pic是否支持malloc free

laomujiwd

我用了一块pic16系列做了一个是否支持malloc的实验，代码很简单
#include<stdlib.h>
void main(void)
{
        int *p=(int *)malloc(sizeof(int ));
        if(p!=NULL)
        {
                free(p);
        }       
       
}

但是编译出现如下错误：
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 147. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 85. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 113. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 115. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 116. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 117. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 118. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 119. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 126. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\malloc.c; 130. can't generate code for this expression
Error   [712] C:\Program Files\HI-TECH Software\PICC\PRO\9.65\sources\memcpy.c; 22. can't generate code for this expression
Advisory[1] too many errors (11)
请高人指教？

Cindinx

回复 1# laomujiwd


    malloc和free是需要作業系統支援才能調用的系統函數, pic單片機上如果使用了uC-OS這樣的嵌入式作業系統, 并且增加了記憶體管理模塊，也許能使用malloc吧