darwin: adjust syscall suffix for arm64

Author: dkegel-fastly

src/syscall/syscall_libc_darwin.go

@@ -267,31 +267,6 @@ func readdir_r(dir uintptr, entry *Dirent, result **Dirent) (err error) {
 	return
 }
 
-// The odd $INODE64 suffix is an Apple compatibility feature, see
-// https://assert.cc/posts/darwin_use_64_bit_inode_vs_ctypes/
-// and https://github.com/golang/go/issues/35269
-// Without it, you get the old, smaller struct stat from mac os 10.2 or so.
-
-// struct DIR * buf fdopendir(int fd);
-//export fdopendir$INODE64
-func libc_fdopendir(fd int32) unsafe.Pointer
-
-// int readdir_r(struct DIR * buf, struct dirent *entry, struct dirent **result);
-//export readdir_r$INODE64
-func libc_readdir_r(unsafe.Pointer, unsafe.Pointer, unsafe.Pointer) int32
-
-// int stat(const char *path, struct stat * buf);
-//export stat$INODE64
-func libc_stat(pathname *byte, ptr unsafe.Pointer) int32
-
-// int fstat(int fd, struct stat * buf);
-//export fstat$INODE64
-func libc_fstat(fd int32, ptr unsafe.Pointer) int32
-
-// int lstat(const char *path, struct stat * buf);
-//export lstat$INODE64
-func libc_lstat(pathname *byte, ptr unsafe.Pointer) int32
-
 // int pipe(int32 *fds);
 //export pipe
 func libc_pipe(fds *int32) int32

src/syscall/syscall_libc_darwin_amd64.go

@@ -0,0 +1,34 @@
+//go:build darwin
+// +build darwin
+
+package syscall
+
+import (
+	"unsafe"
+)
+
+// The odd $INODE64 suffix is an Apple compatibility feature, see
+// __DARWIN_INODE64 in /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h
+// and https://assert.cc/posts/darwin_use_64_bit_inode_vs_ctypes/
+// Without it, you get the old, smaller struct stat from mac os 10.2 or so.
+// It not needed on arm64.
+
+// struct DIR * buf fdopendir(int fd);
+//export fdopendir$INODE64
+func libc_fdopendir(fd int32) unsafe.Pointer
+
+// int readdir_r(struct DIR * buf, struct dirent *entry, struct dirent **result);
+//export readdir_r$INODE64
+func libc_readdir_r(unsafe.Pointer, unsafe.Pointer, unsafe.Pointer) int32
+
+// int stat(const char *path, struct stat * buf);
+//export stat$INODE64
+func libc_stat(pathname *byte, ptr unsafe.Pointer) int32
+
+// int fstat(int fd, struct stat * buf);
+//export fstat$INODE64
+func libc_fstat(fd int32, ptr unsafe.Pointer) int32
+
+// int lstat(const char *path, struct stat * buf);
+//export lstat$INODE64
+func libc_lstat(pathname *byte, ptr unsafe.Pointer) int32

src/syscall/syscall_libc_darwin_arm64.go

@@ -0,0 +1,28 @@
+//go:build darwin
+// +build darwin
+
+package syscall
+
+import (
+	"unsafe"
+)
+
+// struct DIR * buf fdopendir(int fd);
+//export fdopendir
+func libc_fdopendir(fd int32) unsafe.Pointer
+
+// int readdir_r(struct DIR * buf, struct dirent *entry, struct dirent **result);
+//export readdir_r
+func libc_readdir_r(unsafe.Pointer, unsafe.Pointer, unsafe.Pointer) int32
+
+// int stat(const char *path, struct stat * buf);
+//export stat
+func libc_stat(pathname *byte, ptr unsafe.Pointer) int32
+
+// int fstat(int fd, struct stat * buf);
+//export fstat
+func libc_fstat(fd int32, ptr unsafe.Pointer) int32
+
+// int lstat(const char *path, struct stat * buf);
+//export lstat
+func libc_lstat(pathname *byte, ptr unsafe.Pointer) int32