On 2019-07-05 19:10, Tom Lane wrote:
> Peter Eisentraut writes:
>> On 2019-07-05 01:33, Noah Misch wrote:
>>> I just saw this proposal. The undefined behavior in question is strictly
>>> academic. These changes do remove the need for new users to discover
>>> -fno-sanitize=nonnull-attribute, but
Peter Eisentraut writes:
> On 2019-07-05 01:33, Noah Misch wrote:
>> I just saw this proposal. The undefined behavior in question is strictly
>> academic. These changes do remove the need for new users to discover
>> -fno-sanitize=nonnull-attribute, but they make the code longer and no
>> clear
On Fri, Jul 05, 2019 at 06:14:31PM +0200, Peter Eisentraut wrote:
> On 2019-07-05 01:33, Noah Misch wrote:
> > I just saw this proposal. The undefined behavior in question is strictly
> > academic. These changes do remove the need for new users to discover
> > -fno-sanitize=nonnull-attribute, but
> This sanitizer has found real problems in the past. By removing these
> trivial issues we can then set up a build farm animal or similar to
> automatically check for any new issues.
We have done exactly this in postgis with 2 different jobs (gcc and clang)
and, even though it doesn't happen too
On 2019-07-05 01:33, Noah Misch wrote:
> I just saw this proposal. The undefined behavior in question is strictly
> academic. These changes do remove the need for new users to discover
> -fno-sanitize=nonnull-attribute, but they make the code longer and no clearer.
> Given the variety of code thi
On Mon, Jun 03, 2019 at 09:21:48PM +0200, Peter Eisentraut wrote:
> After many years of trying, it seems the -fsanitize=undefined checking
> in gcc is now working somewhat reliably. Attached is a patch that fixes
> all errors of the kind
>
> runtime error: null pointer passed as argument N, which
Hi,
I tested this patch with clang 7 on master.
- On unpatched master I can't reproduce errors with make check-world in:
src/backend/access/heap/heapam.c
src/backend/utils/cache/relcache.c (IIRC I triggered this one in a pg
previous version)
src/backend/utils/misc/guc.c
- I have a hard to reprodu
On 2019-06-05 21:30, Robert Haas wrote:
> On Mon, Jun 3, 2019 at 3:22 PM Peter Eisentraut
> wrote:
>> After many years of trying, it seems the -fsanitize=undefined checking
>> in gcc is now working somewhat reliably. Attached is a patch that fixes
>> all errors of the kind
>
> Is this as of some
On Mon, Jun 3, 2019 at 3:22 PM Peter Eisentraut
wrote:
> After many years of trying, it seems the -fsanitize=undefined checking
> in gcc is now working somewhat reliably. Attached is a patch that fixes
> all errors of the kind
Is this as of some particular gcc version?
--
Robert Haas
Enterpris
time errors from -fsanitize-undefined
These are of the form
runtime error: null pointer passed as argument N, which is declared to never be
null
---
contrib/pgcrypto/px.c | 2 +-
src/backend/access/heap/heapam.c| 2 +-
src/backend/access/heap/heapam_visibility.c
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