4 * Copyright (c) 2003 Fabrice Bellard
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <sys/ucontext.h>
35 //#define LINUX_VM86_IOPL_FIX
36 //#define TEST_P4_FLAGS
38 #define xglue(x, y) x ## y
39 #define glue(x, y) xglue(x, y)
40 #define stringify(s) tostring(s)
41 #define tostring(s) #s
50 #define __init_call __attribute__ ((unused,__section__ (".initcall.init")))
52 static void *call_start __init_call = NULL;
54 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)
57 #include "test-i386.h"
60 #include "test-i386.h"
63 #include "test-i386.h"
66 #include "test-i386.h"
69 #include "test-i386.h"
72 #include "test-i386.h"
76 #include "test-i386.h"
80 #include "test-i386.h"
85 #include "test-i386.h"
90 #include "test-i386.h"
95 #include "test-i386.h"
100 #include "test-i386.h"
103 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O)
106 #include "test-i386-shift.h"
109 #include "test-i386-shift.h"
112 #include "test-i386-shift.h"
115 #include "test-i386-shift.h"
118 #include "test-i386-shift.h"
122 #include "test-i386-shift.h"
126 #include "test-i386-shift.h"
131 #include "test-i386-shift.h"
136 #include "test-i386-shift.h"
138 /* XXX: should be more precise ? */
140 #define CC_MASK (CC_C)
144 #include "test-i386-shift.h"
148 #include "test-i386-shift.h"
152 #include "test-i386-shift.h"
156 #include "test-i386-shift.h"
158 /* lea test (modrm support) */
159 #define TEST_LEA(STR)\
161 asm("leal " STR ", %0"\
163 : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
164 printf("lea %s = %08x\n", STR, res);\
167 #define TEST_LEA16(STR)\
169 asm(".code16 ; .byte 0x67 ; leal " STR ", %0 ; .code32"\
171 : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
172 printf("lea %s = %08x\n", STR, res);\
178 int eax, ebx, ecx, edx, esi, edi, res;
195 TEST_LEA("0x40(%%eax)");
196 TEST_LEA("0x40(%%ebx)");
197 TEST_LEA("0x40(%%ecx)");
198 TEST_LEA("0x40(%%edx)");
199 TEST_LEA("0x40(%%esi)");
200 TEST_LEA("0x40(%%edi)");
202 TEST_LEA("0x4000(%%eax)");
203 TEST_LEA("0x4000(%%ebx)");
204 TEST_LEA("0x4000(%%ecx)");
205 TEST_LEA("0x4000(%%edx)");
206 TEST_LEA("0x4000(%%esi)");
207 TEST_LEA("0x4000(%%edi)");
209 TEST_LEA("(%%eax, %%ecx)");
210 TEST_LEA("(%%ebx, %%edx)");
211 TEST_LEA("(%%ecx, %%ecx)");
212 TEST_LEA("(%%edx, %%ecx)");
213 TEST_LEA("(%%esi, %%ecx)");
214 TEST_LEA("(%%edi, %%ecx)");
216 TEST_LEA("0x40(%%eax, %%ecx)");
217 TEST_LEA("0x4000(%%ebx, %%edx)");
219 TEST_LEA("(%%ecx, %%ecx, 2)");
220 TEST_LEA("(%%edx, %%ecx, 4)");
221 TEST_LEA("(%%esi, %%ecx, 8)");
223 TEST_LEA("(,%%eax, 2)");
224 TEST_LEA("(,%%ebx, 4)");
225 TEST_LEA("(,%%ecx, 8)");
227 TEST_LEA("0x40(,%%eax, 2)");
228 TEST_LEA("0x40(,%%ebx, 4)");
229 TEST_LEA("0x40(,%%ecx, 8)");
232 TEST_LEA("-10(%%ecx, %%ecx, 2)");
233 TEST_LEA("-10(%%edx, %%ecx, 4)");
234 TEST_LEA("-10(%%esi, %%ecx, 8)");
236 TEST_LEA("0x4000(%%ecx, %%ecx, 2)");
237 TEST_LEA("0x4000(%%edx, %%ecx, 4)");
238 TEST_LEA("0x4000(%%esi, %%ecx, 8)");
240 /* limited 16 bit addressing test */
241 TEST_LEA16("0x4000");
242 TEST_LEA16("(%%bx)");
243 TEST_LEA16("(%%si)");
244 TEST_LEA16("(%%di)");
245 TEST_LEA16("0x40(%%bx)");
246 TEST_LEA16("0x40(%%si)");
247 TEST_LEA16("0x40(%%di)");
248 TEST_LEA16("0x4000(%%bx)");
249 TEST_LEA16("0x4000(%%si)");
250 TEST_LEA16("(%%bx,%%si)");
251 TEST_LEA16("(%%bx,%%di)");
252 TEST_LEA16("0x40(%%bx,%%si)");
253 TEST_LEA16("0x40(%%bx,%%di)");
254 TEST_LEA16("0x4000(%%bx,%%si)");
255 TEST_LEA16("0x4000(%%bx,%%di)");
258 #define TEST_JCC(JCC, v1, v2)\
261 asm("movl $1, %0\n\t"\
267 : "r" (v1), "r" (v2));\
268 printf("%-10s %d\n", "j" JCC, res);\
270 asm("movl $0, %0\n\t"\
272 "set" JCC " %b0\n\t"\
274 : "r" (v1), "r" (v2));\
275 printf("%-10s %d\n", "set" JCC, res);\
277 asm("movl $0x12345678, %0\n\t"\
279 "cmov" JCC "l %3, %0\n\t"\
281 : "r" (v1), "r" (v2), "m" (1));\
282 printf("%-10s R=0x%08x\n", "cmov" JCC "l", res);\
283 asm("movl $0x12345678, %0\n\t"\
285 "cmov" JCC "w %w3, %w0\n\t"\
287 : "r" (v1), "r" (v2), "r" (1));\
288 printf("%-10s R=0x%08x\n", "cmov" JCC "w", res);\
292 /* various jump tests */
295 TEST_JCC("ne", 1, 1);
296 TEST_JCC("ne", 1, 0);
303 TEST_JCC("l", 1, -1);
305 TEST_JCC("le", 1, 1);
306 TEST_JCC("le", 1, 0);
307 TEST_JCC("le", 1, -1);
309 TEST_JCC("ge", 1, 1);
310 TEST_JCC("ge", 1, 0);
311 TEST_JCC("ge", -1, 1);
315 TEST_JCC("g", 1, -1);
319 TEST_JCC("b", 1, -1);
321 TEST_JCC("be", 1, 1);
322 TEST_JCC("be", 1, 0);
323 TEST_JCC("be", 1, -1);
325 TEST_JCC("ae", 1, 1);
326 TEST_JCC("ae", 1, 0);
327 TEST_JCC("ae", 1, -1);
331 TEST_JCC("a", 1, -1);
337 TEST_JCC("np", 1, 1);
338 TEST_JCC("np", 1, 0);
340 TEST_JCC("o", 0x7fffffff, 0);
341 TEST_JCC("o", 0x7fffffff, -1);
343 TEST_JCC("no", 0x7fffffff, 0);
344 TEST_JCC("no", 0x7fffffff, -1);
347 TEST_JCC("s", 0, -1);
350 TEST_JCC("ns", 0, 1);
351 TEST_JCC("ns", 0, -1);
352 TEST_JCC("ns", 0, 0);
357 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)
359 #define CC_MASK (CC_O | CC_C)
363 #include "test-i386-muldiv.h"
366 #include "test-i386-muldiv.h"
368 void test_imulw2(int op0, int op1)
370 int res, s1, s0, flags;
380 : "=q" (res), "=g" (flags)
381 : "q" (s1), "0" (res), "1" (flags));
382 printf("%-10s A=%08x B=%08x R=%08x CC=%04x\n",
383 "imulw", s0, s1, res, flags & CC_MASK);
386 void test_imull2(int op0, int op1)
388 int res, s1, s0, flags;
398 : "=q" (res), "=g" (flags)
399 : "q" (s1), "0" (res), "1" (flags));
400 printf("%-10s A=%08x B=%08x R=%08x CC=%04x\n",
401 "imull", s0, s1, res, flags & CC_MASK);
404 #define TEST_IMUL_IM(size, size1, op0, op1)\
411 "imul" size " $" #op0 ", %" size1 "2, %" size1 "0\n\t" \
414 : "=r" (res), "=g" (flags)\
415 : "r" (op1), "1" (flags), "0" (res));\
416 printf("%-10s A=%08x B=%08x R=%08x CC=%04x\n",\
417 "imul" size, op0, op1, res, flags & CC_MASK);\
425 #include "test-i386-muldiv.h"
428 #include "test-i386-muldiv.h"
432 test_imulb(0x1234561d, 4);
434 test_imulb(0x80, 0x80);
435 test_imulb(0x10, 0x10);
437 test_imulw(0, 0x1234001d, 45);
438 test_imulw(0, 23, -45);
439 test_imulw(0, 0x8000, 0x8000);
440 test_imulw(0, 0x100, 0x100);
442 test_imull(0, 0x1234001d, 45);
443 test_imull(0, 23, -45);
444 test_imull(0, 0x80000000, 0x80000000);
445 test_imull(0, 0x10000, 0x10000);
447 test_mulb(0x1234561d, 4);
449 test_mulb(0x80, 0x80);
450 test_mulb(0x10, 0x10);
452 test_mulw(0, 0x1234001d, 45);
453 test_mulw(0, 23, -45);
454 test_mulw(0, 0x8000, 0x8000);
455 test_mulw(0, 0x100, 0x100);
457 test_mull(0, 0x1234001d, 45);
458 test_mull(0, 23, -45);
459 test_mull(0, 0x80000000, 0x80000000);
460 test_mull(0, 0x10000, 0x10000);
462 test_imulw2(0x1234001d, 45);
463 test_imulw2(23, -45);
464 test_imulw2(0x8000, 0x8000);
465 test_imulw2(0x100, 0x100);
467 test_imull2(0x1234001d, 45);
468 test_imull2(23, -45);
469 test_imull2(0x80000000, 0x80000000);
470 test_imull2(0x10000, 0x10000);
472 TEST_IMUL_IM("w", "w", 45, 0x1234);
473 TEST_IMUL_IM("w", "w", -45, 23);
474 TEST_IMUL_IM("w", "w", 0x8000, 0x80000000);
475 TEST_IMUL_IM("w", "w", 0x7fff, 0x1000);
477 TEST_IMUL_IM("l", "", 45, 0x1234);
478 TEST_IMUL_IM("l", "", -45, 23);
479 TEST_IMUL_IM("l", "", 0x8000, 0x80000000);
480 TEST_IMUL_IM("l", "", 0x7fff, 0x1000);
482 test_idivb(0x12341678, 0x127e);
483 test_idivb(0x43210123, -5);
484 test_idivb(0x12340004, -1);
486 test_idivw(0, 0x12345678, 12347);
487 test_idivw(0, -23223, -45);
488 test_idivw(0, 0x12348000, -1);
489 test_idivw(0x12343, 0x12345678, 0x81238567);
491 test_idivl(0, 0x12345678, 12347);
492 test_idivl(0, -233223, -45);
493 test_idivl(0, 0x80000000, -1);
494 test_idivl(0x12343, 0x12345678, 0x81234567);
496 test_divb(0x12341678, 0x127e);
497 test_divb(0x43210123, -5);
498 test_divb(0x12340004, -1);
500 test_divw(0, 0x12345678, 12347);
501 test_divw(0, -23223, -45);
502 test_divw(0, 0x12348000, -1);
503 test_divw(0x12343, 0x12345678, 0x81238567);
505 test_divl(0, 0x12345678, 12347);
506 test_divl(0, -233223, -45);
507 test_divl(0, 0x80000000, -1);
508 test_divl(0x12343, 0x12345678, 0x81234567);
511 #define TEST_BSX(op, size, op0)\
516 "movl $0x12345678, %0\n"\
517 #op " %" size "2, %" size "0 ; setz %b1" \
518 : "=r" (res), "=q" (resz)\
520 printf("%-10s A=%08x R=%08x %d\n", #op, val, res, resz);\
525 TEST_BSX(bsrw, "w", 0);
526 TEST_BSX(bsrw, "w", 0x12340128);
527 TEST_BSX(bsrl, "", 0);
528 TEST_BSX(bsrl, "", 0x00340128);
529 TEST_BSX(bsfw, "w", 0);
530 TEST_BSX(bsfw, "w", 0x12340128);
531 TEST_BSX(bsfl, "", 0);
532 TEST_BSX(bsfl, "", 0x00340128);
535 /**********************************************/
537 void test_fops(double a, double b)
539 printf("a=%f b=%f a+b=%f\n", a, b, a + b);
540 printf("a=%f b=%f a-b=%f\n", a, b, a - b);
541 printf("a=%f b=%f a*b=%f\n", a, b, a * b);
542 printf("a=%f b=%f a/b=%f\n", a, b, a / b);
543 printf("a=%f b=%f fmod(a, b)=%f\n", a, b, fmod(a, b));
544 printf("a=%f sqrt(a)=%f\n", a, sqrt(a));
545 printf("a=%f sin(a)=%f\n", a, sin(a));
546 printf("a=%f cos(a)=%f\n", a, cos(a));
547 printf("a=%f tan(a)=%f\n", a, tan(a));
548 printf("a=%f log(a)=%f\n", a, log(a));
549 printf("a=%f exp(a)=%f\n", a, exp(a));
550 printf("a=%f b=%f atan2(a, b)=%f\n", a, b, atan2(a, b));
551 /* just to test some op combining */
552 printf("a=%f asin(sin(a))=%f\n", a, asin(sin(a)));
553 printf("a=%f acos(cos(a))=%f\n", a, acos(cos(a)));
554 printf("a=%f atan(tan(a))=%f\n", a, atan(tan(a)));
558 void test_fcmp(double a, double b)
560 printf("(%f<%f)=%d\n",
562 printf("(%f<=%f)=%d\n",
564 printf("(%f==%f)=%d\n",
566 printf("(%f>%f)=%d\n",
568 printf("(%f<=%f)=%d\n",
572 /* test f(u)comi instruction */
578 printf("fcomi(%f %f)=%08x\n", a, b, eflags & (CC_Z | CC_P | CC_C));
582 void test_fcvt(double a)
595 printf("(float)%f = %f\n", a, fa);
596 printf("(long double)%f = %Lf\n", a, la);
597 printf("a=%016Lx\n", *(long long *)&a);
598 printf("la=%016Lx %04x\n", *(long long *)&la,
599 *(unsigned short *)((char *)(&la) + 8));
601 /* test all roundings */
602 asm volatile ("fstcw %0" : "=m" (fpuc));
604 asm volatile ("fldcw %0" : : "m" ((fpuc & ~0x0c00) | (i << 10)));
605 asm volatile ("fist %0" : "=m" (wa) : "t" (a));
606 asm volatile ("fistl %0" : "=m" (ia) : "t" (a));
607 asm volatile ("fistpll %0" : "=m" (lla) : "t" (a) : "st");
608 asm volatile ("frndint ; fstl %0" : "=m" (ra) : "t" (a));
609 asm volatile ("fldcw %0" : : "m" (fpuc));
610 printf("(short)a = %d\n", wa);
611 printf("(int)a = %d\n", ia);
612 printf("(int64_t)a = %Ld\n", lla);
613 printf("rint(a) = %f\n", ra);
618 asm("fld" #N : "=t" (a)); \
619 printf("fld" #N "= %f\n", a);
621 void test_fconst(void)
633 void test_fbcd(double a)
635 unsigned short bcd[5];
638 asm("fbstp %0" : "=m" (bcd[0]) : "t" (a) : "st");
639 asm("fbld %1" : "=t" (b) : "m" (bcd[0]));
640 printf("a=%f bcd=%04x%04x%04x%04x%04x b=%f\n",
641 a, bcd[4], bcd[3], bcd[2], bcd[1], bcd[0], b);
644 #define TEST_ENV(env, save, restore)\
646 memset((env), 0xaa, sizeof(*(env)));\
648 asm volatile ("fldl %0" : : "m" (dtab[i]));\
649 asm(save " %0\n" : : "m" (*(env)));\
650 asm(restore " %0\n": : "m" (*(env)));\
652 asm volatile ("fstpl %0" : "=m" (rtab[i]));\
654 printf("res[%d]=%f\n", i, rtab[i]);\
655 printf("fpuc=%04x fpus=%04x fptag=%04x\n",\
657 (env)->fpus & 0xff00,\
663 struct __attribute__((packed)) {
671 long double fpregs[8];
673 struct __attribute__((packed)) {
678 long double fpregs[8];
687 TEST_ENV(&float_env16, "data16 fnstenv", "data16 fldenv");
688 TEST_ENV(&float_env16, "data16 fnsave", "data16 frstor");
689 TEST_ENV(&float_env32, "fnstenv", "fldenv");
690 TEST_ENV(&float_env32, "fnsave", "frstor");
694 asm volatile ("fldl %0" : : "m" (dtab[i]));
695 asm volatile("ffree %st(2)");
696 asm volatile ("fnstenv %0\n" : : "m" (float_env32));
697 asm volatile ("fninit");
698 printf("fptag=%04x\n", float_env32.fptag);
702 #define TEST_FCMOV(a, b, eflags, CC)\
707 "fcmov" CC " %2, %0\n"\
709 : "0" (a), "u" (b), "g" (eflags));\
710 printf("fcmov%s eflags=0x%04x-> %f\n", \
714 void test_fcmov(void)
721 for(i = 0; i < 4; i++) {
727 TEST_FCMOV(a, b, eflags, "b");
728 TEST_FCMOV(a, b, eflags, "e");
729 TEST_FCMOV(a, b, eflags, "be");
730 TEST_FCMOV(a, b, eflags, "nb");
731 TEST_FCMOV(a, b, eflags, "ne");
732 TEST_FCMOV(a, b, eflags, "nbe");
734 TEST_FCMOV(a, b, 0, "u");
735 TEST_FCMOV(a, b, CC_P, "u");
736 TEST_FCMOV(a, b, 0, "nu");
737 TEST_FCMOV(a, b, CC_P, "nu");
740 void test_floats(void)
754 test_fbcd(1234567890123456);
755 test_fbcd(-123451234567890);
762 /**********************************************/
764 #define TEST_BCD(op, op0, cc_in, cc_mask)\
774 : "=a" (res), "=g" (flags)\
775 : "0" (res), "1" (flags));\
776 printf("%-10s A=%08x R=%08x CCIN=%04x CC=%04x\n",\
777 #op, op0, res, cc_in, flags & cc_mask);\
782 TEST_BCD(daa, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
783 TEST_BCD(daa, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
784 TEST_BCD(daa, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
785 TEST_BCD(daa, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
786 TEST_BCD(daa, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
787 TEST_BCD(daa, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
788 TEST_BCD(daa, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
789 TEST_BCD(daa, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
790 TEST_BCD(daa, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
791 TEST_BCD(daa, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
792 TEST_BCD(daa, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
793 TEST_BCD(daa, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
794 TEST_BCD(daa, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
796 TEST_BCD(das, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
797 TEST_BCD(das, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
798 TEST_BCD(das, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
799 TEST_BCD(das, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
800 TEST_BCD(das, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
801 TEST_BCD(das, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
802 TEST_BCD(das, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
803 TEST_BCD(das, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
804 TEST_BCD(das, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
805 TEST_BCD(das, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
806 TEST_BCD(das, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
807 TEST_BCD(das, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
808 TEST_BCD(das, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
810 TEST_BCD(aaa, 0x12340205, CC_A, (CC_C | CC_A));
811 TEST_BCD(aaa, 0x12340306, CC_A, (CC_C | CC_A));
812 TEST_BCD(aaa, 0x1234040a, CC_A, (CC_C | CC_A));
813 TEST_BCD(aaa, 0x123405fa, CC_A, (CC_C | CC_A));
814 TEST_BCD(aaa, 0x12340205, 0, (CC_C | CC_A));
815 TEST_BCD(aaa, 0x12340306, 0, (CC_C | CC_A));
816 TEST_BCD(aaa, 0x1234040a, 0, (CC_C | CC_A));
817 TEST_BCD(aaa, 0x123405fa, 0, (CC_C | CC_A));
819 TEST_BCD(aas, 0x12340205, CC_A, (CC_C | CC_A));
820 TEST_BCD(aas, 0x12340306, CC_A, (CC_C | CC_A));
821 TEST_BCD(aas, 0x1234040a, CC_A, (CC_C | CC_A));
822 TEST_BCD(aas, 0x123405fa, CC_A, (CC_C | CC_A));
823 TEST_BCD(aas, 0x12340205, 0, (CC_C | CC_A));
824 TEST_BCD(aas, 0x12340306, 0, (CC_C | CC_A));
825 TEST_BCD(aas, 0x1234040a, 0, (CC_C | CC_A));
826 TEST_BCD(aas, 0x123405fa, 0, (CC_C | CC_A));
828 TEST_BCD(aam, 0x12340547, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
829 TEST_BCD(aad, 0x12340407, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
832 #define TEST_XCHG(op, size, opconst)\
837 asm(#op " %" size "0, %" size "1" \
838 : "=q" (op0), opconst (op1) \
839 : "0" (op0), "1" (op1));\
840 printf("%-10s A=%08x B=%08x\n",\
844 #define TEST_CMPXCHG(op, size, opconst, eax)\
849 asm(#op " %" size "0, %" size "1" \
850 : "=q" (op0), opconst (op1) \
851 : "0" (op0), "1" (op1), "a" (eax));\
852 printf("%-10s EAX=%08x A=%08x C=%08x\n",\
853 #op, eax, op0, op1);\
858 TEST_XCHG(xchgl, "", "=q");
859 TEST_XCHG(xchgw, "w", "=q");
860 TEST_XCHG(xchgb, "b", "=q");
862 TEST_XCHG(xchgl, "", "=m");
863 TEST_XCHG(xchgw, "w", "=m");
864 TEST_XCHG(xchgb, "b", "=m");
866 TEST_XCHG(xaddl, "", "=q");
867 TEST_XCHG(xaddw, "w", "=q");
868 TEST_XCHG(xaddb, "b", "=q");
873 asm("xaddl %1, %0" : "=r" (res) : "0" (res));
874 printf("xaddl same res=%08x\n", res);
877 TEST_XCHG(xaddl, "", "=m");
878 TEST_XCHG(xaddw, "w", "=m");
879 TEST_XCHG(xaddb, "b", "=m");
881 TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfbca7654);
882 TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfbca7654);
883 TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfbca7654);
885 TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfffefdfc);
886 TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfffefdfc);
887 TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfffefdfc);
889 TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfbca7654);
890 TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfbca7654);
891 TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfbca7654);
893 TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfffefdfc);
894 TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfffefdfc);
895 TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfffefdfc);
898 uint64_t op0, op1, op2;
901 for(i = 0; i < 2; i++) {
902 op0 = 0x123456789abcd;
904 op1 = 0xfbca765423456;
907 op2 = 0x6532432432434;
911 : "=A" (op0), "=m" (op1), "=g" (eflags)
912 : "0" (op0), "m" (op1), "b" ((int)op2), "c" ((int)(op2 >> 32)));
913 printf("cmpxchg8b: op0=%016llx op1=%016llx CC=%02x\n",
914 op0, op1, eflags & CC_Z);
919 /**********************************************/
920 /* segmentation tests */
923 #include <linux/unistd.h>
924 #include <linux/version.h>
926 _syscall3(int, modify_ldt, int, func, void *, ptr, unsigned long, bytecount)
928 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 5, 66)
929 #define modify_ldt_ldt_s user_desc
932 uint8_t seg_data1[4096];
933 uint8_t seg_data2[4096];
935 #define MK_SEL(n) (((n) << 3) | 7)
937 #define TEST_LR(op, size, seg, mask)\
941 asm (op " %" size "2, %" size "0\n" \
946 : "=r" (res), "=r" (res2) : "m" (seg), "0" (res));\
947 printf(op ": Z=%d %08x\n", res2, res & ~(mask));\
950 /* NOTE: we use Linux modify_ldt syscall */
953 struct modify_ldt_ldt_s ldt;
954 long long ldt_table[3];
960 } __attribute__((packed)) segoff;
962 ldt.entry_number = 1;
963 ldt.base_addr = (unsigned long)&seg_data1;
964 ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12;
966 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
967 ldt.read_exec_only = 0;
968 ldt.limit_in_pages = 1;
969 ldt.seg_not_present = 0;
971 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
973 ldt.entry_number = 2;
974 ldt.base_addr = (unsigned long)&seg_data2;
975 ldt.limit = (sizeof(seg_data2) + 0xfff) >> 12;
977 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
978 ldt.read_exec_only = 0;
979 ldt.limit_in_pages = 1;
980 ldt.seg_not_present = 0;
982 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
984 modify_ldt(0, &ldt_table, sizeof(ldt_table)); /* read ldt entries */
989 printf("%d: %016Lx\n", i, ldt_table[i]);
992 /* do some tests with fs or gs */
993 asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1)));
998 asm volatile ("fs movzbl 0x1, %0" : "=r" (res));
999 printf("FS[1] = %02x\n", res);
1001 asm volatile ("pushl %%gs\n"
1003 "gs movzbl 0x1, %0\n"
1007 printf("GS[1] = %02x\n", res);
1009 /* tests with ds/ss (implicit segment case) */
1011 asm volatile ("pushl %%ebp\n\t"
1014 "movl %3, %%ebp\n\t"
1015 "movzbl 0x1, %0\n\t"
1016 "movzbl (%%ebp), %1\n\t"
1019 : "=r" (res), "=r" (res2)
1020 : "r" (MK_SEL(1)), "r" (&tmp));
1021 printf("DS[1] = %02x\n", res);
1022 printf("SS[tmp] = %02x\n", res2);
1024 segoff.seg = MK_SEL(2);
1025 segoff.offset = 0xabcdef12;
1026 asm volatile("lfs %2, %0\n\t"
1028 : "=r" (res), "=g" (res2)
1030 printf("FS:reg = %04x:%08x\n", res2, res);
1032 TEST_LR("larw", "w", MK_SEL(2), 0x0100);
1033 TEST_LR("larl", "", MK_SEL(2), 0x0100);
1034 TEST_LR("lslw", "w", MK_SEL(2), 0);
1035 TEST_LR("lsll", "", MK_SEL(2), 0);
1037 TEST_LR("larw", "w", 0xfff8, 0);
1038 TEST_LR("larl", "", 0xfff8, 0);
1039 TEST_LR("lslw", "w", 0xfff8, 0);
1040 TEST_LR("lsll", "", 0xfff8, 0);
1043 /* 16 bit code test */
1044 extern char code16_start, code16_end;
1045 extern char code16_func1;
1046 extern char code16_func2;
1047 extern char code16_func3;
1049 void test_code16(void)
1051 struct modify_ldt_ldt_s ldt;
1054 /* build a code segment */
1055 ldt.entry_number = 1;
1056 ldt.base_addr = (unsigned long)&code16_start;
1057 ldt.limit = &code16_end - &code16_start;
1059 ldt.contents = MODIFY_LDT_CONTENTS_CODE;
1060 ldt.read_exec_only = 0;
1061 ldt.limit_in_pages = 0;
1062 ldt.seg_not_present = 0;
1064 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1066 /* call the first function */
1067 asm volatile ("lcall %1, %2"
1069 : "i" (MK_SEL(1)), "i" (&code16_func1): "memory", "cc");
1070 printf("func1() = 0x%08x\n", res);
1071 asm volatile ("lcall %2, %3"
1072 : "=a" (res), "=c" (res2)
1073 : "i" (MK_SEL(1)), "i" (&code16_func2): "memory", "cc");
1074 printf("func2() = 0x%08x spdec=%d\n", res, res2);
1075 asm volatile ("lcall %1, %2"
1077 : "i" (MK_SEL(1)), "i" (&code16_func3): "memory", "cc");
1078 printf("func3() = 0x%08x\n", res);
1081 extern char func_lret32;
1082 extern char func_iret32;
1084 void test_misc(void)
1089 for(i=0;i<256;i++) table[i] = 256 - i;
1091 asm ("xlat" : "=a" (res) : "b" (table), "0" (res));
1092 printf("xlat: EAX=%08x\n", res);
1094 asm volatile ("pushl %%cs ; call %1"
1096 : "m" (func_lret32): "memory", "cc");
1097 printf("func_lret32=%x\n", res);
1099 asm volatile ("pushfl ; pushl %%cs ; call %1"
1101 : "m" (func_iret32): "memory", "cc");
1102 printf("func_iret32=%x\n", res);
1104 /* specific popl test */
1105 asm volatile ("pushl $12345432 ; pushl $0x9abcdef ; popl (%%esp) ; popl %0"
1107 printf("popl esp=%x\n", res);
1109 /* specific popw test */
1110 asm volatile ("pushl $12345432 ; pushl $0x9abcdef ; popw (%%esp) ; addl $2, %%esp ; popl %0"
1112 printf("popw esp=%x\n", res);
1115 uint8_t str_buffer[4096];
1117 #define TEST_STRING1(OP, size, DF, REP)\
1119 int esi, edi, eax, ecx, eflags;\
1121 esi = (long)(str_buffer + sizeof(str_buffer) / 2);\
1122 edi = (long)(str_buffer + sizeof(str_buffer) / 2) + 16;\
1126 asm volatile ("pushl $0\n\t"\
1129 REP #OP size "\n\t"\
1133 : "=S" (esi), "=D" (edi), "=a" (eax), "=c" (ecx), "=g" (eflags)\
1134 : "0" (esi), "1" (edi), "2" (eax), "3" (ecx));\
1135 printf("%-10s ESI=%08x EDI=%08x EAX=%08x ECX=%08x EFL=%04x\n",\
1136 REP #OP size, esi, edi, eax, ecx,\
1137 eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));\
1140 #define TEST_STRING(OP, REP)\
1141 TEST_STRING1(OP, "b", "", REP);\
1142 TEST_STRING1(OP, "w", "", REP);\
1143 TEST_STRING1(OP, "l", "", REP);\
1144 TEST_STRING1(OP, "b", "std", REP);\
1145 TEST_STRING1(OP, "w", "std", REP);\
1146 TEST_STRING1(OP, "l", "std", REP)
1148 void test_string(void)
1151 for(i = 0;i < sizeof(str_buffer); i++)
1152 str_buffer[i] = i + 0x56;
1153 TEST_STRING(stos, "");
1154 TEST_STRING(stos, "rep ");
1155 TEST_STRING(lods, ""); /* to verify stos */
1156 TEST_STRING(lods, "rep ");
1157 TEST_STRING(movs, "");
1158 TEST_STRING(movs, "rep ");
1159 TEST_STRING(lods, ""); /* to verify stos */
1161 /* XXX: better tests */
1162 TEST_STRING(scas, "");
1163 TEST_STRING(scas, "repz ");
1164 TEST_STRING(scas, "repnz ");
1165 TEST_STRING(cmps, "");
1166 TEST_STRING(cmps, "repz ");
1167 TEST_STRING(cmps, "repnz ");
1172 static inline void set_bit(uint8_t *a, unsigned int bit)
1174 a[bit / 8] |= (1 << (bit % 8));
1177 static inline uint8_t *seg_to_linear(unsigned int seg, unsigned int reg)
1179 return (uint8_t *)((seg << 4) + (reg & 0xffff));
1182 static inline void pushw(struct vm86_regs *r, int val)
1184 r->esp = (r->esp & ~0xffff) | ((r->esp - 2) & 0xffff);
1185 *(uint16_t *)seg_to_linear(r->ss, r->esp) = val;
1188 #undef __syscall_return
1189 #define __syscall_return(type, res) \
1191 return (type) (res); \
1194 _syscall2(int, vm86, int, func, struct vm86plus_struct *, v86)
1196 extern char vm86_code_start;
1197 extern char vm86_code_end;
1199 #define VM86_CODE_CS 0x100
1200 #define VM86_CODE_IP 0x100
1202 void test_vm86(void)
1204 struct vm86plus_struct ctx;
1205 struct vm86_regs *r;
1209 vm86_mem = mmap((void *)0x00000000, 0x110000,
1210 PROT_WRITE | PROT_READ | PROT_EXEC,
1211 MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0);
1212 if (vm86_mem == MAP_FAILED) {
1213 printf("ERROR: could not map vm86 memory");
1216 memset(&ctx, 0, sizeof(ctx));
1218 /* init basic registers */
1220 r->eip = VM86_CODE_IP;
1229 r->eflags = VIF_MASK;
1231 /* move code to proper address. We use the same layout as a .com
1233 memcpy(vm86_mem + (VM86_CODE_CS << 4) + VM86_CODE_IP,
1234 &vm86_code_start, &vm86_code_end - &vm86_code_start);
1236 /* mark int 0x21 as being emulated */
1237 set_bit((uint8_t *)&ctx.int_revectored, 0x21);
1240 ret = vm86(VM86_ENTER, &ctx);
1241 switch(VM86_TYPE(ret)) {
1246 int_num = VM86_ARG(ret);
1247 if (int_num != 0x21)
1249 ah = (r->eax >> 8) & 0xff;
1251 case 0x00: /* exit */
1253 case 0x02: /* write char */
1259 case 0x09: /* write string */
1262 ptr = seg_to_linear(r->ds, r->edx);
1269 r->eax = (r->eax & ~0xff) | '$';
1272 case 0xff: /* extension: write eflags number in edx */
1274 #ifndef LINUX_VM86_IOPL_FIX
1277 printf("%08x\n", v);
1281 printf("unsupported int 0x%02x\n", int_num);
1287 /* a signal came, we just ignore that */
1292 printf("ERROR: unhandled vm86 return code (0x%x)\n", ret);
1297 printf("VM86 end\n");
1298 munmap(vm86_mem, 0x110000);
1301 /* exception tests */
1313 #define REG_TRAPNO TRAPNO
1321 void sig_handler(int sig, siginfo_t *info, void *puc)
1323 struct ucontext *uc = puc;
1325 printf("si_signo=%d si_errno=%d si_code=%d",
1326 info->si_signo, info->si_errno, info->si_code);
1327 printf(" si_addr=0x%08lx",
1328 (unsigned long)info->si_addr);
1331 printf("trapno=0x%02x err=0x%08x",
1332 uc->uc_mcontext.gregs[REG_TRAPNO],
1333 uc->uc_mcontext.gregs[REG_ERR]);
1334 printf(" EIP=0x%08x", uc->uc_mcontext.gregs[REG_EIP]);
1336 longjmp(jmp_env, 1);
1339 void test_exceptions(void)
1341 struct modify_ldt_ldt_s ldt;
1342 struct sigaction act;
1345 act.sa_sigaction = sig_handler;
1346 sigemptyset(&act.sa_mask);
1347 act.sa_flags = SA_SIGINFO;
1348 sigaction(SIGFPE, &act, NULL);
1349 sigaction(SIGILL, &act, NULL);
1350 sigaction(SIGSEGV, &act, NULL);
1351 sigaction(SIGBUS, &act, NULL);
1352 sigaction(SIGTRAP, &act, NULL);
1354 /* test division by zero reporting */
1355 printf("DIVZ exception:\n");
1356 if (setjmp(jmp_env) == 0) {
1357 /* now divide by zero */
1362 printf("BOUND exception:\n");
1363 if (setjmp(jmp_env) == 0) {
1364 /* bound exception */
1367 asm volatile ("bound %0, %1" : : "r" (11), "m" (tab[0]));
1370 printf("segment exceptions:\n");
1371 if (setjmp(jmp_env) == 0) {
1372 /* load an invalid segment */
1373 asm volatile ("movl %0, %%fs" : : "r" ((0x1234 << 3) | 1));
1375 if (setjmp(jmp_env) == 0) {
1376 /* null data segment is valid */
1377 asm volatile ("movl %0, %%fs" : : "r" (3));
1378 /* null stack segment */
1379 asm volatile ("movl %0, %%ss" : : "r" (3));
1382 ldt.entry_number = 1;
1383 ldt.base_addr = (unsigned long)&seg_data1;
1384 ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12;
1386 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
1387 ldt.read_exec_only = 0;
1388 ldt.limit_in_pages = 1;
1389 ldt.seg_not_present = 1;
1391 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1393 if (setjmp(jmp_env) == 0) {
1394 /* segment not present */
1395 asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1)));
1398 /* test SEGV reporting */
1399 printf("PF exception:\n");
1400 if (setjmp(jmp_env) == 0) {
1402 /* we add a nop to test a weird PC retrieval case */
1403 asm volatile ("nop");
1404 /* now store in an invalid address */
1405 *(char *)0x1234 = 1;
1408 /* test SEGV reporting */
1409 printf("PF exception:\n");
1410 if (setjmp(jmp_env) == 0) {
1412 /* read from an invalid address */
1413 v1 = *(char *)0x1234;
1416 /* test illegal instruction reporting */
1417 printf("UD2 exception:\n");
1418 if (setjmp(jmp_env) == 0) {
1419 /* now execute an invalid instruction */
1420 asm volatile("ud2");
1422 printf("lock nop exception:\n");
1423 if (setjmp(jmp_env) == 0) {
1424 /* now execute an invalid instruction */
1425 asm volatile("lock nop");
1428 printf("INT exception:\n");
1429 if (setjmp(jmp_env) == 0) {
1430 asm volatile ("int $0xfd");
1432 if (setjmp(jmp_env) == 0) {
1433 asm volatile ("int $0x01");
1435 if (setjmp(jmp_env) == 0) {
1436 asm volatile (".byte 0xcd, 0x03");
1438 if (setjmp(jmp_env) == 0) {
1439 asm volatile ("int $0x04");
1441 if (setjmp(jmp_env) == 0) {
1442 asm volatile ("int $0x05");
1445 printf("INT3 exception:\n");
1446 if (setjmp(jmp_env) == 0) {
1447 asm volatile ("int3");
1450 printf("CLI exception:\n");
1451 if (setjmp(jmp_env) == 0) {
1452 asm volatile ("cli");
1455 printf("STI exception:\n");
1456 if (setjmp(jmp_env) == 0) {
1457 asm volatile ("cli");
1460 printf("INTO exception:\n");
1461 if (setjmp(jmp_env) == 0) {
1462 /* overflow exception */
1463 asm volatile ("addl $1, %0 ; into" : : "r" (0x7fffffff));
1466 printf("OUTB exception:\n");
1467 if (setjmp(jmp_env) == 0) {
1468 asm volatile ("outb %%al, %%dx" : : "d" (0x4321), "a" (0));
1471 printf("INB exception:\n");
1472 if (setjmp(jmp_env) == 0) {
1473 asm volatile ("inb %%dx, %%al" : "=a" (val) : "d" (0x4321));
1476 printf("REP OUTSB exception:\n");
1477 if (setjmp(jmp_env) == 0) {
1478 asm volatile ("rep outsb" : : "d" (0x4321), "S" (tab), "c" (1));
1481 printf("REP INSB exception:\n");
1482 if (setjmp(jmp_env) == 0) {
1483 asm volatile ("rep insb" : : "d" (0x4321), "D" (tab), "c" (1));
1486 printf("HLT exception:\n");
1487 if (setjmp(jmp_env) == 0) {
1488 asm volatile ("hlt");
1491 printf("single step exception:\n");
1493 if (setjmp(jmp_env) == 0) {
1494 asm volatile ("pushf\n"
1495 "orl $0x00100, (%%esp)\n"
1497 "movl $0xabcd, %0\n"
1498 "movl $0x0, %0\n" : "=m" (val) : : "cc", "memory");
1500 printf("val=0x%x\n", val);
1503 /* specific precise single step test */
1504 void sig_trap_handler(int sig, siginfo_t *info, void *puc)
1506 struct ucontext *uc = puc;
1507 printf("EIP=0x%08x\n", uc->uc_mcontext.gregs[REG_EIP]);
1510 const uint8_t sstep_buf1[4] = { 1, 2, 3, 4};
1511 uint8_t sstep_buf2[4];
1513 void test_single_step(void)
1515 struct sigaction act;
1520 act.sa_sigaction = sig_trap_handler;
1521 sigemptyset(&act.sa_mask);
1522 act.sa_flags = SA_SIGINFO;
1523 sigaction(SIGTRAP, &act, NULL);
1524 asm volatile ("pushf\n"
1525 "orl $0x00100, (%%esp)\n"
1527 "movl $0xabcd, %0\n"
1536 /* movsb: the single step should stop at each movsb iteration */
1537 "movl $sstep_buf1, %%esi\n"
1538 "movl $sstep_buf2, %%edi\n"
1546 /* cmpsb: the single step should stop at each cmpsb iteration */
1547 "movl $sstep_buf1, %%esi\n"
1548 "movl $sstep_buf2, %%edi\n"
1554 /* getpid() syscall: single step should skip one
1560 /* when modifying SS, trace is not done on the next
1562 "movl %%ss, %%ecx\n"
1563 "movl %%ecx, %%ss\n"
1566 "movl %%ecx, %%ss\n"
1577 "andl $~0x00100, (%%esp)\n"
1581 : "cc", "memory", "eax", "ecx", "esi", "edi");
1582 printf("val=%d\n", val);
1583 for(i = 0; i < 4; i++)
1584 printf("sstep_buf2[%d] = %d\n", i, sstep_buf2[i]);
1587 /* self modifying code test */
1589 0xb8, 0x1, 0x00, 0x00, 0x00, /* movl $1, %eax */
1594 "movl 4(%esp), %eax\n"
1595 "movl %eax, smc_patch_addr2 + 1\n"
1604 "smc_patch_addr2:\n"
1608 typedef int FuncType(void);
1609 extern int smc_code2(int);
1610 void test_self_modifying_code(void)
1614 printf("self modifying code:\n");
1615 printf("func1 = 0x%x\n", ((FuncType *)code)());
1616 for(i = 2; i <= 4; i++) {
1618 printf("func%d = 0x%x\n", i, ((FuncType *)code)());
1621 /* more difficult test : the modified code is just after the
1622 modifying instruction. It is forbidden in Intel specs, but it
1623 is used by old DOS programs */
1624 for(i = 2; i <= 4; i++) {
1625 printf("smc_code2(%d) = %d\n", i, smc_code2(i));
1629 int enter_stack[4096];
1631 #define TEST_ENTER(size, stack_type, level)\
1633 int esp_save, esp_val, ebp_val, ebp_save, i;\
1634 stack_type *ptr, *stack_end, *stack_ptr;\
1635 memset(enter_stack, 0, sizeof(enter_stack));\
1636 stack_end = stack_ptr = (stack_type *)(enter_stack + 4096);\
1637 ebp_val = (long)stack_ptr;\
1640 esp_val = (long)stack_ptr;\
1641 asm("movl %%esp, %[esp_save]\n"\
1642 "movl %%ebp, %[ebp_save]\n"\
1643 "movl %[esp_val], %%esp\n"\
1644 "movl %[ebp_val], %%ebp\n"\
1645 "enter" size " $12, $" #level "\n"\
1646 "movl %%esp, %[esp_val]\n"\
1647 "movl %%ebp, %[ebp_val]\n"\
1648 "movl %[esp_save], %%esp\n"\
1649 "movl %[ebp_save], %%ebp\n"\
1650 : [esp_save] "=r" (esp_save),\
1651 [ebp_save] "=r" (ebp_save),\
1652 [esp_val] "=r" (esp_val),\
1653 [ebp_val] "=r" (ebp_val)\
1654 : "[esp_val]" (esp_val),\
1655 "[ebp_val]" (ebp_val));\
1656 printf("level=%d:\n", level);\
1657 printf("esp_val=0x%08lx\n", esp_val - (long)stack_end);\
1658 printf("ebp_val=0x%08lx\n", ebp_val - (long)stack_end);\
1659 for(ptr = (stack_type *)esp_val; ptr < stack_end; ptr++)\
1660 printf("%08x\n", ptr[0]);\
1663 static void test_enter(void)
1665 TEST_ENTER("l", uint32_t, 0);
1666 TEST_ENTER("l", uint32_t, 1);
1667 TEST_ENTER("l", uint32_t, 2);
1668 TEST_ENTER("l", uint32_t, 31);
1670 TEST_ENTER("w", uint16_t, 0);
1671 TEST_ENTER("w", uint16_t, 1);
1672 TEST_ENTER("w", uint16_t, 2);
1673 TEST_ENTER("w", uint16_t, 31);
1677 static void *call_end __init_call = NULL;
1679 int main(int argc, char **argv)
1684 ptr = &call_start + 1;
1685 while (*ptr != NULL) {
1702 test_self_modifying_code();