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Update debug channel usage in DEVELOPER-HINTS.

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Remove references to obsolete dirs.
This commit is contained in:
Dimitrie O. Paun 2002-09-18 18:29:59 +00:00 committed by Alexandre Julliard
parent df28ddf309
commit d95ce8ce5d
1 changed files with 18 additions and 29 deletions
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47
DEVELOPERS-HINTS
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@ -133,7 +133,6 @@ Tools:
Binary loader specific directories:
-----------------------------------
debugger/ - built-in debugger
if1632/ - relay code
miscemu/ - hardware instruction emulation
graphics/win16drv/ - Win16 printer driver
@ -144,7 +143,6 @@ Winelib specific directories:
-----------------------------
library/ - Required code for programs using Winelib
libtest/ - Small samples and tests
programs/ - Extended samples / system utilities
@ -296,10 +294,8 @@ Debug channels
--------------
If you need to create a new debug channel, just add the
DECLARE_DEBUG_CHANNEL to your .c file(s) and rerun
tools/make_debug. When sending out your patch, you don't need to
provide neither ./configure nor the ./include/debugdefs.h diffs. Just
indicate that those files need to be regenerated.
WINE_DEFAULT_DEBUG_CHANNEL to your .c file(s), and use them.
All the housekeeping will happen automatically.
Resources
---------
@ -514,37 +510,31 @@ DEBUG MESSAGES
To display a message only during debugging, you normally write something
like this:
TRACE(win,"abc..."); or
FIXME(win,"abc..."); or
WARN(win,"abc..."); or
ERR(win,"abc...");
TRACE("abc..."); or
FIXME("abc..."); or
WARN("abc..."); or
ERR("abc...");
depending on the seriousness of the problem. (documentation/degug-msgs
explains when it is appropriate to use each of them)
explains when it is appropriate to use each of them). You need to declare
the debug channel name at the top of the file (after the includes) using
the WINE_DEFAULT_DEBUG_CHANNEL macro, like so:
These macros are defined in include/debug.h. The macro-definitions are
generated by the shell-script tools/make_debug. It scans the source
code for symbols of this forms and puts the necessary macro
definitions in include/debug.h and include/debugdefs.h. These macros
test whether the debugging "channel" associated with the first
argument of these macros (win in the above example) is enabled and
thus decide whether to actually display the text. In addition you can
change the types of displayed messages by supplying the "-debugmsg"
option to Wine. If your debugging code is more complex than just
printf, you can use the symbols TRACE_ON(xxx), WARN_ON(xxx),
ERR_ON(xxx) and FIXME_ON(xxx) as well. These are true when channel xxx
is enabled, either permanent or in the command line. Thus, you can
write:
WINE_DEFAULT_DEBUG_CHANNEL(win);
if(TRACE_ON(win))DumpSomeStructure(&str);
If your debugging code is more complex than just printf, you can use
the macros:
TRACE_ON(xxx), WARN_ON(xxx), ERR_ON(xxx) and FIXME_ON(xxx)
to test if the given channel is enabled. Thus, you can write:
if (TRACE_ON(win)) DumpSomeStructure(&str);
Don't worry about the inefficiency of the test. If it is permanently
disabled (that is TRACE_ON(win) is 0 at compile time), the compiler will
eliminate the dead code.
You have to start tools/make_debug only if you introduced a new macro,
e.g. TRACE(win32).
For more info about debugging messages, read:
documentation/debug-msgs
@ -561,4 +551,3 @@ MORE INFO
3. In 1993 Dr. Dobbs Journal published a column called "Undocumented Corner".
4. You might want to check out BYTE from December 1983 as well :-)