diff --git a/unix/mkerrors.sh b/unix/mkerrors.sh
index b3a34c8..d66fc84 100755
--- a/unix/mkerrors.sh
+++ b/unix/mkerrors.sh
@@ -123,6 +123,7 @@
 #include <linux/falloc.h>
 #include <linux/filter.h>
 #include <linux/netlink.h>
+#include <linux/random.h>
 #include <linux/reboot.h>
 #include <linux/rtnetlink.h>
 #include <linux/ptrace.h>
@@ -349,6 +350,7 @@
 		$2 ~ /^CLOCK_/ ||
 		$2 ~ /^CAN_/ ||
 		$2 ~ /^ALG_/ ||
+		$2 ~ /^GRND_/ ||
 		$2 ~ /^SPLICE_/ ||
 		$2 !~ "WMESGLEN" &&
 		$2 ~ /^W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", $2, $2)}
diff --git a/unix/syscall_linux.go b/unix/syscall_linux.go
index 326be81..c011947 100644
--- a/unix/syscall_linux.go
+++ b/unix/syscall_linux.go
@@ -1038,6 +1038,7 @@
 //sysnb	Getpid() (pid int)
 //sysnb	Getppid() (ppid int)
 //sys	Getpriority(which int, who int) (prio int, err error)
+//sys	Getrandom(buf []byte, flags int) (n int, err error)
 //sysnb	Getrusage(who int, rusage *Rusage) (err error)
 //sysnb	Getsid(pid int) (sid int, err error)
 //sysnb	Gettid() (tid int)
diff --git a/unix/zerrors_linux_386.go b/unix/zerrors_linux_386.go
index c13799f..297b0b4 100644
--- a/unix/zerrors_linux_386.go
+++ b/unix/zerrors_linux_386.go
@@ -437,6 +437,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x2
diff --git a/unix/zerrors_linux_amd64.go b/unix/zerrors_linux_amd64.go
index 1937e46..908df5b 100644
--- a/unix/zerrors_linux_amd64.go
+++ b/unix/zerrors_linux_amd64.go
@@ -437,6 +437,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x2
diff --git a/unix/zerrors_linux_arm.go b/unix/zerrors_linux_arm.go
index d64a129..4ce3dee 100644
--- a/unix/zerrors_linux_arm.go
+++ b/unix/zerrors_linux_arm.go
@@ -422,6 +422,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x2
diff --git a/unix/zerrors_linux_arm64.go b/unix/zerrors_linux_arm64.go
index c0acbb5..10e97ed 100644
--- a/unix/zerrors_linux_arm64.go
+++ b/unix/zerrors_linux_arm64.go
@@ -451,6 +451,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x2
diff --git a/unix/zerrors_linux_mips.go b/unix/zerrors_linux_mips.go
index 6eece7e..a3c8261 100644
--- a/unix/zerrors_linux_mips.go
+++ b/unix/zerrors_linux_mips.go
@@ -427,6 +427,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x2
diff --git a/unix/zerrors_linux_mips64.go b/unix/zerrors_linux_mips64.go
index a11dbb3..1fdb641 100644
--- a/unix/zerrors_linux_mips64.go
+++ b/unix/zerrors_linux_mips64.go
@@ -426,6 +426,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	ICANON                           = 0x2
 	ICMPV6_FILTER                    = 0x1
diff --git a/unix/zerrors_linux_mips64le.go b/unix/zerrors_linux_mips64le.go
index 9058318..3341d4d 100644
--- a/unix/zerrors_linux_mips64le.go
+++ b/unix/zerrors_linux_mips64le.go
@@ -426,6 +426,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	ICANON                           = 0x2
 	ICMPV6_FILTER                    = 0x1
diff --git a/unix/zerrors_linux_mipsle.go b/unix/zerrors_linux_mipsle.go
index 974b375..f363c04 100644
--- a/unix/zerrors_linux_mipsle.go
+++ b/unix/zerrors_linux_mipsle.go
@@ -466,6 +466,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x2
diff --git a/unix/zerrors_linux_ppc64.go b/unix/zerrors_linux_ppc64.go
index 58b13c0..1101fd6 100644
--- a/unix/zerrors_linux_ppc64.go
+++ b/unix/zerrors_linux_ppc64.go
@@ -456,6 +456,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x4000
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x100
diff --git a/unix/zerrors_linux_ppc64le.go b/unix/zerrors_linux_ppc64le.go
index 91c3ccc..c3e7015 100644
--- a/unix/zerrors_linux_ppc64le.go
+++ b/unix/zerrors_linux_ppc64le.go
@@ -449,6 +449,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x4000
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x100
diff --git a/unix/zerrors_linux_s390x.go b/unix/zerrors_linux_s390x.go
index 702894a..75d2d84 100644
--- a/unix/zerrors_linux_s390x.go
+++ b/unix/zerrors_linux_s390x.go
@@ -462,6 +462,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x2
diff --git a/unix/zerrors_linux_sparc64.go b/unix/zerrors_linux_sparc64.go
index 4c56e2f..679008f 100644
--- a/unix/zerrors_linux_sparc64.go
+++ b/unix/zerrors_linux_sparc64.go
@@ -470,6 +470,8 @@
 	F_ULOCK                          = 0x0
 	F_UNLCK                          = 0x3
 	F_WRLCK                          = 0x2
+	GRND_NONBLOCK                    = 0x1
+	GRND_RANDOM                      = 0x2
 	HUPCL                            = 0x400
 	IBSHIFT                          = 0x10
 	ICANON                           = 0x2
diff --git a/unix/zsyscall_linux_386.go b/unix/zsyscall_linux_386.go
index a01725b..d4ec806 100644
--- a/unix/zsyscall_linux_386.go
+++ b/unix/zsyscall_linux_386.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_amd64.go b/unix/zsyscall_linux_amd64.go
index 1c1b25e..8b2e87d 100644
--- a/unix/zsyscall_linux_amd64.go
+++ b/unix/zsyscall_linux_amd64.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_arm.go b/unix/zsyscall_linux_arm.go
index 2359fd7..82d36a4 100644
--- a/unix/zsyscall_linux_arm.go
+++ b/unix/zsyscall_linux_arm.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_arm64.go b/unix/zsyscall_linux_arm64.go
index c3dbcad..f6cc320 100644
--- a/unix/zsyscall_linux_arm64.go
+++ b/unix/zsyscall_linux_arm64.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_mips.go b/unix/zsyscall_linux_mips.go
index 3fd164a..f91afb4 100644
--- a/unix/zsyscall_linux_mips.go
+++ b/unix/zsyscall_linux_mips.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_mips64.go b/unix/zsyscall_linux_mips64.go
index a26cad4..657d11e 100644
--- a/unix/zsyscall_linux_mips64.go
+++ b/unix/zsyscall_linux_mips64.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_mips64le.go b/unix/zsyscall_linux_mips64le.go
index 7cc92ad..31ff177 100644
--- a/unix/zsyscall_linux_mips64le.go
+++ b/unix/zsyscall_linux_mips64le.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_mipsle.go b/unix/zsyscall_linux_mipsle.go
index 79f26e5..797e633 100644
--- a/unix/zsyscall_linux_mipsle.go
+++ b/unix/zsyscall_linux_mipsle.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_ppc64.go b/unix/zsyscall_linux_ppc64.go
index 27befca..307dbb5 100644
--- a/unix/zsyscall_linux_ppc64.go
+++ b/unix/zsyscall_linux_ppc64.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_ppc64le.go b/unix/zsyscall_linux_ppc64le.go
index 0dc288e..f458a63 100644
--- a/unix/zsyscall_linux_ppc64le.go
+++ b/unix/zsyscall_linux_ppc64le.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_s390x.go b/unix/zsyscall_linux_s390x.go
index 33c086b..b1d5a9b 100644
--- a/unix/zsyscall_linux_s390x.go
+++ b/unix/zsyscall_linux_s390x.go
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_linux_sparc64.go b/unix/zsyscall_linux_sparc64.go
index 071b85c..ce3ec58 100644
--- a/unix/zsyscall_linux_sparc64.go
+++ b/unix/zsyscall_linux_sparc64.go
@@ -1,7 +1,7 @@
-// mksyscall.pl syscall_linux.go syscall_linux_sparc64.go
+// mksyscall.pl -tags linux,sparc64 syscall_linux.go syscall_linux_sparc64.go
 // MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
 
-// +build
+// +build linux,sparc64
 
 package unix
 
@@ -543,6 +543,23 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getrandom(buf []byte, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_GETRANDOM, uintptr(_p0), uintptr(len(buf)), uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrusage(who int, rusage *Rusage) (err error) {
 	_, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
 	if e1 != 0 {