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* [Bug c++/34684] New: Cross DLL Exceptions
@ 2008-01-06 9:22 XuHotdogs at gmail dot com
2008-01-06 15:27 ` [Bug target/34684] " pinskia at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: XuHotdogs at gmail dot com @ 2008-01-06 9:22 UTC (permalink / raw)
To: gcc-bugs
Exceptions cannot escape DLL boundaries, that is, when I throw an exception in
one DLL and place a try/catch block in another EXE executable that dynamically
loads the DLL, the exception cannot be catched! Instead, the system issues an
error message and abort.
I noticed that this problem was once fixed in one of the MinGW Project's
releases, but the patch was not merged into GCC's main development sources.
Can anyone tell me what I can do or just fix the problem?
Thanks a lot!
--
Summary: Cross DLL Exceptions
Product: gcc
Version: 4.2.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: XuHotdogs at gmail dot com
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-mingw32
GCC target triplet: i686-pc-mingw32
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34684
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug target/34684] Cross DLL Exceptions 2008-01-06 9:22 [Bug c++/34684] New: Cross DLL Exceptions XuHotdogs at gmail dot com @ 2008-01-06 15:27 ` pinskia at gcc dot gnu dot org 2008-01-06 18:14 ` XuHotdogs at gmail dot com 2008-01-09 5:28 ` [Bug c++/34684] " brian at dessent dot net 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2008-01-06 15:27 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from pinskia at gcc dot gnu dot org 2008-01-06 12:29 ------- This is a target specific issue. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Component|c++ |target http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34684 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/34684] Cross DLL Exceptions 2008-01-06 9:22 [Bug c++/34684] New: Cross DLL Exceptions XuHotdogs at gmail dot com 2008-01-06 15:27 ` [Bug target/34684] " pinskia at gcc dot gnu dot org @ 2008-01-06 18:14 ` XuHotdogs at gmail dot com 2008-01-09 5:28 ` [Bug c++/34684] " brian at dessent dot net 2 siblings, 0 replies; 4+ messages in thread From: XuHotdogs at gmail dot com @ 2008-01-06 18:14 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from XuHotdogs at gmail dot com 2008-01-06 17:18 ------- (In reply to comment #1) > This is a target specific issue. > Yet in MinGW's release 3.4.5, the problem got solved. I don't know why this happened again in GCC's official release 4.2.*. Are there anyone having the same problems? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34684 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/34684] Cross DLL Exceptions 2008-01-06 9:22 [Bug c++/34684] New: Cross DLL Exceptions XuHotdogs at gmail dot com 2008-01-06 15:27 ` [Bug target/34684] " pinskia at gcc dot gnu dot org 2008-01-06 18:14 ` XuHotdogs at gmail dot com @ 2008-01-09 5:28 ` brian at dessent dot net 2 siblings, 0 replies; 4+ messages in thread From: brian at dessent dot net @ 2008-01-09 5:28 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from brian at dessent dot net 2008-01-09 03:18 ------- FSF gcc does not currently support exceptions across shared libraries on Cygwin or MinGW. This is because a shared libgcc is required, and libgcc only builds static on those platforms. For the 3.4 gcc releases that MinGW and Cygwin ship, there is a local patch that lets exceptions across shared libraries work with static libgcc. This patch is quite a hack and was offered but never accepted upstream. It cannot be used with 4.x because the internals have changed so much. The real solution is to build libgcc shared, which is what the MinGW gcc 4.2 release does with a number of MinGW-local patches. They have not made their way into FSF gcc, so until somebody works on this FSF gcc will continue to be broken. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34684 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2008-01-09 3:19 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-01-06 9:22 [Bug c++/34684] New: Cross DLL Exceptions XuHotdogs at gmail dot com 2008-01-06 15:27 ` [Bug target/34684] " pinskia at gcc dot gnu dot org 2008-01-06 18:14 ` XuHotdogs at gmail dot com 2008-01-09 5:28 ` [Bug c++/34684] " brian at dessent dot net
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