libc 0.2.186

Raw FFI bindings to platform libraries like libc.
Documentation 
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use crate::prelude::*;
use crate::PT_FIRSTMACH;

pub type ucontext_t = sigcontext;

s! {
    pub struct sigcontext {
        pub sc_rdi: c_long,
        pub sc_rsi: c_long,
        pub sc_rdx: c_long,
        pub sc_rcx: c_long,
        pub sc_r8: c_long,
        pub sc_r9: c_long,
        pub sc_r10: c_long,
        pub sc_r11: c_long,
        pub sc_r12: c_long,
        pub sc_r13: c_long,
        pub sc_r14: c_long,
        pub sc_r15: c_long,
        pub sc_rbp: c_long,
        pub sc_rbx: c_long,
        pub sc_rax: c_long,
        pub sc_gs: c_long,
        pub sc_fs: c_long,
        pub sc_es: c_long,
        pub sc_ds: c_long,
        pub sc_trapno: c_long,
        pub sc_err: c_long,
        pub sc_rip: c_long,
        pub sc_cs: c_long,
        pub sc_rflags: c_long,
        pub sc_rsp: c_long,
        pub sc_ss: c_long,
        pub sc_fpstate: *mut fxsave64,
        __sc_unused: Padding<c_int>,
        pub sc_mask: c_int,
        pub sc_cookie: c_long,
    }

    #[repr(packed)]
    pub struct fxsave64 {
        pub fx_fcw: u16,
        pub fx_fsw: u16,
        pub fx_ftw: u8,
        __fx_unused1: Padding<u8>,
        pub fx_fop: u16,
        pub fx_rip: u64,
        pub fx_rdp: u64,
        pub fx_mxcsr: u32,
        pub fx_mxcsr_mask: u32,
        pub fx_st: [[u64; 2]; 8],
        pub fx_xmm: [[u64; 2]; 16],
        __fx_unused3: Padding<[u8; 96]>,
    }
}

pub(crate) const _ALIGNBYTES: usize = size_of::<c_long>() - 1;

pub const _MAX_PAGE_SHIFT: u32 = 12;

pub const PT_STEP: c_int = PT_FIRSTMACH + 0;
pub const PT_GETREGS: c_int = PT_FIRSTMACH + 1;
pub const PT_SETREGS: c_int = PT_FIRSTMACH + 2;
pub const PT_GETFPREGS: c_int = PT_FIRSTMACH + 3;
pub const PT_SETFPREGS: c_int = PT_FIRSTMACH + 4;