Commit 3375a580be

@@ -805,6 +805,10 @@ pub const sigset_t = extern struct {
     __bits: [_SIG_WORDS]u32,
 };
 
+pub const SIG_ERR = @intToPtr(?Sigaction.sigaction_fn, maxInt(usize));
+pub const SIG_DFL = @intToPtr(?Sigaction.sigaction_fn, 0);
+pub const SIG_IGN = @intToPtr(?Sigaction.sigaction_fn, 1);
+
 pub const empty_sigset = sigset_t{ .__bits = [_]u32{0} ** _SIG_WORDS };
 
 // XXX x86_64 specific

@@ -773,11 +773,6 @@ pub const sigval = extern union {
 };
 
 pub const siginfo_t = extern union {
-    pad: [128]u8,
-    info: _ksiginfo,
-};
-
-pub const _ksiginfo = extern struct {
     signo: c_int,
     code: c_int,
     errno: c_int,
@@ -794,11 +789,22 @@ pub const _ksiginfo = extern struct {
             addr: ?*c_void,
             trapno: c_int,
         },
+        __pad: [128 - 3 * @sizeOf(c_int)]u8,
     } align(@sizeOf(usize)),
 };
 
+comptime {
+    std.debug.assert(@sizeOf(siginfo_t) == 128);
+}
+
 pub const sigset_t = c_uint;
-pub const empty_sigset = sigset_t(0);
+pub const empty_sigset: sigset_t = 0;
+
+pub const SIG_ERR = @intToPtr(?Sigaction.sigaction_fn, maxInt(usize));
+pub const SIG_DFL = @intToPtr(?Sigaction.sigaction_fn, 0);
+pub const SIG_IGN = @intToPtr(?Sigaction.sigaction_fn, 1);
+pub const SIG_CATCH = @intToPtr(?Sigaction.sigaction_fn, 2);
+pub const SIG_HOLD = @intToPtr(?Sigaction.sigaction_fn, 3);
 
 pub const EPERM = 1; // Operation not permitted
 pub const ENOENT = 2; // No such file or directory