1663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng#include <stdint.h> 2663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng#include <inttypes.h> 3663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng#include <stdlib.h> 4663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng#include <string.h> 5663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng#include <stdio.h> 6663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng#include "../../../none/tests/s390x/opcodes.h" 7663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 8663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng/* Define various input buffers. */ 9663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 10663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng/* U+0000 to U+d7ff: Result is 2 bytes for each uint32_t 11663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng U+dc00 to U+ffff: Result is 2 bytes for each uint32_t */ 12663860b1408516d02ebfcb3a9999a134e6cfb223Ben Chenguint32_t pattern2[] = { 13663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 0x0000, 0xd7ff, /* corner cases */ 14663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 0xdc00, 0xffff, /* corner cases */ 15663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 0xabba, 0xf00d, 0xd00f, 0x1234 /* misc */ 16663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng}; 17663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 18663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng/* U+00010000 to U+0010ffff: Result is 4 bytes for each uint32_t */ 19663860b1408516d02ebfcb3a9999a134e6cfb223Ben Chenguint32_t pattern4[] = { 20663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 0x00010000, 0x0010ffff, /* corner cases */ 21663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 0x00010123, 0x00023456, 0x000789ab, 0x00100000 /* misc */ 22663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng}; 23663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 24663860b1408516d02ebfcb3a9999a134e6cfb223Ben Chengstatic void 25663860b1408516d02ebfcb3a9999a134e6cfb223Ben Chengdo_cu42(uint16_t *dst, uint64_t dst_len, uint32_t *src, uint64_t src_len) 26663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng{ 27663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* build up the register pairs */ 28663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng register uint32_t *source asm("4") = src; 29663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng register uint64_t source_len asm("5") = src_len; 30663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng register uint16_t *dest asm("2") = dst; 31663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng register uint64_t dest_len asm("3") = dst_len; 32663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 33663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng asm volatile( 34663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng CU42(2,4) 35663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng : "+d"(dest), "+d"(source), "+d"(source_len), "+d"(dest_len) 36663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng : 37663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng : "memory", "cc"); 38663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng} 39663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 40663860b1408516d02ebfcb3a9999a134e6cfb223Ben Chengint main() 41663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng{ 42663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /*------------------------------------------------------------*/ 43663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Write to a too small buffer */ 44663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /*------------------------------------------------------------*/ 45663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 46663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Write 2 bytes into buffer of length 1 */ 47663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(malloc(1), 10, pattern2, 4); // complaint (2 bytes) 48663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 49663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Write 2 bytes into buffer of length 2 */ 50663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(malloc(2), 10, pattern2, 4); // no complaint 51663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 52663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Write 4 bytes into buffer of length 1 */ 53663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(malloc(1), 10, pattern4, 4); // complaint (4 bytes) 54663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 55663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Write 4 bytes into buffer of length 2 */ 56663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(malloc(2), 10, pattern4, 4); // complaint (4 bytes) 57663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 58663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Write 4 bytes into buffer of length 3 */ 59663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(malloc(3), 10, pattern4, 4); // complaint (4 bytes) 60663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 61663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Write 4 bytes into buffer of length 4 */ 62663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(malloc(4), 10, pattern4, 4); // no complaint 63663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 64663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /*------------------------------------------------------------*/ 65663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Read uninitialised data */ 66663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /*------------------------------------------------------------*/ 67663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng uint16_t buf[100]; 68663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng uint8_t *input; 69663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 70663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Input buffer is completely uninitialised */ 71663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input = malloc(10); 72663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(buf, sizeof buf, (void *)input, 4); // complaint 73663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 74663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Read 4 bytes from input buffer. First byte is uninitialised */ 75663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input = malloc(10); 76663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input[1] = input[2] = input[3] = 0x0; 77663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(buf, sizeof buf, (void *)input, 4); // complaint 78663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 79663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Read 4 bytes from input buffer. Second byte is uninitialised */ 80663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input = malloc(10); 81663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input[0] = input[2] = input[3] = 0x0; 82663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(buf, sizeof buf, (void *)input, 4); // complaint 83663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 84663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Read 4 bytes from input buffer. Third byte is uninitialised */ 85663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input = malloc(10); 86663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input[0] = input[1] = input[3] = 0x0; 87663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(buf, sizeof buf, (void *)input, 4); // complaint 88663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 89663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Read 4 bytes from input buffer. Fourth byte is uninitialised */ 90663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input = malloc(10); 91663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input[0] = input[1] = input[2] = 0x0; 92663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(buf, sizeof buf, (void *)input, 4); // complaint 93663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 94663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Read 4 bytes from input buffer. All bytes are initialised */ 95663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input = malloc(10); 96663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng memset(input, 0, 4); 97663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(buf, sizeof buf, (void *)input, 4); // no complaint 98663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 99663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Read 8 bytes from input buffer. This iterates once. In the 1st 100663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng iteration all input bytes are initialised in the 2nd iteration all 101663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input bytes are uninitialised. */ 102663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng input = malloc(10); 103663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng memset(input, 0, 4); 104663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng do_cu42(buf, sizeof buf, (void *)input, 8); // complaint 105663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 106663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 107663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng /* Write to NULL */ 108663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng // do_cu42(NULL, 10, pattern1, sizeof pattern1); // complaint 109663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng 110663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng return 0; 111663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng} 112