Add the more general codes as well

Author: xd009642

libc-test/semver/linux.txt

@@ -2879,7 +2879,16 @@ SIOCSMIIREG
 SIOCSRARP
 SIOCWANDEV
 SIOGIFINDEX
+SI_ASYNCIO
+SI_DETHREAD
+SI_KERNEL
 SI_LOAD_SHIFT
+SI_MESGQ
+SI_QUEUE
+SI_SIGIO
+SI_TIMER
+SI_TKILL
+SI_USER
 SND_CNT
 SND_MAX
 SOCK_CLOEXEC

src/unix/linux_like/mod.rs

@@ -1288,6 +1288,17 @@ pub const PIPE_BUF: usize = 4096;
 
 pub const SI_LOAD_SHIFT: c_uint = 16;
 
+// si_code values
+pub const SI_USER: c_int = 0;
+pub const SI_KERNEL: c_int = 0x80;
+pub const SI_QUEUE: c_int = -1;
+pub const SI_TIMER: c_int = -2;
+pub const SI_MESGQ: c_int = -3;
+pub const SI_ASYNCIO: c_int = -4;
+pub const SI_SIGIO: c_int = -5;
+pub const SI_TKILL: c_int = -6;
+pub const SI_DETHREAD: c_int = -7;
+
 // si_code values for SIGBUS signal
 pub const BUS_ADRALN: c_int = 1;
 pub const BUS_ADRERR: c_int = 2;