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* [Bug c++/46646] New: [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe
@ 2010-11-24 20:42 patrick.marlier at gmail dot com
2010-12-13 11:15 ` [Bug c++/46646] " aldyh at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: patrick.marlier at gmail dot com @ 2010-11-24 20:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46646
Summary: [trans-mem] __cxa_rethrow and __builtin_eh_pointer are
unsafe
Product: gcc
Version: trans-mem
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: patrick.marlier@gmail.com
I try to 'transactify' STL and I fall into this:
/gcc/transactional-memory/libstdc++-v3/include/bits/stl_list.h: At global
scope:
/gcc/transactional-memory/libstdc++-v3/include/bits/stl_list.h:472:6: error:
unsafe function call ‘void
__cxa_rethrow()’ within ‘transaction_safe’ function
/gcc/transactional-memory/libstdc++-v3/include/bits/stl_list.h:469:2: error:
unsafe function call ‘void
* __builtin_eh_pointer(int)’ within ‘transaction_safe’ function
Temporary I set these functions as transaction_safe but I think __cxa_rethrow
needs a replacement to _ITM_cxa_rethrow.
Patrick Marlier.
Index: except.c
===================================================================
--- except.c (revision 167126)
+++ except.c (working copy)
@@ -149,8 +149,12 @@
tree
build_exc_ptr (void)
{
- return build_call_n (built_in_decls [BUILT_IN_EH_POINTER],
- 1, integer_zero_node);
+ tree tmp = built_in_decls [BUILT_IN_EH_POINTER];
+
+ if (flag_tm)
+ apply_tm_attr (tmp, get_identifier ("transaction_pure"));
+
+ return build_call_n (tmp, 1, integer_zero_node);
}
/* Declare a function NAME, returning RETURN_TYPE, taking a single
@@ -887,6 +891,9 @@
/* Declare void __cxa_rethrow (void). */
fn = push_throw_library_fn
(fn, build_function_type (void_type_node, void_list_node));
+ /* TODO Add replacement _ITM_cxa_rethrow */
+ if (flag_tm)
+ apply_tm_attr (fn, get_identifier ("transaction_pure"));
}
/* ??? Indicate that this function call allows exceptions of the type
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/46646] [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe
2010-11-24 20:42 [Bug c++/46646] New: [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe patrick.marlier at gmail dot com
@ 2010-12-13 11:15 ` aldyh at gcc dot gnu.org
2010-12-13 15:13 ` aldyh at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: aldyh at gcc dot gnu.org @ 2010-12-13 11:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46646
Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/46646] [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe
2010-11-24 20:42 [Bug c++/46646] New: [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe patrick.marlier at gmail dot com
2010-12-13 11:15 ` [Bug c++/46646] " aldyh at gcc dot gnu.org
@ 2010-12-13 15:13 ` aldyh at gcc dot gnu.org
2010-12-14 11:13 ` patrick.marlier at gmail dot com
2010-12-14 14:20 ` aldyh at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: aldyh at gcc dot gnu.org @ 2010-12-13 15:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46646
Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.12.13 15:13:26
Ever Confirmed|0 |1
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2010-12-13 15:13:26 UTC ---
Testcase?
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/46646] [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe
2010-11-24 20:42 [Bug c++/46646] New: [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe patrick.marlier at gmail dot com
2010-12-13 11:15 ` [Bug c++/46646] " aldyh at gcc dot gnu.org
2010-12-13 15:13 ` aldyh at gcc dot gnu.org
@ 2010-12-14 11:13 ` patrick.marlier at gmail dot com
2010-12-14 14:20 ` aldyh at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: patrick.marlier at gmail dot com @ 2010-12-14 11:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46646
--- Comment #2 from Patrick Marlier <patrick.marlier at gmail dot com> 2010-12-14 11:13:15 UTC ---
Created attachment 22751
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22751
testcase .ii
I will try to make a shorter one soon.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/46646] [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe
2010-11-24 20:42 [Bug c++/46646] New: [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe patrick.marlier at gmail dot com
` (2 preceding siblings ...)
2010-12-14 11:13 ` patrick.marlier at gmail dot com
@ 2010-12-14 14:20 ` aldyh at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: aldyh at gcc dot gnu.org @ 2010-12-14 14:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46646
Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #3 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2010-12-14 14:20:43 UTC ---
Fixed and committed:
http://gcc.gnu.org/ml/gcc-patches/2010-12/msg01097.html
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-12-14 14:20 UTC | newest]
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2010-11-24 20:42 [Bug c++/46646] New: [trans-mem] __cxa_rethrow and __builtin_eh_pointer are unsafe patrick.marlier at gmail dot com
2010-12-13 11:15 ` [Bug c++/46646] " aldyh at gcc dot gnu.org
2010-12-13 15:13 ` aldyh at gcc dot gnu.org
2010-12-14 11:13 ` patrick.marlier at gmail dot com
2010-12-14 14:20 ` aldyh at gcc dot gnu.org
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