diff --git a/src/runtime/runtime.go b/src/runtime/runtime.go
index d9c26ccb12087f..d8fe2f451f28ee 100644
--- a/src/runtime/runtime.go
+++ b/src/runtime/runtime.go
@@ -52,5 +52,8 @@ var argslice []string
 //go:linkname syscall_runtime_envs syscall.runtime_envs
 func syscall_runtime_envs() []string { return append([]string{}, envs...) }
 
+//go:linkname syscall_Getpagesize syscall.Getpagesize
+func syscall_Getpagesize() int { return int(physPageSize) }
+
 //go:linkname os_runtime_args os.runtime_args
 func os_runtime_args() []string { return append([]string{}, argslice...) }
diff --git a/src/syscall/syscall.go b/src/syscall/syscall.go
index f07c3c75d024ca..2fbe624c1fc782 100644
--- a/src/syscall/syscall.go
+++ b/src/syscall/syscall.go
@@ -95,6 +95,10 @@ func (tv *Timeval) Nano() int64 {
 	return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
 }
 
+// Getpagesize is provided by the runtime.
+
+func Getpagesize() int
+
 // use is a no-op, but the compiler cannot see that it is.
 // Calling use(p) ensures that p is kept live until that point.
 // This was needed until Go 1.6 to call syscall.Syscall correctly.
diff --git a/src/syscall/syscall_darwin_386.go b/src/syscall/syscall_darwin_386.go
index f75de000bdbb4d..11a991e78909de 100644
--- a/src/syscall/syscall_darwin_386.go
+++ b/src/syscall/syscall_darwin_386.go
@@ -6,8 +6,6 @@ package syscall
 
 import "unsafe"
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_darwin_amd64.go b/src/syscall/syscall_darwin_amd64.go
index 79083117b61e30..d7951e8654f218 100644
--- a/src/syscall/syscall_darwin_amd64.go
+++ b/src/syscall/syscall_darwin_amd64.go
@@ -6,8 +6,6 @@ package syscall
 
 import "unsafe"
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_darwin_arm.go b/src/syscall/syscall_darwin_arm.go
index fe431039f48ec1..830a2e077be723 100644
--- a/src/syscall/syscall_darwin_arm.go
+++ b/src/syscall/syscall_darwin_arm.go
@@ -6,8 +6,6 @@ package syscall
 
 import "unsafe"
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_darwin_arm64.go b/src/syscall/syscall_darwin_arm64.go
index d396e253323ad8..02316a78fcf406 100644
--- a/src/syscall/syscall_darwin_arm64.go
+++ b/src/syscall/syscall_darwin_arm64.go
@@ -6,8 +6,6 @@ package syscall
 
 import "unsafe"
 
-func Getpagesize() int { return 16384 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_dragonfly_amd64.go b/src/syscall/syscall_dragonfly_amd64.go
index 70c2ffb0350085..7cad7257cd963e 100644
--- a/src/syscall/syscall_dragonfly_amd64.go
+++ b/src/syscall/syscall_dragonfly_amd64.go
@@ -6,8 +6,6 @@ package syscall
 
 import "unsafe"
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_freebsd_386.go b/src/syscall/syscall_freebsd_386.go
index ebd3d4c9cf8353..7b53dc24944d41 100644
--- a/src/syscall/syscall_freebsd_386.go
+++ b/src/syscall/syscall_freebsd_386.go
@@ -6,8 +6,6 @@ package syscall
 
 import "unsafe"
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_freebsd_amd64.go b/src/syscall/syscall_freebsd_amd64.go
index 70c2ffb0350085..7cad7257cd963e 100644
--- a/src/syscall/syscall_freebsd_amd64.go
+++ b/src/syscall/syscall_freebsd_amd64.go
@@ -6,8 +6,6 @@ package syscall
 
 import "unsafe"
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_freebsd_arm.go b/src/syscall/syscall_freebsd_arm.go
index ab72871ddadb0d..83fa1d7bfc3b0b 100644
--- a/src/syscall/syscall_freebsd_arm.go
+++ b/src/syscall/syscall_freebsd_arm.go
@@ -6,8 +6,6 @@ package syscall
 
 import "unsafe"
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return ts.Sec*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_linux_386.go b/src/syscall/syscall_linux_386.go
index d9e0ed57edd6fe..4f3c7c440a69c9 100644
--- a/src/syscall/syscall_linux_386.go
+++ b/src/syscall/syscall_linux_386.go
@@ -14,8 +14,6 @@ const (
 	_SYS_getdents = SYS_GETDENTS64
 )
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_linux_amd64.go b/src/syscall/syscall_linux_amd64.go
index d1bda291d1594a..119204b70b549d 100644
--- a/src/syscall/syscall_linux_amd64.go
+++ b/src/syscall/syscall_linux_amd64.go
@@ -72,8 +72,6 @@ func Gettimeofday(tv *Timeval) (err error) {
 	return nil
 }
 
-func Getpagesize() int { return 4096 }
-
 func Time(t *Time_t) (tt Time_t, err error) {
 	var tv Timeval
 	errno := gettimeofday(&tv)
diff --git a/src/syscall/syscall_linux_arm.go b/src/syscall/syscall_linux_arm.go
index 7c78254673c93a..b38b7e5483e753 100644
--- a/src/syscall/syscall_linux_arm.go
+++ b/src/syscall/syscall_linux_arm.go
@@ -11,8 +11,6 @@ const (
 	_SYS_getdents = SYS_GETDENTS64
 )
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_linux_arm64.go b/src/syscall/syscall_linux_arm64.go
index 5f1478ca5c9dab..98681d359b5545 100644
--- a/src/syscall/syscall_linux_arm64.go
+++ b/src/syscall/syscall_linux_arm64.go
@@ -68,8 +68,6 @@ func Lstat(path string, stat *Stat_t) (err error) {
 //sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
 //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
 
-func Getpagesize() int { return 65536 }
-
 //sysnb	Gettimeofday(tv *Timeval) (err error)
 //sysnb	Time(t *Time_t) (tt Time_t, err error)
 
diff --git a/src/syscall/syscall_linux_mips64x.go b/src/syscall/syscall_linux_mips64x.go
index a14485a9055dc9..a1331a89f3e7ed 100644
--- a/src/syscall/syscall_linux_mips64x.go
+++ b/src/syscall/syscall_linux_mips64x.go
@@ -65,8 +65,6 @@ const (
 //sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
 //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
 
-func Getpagesize() int { return 65536 }
-
 //sysnb	Gettimeofday(tv *Timeval) (err error)
 
 func Time(t *Time_t) (tt Time_t, err error) {
diff --git a/src/syscall/syscall_linux_ppc64x.go b/src/syscall/syscall_linux_ppc64x.go
index 9f1c07e54c7180..e931ee46303525 100644
--- a/src/syscall/syscall_linux_ppc64x.go
+++ b/src/syscall/syscall_linux_ppc64x.go
@@ -64,8 +64,6 @@ const (
 //sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
 //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
 
-func Getpagesize() int { return 65536 }
-
 //sysnb	Gettimeofday(tv *Timeval) (err error)
 //sysnb	Time(t *Time_t) (tt Time_t, err error)
 
diff --git a/src/syscall/syscall_linux_s390x.go b/src/syscall/syscall_linux_s390x.go
index d74277a790d710..b67d7aab38077f 100644
--- a/src/syscall/syscall_linux_s390x.go
+++ b/src/syscall/syscall_linux_s390x.go
@@ -44,8 +44,6 @@ const (
 //sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
 //sysnb	setgroups(n int, list *_Gid_t) (err error)
 
-func Getpagesize() int { return 4096 }
-
 //sysnb	Gettimeofday(tv *Timeval) (err error)
 
 func Time(t *Time_t) (tt Time_t, err error) {
diff --git a/src/syscall/syscall_nacl.go b/src/syscall/syscall_nacl.go
index d22d0c7536af5e..e594ad34c3644f 100644
--- a/src/syscall/syscall_nacl.go
+++ b/src/syscall/syscall_nacl.go
@@ -292,7 +292,6 @@ func Getegid() int                      { return 1 }
 func Geteuid() int                      { return 1 }
 func Getgid() int                       { return 1 }
 func Getgroups() ([]int, error)         { return []int{1}, nil }
-func Getpagesize() int                  { return 65536 }
 func Getppid() int                      { return 2 }
 func Getpid() int                       { return 3 }
 func Gettimeofday(tv *Timeval) error    { return ENOSYS }
diff --git a/src/syscall/syscall_netbsd_386.go b/src/syscall/syscall_netbsd_386.go
index 2dbff07f1d957a..71c639c88b7005 100644
--- a/src/syscall/syscall_netbsd_386.go
+++ b/src/syscall/syscall_netbsd_386.go
@@ -4,8 +4,6 @@
 
 package syscall
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_netbsd_amd64.go b/src/syscall/syscall_netbsd_amd64.go
index 5784db99a5569b..4762da3a8242bc 100644
--- a/src/syscall/syscall_netbsd_amd64.go
+++ b/src/syscall/syscall_netbsd_amd64.go
@@ -4,8 +4,6 @@
 
 package syscall
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_netbsd_arm.go b/src/syscall/syscall_netbsd_arm.go
index 659698aac97c00..0160252608a0de 100644
--- a/src/syscall/syscall_netbsd_arm.go
+++ b/src/syscall/syscall_netbsd_arm.go
@@ -4,8 +4,6 @@
 
 package syscall
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_openbsd_386.go b/src/syscall/syscall_openbsd_386.go
index ad5ae14bf87185..c836a6fdf9baaf 100644
--- a/src/syscall/syscall_openbsd_386.go
+++ b/src/syscall/syscall_openbsd_386.go
@@ -4,8 +4,6 @@
 
 package syscall
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_openbsd_amd64.go b/src/syscall/syscall_openbsd_amd64.go
index 6181344cdc10c5..ca8e7c0bcbb573 100644
--- a/src/syscall/syscall_openbsd_amd64.go
+++ b/src/syscall/syscall_openbsd_amd64.go
@@ -4,8 +4,6 @@
 
 package syscall
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_openbsd_arm.go b/src/syscall/syscall_openbsd_arm.go
index ad5ae14bf87185..c836a6fdf9baaf 100644
--- a/src/syscall/syscall_openbsd_arm.go
+++ b/src/syscall/syscall_openbsd_arm.go
@@ -4,8 +4,6 @@
 
 package syscall
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_plan9.go b/src/syscall/syscall_plan9.go
index b511867cda51d4..0691889e3112a3 100644
--- a/src/syscall/syscall_plan9.go
+++ b/src/syscall/syscall_plan9.go
@@ -305,8 +305,6 @@ func Gettimeofday(tv *Timeval) error {
 	return nil
 }
 
-func Getpagesize() int { return 0x1000 }
-
 func Getegid() (egid int) { return -1 }
 func Geteuid() (euid int) { return -1 }
 func Getgid() (gid int)   { return -1 }
diff --git a/src/syscall/syscall_solaris_amd64.go b/src/syscall/syscall_solaris_amd64.go
index 67b8af1a909d64..5f918d3426d456 100644
--- a/src/syscall/syscall_solaris_amd64.go
+++ b/src/syscall/syscall_solaris_amd64.go
@@ -4,8 +4,6 @@
 
 package syscall
 
-func Getpagesize() int { return 4096 }
-
 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
 
 func NsecToTimespec(nsec int64) (ts Timespec) {
diff --git a/src/syscall/syscall_windows.go b/src/syscall/syscall_windows.go
index a2728e92920009..e13d6e2dd5a531 100644
--- a/src/syscall/syscall_windows.go
+++ b/src/syscall/syscall_windows.go
@@ -74,8 +74,6 @@ func UTF16PtrFromString(s string) (*uint16, error) {
 	return &a[0], nil
 }
 
-func Getpagesize() int { return 4096 }
-
 // Errno is the Windows error number.
 type Errno uintptr