2009-05-26 Basile Starynkevitch <basile@starynkevitch.net>

	* gcc/doc/plugins.texi
	(Loading plugins): typo.
	(Plugin callbacks): Documented PLUGIN_INFO, PLUGIN_GGC_START,
	PLUGIN_GGC_MARKING, PLUGIN_GGC_END, PLUGIN_REGISTER_GGC_ROOTS.
	(Interacting with the GCC Garbage Collector): Added new section.
	(Giving information about a plugin): Added new section for
	PLUGIN_INFO.
	* gcc/testsuite/gcc.dg/plugin/plugin.exp: Added ggcplug.c test plugin
	with ggcplug-test-1.c for testing PLUGIN_GGC_MARKING etc...
	* gcc/testsuite/gcc.dg/plugin/ggcplug-test-1.c: Added new file.
	* gcc/testsuite/gcc.dg/plugin/ggcplug.c: Added new file.
	* gcc/ggc.h (ggc_register_root_tab): Added declaration.
	* gcc/gcc-plugin.h (PLUGIN_GGC_START, PLUGIN_GGC_MARKING)
	(PLUGIN_GGC_END, PLUGIN_REGISTER_GGC_ROOTS): Added new events.
	(register_callback): Improved comment in declaration.
	* gcc/ggc-common.c (const_ggc_root_tab_t) Added new typedef for
	vectors.
	(extra_root_vec) Added static variable for dynamic roots
	registration.
	(ggc_register_root_tab) Added new routine.
	(ggc_mark_roots) Added iteration inside extra_root_vec, and invoke
	PLUGIN_GGC_MARKING event.
	* gcc/ggc-zone.c: Include plugin.h.
	(ggc_collect): Invoke PLUGIN_GGC_START & PLUGIN_GGC_END events.
	* gcc/ggc-page.c: Include plugin.h.
	(ggc_collect): Invoke PLUGIN_GGC_START & PLUGIN_GGC_END events.
	* gcc/plugin.c (plugin_event_name): added names of PLUGIN_GGC_START,
	PLUGIN_GGC_MARKING, PLUGIN_GGC_END, PLUGIN_REGISTER_GGC_ROOTS
	(register_callback): check lack of callbacks for
	pseudo-events. Added handling of PLUGIN_REGISTER_GGC_ROOTS,
	PLUGIN_GGC_START, PLUGIN_GGC_MARKING, PLUGIN_GGC_END.
	(invoke_plugin_callbacks): Handle PLUGIN_GGC_START,
	PLUGIN_GGC_MARKING, PLUGIN_GGC_END, PLUGIN_REGISTER_GGC_ROOTS.
	* gcc/Makefile.in (ggc-common.o, ggc-zone.o, ggc-page.o): Added
	dependency on plugin.h.
	(plugin.o): Added dependency on ggc.h...



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@147878 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 2 deletions

diff --git a/gcc/ggc.h b/gcc/ggc.h
index 5b2743b3386..e3471e45353 100644
--- a/gcc/ggc.h
+++ b/gcc/ggc.h
@@ -1,6 +1,7 @@
 /* Garbage collection for the GNU compiler.
-   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
-   Free Software Foundation, Inc.
+
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007,
+   2008, 2009 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -270,6 +271,10 @@ extern const char *ggc_alloc_string (const char *contents, int length);
    function is called, not during allocations.  */
 extern void ggc_collect	(void);
 
+/* Register an additional root table.  This can be useful for some
+   plugins.  Does nothing if the passed pointer is null. */
+extern void ggc_register_root_tab (const struct ggc_root_tab *);
+
 /* Return the number of bytes allocated at the indicated address.  */
 extern size_t ggc_get_size (const void *);