[cfe-dev] Creating llvm projects using visual studio

kalyan ponnala ponnala.kalyan at gmail.com
Thu Feb 18 14:33:13 PST 2010


I tried doing the same but it is not working. Let me tell you about the
program: It has some problems with external references i think::
#include <stdio.h>
int globalvariable[10];
int externalfunc(int* , int);

int main()
     int a[10];
     int temp = 10;
     externalfunc(a , temp);
     for(i =0; i<10;i++)
         printf("\n %d", globalvariable[i]);

     return 0;

extern int globalvariable[10];
int externalfunc(int a[], int temp)
   int i;
      for (i=0; i<10; i++)
             globalvariable[i]= a[i] + temp;
    return 0;

On Thu, Feb 18, 2010 at 4:42 PM, Ahmed Charles <ahmedcharles at gmail.com>wrote:

> On Thu, Feb 18, 2010 at 12:16 PM, kalyan ponnala <ponnala.kalyan at gmail.com
> > wrote:
>> Hi,
>> I am trying to create an small project using visual studio.
>> I would like to know how to create a project with two '.c' source files.
>> The first .c file should have the main() program and a function declaration
>> and function call in it.
>> The second .c file should contain the function definition.
>> I tried doing that using visual studio. It can compile and understand that
>> the function definition is in a separate .c file (but in the same project
>> folder). But when I tried to compile the same program with
>>  clang -c main.c -emit-llvm -o main.bc
>> lli main.bc
>> It gave me this error:
>> LLVM ERROR: program used external function 'functioncall' which could not
>> be resolved!
>> could you tell me how to debug these kind of projects which have the
>> function definitions in a separate .c file ??
> (Should've replied to everyone.)
> The IDE hides a lot from you. What it's really doing is calling cl.exe with
> both files (either at once or separately).
> Try:
> clang -c other.c -emit-llvm -o other.bc
> lli main.bc other.bc

Kalyan Ponnala
phone: 8163772059
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-dev/attachments/20100218/935f837c/attachment.html>

More information about the cfe-dev mailing list