2009-09-13 Richard Guenther <rguenther@suse.de>

	Rafael Avila de Espindola  <espindola@google.com>

	* langhooks-def.h (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.
	(LANG_HOOKS_INITIALIZER): Adjust.
	(lhd_pass_through_t): Declare.
	* langhooks.h (struct lang_hooks): Add eh_runtime_type and
	eh_personality.
	* langhooks.c (lhd_pass_through_t): New function.

        * dwarf2out.c (output_call_frame_info, dwarf2out_do_cfi_startproc,
	dwarf2out_begin_prologue): Use personality from current_function_decl.
        * expr.h (get_personality_function): Declare.
	* expr.c (get_personality_function): New function.
	(build_personality_function): Likewise.
        * libfuncs.h (libfunc_index): Remove LTI_eh_personality.
        (eh_personality_libfunc): Remove.
        * optabs.c (build_libfunc_function): New function split out from ...
	(init_one_libfunc): ... here.
        * tree.h (DECL_FUNCTION_PERSONALITY): New.
        (tree_function_decl): Add personality.
	(lhd_gcc_personality): Declare.
	(build_personality_function): Likewise.
	* tree.c (gcc_eh_personality_decl): New.
	(lhd_gcc_personality): New function.
	* except.h (lang_eh_runtime_type): Remove.
	(enum eh_personality_kind): New.
	(build_personality_function): Declare.
	(function_needs_eh_personality): Declare.
        * except.c (lang_eh_runtime_type): Remove.
	(function_needs_eh_personality): New function.
	(add_type_for_runtime): Call lang_hooks.type_for_runtime instead.
        (sjlj_emit_function_enter, output_function_exception_table):
        Use personality from current_function_decl.
	* tree-eh.c (lower_eh_constructs): Set DECL_FUNCTION_PERSONALITY.
	* tree-inline.c (tree_can_inline_p): Do not inline across different
	EH personalities.
	(expand_call_inline): Likewise.  Adjust the callers EH personality.
	(tree_function_versioning): Copy DECL_FUNCTION_PERSONALITY.
	* cgraph.c (cgraph_add_new_function): Set DECL_FUNCTION_PERSONALITY.
	* Makefile.in (cgraph.o): Add $(EXCEPT_H) dependency.
	(c-parser.o): Likewise

	* c-tree.h (c_eh_initialized_p): Remove.
	(c_maybe_initialize_eh): Likewise.
	* c-decl.c (finish_decl): Don't call c_maybe_initialize_eh.
	(finish_decl): Don't call c_maybe_initialize_eh.
	(c_eh_initialized_p): Remove.
	(c_maybe_initialize_eh): Likewise.
        * c-parser.c (c_parser_omp_construct): Likewise.
	(c_parse_file): Initialize exception handling.

	objc/
	* objc-act.c (objc_eh_runtime_type): Export.
	(objc_init_exceptions): Remove.  Move warning code ...
	(objc_begin_try_stmt): ... here
	(objc_build_throw_stmt): ... and here.
	(objc_eh_personality_decl): New.
	(objc_eh_personality): New function.
	* objc-act.h (objc_eh_runtime_type): Declare.
	(objc_eh_personality): Likewise.
	* objc-lang.c (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.

	cp/
	* except.c (init_exception_processing): Do not set
	lang_eh_runtime_type.
	(choose_personality_routine): Do not set eh_personality_decl,
	set pragma_java_exceptions.
	* cp-lang.c (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.
	(cp_eh_personality_decl): New.
	(cp_eh_personality): Likewise.
	* Make-lang.in (cp-lang.o): Add $(EXPR_H) and $(EXCEPT_H)
	dependencies.

	java/
	* decl.c (do_nothing): Remove.
	(java_init_decl_processing): Do not set lang_eh_runtime_type.
	* Make-lang.in (lang.o): Add $(EXCEPT_H) dependency.
	* lang.c (java_eh_personality): New.
	(java_eh_personality_decl): Likewise.
	(LANG_HOOKS_EH_PERSONALITY): Define.

	ada/
	* gcc-interface/misc.c (gnat_init_gcc_eh): Do not set
	lang_eh_runtime_type.
	(LANG_HOOKS_EH_PERSONALITY): Define.
	(gnat_eh_personality_decl): New.
	(gnat_eh_personality): Likewise.
	* Make-lang.in (misc.o): Add gt-ada-misc.h dependency.
	* config-lang.in (gtfiles): Add misc.c.

	fortran/
	* f95-lang.c (gfc_maybe_initialize_eh): Do not init
	eh_personality_libfunc.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@151676 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 48 insertions, 0 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index cd5eae16880..be3b5bb5e5b 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -10214,4 +10214,52 @@ const_vector_from_tree (tree exp)
 
   return gen_rtx_CONST_VECTOR (mode, v);
 }
+
+
+/* Build a decl for a EH personality function named NAME. */
+
+tree
+build_personality_function (const char *name)
+{
+  tree decl, type;
+
+  type = build_function_type_list (integer_type_node, integer_type_node,
+				   long_long_unsigned_type_node,
+				   ptr_type_node, ptr_type_node, NULL_TREE);
+  decl = build_decl (UNKNOWN_LOCATION, FUNCTION_DECL,
+		     get_identifier (name), type);
+  DECL_ARTIFICIAL (decl) = 1;
+  DECL_EXTERNAL (decl) = 1;
+  TREE_PUBLIC (decl) = 1;
+
+  /* Zap the nonsensical SYMBOL_REF_DECL for this.  What we're left with
+     are the flags assigned by targetm.encode_section_info.  */
+  SET_SYMBOL_REF_DECL (XEXP (DECL_RTL (decl), 0), NULL);
+
+  return decl;
+}
+
+/* Extracts the personality function of DECL and returns the corresponding
+   libfunc.  */
+
+rtx
+get_personality_function (tree decl)
+{
+  tree personality = DECL_FUNCTION_PERSONALITY (decl);
+  enum eh_personality_kind pk;
+
+  pk = function_needs_eh_personality (DECL_STRUCT_FUNCTION (decl));
+  if (pk == eh_personality_none)
+    return NULL;
+
+  if (!personality
+      && pk == eh_personality_any)
+    personality = lang_hooks.eh_personality ();
+
+  if (pk == eh_personality_lang)
+    gcc_assert (personality != NULL_TREE);
+
+  return XEXP (DECL_RTL (personality), 0);
+}
+
 #include "gt-expr.h"