_printf("ERROR: unknown binop %c\n", n->binop.op);
>> 880 sos_cpu_kstate_switch(& st_eval, st_main);
>> 881 }
>> 882 }
>> 883
>> 884 case YY_IS_UNAROP:
>> 885 {
>> 886 int arg = rec_eval(n->unarop.parm, var_name, var_val, nb_vars);
>> 887 switch (n->unarop.op)
>> 888 {
>> 889 case '-': return -arg;
>> 890 case '+': return arg;
>> 891 default:
>> 892
>> 893 sos_bochs_printf("ERROR: unknown unarop %c\n", n->unarop.op);
>> 894 sos_cpu_kstate_switch(& st_eval, st_main);
>> 895 }
>> 896 }
>> 897 }
259 898
260 !! 899
261 sos_thread_yield(); !! 900 sos_bochs_printf("ERROR: invalid node type\n");
>> 901 sos_cpu_kstate_switch(& st_eval, st_main);
>> 902 return -1;
262 } 903 }
>> 904
>> 905
>> 906
>> 907
>> 908
>> 909
>> 910 parms->result
>> 911 = rec_eval(parms->e, parms->var_name, parms->var_val, parms->nb_vars);
>> 912 }
>> 913
>> 914
>> 915
>> 916
>> 917
>> 918 static int eval_expression(const struct syntax_node *e,
>> 919 const char* var_name[], int var_val[], int nb_vars)
>> 920 {
>> 921 struct func_eval_params p
>> 922 = (struct func_eval_params){ .e=e,
>> 923 .var_name=var_name,
>> 924 .var_val=var_val,
>> 925 .nb_vars=nb_vars,
>> 926 .result = 0 };
>> 927
>> 928 sos_cpu_kstate_init(& st_eval,
>> 929 (sos_cpu_kstate_function_arg1_t*)func_eval,
>> 930 (sos_ui32_t)&p,
>> 931 (sos_vaddr_t)deep_stack, sizeof(deep_stack),
>> 932 (sos_cpu_kstate_function_arg1_t*)func_exit, 0);
>> 933
>> 934
>> 935 sos_cpu_kstate_switch(& st_main, st_eval);
>> 936 return p.result;
263 } 937 }
264 938
265 939
266 !! 940
267 !! 941
268 942
269 static void stat_thread() !! 943 static void func_free(struct syntax_node *n)
270 { 944 {
271 while (1) !! 945 switch (n->type)
272 { 946 {
273 sos_ui32_t flags; !! 947 case YY_IS_NUM:
274 sos_ui32_t load1, load5, load15; !! 948 case YY_IS_VAR:
275 char str1[11], str5[11], str15[11]; !! 949 break;
276 struct sos_time t; !! 950
277 t.sec = 1; !! 951 case YY_IS_BINOP:
278 t.nanosec = 0; !! 952 func_free(n->binop.parm_left);
279 !! 953 func_free(n->binop.parm_right);
280 sos_thread_sleep(& t); !! 954 break;
281 !! 955
282 sos_disable_IRQs(flags); !! 956 case YY_IS_UNAROP:
283 !! 957 func_free(n->unarop.parm);
284 !! 958 break;
285 sos_load_get_sload(&load1, &load5, &load <<
286 sos_load_to_string(str1, load1); <<
287 sos_load_to_string(str5, load5); <<
288 sos_load_to_string(str15, load15); <<
289 sos_x86_videomem_printf(16, 34, <<
290 SOS_X86_VIDEO_FG <<
291 "Kernel (- Idle) <<
292 str1, str5, str1 <<
293 <<
294 sos_load_get_uload(&load1, &load5, &load <<
295 sos_load_to_string(str1, load1); <<
296 sos_load_to_string(str5, load5); <<
297 sos_load_to_string(str15, load15); <<
298 sos_x86_videomem_printf(17, 34, <<
299 SOS_X86_VIDEO_FG <<
300 "User: %s %s %s <<
301 str1, str5, str1 <<
302 <<
303 sos_load_get_uratio(&load1, &load5, &loa <<
304 sos_load_to_string(str1, load1); <<
305 sos_load_to_string(str5, load5); <<
306 sos_load_to_string(str15, load15); <<
307 sos_x86_videomem_printf(18, 34, <<
308 SOS_X86_VIDEO_FG <<
309 "User CPU %%: %s <<
310 str1, str5, str1 <<
311 <<
312 <<
313 sos_load_get_sratio(&load1, &load5, &loa <<
314 sos_load_to_string(str1, load1); <<
315 sos_load_to_string(str5, load5); <<
316 sos_load_to_string(str15, load15); <<
317 sos_x86_videomem_printf(19, 34, <<
318 SOS_X86_VIDEO_FG <<
319 "Kernel CPU %% ( <<
320 str1, str5, str1 <<
321 sos_restore_IRQs(flags); <<
322 } 959 }
>> 960
>> 961 sos_kfree((sos_vaddr_t)n);
>> 962 }
>> 963
>> 964
>> 965
>> 966
>> 967
>> 968 static void free_syntax_tree(struct syntax_node *tree)
>> 969 {
>> 970 sos_cpu_kstate_init(& st_free,
>> 971 (sos_cpu_kstate_function_arg1_t*)func_free,
>> 972 (sos_ui32_t)tree,
>> 973 (sos_vaddr_t)deep_stack, sizeof(deep_stack),
>> 974 (sos_cpu_kstate_function_arg1_t*)func_exit, 0);
>> 975
>> 976
>> 977 sos_cpu_kstate_switch(& st_main, st_free);
323 } 978 }
324 979
325 980
326 981
327 982
328 983
329 void sos_main(unsigned long magic, unsigned lo 984 void sos_main(unsigned long magic, unsigned long addr)
330 { 985 {
331 unsigned i; 986 unsigned i;
332 sos_paddr_t sos_kernel_core_base_paddr, sos_ 987 sos_paddr_t sos_kernel_core_base_paddr, sos_kernel_core_top_paddr;
333 struct sos_time tick_resolution; !! 988 struct syntax_node *syntax_tree;
334 989
335 990
336 991
337 992
338 multiboot_info_t *mbi; 993 multiboot_info_t *mbi;
339 mbi = (multiboot_info_t *) addr; 994 mbi = (multiboot_info_t *) addr;
340 995
341 996
342 sos_bochs_setup(); 997 sos_bochs_setup();
343 998
344 sos_x86_videomem_setup(); 999 sos_x86_videomem_setup();
345 sos_x86_videomem_cls(SOS_X86_VIDEO_BG_BLUE); 1000 sos_x86_videomem_cls(SOS_X86_VIDEO_BG_BLUE);
346 1001
347 1002
348 if (magic == MULTIBOOT_BOOTLOADER_MAGIC) 1003 if (magic == MULTIBOOT_BOOTLOADER_MAGIC)
349 1004
350 sos_x86_videomem_printf(1, 0, 1005 sos_x86_videomem_printf(1, 0,
351 SOS_X86_VIDEO_FG_Y 1006 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
352 "Welcome From GRUB 1007 "Welcome From GRUB to %s%c RAM is %dMB (upper mem = 0x%x kB)",
353 "SOS article 7", ' !! 1008 "SOS", ',',
354 (unsigned)(mbi->me 1009 (unsigned)(mbi->mem_upper >> 10) + 1,
355 (unsigned)mbi->mem 1010 (unsigned)mbi->mem_upper);
356 else 1011 else
357 1012
358 sos_x86_videomem_printf(1, 0, 1013 sos_x86_videomem_printf(1, 0,
359 SOS_X86_VIDEO_FG_Y 1014 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
360 "Welcome to SOS ar !! 1015 "Welcome to SOS");
361 1016
362 sos_bochs_putstring("Message in a bochs: Thi !! 1017 sos_bochs_putstring("Message in a bochs\n");
363 1018
364 1019
365 sos_gdt_subsystem_setup(); 1020 sos_gdt_subsystem_setup();
366 sos_idt_subsystem_setup(); 1021 sos_idt_subsystem_setup();
367 1022
368 1023
369 sos_exception_subsystem_setup(); 1024 sos_exception_subsystem_setup();
370 sos_irq_subsystem_setup(); 1025 sos_irq_subsystem_setup();
371 1026
372 1027
373 sos_i8254_set_frequency(100); 1028 sos_i8254_set_frequency(100);
374 1029
375 <<
376 <<
377 tick_resolution = (struct sos_time) { .sec=0 <<
378 sos_time_subsysem_setup(& tick_resolution); <<
379 <<
380 1030
381 if (magic != MULTIBOOT_BOOTLOADER_MAGIC) 1031 if (magic != MULTIBOOT_BOOTLOADER_MAGIC)
382 { 1032 {
383 sos_x86_videomem_putstring(20, 0, 1033 sos_x86_videomem_putstring(20, 0,
384 SOS_X86_VIDEO 1034 SOS_X86_VIDEO_FG_LTRED
385 | SOS_X86_V 1035 | SOS_X86_VIDEO_BG_BLUE
386 | SOS_X86_V 1036 | SOS_X86_VIDEO_FG_BLINKING,
387 "I'm not load 1037 "I'm not loaded with Grub !");
388 1038
389 for (;;) 1039 for (;;)
390 continue; 1040 continue;
391 } 1041 }
392 1042
393 1043
394 1044
395 1045
396 1046
397 1047
398 sos_irq_set_routine(SOS_IRQ_TIMER, 1048 sos_irq_set_routine(SOS_IRQ_TIMER,
399 clk_it); 1049 clk_it);
400 1050
401 1051
402 1052
403 1053
404 1054
405 1055
406 1056
407 1057
408 sos_physmem_subsystem_setup((mbi->mem_upper< 1058 sos_physmem_subsystem_setup((mbi->mem_upper<<10) + (1<<20),
409 & sos_kernel_cor 1059 & sos_kernel_core_base_paddr,
410 & sos_kernel_cor 1060 & sos_kernel_core_top_paddr);
411 1061
412 1062
413 1063
414 1064
415 1065
416 1066
417 1067
418 SOS_ASSERT_FATAL(SOS_OK == 1068 SOS_ASSERT_FATAL(SOS_OK ==
419 sos_paging_subsystem_setup( 1069 sos_paging_subsystem_setup(sos_kernel_core_base_paddr,
420 1070 sos_kernel_core_top_paddr));
421 1071
422 1072
423 sos_exception_set_routine(SOS_EXCEPT_PAGE_FA 1073 sos_exception_set_routine(SOS_EXCEPT_PAGE_FAULT,
424 pgflt_ex); 1074 pgflt_ex);
425 1075
426 1076
427 1077
428 !! 1078
429 1079
430 if (sos_kmem_vmm_subsystem_setup(sos_kernel_ 1080 if (sos_kmem_vmm_subsystem_setup(sos_kernel_core_base_paddr,
431 sos_kernel_ 1081 sos_kernel_core_top_paddr,
432 bootstrap_s 1082 bootstrap_stack_bottom,
433 bootstrap_s 1083 bootstrap_stack_bottom
434 + bootstrap 1084 + bootstrap_stack_size))
435 sos_bochs_printf("Could not setup the Kern 1085 sos_bochs_printf("Could not setup the Kernel virtual space allocator\n");
436 1086
437 if (sos_kmalloc_subsystem_setup()) 1087 if (sos_kmalloc_subsystem_setup())
438 sos_bochs_printf("Could not setup the Kmal 1088 sos_bochs_printf("Could not setup the Kmalloc subsystem\n");
439 1089
440 1090
441 !! 1091
>> 1092
442 1093
443 sos_mm_context_subsystem_setup(); !! 1094 asm volatile ("sti\n");
444 1095
445 1096
446 !! 1097
447 1098
448 sos_cpu_context_subsystem_setup(); !! 1099 print_hello_world();
>> 1100
449 1101
450 1102
451 !! 1103
452 1104
453 sos_swintr_subsystem_setup(); !! 1105 sos_x86_videomem_printf(4, 0,
>> 1106 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_LTGREEN,
>> 1107 "Coroutine test");
>> 1108 sos_x86_videomem_printf(5, 0,
>> 1109 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 1110 "Parsing...");
>> 1111 syntax_tree = parse_expression(" - ( (69/ toto)+ ( (( - +-- 1))) + --toto*((toto+ - - y - +2*(y-toto))*y) +2*(y-toto) )/- (( y - toto)*2)");
454 1112
>> 1113 if (syntax_tree != NULL)
>> 1114 {
>> 1115 sos_x86_videomem_printf(6, 0,
>> 1116 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 1117 "Evaluating...");
>> 1118 sos_x86_videomem_printf(7, 0,
>> 1119 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 1120 "Result=%d (if 0: check bochs output)",
>> 1121 eval_expression(syntax_tree,
>> 1122 (const char*[]){"toto", "y"},
>> 1123 (int[]){3, 4},
>> 1124 2));
>> 1125 free_syntax_tree(syntax_tree);
>> 1126 sos_x86_videomem_printf(8, 0,
>> 1127 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 1128 "Done (un-allocated syntax tree)");
>> 1129 }
>> 1130 else
>> 1131 {
>> 1132 sos_x86_videomem_printf(6, 0,
>> 1133 SOS_X86_VIDEO_BG_BLUE | SOS_X86_VIDEO_FG_YELLOW,
>> 1134 "Error in parsing (see bochs output)");
>> 1135 }
455 1136
456 1137
457 !! 1138
458 1139
459 !! 1140 test_demand_paging(234567, 500);
460 <<
461 sos_thread_subsystem_setup(bootstrap_stack_b <<
462 bootstrap_stack_s <<
463 1141
464 <<
465 sos_sched_subsystem_setup(); <<
466 <<
467 <<
468 SOS_ASSERT_FATAL(sos_create_kernel_thread("i <<
469 SO <<
470 <<
471 <<
472 sos_load_subsystem_setup(); <<
473 <<
474 <<
475 SOS_ASSERT_FATAL(sos_create_kernel_thread("s <<
476 NU <<
477 SO <<
478 1142
>> 1143
>> 1144
>> 1145
>> 1146
>> 1147 test_backtrace(6, 0xdeadbeef, bootstrap_stack_bottom, bootstrap_stack_size);
479 1148
480 1149
481 !! 1150
482 1151
483 sos_process_subsystem_setup(); <<
484 1152
485 1153
486 !! 1154
487 !! 1155 for (;;)
488 asm volatile ("sti\n"); !! 1156 {
>> 1157
>> 1158
>> 1159 asm("hlt\n");
489 1160
490 !! 1161 continue;
491 extern void test_art7(); !! 1162 }
492 test_art7(); <<
493 <<
494 <<
495 extern void MouseSim(); <<
496 MouseSim(); <<
497 test_thread(); <<
498 <<
499 <<
500 <<
501 <<
502 <<
503 <<
504 <<
505 <<
506 <<
507 <<
508 <<
509 <<
510 <<
511 sos_bochs_printf("Bye from primary thread !\ <<
512 sos_thread_exit(); <<
513 SOS_FATAL_ERROR("No trespassing !"); <<
514 } 1163 }