[Bug 1522423] Re: gcc does not support leak sanitizer

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: gcc-4.9 (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1522423

Title:
  gcc does not support leak sanitizer

Status in gcc-4.9 package in Ubuntu:
  Confirmed

Bug description:
  I'm using ubuntu 15.04
  I'm trying to use the "leak sanitizer" feature of address sanitizer in stand alone.

  Here is the a simple code example:

  #include <stdlib.h> 
   
  int main(){ 
      malloc(1); 
      return 0; 
  } 

  Compiled with gcc-4.9 -g -fsanitize=leak and running the program, I observe no output, and the binary does not link to /usr/lib64/liblsan.so while it should.
  With clang or the gcc-5 of ubuntu 15.04 (5.1.1) it works fine, I have the expected output:

  =================================================================
  ==7779==ERROR: LeakSanitizer: detected memory leaks

  Direct leak of 1 byte(s) in 1 object(s) allocated from:
      #0 0x7f3d7f94f9a5 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/liblsan.so.0+0xc9a5)
      #1 0x4006b3 in main /home/tellaa/dev/clang_test/main.cpp:4
      #2 0x7f3d7f599a3f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x20a3f)

  SUMMARY: LeakSanitizer: 1 byte(s) leaked in 1 allocation(s).

  For the record:
  -the gcc of ubuntu 15.10 (gcc-5.2.1) does not work either.
  - I compiled gcc from source, and it worked

  http://stackoverflow.com/questions/31210053/gcc-and-fsanitize-leak

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: gcc-4.9 4.9.2-10ubuntu13
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  Uname: Linux 3.19.0-18-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  Date: Thu Dec  3 14:52:46 2015
  InstallationDate: Installed on 2015-05-26 (191 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  SourcePackage: gcc-4.9
  UpgradeStatus: No upgrade log present (probably fresh install)

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