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| author | Thomas Fitzsimmons <fitzsim@redhat.com> | 2006-05-31 23:12:09 +0000 |
|---|---|---|
| committer | Thomas Fitzsimmons <fitzsim@gcc.gnu.org> | 2006-05-31 23:12:09 +0000 |
| commit | 99d2ea7e36d2f56d5ee3847cdb5d0cf8e14285f5 (patch) | |
| tree | d8f59d7c64714486fbf35bab84a09347819ed6b6 /gcc/java/gcj.texi | |
| parent | 07471dfbf7afc818a9e52f8507fb727d20250516 (diff) | |
| download | gcc-99d2ea7e36d2f56d5ee3847cdb5d0cf8e14285f5.zip gcc-99d2ea7e36d2f56d5ee3847cdb5d0cf8e14285f5.tar.gz gcc-99d2ea7e36d2f56d5ee3847cdb5d0cf8e14285f5.tar.bz2 | |
gcj.texi (Extensions): Document the new gcj-dbtool-based classname-to-library resolution mechanism.
2006-05-31 Thomas Fitzsimmons <fitzsim@redhat.com>
* gcj.texi (Extensions): Document the new gcj-dbtool-based
classname-to-library resolution mechanism.
Declare the old gnu.gcj.runtime.VMClassLoader.library_control
mechanism deprecated.
(libgcj Runtime Properties): Document
gnu.gcj.runtime.VMClassLoader.library_control's new default.
From-SVN: r114282
Diffstat (limited to 'gcc/java/gcj.texi')
| -rw-r--r-- | gcc/java/gcj.texi | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/gcc/java/gcj.texi b/gcc/java/gcj.texi index ae7bcb7..2f82d7f 100644 --- a/gcc/java/gcj.texi +++ b/gcc/java/gcj.texi @@ -670,16 +670,26 @@ added are to facilitate this functionality. @xref{About CNI}, for more info on how to use this in your programs. @item -When you compile your classes into a shared library they can be automatically -loaded by the @code{libgcj} system classloader. When trying to load a class -@code{gnu.pkg.SomeClass} the system classloader will first try to load the -shared library @file{lib-gnu-pkg-SomeClass.so}, if that fails to load the -class then it will try to load @file{lib-gnu-pkg.so} and finally when the -class is still not loaded it will try to load @file{lib-gnu.so}. Note that +When you compile your classes into a shared library using +@code{-findirect-dispatch} then add them to the system-wide +classmap.db file using @code{gcj-dbtool}, they will be automatically +loaded by the @code{libgcj} system classloader. This is the new, +preferred classname-to-library resolution mechanism. @xref{Invoking +gcj-dbtool}, for more information on using the classmap database. + +@item +The old classname-to-library lookup mechanism is still supported +through the @code{gnu.gcj.runtime.VMClassLoader.library_control} +property, but it is deprecated and will likely be removed in some +future release. When trying to load a class @code{gnu.pkg.SomeClass} +the system classloader will first try to load the shared library +@file{lib-gnu-pkg-SomeClass.so}, if that fails to load the class then +it will try to load @file{lib-gnu-pkg.so} and finally when the class +is still not loaded it will try to load @file{lib-gnu.so}. Note that all @samp{.}s will be transformed into @samp{-}s and that searching -for inner classes starts with their outermost outer class. If the class -cannot be found this way the system classloader tries to use -the @code{libgcj} bytecode interpreter to load the class from the standard +for inner classes starts with their outermost outer class. If the +class cannot be found this way the system classloader tries to use the +@code{libgcj} bytecode interpreter to load the class from the standard classpath. This process can be controlled to some degree via the @code{gnu.gcj.runtime.VMClassLoader.library_control} property; @xref{libgcj Runtime Properties}. @@ -2787,8 +2797,8 @@ frequently. This controls how shared libraries are automatically loaded by the built-in class loader. If this property is set to @samp{full}, a full search is done for each requested class. If this property is set to -@samp{cache} (the default), then any failed lookups are cached and not -tried again. If this property is set to @samp{never}, then lookups +@samp{cache}, then any failed lookups are cached and not tried again. +If this property is set to @samp{never} (the default), then lookups are never done. For more information, @xref{Extensions}. @item gnu.gcj.runtime.endorsed.dirs |