1 files changed, 12 insertions, 0 deletions
diff --git a/src/ucontext.rs b/src/ucontext.rs
index f77b4815..6886dd41 100644
--- a/src/ucontext.rs
+++ b/src/ucontext.rs
@@ -1,6 +1,8 @@
 use libc;
+#[cfg(not(target_env = "musl"))]
 use {Errno, Result};
 use std::mem;
+use sys::signal::SigSet;
 
 #[derive(Clone, Copy)]
 pub struct UContext {
@@ -8,6 +10,7 @@ pub struct UContext {
 }
 
 impl UContext {
+    #[cfg(not(target_env = "musl"))]
     pub fn get() -> Result<UContext> {
         let mut context: libc::ucontext_t = unsafe { mem::uninitialized() };
         let res = unsafe {
@@ -16,10 +19,19 @@ impl UContext {
         Errno::result(res).map(|_| UContext { context: context })
     }
 
+    #[cfg(not(target_env = "musl"))]
     pub fn set(&self) -> Result<()> {
         let res = unsafe {
             libc::setcontext(&self.context as *const libc::ucontext_t)
         };
         Errno::result(res).map(drop)
     }
+
+    pub fn sigmask_mut(&mut self) -> &mut SigSet {
+        unsafe { mem::transmute(&mut self.context.uc_sigmask) }
+    }
+
+    pub fn sigmask(&self) -> &SigSet {
+        unsafe { mem::transmute(&self.context.uc_sigmask) }
+    }
 }