| Bug #80415 | innodb warning with innodb encryption code when building 5.7.11 | ||
|---|---|---|---|
| Submitted: | 17 Feb 2016 19:08 | Modified: | 25 Feb 2016 11:22 |
| Reporter: | Richard Prohaska | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Compiling | Severity: | S3 (Non-critical) |
| Version: | 5.7.11 | OS: | Ubuntu (15.10) |
| Assigned to: | CPU Architecture: | Any | |
[18 Feb 2016 8:58]
MySQL Verification Team
Hello Richard Prohaska, Thank you for the report. Thanks, Umesh
[18 Feb 2016 8:59]
MySQL Verification Team
-- with 5.7.11
ushastry@ubuntu1510:~/Downloads/80415/mysql-5.7.11$ CC=clang CXX=clang++ cmake . -DCMAKE_BUILD_TYPE=Debug -DDOWNLOAD_BOOST=1 -DWITH_BOOST=../boost
-- Running cmake version 3.2.2
-- Could NOT find Git (missing: GIT_EXECUTABLE)
-- Configuring with MAX_INDEXES = 64U
-- The C compiler identification is Clang 3.6.2
-- The CXX compiler identification is Clang 3.6.2
-- Check for working C compiler: /usr/bin/clang
-- Check for working C compiler: /usr/bin/clang -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/clang++
-- Check for working CXX compiler: /usr/bin/clang++ -- works
ushastry@ubuntu1510:~/Downloads/80415/mysql-5.7.11$ make
.
[ 30%] Building CXX object storage/innobase/CMakeFiles/innobase.dir/fil/fil0fil.cc.o
/home/ushastry/Downloads/80415/mysql-5.7.11/storage/innobase/fil/fil0fil.cc:813:15: warning: comparison of array 'space->encryption_key' equal to a null pointer is
always false [-Wtautological-pointer-compare]
if (space->encryption_key == NULL
~~~~~~~^~~~~~~~~~~~~~ ~~~~
/home/ushastry/Downloads/80415/mysql-5.7.11/storage/innobase/fil/fil0fil.cc:814:18: warning: comparison of array 'space->encryption_iv' equal to a null pointer is always
false [-Wtautological-pointer-compare]
|| space->encryption_iv == NULL
~~~~~~~^~~~~~~~~~~~~ ~~~~
2 warnings generated.
[25 Feb 2016 11:22]
Erlend Dahl
This has been fixed in the upcoming 5.7.12 release.
Description: Using clang to build mysql 5.7.11, see the following compilation warning. The code should be cleaned up. /home/rfp/projects/mysql.57.tsan/mysql-server/storage/innobase/fil/fil0fil.cc:813:15: warning: comparison of array 'space->encryption_key' equal to a null pointer is always false [-Wtautological-pointer-\ compare] if (space->encryption_key == NULL ~~~~~~~^~~~~~~~~~~~~~ ~~~~ /home/rfp/projects/mysql.57.tsan/mysql-server/storage/innobase/fil/fil0fil.cc:814:18: warning: comparison of array 'space->encryption_iv' equal to a null pointer is always false [-Wtautological-pointer-c\ ompare] || space->encryption_iv == NULL ~~~~~~~^~~~~~~~~~~~~ ~~~~ How to repeat: CC=clang CXX=clang++ cmake -DCMAKE_BUILD_TYPE=Debug .... make