Changes between Version 92 and Version 93 of BuildingCairoOnWindows

Timestamp:

Mar 30, 2023 1:03:37 PM (14 months ago)

Author:

Fujii Hironori

Comment:

--

BuildingCairoOnWindows

@@ -110 +110 @@
 
 * [wiki:"Debugging With Visual Studio"].
-* [https://github.com/WebKit/WebKit/blob/main/Introduction.md#logging-in-webkit Logging in WebKit]
+
+WebKit has two logging features, `LOG` and `dataLog`.
+
+`LOG` is documented at [https://github.com/WebKit/WebKit/blob/main/Introduction.md#logging-in-webkit Logging in WebKit].
+WebCore is using `LOG`. It outputs logs through `stderr` and `OutputDebugString` on Windows.
+
+Console applications such like jsc.exe and UI process of WebKitTestRunner, can use `stderr`.
+GUI applications (MiniBrowser.exe) and child processes can't use `stderr`.
+You have to attach a debugger to see the message of `OutputDebugString`.
+You should use [https://trac.webkit.org/wiki/Debugging%20With%20Visual%20Studio#DebuggingMultipleProcesses Child Process Debugging Power Tool] to get messages of child processes.
+
+`dataLog` has no documents. It output logs through `stderr` or a file.
+It outputs to a file if you set a env var `WTF_DATA_LOG_FILENAME`.
+You have to enable JSC logging by set env vars, for example:
+{{{
+set JSC_logGC=2
+}}}
+
 
 = Required Libraries =