diff --git a/unix/mkerrors.sh b/unix/mkerrors.sh
index 5fcd7a2..08dd775 100755
--- a/unix/mkerrors.sh
+++ b/unix/mkerrors.sh
@@ -45,6 +45,7 @@
 #include <sys/sockio.h>
 #include <sys/sysctl.h>
 #include <sys/mman.h>
+#include <sys/mount.h>
 #include <sys/wait.h>
 #include <net/bpf.h>
 #include <net/if.h>
diff --git a/unix/zerrors_darwin_386.go b/unix/zerrors_darwin_386.go
index bb79743..1c68758 100644
--- a/unix/zerrors_darwin_386.go
+++ b/unix/zerrors_darwin_386.go
@@ -822,6 +822,38 @@
 	MAP_SHARED                        = 0x1
 	MCL_CURRENT                       = 0x1
 	MCL_FUTURE                        = 0x2
+	MNT_ASYNC                         = 0x40
+	MNT_AUTOMOUNTED                   = 0x400000
+	MNT_CMDFLAGS                      = 0xf0000
+	MNT_CPROTECT                      = 0x80
+	MNT_DEFWRITE                      = 0x2000000
+	MNT_DONTBROWSE                    = 0x100000
+	MNT_DOVOLFS                       = 0x8000
+	MNT_DWAIT                         = 0x4
+	MNT_EXPORTED                      = 0x100
+	MNT_FORCE                         = 0x80000
+	MNT_IGNORE_OWNERSHIP              = 0x200000
+	MNT_JOURNALED                     = 0x800000
+	MNT_LOCAL                         = 0x1000
+	MNT_MULTILABEL                    = 0x4000000
+	MNT_NOATIME                       = 0x10000000
+	MNT_NOBLOCK                       = 0x20000
+	MNT_NODEV                         = 0x10
+	MNT_NOEXEC                        = 0x4
+	MNT_NOSUID                        = 0x8
+	MNT_NOUSERXATTR                   = 0x1000000
+	MNT_NOWAIT                        = 0x2
+	MNT_QUARANTINE                    = 0x400
+	MNT_QUOTA                         = 0x2000
+	MNT_RDONLY                        = 0x1
+	MNT_RELOAD                        = 0x40000
+	MNT_ROOTFS                        = 0x4000
+	MNT_SYNCHRONOUS                   = 0x2
+	MNT_UNION                         = 0x20
+	MNT_UNKNOWNPERMISSIONS            = 0x200000
+	MNT_UPDATE                        = 0x10000
+	MNT_VISFLAGMASK                   = 0x17f0f5ff
+	MNT_WAIT                          = 0x1
 	MSG_CTRUNC                        = 0x20
 	MSG_DONTROUTE                     = 0x4
 	MSG_DONTWAIT                      = 0x80
diff --git a/unix/zerrors_darwin_amd64.go b/unix/zerrors_darwin_amd64.go
index ce8da84..48f63d4 100644
--- a/unix/zerrors_darwin_amd64.go
+++ b/unix/zerrors_darwin_amd64.go
@@ -822,6 +822,38 @@
 	MAP_SHARED                        = 0x1
 	MCL_CURRENT                       = 0x1
 	MCL_FUTURE                        = 0x2
+	MNT_ASYNC                         = 0x40
+	MNT_AUTOMOUNTED                   = 0x400000
+	MNT_CMDFLAGS                      = 0xf0000
+	MNT_CPROTECT                      = 0x80
+	MNT_DEFWRITE                      = 0x2000000
+	MNT_DONTBROWSE                    = 0x100000
+	MNT_DOVOLFS                       = 0x8000
+	MNT_DWAIT                         = 0x4
+	MNT_EXPORTED                      = 0x100
+	MNT_FORCE                         = 0x80000
+	MNT_IGNORE_OWNERSHIP              = 0x200000
+	MNT_JOURNALED                     = 0x800000
+	MNT_LOCAL                         = 0x1000
+	MNT_MULTILABEL                    = 0x4000000
+	MNT_NOATIME                       = 0x10000000
+	MNT_NOBLOCK                       = 0x20000
+	MNT_NODEV                         = 0x10
+	MNT_NOEXEC                        = 0x4
+	MNT_NOSUID                        = 0x8
+	MNT_NOUSERXATTR                   = 0x1000000
+	MNT_NOWAIT                        = 0x2
+	MNT_QUARANTINE                    = 0x400
+	MNT_QUOTA                         = 0x2000
+	MNT_RDONLY                        = 0x1
+	MNT_RELOAD                        = 0x40000
+	MNT_ROOTFS                        = 0x4000
+	MNT_SYNCHRONOUS                   = 0x2
+	MNT_UNION                         = 0x20
+	MNT_UNKNOWNPERMISSIONS            = 0x200000
+	MNT_UPDATE                        = 0x10000
+	MNT_VISFLAGMASK                   = 0x17f0f5ff
+	MNT_WAIT                          = 0x1
 	MSG_CTRUNC                        = 0x20
 	MSG_DONTROUTE                     = 0x4
 	MSG_DONTWAIT                      = 0x80
diff --git a/unix/zerrors_darwin_arm.go b/unix/zerrors_darwin_arm.go
index a410e88..24cb522 100644
--- a/unix/zerrors_darwin_arm.go
+++ b/unix/zerrors_darwin_arm.go
@@ -1,11 +1,11 @@
 // mkerrors.sh
-// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build arm,darwin
 
 // Created by cgo -godefs - DO NOT EDIT
 // cgo -godefs -- _const.go
 
-// +build arm,darwin
-
 package unix
 
 import "syscall"
@@ -48,6 +48,7 @@
 	AF_UNIX                           = 0x1
 	AF_UNSPEC                         = 0x0
 	AF_UTUN                           = 0x26
+	ALTWERASE                         = 0x200
 	B0                                = 0x0
 	B110                              = 0x6e
 	B115200                           = 0x1c200
@@ -86,6 +87,7 @@
 	BIOCSBLEN                         = 0xc0044266
 	BIOCSDLT                          = 0x80044278
 	BIOCSETF                          = 0x80104267
+	BIOCSETFNR                        = 0x8010427e
 	BIOCSETIF                         = 0x8020426c
 	BIOCSHDRCMPLT                     = 0x80044275
 	BIOCSRSIG                         = 0x80044273
@@ -137,9 +139,26 @@
 	BPF_W                             = 0x0
 	BPF_X                             = 0x8
 	BRKINT                            = 0x2
+	BS0                               = 0x0
+	BS1                               = 0x8000
+	BSDLY                             = 0x8000
 	CFLUSH                            = 0xf
 	CLOCAL                            = 0x8000
+	CLOCK_MONOTONIC                   = 0x6
+	CLOCK_MONOTONIC_RAW               = 0x4
+	CLOCK_MONOTONIC_RAW_APPROX        = 0x5
+	CLOCK_PROCESS_CPUTIME_ID          = 0xc
+	CLOCK_REALTIME                    = 0x0
+	CLOCK_THREAD_CPUTIME_ID           = 0x10
+	CLOCK_UPTIME_RAW                  = 0x8
+	CLOCK_UPTIME_RAW_APPROX           = 0x9
+	CR0                               = 0x0
+	CR1                               = 0x1000
+	CR2                               = 0x2000
+	CR3                               = 0x3000
+	CRDLY                             = 0x3000
 	CREAD                             = 0x800
+	CRTSCTS                           = 0x30000
 	CS5                               = 0x0
 	CS6                               = 0x100
 	CS7                               = 0x200
@@ -152,33 +171,168 @@
 	CSUSP                             = 0x1a
 	CTL_MAXNAME                       = 0xc
 	CTL_NET                           = 0x4
+	DLT_A429                          = 0xb8
+	DLT_A653_ICM                      = 0xb9
+	DLT_AIRONET_HEADER                = 0x78
+	DLT_AOS                           = 0xde
 	DLT_APPLE_IP_OVER_IEEE1394        = 0x8a
 	DLT_ARCNET                        = 0x7
+	DLT_ARCNET_LINUX                  = 0x81
 	DLT_ATM_CLIP                      = 0x13
 	DLT_ATM_RFC1483                   = 0xb
+	DLT_AURORA                        = 0x7e
 	DLT_AX25                          = 0x3
+	DLT_AX25_KISS                     = 0xca
+	DLT_BACNET_MS_TP                  = 0xa5
+	DLT_BLUETOOTH_HCI_H4              = 0xbb
+	DLT_BLUETOOTH_HCI_H4_WITH_PHDR    = 0xc9
+	DLT_CAN20B                        = 0xbe
+	DLT_CAN_SOCKETCAN                 = 0xe3
 	DLT_CHAOS                         = 0x5
 	DLT_CHDLC                         = 0x68
+	DLT_CISCO_IOS                     = 0x76
 	DLT_C_HDLC                        = 0x68
+	DLT_C_HDLC_WITH_DIR               = 0xcd
+	DLT_DBUS                          = 0xe7
+	DLT_DECT                          = 0xdd
+	DLT_DOCSIS                        = 0x8f
+	DLT_DVB_CI                        = 0xeb
+	DLT_ECONET                        = 0x73
 	DLT_EN10MB                        = 0x1
 	DLT_EN3MB                         = 0x2
+	DLT_ENC                           = 0x6d
+	DLT_ERF                           = 0xc5
+	DLT_ERF_ETH                       = 0xaf
+	DLT_ERF_POS                       = 0xb0
+	DLT_FC_2                          = 0xe0
+	DLT_FC_2_WITH_FRAME_DELIMS        = 0xe1
 	DLT_FDDI                          = 0xa
+	DLT_FLEXRAY                       = 0xd2
+	DLT_FRELAY                        = 0x6b
+	DLT_FRELAY_WITH_DIR               = 0xce
+	DLT_GCOM_SERIAL                   = 0xad
+	DLT_GCOM_T1E1                     = 0xac
+	DLT_GPF_F                         = 0xab
+	DLT_GPF_T                         = 0xaa
+	DLT_GPRS_LLC                      = 0xa9
+	DLT_GSMTAP_ABIS                   = 0xda
+	DLT_GSMTAP_UM                     = 0xd9
+	DLT_HHDLC                         = 0x79
+	DLT_IBM_SN                        = 0x92
+	DLT_IBM_SP                        = 0x91
 	DLT_IEEE802                       = 0x6
 	DLT_IEEE802_11                    = 0x69
 	DLT_IEEE802_11_RADIO              = 0x7f
 	DLT_IEEE802_11_RADIO_AVS          = 0xa3
+	DLT_IEEE802_15_4                  = 0xc3
+	DLT_IEEE802_15_4_LINUX            = 0xbf
+	DLT_IEEE802_15_4_NOFCS            = 0xe6
+	DLT_IEEE802_15_4_NONASK_PHY       = 0xd7
+	DLT_IEEE802_16_MAC_CPS            = 0xbc
+	DLT_IEEE802_16_MAC_CPS_RADIO      = 0xc1
+	DLT_IPFILTER                      = 0x74
+	DLT_IPMB                          = 0xc7
+	DLT_IPMB_LINUX                    = 0xd1
+	DLT_IPNET                         = 0xe2
+	DLT_IPOIB                         = 0xf2
+	DLT_IPV4                          = 0xe4
+	DLT_IPV6                          = 0xe5
+	DLT_IP_OVER_FC                    = 0x7a
+	DLT_JUNIPER_ATM1                  = 0x89
+	DLT_JUNIPER_ATM2                  = 0x87
+	DLT_JUNIPER_ATM_CEMIC             = 0xee
+	DLT_JUNIPER_CHDLC                 = 0xb5
+	DLT_JUNIPER_ES                    = 0x84
+	DLT_JUNIPER_ETHER                 = 0xb2
+	DLT_JUNIPER_FIBRECHANNEL          = 0xea
+	DLT_JUNIPER_FRELAY                = 0xb4
+	DLT_JUNIPER_GGSN                  = 0x85
+	DLT_JUNIPER_ISM                   = 0xc2
+	DLT_JUNIPER_MFR                   = 0x86
+	DLT_JUNIPER_MLFR                  = 0x83
+	DLT_JUNIPER_MLPPP                 = 0x82
+	DLT_JUNIPER_MONITOR               = 0xa4
+	DLT_JUNIPER_PIC_PEER              = 0xae
+	DLT_JUNIPER_PPP                   = 0xb3
+	DLT_JUNIPER_PPPOE                 = 0xa7
+	DLT_JUNIPER_PPPOE_ATM             = 0xa8
+	DLT_JUNIPER_SERVICES              = 0x88
+	DLT_JUNIPER_SRX_E2E               = 0xe9
+	DLT_JUNIPER_ST                    = 0xc8
+	DLT_JUNIPER_VP                    = 0xb7
+	DLT_JUNIPER_VS                    = 0xe8
+	DLT_LAPB_WITH_DIR                 = 0xcf
+	DLT_LAPD                          = 0xcb
+	DLT_LIN                           = 0xd4
+	DLT_LINUX_EVDEV                   = 0xd8
+	DLT_LINUX_IRDA                    = 0x90
+	DLT_LINUX_LAPD                    = 0xb1
+	DLT_LINUX_PPP_WITHDIRECTION       = 0xa6
 	DLT_LINUX_SLL                     = 0x71
 	DLT_LOOP                          = 0x6c
+	DLT_LTALK                         = 0x72
+	DLT_MATCHING_MAX                  = 0xf5
+	DLT_MATCHING_MIN                  = 0x68
+	DLT_MFR                           = 0xb6
+	DLT_MOST                          = 0xd3
+	DLT_MPEG_2_TS                     = 0xf3
+	DLT_MPLS                          = 0xdb
+	DLT_MTP2                          = 0x8c
+	DLT_MTP2_WITH_PHDR                = 0x8b
+	DLT_MTP3                          = 0x8d
+	DLT_MUX27010                      = 0xec
+	DLT_NETANALYZER                   = 0xf0
+	DLT_NETANALYZER_TRANSPARENT       = 0xf1
+	DLT_NFC_LLCP                      = 0xf5
+	DLT_NFLOG                         = 0xef
+	DLT_NG40                          = 0xf4
 	DLT_NULL                          = 0x0
+	DLT_PCI_EXP                       = 0x7d
 	DLT_PFLOG                         = 0x75
 	DLT_PFSYNC                        = 0x12
+	DLT_PPI                           = 0xc0
 	DLT_PPP                           = 0x9
 	DLT_PPP_BSDOS                     = 0x10
+	DLT_PPP_ETHER                     = 0x33
+	DLT_PPP_PPPD                      = 0xa6
 	DLT_PPP_SERIAL                    = 0x32
+	DLT_PPP_WITH_DIR                  = 0xcc
+	DLT_PPP_WITH_DIRECTION            = 0xa6
+	DLT_PRISM_HEADER                  = 0x77
 	DLT_PRONET                        = 0x4
+	DLT_RAIF1                         = 0xc6
 	DLT_RAW                           = 0xc
+	DLT_RIO                           = 0x7c
+	DLT_SCCP                          = 0x8e
+	DLT_SITA                          = 0xc4
 	DLT_SLIP                          = 0x8
 	DLT_SLIP_BSDOS                    = 0xf
+	DLT_STANAG_5066_D_PDU             = 0xed
+	DLT_SUNATM                        = 0x7b
+	DLT_SYMANTEC_FIREWALL             = 0x63
+	DLT_TZSP                          = 0x80
+	DLT_USB                           = 0xba
+	DLT_USB_LINUX                     = 0xbd
+	DLT_USB_LINUX_MMAPPED             = 0xdc
+	DLT_USER0                         = 0x93
+	DLT_USER1                         = 0x94
+	DLT_USER10                        = 0x9d
+	DLT_USER11                        = 0x9e
+	DLT_USER12                        = 0x9f
+	DLT_USER13                        = 0xa0
+	DLT_USER14                        = 0xa1
+	DLT_USER15                        = 0xa2
+	DLT_USER2                         = 0x95
+	DLT_USER3                         = 0x96
+	DLT_USER4                         = 0x97
+	DLT_USER5                         = 0x98
+	DLT_USER6                         = 0x99
+	DLT_USER7                         = 0x9a
+	DLT_USER8                         = 0x9b
+	DLT_USER9                         = 0x9c
+	DLT_WIHART                        = 0xdf
+	DLT_X2E_SERIAL                    = 0xd5
+	DLT_X2E_XORAYA                    = 0xd6
 	DT_BLK                            = 0x6
 	DT_CHR                            = 0x2
 	DT_DIR                            = 0x4
@@ -196,13 +350,14 @@
 	ECHONL                            = 0x10
 	ECHOPRT                           = 0x20
 	EVFILT_AIO                        = -0x3
+	EVFILT_EXCEPT                     = -0xf
 	EVFILT_FS                         = -0x9
 	EVFILT_MACHPORT                   = -0x8
 	EVFILT_PROC                       = -0x5
 	EVFILT_READ                       = -0x1
 	EVFILT_SIGNAL                     = -0x6
-	EVFILT_SYSCOUNT                   = 0xe
-	EVFILT_THREADMARKER               = 0xe
+	EVFILT_SYSCOUNT                   = 0xf
+	EVFILT_THREADMARKER               = 0xf
 	EVFILT_TIMER                      = -0x7
 	EVFILT_USER                       = -0xa
 	EVFILT_VM                         = -0xc
@@ -213,6 +368,7 @@
 	EV_DELETE                         = 0x2
 	EV_DISABLE                        = 0x8
 	EV_DISPATCH                       = 0x80
+	EV_DISPATCH2                      = 0x180
 	EV_ENABLE                         = 0x4
 	EV_EOF                            = 0x8000
 	EV_ERROR                          = 0x4000
@@ -223,16 +379,25 @@
 	EV_POLL                           = 0x1000
 	EV_RECEIPT                        = 0x40
 	EV_SYSFLAGS                       = 0xf000
+	EV_UDATA_SPECIFIC                 = 0x100
+	EV_VANISHED                       = 0x200
 	EXTA                              = 0x4b00
 	EXTB                              = 0x9600
 	EXTPROC                           = 0x800
 	FD_CLOEXEC                        = 0x1
 	FD_SETSIZE                        = 0x400
+	FF0                               = 0x0
+	FF1                               = 0x4000
+	FFDLY                             = 0x4000
 	FLUSHO                            = 0x800000
 	F_ADDFILESIGS                     = 0x3d
+	F_ADDFILESIGS_FOR_DYLD_SIM        = 0x53
+	F_ADDFILESIGS_RETURN              = 0x61
 	F_ADDSIGS                         = 0x3b
 	F_ALLOCATEALL                     = 0x4
 	F_ALLOCATECONTIG                  = 0x2
+	F_BARRIERFSYNC                    = 0x55
+	F_CHECK_LV                        = 0x62
 	F_CHKCLEAN                        = 0x29
 	F_DUPFD                           = 0x0
 	F_DUPFD_CLOEXEC                   = 0x43
@@ -347,6 +512,7 @@
 	IFT_PDP                           = 0xff
 	IFT_PFLOG                         = 0xf5
 	IFT_PFSYNC                        = 0xf6
+	IFT_PKTAP                         = 0xfe
 	IFT_PPP                           = 0x17
 	IFT_PROPMUX                       = 0x36
 	IFT_PROPVIRTUAL                   = 0x35
@@ -515,7 +681,7 @@
 	IPV6_FAITH                        = 0x1d
 	IPV6_FLOWINFO_MASK                = 0xffffff0f
 	IPV6_FLOWLABEL_MASK               = 0xffff0f00
-	IPV6_FRAGTTL                      = 0x78
+	IPV6_FRAGTTL                      = 0x3c
 	IPV6_FW_ADD                       = 0x1e
 	IPV6_FW_DEL                       = 0x1f
 	IPV6_FW_FLUSH                     = 0x20
@@ -633,11 +799,13 @@
 	MADV_FREE_REUSABLE                = 0x7
 	MADV_FREE_REUSE                   = 0x8
 	MADV_NORMAL                       = 0x0
+	MADV_PAGEOUT                      = 0xa
 	MADV_RANDOM                       = 0x1
 	MADV_SEQUENTIAL                   = 0x2
 	MADV_WILLNEED                     = 0x3
 	MADV_ZERO_WIRED_PAGES             = 0x6
 	MAP_ANON                          = 0x1000
+	MAP_ANONYMOUS                     = 0x1000
 	MAP_COPY                          = 0x2
 	MAP_FILE                          = 0x0
 	MAP_FIXED                         = 0x10
@@ -649,9 +817,43 @@
 	MAP_PRIVATE                       = 0x2
 	MAP_RENAME                        = 0x20
 	MAP_RESERVED0080                  = 0x80
+	MAP_RESILIENT_CODESIGN            = 0x2000
+	MAP_RESILIENT_MEDIA               = 0x4000
 	MAP_SHARED                        = 0x1
 	MCL_CURRENT                       = 0x1
 	MCL_FUTURE                        = 0x2
+	MNT_ASYNC                         = 0x40
+	MNT_AUTOMOUNTED                   = 0x400000
+	MNT_CMDFLAGS                      = 0xf0000
+	MNT_CPROTECT                      = 0x80
+	MNT_DEFWRITE                      = 0x2000000
+	MNT_DONTBROWSE                    = 0x100000
+	MNT_DOVOLFS                       = 0x8000
+	MNT_DWAIT                         = 0x4
+	MNT_EXPORTED                      = 0x100
+	MNT_FORCE                         = 0x80000
+	MNT_IGNORE_OWNERSHIP              = 0x200000
+	MNT_JOURNALED                     = 0x800000
+	MNT_LOCAL                         = 0x1000
+	MNT_MULTILABEL                    = 0x4000000
+	MNT_NOATIME                       = 0x10000000
+	MNT_NOBLOCK                       = 0x20000
+	MNT_NODEV                         = 0x10
+	MNT_NOEXEC                        = 0x4
+	MNT_NOSUID                        = 0x8
+	MNT_NOUSERXATTR                   = 0x1000000
+	MNT_NOWAIT                        = 0x2
+	MNT_QUARANTINE                    = 0x400
+	MNT_QUOTA                         = 0x2000
+	MNT_RDONLY                        = 0x1
+	MNT_RELOAD                        = 0x40000
+	MNT_ROOTFS                        = 0x4000
+	MNT_SYNCHRONOUS                   = 0x2
+	MNT_UNION                         = 0x20
+	MNT_UNKNOWNPERMISSIONS            = 0x200000
+	MNT_UPDATE                        = 0x10000
+	MNT_VISFLAGMASK                   = 0x17f0f5ff
+	MNT_WAIT                          = 0x1
 	MSG_CTRUNC                        = 0x20
 	MSG_DONTROUTE                     = 0x4
 	MSG_DONTWAIT                      = 0x80
@@ -682,7 +884,13 @@
 	NET_RT_MAXID                      = 0xa
 	NET_RT_STAT                       = 0x4
 	NET_RT_TRASH                      = 0x5
+	NL0                               = 0x0
+	NL1                               = 0x100
+	NL2                               = 0x200
+	NL3                               = 0x300
+	NLDLY                             = 0x300
 	NOFLSH                            = 0x80000000
+	NOKERNINFO                        = 0x2000000
 	NOTE_ABSOLUTE                     = 0x8
 	NOTE_ATTRIB                       = 0x8
 	NOTE_BACKGROUND                   = 0x40
@@ -706,11 +914,14 @@
 	NOTE_FFNOP                        = 0x0
 	NOTE_FFOR                         = 0x80000000
 	NOTE_FORK                         = 0x40000000
+	NOTE_FUNLOCK                      = 0x100
 	NOTE_LEEWAY                       = 0x10
 	NOTE_LINK                         = 0x10
 	NOTE_LOWAT                        = 0x1
+	NOTE_MACH_CONTINUOUS_TIME         = 0x80
 	NOTE_NONE                         = 0x80
 	NOTE_NSECONDS                     = 0x4
+	NOTE_OOB                          = 0x2
 	NOTE_PCTRLMASK                    = -0x100000
 	NOTE_PDATAMASK                    = 0xfffff
 	NOTE_REAP                         = 0x10000000
@@ -735,6 +946,7 @@
 	ONOCR                             = 0x20
 	ONOEOT                            = 0x8
 	OPOST                             = 0x1
+	OXTABS                            = 0x4
 	O_ACCMODE                         = 0x3
 	O_ALERT                           = 0x20000000
 	O_APPEND                          = 0x8
@@ -743,6 +955,7 @@
 	O_CREAT                           = 0x200
 	O_DIRECTORY                       = 0x100000
 	O_DP_GETRAWENCRYPTED              = 0x1
+	O_DP_GETRAWUNENCRYPTED            = 0x2
 	O_DSYNC                           = 0x400000
 	O_EVTONLY                         = 0x8000
 	O_EXCL                            = 0x800
@@ -795,7 +1008,10 @@
 	RLIMIT_CPU_USAGE_MONITOR          = 0x2
 	RLIMIT_DATA                       = 0x2
 	RLIMIT_FSIZE                      = 0x1
+	RLIMIT_MEMLOCK                    = 0x6
 	RLIMIT_NOFILE                     = 0x8
+	RLIMIT_NPROC                      = 0x7
+	RLIMIT_RSS                        = 0x5
 	RLIMIT_STACK                      = 0x3
 	RLIM_INFINITY                     = 0x7fffffffffffffff
 	RTAX_AUTHOR                       = 0x6
@@ -830,6 +1046,7 @@
 	RTF_LOCAL                         = 0x200000
 	RTF_MODIFIED                      = 0x20
 	RTF_MULTICAST                     = 0x800000
+	RTF_NOIFREF                       = 0x2000
 	RTF_PINNED                        = 0x100000
 	RTF_PRCLONING                     = 0x10000
 	RTF_PROTO1                        = 0x8000
@@ -964,6 +1181,8 @@
 	SO_LABEL                          = 0x1010
 	SO_LINGER                         = 0x80
 	SO_LINGER_SEC                     = 0x1080
+	SO_NETSVC_MARKING_LEVEL           = 0x1119
+	SO_NET_SERVICE_TYPE               = 0x1116
 	SO_NKE                            = 0x1021
 	SO_NOADDRERR                      = 0x1023
 	SO_NOSIGPIPE                      = 0x1022
@@ -1019,11 +1238,22 @@
 	S_IXGRP                           = 0x8
 	S_IXOTH                           = 0x1
 	S_IXUSR                           = 0x40
+	TAB0                              = 0x0
+	TAB1                              = 0x400
+	TAB2                              = 0x800
+	TAB3                              = 0x4
+	TABDLY                            = 0xc04
 	TCIFLUSH                          = 0x1
+	TCIOFF                            = 0x3
 	TCIOFLUSH                         = 0x3
+	TCION                             = 0x4
 	TCOFLUSH                          = 0x2
+	TCOOFF                            = 0x1
+	TCOON                             = 0x2
 	TCP_CONNECTIONTIMEOUT             = 0x20
+	TCP_CONNECTION_INFO               = 0x106
 	TCP_ENABLE_ECN                    = 0x104
+	TCP_FASTOPEN                      = 0x105
 	TCP_KEEPALIVE                     = 0x10
 	TCP_KEEPCNT                       = 0x102
 	TCP_KEEPINTVL                     = 0x101
@@ -1123,6 +1353,11 @@
 	VKILL                             = 0x5
 	VLNEXT                            = 0xe
 	VMIN                              = 0x10
+	VM_LOADAVG                        = 0x2
+	VM_MACHFACTOR                     = 0x4
+	VM_MAXID                          = 0x6
+	VM_METER                          = 0x1
+	VM_SWAPUSAGE                      = 0x5
 	VQUIT                             = 0x9
 	VREPRINT                          = 0x6
 	VSTART                            = 0xc
@@ -1291,3 +1526,148 @@
 	SIGXCPU   = syscall.Signal(0x18)
 	SIGXFSZ   = syscall.Signal(0x19)
 )
+
+// Error table
+var errors = [...]string{
+	1:   "operation not permitted",
+	2:   "no such file or directory",
+	3:   "no such process",
+	4:   "interrupted system call",
+	5:   "input/output error",
+	6:   "device not configured",
+	7:   "argument list too long",
+	8:   "exec format error",
+	9:   "bad file descriptor",
+	10:  "no child processes",
+	11:  "resource deadlock avoided",
+	12:  "cannot allocate memory",
+	13:  "permission denied",
+	14:  "bad address",
+	15:  "block device required",
+	16:  "resource busy",
+	17:  "file exists",
+	18:  "cross-device link",
+	19:  "operation not supported by device",
+	20:  "not a directory",
+	21:  "is a directory",
+	22:  "invalid argument",
+	23:  "too many open files in system",
+	24:  "too many open files",
+	25:  "inappropriate ioctl for device",
+	26:  "text file busy",
+	27:  "file too large",
+	28:  "no space left on device",
+	29:  "illegal seek",
+	30:  "read-only file system",
+	31:  "too many links",
+	32:  "broken pipe",
+	33:  "numerical argument out of domain",
+	34:  "result too large",
+	35:  "resource temporarily unavailable",
+	36:  "operation now in progress",
+	37:  "operation already in progress",
+	38:  "socket operation on non-socket",
+	39:  "destination address required",
+	40:  "message too long",
+	41:  "protocol wrong type for socket",
+	42:  "protocol not available",
+	43:  "protocol not supported",
+	44:  "socket type not supported",
+	45:  "operation not supported",
+	46:  "protocol family not supported",
+	47:  "address family not supported by protocol family",
+	48:  "address already in use",
+	49:  "can't assign requested address",
+	50:  "network is down",
+	51:  "network is unreachable",
+	52:  "network dropped connection on reset",
+	53:  "software caused connection abort",
+	54:  "connection reset by peer",
+	55:  "no buffer space available",
+	56:  "socket is already connected",
+	57:  "socket is not connected",
+	58:  "can't send after socket shutdown",
+	59:  "too many references: can't splice",
+	60:  "operation timed out",
+	61:  "connection refused",
+	62:  "too many levels of symbolic links",
+	63:  "file name too long",
+	64:  "host is down",
+	65:  "no route to host",
+	66:  "directory not empty",
+	67:  "too many processes",
+	68:  "too many users",
+	69:  "disc quota exceeded",
+	70:  "stale NFS file handle",
+	71:  "too many levels of remote in path",
+	72:  "RPC struct is bad",
+	73:  "RPC version wrong",
+	74:  "RPC prog. not avail",
+	75:  "program version wrong",
+	76:  "bad procedure for program",
+	77:  "no locks available",
+	78:  "function not implemented",
+	79:  "inappropriate file type or format",
+	80:  "authentication error",
+	81:  "need authenticator",
+	82:  "device power is off",
+	83:  "device error",
+	84:  "value too large to be stored in data type",
+	85:  "bad executable (or shared library)",
+	86:  "bad CPU type in executable",
+	87:  "shared library version mismatch",
+	88:  "malformed Mach-o file",
+	89:  "operation canceled",
+	90:  "identifier removed",
+	91:  "no message of desired type",
+	92:  "illegal byte sequence",
+	93:  "attribute not found",
+	94:  "bad message",
+	95:  "EMULTIHOP (Reserved)",
+	96:  "no message available on STREAM",
+	97:  "ENOLINK (Reserved)",
+	98:  "no STREAM resources",
+	99:  "not a STREAM",
+	100: "protocol error",
+	101: "STREAM ioctl timeout",
+	102: "operation not supported on socket",
+	103: "policy not found",
+	104: "state not recoverable",
+	105: "previous owner died",
+	106: "interface output queue is full",
+}
+
+// Signal table
+var signals = [...]string{
+	1:  "hangup",
+	2:  "interrupt",
+	3:  "quit",
+	4:  "illegal instruction",
+	5:  "trace/BPT trap",
+	6:  "abort trap",
+	7:  "EMT trap",
+	8:  "floating point exception",
+	9:  "killed",
+	10: "bus error",
+	11: "segmentation fault",
+	12: "bad system call",
+	13: "broken pipe",
+	14: "alarm clock",
+	15: "terminated",
+	16: "urgent I/O condition",
+	17: "suspended (signal)",
+	18: "suspended",
+	19: "continued",
+	20: "child exited",
+	21: "stopped (tty input)",
+	22: "stopped (tty output)",
+	23: "I/O possible",
+	24: "cputime limit exceeded",
+	25: "filesize limit exceeded",
+	26: "virtual timer expired",
+	27: "profiling timer expired",
+	28: "window size changes",
+	29: "information request",
+	30: "user defined signal 1",
+	31: "user defined signal 2",
+}
diff --git a/unix/zerrors_darwin_arm64.go b/unix/zerrors_darwin_arm64.go
index 3189c6b..cc8cc5b 100644
--- a/unix/zerrors_darwin_arm64.go
+++ b/unix/zerrors_darwin_arm64.go
@@ -1,5 +1,5 @@
 // mkerrors.sh -m64
-// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
+// Code generated by the command above; see README.md. DO NOT EDIT.
 
 // +build arm64,darwin
 
@@ -48,6 +48,7 @@
 	AF_UNIX                           = 0x1
 	AF_UNSPEC                         = 0x0
 	AF_UTUN                           = 0x26
+	ALTWERASE                         = 0x200
 	B0                                = 0x0
 	B110                              = 0x6e
 	B115200                           = 0x1c200
@@ -138,9 +139,26 @@
 	BPF_W                             = 0x0
 	BPF_X                             = 0x8
 	BRKINT                            = 0x2
+	BS0                               = 0x0
+	BS1                               = 0x8000
+	BSDLY                             = 0x8000
 	CFLUSH                            = 0xf
 	CLOCAL                            = 0x8000
+	CLOCK_MONOTONIC                   = 0x6
+	CLOCK_MONOTONIC_RAW               = 0x4
+	CLOCK_MONOTONIC_RAW_APPROX        = 0x5
+	CLOCK_PROCESS_CPUTIME_ID          = 0xc
+	CLOCK_REALTIME                    = 0x0
+	CLOCK_THREAD_CPUTIME_ID           = 0x10
+	CLOCK_UPTIME_RAW                  = 0x8
+	CLOCK_UPTIME_RAW_APPROX           = 0x9
+	CR0                               = 0x0
+	CR1                               = 0x1000
+	CR2                               = 0x2000
+	CR3                               = 0x3000
+	CRDLY                             = 0x3000
 	CREAD                             = 0x800
+	CRTSCTS                           = 0x30000
 	CS5                               = 0x0
 	CS6                               = 0x100
 	CS7                               = 0x200
@@ -332,13 +350,14 @@
 	ECHONL                            = 0x10
 	ECHOPRT                           = 0x20
 	EVFILT_AIO                        = -0x3
+	EVFILT_EXCEPT                     = -0xf
 	EVFILT_FS                         = -0x9
 	EVFILT_MACHPORT                   = -0x8
 	EVFILT_PROC                       = -0x5
 	EVFILT_READ                       = -0x1
 	EVFILT_SIGNAL                     = -0x6
-	EVFILT_SYSCOUNT                   = 0xe
-	EVFILT_THREADMARKER               = 0xe
+	EVFILT_SYSCOUNT                   = 0xf
+	EVFILT_THREADMARKER               = 0xf
 	EVFILT_TIMER                      = -0x7
 	EVFILT_USER                       = -0xa
 	EVFILT_VM                         = -0xc
@@ -349,6 +368,7 @@
 	EV_DELETE                         = 0x2
 	EV_DISABLE                        = 0x8
 	EV_DISPATCH                       = 0x80
+	EV_DISPATCH2                      = 0x180
 	EV_ENABLE                         = 0x4
 	EV_EOF                            = 0x8000
 	EV_ERROR                          = 0x4000
@@ -359,16 +379,25 @@
 	EV_POLL                           = 0x1000
 	EV_RECEIPT                        = 0x40
 	EV_SYSFLAGS                       = 0xf000
+	EV_UDATA_SPECIFIC                 = 0x100
+	EV_VANISHED                       = 0x200
 	EXTA                              = 0x4b00
 	EXTB                              = 0x9600
 	EXTPROC                           = 0x800
 	FD_CLOEXEC                        = 0x1
 	FD_SETSIZE                        = 0x400
+	FF0                               = 0x0
+	FF1                               = 0x4000
+	FFDLY                             = 0x4000
 	FLUSHO                            = 0x800000
 	F_ADDFILESIGS                     = 0x3d
+	F_ADDFILESIGS_FOR_DYLD_SIM        = 0x53
+	F_ADDFILESIGS_RETURN              = 0x61
 	F_ADDSIGS                         = 0x3b
 	F_ALLOCATEALL                     = 0x4
 	F_ALLOCATECONTIG                  = 0x2
+	F_BARRIERFSYNC                    = 0x55
+	F_CHECK_LV                        = 0x62
 	F_CHKCLEAN                        = 0x29
 	F_DUPFD                           = 0x0
 	F_DUPFD_CLOEXEC                   = 0x43
@@ -770,11 +799,13 @@
 	MADV_FREE_REUSABLE                = 0x7
 	MADV_FREE_REUSE                   = 0x8
 	MADV_NORMAL                       = 0x0
+	MADV_PAGEOUT                      = 0xa
 	MADV_RANDOM                       = 0x1
 	MADV_SEQUENTIAL                   = 0x2
 	MADV_WILLNEED                     = 0x3
 	MADV_ZERO_WIRED_PAGES             = 0x6
 	MAP_ANON                          = 0x1000
+	MAP_ANONYMOUS                     = 0x1000
 	MAP_COPY                          = 0x2
 	MAP_FILE                          = 0x0
 	MAP_FIXED                         = 0x10
@@ -786,9 +817,43 @@
 	MAP_PRIVATE                       = 0x2
 	MAP_RENAME                        = 0x20
 	MAP_RESERVED0080                  = 0x80
+	MAP_RESILIENT_CODESIGN            = 0x2000
+	MAP_RESILIENT_MEDIA               = 0x4000
 	MAP_SHARED                        = 0x1
 	MCL_CURRENT                       = 0x1
 	MCL_FUTURE                        = 0x2
+	MNT_ASYNC                         = 0x40
+	MNT_AUTOMOUNTED                   = 0x400000
+	MNT_CMDFLAGS                      = 0xf0000
+	MNT_CPROTECT                      = 0x80
+	MNT_DEFWRITE                      = 0x2000000
+	MNT_DONTBROWSE                    = 0x100000
+	MNT_DOVOLFS                       = 0x8000
+	MNT_DWAIT                         = 0x4
+	MNT_EXPORTED                      = 0x100
+	MNT_FORCE                         = 0x80000
+	MNT_IGNORE_OWNERSHIP              = 0x200000
+	MNT_JOURNALED                     = 0x800000
+	MNT_LOCAL                         = 0x1000
+	MNT_MULTILABEL                    = 0x4000000
+	MNT_NOATIME                       = 0x10000000
+	MNT_NOBLOCK                       = 0x20000
+	MNT_NODEV                         = 0x10
+	MNT_NOEXEC                        = 0x4
+	MNT_NOSUID                        = 0x8
+	MNT_NOUSERXATTR                   = 0x1000000
+	MNT_NOWAIT                        = 0x2
+	MNT_QUARANTINE                    = 0x400
+	MNT_QUOTA                         = 0x2000
+	MNT_RDONLY                        = 0x1
+	MNT_RELOAD                        = 0x40000
+	MNT_ROOTFS                        = 0x4000
+	MNT_SYNCHRONOUS                   = 0x2
+	MNT_UNION                         = 0x20
+	MNT_UNKNOWNPERMISSIONS            = 0x200000
+	MNT_UPDATE                        = 0x10000
+	MNT_VISFLAGMASK                   = 0x17f0f5ff
+	MNT_WAIT                          = 0x1
 	MSG_CTRUNC                        = 0x20
 	MSG_DONTROUTE                     = 0x4
 	MSG_DONTWAIT                      = 0x80
@@ -819,7 +884,13 @@
 	NET_RT_MAXID                      = 0xa
 	NET_RT_STAT                       = 0x4
 	NET_RT_TRASH                      = 0x5
+	NL0                               = 0x0
+	NL1                               = 0x100
+	NL2                               = 0x200
+	NL3                               = 0x300
+	NLDLY                             = 0x300
 	NOFLSH                            = 0x80000000
+	NOKERNINFO                        = 0x2000000
 	NOTE_ABSOLUTE                     = 0x8
 	NOTE_ATTRIB                       = 0x8
 	NOTE_BACKGROUND                   = 0x40
@@ -843,11 +914,14 @@
 	NOTE_FFNOP                        = 0x0
 	NOTE_FFOR                         = 0x80000000
 	NOTE_FORK                         = 0x40000000
+	NOTE_FUNLOCK                      = 0x100
 	NOTE_LEEWAY                       = 0x10
 	NOTE_LINK                         = 0x10
 	NOTE_LOWAT                        = 0x1
+	NOTE_MACH_CONTINUOUS_TIME         = 0x80
 	NOTE_NONE                         = 0x80
 	NOTE_NSECONDS                     = 0x4
+	NOTE_OOB                          = 0x2
 	NOTE_PCTRLMASK                    = -0x100000
 	NOTE_PDATAMASK                    = 0xfffff
 	NOTE_REAP                         = 0x10000000
@@ -872,6 +946,7 @@
 	ONOCR                             = 0x20
 	ONOEOT                            = 0x8
 	OPOST                             = 0x1
+	OXTABS                            = 0x4
 	O_ACCMODE                         = 0x3
 	O_ALERT                           = 0x20000000
 	O_APPEND                          = 0x8
@@ -880,6 +955,7 @@
 	O_CREAT                           = 0x200
 	O_DIRECTORY                       = 0x100000
 	O_DP_GETRAWENCRYPTED              = 0x1
+	O_DP_GETRAWUNENCRYPTED            = 0x2
 	O_DSYNC                           = 0x400000
 	O_EVTONLY                         = 0x8000
 	O_EXCL                            = 0x800
@@ -932,7 +1008,10 @@
 	RLIMIT_CPU_USAGE_MONITOR          = 0x2
 	RLIMIT_DATA                       = 0x2
 	RLIMIT_FSIZE                      = 0x1
+	RLIMIT_MEMLOCK                    = 0x6
 	RLIMIT_NOFILE                     = 0x8
+	RLIMIT_NPROC                      = 0x7
+	RLIMIT_RSS                        = 0x5
 	RLIMIT_STACK                      = 0x3
 	RLIM_INFINITY                     = 0x7fffffffffffffff
 	RTAX_AUTHOR                       = 0x6
@@ -1102,6 +1181,8 @@
 	SO_LABEL                          = 0x1010
 	SO_LINGER                         = 0x80
 	SO_LINGER_SEC                     = 0x1080
+	SO_NETSVC_MARKING_LEVEL           = 0x1119
+	SO_NET_SERVICE_TYPE               = 0x1116
 	SO_NKE                            = 0x1021
 	SO_NOADDRERR                      = 0x1023
 	SO_NOSIGPIPE                      = 0x1022
@@ -1157,11 +1238,22 @@
 	S_IXGRP                           = 0x8
 	S_IXOTH                           = 0x1
 	S_IXUSR                           = 0x40
+	TAB0                              = 0x0
+	TAB1                              = 0x400
+	TAB2                              = 0x800
+	TAB3                              = 0x4
+	TABDLY                            = 0xc04
 	TCIFLUSH                          = 0x1
+	TCIOFF                            = 0x3
 	TCIOFLUSH                         = 0x3
+	TCION                             = 0x4
 	TCOFLUSH                          = 0x2
+	TCOOFF                            = 0x1
+	TCOON                             = 0x2
 	TCP_CONNECTIONTIMEOUT             = 0x20
+	TCP_CONNECTION_INFO               = 0x106
 	TCP_ENABLE_ECN                    = 0x104
+	TCP_FASTOPEN                      = 0x105
 	TCP_KEEPALIVE                     = 0x10
 	TCP_KEEPCNT                       = 0x102
 	TCP_KEEPINTVL                     = 0x101
@@ -1261,6 +1353,11 @@
 	VKILL                             = 0x5
 	VLNEXT                            = 0xe
 	VMIN                              = 0x10
+	VM_LOADAVG                        = 0x2
+	VM_MACHFACTOR                     = 0x4
+	VM_MAXID                          = 0x6
+	VM_METER                          = 0x1
+	VM_SWAPUSAGE                      = 0x5
 	VQUIT                             = 0x9
 	VREPRINT                          = 0x6
 	VSTART                            = 0xc