Merge branch 'dynamic' into 'master'

Makefile

src/ld_so/ld_script

src/ld_so/library.rs

src/ld_so/linker.rs

src/ld_so/start.rs

src/start.rs

tests/.gitignore

tests/Makefile

tests/expected/args.stdout

tests/expected/bins_dynamic/args.stderr

tests/expected/bins_dynamic/args.stdout

tests/expected/bins_dynamic/errno.stderr

tests/expected/bins_dynamic/errno.stdout

tests/expected/bins_static/args.stderr

tests/expected/bins_static/args.stdout

tests/expected/bins_static/errno.stderr

tests/expected/bins_static/errno.stdout

tests/verify.sh