为什么我的malloc导致在lubuntu上的netbeans中未找到源错误（malloc.c）？

Question

I am using netbeans8.0.1 on lubuntu and I can not get past my malloc instances in the debugging environment. I just get to my build tree malloc function and the dissembly window appears saying "!Source not found, file: malloc.c, line: 2,876". I had this same code working on xcode but now that I am using linux and netbeans it will not run. By the way this is with the c programming language and the code is for a parser and automated differentiation tool. I am new to the c language but as I said before I had this very same program working on xcode but when I brought it to my laptop for further development I ran into this problem.

struct node *buildtree(){
struct node* name=(struct node*)malloc(sizeof(struct node));
name->val=0;
name->sym='\0';
return name;

};

Answer 1

To step into function in debugger you have to posses the code of the function. It seems that you don't have access to the code of malloc, you have a binary, compiled version, but no source code. Your program can be still run because for this to happen the binary code is necessary and not the source files. You should install/download correct file or step over this function while in debug. A minor hint: no need to cast the result of mallloc in C .