Makefile.in (tree.o): Depend on ggc.h.

	* Makefile.in (tree.o): Depend on ggc.h.
	(varasm.o): Likewise.
	(function.o): Likewise.
	(stmt.o): Likewise.
	(except.o): Likewise.
	(optabs.o): Likewise.
	(emit-rtl.o): Likewise.
	* emit-rtl.c: Include ggc.h.
	(sequence_element_free_list): Remove, and all references.
	(mark_sequence): New functions.
	(mark_emit_state): New function.
	* except.c: Include ggc.h.
	(mark_eh_node, mark_eh_stack, mark_eh_queue): New functions.
	(mark_tree_label_node): New functions.
	(mark_eh_state): New function.
	* function.c: Include ggc.h.
	(mark_temp_slot, mark_function_chain): New functions.
	(mark_function_state): New function.
	(init_function_once): New function.
	* function.h (init_function_once): New function.
	* ggc-callbacks.c (lang_mark_false_label_stack): New function.
	* ggc.h (label_node): Declare.
	(eh_status, emit_status, stmt_status, varasm_status): Likewise.
	(lang_mark_false_label_stack): New function.
	(mark_temp_slot): Remove declaration.
	(mark_function_chain): Likewise.
	(mark_eh_state): Adjust prototype.
	(mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab):
	Likewise.
	* optabs.c: Include ggc.h.
	(mark_optab): New function.
	(init_optabs): Add gc roots.
	* stmt.c: Include ggc.h.
	(mark_cond_nesting, mark_loop_nesting): New functions.
	(mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise.
	(mark_stmt_state): New function.
	* toplev.c (compile_file): Call init_function_once.
	* tree.c: Include ggc.h.
	(type_hash): Move declaration earlier in file.
	(TYPE_HASH_SIZE, type_hash_table): Likewise.
	(init_obstacks): Add gc roots.
	(mark_type_hash): New function.
	* varasm.c: Include ggc.h.
	(mark_pool_constant): New function.
	(mark_varasm_state): New function.

Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk>
Co-Authored-By: Mark Mitchell <mark@codesourcery.com>

From-SVN: r29119

1 files changed, 19 insertions, 6 deletions

diff --git a/gcc/ggc.h b/gcc/ggc.h
index bb0be13..6967900 100644
--- a/gcc/ggc.h
+++ b/gcc/ggc.h
@@ -23,6 +23,16 @@
 /* Symbols are marked with `ggc' for `gcc gc' so as not to interfere with
    an external gc library that might be linked in.  */
 
+/* These structures are defined in various headers throughout the
+   compiler.  However, rather than force everyone who includes this
+   header to include all the headers in which they are declared, we
+   just forward-declare them here.  */
+struct label_node;
+struct eh_status;
+struct emit_status;
+struct stmt_status;
+struct varasm_status;
+
 /* Startup */
 
 extern void init_ggc PROTO ((void));
@@ -61,12 +71,15 @@ void lang_mark_tree PROTO ((union tree_node *));
 /* And similarly to free that data when the tree node is released.  */
 void lang_cleanup_tree PROTO ((union tree_node *));
 
+/* The FALSE_LABEL_STACK, declared in except.h, has
+   language-dependent semantics.  Each front-end should define this
+   function appropriately.  */
+void lang_mark_false_label_stack PROTO ((struct label_node *));
+
 /* Mark functions for various structs scattered about.  */
 
-void mark_temp_slot PROTO ((void *));
-void mark_function_chain PROTO ((void *));
-void mark_eh_state PROTO ((void *));
-void mark_stmt_state PROTO ((void *));
-void mark_emit_state PROTO ((void *));
-void mark_varasm_state PROTO ((void *));
+void mark_eh_state PROTO ((struct eh_status *));
+void mark_stmt_state PROTO ((struct stmt_status *));
+void mark_emit_state PROTO ((struct emit_status *));
+void mark_varasm_state PROTO ((struct varasm_status *));
 void mark_optab PROTO ((void *));