Tune Tramp traces

* doc/misc/tramp.texi (Traces and Profiles): Describe call traces.

* lisp/net/tramp-compat.el: Add `tramp-suppress-trace' property for all
functions.

* lisp/net/tramp.el (tramp-verbose): Adapt docstring.
(tramp-file-name-method, tramp-file-name-user)
(tramp-file-name-domain, tramp-file-name-host)
(tramp-file-name-port, tramp-file-name-localname)
(tramp-file-name-hop, tramp-file-name-user-domain)
(tramp-file-name-host-port, tramp-file-name-port-or-default)
(tramp-tramp-file-p, tramp-find-method, tramp-find-user)
(tramp-find-host, tramp-dissect-file-name)
(tramp-dissect-hop-name, tramp-debug-buffer-name)
(tramp-debug-outline-level, tramp-get-debug-buffer)
(tramp-get-debug-file-name, tramp-read-passwd)
(tramp-clear-passwd): Add `tramp-suppress-trace' property.
(tramp-debug-message): Activate call traces.

* test/lisp/net/tramp-tests.el (tramp--test-instrument-test-case): Simplify.

1 files changed, 3 insertions, 15 deletions

diff --git a/doc/misc/tramp.texi b/doc/misc/tramp.texi
index ebfc14d9368..47beb90e6c6 100644
--- a/doc/misc/tramp.texi
+++ b/doc/misc/tramp.texi
@@ -5336,6 +5336,7 @@ The verbosity levels are
 @*@indent @w{ 8}  connection properties
 @*@indent @w{ 9}  test commands
 @*@indent @w{10}  traces (huge)
+@*@indent @w{11}  call traces (maintainer only)
 
 With @code{tramp-verbose} greater than or equal to 4, messages are
 also written to a @value{tramp} debug buffer.  Such debug buffers are
@@ -5384,21 +5385,8 @@ The debug buffer is written as a file in your
 this option with care, because it could decrease the performance of
 @value{tramp} actions.
 
-To enable stepping through @value{tramp} function call traces, they
-have to be specifically enabled as shown in this code:
-
-@lisp
-@group
-(require 'trace)
-(dolist (elt (all-completions "tramp-" obarray 'functionp))
-  (trace-function-background (intern elt)))
-(untrace-function 'tramp-read-passwd)
-@end group
-@end lisp
-
-The buffer @file{*trace-output*} contains the output from the function
-call traces.  Disable @code{tramp-read-passwd} to stop password
-strings from being written to @file{*trace-output*}.
+If @code{tramp-verbose} is greater than or equal to 11, @value{tramp}
+function call traces are written to the buffer @file{*trace-output*}.
 
 
 @node GNU Free Documentation License