diff --git a/unix/linux/types.go b/unix/linux/types.go
index 2287618e..38cfb278 100644
--- a/unix/linux/types.go
+++ b/unix/linux/types.go
@@ -959,6 +959,12 @@ type Sigset_t C.sigset_t
 
 const _C__NSIG = C._NSIG
 
+const (
+	SIG_BLOCK   = C.SIG_BLOCK
+	SIG_UNBLOCK = C.SIG_UNBLOCK
+	SIG_SETMASK = C.SIG_SETMASK
+)
+
 type SignalfdSiginfo C.struct_signalfd_siginfo
 
 type Siginfo C.siginfo_t
diff --git a/unix/ztypes_linux_386.go b/unix/ztypes_linux_386.go
index 26360440..89c516a2 100644
--- a/unix/ztypes_linux_386.go
+++ b/unix/ztypes_linux_386.go
@@ -254,6 +254,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_amd64.go b/unix/ztypes_linux_amd64.go
index 8187489d..62b4fb26 100644
--- a/unix/ztypes_linux_amd64.go
+++ b/unix/ztypes_linux_amd64.go
@@ -269,6 +269,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_arm.go b/unix/ztypes_linux_arm.go
index d1612335..e86b3589 100644
--- a/unix/ztypes_linux_arm.go
+++ b/unix/ztypes_linux_arm.go
@@ -245,6 +245,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_arm64.go b/unix/ztypes_linux_arm64.go
index c28e5556..6c6be4c9 100644
--- a/unix/ztypes_linux_arm64.go
+++ b/unix/ztypes_linux_arm64.go
@@ -248,6 +248,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_loong64.go b/unix/ztypes_linux_loong64.go
index 187061f9..4982ea35 100644
--- a/unix/ztypes_linux_loong64.go
+++ b/unix/ztypes_linux_loong64.go
@@ -249,6 +249,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_mips.go b/unix/ztypes_linux_mips.go
index 36912991..173141a6 100644
--- a/unix/ztypes_linux_mips.go
+++ b/unix/ztypes_linux_mips.go
@@ -250,6 +250,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x80
 
+const (
+	SIG_BLOCK   = 0x1
+	SIG_UNBLOCK = 0x2
+	SIG_SETMASK = 0x3
+)
+
 type Siginfo struct {
 	Signo int32
 	Code  int32
diff --git a/unix/ztypes_linux_mips64.go b/unix/ztypes_linux_mips64.go
index 7473468d..93ae4c51 100644
--- a/unix/ztypes_linux_mips64.go
+++ b/unix/ztypes_linux_mips64.go
@@ -251,6 +251,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x80
 
+const (
+	SIG_BLOCK   = 0x1
+	SIG_UNBLOCK = 0x2
+	SIG_SETMASK = 0x3
+)
+
 type Siginfo struct {
 	Signo int32
 	Code  int32
diff --git a/unix/ztypes_linux_mips64le.go b/unix/ztypes_linux_mips64le.go
index ed944852..4e4e510c 100644
--- a/unix/ztypes_linux_mips64le.go
+++ b/unix/ztypes_linux_mips64le.go
@@ -251,6 +251,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x80
 
+const (
+	SIG_BLOCK   = 0x1
+	SIG_UNBLOCK = 0x2
+	SIG_SETMASK = 0x3
+)
+
 type Siginfo struct {
 	Signo int32
 	Code  int32
diff --git a/unix/ztypes_linux_mipsle.go b/unix/ztypes_linux_mipsle.go
index 0892a73a..3f5ba013 100644
--- a/unix/ztypes_linux_mipsle.go
+++ b/unix/ztypes_linux_mipsle.go
@@ -250,6 +250,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x80
 
+const (
+	SIG_BLOCK   = 0x1
+	SIG_UNBLOCK = 0x2
+	SIG_SETMASK = 0x3
+)
+
 type Siginfo struct {
 	Signo int32
 	Code  int32
diff --git a/unix/ztypes_linux_ppc.go b/unix/ztypes_linux_ppc.go
index e1dd4833..71dfe7cd 100644
--- a/unix/ztypes_linux_ppc.go
+++ b/unix/ztypes_linux_ppc.go
@@ -257,6 +257,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_ppc64.go b/unix/ztypes_linux_ppc64.go
index d9f654c7..3a2b7f0a 100644
--- a/unix/ztypes_linux_ppc64.go
+++ b/unix/ztypes_linux_ppc64.go
@@ -258,6 +258,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_ppc64le.go b/unix/ztypes_linux_ppc64le.go
index 74acda9f..a52d6275 100644
--- a/unix/ztypes_linux_ppc64le.go
+++ b/unix/ztypes_linux_ppc64le.go
@@ -258,6 +258,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_riscv64.go b/unix/ztypes_linux_riscv64.go
index 50ebe69e..dfc007d8 100644
--- a/unix/ztypes_linux_riscv64.go
+++ b/unix/ztypes_linux_riscv64.go
@@ -276,6 +276,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_s390x.go b/unix/ztypes_linux_s390x.go
index 75b34c25..b53cb910 100644
--- a/unix/ztypes_linux_s390x.go
+++ b/unix/ztypes_linux_s390x.go
@@ -271,6 +271,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x0
+	SIG_UNBLOCK = 0x1
+	SIG_SETMASK = 0x2
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32
diff --git a/unix/ztypes_linux_sparc64.go b/unix/ztypes_linux_sparc64.go
index 429c3bf7..fe0aa354 100644
--- a/unix/ztypes_linux_sparc64.go
+++ b/unix/ztypes_linux_sparc64.go
@@ -253,6 +253,12 @@ type Sigset_t struct {
 
 const _C__NSIG = 0x41
 
+const (
+	SIG_BLOCK   = 0x1
+	SIG_UNBLOCK = 0x2
+	SIG_SETMASK = 0x4
+)
+
 type Siginfo struct {
 	Signo int32
 	Errno int32