Merge branch 'master' of https://gitlab.redox-os.org/redox-os/kernel

Cargo.lock

src/arch/x86_64/idt.rs

src/arch/x86_64/interrupt/exception.rs

src/arch/x86_64/interrupt/syscall.rs

src/arch/x86_64/macros.rs

src/arch/x86_64/paging/mod.rs

src/context/arch/x86_64.rs

src/ptrace.rs

src/scheme/proc.rs

src/syscall/driver.rs

src/syscall/mod.rs

syscall