Create fileproc.md

fileproc.md

@@ -0,0 +1,46 @@
+```
+(lldb) f 6
+frame #6: 0xffffff800d34306f kernel`dofileread(ctx=0xffffff8014a43f00, fp=0xffffff80204e55e8, bufp=140380549015696, nbyte=418, offset=<unavailable>, flags=0, retval=<unavailable>) at sys_generic.c:373 [opt]
+(lldb) p *fp
+(fileproc) $36 = {
+  f_flags = 0
+  f_iocount = 1
+  f_fglob = 0xffffff802a24bea0
+  f_wset = 0x0000000000000000
+}
+(lldb) p *fp->f_fglob
+(fileglob) $37 = {
+  f_msglist = {
+    le_next = 0x0000000000000000
+    le_prev = 0x0000000000000000
+  }
+  fg_flag = 1
+  fg_count = 1
+  fg_msgcount = 0
+  fg_lflags = 128
+  fg_cred = 0xffffff801e138830
+  fg_ops = 0xffffff800d864ff8
+  fg_offset = 0
+  fg_data = 0xffffff801a4022e8
+  fg_vn_data = 0x0000000000000000
+  fg_lock = {
+    opaque = ([0] = 0, [1] = 18446744069414584320)
+  }
+  fg_label = 0xffffff802334f000
+}
+(lldb) p *fp->f_fglob->fg_ops
+(const fileops) $38 = {
+  fo_type = DTYPE_VNODE
+  fo_read = 0xffffff800d0ae6e0 (kernel`vn_read at vfs_vnops.c:999)
+  fo_write = 0xffffff800d0aea60 (kernel`vn_write at vfs_vnops.c:1073)
+  fo_ioctl = 0xffffff800d0af050 (kernel`vn_ioctl at vfs_vnops.c:1459)
+  fo_select = 0xffffff800d0af350 (kernel`vn_select at vfs_vnops.c:1547)
+  fo_close = 0xffffff800d0af400 (kernel`vn_closefile at vfs_vnops.c:1578)
+  fo_kqfilter = 0xffffff800d0af5a0 (kernel`vn_kqfilt_add at vfs_vnops.c:1692)
+  fo_drain = 0x0000000000000000
+}
+(lldb) p fp->f_fglob->fg_data
+(void *) $39 = 0xffffff801a4022e8
+(lldb) showvnodepath 0xffffff801a4022e8
+/System/Library/PrivateFrameworks/SPSupport.framework/Versions/A/Resources/SPProperties.plist
+```