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c++/6786: throwing expection on Sparc V9 causes segv



>Number:         6786
>Category:       c++
>Synopsis:       throwing expection on Sparc V9 causes segv
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu May 23 08:36:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     dominik.strasser@infineon.com
>Release:        unknown-1.0
>Organization:
>Environment:
SunOS m4 5.7 Generic_106541-17 sun4u sparc SUNW,Ultra-80
GCC 3.1
>Description:
The attached file causes a segv if compiled with
g++ -m64 exc.C.
The shared libs look OK:
ldd a.out
        libstdc++.so.4 =>        /sw/gcc3/lib/sparcv9/libstdc++.so.4
        libm.so.1 =>     /usr/lib/64/libm.so.1
        libgcc_s.so.1 =>         /sw/gcc3/lib/sparcv9/libgcc_s.so.1
        libc.so.1 =>     /usr/lib/64/libc.so.1
        libdl.so.1 =>    /usr/lib/64/libdl.so.1
        /usr/platform/SUNW,Ultra-80/lib/sparcv9/libc_psr.so.1
>How-To-Repeat:
Just compile & run.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="exc.C"
Content-Disposition: inline; filename="exc.C"

#include <exception>
#include <iostream>

using namespace std;

struct A
{
	struct B : std::exception
	{
		B() {}
	};

	void foo() {
		throw B();
	}
};

int main()
{
	try 
	{
		A a;
		a.foo();
	}
	catch (const std::exception& e)
	{
		cerr << e.what() << endl;
		return 1;
	}
	catch(...)
	{
		return 1;
	}
	return 0;
}


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