RFR: JDK-8030350 : (s) Enable additional compiler warnings for GCC
tim.bell at oracle.com
Wed Feb 12 16:21:26 UTC 2014
Looks good to me as well.
On 02/12/14 12:42 AM, Erik Joelsson wrote:
> Hello Mike,
> Looks good to me.
> On 2014-02-11 20:42, Mike Duigou wrote:
>> Hello all;
>> This is a final update to the previously reviewed changeset. I had to
>> make one slight change in hotspot/src/os/bsd/vm/os_bsd.cpp to
>> accommodate a problem which appeared since this process began.
>> This change will be integrated through the jdk9/hs-rt repos.
>> From the original review request:
>>> This is a change which enables additional compiler warnings for
>>> native compilation when using GCC. The (-Wformat -Wformat-security)
>>> options are supported by GCC 3.0.4 (the earliest version I checked,
>>> c. February 2002) and later so we shouldn't see issues with
>>> incompatibility.- Wextra appears to have been added in GCC 3.4.X
>>> line (c. 2004) so it should also be reasonably well adopted and
>>> replaces -W.
>>> The core of the change is to add :
>>> -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2
>>> for general C and CC++ compilations. For HotSpot C++ compiles a
>>> slightly less aggressive set is used:
>>> -Wformat=2 -Wno-error=format-nonliteral
>>> is used.
>>> This change is targeted at the JDK 9 repos but could be backported
>>> to JDK 8 fairly easily/safely.
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