我现在正在编译C代码以与ncverilog链接。 但是我在编译期间收到编译警告，我不明白为什么会这样。
的hello.c
1 #include<stdio.h>
2 #include"./include/vpi_user.h"
3 void hello(){
4 printf("hello world!\n");
5 }
6
7
8 void register_hello(){
9
10 s_vpi_systf_data data;
11 data.type = vpiSysTask; //vpiSysFunc;
12 data.sysfunctype = vpiSysFuncInt; // return type if type is Func
13 data.tfname = "$hello";
14 data.calltf=hello;
15 data.compiletf = 0;
16 data.sizetf = 0;
17 data.user_data = 0;
18 vpi_register_systf(&data);
19 }
vpi.c
23 #include <stdarg.h>
24 #include "vpi_user.h"
25 #include "vpi_user_cds.h"
26
27
28 extern void register_hello();
29
30 void (*vlog_startup_routines[])() =
31 {
32 register_hello,0
33 };
34
35 /* ---------------------------------------------------------------
36 The following is an example of what should be included in this
file:
37
38 extern void setup_my_callbacks(); <-- Add a declaration for your
routine.
39
40 void (*vlog_startup_routines[])() =
41 {
42 $*** add user entries here ***$
43
44 setup_my_callbacks, <-- Add your routine to the table.
45 hello_re
46 0 $*** final entry must be 0 ***$
47
48 };
49 -----------------------------------------------------------------
- */
50
51 void (*vlog_startup_routines[VPI_MAXARRAY])() =
52 {
53 0 /*** final entry must be 0 ***/
54 };
Commnad
gcc hello.c -fPIC -shared -o hello_vpi.so
错误消息
hello.c:14:12: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
data.calltf =你好;