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Update mcontext_t definition on musl, add fpstate struct #1646

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Update mcontext_t definition on musl, add fpstate struct #1646

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27 changes: 26 additions & 1 deletion src/unix/linux_like/linux/musl/b64/x86_64/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,30 @@ s! {
pub nla_type: u16,
}

pub struct _libc_fpxreg {
pub significand: [u16; 4],
pub exponent: u16,
__private: [u16; 3],
}

pub struct _libc_xmmreg {
pub element: [u32; 4],
}

pub struct _libc_fpstate {
pub cwd: u16,
pub swd: u16,
pub ftw: u16,
pub fop: u16,
pub rip: u64,
pub rdp: u64,
pub mxcsr: u32,
pub mxcr_mask: u32,
pub _st: [_libc_fpxreg; 8],
pub _xmm: [_libc_xmmreg; 16],
__private: [u64; 12],
}

pub struct user_regs_struct {
pub r15: ::c_ulong,
pub r14: ::c_ulong,
Expand Down Expand Up @@ -123,7 +147,8 @@ s! {
// file: arch/x86_64/bits/signal.h#L80-L84
pub struct mcontext_t {
pub gregs: [greg_t; 23],
__private: [u64; 9],
pub fpregs: *mut _libc_fpstate,
__private: [u64; 8],
}

pub struct ipc_perm {
Expand Down