On Fri, Jul 19, 2013 at 9:22 AM, David Daney wrote:
> On 07/18/2013 08:29 PM, Andy Lutomirski wrote:
>>
>> Other way around: a *library* that wants to use exception handling
>> can't do so safely without the cooperation, or at least understanding,
>> of the main program and every other library tha
On Thu, 18 Jul 2013, Andy Lutomirski wrote:
> 2. It's localized. So you can mmap something, read from it *and
> handle SIGBUS*, and unmap.
There is of course no guarantee that possibly faulting memory accesses are
preserved (GCC should never introduce such an access where it wouldn't
occur in
On 07/18/2013 08:29 PM, Andy Lutomirski wrote:
On Thu, Jul 18, 2013 at 6:17 PM, David Daney wrote:
On 07/18/2013 05:50 PM, Andy Lutomirski wrote:
On Thu, Jul 18, 2013 at 5:40 PM, David Daney
wrote:
On 07/18/2013 05:26 PM, Andy Lutomirski wrote:
How is this different than throwing excepti
On Jul 19, 2013, at 2:26 AM, Andy Lutomirski wrote:
> Windows has a feature that I've wanted on Linux forever: stack-based
> (i.e. scoped) exception handling. The upshot is that you can do,
> roughly, this (pseudocode):
[...]
Indeed Windows and OpenVMS have such a mechanism. That's clean and
l
On Thu, Jul 18, 2013 at 6:17 PM, David Daney wrote:
> On 07/18/2013 05:50 PM, Andy Lutomirski wrote:
>>
>> On Thu, Jul 18, 2013 at 5:40 PM, David Daney
>> wrote:
>>>
>>> On 07/18/2013 05:26 PM, Andy Lutomirski wrote:
>>>
>>>
>>> How is this different than throwing exceptions from a signal handler
On 07/18/2013 05:50 PM, Andy Lutomirski wrote:
On Thu, Jul 18, 2013 at 5:40 PM, David Daney wrote:
On 07/18/2013 05:26 PM, Andy Lutomirski wrote:
Windows has a feature that I've wanted on Linux forever: stack-based
(i.e. scoped) exception handling. The upshot is that you can do,
roughly, thi
On Thu, Jul 18, 2013 at 5:40 PM, David Daney wrote:
> On 07/18/2013 05:26 PM, Andy Lutomirski wrote:
>>
>> Windows has a feature that I've wanted on Linux forever: stack-based
>> (i.e. scoped) exception handling. The upshot is that you can do,
>> roughly, this (pseudocode):
>>
>> int callback(...
On 07/18/2013 05:26 PM, Andy Lutomirski wrote:
Windows has a feature that I've wanted on Linux forever: stack-based
(i.e. scoped) exception handling. The upshot is that you can do,
roughly, this (pseudocode):
int callback(...)
{
/* Called if code_that_may_fault faults. May return "unwind to
Windows has a feature that I've wanted on Linux forever: stack-based
(i.e. scoped) exception handling. The upshot is that you can do,
roughly, this (pseudocode):
int callback(...)
{
/* Called if code_that_may_fault faults. May return "unwind to
landing pad", "propagate the fault", or "fixup an
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