CODEWITHSUNDEEP
cgccsolarisshared-libraries
confused
confused

Reputation: 157

Solaris 32 bit - build shared object using gcc

I am trying to crate a shared object (.so) using gcc version 3.4.3 for Solaris 32 bit system. I was googling for flags required to create a shared object for solaris. In some of the posts , I see that "-shared" flag not used. Instead "-G" flag is used. I had an impression that "-G" flag is same as "-g", but it seems that "-G" is equivalent to "-shared". Am I correct?

The reason being that with SLES10 x86_64 systems, "-shared" flag was required to build .so.

I tried following:-

LIB=-L/lib -L/usr/local/lib -L/usr/lib
gcc -m32 -G -fPIC -o myapi.so.1 myapi.o $(LIB)

Do I need to change above to:-

gcc -m32 -shared -fPIC -o myapi.so.1 myapi.o $(LIB)

Update1 Helpful suggestion from @user562374 to use -shared flag.

If the shared object built using -shared is deployed on solaris machine using different compiler and if it is "statically" linked, will it cause any issues? When I say "statically" linked .so, I mean shared object is linked in make file rather then using "dlsym".

Upvotes: 0

Views: 1469

Answers (1)

user562374
user562374

Reputation: 3917

   -G num
       Put global and static objects less than or equal to num
       bytes into the small data or bss sections instead of the
       ...

If it's gcc, it's -shared, because -G has other uses.

Upvotes: 1

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