From 784417d1f808ea70f013a90aeede3b20e6013e39 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Sun, 16 Dec 2018 00:51:31 +0100
Subject: re PR c++/88482 (ICE when wrongly declaring __cxa_allocate_exception)

	PR c++/88482
	* except.c (verify_library_fn): New function.
	(declare_library_fn): Use it.  Initialize TM even if the non-TM
	library function has been user declared.
	(do_end_catch): Don't set TREE_NOTHROW on error_mark_node.
	(expand_start_catch_block): Don't call initialize_handler_parm
	for error_mark_node.
	(build_throw): Use verify_library_fn.  Initialize TM even if the
	non-TM library function has been user declared.  Don't crash if
	any library fn is error_mark_node.

	* g++.dg/eh/builtin5.C: New test.
	* g++.dg/eh/builtin6.C: New test.
	* g++.dg/eh/builtin7.C: New test.
	* g++.dg/eh/builtin8.C: New test.
	* g++.dg/eh/builtin9.C: New test.
	* g++.dg/eh/builtin10.C: New test.
	* g++.dg/eh/builtin11.C: New test.
	* g++.dg/parse/crash55.C: Adjust expected diagnostics.

	* eh_cpp.cc (__cxa_throw): Change DEST argument type from
	void * to void (*) (void *).
	(_ITM_cxa_throw): Likewise.
	* libitm.h (_ITM_cxa_throw): Likewise.
	* libitm.texi (_ITM_cxa_throw): Likewise.

From-SVN: r267179
---
 libitm/eh_cpp.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'libitm/eh_cpp.cc')

diff --git a/libitm/eh_cpp.cc b/libitm/eh_cpp.cc
index 7a6c376..55b0c4e 100644
--- a/libitm/eh_cpp.cc
+++ b/libitm/eh_cpp.cc
@@ -89,7 +89,7 @@ struct __cxa_eh_globals
 
 extern void *__cxa_allocate_exception (size_t) WEAK;
 extern void __cxa_free_exception (void *) WEAK;
-extern void __cxa_throw (void *, void *, void *) WEAK;
+extern void __cxa_throw (void *, void *, void (*) (void *)) WEAK;
 extern void *__cxa_begin_catch (void *) WEAK;
 extern void __cxa_end_catch (void) WEAK;
 extern void __cxa_tm_cleanup (void *, void *, unsigned int) WEAK;
@@ -98,7 +98,7 @@ extern __cxa_eh_globals *__cxa_get_globals (void) WEAK;
 #if !defined (HAVE_ELF_STYLE_WEAKREF) 
 void *__cxa_allocate_exception (size_t) { return NULL; }
 void __cxa_free_exception (void *) { return; }
-void __cxa_throw (void *, void *, void *) { return; }
+void __cxa_throw (void *, void *, void (*) (void *)) { return; }
 void *__cxa_begin_catch (void *) { return NULL; }
 void __cxa_end_catch (void) { return; }
 void __cxa_tm_cleanup (void *, void *, unsigned int) { return; }
@@ -136,7 +136,7 @@ _ITM_cxa_free_exception (void *exc_ptr)
 }
 
 void
-_ITM_cxa_throw (void *obj, void *tinfo, void *dest)
+_ITM_cxa_throw (void *obj, void *tinfo, void (*dest) (void *))
 {
   // This used to be instrumented, but does not need to be anymore.
   __cxa_throw (obj, tinfo, dest);
-- 
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