From d780eec23a5604fafed132ef22ebd02354f90dd0 Mon Sep 17 00:00:00 2001
From: Philipp Matthias Schaefer <philipp.matthias.schaefer@posteo.de>
Date: Thu, 7 Apr 2016 21:01:39 +0200
Subject: [PATCH] Add ucontext for linux-musl.

---
 src/unix/notbsd/linux/musl/b32/x86.rs    | 13 +++++++++++++
 src/unix/notbsd/linux/musl/b64/x86_64.rs | 15 +++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/src/unix/notbsd/linux/musl/b32/x86.rs b/src/unix/notbsd/linux/musl/b32/x86.rs
index 2785547820c93..aae6c04573145 100644
--- a/src/unix/notbsd/linux/musl/b32/x86.rs
+++ b/src/unix/notbsd/linux/musl/b32/x86.rs
@@ -82,6 +82,19 @@ s! {
         pub f_flags: ::c_ulong,
         pub f_spare: [::c_ulong; 4],
     }
+
+    pub struct mcontext_t {
+        __private: [u32; 22]
+    }
+
+    pub struct ucontext_t {
+        pub uc_flags: ::c_ulong,
+        pub uc_link: *mut ucontext_t,
+        pub uc_stack: ::stack_t,
+        pub uc_mcontext: mcontext_t,
+        pub uc_sigmask: ::sigset_t,
+        __private: [u8; 112],
+    }
 }
 
 pub const O_DIRECT: ::c_int = 0x4000;
diff --git a/src/unix/notbsd/linux/musl/b64/x86_64.rs b/src/unix/notbsd/linux/musl/b64/x86_64.rs
index 168e242927386..02324dae3029f 100644
--- a/src/unix/notbsd/linux/musl/b64/x86_64.rs
+++ b/src/unix/notbsd/linux/musl/b64/x86_64.rs
@@ -1,3 +1,18 @@
+s! {
+    pub struct mcontext_t {
+        __private: [u64; 32],
+    }
+
+    pub struct ucontext_t {
+        pub uc_flags: ::c_ulong,
+        pub uc_link: *mut ucontext_t,
+        pub uc_stack: ::stack_t,
+        pub uc_mcontext: mcontext_t,
+        pub uc_sigmask: ::sigset_t,
+        __private: [u8; 512],
+    }
+}
+
 pub const SYS_gettid: ::c_long = 186;
 
 pub const SYS_perf_event_open: ::c_long = 298;