Added support for creation of Static Position-Independent Executables (PIE) on i386, x86_64, and arm.

This patch adds the generation of rcrt1.o which is used by gcc when compiling with the --static-pie flag.

rcrt1.o differs from crt1.o and Scrt1.o in that it the executable has a dynamic section but no relocations have been performed prior to _start being called.
crt1.o assumes there to be no dynamic relocations, and Scrt1.o has all relocations performed prior to execution by lsdo.

The new reloc_static_pie function handles parsing the dynamic section, and performing the relocations in a architecture agnostic method.
It also sets _dl_load_base which is used when initalizing TLS to ensure loading from the proper location.
This allows for easier porting of static-pie support to additional architectures as only modifications to crt1.S to find the load address are required.

Signed-off-by: linted <linted@users.noreply.github.com>

0 files changed, 0 insertions, 0 deletions