Expose si_addr on siginfo_t. Refs #716

Author: alex

src/unix/notbsd/linux/other/mod.rs

@@ -1,5 +1,18 @@
 pub type __priority_which_t = ::c_uint;
 
+s_no_extra_traits! {
+    pub union XXX_not_sure_what_to_call_this {
+        addr_bnd: addr_bnd_t,
+        pkey: u32,
+    }
+
+    #[repr(C, packed)]
+    pub union sifields_t {
+        _pad: [::c_int; 29],
+        sigfault: sigfault_t,
+    }
+}
+
 s! {
     pub struct aiocb {
         pub aio_fildes: ::c_int,
@@ -44,11 +57,24 @@ s! {
         pub ss_size: ::size_t
     }
 
+    pub struct addr_bnd_t {
+        lower: *mut ::c_void,
+        upper: *mut ::c_void,
+    }
+
+    pub struct sigfault_t {
+        addr: *mut ::c_void,
+        #[cfg(target_arch = "sparc")]
+        trapno: ::c_int,
+        addr_lsb: ::c_short,
+        xxx_name_unclear: XXX_not_sure_what_to_call_this
+    }
+
     pub struct siginfo_t {
         pub si_signo: ::c_int,
         pub si_errno: ::c_int,
         pub si_code: ::c_int,
-        pub _pad: [::c_int; 29],
+        sifields: sifields_t,
         #[cfg(target_arch = "x86_64")]
         _align: [u64; 0],
         #[cfg(not(target_arch = "x86_64"))]
@@ -232,6 +258,12 @@ s_no_extra_traits! {
     }
 }
 
+impl siginfo_t {
+    pub unsafe fn si_addr(&self) -> *mut ::c_void {
+        self.sifields.sigfault.addr
+    }
+}
+
 cfg_if! {
     if #[cfg(feature = "extra_traits")] {
         impl PartialEq for utmpx {