diff --git a/src/flag.rs b/src/flag.rs
index 679fe5e..47e3939 100644
--- a/src/flag.rs
+++ b/src/flag.rs
@@ -34,10 +34,6 @@ pub const MODE_PERM: u16 = 0x0FFF;
 pub const MODE_SETUID: u16 = 0o4000;
 pub const MODE_SETGID: u16 = 0o2000;
 
-pub const SEEK_SET: usize = 0;
-pub const SEEK_CUR: usize = 1;
-pub const SEEK_END: usize = 2;
-
 pub const O_RDONLY: usize =     0x0000_0000;
 pub const O_WRONLY: usize =     0x0001_0000;
 pub const O_RDWR: usize =       0x0002_0000;
@@ -52,4 +48,40 @@ pub const O_CREAT: usize =      0x0200_0000;
 pub const O_TRUNC: usize =      0x0400_0000;
 pub const O_EXCL: usize =       0x0800_0000;
 
+pub const SEEK_SET: usize = 0;
+pub const SEEK_CUR: usize = 1;
+pub const SEEK_END: usize = 2;
+
+pub const SIGHUP: usize =   1;
+pub const SIGINT: usize =   2;
+pub const SIGQUIT: usize =  3;
+pub const SIGILL: usize =   4;
+pub const SIGTRAP: usize =  5;
+pub const SIGABRT: usize =  6;
+pub const SIGBUS: usize =   7;
+pub const SIGFPE: usize =   8;
+pub const SIGKILL: usize =  9;
+pub const SIGUSR1: usize =  10;
+pub const SIGSEGV: usize =  11;
+pub const SIGUSR2: usize =  12;
+pub const SIGPIPE: usize =  13;
+pub const SIGALRM: usize =  14;
+pub const SIGTERM: usize =  15;
+pub const SIGSTKFLT: usize= 16;
+pub const SIGCHLD: usize =  17;
+pub const SIGCONT: usize =  18;
+pub const SIGSTOP: usize =  19;
+pub const SIGTSTP: usize =  20;
+pub const SIGTTIN: usize =  21;
+pub const SIGTTOU: usize =  22;
+pub const SIGURG: usize =   23;
+pub const SIGXCPU: usize =  24;
+pub const SIGXFSZ: usize =  25;
+pub const SIGVTALRM: usize= 26;
+pub const SIGPROF: usize =  27;
+pub const SIGWINCH: usize = 28;
+pub const SIGIO: usize =    29;
+pub const SIGPWR: usize =   30;
+pub const SIGSYS: usize =   31;
+
 pub const WNOHANG: usize = 1;
diff --git a/src/lib.rs b/src/lib.rs
index 8cc7916..7646c00 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -112,6 +112,10 @@ pub unsafe fn iopl(level: usize) -> Result<usize> {
     syscall1(SYS_IOPL, level)
 }
 
+pub fn kill(pid: usize, sig: usize) -> Result<usize> {
+    unsafe { syscall2(SYS_KILL, pid, sig) }
+}
+
 pub unsafe fn link(old: *const u8, new: *const u8) -> Result<usize> {
     syscall2(SYS_LINK, old as usize, new as usize)
 }
diff --git a/src/number.rs b/src/number.rs
index d5c5856..408d185 100644
--- a/src/number.rs
+++ b/src/number.rs
@@ -41,6 +41,7 @@ pub const SYS_GETGID: usize =   200;
 pub const SYS_GETPID: usize =   20;
 pub const SYS_GETUID: usize =   199;
 pub const SYS_IOPL: usize =     110;
+pub const SYS_KILL: usize =     37;
 pub const SYS_NANOSLEEP: usize =162;
 pub const SYS_PHYSALLOC: usize =945;
 pub const SYS_PHYSFREE: usize = 946;