rtld: Add startup code
rtld: Add startup code

Implement _start: compute parameters for __self_reloc, and give
control to the user program.

	* ldso/ldso/arm/dl-startup.h: Implement _start for __FDPIC__.

Signed-off-by: Mickaël Guêné <fd4c850767532186e170673aca49b5c51d48c53c@st.com>
Signed-off-by: Christophe Lyon <0ec1b8ee85d9250d253c392c5d5101068ac5d5d3@st.com>

wbx-github/uclibc-ng,kraj/uclibc-ng,kraj/uclibc-ng,kraj/uclibc-ng,wbx-github/uclibc-ng,kraj/uclibc-ng,wbx-github/uclibc-ng,wbx-github/uclibc-ng