diff --git a/unix/syscall_solaris.go b/unix/syscall_solaris.go
index 5c2003ce..932996c7 100644
--- a/unix/syscall_solaris.go
+++ b/unix/syscall_solaris.go
@@ -618,6 +618,7 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sys	Getpriority(which int, who int) (n int, err error)
 //sysnb	Getrlimit(which int, lim *Rlimit) (err error)
 //sysnb	Getrusage(who int, rusage *Rusage) (err error)
+//sysnb	Getsid(pid int) (sid int, err error)
 //sysnb	Gettimeofday(tv *Timeval) (err error)
 //sysnb	Getuid() (uid int)
 //sys	Kill(pid int, signum syscall.Signal) (err error)
diff --git a/unix/zsyscall_solaris_amd64.go b/unix/zsyscall_solaris_amd64.go
index d12f4fbf..fdf53f8d 100644
--- a/unix/zsyscall_solaris_amd64.go
+++ b/unix/zsyscall_solaris_amd64.go
@@ -66,6 +66,7 @@ import (
 //go:cgo_import_dynamic libc_getpriority getpriority "libc.so"
 //go:cgo_import_dynamic libc_getrlimit getrlimit "libc.so"
 //go:cgo_import_dynamic libc_getrusage getrusage "libc.so"
+//go:cgo_import_dynamic libc_getsid getsid "libc.so"
 //go:cgo_import_dynamic libc_gettimeofday gettimeofday "libc.so"
 //go:cgo_import_dynamic libc_getuid getuid "libc.so"
 //go:cgo_import_dynamic libc_kill kill "libc.so"
@@ -202,6 +203,7 @@ import (
 //go:linkname procGetpriority libc_getpriority
 //go:linkname procGetrlimit libc_getrlimit
 //go:linkname procGetrusage libc_getrusage
+//go:linkname procGetsid libc_getsid
 //go:linkname procGettimeofday libc_gettimeofday
 //go:linkname procGetuid libc_getuid
 //go:linkname procKill libc_kill
@@ -339,6 +341,7 @@ var (
 	procGetpriority,
 	procGetrlimit,
 	procGetrusage,
+	procGetsid,
 	procGettimeofday,
 	procGetuid,
 	procKill,
@@ -1044,6 +1047,17 @@ func Getrusage(who int, rusage *Rusage) (err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getsid(pid int) (sid int, err error) {
+	r0, _, e1 := rawSysvicall6(uintptr(unsafe.Pointer(&procGetsid)), 1, uintptr(pid), 0, 0, 0, 0, 0)
+	sid = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Gettimeofday(tv *Timeval) (err error) {
 	_, _, e1 := rawSysvicall6(uintptr(unsafe.Pointer(&procGettimeofday)), 1, uintptr(unsafe.Pointer(tv)), 0, 0, 0, 0, 0)
 	if e1 != 0 {