creating shared library with 'cc' instead of 'ld'

[steve flynn_1]

Hello there,

I am attempting to create a shared library using the cc comand;

cc -Wl,-b,-I -o

[kalimuthu]

Hello steve,

You mean that ,All source are compiled with +z option, then

you could use the following command to create the shared library.

ld -b -o

[Manish Srivastava]

Hi,

I just tried to build few object files with +Z and then use your compile line to create a library and was able to do so.

1. cc +Z -c a.c b.c
2. cc -Wl,-b,-I -o lib.so a.o b.o

crt0.o is required to build the final binary and is invoked by the linker please have a look at ld manpage.

manish

[ranganath ramachandra]

the crt0 is passed to the linker by the compiler, it is used only when building an executable. the linker does very few things by itself (like using milli.a).

i dont understand why your compile options are like this: -Wl,-b,-l. what is '-l' doing there ?

do not pass the '-b' option to the linker, put it in the compile options. the compiler will understand that '+z' is to be used. it will pass on the '-b' to the linker as well. it will also NOT add the crt0 to the link line.

if you dont say '-b' to the compiler, it will assume you are building an executable and add crt0 to the link line.