I'm confused about the usage of crt0.s in newlib.

["Cliff" <timntsai at pchome dot com dot tw>]

Hi:

    When building,the makefile shows that /sys/crt0.s

    is linked into libraries.And after libc.a lim.a is

    created,we can link functions in theses library like

    this.

    $crossgcc -o xxx.exe crt0.o xxxtest.o -lc -lm ...

   

    My question is:

    1.What's the difference in these two crt0.s

    2.Why newlib still need a crt0.s

 

    Thanks a lot!