From ad419d337702578d319088ce66fd6b1b26ef6f3b Mon Sep 17 00:00:00 2001
From: John Baldwin <jhb@FreeBSD.org>
Date: Sat, 10 Jun 2017 00:37:02 +0000
Subject: [PATCH] Decode arguments to getpriority() and setpriority().

---
 usr.bin/truss/syscall.h  | 2 +-
 usr.bin/truss/syscalls.c | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/usr.bin/truss/syscall.h b/usr.bin/truss/syscall.h
index d99d0c89a321..ac1e17c50d44 100644
--- a/usr.bin/truss/syscall.h
+++ b/usr.bin/truss/syscall.h
@@ -49,7 +49,7 @@ enum Argtype { None = 1, Hex, Octal, Int, UInt, LongHex, Name, Ptr, Stat, Ioctl,
 	CapFcntlRights, Fadvice, FileFlags, Flockop, Getfsstatmode, Kldsymcmd,
 	Kldunloadflags, Sizet, Madvice, Socklent, Sockprotocol, Sockoptlevel,
 	Sockoptname, Msgflags, CapRights, PUInt, PQuadHex, Acltype,
-	Extattrnamespace, Minherit, Mlockall, Mountflags, Msync,
+	Extattrnamespace, Minherit, Mlockall, Mountflags, Msync, Priowhich,
 
 	CloudABIAdvice, CloudABIClockID, ClouduABIFDSFlags,
 	CloudABIFDStat, CloudABIFileStat, CloudABIFileType,
diff --git a/usr.bin/truss/syscalls.c b/usr.bin/truss/syscalls.c
index 5f9274eaefa9..979aca61762c 100644
--- a/usr.bin/truss/syscalls.c
+++ b/usr.bin/truss/syscalls.c
@@ -240,6 +240,8 @@ static struct syscall decoded_syscalls[] = {
 	  .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
 	{ .name = "getpgid", .ret_type = 1, .nargs = 1,
 	  .args = { { Int, 0 } } },
+	{ .name = "getpriority", .ret_type = 1, .nargs = 2,
+	  .args = { { Priowhich, 0 }, { Int, 1 } } },
 	{ .name = "getrlimit", .ret_type = 1, .nargs = 2,
 	  .args = { { Resource, 0 }, { Rlimit | OUT, 1 } } },
 	{ .name = "getrusage", .ret_type = 1, .nargs = 2,
@@ -402,6 +404,8 @@ static struct syscall decoded_syscalls[] = {
 	            { Socklent | IN, 5 } } },
 	{ .name = "setitimer", .ret_type = 1, .nargs = 3,
 	  .args = { { Int, 0 }, { Itimerval, 1 }, { Itimerval | OUT, 2 } } },
+	{ .name = "setpriority", .ret_type = 1, .nargs = 3,
+	  .args = { { Priowhich, 0 }, { Int, 1 }, { Int, 2 } } },
 	{ .name = "setrlimit", .ret_type = 1, .nargs = 2,
 	  .args = { { Resource, 0 }, { Rlimit | IN, 1 } } },
 	{ .name = "setsockopt", .ret_type = 1, .nargs = 5,
@@ -2123,6 +2127,9 @@ print_arg(struct syscall_args *sc, unsigned long *args, long *retval,
 	case Msync:
 		print_mask_arg(sysdecode_msync_flags, fp, args[sc->offset]);
 		break;
+	case Priowhich:
+		print_integer_arg(sysdecode_prio_which, fp, args[sc->offset]);
+		break;
 
 	case CloudABIAdvice:
 		fputs(xlookup(cloudabi_advice, args[sc->offset]), fp);