Gunnar Beutner 67516fa555 LibC: Shared libraries shouldn't have an entry point ...

The _start() function attempts to call main() which is a
problem when trying to build a shared library with --no-undefined:

  $ echo > t.c
  $ gcc -shared -Wl,--no-undefined -o t.so t.c
  /usr/local/lib/gcc/i686-pc-serenity/10.2.0/../../../../i686-pc-serenity/bin/ld:
  /usr/lib/crt0_shared.o: in function `_start':
  ./Build/i686/../../Userland/Libraries/LibC/crt0_shared.cpp:56: undefined reference to `main'
  collect2: error: ld returned 1 exit status

Also, unless explicitly requested by the user shared libraries
should not have an entry point (e.g. _start) at all.

2021-04-16 17:56:12 +02:00

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