74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
// This is a personal academic project. Dear PVS-Studio, please check it.
|
|
// PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
|
|
#include "test_mm.h"
|
|
|
|
void *memset(void *destination, int32_t c, uint64_t length);
|
|
|
|
typedef struct MM_rq{
|
|
void *address;
|
|
uint32_t size;
|
|
} mm_rq;
|
|
|
|
static uint32_t m_z = 362436069;
|
|
static uint32_t m_w = 521288629;
|
|
|
|
uint32_t GetUint(){
|
|
m_z = 36969 * (m_z & 65535) + (m_z >> 16);
|
|
m_w = 18000 * (m_w & 65535) + (m_w >> 16);
|
|
return (m_z << 16) + m_w;
|
|
}
|
|
|
|
uint32_t GetUniform(uint32_t max){
|
|
uint32_t u = GetUint();
|
|
return (u + 1.0) * 2.328306435454494e-10 * max;
|
|
}
|
|
|
|
uint8_t memcheck(void *start, uint8_t value, uint32_t size){
|
|
uint8_t *p = (uint8_t *) start;
|
|
uint32_t i;
|
|
|
|
for (i = 0; i < size; i++, p++)
|
|
if (*p != value)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void test_mm(int argc, char ** argv){
|
|
mm_rq mm_rqs[MAX_BLOCKS];
|
|
uint8_t rq;
|
|
uint32_t total;
|
|
|
|
while (1){
|
|
rq = 0;
|
|
total = 0;
|
|
|
|
while(rq < MAX_BLOCKS && total < MAX_MEMORY){
|
|
mm_rqs[rq].size = GetUniform(MAX_MEMORY - total - 1) + 1;
|
|
mm_rqs[rq].address = sys_malloc(mm_rqs[rq].size);
|
|
//TODO: check if NULL
|
|
total += mm_rqs[rq].size;
|
|
rq++;
|
|
}
|
|
|
|
// Set
|
|
uint32_t i;
|
|
for (i = 0; i < rq; i++)
|
|
if (mm_rqs[i].address != NULL)
|
|
memset(mm_rqs[i].address, i, mm_rqs[i].size);
|
|
|
|
// Check
|
|
for (i = 0; i < rq; i++)
|
|
if (mm_rqs[i].address != NULL)
|
|
if(!memcheck(mm_rqs[i].address, i, mm_rqs[i].size))
|
|
printStringLen("ERROR!\n", 8);
|
|
|
|
// Free
|
|
for (i = 0; i < rq; i++)
|
|
if (mm_rqs[i].address != NULL)
|
|
sys_free(mm_rqs[i].address);
|
|
}
|
|
|
|
sys_exit();
|
|
}
|