100 lines
1.8 KiB
C
100 lines
1.8 KiB
C
#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <errno.h>
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#include <sys/stat.h>
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#define BUFFER_SIZE (512)
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#define TRACE (*(unsigned char *)0x40000000)
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extern int errno;
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int _write(int file, const char *ptr, int len) {
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int x;
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for (x = 0; x < len; x++) {
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TRACE = *ptr++;
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}
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return (len);
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}
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int _read (int file, char *ptr, int len) {
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return 0;
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}
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int _close (int file) {
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errno = EBADF;
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return -1;
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}
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int _fstat (int file, struct stat *st) {
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st->st_mode = S_IFCHR;
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return 0;
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}
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int _isatty (int file) {
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return 1;
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}
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int _lseek (int file, int offset, int whence) {
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return 0;
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}
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int main(void) {
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uint16_t *buffA, *buffB;
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bool test_ok = true;
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uint8_t *buffC;
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printf("Malloc Test\n");
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printf("buffA: %p\n", (void *) buffA);
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printf("buffB: %p\n", (void *) buffB);
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printf("buffC: %p\n", (void *) buffC);
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buffA = malloc(BUFFER_SIZE * sizeof(uint16_t));
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buffB = malloc(BUFFER_SIZE * sizeof(uint16_t));
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printf("buffA: %p\n", (void *) buffA);
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printf("buffB: %p\n", (void *) buffB);
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printf("buffC: %p\n", (void *) buffC);
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if ( (buffA == NULL ) || (buffB == NULL) ) {
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printf("Error malloc\n");
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}
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for(int i=0;i<BUFFER_SIZE;i++) {
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buffA[i] = i;
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}
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memcpy(buffB, buffA, BUFFER_SIZE * sizeof(uint16_t));
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for(int i=0;i<BUFFER_SIZE;i++) {
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if (buffA[i] != buffB[i]) {
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printf("Error at postion %d\n", i);
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test_ok = false;
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break;
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}
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}
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free(buffA);
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free(buffB);
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printf("buffA: %p\n", (void *) buffA);
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printf("buffB: %p\n", (void *) buffB);
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printf("buffC: %p\n", (void *) buffC);
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/* buffC should reuse address previously used by buffA (?) */
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buffC = malloc(512);
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printf("buffC: %p\n", (void *) buffC);
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if (test_ok == true) {
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printf("Test were OK\n");
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}
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asm volatile ("ecall");
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return 0;
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}
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