earth_tech
September 2nd, 2009, 07:52 AM
hello every one,
I have a problem. I can not convert a object file to shared object file in ubuntu. The program is as follows:
#include<stdio.h>
int main()
{
int a,b,c=0;
printf("Enter 1 st Number:")
scanf("%d",&a);
printf("Enter 2 nd Number:");
scanf("%d", &b);
c=a+b;
printf("The sum is %d",c);
return 0;
}
program name is add.c
To run this program use command cc -c add.c then create a object of that file using cc -o add add.c command. After this to run the program use ./ add. Program run successfully. To convert the object file to shared object file use the following steps. These are as follows:
Step :1
Now i want to create a shared object file using add.o file. The add.o file is in earth folder which is in Desktop. To execute this object file to shared object file use cc -desktop/earth command.
Then shows :
cc: -E or -X required when input is form standard input
Step :2
To convert use the following command:
earth@earth: ~$ /Desktop/earth -k add.o -o add.so
Then the output is
bash: desktop/earth : No such file or directory
But i know in the earth folder there has add.o file.
Step :3
To convert use the following command:
earth@earth:~ ld-g add.o -o add.so
Then shows
ld: warning: cannot find entry symbol_start;
defaulting to 00000000008048074
add.o: In function 'main'
add.c:(.text+0x20) : undefined reference to 'printf'
add.c:(.text+0x33) : undefined reference to 'scanf'
add.c:(.text+0x3f) : undefined reference to 'printf'
add.c:(.text+0x52) : undefined reference to 'scanf'
add.c:(.text+0x72) : undefined reference to 'printf'
Though i am a new in linux environment so i don't know how to convert a object file to shared object file.
I can't understand what's are the errors and in which way it will solve. Please any one give me their valuable information to solve this problem.
I have a problem. I can not convert a object file to shared object file in ubuntu. The program is as follows:
#include<stdio.h>
int main()
{
int a,b,c=0;
printf("Enter 1 st Number:")
scanf("%d",&a);
printf("Enter 2 nd Number:");
scanf("%d", &b);
c=a+b;
printf("The sum is %d",c);
return 0;
}
program name is add.c
To run this program use command cc -c add.c then create a object of that file using cc -o add add.c command. After this to run the program use ./ add. Program run successfully. To convert the object file to shared object file use the following steps. These are as follows:
Step :1
Now i want to create a shared object file using add.o file. The add.o file is in earth folder which is in Desktop. To execute this object file to shared object file use cc -desktop/earth command.
Then shows :
cc: -E or -X required when input is form standard input
Step :2
To convert use the following command:
earth@earth: ~$ /Desktop/earth -k add.o -o add.so
Then the output is
bash: desktop/earth : No such file or directory
But i know in the earth folder there has add.o file.
Step :3
To convert use the following command:
earth@earth:~ ld-g add.o -o add.so
Then shows
ld: warning: cannot find entry symbol_start;
defaulting to 00000000008048074
add.o: In function 'main'
add.c:(.text+0x20) : undefined reference to 'printf'
add.c:(.text+0x33) : undefined reference to 'scanf'
add.c:(.text+0x3f) : undefined reference to 'printf'
add.c:(.text+0x52) : undefined reference to 'scanf'
add.c:(.text+0x72) : undefined reference to 'printf'
Though i am a new in linux environment so i don't know how to convert a object file to shared object file.
I can't understand what's are the errors and in which way it will solve. Please any one give me their valuable information to solve this problem.