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authorori <ori@ninja.acha.ninja>2016-11-22 10:51:52 +1300
committerori <ori@ninja.acha.ninja>2016-11-22 10:51:52 +1300
commit0482a850a5144192b3dc7dcbfe4d46b712005542 (patch)
tree4fa5b712cc224a061ec4bec2c4ad1536b9ea97b1 /lib/sys/sys+openbsd-x64.myr
parentbc9308b1a6a9255d43113e5d4ee30b16e688c159 (diff)
downloadmc-0482a850a5144192b3dc7dcbfe4d46b712005542.tar.gz
Implement signals on OpenBSD
Diffstat (limited to 'lib/sys/sys+openbsd-x64.myr')
-rw-r--r--lib/sys/sys+openbsd-x64.myr63
1 files changed, 62 insertions, 1 deletions
diff --git a/lib/sys/sys+openbsd-x64.myr b/lib/sys/sys+openbsd-x64.myr
index 01ad0bc..a8c2cf5 100644
--- a/lib/sys/sys+openbsd-x64.myr
+++ b/lib/sys/sys+openbsd-x64.myr
@@ -15,7 +15,8 @@ pkg sys =
type filemode = uint32
type filetype = uint8
type fcntlcmd = int64
- type umtxop = int32
+ type signo = int32
+ type sigflags = int32
type clock = union
`Clockrealtime
@@ -42,6 +43,14 @@ pkg sys =
usec : uint64
;;
+ type sigset = uint32
+
+ type sigaction = struct
+ handler : byte# /* code pointer */
+ mask : sigset
+ flags : sigflags
+ ;;
+
type rusage = struct
utime : timeval /* user time */
stime : timeval /* system time */
@@ -255,6 +264,50 @@ pkg sys =
/* return value for a failed mapping */
const Mapbad : byte# = (-1 : byte#)
+ /* signal flags */
+ const Saonstack : sigflags = 0x0001 /* take signal on signal stack */
+ const Sarestart : sigflags = 0x0002 /* restart system on signal return */
+ const Saresethand : sigflags = 0x0004 /* reset to SIG_DFL when taking signal */
+ const Sanodefer : sigflags = 0x0010 /* don't mask the signal we're delivering */
+ const Sanocldwait : sigflags = 0x0020 /* don't create zombies (assign to pid 1) */
+ const Sanocldstop : sigflags = 0x0008 /* do not generate SIGCHLD on child stop */
+ const Sasiginfo : sigflags = 0x0040 /* generate siginfo_t */
+
+ /* signals */
+ const Sighup : signo = 1 /* hangup */
+ const Sigint : signo = 2 /* interrupt */
+ const Sigquit : signo = 3 /* quit */
+ const Sigill : signo = 4 /* illegal instruction (not reset when caught) */
+ const Sigtrap : signo = 5 /* trace trap (not reset when caught) */
+ const Sigabrt : signo = 6 /* abort() */
+ const Sigiot : signo = Sigabrt /* compatibility */
+ const Sigemt : signo = 7 /* EMT instruction */
+ const Sigfpe : signo = 8 /* floating point exception */
+ const Sigkill : signo = 9 /* kill (cannot be caught or ignored) */
+ const Sigbus : signo = 10 /* bus error */
+ const Sigsegv : signo = 11 /* segmentation violation */
+ const Sigsys : signo = 12 /* bad argument to system call */
+ const Sigpipe : signo = 13 /* write on a pipe with no one to read it */
+ const Sigalrm : signo = 14 /* alarm clock */
+ const Sigterm : signo = 15 /* software termination signal from kill */
+ const Sigurg : signo = 16 /* urgent condition on IO channel */
+ const Sigstop : signo = 17 /* sendable stop signal not from tty */
+ const Sigtstp : signo = 18 /* stop signal from tty */
+ const Sigcont : signo = 19 /* continue a stopped process */
+ const Sigchld : signo = 20 /* to parent on child stop or exit */
+ const Sigttin : signo = 21 /* to readers pgrp upon background tty read */
+ const Sigttou : signo = 22 /* like TTIN for output if (tp->t_local&LTOSTOP) */
+ const Sigio : signo = 23 /* input/output possible signal */
+ const Sigxcpu : signo = 24 /* exceeded CPU time limit */
+ const Sigxfsz : signo = 25 /* exceeded file size limit */
+ const Sigvtalrm : signo = 26 /* virtual time alarm */
+ const Sigprof : signo = 27 /* profiling time alarm */
+ const Sigwinch : signo = 28 /* window size changes */
+ const Siginfo : signo = 29 /* information request */
+ const Sigusr1 : signo = 30 /* user defined signal 1 */
+ const Sigusr2 : signo = 31 /* user defined signal 2 */
+ const Sigthr : signo = 32 /* thread library AST */
+
/* syscalls */
const Syssyscall : scno = 0
const Sysexit : scno = 1
@@ -498,6 +551,10 @@ pkg sys =
const chdir : (p : byte[:] -> int64)
const __getcwd : (buf : byte[:] -> int64)
+ /* signals */
+ const sigaction : (sig : signo, act : sigaction#, oact : sigaction# -> int)
+ const sigprocmask : (how : int32, set : sigset#, oset : sigset# -> int)
+
/* fd stuff */
const pipe : (fds : fd[2]# -> int64)
const dup : (fd : fd -> fd)
@@ -618,6 +675,10 @@ const chdir = {dir; -> syscall(Syschdir, cstring(dir))}
const __getcwd = {buf; -> syscall(Sys__getcwd, a(buf), a(buf.len))}
const getdents = {fd, buf; -> (syscall(Sysgetdents, a(buf), a(buf.len)) : int64)}
+/* signals */
+const sigaction = {sig, act, oact; -> (syscall(Syssigaction, a(sig), a(act), a(oact)) : int)}
+const sigprocmask = {sig, act, oact; -> (syscall(Syssigprocmask, a(sig), a(act), a(oact)) : int)}
+
/* file stuff */
const pipe = {fds; -> syscall(Syspipe, fds)}
const dup = {fd; -> (syscall(Sysdup, a(fd)) : fd)}